(function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
(function (global){
'use strict';

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _react = require('react');

var _react2 = _interopRequireDefault(_react);

var _propTypes = require('prop-types');

var _propTypes2 = _interopRequireDefault(_propTypes);

var _reactDom = require('react-dom');

var _reactRouterDom = require('react-router-dom');

var _history = require('history');

var _mdToHtml = require('./mdToHtml');

var _mdToHtml2 = _interopRequireDefault(_mdToHtml);

var _index = require('./index.jsx');

var _index2 = _interopRequireDefault(_index);

var _main = require('./main.jsx');

var _main2 = _interopRequireDefault(_main);

var _search = require('./search.jsx');

var _search2 = _interopRequireDefault(_search);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

global.hash = ' ';
global.isMouseClickNav = false;
global.isMouseScrollArticle = false;

global.isLinkClicked = false;

global.lastUrlBeforeSearch = '/';
global.lastHistoryIndex = 0;
global.lastAction = 'PUSH';
global.isShowHelperSupport = false;
global.scrollBehavior = 'smooth';
// global.gHistoryGo = 0;


global.readFile = function (fileName, callback) {
  console.log("global.readFile...");
  var xhr = new XMLHttpRequest();
  xhr.open('GET', fileName);
  xhr.onload = function () {
    if (xhr.responseText != '') {
      callback(xhr.responseText);
    }
  };
  xhr.send();
};

var App = function (_React$Component) {
  _inherits(App, _React$Component);

  function App(props, context) {
    _classCallCheck(this, App);

    var _this = _possibleConstructorReturn(this, (App.__proto__ || Object.getPrototypeOf(App)).call(this, props, context));

    _this.state = {
      init: false,
      searchResult: [],
      mismatch: false,
      historyGO: 0
    };
    new QWebChannel(qt.webChannelTransport, _this.initQt.bind(_this));
    return _this;
  }

  _createClass(App, [{
    key: 'initQt',
    value: function initQt(channel) {
      var _this2 = this;

      console.log("channel initqt.....");
      channel.objects.i18n.getSentences(function (i18n) {
        channel.objects.i18n.getLocale(function (lang) {
          if (lang === 'en_US' || lang === 'zh_CN') {
            global.lang = lang;
          } else {
            global.lang = 'en_US';
          }
        });

        global.i18n = i18n;
        global.qtObjects = channel.objects;

        global.qtObjects.manual.hasSelperSupport(function (bFlag) {
          global.isShowHelperSupport = bFlag;
        });

        global.qtObjects.manual.bIsLongSon(function (isLongSon) {
          if (isLongSon) {
            global.scrollBehavior = 'auto';
          }
        });

        channel.objects.manual.getSystemManualDir(function (path) {
          global.path = path;
        });
        // global.openWindow = global.qtObjects.manual.openExternalLink;
        // global.qtObjects.titleBar.setBackwardButtonActive(false);
        // global.qtObjects.titleBar.setForwardButtonActive(false);
        global.qtObjects.titleBar.backwardButtonClicked.connect(_this2.onBackwardClick.bind(_this2));
        global.qtObjects.titleBar.forwardButtonClicked.connect(_this2.onForwardClick.bind(_this2));
        global.qtObjects.search.mismatch.connect(function () {
          return _this2.setState({ mismatch: true });
        });
        global.qtObjects.search.onContentResult.connect(_this2.onContentResult.bind(_this2));
        global.qtObjects.manual.searchEditTextisEmpty.connect(_this2.onSearchEditClear.bind(_this2));
        global.qtObjects.theme.getTheme(function (themeType) {
          return _this2.themeChange(themeType);
        });
        global.qtObjects.theme.themeChange.connect(_this2.themeChange.bind(_this2));
        global.qtObjects.settings.fontChangeRequested.connect(_this2.onFontChange.bind(_this2));
        console.log("finsh global.qtObjects = channel.objects...");
        global.qtObjects.manual.finishChannel();
        global.qtObjects.manual.renderFinish();
      });
    }
  }, {
    key: 'onBackwardClick',
    value: function onBackwardClick() {
      global.handleLocation(global.hash);
      console.log("----------backwardButtonClicked----------");
      this.setState({ historyGO: this.state.historyGO - 1 });
      console.log("==========backwardButtonClicked=========>");
      this.context.router.history.goBack();
      console.log("back history location: " + this.context.router.history.location.pathname);
    }
  }, {
    key: 'onForwardClick',
    value: function onForwardClick() {
      global.handleLocation(global.hash);
      console.log("----------forwardButtonClicked----------");
      this.setState({ historyGO: this.state.historyGO + 1 });
      console.log("==========forwardButtonClicked=========>");
      this.context.router.history.goForward();
      console.log("forward history location: " + this.context.router.history.location.pathname);
    }
  }, {
    key: 'onFontChange',
    value: function onFontChange(fontFamily, fontSize) {
      console.log("fontChangeRequested: fontFamily:" + fontFamily + ",fontSize:" + fontSize);
      console.log("fontSize/13.0:" + fontSize);
      var HTMLGlobal = document.querySelector('html');
      HTMLGlobal.style.fontFamily = fontFamily;
      HTMLGlobal.style.fontSize = fontSize; //设置rem标准   设计图上默认是在14px字体上设计,所以默认1rem = 14px.
      if (fontSize >= 18) {
        document.documentElement.style.setProperty('--index-item-size', '170px');
        document.documentElement.style.setProperty('--index-span-width', '140px');
      } else {
        document.documentElement.style.setProperty('--index-item-size', '160px');
        document.documentElement.style.setProperty('--index-span-width', '130px');
      }
    }
  }, {
    key: 'themeChange',
    value: function themeChange(themeType) {
      global.setTheme(themeType);
    }
  }, {
    key: 'onContentResult',
    value: function onContentResult(appName, titleList, idList, contentList) {
      console.log('搜索结果', appName, titleList, idList, contentList);
      var searchResult = this.state.searchResult;

      searchResult.push({
        file: global.path + '/' + appName + '/' + global.lang + '/index.md',
        idList: idList,
        titleList: titleList,
        contentList: contentList
      });
      this.setState({ searchResult: searchResult, mismatch: false });
    }

    //搜索框清空后回到上一个页面(未搜索的页面).

  }, {
    key: 'onSearchEditClear',
    value: function onSearchEditClear() {
      console.log("==================>onSearcheditclear");
      var locationPath = this.context.router.history.location.pathname;
      var list = locationPath.split("/");
      var bFlag = false;
      //open页length = 5, search页length = 3
      if (list.length == 5 && list[4] != "") {
        bFlag = true;
      } else if (list.length == 3 && list[2] != "") {
        bFlag = true;
      }

      if (bFlag) {
        var step;
        var indexGo = this.state.historyGO;
        // var indexGo = global.gHistoryGo;
        var objList = this.context.router.history.entries;
        for (var i = indexGo; i >= 0; i--) {

          var curPath = objList[i].pathname;
          var curPathList = curPath.split("/");
          if (curPathList.length == 5 && curPathList[4] == "") {
            step = indexGo - i;
            break;
          } else if (curPathList.length == 3 && curPathList[2] == "") {
            step = indexGo - i;
            break;
          } else if (curPathList.length == 2) {
            step = indexGo - i;
            break;
          }
        }
        if (step) {
          if (this.context.router.history.canGo(-1 * step)) {
            this.setState({ historyGO: this.state.historyGO - step });
            // global.gHistoryGo = global.gHistoryGo - step;
            this.context.router.history.go(-1 * step);
          }
        }
      }
    }
  }, {
    key: 'getChildContext',
    value: function getChildContext() {
      var _state = this.state,
          searchResult = _state.searchResult,
          mismatch = _state.mismatch;

      return { searchResult: searchResult, mismatch: mismatch };
    }
  }, {
    key: 'componentWillReceiveProps',
    value: function componentWillReceiveProps(nextProps) {
      console.log("app componentWillReceiveProps", this.context.router.history);
      console.log("this location: " + this.context.router.history.location);
      var pathName = this.context.router.history.location.pathname;
      var pathList = pathName.split("/");
      var cKeyword = '';

      //search页===>/search/:keyword 
      //open页=====>/open/:file/:hash?/:key? 
      if (pathList.length == 3) {
        cKeyword = pathList[2];
      } else if (pathList.length == 5) {
        cKeyword = pathList[4];
      }

      // global.qtObjects.search.getKeyword(decodeURIComponent(cKeyword));
      if (cKeyword == '%') {
        global.qtObjects.search.getKeyword(cKeyword);
      } else {
        console.log("decode URIComponent componentWillReceiveProps");
        global.qtObjects.search.getKeyword(decodeURIComponent(cKeyword));
      }

      if (this.context.router.history.action == 'PUSH') {
        var entriesLen = this.context.router.history.entries.length;
        if (entriesLen > 1) {
          var entry = this.context.router.history.entries[entriesLen - 1];
          if (entry.pathname.toString().indexOf("/search/") != -1) {
            this.setState({ historyGO: entriesLen - 1 });
            // global.gHistoryGo = entriesLen - 1;
            return;
          }
        }
        this.setState({ historyGO: entriesLen - 1 });
        // global.gHistoryGo = entriesLen - 1;
      }

      //切换状态时,去除选中状态....为何选中状态切换页面时会保留??????
      window.getSelection().empty();
    }
  }, {
    key: 'componentDidMount',
    value: function componentDidMount() {
      var _this3 = this;

      global.index = function () {
        // this.context.router.history.push('/');
        if (_this3.state.init == false) {
          _this3.setState({ init: true });
        }
      };
      global.backHome = function () {
        global.handleLocation(global.hash);
        console.log("global.backHome()" + _this3.context.router.history.entries.length);
        console.log("global.backHome()" + _this3.state.historyGO);
        var goNum = _this3.state.historyGO;
        _this3.setState({ historyGO: 0 });
        console.log("global.backHome()" + goNum);

        if (_this3.context.router.history.canGo(-1 * goNum)) {
          _this3.context.router.history.go(-1 * goNum);
          // this.context.router.history.go(0);
        }
      };

      //打开某一个文件,并定位到具体hash
      global.open = function (file) {
        var hash = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : '';
        var key = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : '';

        console.log("global.open()....file:" + file + " hash:" + hash + " key:" + key);
        //h0默认为应用名称，内容为空，所以当打开h0，将其变为h1概述的位置。
        if (hash == 'h0' || hash == '') {
          hash = 'h1';
        }
        file = encodeURIComponent(file);
        console.log("globla.open...........");
        hash = encodeURIComponent(hash);
        global.hash = hash;

        // '%'字符替换为其他非常用字符组合,来替代'%', 路由URL单含此字符会出错。。。
        if (key == '%') {
          key = '=-=';
        }

        var url = '/open/' + file + '/' + hash + '/' + key;
        console.log("globla.open==---------->");
        _this3.context.router.history.push(url);
        console.log("globla.open.=========.......");

        //Init属性设置, 放在index与opentitle中. 避免直接跳转到特定模块时会先走/模块.
        if (_this3.state.init == false) {
          _this3.setState({ init: true });
        }

        //通知qt对象,修改应用打开状态
        global.qtObjects.manual.setApplicationState(file);
      };

      global.openTitle = function (file) {
        var title = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : '';

        console.log("global linkTitle==> file:" + file + " title: " + title);
        global.handleLocation(global.hash);
        if (title !== '') {
          var filePath = global.path + '/' + file + '/' + global.lang + '/index.md';
          global.readFile(filePath, function (data) {
            var _m2h = (0, _mdToHtml2.default)(filePath, data),
                html = _m2h.html;

            var d = document.createElement('div');
            d.innerHTML = html;
            var dlist = d.querySelectorAll('[text="' + title + '"]');
            var hashID = 'h0';
            for (var i = 0; i < dlist.length; i++) {
              if (dlist[i].tagName == 'H2' || dlist[i].tagName == 'H3') {
                hashID = dlist[i].id;
              }
            }
            global.open(file, hashID);
          });
        } else {
          global.open(file);
        }
      };

      //替换当前URL,仅仅在切换到其他页面处调用...(包含前进,后退,重新打开一个新的页面)
      global.handleLocation = function () {
        var hash = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : '';

        var url = _this3.context.router.history.location.pathname;
        console.log("global.handhash: ", url);
        var urlList = url.split("/");
        if (urlList.length == 5) {
          url = '/' + urlList[1] + '/' + urlList[2] + '/' + hash + '/' + urlList[4];
          console.log("new url:", url);
          _this3.context.router.history.replace(url);
        }
      };

      //获取当前系统活动色
      global.setHashWordColor = function (strRgb) {
        console.log("hash color: ", strRgb);
        document.documentElement.style.setProperty('--nav-hash-word-color', strRgb); //btnlist 改这行

        //对系统活动色统一增加一定的值作为Hover色
        var rgb = strRgb.slice(1);
        var r = rgb.substr(0, 2);
        var g = rgb.substr(2, 2);
        var b = rgb.substr(4, 2);
        var nR = parseInt(r, 16);
        var nG = parseInt(g, 16);
        var nB = parseInt(b, 16);
        nR += 16;
        nG += 16;
        nB += 16;
        if (nR > 255) nR = 255;
        if (nG > 255) nG = 255;
        if (nB > 255) nB = 255;
        var toR = nR.toString(16);
        var toG = nG.toString(16);
        var toB = nB.toString(16);
        if (toR.length == 1) toR = '0' + toR;
        if (toG.length == 1) toG = '0' + toG;
        if (toB.length == 1) toB = '0' + toB;

        var toRGB = "#" + toR + toG + toB;
        console.log('hover color:', toRGB);
        document.documentElement.style.setProperty('--nav-hash-hover-color', toRGB);
      };

      global.setWordFontfamily = function (strFontFamily) {
        document.documentElement.style.setProperty('--nav-world-font-family', strFontFamily); //btnlist 改这行
      };

      global.setTheme = function (themeType) {
        console.log('主题切换', themeType);
        if (navigator.language.toString().indexOf('en_') != -1) {
          document.documentElement.style.setProperty('--span-line-height', '1.0rem');
          document.documentElement.style.setProperty('--span-font-size', '0.9rem');
          document.documentElement.style.setProperty('--span-maring-bottom', '0.15rem');
        } else {
          document.documentElement.style.setProperty('--span-line-height', '1.4rem');
          document.documentElement.style.setProperty('--span-font-size', '1.03rem');
          document.documentElement.style.setProperty('--span-maring-bottom', '0.15rem');
        }
        if ("DarkType" == themeType) {
          console.log('DarkType');
          document.documentElement.style.setProperty('--nav-hover-color', 'rgba(255,255,255,0.1)');
          document.documentElement.style.setProperty('--body-background-color', '#252525');
          document.documentElement.style.setProperty('--body-color-white2black', '#000000');
          document.documentElement.style.setProperty('--app-word-color', '#C0C6D4');
          document.documentElement.style.setProperty('--nav-background-color', '#282828');
          document.documentElement.style.setProperty('--nav-h2-word-color', '#C0C6D4');
          document.documentElement.style.setProperty('--nav-h3-word-color', '#C0C0C0');
          //document.documentElement.style.setProperty(`--nav-hash-word-color`, '#0059D2');     //btnlist 改这行
          document.documentElement.style.setProperty('--article-read-word-color', '#C0C6D4');
          document.documentElement.style.setProperty('--article-read-h2-word-color', '#0082FA');
          document.documentElement.style.setProperty('--article-table-text-color', '#6D7C88');
          document.documentElement.style.setProperty('--article-table-border-color', 'rgba(96, 96, 96, 0.5)');
          document.documentElement.style.setProperty('--article-table-cell-border-color', 'rgba(96, 96, 96, 0.1)');
          document.documentElement.style.setProperty('--index-item-background-color', 'rgba(255,255,255,0.05)');
          document.documentElement.style.setProperty('--index-item-hover-color', 'rgba(255,255,255,0.2)');
          document.documentElement.style.setProperty('--index-item-span-word-color', '#C0C6D4');
          document.documentElement.style.setProperty('--search-noresult-word-color', '#C0C6D4');
          document.documentElement.style.setProperty('--search-button-word-color', '#C0C6D4');
          document.documentElement.style.setProperty('--search-button-hover-word-color', '#FFFFFF');
          document.documentElement.style.setProperty('--search-items-word-color', '#6D7C88');
          document.documentElement.style.setProperty('--search-items-resultnum-word-color', '#6D7C88');
          document.documentElement.style.setProperty('--search-item-background-color', 'rgba(255,255,255,0.05)');
          document.documentElement.style.setProperty('--scrollbar-div-background-color', '#444444');
          document.documentElement.style.setProperty('--scrollbar-div-hover-background-color', '#3D3D3D');
          document.documentElement.style.setProperty('--scrollbar-div-select-background-color', '#303B69');
          document.documentElement.style.setProperty('--index-h2-color', 'rgba(255,255,255,0.05)');
          document.documentElement.style.setProperty('--search-button-background-color-start', '#484848');
          document.documentElement.style.setProperty('--search-button-background-color-end', '#414141');
          document.documentElement.style.setProperty('--search-button-hover-color-start', '#676767');
          document.documentElement.style.setProperty('--search-button-hover-color-end', '#606060');
          document.documentElement.style.setProperty('--search-WikiSearch-color', '#6D7C88');
          document.documentElement.style.setProperty('--search-itemTitle-word-color', '#C0C6D4');
          document.documentElement.style.setProperty('--search-context-word-color', '#6D7C88');
          document.documentElement.style.setProperty('--tips-background-color', '#2A2A2A');
          document.documentElement.style.setProperty('--tips-border-color', 'rgba(0, 0, 0,0.3)');
        } else if ("LightType" == themeType) {
          console.log('LightType');
          document.documentElement.style.setProperty('--nav-hover-color', 'rgba(0,0,0,0.1)');
          document.documentElement.style.setProperty('--body-background-color', '#F8F8F8');
          document.documentElement.style.setProperty('--body-color-white2black', '#FFFFFF');
          document.documentElement.style.setProperty('--app-word-color', '#414D68');
          document.documentElement.style.setProperty('--nav-background-color', '#FFFFFF');
          document.documentElement.style.setProperty('--nav-h2-word-color', '#001A2E');
          document.documentElement.style.setProperty('--nav-h3-word-color', '#001A2E');
          // document.documentElement.style.setProperty(`--nav-hash-word-color`, '#ca0c16');   //btn list 改这一行
          document.documentElement.style.setProperty('--article-read-word-color', '#000000');
          document.documentElement.style.setProperty('--article-read-h2-word-color', '#2CA7F8');
          document.documentElement.style.setProperty('--article-table-text-color', '#606060');
          document.documentElement.style.setProperty('--article-table-border-color', 'rgba(0, 0, 0, 0.1)');
          document.documentElement.style.setProperty('--article-table-cell-border-color', 'rgba(0, 0, 0, 0.05)');
          document.documentElement.style.setProperty('--index-item-background-color', '#FFFFFF');
          document.documentElement.style.setProperty('--index-item-hover-color', 'rgba(0,0,0,0.05)');
          document.documentElement.style.setProperty('--index-item-span-word-color', '#414D68');
          document.documentElement.style.setProperty('--search-noresult-word-color', '#000000');
          document.documentElement.style.setProperty('--search-button-word-color', '#414D68');
          document.documentElement.style.setProperty('--search-button-hover-word-color', '#001B2E');
          document.documentElement.style.setProperty('--search-items-word-color', '#000000');
          document.documentElement.style.setProperty('--search-items-resultnum-word-color', '#8AA1B4');
          document.documentElement.style.setProperty('--search-item-background-color', 'rgba(255,255,255,1)');
          document.documentElement.style.setProperty('--scrollbar-div-background-color', 'rgba(83,96,118,0.4)');
          document.documentElement.style.setProperty('--scrollbar-div-hover-background-color', 'rgba(83,96,118,0.5)');
          document.documentElement.style.setProperty('--scrollbar-div-select-background-color', 'rgba(83,96,118,0.6)');
          document.documentElement.style.setProperty('--index-h2-color', 'rgba(0, 0, 0, 0.1)');
          document.documentElement.style.setProperty('--search-button-background-color-start', '#E6E6E6');
          document.documentElement.style.setProperty('--search-button-background-color-end', '#E3E3E3');
          document.documentElement.style.setProperty('--search-button-hover-color-start', '#CACACA');
          document.documentElement.style.setProperty('--search-button-hover-color-end', '#C6C6C6');
          document.documentElement.style.setProperty('--search-WikiSearch-color', '#7a7a7a');
          document.documentElement.style.setProperty('--search-itemTitle-word-color', '#000000');
          document.documentElement.style.setProperty('--search-context-word-color', '#000000');
          document.documentElement.style.setProperty('--tips-background-color', '#F7F7F7');
          document.documentElement.style.setProperty('--tips-border-color', 'rgba(0,0,0,0.05)');
        } else {
          console.log('Null');
        }
      };

      var Base64 = {
        encode: function encode(str) {
          // first we use encodeURIComponent to get percent-encoded UTF-8,
          // then we convert the percent encodings into raw bytes which
          // can be fed into btoa.
          return btoa(encodeURIComponent(str).replace(/%([0-9A-F]{2})/g, function toSolidBytes(match, p1) {
            return String.fromCharCode('0x' + p1);
          }));
        },
        decode: function decode(str) {
          // Going backwards: from bytestream, to percent-encoding, to original string.
          console.log("decode URIComponent decode");
          return decodeURIComponent(atob(str).split('').map(function (c) {
            return '%' + ('00' + c.charCodeAt(0).toString(16)).slice(-2);
          }).join(''));
        }
      };

      global.openSearchPage = function (keyword) {
        global.handleLocation(global.hash);
        console.log('====>', keyword);
        var decodeKeyword = Base64.decode(keyword);
        console.log("decodeKeyword", decodeKeyword, "===", encodeURIComponent(decodeKeyword));
        console.log("openSearchPage", _this3.context.router.history);
        console.log('lastUrl:' + global.lastUrlBeforeSearch + ', lastHistoryIndex: ' + global.lastHistoryIndex);

        var entriesLen = _this3.context.router.history.entries.length;
        if ('POP' == global.lastAction && lastHistoryIndex > 0 && lastHistoryIndex < entriesLen - 1) {
          console.log("global.opensearch...");
          _this3.context.router.history.entries.length = lastHistoryIndex;
          _this3.context.router.history.length = lastHistoryIndex;
          _this3.context.router.history.index = lastHistoryIndex - 1;

          _this3.setState({ searchResult: [] });
          _this3.context.router.history.push('/search/' + encodeURIComponent(decodeKeyword));

          return;
        }

        entriesLen = _this3.context.router.history.entries.length;
        if (entriesLen > 1) {
          var entry = _this3.context.router.history.entries[entriesLen - 1];
          var entryIndex = entry.pathname.toString().indexOf("/search/");
          if (entryIndex != -1) {
            _this3.context.router.history.entries.length = entriesLen - 1;
            _this3.context.router.history.length = entriesLen - 1;
            _this3.context.router.history.index = _this3.context.router.history.entries.length - 1;
          }
        }

        _this3.setState({ searchResult: [] });
        _this3.context.router.history.push('/search/' + encodeURIComponent(decodeKeyword));
      };

      this.context.router.history.listen(function (location, action) {
        //console.log(`The current URL is ${location.pathname}${location.search}${location.hash}` );
        //console.log(`The last navigation action was ${action}`);
        //console.log("index:" + this.context.router.history.index);
        console.log("app router.history.listen...");
        global.lastUrlBeforeSearch = location.pathname;
        global.lastHistoryIndex = _this3.context.router.history.index;
        global.lastAction = action;
      });

      global.back = function () {
        console.log("global.back()");
        _this3.context.router.history.goBack();
      };
      this.componentDidUpdate();
    }
  }, {
    key: 'componentDidUpdate',
    value: function componentDidUpdate() {
      if (global.qtObjects) {
        global.qtObjects.titleBar.setBackwardButtonActive(this.state.historyGO > 0
        // global.gHistoryGo > 0
        );
        global.qtObjects.titleBar.setForwardButtonActive(this.context.router.history.length - this.state.historyGO > 1
        // this.context.router.history.length  - global.gHistoryGo > 1
        );
      }
    }
  }, {
    key: 'render',
    value: function render() {
      return _react2.default.createElement(
        'div',
        null,
        this.state.init && _react2.default.createElement(
          _reactRouterDom.Switch,
          null,
          _react2.default.createElement(_reactRouterDom.Route, { exact: true, path: '/', component: _index2.default }),
          _react2.default.createElement(_reactRouterDom.Route, { path: '/index', component: _index2.default }),
          _react2.default.createElement(_reactRouterDom.Route, { path: '/open/:file/:hash?/:key?', component: _main2.default }),
          _react2.default.createElement(_reactRouterDom.Route, { path: '/search/:keyword', component: _search2.default })
        )
      );
    }
  }]);

  return App;
}(_react2.default.Component);

App.contextTypes = {
  router: _propTypes2.default.object
};
App.childContextTypes = {
  searchResult: _propTypes2.default.array,
  mismatch: _propTypes2.default.bool
};

(0, _reactDom.render)(_react2.default.createElement(
  _reactRouterDom.Router,
  { history: (0, _history.createMemoryHistory)('/') },
  _react2.default.createElement(App, null)
), document.getElementById('app'));

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./index.jsx":3,"./main.jsx":4,"./mdToHtml":5,"./search.jsx":8,"history":14,"prop-types":28,"react":73,"react-dom":42,"react-router-dom":58}],2:[function(require,module,exports){
(function (global){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _slicedToArray = function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"]) _i["return"](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError("Invalid attempt to destructure non-iterable instance"); } }; }();

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _react = require('react');

var _react2 = _interopRequireDefault(_react);

var _reactDom = require('react-dom');

var _reactDom2 = _interopRequireDefault(_reactDom);

var _smoothScrollIntoViewIfNeeded = require('smooth-scroll-into-view-if-needed');

var _smoothScrollIntoViewIfNeeded2 = _interopRequireDefault(_smoothScrollIntoViewIfNeeded);

var _mdToHtml = require('./mdToHtml');

var _mdToHtml2 = _interopRequireDefault(_mdToHtml);

var _scrollbar = require('./scrollbar.jsx');

var _scrollbar2 = _interopRequireDefault(_scrollbar);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var Article = function (_Component) {
  _inherits(Article, _Component);

  function Article(props) {
    _classCallCheck(this, Article);

    var _this = _possibleConstructorReturn(this, (Article.__proto__ || Object.getPrototypeOf(Article)).call(this, props));

    _this.state = {
      preview: null,
      smoothScroll: false,
      fillblank: null,
      bIsTimerOut: true
    };

    _this.scroll = _this.scroll.bind(_this);
    _this.click = _this.click.bind(_this);
    _this.contentMenu = _this.contentMenu.bind(_this);

    var timerObj;
    return _this;
  }
  //滚动到锚点


  _createClass(Article, [{
    key: 'scrollToHash',
    value: function scrollToHash() {
      var _this2 = this;

      console.log("article scrollToHash ", this.hash);
      var tempHash = this.hash;

      // if (tempHash == 'h21')
      // {
      //   tempHash = 'h250';
      // }

      var hashNode = document.getElementById(tempHash);
      console.log("article scrollToHash temphash: " + tempHash + " " + hashNode);

      if (this.state.preview != null) {
        this.setState({ preview: null });
      }

      if (hashNode) {
        console.log(" article===============>");
        clearTimeout(this.timerObj);
        this.setState({ smoothScroll: true });

        this.timerObj = setTimeout(function () {
          _this2.setState({ smoothScroll: false });
        }, 800);

        (0, _smoothScrollIntoViewIfNeeded2.default)(hashNode, { behavior: global.scrollBehavior, block: 'start' }).then(function () {

          //scrollIntoView函数存在异步,如果tempHash != this.hash时,说明存在异步操作,直接return. 
          if (tempHash != _this2.hash) return;

          console.log("scrollIntoView finish..");
          //find parent h3 title of h4 title
          var hList = _reactDom2.default.findDOMNode(_this2).querySelectorAll('h2,h3,h4,h5');
          var currH3Hash = '';
          for (var i = 0; i < hList.length; i++) {
            if (hList[i].tagName == 'H3') {
              currH3Hash = hList[i].id;
            }
            if (tempHash == hList[i].id && (hList[i].tagName == 'H4' || hList[i].tagName == 'H5')) {
              console.log("article: scroll hlist:" + hList[i].tagName + "," + hList[i].id);
              console.log("currH3Hash:" + currH3Hash);
              _this2.hash = currH3Hash;
              _this2.props.setHash(currH3Hash);
              _this2.props.setScroll(currH3Hash);
              break;
            }
          }
        });
      } else {
        this.props.setHash(this.props.hlist[0].id);
      }
    }
  }, {
    key: 'componentWillMount',
    value: function componentWillMount() {
      console.log("article componentWillMount");
    }
  }, {
    key: 'componentDidMount',
    value: function componentDidMount() {
      console.log("article componentDidMount");
      this.componentDidUpdate();
    }
  }, {
    key: 'shouldComponentUpdate',
    value: function shouldComponentUpdate(nextProps, nextState) {
      console.log("article shouldComponentUpdate====", this.hash, "prop hash:", this.props.hash);
      // if (this.hash == this.props.hash)
      // {
      //   return false;
      // }
      return true;
    }
  }, {
    key: 'componentWillReceiveProps',
    value: function componentWillReceiveProps(nextProps) {
      console.log("article componentWillReceiveProps nextfile", nextProps.nextProps, ' prop.file:', this.props.file);
      if (nextProps.file != this.props.file) {
        this.hash = '';
        this.load = false;
      }
    }
  }, {
    key: 'componentWillUpdate',
    value: function componentWillUpdate() {
      console.log("article componentWillUpdate..");
      var alink_arr = document.getElementsByTagName('a');
      for (var i = 0; i < alink_arr.length; i++) {
        alink_arr[i].onclick = function () {
          global.isLinkClicked = true;
        };
      }
    }
  }, {
    key: 'componentDidUpdate',
    value: function componentDidUpdate() {
      var _this3 = this;

      console.log("article componentDidUpdate.." + this.hash + " props hash->" + this.props.hash);
      if (this.hash != this.props.hash) {
        this.hash = this.props.hash;
        this.scrollToHash();
      }
      if (!this.load) {
        var article = _reactDom2.default.findDOMNode(this);
        var read = article.querySelector('#read');
        read.focus();
        var imgList = [].concat(_toConsumableArray(article.querySelectorAll('img')));
        var loadCount = 0;
        imgList.map(function (el) {
          el.onload = function () {
            loadCount++;
            if (loadCount == imgList.length) {
              // console.log('image loaded');
              _this3.load = true;
              _this3.scrollToHash();
              var last = article.querySelector('#' + _this3.props.hlist[_this3.props.hlist.length - 1].id);
              var fillblank = {
                marginBottom: article.clientHeight - (read.clientHeight - last.offsetTop)
              };
              _this3.setState({
                fillblank: fillblank
              });
            }
          };
          el.onerror = function () {
            if (el.getAttribute('src') == el.dataset.src) {
              el.onload();
            } else {
              el.src = el.dataset.src;
            }
          };
        });
      }
    }
  }, {
    key: 'gethID',
    value: function gethID(htext) {
      var id = this.props.hlist[0].id;
      console.log(this.props.hlist[0]);
      var hlist = this.props.hlist.filter(function (h) {
        return h.text == htext;
      });
      if (hlist.length > 0) {
        id = hlist[0].id;
      }
      console.log(htext, id);
      return id;
    }
  }, {
    key: 'handleWheelScroll',
    value: function handleWheelScroll(e) {
      global.isMouseScrollArticle = true;
    }
  }, {
    key: 'handleKeyDown',
    value: function handleKeyDown(e) {
      if (38 == e.keyCode || 40 == e.keyCode) {
        global.isMouseScrollArticle = true;
      }
    }
  }, {
    key: 'handleKeyUp',
    value: function handleKeyUp(e) {
      if (38 == e.keyCode || 40 == e.keyCode) {
        global.isMouseScrollArticle = true;
      }
    }

    //滚动事件

  }, {
    key: 'scroll',
    value: function scroll() {
      // if (!this.load) {
      //   return;
      // }
      if (this.state.smoothScroll) {
        return;
      }
      if (this.state.preview != null) {
        this.setState({ preview: null });
      }
      var hList = _reactDom2.default.findDOMNode(this).querySelectorAll('h2,h3');
      var aritleView = this.refs.articleView;

      var hash = hList[0].id;
      for (var i = 0; i < hList.length; i++) {
        //console.log("article: scroll hlist:" + hList[i]);
        //console.log("article: scroll hlist offset top:" + hList[i].getBoundingClientRect().top);
        var articleTop = Math.abs(aritleView.getBoundingClientRect().top);
        //console.log(hList[i].id + "," + hList[i].nodeName + ", hList[" + i + "].offsetTop" + hList[i].offsetTop + ", articleTop" + articleTop);
        var offsetY = 10;
        if (hList[i].nodeName == 'H2') {
          offsetY = 10;
        } else if (hList[i].nodeName == 'H3') {
          offsetY = 30;
        }
        if (hList[i].offsetTop - offsetY >= articleTop) {
          //console.log("article: scroll hlist offset top:" + hList[i].offsetTop);
          break;
        }
        hash = hList[i].id;
      }
      console.log("article: scroll this.hash:" + this.hash + "   hash:" + hash);
      if (this.hash != hash) {
        console.log('article: scroll hash update');
        this.hash = hash;
        this.props.setHash(hash);
        if (global.isMouseScrollArticle) {
          this.props.setScroll(hash);
        }
      }
    }

    //链接处理

  }, {
    key: 'click',
    value: function click(e) {
      console.log("article click");
      if (this.state.preview != null) {
        this.setState({ preview: null });
      }
      console.log("======>", e.target.nodeName);
      switch (e.target.nodeName) {
        case 'IMG':
          e.preventDefault();
          var src = e.target.src;
          if (src.indexOf('.svg') != -1) {
            return;
          }
          console.log('imageViewer', src);
          global.qtObjects.imageViewer.open(src);
          return;
        case 'A':
          {
            var dmanProtocol = 'dman://';
            var hashProtocol = '#';
            var httpProtocol = 'http';
            var _href = e.target.getAttribute('href');
            console.log("href:" + _href);
            switch (0) {
              case _href.indexOf(hashProtocol):
                e.preventDefault();
                this.props.setHash(document.querySelector('[text="' + _href.slice(1) + '"]').id);
                return;
              case _href.indexOf(dmanProtocol):
                e.preventDefault();

                var _href$slice$split = _href.slice(dmanProtocol.length + 1).split('#'),
                    _href$slice$split2 = _slicedToArray(_href$slice$split, 2),
                    appName = _href$slice$split2[0],
                    hash = _href$slice$split2[1];

                global.openTitle(appName, hash);
                return;
              case _href.indexOf(httpProtocol):
                e.preventDefault();
                global.qtObjects.imageViewer.openHttpUrl(_href);
                return;
            }
          }
        //解决bug-46888, 当a标签内含有span标签,点击获取的是span标签,此时用其父元素来处理.
        case 'SPAN':
          e.preventDefault();
          var parNode = e.target.parentNode;
          if (parNode.nodeName == 'A') {
            var _dmanProtocol = 'dman://';
            var _hashProtocol = '#';
            var _httpProtocol = 'http';
            var hrefTmp = parNode.getAttribute('href');
            switch (0) {
              case hrefTmp.indexOf(_hashProtocol):
                e.preventDefault();
                this.props.setHash(document.querySelector('[text="' + href.slice(1) + '"]').id);
                return;
              case hrefTmp.indexOf(_dmanProtocol):
                e.preventDefault();

                var _hrefTmp$slice$split = hrefTmp.slice(_dmanProtocol.length + 1).split('#'),
                    _hrefTmp$slice$split2 = _slicedToArray(_hrefTmp$slice$split, 2),
                    _appName = _hrefTmp$slice$split2[0],
                    _hash = _hrefTmp$slice$split2[1];

                global.openTitle(_appName, _hash);
                return;
              case hrefTmp.indexOf(_httpProtocol):
                e.preventDefault();
                global.qtObjects.imageViewer.openHttpUrl(hrefTmp);
                return;
            }
          }
          return;
      }
    }

    //右键菜单事件

  }, {
    key: 'contentMenu',
    value: function contentMenu(e) {
      switch (e.target.nodeName) {
        //当前为图片或者链接时,右键清除选中状态.
        //当前为图片
        case 'IMG':
          e.preventDefault();
          document.getSelection().empty();
          return;
        //当前为链接
        case 'A':
          e.preventDefault();
          document.getSelection().empty();
          return;
      }
    }
  }, {
    key: 'render',
    value: function render() {
      var _this4 = this;

      console.log("article render...", this.state.preview);
      return _react2.default.createElement(
        'div',
        { id: 'article' },
        _react2.default.createElement(
          'div',
          { id: 'article_bg' },
          _react2.default.createElement(
            _scrollbar2.default,
            { onScroll: this.scroll,
              onWheel: function onWheel(e) {
                return _this4.handleWheelScroll(e);
              },
              onKeyUp: function onKeyUp(e) {
                return _this4.handleKeyUp(e);
              },
              onKeyDown: function onKeyDown(e) {
                return _this4.handleKeyDown(e);
              } },
            _react2.default.createElement('div', {
              id: 'read',
              ref: 'articleView',
              className: 'read',
              tabIndex: '-1',
              dangerouslySetInnerHTML: { __html: this.props.html },
              style: this.state.fillblank,
              onClick: this.click,
              onContextMenu: this.contentMenu
            })
          )
        )
      );
    }
  }]);

  return Article;
}(_react.Component);

exports.default = Article;

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./mdToHtml":5,"./scrollbar.jsx":7,"react":73,"react-dom":42,"smooth-scroll-into-view-if-needed":82}],3:[function(require,module,exports){
(function (global){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _slicedToArray = function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"]) _i["return"](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError("Invalid attempt to destructure non-iterable instance"); } }; }();

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _react = require('react');

var _react2 = _interopRequireDefault(_react);

var _reactRouterDom = require('react-router-dom');

var _reactDom = require('react-dom');

var _reactDom2 = _interopRequireDefault(_reactDom);

var _scrollbar = require('./scrollbar.jsx');

var _scrollbar2 = _interopRequireDefault(_scrollbar);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var Item = function (_Component) {
  _inherits(Item, _Component);

  function Item(props) {
    _classCallCheck(this, Item);

    var _this = _possibleConstructorReturn(this, (Item.__proto__ || Object.getPrototypeOf(Item)).call(this, props));

    _this.state = {
      name: '',
      title: '',
      logo: '',
      show: false
    };
    var path = global.path + '/' + _this.props.appName + '/' + global.lang + '/';
    var file = path + 'index.md';
    global.readFile(file, function (data) {
      var _data$substr$split = data.substr('# '.length, data.indexOf('\n')).split('|'),
          _data$substr$split2 = _slicedToArray(_data$substr$split, 2),
          title = _data$substr$split2[0],
          logo = _data$substr$split2[1];

      logo = '' + path + logo;

      _this.setState({ title: title, logo: logo, file: file, show: true });
    });
    return _this;
  }

  _createClass(Item, [{
    key: 'render',
    value: function render() {
      var _this2 = this;

      var contentSpan = null;
      if (this.props.isOpened) {
        contentSpan = _react2.default.createElement(
          'span',
          { className: 'content', lang: global.lang },
          this.state.title
        );
      } else {
        contentSpan = _react2.default.createElement(
          'span',
          { className: 'content', lang: global.lang },
          _react2.default.createElement('span', { className: 'tag' }),
          this.state.title
        );
      }

      return this.state.show && _react2.default.createElement(
        'div',
        {
          draggable: 'false',
          tabIndex: '1',
          className: 'item',
          onClick: function onClick() {
            return global.open(_this2.props.appName);
          },
          onKeyPress: function onKeyPress(e) {
            if (e.key === 'Enter') {
              global.open(_this2.props.appName);
            }
          }
        },
        _react2.default.createElement('img', {
          draggable: 'false',
          src: this.state.logo,
          alt: this.props.appName
        }),
        _react2.default.createElement('br', null),
        contentSpan
      );
    }
  }]);

  return Item;
}(_react.Component);

var Index = function (_Component2) {
  _inherits(Index, _Component2);

  function Index(props) {
    _classCallCheck(this, Index);

    var _this3 = _possibleConstructorReturn(this, (Index.__proto__ || Object.getPrototypeOf(Index)).call(this, props));

    _this3.state = {
      appList: [],
      openedAppList: []
    };

    global.qtObjects.manual.getSystemManualList(function (appList) {
      return _this3.setState({ appList: appList });
    });

    global.qtObjects.manual.getUsedAppList(function (openedAppList) {
      return _this3.setState({ openedAppList: openedAppList });
    });
    return _this3;
  }

  _createClass(Index, [{
    key: 'bIsBeOpen',
    value: function bIsBeOpen(app) {
      if (this.state.openedAppList.indexOf(app) != -1) {
        return true;
      }
      return false;
    }
  }, {
    key: 'shouldComponentUpdate',
    value: function shouldComponentUpdate(nextProps, nextState) {
      console.log("index shouldcomponentupdate");
      if (nextState.appList.toString() == this.state.appList.toString() && nextState.openedAppList.toString() == this.state.openedAppList.toString()) {
        console.log("index no update");
        return false;
      }
      return true;
    }
  }, {
    key: 'componentDidUpdate',
    value: function componentDidUpdate() {
      _reactDom2.default.findDOMNode(this).querySelector('#index').focus();
    }
  }, {
    key: 'render',
    value: function render() {
      var _this4 = this;

      var sysSoft = ['dde'].filter(function (appName) {
        return _this4.state.appList.indexOf(appName) != -1;
      });

      var appSoft = this.state.appList.concat(); //使用数据副本
      var index = appSoft.indexOf("dde");
      appSoft.splice(index, 1);
      // let otherSoft = [""];

      return _react2.default.createElement(
        _scrollbar2.default,
        null,
        _react2.default.createElement(
          'div',
          { id: 'index', tabIndex: '-1' },
          _react2.default.createElement(
            'h2',
            null,
            global.i18n['System']
          ),
          sysSoft.length > 0 && _react2.default.createElement(
            'div',
            { id: 'forMargin' },
            _react2.default.createElement(
              'div',
              { className: 'items' },
              sysSoft.map(function (appName) {
                return _react2.default.createElement(Item, { key: appName, appName: appName, isOpened: _this4.bIsBeOpen(appName) });
              })
            )
          ),
          _react2.default.createElement(
            'h2',
            null,
            global.i18n['Applications']
          ),
          _react2.default.createElement(
            'div',
            { id: 'forMargin' },
            _react2.default.createElement(
              'div',
              { className: 'items' },
              appSoft.map(function (appName) {
                return _react2.default.createElement(Item, { key: appName, appName: appName, isOpened: _this4.bIsBeOpen(appName) });
              })
            )
          )
        )
      );
    }
  }]);

  return Index;
}(_react.Component);

exports.default = Index;

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./scrollbar.jsx":7,"react":73,"react-dom":42,"react-router-dom":58}],4:[function(require,module,exports){
(function (global){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _react = require('react');

var _react2 = _interopRequireDefault(_react);

var _jquery = require('jquery');

var _jquery2 = _interopRequireDefault(_jquery);

var _nav = require('./nav.jsx');

var _nav2 = _interopRequireDefault(_nav);

var _article = require('./article.jsx');

var _article2 = _interopRequireDefault(_article);

var _mdToHtml = require('./mdToHtml.js');

var _mdToHtml2 = _interopRequireDefault(_mdToHtml);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var Main = function (_Component) {
  _inherits(Main, _Component);

  function Main(props) {
    _classCallCheck(this, Main);

    var _this = _possibleConstructorReturn(this, (Main.__proto__ || Object.getPrototypeOf(Main)).call(this, props));

    _this.state = {
      init: false,
      bTest: true
    };
    var _this$props$match$par = _this.props.match.params,
        file = _this$props$match$par.file,
        hash = _this$props$match$par.hash,
        key = _this$props$match$par.key;

    console.log("main constructor...");
    _this.init(decodeURIComponent(file), hash ? decodeURIComponent(hash) : null, key);
    var showFloatTimer = null;

    _this.setHash = _this.setHash.bind(_this);
    _this.setScroll = _this.setScroll.bind(_this);
    _this.onSupportClick = _this.onSupportClick.bind(_this);
    return _this;
  }

  _createClass(Main, [{
    key: 'init',
    value: function init(file, hash) {
      var _this2 = this;

      var key = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : '';


      if (key !== '%') {
        key = decodeURIComponent(key);
      }
      console.log("main init==>file:", file, " hash:", hash, " key:", key);

      global.hash = hash;
      var filePath = file;
      if (filePath.indexOf('/') == -1) {
        filePath = global.path + '/' + file + '/' + global.lang + '/index.md';
      }

      global.readFile(filePath, function (data) {
        console.log("main init===>readfile finish...", filePath);

        var _m2h = (0, _mdToHtml2.default)(filePath, data, key),
            html = _m2h.html,
            hlist = _m2h.hlist;

        _this2.setState({
          file: file,
          html: html,
          hlist: hlist,
          init: true,
          hash: hash ? hash : hlist[0].id
        });
      });
    }
  }, {
    key: 'setHash',
    value: function setHash(hash) {
      console.log("main setHash: " + hash);
      if (global.isLinkClicked) {
        console.log("main --setHash");
        global.hash = hash;
        global.isLinkClicked = false;
      }
      console.log("main*********setHash");
      this.setState({ hash: hash });
    }

    // setScrollTitle(hash){
    //   console.log("main setScrollTitle: " + hash);
    //   setTimeout(() => {
    //     global.hash = hash;
    //     global.oldHash = hash;
    //     global.isMouseClickNav = true;
    //     global.isMouseScrollArticle = false;
    //     this.setState({ hash });
    //   },800);
    // }

  }, {
    key: 'setScroll',
    value: function setScroll(hash) {
      console.log("main setScroll:" + hash);
      global.hash = hash;
      this.setState({ hash: hash });
    }

    //处理Nav类的Over Out Move事件,自定义Title框

  }, {
    key: 'handleNavOver',
    value: function handleNavOver(e) {
      var value = e.currentTarget.innerHTML;
      clearTimeout(this.showFloatTimer);
      this.showFloatTimer = setTimeout(function () {
        (0, _jquery2.default)('.tooltip-wp').attr('data-title', value); //动态设置data-title属性
        (0, _jquery2.default)('.tooltip-wp').fadeIn(200); //浮动框淡出
      }, 300);
    }
  }, {
    key: 'handleNavOut',
    value: function handleNavOut(e) {
      clearTimeout(this.showFloatTimer);
      (0, _jquery2.default)('.tooltip-wp').hide();
    }
  }, {
    key: 'handleNavMove',
    value: function handleNavMove(e) {
      var xPage = e.pageX + 10;
      var yPage = e.pageY;
      if (yPage + 40 > document.body.scrollHeight) {
        yPage = document.body.scrollHeight - 40;
      }
      setTimeout(function () {
        (0, _jquery2.default)('.tooltip-wp').css({
          'top': yPage + 'px',
          'left': xPage + 'px'
        });
      }, 150);
    }
  }, {
    key: 'onSupportClick',
    value: function onSupportClick() {
      global.qtObjects.manual.supportClick();
    }
  }, {
    key: 'componentWillReceiveProps',
    value: function componentWillReceiveProps(nextProps) {
      var _nextProps$match$para = nextProps.match.params,
          file = _nextProps$match$para.file,
          hash = _nextProps$match$para.hash,
          key = _nextProps$match$para.key;

      console.log("main componentWillReceivePropss: " + file + " " + hash + "  this.file:" + this.state.file + " this.hash" + this.state.hash + " key:", key);
      //仅当页面文件发生改变时(文件改变或hash值发生改变),才刷新页面.
      if (decodeURIComponent(file) != this.state.file || file == this.state.file && hash != this.state.hash) {
        this.init(decodeURIComponent(file), hash ? decodeURIComponent(hash) : null, key);
      }
    }
  }, {
    key: 'shouldComponentUpdate',
    value: function shouldComponentUpdate(nextProps, nextState) {
      console.log("main shouldComponentUpdate====");
      return true;
    }
  }, {
    key: 'componentWillUpdate',
    value: function componentWillUpdate() {
      console.log("main componentWillUpdate..");
    }
  }, {
    key: 'componentWillUnmount',
    value: function componentWillUnmount() {
      global.hash = '';
      global.isMouseClickNav = false;
      global.isMouseScrollArticle = false;
      global.isLinkClicked = false;
    }
  }, {
    key: 'render',
    value: function render() {
      var _this3 = this;

      console.log("main render....hash:", this.state.hash);
      console.log("main render....hList:", this.state.hlist);
      var support = null;
      if (global.isShowHelperSupport) {
        support = _react2.default.createElement(
          'div',
          { className: 'support-div', onClick: this.onSupportClick },
          _react2.default.createElement('img', { className: 'support', src: './pic.svg' })
        );
      } else {
        support = _react2.default.createElement('div', null);
      }

      return this.state.init && _react2.default.createElement(
        'div',
        { id: 'main' },
        _react2.default.createElement(_nav2.default, {
          hlist: this.state.hlist,
          hash: this.state.hash,
          setHash: this.setHash,
          onNavOver: function onNavOver(e) {
            return _this3.handleNavOver(e);
          },
          onNavOut: function onNavOut(e) {
            return _this3.handleNavOut(e);
          },
          onNavMove: function onNavMove(e) {
            return _this3.handleNavMove(e);
          }
        }),
        _react2.default.createElement(_article2.default, {
          file: this.props.match.params.file,
          hlist: this.state.hlist,
          html: this.state.html,
          hash: this.state.hash,
          setHash: this.setHash,
          setScroll: this.setScroll
        }),
        support,
        _react2.default.createElement('div', { className: 'tooltip-wp' })
      );
    }
  }]);

  return Main;
}(_react.Component);

exports.default = Main;

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./article.jsx":2,"./mdToHtml.js":5,"./nav.jsx":6,"jquery":18,"react":73}],5:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _slicedToArray = function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"]) _i["return"](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError("Invalid attempt to destructure non-iterable instance"); } }; }();

exports.default = function (mdFile, mdData) {
  var key = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : '';

  var hlist = [];
  var info = {};
  var html = '';

  var path = mdFile.slice(0, mdFile.lastIndexOf('/') + 1);
  var renderer = new _marked2.default.Renderer();
  var count = 0;
  renderer.heading = function (text, level) {
    var id = 'h' + count;
    count++;
    if (level == 1) {
      var _text$split = text.split('|'),
          _text$split2 = _slicedToArray(_text$split, 2),
          title = _text$split2[0],
          logo = _text$split2[1];

      logo = path + logo;
      console.log(logo);
      info = { title: title, logo: logo };
      return '';
    }
    if (level == 2) {
      text = text.split('|')[0];
    }
    var type = 'h' + level;
    if (level == 2 || level == 3) {
      hlist.push({ id: id, text: text, type: type });
    }
    return '<' + type + ' id="' + id + '" text="' + text + '">' + text + '</' + type + '>\n';
  };
  console.log(path);
  renderer.image = function (href, title, text) {
    var hrefX2 = href;
    if (devicePixelRatio >= 1.5 && href.indexOf('.svg') == -1) {
      var _path = href.split('.');
      var ext = _path.pop();
      hrefX2 = _path.join('.') + 'x2.' + ext;
    }
    return '<img src="' + hrefX2 + '" data-src="' + href + '" alt="' + text + '" />';
  };

  html = (0, _marked2.default)(mdData, { renderer: renderer }).replace(/src="/g, '$&' + path);
  console.log("-----------------------------------");
  if (key != '') {
    console.log("regexp==============>", key);
    //将'=-='字符串 反向还原成'%'
    key = key.replace(/=-=/g, '%');

    console.log("regexp===>", key);

    //将关键字转义
    var keyTemp = new RegExp(escapeRegExp(key), 'gi');

    // key = re;
    var finder = new RegExp(">.*?<", 'g'); // 提取位于标签内的文本，避免误操作 class、id 等
    html = html.replace(finder, function (matched) {
      return matched.replace(new RegExp(keyTemp, 'gi'), "<span style='background-color: yellow'>$&</span>");
    });
  }

  return { html: html, hlist: hlist, info: info };
};

var _marked = require('marked');

var _marked2 = _interopRequireDefault(_marked);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

//转义特定字符
function escapeRegExp(text) {
  return text.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, '\\$&');
};

},{"marked":19}],6:[function(require,module,exports){
(function (global){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _react = require('react');

var _react2 = _interopRequireDefault(_react);

var _reactDom = require('react-dom');

var _reactDom2 = _interopRequireDefault(_reactDom);

var _reactRouterDom = require('react-router-dom');

var _scrollbar = require('./scrollbar.jsx');

var _scrollbar2 = _interopRequireDefault(_scrollbar);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var Nav = function (_Component) {
  _inherits(Nav, _Component);

  function Nav(props) {
    _classCallCheck(this, Nav);

    var _this = _possibleConstructorReturn(this, (Nav.__proto__ || Object.getPrototypeOf(Nav)).call(this, props));

    _this.contentMenu = _this.contentMenu.bind(_this);
    return _this;
  }

  _createClass(Nav, [{
    key: 'componentWillMount',
    value: function componentWillMount() {
      console.log("nav componentWillMount");
    }
  }, {
    key: 'componentDidMount',
    value: function componentDidMount() {
      console.log("nav componentDidMount");
      document.getElementById('article').style.marginLeft = _reactDom2.default.findDOMNode(this).clientWidth;
      this.componentDidUpdate();
    }
  }, {
    key: 'shouldComponentUpdate',
    value: function shouldComponentUpdate(newProps, newState) {
      console.log("nav shouldComponentUpdate newProps:" + newProps.hash + " global hash:" + global.hash);

      if ('' == global.hash) {
        return true;
      }

      if ('POP' == global.lastAction) {
        return true;
      }
      //why........
      if (newProps.hash != global.hash) {
        return false;
      }
      return true;
    }
  }, {
    key: 'componentWillUpdate',
    value: function componentWillUpdate() {
      console.log("nav componentWillUpdate");
    }
  }, {
    key: 'componentDidUpdate',
    value: function componentDidUpdate() {
      console.log("nav componentDidUpdate");
      var hashDOM = _reactDom2.default.findDOMNode(this).querySelector('.hash');
      if (hashDOM == null) {
        return;
      }
      if (hashDOM.getAttribute('cid') == this.props.hlist[0].id) {
        document.getElementById('backHome').scrollIntoViewIfNeeded(false);
        return;
      }
      hashDOM.scrollIntoViewIfNeeded(false);
    }
  }, {
    key: 'click',
    value: function click(e) {
      var cid = e.target.getAttribute('cid');
      if (cid) {
        console.log('搜索结果', cid);
        global.hash = cid;
        global.isMouseClickNav = true;
        global.isMouseScrollArticle = false;
        this.props.setHash(cid);
      }
    }
  }, {
    key: 'wheel',
    value: function wheel(e) {
      var nav = _reactDom2.default.findDOMNode(this);
      if (e.deltaY > 0) {
        if (e.deltaY > 0 && nav.scrollHeight == nav.clientHeight + nav.scrollTop) {
          e.preventDefault();
        } else if (e.deltaY < 0 && nav.scrollTop == 0) {
          e.preventDefault();
        }
      }
    }

    //右键菜单事件,去除选中状态

  }, {
    key: 'contentMenu',
    value: function contentMenu(e) {
      e.preventDefault();
      document.getSelection().empty();
    }
  }, {
    key: 'render',
    value: function render() {
      var _this2 = this;

      console.log("nav render...");
      var max = this.props.hlist[0];
      this.props.hlist.map(function (h) {
        if (max.text.length < h.text.length) {
          max = h;
        }
      });
      // console.log(max, max.text.length);
      // let maxWidth = 0;
      // if (global.lang == 'zh_CN') {
      //   maxWidth = max.text.length * 16;
      // } else {
      //   maxWidth = max.text.length / 1.8;
      // }
      var maxWidth = max.text.length;
      var c = 0;
      if (global.lang === 'zh_CN') {
        if (maxWidth <= 6) {
          c = 3;
        } else {
          c = 1;
        }
        maxWidth *= 18;
      } else {
        if (maxWidth <= 20) {
          c = 2;
        }
        maxWidth *= 9;
      }
      return _react2.default.createElement(
        'div',
        {
          id: 'nav',
          lang: global.lang,
          onMouseDown: function onMouseDown(e) {
            return _this2.click(e);
          },
          onContextMenu: this.contentMenu,
          style: {
            width: 'calc(' + maxWidth + 'px + ' + c + 'rem'
          }
        },
        _react2.default.createElement(
          _scrollbar2.default,
          null,
          _react2.default.createElement(
            'div',
            {
              type: 'h2',
              id: 'backHome',
              className: 'h',
              onClick: function onClick() {
                return global.backHome();
              }
            },
            global.i18n['ToIndexPage']
          ),
          this.props.hlist.map(function (h) {
            return _react2.default.createElement(
              'div',
              {
                key: h.id,
                cid: h.id,
                type: h.type,
                className: _this2.props.hash == h.id ? 'h hash' : 'h',
                onMouseOver: function onMouseOver(e) {
                  return _this2.props.onNavOver(e);
                },
                onMouseOut: function onMouseOut(e) {
                  return _this2.props.onNavOut(e);
                },
                onMouseMove: function onMouseMove(e) {
                  return _this2.props.onNavMove(e);
                }
              },
              h.text
            );
          })
        )
      );
    }
  }]);

  return Nav;
}(_react.Component);

exports.default = Nav;

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./scrollbar.jsx":7,"react":73,"react-dom":42,"react-router-dom":58}],7:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

exports.default = function (props) {
  return _react2.default.createElement(
    _reactCustomScrollbars.Scrollbars,
    _extends({}, props, { className: 'scrollbar', autoHide: true, renderTrackHorizontal: renderScrollBarTrackHorizontal, autoHideTimeout: 800 }),
    props.children
  );
};

var _react = require('react');

var _react2 = _interopRequireDefault(_react);

var _reactCustomScrollbars = require('react-custom-scrollbars');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function renderScrollBarTrackHorizontal(props) {
  return _react2.default.createElement('span', null);
}

},{"react":73,"react-custom-scrollbars":34}],8:[function(require,module,exports){
(function (global){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _slicedToArray = function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"]) _i["return"](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError("Invalid attempt to destructure non-iterable instance"); } }; }();

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _react = require('react');

var _react2 = _interopRequireDefault(_react);

var _reactDom = require('react-dom');

var _reactDom2 = _interopRequireDefault(_reactDom);

var _propTypes = require('prop-types');

var _propTypes2 = _interopRequireDefault(_propTypes);

var _scrollbar = require('./scrollbar.jsx');

var _scrollbar2 = _interopRequireDefault(_scrollbar);

var _reactRouterDom = require('react-router-dom');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var Items = function (_Component) {
  _inherits(Items, _Component);

  function Items(props) {
    _classCallCheck(this, Items);

    var _this = _possibleConstructorReturn(this, (Items.__proto__ || Object.getPrototypeOf(Items)).call(this, props));

    _this.state = {
      title: '',
      logo: '',
      show: false
    };
    var path = props.file.slice(0, props.file.lastIndexOf('/') + 1);
    global.readFile(props.file, function (data) {
      var _data$substr$split = data.substr('# '.length, data.indexOf('\n')).split('|'),
          _data$substr$split2 = _slicedToArray(_data$substr$split, 2),
          title = _data$substr$split2[0],
          logo = _data$substr$split2[1];

      logo = '' + path + logo;
      _this.setState({ title: title, logo: logo, show: true });
    });
    return _this;
  }

  //转义特定字符


  _createClass(Items, [{
    key: 'escapeRegExp',
    value: function escapeRegExp(text) {
      return text.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, '\\$&');
    }
  }, {
    key: 'render',
    value: function render() {
      var _this2 = this;

      var resultList = [];

      //将关键字转义

      var keyTemp = this.props.keyword;
      if (this.props.keyword !== '%') {
        keyTemp = decodeURIComponent(this.props.keyword);
      }

      // let keyTemp = decodeURIComponent(this.props.keyword)
      var re = new RegExp(this.escapeRegExp(keyTemp), 'gi');

      var cTitle = _react2.default.createElement('span', {
        className: 'resulttitle',
        dangerouslySetInnerHTML: {
          __html: this.state.title.replace(re, "<span class='highlight'>$&</span>")
        }
      });

      var _loop = function _loop(i) {
        if (_this2.props.idList[i] == 'h0') {
          return 'continue';
        }

        var c = _react2.default.createElement(
          'div',
          { className: 'item', key: i, onClick: function onClick() {
              return global.open(_this2.props.file, _this2.props.idList[i], _this2.props.keyword);
            } },
          _react2.default.createElement('div', {
            className: 'itemTitle',
            dangerouslySetInnerHTML: {
              __html: _this2.props.titleList[i].replace(re, "<span class='highlight'>$&</span>")
            }
          }),
          _react2.default.createElement('div', {
            className: 'context',
            dangerouslySetInnerHTML: {
              __html: _this2.props.contentList[i]
              // __html:contentTrans
            }
          })
        );
        if (resultList.length < 5) {
          resultList.push(c);
        }
      };

      for (var i = 0; i < this.props.idList.length; i++) {
        var _ret = _loop(i);

        if (_ret === 'continue') continue;
      }
      var sresultnum;
      if (this.props.idList.length > 1) sresultnum = this.props.idList.length + global.i18n['ResultNumSuffixs'];else sresultnum = this.props.idList.length + global.i18n['ResultNumSuffix'];
      return this.state.show && _react2.default.createElement(
        'div',
        { className: 'items' },
        _react2.default.createElement(
          'div',
          { className: 'itemsTitle', onClick: function onClick() {
              return global.open(_this2.props.file, '', _this2.props.keyword);
            } },
          _react2.default.createElement('img', { src: this.state.logo }),
          cTitle,
          _react2.default.createElement(
            'span',
            { className: 'resultnum' },
            sresultnum
          )
        ),
        resultList
      );
    }
  }]);

  return Items;
}(_react.Component);

function Mismatch(props) {
  return _react2.default.createElement(
    'div',
    { id: 'mismatch' },
    _react2.default.createElement(
      'div',
      null,
      _react2.default.createElement(
        'div',
        { id: 'NoResult' },
        global.i18n['NoResult']
      )
    )
  );
}

var SearchPage = function (_Component2) {
  _inherits(SearchPage, _Component2);

  function SearchPage(props, context) {
    _classCallCheck(this, SearchPage);

    return _possibleConstructorReturn(this, (SearchPage.__proto__ || Object.getPrototypeOf(SearchPage)).call(this, props, context));

    // console.log('search constructor:',this.context);
  }

  _createClass(SearchPage, [{
    key: 'componentWillReceiveProps',
    value: function componentWillReceiveProps(nextProps) {
      // console.log("search componentWillReceiveProps..",this.context.searchResult);
      console.log("search componentWillReceiveProps..");
    }
  }, {
    key: 'componentDidUpdate',
    value: function componentDidUpdate() {
      _reactDom2.default.findDOMNode(this).querySelector('#search').focus();
    }
  }, {
    key: 'render',
    value: function render() {
      var _this4 = this;

      var c = null;
      if (this.context.mismatch) {
        c = _react2.default.createElement(Mismatch, { keyword: this.props.match.params.keyword });
      } else {
        c = this.context.searchResult.map(function (result) {
          return _react2.default.createElement(Items, {
            key: result.file,
            file: result.file,
            idList: result.idList,
            titleList: result.titleList,
            contentList: result.contentList,
            keyword: _this4.props.match.params.keyword
          });
        });
      }
      return _react2.default.createElement(
        _scrollbar2.default,
        null,
        _react2.default.createElement(
          'div',
          {
            id: 'search',
            tabIndex: '-1'
          },
          c
        )
      );
    }
  }]);

  return SearchPage;
}(_react.Component);

exports.default = SearchPage;


SearchPage.contextTypes = {
  searchResult: _propTypes2.default.array,
  mismatch: _propTypes2.default.bool
};

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./scrollbar.jsx":7,"prop-types":28,"react":73,"react-dom":42,"react-router-dom":58}],9:[function(require,module,exports){
/* The following list is defined in React's core */
var IS_UNITLESS = {
  animationIterationCount: true,
  boxFlex: true,
  boxFlexGroup: true,
  boxOrdinalGroup: true,
  columnCount: true,
  flex: true,
  flexGrow: true,
  flexPositive: true,
  flexShrink: true,
  flexNegative: true,
  flexOrder: true,
  gridRow: true,
  gridColumn: true,
  fontWeight: true,
  lineClamp: true,
  lineHeight: true,
  opacity: true,
  order: true,
  orphans: true,
  tabSize: true,
  widows: true,
  zIndex: true,
  zoom: true,

  // SVG-related properties
  fillOpacity: true,
  stopOpacity: true,
  strokeDashoffset: true,
  strokeOpacity: true,
  strokeWidth: true
};

module.exports = function(name, value) {
  if(typeof value === 'number' && !IS_UNITLESS[ name ]) {
    return value + 'px';
  } else {
    return value;
  }
};
},{}],10:[function(require,module,exports){
"use strict";

exports.__esModule = true;
exports.default = void 0;

function isElement(el) {
  return el != null && typeof el === 'object' && el.nodeType === 1;
}

function canOverflow(overflow, skipOverflowHiddenElements) {
  if (skipOverflowHiddenElements && overflow === 'hidden') {
    return false;
  }

  return overflow !== 'visible' && overflow !== 'clip';
}

function isScrollable(el, skipOverflowHiddenElements) {
  if (el.clientHeight < el.scrollHeight || el.clientWidth < el.scrollWidth) {
    var style = getComputedStyle(el, null);
    return canOverflow(style.overflowY, skipOverflowHiddenElements) || canOverflow(style.overflowX, skipOverflowHiddenElements);
  }

  return false;
}

function alignNearest(scrollingEdgeStart, scrollingEdgeEnd, scrollingSize, scrollingBorderStart, scrollingBorderEnd, elementEdgeStart, elementEdgeEnd, elementSize) {
  if (elementEdgeStart < scrollingEdgeStart && elementEdgeEnd > scrollingEdgeEnd || elementEdgeStart > scrollingEdgeStart && elementEdgeEnd < scrollingEdgeEnd) {
    return 0;
  }

  if (elementEdgeStart <= scrollingEdgeStart && elementSize <= scrollingSize || elementEdgeEnd >= scrollingEdgeEnd && elementSize >= scrollingSize) {
    return elementEdgeStart - scrollingEdgeStart - scrollingBorderStart;
  }

  if (elementEdgeEnd > scrollingEdgeEnd && elementSize < scrollingSize || elementEdgeStart < scrollingEdgeStart && elementSize > scrollingSize) {
    return elementEdgeEnd - scrollingEdgeEnd + scrollingBorderEnd;
  }

  return 0;
}

var _default = function _default(target, options) {
  var scrollMode = options.scrollMode,
      block = options.block,
      inline = options.inline,
      boundary = options.boundary,
      skipOverflowHiddenElements = options.skipOverflowHiddenElements;
  var checkBoundary = typeof boundary === 'function' ? boundary : function (node) {
    return node !== boundary;
  };

  if (!isElement(target)) {
    throw new TypeError('Invalid target');
  }

  var scrollingElement = document.scrollingElement || document.documentElement;
  var frames = [];
  var cursor = target;

  while (isElement(cursor) && checkBoundary(cursor)) {
    cursor = cursor.parentNode;

    if (cursor === scrollingElement) {
      frames.push(cursor);
      break;
    }

    if (cursor === document.body && isScrollable(cursor) && !isScrollable(document.documentElement)) {
      continue;
    }

    if (isScrollable(cursor, skipOverflowHiddenElements)) {
      frames.push(cursor);
    }
  }

  var viewportWidth = window.visualViewport ? visualViewport.width : innerWidth;
  var viewportHeight = window.visualViewport ? visualViewport.height : innerHeight;
  var viewportX = window.scrollX || pageXOffset;
  var viewportY = window.scrollY || pageYOffset;

  var _target$getBoundingCl = target.getBoundingClientRect(),
      targetHeight = _target$getBoundingCl.height,
      targetWidth = _target$getBoundingCl.width,
      targetTop = _target$getBoundingCl.top,
      targetRight = _target$getBoundingCl.right,
      targetBottom = _target$getBoundingCl.bottom,
      targetLeft = _target$getBoundingCl.left;

  var targetBlock = block === 'start' || block === 'nearest' ? targetTop : block === 'end' ? targetBottom : targetTop + targetHeight / 2;
  var targetInline = inline === 'center' ? targetLeft + targetWidth / 2 : inline === 'end' ? targetRight : targetLeft;
  var computations = [];

  for (var index = 0; index < frames.length; index++) {
    var frame = frames[index];

    var _frame$getBoundingCli = frame.getBoundingClientRect(),
        _height = _frame$getBoundingCli.height,
        _width = _frame$getBoundingCli.width,
        _top = _frame$getBoundingCli.top,
        right = _frame$getBoundingCli.right,
        bottom = _frame$getBoundingCli.bottom,
        _left = _frame$getBoundingCli.left;

    if (scrollMode === 'if-needed' && targetTop >= 0 && targetLeft >= 0 && targetBottom <= viewportHeight && targetRight <= viewportWidth && targetTop >= _top && targetBottom <= bottom && targetLeft >= _left && targetRight <= right) {
      return computations;
    }

    var frameStyle = getComputedStyle(frame);
    var borderLeft = parseInt(frameStyle.borderLeftWidth, 10);
    var borderTop = parseInt(frameStyle.borderTopWidth, 10);
    var borderRight = parseInt(frameStyle.borderRightWidth, 10);
    var borderBottom = parseInt(frameStyle.borderBottomWidth, 10);
    var blockScroll = 0;
    var inlineScroll = 0;
    var scrollbarWidth = 'offsetWidth' in frame ? frame.offsetWidth - frame.clientWidth - borderLeft - borderRight : 0;
    var scrollbarHeight = 'offsetHeight' in frame ? frame.offsetHeight - frame.clientHeight - borderTop - borderBottom : 0;

    if (scrollingElement === frame) {
      if (block === 'start') {
        blockScroll = targetBlock;
      } else if (block === 'end') {
        blockScroll = targetBlock - viewportHeight;
      } else if (block === 'nearest') {
        blockScroll = alignNearest(viewportY, viewportY + viewportHeight, viewportHeight, borderTop, borderBottom, viewportY + targetBlock, viewportY + targetBlock + targetHeight, targetHeight);
      } else {
        blockScroll = targetBlock - viewportHeight / 2;
      }

      if (inline === 'start') {
        inlineScroll = targetInline;
      } else if (inline === 'center') {
        inlineScroll = targetInline - viewportWidth / 2;
      } else if (inline === 'end') {
        inlineScroll = targetInline - viewportWidth;
      } else {
        inlineScroll = alignNearest(viewportX, viewportX + viewportWidth, viewportWidth, borderLeft, borderRight, viewportX + targetInline, viewportX + targetInline + targetWidth, targetWidth);
      }

      blockScroll = Math.max(0, blockScroll + viewportY);
      inlineScroll = Math.max(0, inlineScroll + viewportX);
    } else {
      if (block === 'start') {
        blockScroll = targetBlock - _top - borderTop;
      } else if (block === 'end') {
        blockScroll = targetBlock - bottom + borderBottom + scrollbarHeight;
      } else if (block === 'nearest') {
        blockScroll = alignNearest(_top, bottom, _height, borderTop, borderBottom + scrollbarHeight, targetBlock, targetBlock + targetHeight, targetHeight);
      } else {
        blockScroll = targetBlock - (_top + _height / 2) + scrollbarHeight / 2;
      }

      if (inline === 'start') {
        inlineScroll = targetInline - _left - borderLeft;
      } else if (inline === 'center') {
        inlineScroll = targetInline - (_left + _width / 2) + scrollbarWidth / 2;
      } else if (inline === 'end') {
        inlineScroll = targetInline - right + borderRight + scrollbarWidth;
      } else {
        inlineScroll = alignNearest(_left, right, _width, borderLeft, borderRight + scrollbarWidth, targetInline, targetInline + targetWidth, targetWidth);
      }

      var scrollLeft = frame.scrollLeft,
          scrollTop = frame.scrollTop;
      blockScroll = Math.max(0, Math.min(scrollTop + blockScroll, frame.scrollHeight - _height + scrollbarHeight));
      inlineScroll = Math.max(0, Math.min(scrollLeft + inlineScroll, frame.scrollWidth - _width + scrollbarWidth));
      targetBlock += scrollTop - blockScroll;
      targetInline += scrollLeft - inlineScroll;
    }

    computations.push({
      el: frame,
      top: blockScroll,
      left: inlineScroll
    });
  }

  return computations;
};

exports.default = _default;
module.exports = exports.default;
},{}],11:[function(require,module,exports){
var prefix = require('prefix-style')
var toCamelCase = require('to-camel-case')
var cache = { 'float': 'cssFloat' }
var addPxToStyle = require('add-px-to-style')

function style (element, property, value) {
  var camel = cache[property]
  if (typeof camel === 'undefined') {
    camel = detect(property)
  }

  // may be false if CSS prop is unsupported
  if (camel) {
    if (value === undefined) {
      return element.style[camel]
    }

    element.style[camel] = addPxToStyle(camel, value)
  }
}

function each (element, properties) {
  for (var k in properties) {
    if (properties.hasOwnProperty(k)) {
      style(element, k, properties[k])
    }
  }
}

function detect (cssProp) {
  var camel = toCamelCase(cssProp)
  var result = prefix(camel)
  cache[camel] = cache[cssProp] = cache[result] = result
  return result
}

function set () {
  if (arguments.length === 2) {
    if (typeof arguments[1] === 'string') {
      arguments[0].style.cssText = arguments[1]
    } else {
      each(arguments[0], arguments[1])
    }
  } else {
    style(arguments[0], arguments[1], arguments[2])
  }
}

module.exports = set
module.exports.set = set

module.exports.get = function (element, properties) {
  if (Array.isArray(properties)) {
    return properties.reduce(function (obj, prop) {
      obj[prop] = style(element, prop || '')
      return obj
    }, {})
  } else {
    return style(element, properties || '')
  }
}

},{"add-px-to-style":9,"prefix-style":23,"to-camel-case":85}],12:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

function _interopDefault (ex) { return (ex && (typeof ex === 'object') && 'default' in ex) ? ex['default'] : ex; }

var resolvePathname = _interopDefault(require('resolve-pathname'));
var valueEqual = _interopDefault(require('value-equal'));
var warning = _interopDefault(require('tiny-warning'));
var invariant = _interopDefault(require('tiny-invariant'));

function _extends() {
  _extends = Object.assign || function (target) {
    for (var i = 1; i < arguments.length; i++) {
      var source = arguments[i];

      for (var key in source) {
        if (Object.prototype.hasOwnProperty.call(source, key)) {
          target[key] = source[key];
        }
      }
    }

    return target;
  };

  return _extends.apply(this, arguments);
}

function addLeadingSlash(path) {
  return path.charAt(0) === '/' ? path : '/' + path;
}
function stripLeadingSlash(path) {
  return path.charAt(0) === '/' ? path.substr(1) : path;
}
function hasBasename(path, prefix) {
  return new RegExp('^' + prefix + '(\\/|\\?|#|$)', 'i').test(path);
}
function stripBasename(path, prefix) {
  return hasBasename(path, prefix) ? path.substr(prefix.length) : path;
}
function stripTrailingSlash(path) {
  return path.charAt(path.length - 1) === '/' ? path.slice(0, -1) : path;
}
function parsePath(path) {
  var pathname = path || '/';
  var search = '';
  var hash = '';
  var hashIndex = pathname.indexOf('#');

  if (hashIndex !== -1) {
    hash = pathname.substr(hashIndex);
    pathname = pathname.substr(0, hashIndex);
  }

  var searchIndex = pathname.indexOf('?');

  if (searchIndex !== -1) {
    search = pathname.substr(searchIndex);
    pathname = pathname.substr(0, searchIndex);
  }

  return {
    pathname: pathname,
    search: search === '?' ? '' : search,
    hash: hash === '#' ? '' : hash
  };
}
function createPath(location) {
  var pathname = location.pathname,
      search = location.search,
      hash = location.hash;
  var path = pathname || '/';
  if (search && search !== '?') path += search.charAt(0) === '?' ? search : "?" + search;
  if (hash && hash !== '#') path += hash.charAt(0) === '#' ? hash : "#" + hash;
  return path;
}

function createLocation(path, state, key, currentLocation) {
  var location;

  if (typeof path === 'string') {
    // Two-arg form: push(path, state)
    location = parsePath(path);
    location.state = state;
  } else {
    // One-arg form: push(location)
    location = _extends({}, path);
    if (location.pathname === undefined) location.pathname = '';

    if (location.search) {
      if (location.search.charAt(0) !== '?') location.search = '?' + location.search;
    } else {
      location.search = '';
    }

    if (location.hash) {
      if (location.hash.charAt(0) !== '#') location.hash = '#' + location.hash;
    } else {
      location.hash = '';
    }

    if (state !== undefined && location.state === undefined) location.state = state;
  }

  try {
    location.pathname = decodeURI(location.pathname);
  } catch (e) {
    if (e instanceof URIError) {
      throw new URIError('Pathname "' + location.pathname + '" could not be decoded. ' + 'This is likely caused by an invalid percent-encoding.');
    } else {
      throw e;
    }
  }

  if (key) location.key = key;

  if (currentLocation) {
    // Resolve incomplete/relative pathname relative to current location.
    if (!location.pathname) {
      location.pathname = currentLocation.pathname;
    } else if (location.pathname.charAt(0) !== '/') {
      location.pathname = resolvePathname(location.pathname, currentLocation.pathname);
    }
  } else {
    // When there is no prior location and pathname is empty, set it to /
    if (!location.pathname) {
      location.pathname = '/';
    }
  }

  return location;
}
function locationsAreEqual(a, b) {
  return a.pathname === b.pathname && a.search === b.search && a.hash === b.hash && a.key === b.key && valueEqual(a.state, b.state);
}

function createTransitionManager() {
  var prompt = null;

  function setPrompt(nextPrompt) {
    warning(prompt == null, 'A history supports only one prompt at a time');
    prompt = nextPrompt;
    return function () {
      if (prompt === nextPrompt) prompt = null;
    };
  }

  function confirmTransitionTo(location, action, getUserConfirmation, callback) {
    // TODO: If another transition starts while we're still confirming
    // the previous one, we may end up in a weird state. Figure out the
    // best way to handle this.
    if (prompt != null) {
      var result = typeof prompt === 'function' ? prompt(location, action) : prompt;

      if (typeof result === 'string') {
        if (typeof getUserConfirmation === 'function') {
          getUserConfirmation(result, callback);
        } else {
          warning(false, 'A history needs a getUserConfirmation function in order to use a prompt message');
          callback(true);
        }
      } else {
        // Return false from a transition hook to cancel the transition.
        callback(result !== false);
      }
    } else {
      callback(true);
    }
  }

  var listeners = [];

  function appendListener(fn) {
    var isActive = true;

    function listener() {
      if (isActive) fn.apply(void 0, arguments);
    }

    listeners.push(listener);
    return function () {
      isActive = false;
      listeners = listeners.filter(function (item) {
        return item !== listener;
      });
    };
  }

  function notifyListeners() {
    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }

    listeners.forEach(function (listener) {
      return listener.apply(void 0, args);
    });
  }

  return {
    setPrompt: setPrompt,
    confirmTransitionTo: confirmTransitionTo,
    appendListener: appendListener,
    notifyListeners: notifyListeners
  };
}

var canUseDOM = !!(typeof window !== 'undefined' && window.document && window.document.createElement);
function getConfirmation(message, callback) {
  callback(window.confirm(message)); // eslint-disable-line no-alert
}
/**
 * Returns true if the HTML5 history API is supported. Taken from Modernizr.
 *
 * https://github.com/Modernizr/Modernizr/blob/master/LICENSE
 * https://github.com/Modernizr/Modernizr/blob/master/feature-detects/history.js
 * changed to avoid false negatives for Windows Phones: https://github.com/reactjs/react-router/issues/586
 */

function supportsHistory() {
  var ua = window.navigator.userAgent;
  if ((ua.indexOf('Android 2.') !== -1 || ua.indexOf('Android 4.0') !== -1) && ua.indexOf('Mobile Safari') !== -1 && ua.indexOf('Chrome') === -1 && ua.indexOf('Windows Phone') === -1) return false;
  return window.history && 'pushState' in window.history;
}
/**
 * Returns true if browser fires popstate on hash change.
 * IE10 and IE11 do not.
 */

function supportsPopStateOnHashChange() {
  return window.navigator.userAgent.indexOf('Trident') === -1;
}
/**
 * Returns false if using go(n) with hash history causes a full page reload.
 */

function supportsGoWithoutReloadUsingHash() {
  return window.navigator.userAgent.indexOf('Firefox') === -1;
}
/**
 * Returns true if a given popstate event is an extraneous WebKit event.
 * Accounts for the fact that Chrome on iOS fires real popstate events
 * containing undefined state when pressing the back button.
 */

function isExtraneousPopstateEvent(event) {
  event.state === undefined && navigator.userAgent.indexOf('CriOS') === -1;
}

var PopStateEvent = 'popstate';
var HashChangeEvent = 'hashchange';

function getHistoryState() {
  try {
    return window.history.state || {};
  } catch (e) {
    // IE 11 sometimes throws when accessing window.history.state
    // See https://github.com/ReactTraining/history/pull/289
    return {};
  }
}
/**
 * Creates a history object that uses the HTML5 history API including
 * pushState, replaceState, and the popstate event.
 */


function createBrowserHistory(props) {
  if (props === void 0) {
    props = {};
  }

  !canUseDOM ? invariant(false, 'Browser history needs a DOM') : void 0;
  var globalHistory = window.history;
  var canUseHistory = supportsHistory();
  var needsHashChangeListener = !supportsPopStateOnHashChange();
  var _props = props,
      _props$forceRefresh = _props.forceRefresh,
      forceRefresh = _props$forceRefresh === void 0 ? false : _props$forceRefresh,
      _props$getUserConfirm = _props.getUserConfirmation,
      getUserConfirmation = _props$getUserConfirm === void 0 ? getConfirmation : _props$getUserConfirm,
      _props$keyLength = _props.keyLength,
      keyLength = _props$keyLength === void 0 ? 6 : _props$keyLength;
  var basename = props.basename ? stripTrailingSlash(addLeadingSlash(props.basename)) : '';

  function getDOMLocation(historyState) {
    var _ref = historyState || {},
        key = _ref.key,
        state = _ref.state;

    var _window$location = window.location,
        pathname = _window$location.pathname,
        search = _window$location.search,
        hash = _window$location.hash;
    var path = pathname + search + hash;
    warning(!basename || hasBasename(path, basename), 'You are attempting to use a basename on a page whose URL path does not begin ' + 'with the basename. Expected path "' + path + '" to begin with "' + basename + '".');
    if (basename) path = stripBasename(path, basename);
    return createLocation(path, state, key);
  }

  function createKey() {
    return Math.random().toString(36).substr(2, keyLength);
  }

  var transitionManager = createTransitionManager();

  function setState(nextState) {
    _extends(history, nextState);

    history.length = globalHistory.length;
    transitionManager.notifyListeners(history.location, history.action);
  }

  function handlePopState(event) {
    // Ignore extraneous popstate events in WebKit.
    if (isExtraneousPopstateEvent(event)) return;
    handlePop(getDOMLocation(event.state));
  }

  function handleHashChange() {
    handlePop(getDOMLocation(getHistoryState()));
  }

  var forceNextPop = false;

  function handlePop(location) {
    if (forceNextPop) {
      forceNextPop = false;
      setState();
    } else {
      var action = 'POP';
      transitionManager.confirmTransitionTo(location, action, getUserConfirmation, function (ok) {
        if (ok) {
          setState({
            action: action,
            location: location
          });
        } else {
          revertPop(location);
        }
      });
    }
  }

  function revertPop(fromLocation) {
    var toLocation = history.location; // TODO: We could probably make this more reliable by
    // keeping a list of keys we've seen in sessionStorage.
    // Instead, we just default to 0 for keys we don't know.

    var toIndex = allKeys.indexOf(toLocation.key);
    if (toIndex === -1) toIndex = 0;
    var fromIndex = allKeys.indexOf(fromLocation.key);
    if (fromIndex === -1) fromIndex = 0;
    var delta = toIndex - fromIndex;

    if (delta) {
      forceNextPop = true;
      go(delta);
    }
  }

  var initialLocation = getDOMLocation(getHistoryState());
  var allKeys = [initialLocation.key]; // Public interface

  function createHref(location) {
    return basename + createPath(location);
  }

  function push(path, state) {
    warning(!(typeof path === 'object' && path.state !== undefined && state !== undefined), 'You should avoid providing a 2nd state argument to push when the 1st ' + 'argument is a location-like object that already has state; it is ignored');
    var action = 'PUSH';
    var location = createLocation(path, state, createKey(), history.location);
    transitionManager.confirmTransitionTo(location, action, getUserConfirmation, function (ok) {
      if (!ok) return;
      var href = createHref(location);
      var key = location.key,
          state = location.state;

      if (canUseHistory) {
        globalHistory.pushState({
          key: key,
          state: state
        }, null, href);

        if (forceRefresh) {
          window.location.href = href;
        } else {
          var prevIndex = allKeys.indexOf(history.location.key);
          var nextKeys = allKeys.slice(0, prevIndex === -1 ? 0 : prevIndex + 1);
          nextKeys.push(location.key);
          allKeys = nextKeys;
          setState({
            action: action,
            location: location
          });
        }
      } else {
        warning(state === undefined, 'Browser history cannot push state in browsers that do not support HTML5 history');
        window.location.href = href;
      }
    });
  }

  function replace(path, state) {
    warning(!(typeof path === 'object' && path.state !== undefined && state !== undefined), 'You should avoid providing a 2nd state argument to replace when the 1st ' + 'argument is a location-like object that already has state; it is ignored');
    var action = 'REPLACE';
    var location = createLocation(path, state, createKey(), history.location);
    transitionManager.confirmTransitionTo(location, action, getUserConfirmation, function (ok) {
      if (!ok) return;
      var href = createHref(location);
      var key = location.key,
          state = location.state;

      if (canUseHistory) {
        globalHistory.replaceState({
          key: key,
          state: state
        }, null, href);

        if (forceRefresh) {
          window.location.replace(href);
        } else {
          var prevIndex = allKeys.indexOf(history.location.key);
          if (prevIndex !== -1) allKeys[prevIndex] = location.key;
          setState({
            action: action,
            location: location
          });
        }
      } else {
        warning(state === undefined, 'Browser history cannot replace state in browsers that do not support HTML5 history');
        window.location.replace(href);
      }
    });
  }

  function go(n) {
    globalHistory.go(n);
  }

  function goBack() {
    go(-1);
  }

  function goForward() {
    go(1);
  }

  var listenerCount = 0;

  function checkDOMListeners(delta) {
    listenerCount += delta;

    if (listenerCount === 1 && delta === 1) {
      window.addEventListener(PopStateEvent, handlePopState);
      if (needsHashChangeListener) window.addEventListener(HashChangeEvent, handleHashChange);
    } else if (listenerCount === 0) {
      window.removeEventListener(PopStateEvent, handlePopState);
      if (needsHashChangeListener) window.removeEventListener(HashChangeEvent, handleHashChange);
    }
  }

  var isBlocked = false;

  function block(prompt) {
    if (prompt === void 0) {
      prompt = false;
    }

    var unblock = transitionManager.setPrompt(prompt);

    if (!isBlocked) {
      checkDOMListeners(1);
      isBlocked = true;
    }

    return function () {
      if (isBlocked) {
        isBlocked = false;
        checkDOMListeners(-1);
      }

      return unblock();
    };
  }

  function listen(listener) {
    var unlisten = transitionManager.appendListener(listener);
    checkDOMListeners(1);
    return function () {
      checkDOMListeners(-1);
      unlisten();
    };
  }

  var history = {
    length: globalHistory.length,
    action: 'POP',
    location: initialLocation,
    createHref: createHref,
    push: push,
    replace: replace,
    go: go,
    goBack: goBack,
    goForward: goForward,
    block: block,
    listen: listen
  };
  return history;
}

var HashChangeEvent$1 = 'hashchange';
var HashPathCoders = {
  hashbang: {
    encodePath: function encodePath(path) {
      return path.charAt(0) === '!' ? path : '!/' + stripLeadingSlash(path);
    },
    decodePath: function decodePath(path) {
      return path.charAt(0) === '!' ? path.substr(1) : path;
    }
  },
  noslash: {
    encodePath: stripLeadingSlash,
    decodePath: addLeadingSlash
  },
  slash: {
    encodePath: addLeadingSlash,
    decodePath: addLeadingSlash
  }
};

function getHashPath() {
  // We can't use window.location.hash here because it's not
  // consistent across browsers - Firefox will pre-decode it!
  var href = window.location.href;
  var hashIndex = href.indexOf('#');
  return hashIndex === -1 ? '' : href.substring(hashIndex + 1);
}

function pushHashPath(path) {
  window.location.hash = path;
}

function replaceHashPath(path) {
  var hashIndex = window.location.href.indexOf('#');
  window.location.replace(window.location.href.slice(0, hashIndex >= 0 ? hashIndex : 0) + '#' + path);
}

function createHashHistory(props) {
  if (props === void 0) {
    props = {};
  }

  !canUseDOM ? invariant(false, 'Hash history needs a DOM') : void 0;
  var globalHistory = window.history;
  var canGoWithoutReload = supportsGoWithoutReloadUsingHash();
  var _props = props,
      _props$getUserConfirm = _props.getUserConfirmation,
      getUserConfirmation = _props$getUserConfirm === void 0 ? getConfirmation : _props$getUserConfirm,
      _props$hashType = _props.hashType,
      hashType = _props$hashType === void 0 ? 'slash' : _props$hashType;
  var basename = props.basename ? stripTrailingSlash(addLeadingSlash(props.basename)) : '';
  var _HashPathCoders$hashT = HashPathCoders[hashType],
      encodePath = _HashPathCoders$hashT.encodePath,
      decodePath = _HashPathCoders$hashT.decodePath;

  function getDOMLocation() {
    var path = decodePath(getHashPath());
    warning(!basename || hasBasename(path, basename), 'You are attempting to use a basename on a page whose URL path does not begin ' + 'with the basename. Expected path "' + path + '" to begin with "' + basename + '".');
    if (basename) path = stripBasename(path, basename);
    return createLocation(path);
  }

  var transitionManager = createTransitionManager();

  function setState(nextState) {
    _extends(history, nextState);

    history.length = globalHistory.length;
    transitionManager.notifyListeners(history.location, history.action);
  }

  var forceNextPop = false;
  var ignorePath = null;

  function handleHashChange() {
    var path = getHashPath();
    var encodedPath = encodePath(path);

    if (path !== encodedPath) {
      // Ensure we always have a properly-encoded hash.
      replaceHashPath(encodedPath);
    } else {
      var location = getDOMLocation();
      var prevLocation = history.location;
      if (!forceNextPop && locationsAreEqual(prevLocation, location)) return; // A hashchange doesn't always == location change.

      if (ignorePath === createPath(location)) return; // Ignore this change; we already setState in push/replace.

      ignorePath = null;
      handlePop(location);
    }
  }

  function handlePop(location) {
    if (forceNextPop) {
      forceNextPop = false;
      setState();
    } else {
      var action = 'POP';
      transitionManager.confirmTransitionTo(location, action, getUserConfirmation, function (ok) {
        if (ok) {
          setState({
            action: action,
            location: location
          });
        } else {
          revertPop(location);
        }
      });
    }
  }

  function revertPop(fromLocation) {
    var toLocation = history.location; // TODO: We could probably make this more reliable by
    // keeping a list of paths we've seen in sessionStorage.
    // Instead, we just default to 0 for paths we don't know.

    var toIndex = allPaths.lastIndexOf(createPath(toLocation));
    if (toIndex === -1) toIndex = 0;
    var fromIndex = allPaths.lastIndexOf(createPath(fromLocation));
    if (fromIndex === -1) fromIndex = 0;
    var delta = toIndex - fromIndex;

    if (delta) {
      forceNextPop = true;
      go(delta);
    }
  } // Ensure the hash is encoded properly before doing anything else.


  var path = getHashPath();
  var encodedPath = encodePath(path);
  if (path !== encodedPath) replaceHashPath(encodedPath);
  var initialLocation = getDOMLocation();
  var allPaths = [createPath(initialLocation)]; // Public interface

  function createHref(location) {
    return '#' + encodePath(basename + createPath(location));
  }

  function push(path, state) {
    warning(state === undefined, 'Hash history cannot push state; it is ignored');
    var action = 'PUSH';
    var location = createLocation(path, undefined, undefined, history.location);
    transitionManager.confirmTransitionTo(location, action, getUserConfirmation, function (ok) {
      if (!ok) return;
      var path = createPath(location);
      var encodedPath = encodePath(basename + path);
      var hashChanged = getHashPath() !== encodedPath;

      if (hashChanged) {
        // We cannot tell if a hashchange was caused by a PUSH, so we'd
        // rather setState here and ignore the hashchange. The caveat here
        // is that other hash histories in the page will consider it a POP.
        ignorePath = path;
        pushHashPath(encodedPath);
        var prevIndex = allPaths.lastIndexOf(createPath(history.location));
        var nextPaths = allPaths.slice(0, prevIndex === -1 ? 0 : prevIndex + 1);
        nextPaths.push(path);
        allPaths = nextPaths;
        setState({
          action: action,
          location: location
        });
      } else {
        warning(false, 'Hash history cannot PUSH the same path; a new entry will not be added to the history stack');
        setState();
      }
    });
  }

  function replace(path, state) {
    warning(state === undefined, 'Hash history cannot replace state; it is ignored');
    var action = 'REPLACE';
    var location = createLocation(path, undefined, undefined, history.location);
    transitionManager.confirmTransitionTo(location, action, getUserConfirmation, function (ok) {
      if (!ok) return;
      var path = createPath(location);
      var encodedPath = encodePath(basename + path);
      var hashChanged = getHashPath() !== encodedPath;

      if (hashChanged) {
        // We cannot tell if a hashchange was caused by a REPLACE, so we'd
        // rather setState here and ignore the hashchange. The caveat here
        // is that other hash histories in the page will consider it a POP.
        ignorePath = path;
        replaceHashPath(encodedPath);
      }

      var prevIndex = allPaths.indexOf(createPath(history.location));
      if (prevIndex !== -1) allPaths[prevIndex] = path;
      setState({
        action: action,
        location: location
      });
    });
  }

  function go(n) {
    warning(canGoWithoutReload, 'Hash history go(n) causes a full page reload in this browser');
    globalHistory.go(n);
  }

  function goBack() {
    go(-1);
  }

  function goForward() {
    go(1);
  }

  var listenerCount = 0;

  function checkDOMListeners(delta) {
    listenerCount += delta;

    if (listenerCount === 1 && delta === 1) {
      window.addEventListener(HashChangeEvent$1, handleHashChange);
    } else if (listenerCount === 0) {
      window.removeEventListener(HashChangeEvent$1, handleHashChange);
    }
  }

  var isBlocked = false;

  function block(prompt) {
    if (prompt === void 0) {
      prompt = false;
    }

    var unblock = transitionManager.setPrompt(prompt);

    if (!isBlocked) {
      checkDOMListeners(1);
      isBlocked = true;
    }

    return function () {
      if (isBlocked) {
        isBlocked = false;
        checkDOMListeners(-1);
      }

      return unblock();
    };
  }

  function listen(listener) {
    var unlisten = transitionManager.appendListener(listener);
    checkDOMListeners(1);
    return function () {
      checkDOMListeners(-1);
      unlisten();
    };
  }

  var history = {
    length: globalHistory.length,
    action: 'POP',
    location: initialLocation,
    createHref: createHref,
    push: push,
    replace: replace,
    go: go,
    goBack: goBack,
    goForward: goForward,
    block: block,
    listen: listen
  };
  return history;
}

function clamp(n, lowerBound, upperBound) {
  return Math.min(Math.max(n, lowerBound), upperBound);
}
/**
 * Creates a history object that stores locations in memory.
 */


function createMemoryHistory(props) {
  if (props === void 0) {
    props = {};
  }

  var _props = props,
      getUserConfirmation = _props.getUserConfirmation,
      _props$initialEntries = _props.initialEntries,
      initialEntries = _props$initialEntries === void 0 ? ['/'] : _props$initialEntries,
      _props$initialIndex = _props.initialIndex,
      initialIndex = _props$initialIndex === void 0 ? 0 : _props$initialIndex,
      _props$keyLength = _props.keyLength,
      keyLength = _props$keyLength === void 0 ? 6 : _props$keyLength;
  var transitionManager = createTransitionManager();

  function setState(nextState) {
    _extends(history, nextState);

    history.length = history.entries.length;
    transitionManager.notifyListeners(history.location, history.action);
  }

  function createKey() {
    return Math.random().toString(36).substr(2, keyLength);
  }

  var index = clamp(initialIndex, 0, initialEntries.length - 1);
  var entries = initialEntries.map(function (entry) {
    return typeof entry === 'string' ? createLocation(entry, undefined, createKey()) : createLocation(entry, undefined, entry.key || createKey());
  }); // Public interface

  var createHref = createPath;

  function push(path, state) {
    warning(!(typeof path === 'object' && path.state !== undefined && state !== undefined), 'You should avoid providing a 2nd state argument to push when the 1st ' + 'argument is a location-like object that already has state; it is ignored');
    var action = 'PUSH';
    var location = createLocation(path, state, createKey(), history.location);
    transitionManager.confirmTransitionTo(location, action, getUserConfirmation, function (ok) {
      if (!ok) return;
      var prevIndex = history.index;
      var nextIndex = prevIndex + 1;
      var nextEntries = history.entries.slice(0);

      if (nextEntries.length > nextIndex) {
        nextEntries.splice(nextIndex, nextEntries.length - nextIndex, location);
      } else {
        nextEntries.push(location);
      }

      setState({
        action: action,
        location: location,
        index: nextIndex,
        entries: nextEntries
      });
    });
  }

  function replace(path, state) {
    warning(!(typeof path === 'object' && path.state !== undefined && state !== undefined), 'You should avoid providing a 2nd state argument to replace when the 1st ' + 'argument is a location-like object that already has state; it is ignored');
    var action = 'REPLACE';
    var location = createLocation(path, state, createKey(), history.location);
    transitionManager.confirmTransitionTo(location, action, getUserConfirmation, function (ok) {
      if (!ok) return;
      history.entries[history.index] = location;
      setState({
        action: action,
        location: location
      });
    });
  }

  function go(n) {
    var nextIndex = clamp(history.index + n, 0, history.entries.length - 1);
    var action = 'POP';
    var location = history.entries[nextIndex];
    transitionManager.confirmTransitionTo(location, action, getUserConfirmation, function (ok) {
      if (ok) {
        setState({
          action: action,
          location: location,
          index: nextIndex
        });
      } else {
        // Mimic the behavior of DOM histories by
        // causing a render after a cancelled POP.
        setState();
      }
    });
  }

  function goBack() {
    go(-1);
  }

  function goForward() {
    go(1);
  }

  function canGo(n) {
    var nextIndex = history.index + n;
    return nextIndex >= 0 && nextIndex < history.entries.length;
  }

  function block(prompt) {
    if (prompt === void 0) {
      prompt = false;
    }

    return transitionManager.setPrompt(prompt);
  }

  function listen(listener) {
    return transitionManager.appendListener(listener);
  }

  var history = {
    length: entries.length,
    action: 'POP',
    location: entries[index],
    index: index,
    entries: entries,
    createHref: createHref,
    push: push,
    replace: replace,
    go: go,
    goBack: goBack,
    goForward: goForward,
    canGo: canGo,
    block: block,
    listen: listen
  };
  return history;
}

exports.createBrowserHistory = createBrowserHistory;
exports.createHashHistory = createHashHistory;
exports.createMemoryHistory = createMemoryHistory;
exports.createLocation = createLocation;
exports.locationsAreEqual = locationsAreEqual;
exports.parsePath = parsePath;
exports.createPath = createPath;

},{"resolve-pathname":74,"tiny-invariant":83,"tiny-warning":84,"value-equal":88}],13:[function(require,module,exports){
"use strict";function _interopDefault(n){return n&&"object"==typeof n&&"default"in n?n.default:n}Object.defineProperty(exports,"__esModule",{value:!0});var resolvePathname=_interopDefault(require("resolve-pathname")),valueEqual=_interopDefault(require("value-equal"));require("tiny-warning");var invariant=_interopDefault(require("tiny-invariant"));function _extends(){return(_extends=Object.assign||function(n){for(var t=1;t<arguments.length;t++){var e=arguments[t];for(var a in e)Object.prototype.hasOwnProperty.call(e,a)&&(n[a]=e[a])}return n}).apply(this,arguments)}function addLeadingSlash(n){return"/"===n.charAt(0)?n:"/"+n}function stripLeadingSlash(n){return"/"===n.charAt(0)?n.substr(1):n}function hasBasename(n,t){return new RegExp("^"+t+"(\\/|\\?|#|$)","i").test(n)}function stripBasename(n,t){return hasBasename(n,t)?n.substr(t.length):n}function stripTrailingSlash(n){return"/"===n.charAt(n.length-1)?n.slice(0,-1):n}function parsePath(n){var t=n||"/",e="",a="",o=t.indexOf("#");-1!==o&&(a=t.substr(o),t=t.substr(0,o));var r=t.indexOf("?");return-1!==r&&(e=t.substr(r),t=t.substr(0,r)),{pathname:t,search:"?"===e?"":e,hash:"#"===a?"":a}}function createPath(n){var t=n.pathname,e=n.search,a=n.hash,o=t||"/";return e&&"?"!==e&&(o+="?"===e.charAt(0)?e:"?"+e),a&&"#"!==a&&(o+="#"===a.charAt(0)?a:"#"+a),o}function createLocation(n,t,e,a){var o;"string"==typeof n?(o=parsePath(n)).state=t:(void 0===(o=_extends({},n)).pathname&&(o.pathname=""),o.search?"?"!==o.search.charAt(0)&&(o.search="?"+o.search):o.search="",o.hash?"#"!==o.hash.charAt(0)&&(o.hash="#"+o.hash):o.hash="",void 0!==t&&void 0===o.state&&(o.state=t));try{o.pathname=decodeURI(o.pathname)}catch(n){throw n instanceof URIError?new URIError('Pathname "'+o.pathname+'" could not be decoded. This is likely caused by an invalid percent-encoding.'):n}return e&&(o.key=e),a?o.pathname?"/"!==o.pathname.charAt(0)&&(o.pathname=resolvePathname(o.pathname,a.pathname)):o.pathname=a.pathname:o.pathname||(o.pathname="/"),o}function locationsAreEqual(n,t){return n.pathname===t.pathname&&n.search===t.search&&n.hash===t.hash&&n.key===t.key&&valueEqual(n.state,t.state)}function createTransitionManager(){var r=null;var a=[];return{setPrompt:function(n){return r=n,function(){r===n&&(r=null)}},confirmTransitionTo:function(n,t,e,a){if(null!=r){var o="function"==typeof r?r(n,t):r;"string"==typeof o?"function"==typeof e?e(o,a):a(!0):a(!1!==o)}else a(!0)},appendListener:function(n){var t=!0;function e(){t&&n.apply(void 0,arguments)}return a.push(e),function(){t=!1,a=a.filter(function(n){return n!==e})}},notifyListeners:function(){for(var n=arguments.length,t=new Array(n),e=0;e<n;e++)t[e]=arguments[e];a.forEach(function(n){return n.apply(void 0,t)})}}}var canUseDOM=!("undefined"==typeof window||!window.document||!window.document.createElement);function getConfirmation(n,t){t(window.confirm(n))}function supportsHistory(){var n=window.navigator.userAgent;return(-1===n.indexOf("Android 2.")&&-1===n.indexOf("Android 4.0")||-1===n.indexOf("Mobile Safari")||-1!==n.indexOf("Chrome")||-1!==n.indexOf("Windows Phone"))&&(window.history&&"pushState"in window.history)}function supportsPopStateOnHashChange(){return-1===window.navigator.userAgent.indexOf("Trident")}function supportsGoWithoutReloadUsingHash(){return-1===window.navigator.userAgent.indexOf("Firefox")}function isExtraneousPopstateEvent(n){void 0===n.state&&navigator.userAgent.indexOf("CriOS")}var PopStateEvent="popstate",HashChangeEvent="hashchange";function getHistoryState(){try{return window.history.state||{}}catch(n){return{}}}function createBrowserHistory(n){void 0===n&&(n={}),canUseDOM||invariant(!1);var c=window.history,s=supportsHistory(),t=!supportsPopStateOnHashChange(),e=n,a=e.forceRefresh,h=void 0!==a&&a,o=e.getUserConfirmation,u=void 0===o?getConfirmation:o,r=e.keyLength,i=void 0===r?6:r,f=n.basename?stripTrailingSlash(addLeadingSlash(n.basename)):"";function l(n){var t=n||{},e=t.key,a=t.state,o=window.location,r=o.pathname+o.search+o.hash;return f&&(r=stripBasename(r,f)),createLocation(r,a,e)}function d(){return Math.random().toString(36).substr(2,i)}var v=createTransitionManager();function p(n){_extends(T,n),T.length=c.length,v.notifyListeners(T.location,T.action)}function g(n){isExtraneousPopstateEvent(n)||w(l(n.state))}function P(){w(l(getHistoryState()))}var m=!1;function w(t){if(m)m=!1,p();else{v.confirmTransitionTo(t,"POP",u,function(n){n?p({action:"POP",location:t}):function(n){var t=T.location,e=H.indexOf(t.key);-1===e&&(e=0);var a=H.indexOf(n.key);-1===a&&(a=0);var o=e-a;o&&(m=!0,L(o))}(t)})}}var y=l(getHistoryState()),H=[y.key];function x(n){return f+createPath(n)}function L(n){c.go(n)}var O=0;function E(n){1===(O+=n)&&1===n?(window.addEventListener(PopStateEvent,g),t&&window.addEventListener(HashChangeEvent,P)):0===O&&(window.removeEventListener(PopStateEvent,g),t&&window.removeEventListener(HashChangeEvent,P))}var S=!1;var T={length:c.length,action:"POP",location:y,createHref:x,push:function(n,t){var i=createLocation(n,t,d(),T.location);v.confirmTransitionTo(i,"PUSH",u,function(n){if(n){var t=x(i),e=i.key,a=i.state;if(s)if(c.pushState({key:e,state:a},null,t),h)window.location.href=t;else{var o=H.indexOf(T.location.key),r=H.slice(0,-1===o?0:o+1);r.push(i.key),H=r,p({action:"PUSH",location:i})}else window.location.href=t}})},replace:function(n,t){var r="REPLACE",i=createLocation(n,t,d(),T.location);v.confirmTransitionTo(i,r,u,function(n){if(n){var t=x(i),e=i.key,a=i.state;if(s)if(c.replaceState({key:e,state:a},null,t),h)window.location.replace(t);else{var o=H.indexOf(T.location.key);-1!==o&&(H[o]=i.key),p({action:r,location:i})}else window.location.replace(t)}})},go:L,goBack:function(){L(-1)},goForward:function(){L(1)},block:function(n){void 0===n&&(n=!1);var t=v.setPrompt(n);return S||(E(1),S=!0),function(){return S&&(S=!1,E(-1)),t()}},listen:function(n){var t=v.appendListener(n);return E(1),function(){E(-1),t()}}};return T}var HashChangeEvent$1="hashchange",HashPathCoders={hashbang:{encodePath:function(n){return"!"===n.charAt(0)?n:"!/"+stripLeadingSlash(n)},decodePath:function(n){return"!"===n.charAt(0)?n.substr(1):n}},noslash:{encodePath:stripLeadingSlash,decodePath:addLeadingSlash},slash:{encodePath:addLeadingSlash,decodePath:addLeadingSlash}};function getHashPath(){var n=window.location.href,t=n.indexOf("#");return-1===t?"":n.substring(t+1)}function pushHashPath(n){window.location.hash=n}function replaceHashPath(n){var t=window.location.href.indexOf("#");window.location.replace(window.location.href.slice(0,0<=t?t:0)+"#"+n)}function createHashHistory(n){void 0===n&&(n={}),canUseDOM||invariant(!1);var t=window.history,e=(supportsGoWithoutReloadUsingHash(),n),a=e.getUserConfirmation,i=void 0===a?getConfirmation:a,o=e.hashType,r=void 0===o?"slash":o,c=n.basename?stripTrailingSlash(addLeadingSlash(n.basename)):"",s=HashPathCoders[r],h=s.encodePath,u=s.decodePath;function f(){var n=u(getHashPath());return c&&(n=stripBasename(n,c)),createLocation(n)}var l=createTransitionManager();function d(n){_extends(E,n),E.length=t.length,l.notifyListeners(E.location,E.action)}var v=!1,p=null;function g(){var n=getHashPath(),t=h(n);if(n!==t)replaceHashPath(t);else{var e=f(),a=E.location;if(!v&&locationsAreEqual(a,e))return;if(p===createPath(e))return;p=null,function(t){if(v)v=!1,d();else{l.confirmTransitionTo(t,"POP",i,function(n){n?d({action:"POP",location:t}):function(n){var t=E.location,e=y.lastIndexOf(createPath(t));-1===e&&(e=0);var a=y.lastIndexOf(createPath(n));-1===a&&(a=0);var o=e-a;o&&(v=!0,H(o))}(t)})}}(e)}}var P=getHashPath(),m=h(P);P!==m&&replaceHashPath(m);var w=f(),y=[createPath(w)];function H(n){t.go(n)}var x=0;function L(n){1===(x+=n)&&1===n?window.addEventListener(HashChangeEvent$1,g):0===x&&window.removeEventListener(HashChangeEvent$1,g)}var O=!1;var E={length:t.length,action:"POP",location:w,createHref:function(n){return"#"+h(c+createPath(n))},push:function(n,t){var r=createLocation(n,void 0,void 0,E.location);l.confirmTransitionTo(r,"PUSH",i,function(n){if(n){var t=createPath(r),e=h(c+t);if(getHashPath()!==e){p=t,pushHashPath(e);var a=y.lastIndexOf(createPath(E.location)),o=y.slice(0,-1===a?0:a+1);o.push(t),y=o,d({action:"PUSH",location:r})}else d()}})},replace:function(n,t){var o="REPLACE",r=createLocation(n,void 0,void 0,E.location);l.confirmTransitionTo(r,o,i,function(n){if(n){var t=createPath(r),e=h(c+t);getHashPath()!==e&&(p=t,replaceHashPath(e));var a=y.indexOf(createPath(E.location));-1!==a&&(y[a]=t),d({action:o,location:r})}})},go:H,goBack:function(){H(-1)},goForward:function(){H(1)},block:function(n){void 0===n&&(n=!1);var t=l.setPrompt(n);return O||(L(1),O=!0),function(){return O&&(O=!1,L(-1)),t()}},listen:function(n){var t=l.appendListener(n);return L(1),function(){L(-1),t()}}};return E}function clamp(n,t,e){return Math.min(Math.max(n,t),e)}function createMemoryHistory(n){void 0===n&&(n={});var t=n,o=t.getUserConfirmation,e=t.initialEntries,a=void 0===e?["/"]:e,r=t.initialIndex,i=void 0===r?0:r,c=t.keyLength,s=void 0===c?6:c,h=createTransitionManager();function u(n){_extends(g,n),g.length=g.entries.length,h.notifyListeners(g.location,g.action)}function f(){return Math.random().toString(36).substr(2,s)}var l=clamp(i,0,a.length-1),d=a.map(function(n){return createLocation(n,void 0,"string"==typeof n?f():n.key||f())}),v=createPath;function p(n){var t=clamp(g.index+n,0,g.entries.length-1),e=g.entries[t];h.confirmTransitionTo(e,"POP",o,function(n){n?u({action:"POP",location:e,index:t}):u()})}var g={length:d.length,action:"POP",location:d[l],index:l,entries:d,createHref:v,push:function(n,t){var a=createLocation(n,t,f(),g.location);h.confirmTransitionTo(a,"PUSH",o,function(n){if(n){var t=g.index+1,e=g.entries.slice(0);e.length>t?e.splice(t,e.length-t,a):e.push(a),u({action:"PUSH",location:a,index:t,entries:e})}})},replace:function(n,t){var e="REPLACE",a=createLocation(n,t,f(),g.location);h.confirmTransitionTo(a,e,o,function(n){n&&(g.entries[g.index]=a,u({action:e,location:a}))})},go:p,goBack:function(){p(-1)},goForward:function(){p(1)},canGo:function(n){var t=g.index+n;return 0<=t&&t<g.entries.length},block:function(n){return void 0===n&&(n=!1),h.setPrompt(n)},listen:function(n){return h.appendListener(n)}};return g}exports.createBrowserHistory=createBrowserHistory,exports.createHashHistory=createHashHistory,exports.createMemoryHistory=createMemoryHistory,exports.createLocation=createLocation,exports.locationsAreEqual=locationsAreEqual,exports.parsePath=parsePath,exports.createPath=createPath;

},{"resolve-pathname":74,"tiny-invariant":83,"tiny-warning":84,"value-equal":88}],14:[function(require,module,exports){
(function (process){
'use strict';

if (process.env.NODE_ENV === 'production') {
  module.exports = require('./cjs/history.min.js');
} else {
  module.exports = require('./cjs/history.js');
}

}).call(this,require('_process'))
},{"./cjs/history.js":12,"./cjs/history.min.js":13,"_process":24}],15:[function(require,module,exports){
'use strict';

/**
 * Copyright 2015, Yahoo! Inc.
 * Copyrights licensed under the New BSD License. See the accompanying LICENSE file for terms.
 */
var REACT_STATICS = {
    childContextTypes: true,
    contextTypes: true,
    defaultProps: true,
    displayName: true,
    getDefaultProps: true,
    getDerivedStateFromProps: true,
    mixins: true,
    propTypes: true,
    type: true
};

var KNOWN_STATICS = {
    name: true,
    length: true,
    prototype: true,
    caller: true,
    callee: true,
    arguments: true,
    arity: true
};

var defineProperty = Object.defineProperty;
var getOwnPropertyNames = Object.getOwnPropertyNames;
var getOwnPropertySymbols = Object.getOwnPropertySymbols;
var getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;
var getPrototypeOf = Object.getPrototypeOf;
var objectPrototype = getPrototypeOf && getPrototypeOf(Object);

function hoistNonReactStatics(targetComponent, sourceComponent, blacklist) {
    if (typeof sourceComponent !== 'string') { // don't hoist over string (html) components

        if (objectPrototype) {
            var inheritedComponent = getPrototypeOf(sourceComponent);
            if (inheritedComponent && inheritedComponent !== objectPrototype) {
                hoistNonReactStatics(targetComponent, inheritedComponent, blacklist);
            }
        }

        var keys = getOwnPropertyNames(sourceComponent);

        if (getOwnPropertySymbols) {
            keys = keys.concat(getOwnPropertySymbols(sourceComponent));
        }

        for (var i = 0; i < keys.length; ++i) {
            var key = keys[i];
            if (!REACT_STATICS[key] && !KNOWN_STATICS[key] && (!blacklist || !blacklist[key])) {
                var descriptor = getOwnPropertyDescriptor(sourceComponent, key);
                try { // Avoid failures from read-only properties
                    defineProperty(targetComponent, key, descriptor);
                } catch (e) {}
            }
        }

        return targetComponent;
    }

    return targetComponent;
}

module.exports = hoistNonReactStatics;

},{}],16:[function(require,module,exports){
(function (process){
/**
 * Copyright (c) 2013-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

'use strict';

/**
 * Use invariant() to assert state which your program assumes to be true.
 *
 * Provide sprintf-style format (only %s is supported) and arguments
 * to provide information about what broke and what you were
 * expecting.
 *
 * The invariant message will be stripped in production, but the invariant
 * will remain to ensure logic does not differ in production.
 */

var invariant = function(condition, format, a, b, c, d, e, f) {
  if (process.env.NODE_ENV !== 'production') {
    if (format === undefined) {
      throw new Error('invariant requires an error message argument');
    }
  }

  if (!condition) {
    var error;
    if (format === undefined) {
      error = new Error(
        'Minified exception occurred; use the non-minified dev environment ' +
        'for the full error message and additional helpful warnings.'
      );
    } else {
      var args = [a, b, c, d, e, f];
      var argIndex = 0;
      error = new Error(
        format.replace(/%s/g, function() { return args[argIndex++]; })
      );
      error.name = 'Invariant Violation';
    }

    error.framesToPop = 1; // we don't care about invariant's own frame
    throw error;
  }
};

module.exports = invariant;

}).call(this,require('_process'))
},{"_process":24}],17:[function(require,module,exports){
module.exports = Array.isArray || function (arr) {
  return Object.prototype.toString.call(arr) == '[object Array]';
};

},{}],18:[function(require,module,exports){
/*!
 * jQuery JavaScript Library v3.5.1
 * https://jquery.com/
 *
 * Includes Sizzle.js
 * https://sizzlejs.com/
 *
 * Copyright JS Foundation and other contributors
 * Released under the MIT license
 * https://jquery.org/license
 *
 * Date: 2020-05-04T22:49Z
 */
( function( global, factory ) {

	"use strict";

	if ( typeof module === "object" && typeof module.exports === "object" ) {

		// For CommonJS and CommonJS-like environments where a proper `window`
		// is present, execute the factory and get jQuery.
		// For environments that do not have a `window` with a `document`
		// (such as Node.js), expose a factory as module.exports.
		// This accentuates the need for the creation of a real `window`.
		// e.g. var jQuery = require("jquery")(window);
		// See ticket #14549 for more info.
		module.exports = global.document ?
			factory( global, true ) :
			function( w ) {
				if ( !w.document ) {
					throw new Error( "jQuery requires a window with a document" );
				}
				return factory( w );
			};
	} else {
		factory( global );
	}

// Pass this if window is not defined yet
} )( typeof window !== "undefined" ? window : this, function( window, noGlobal ) {

// Edge <= 12 - 13+, Firefox <=18 - 45+, IE 10 - 11, Safari 5.1 - 9+, iOS 6 - 9.1
// throw exceptions when non-strict code (e.g., ASP.NET 4.5) accesses strict mode
// arguments.callee.caller (trac-13335). But as of jQuery 3.0 (2016), strict mode should be common
// enough that all such attempts are guarded in a try block.
"use strict";

var arr = [];

var getProto = Object.getPrototypeOf;

var slice = arr.slice;

var flat = arr.flat ? function( array ) {
	return arr.flat.call( array );
} : function( array ) {
	return arr.concat.apply( [], array );
};


var push = arr.push;

var indexOf = arr.indexOf;

var class2type = {};

var toString = class2type.toString;

var hasOwn = class2type.hasOwnProperty;

var fnToString = hasOwn.toString;

var ObjectFunctionString = fnToString.call( Object );

var support = {};

var isFunction = function isFunction( obj ) {

      // Support: Chrome <=57, Firefox <=52
      // In some browsers, typeof returns "function" for HTML <object> elements
      // (i.e., `typeof document.createElement( "object" ) === "function"`).
      // We don't want to classify *any* DOM node as a function.
      return typeof obj === "function" && typeof obj.nodeType !== "number";
  };


var isWindow = function isWindow( obj ) {
		return obj != null && obj === obj.window;
	};


var document = window.document;



	var preservedScriptAttributes = {
		type: true,
		src: true,
		nonce: true,
		noModule: true
	};

	function DOMEval( code, node, doc ) {
		doc = doc || document;

		var i, val,
			script = doc.createElement( "script" );

		script.text = code;
		if ( node ) {
			for ( i in preservedScriptAttributes ) {

				// Support: Firefox 64+, Edge 18+
				// Some browsers don't support the "nonce" property on scripts.
				// On the other hand, just using `getAttribute` is not enough as
				// the `nonce` attribute is reset to an empty string whenever it
				// becomes browsing-context connected.
				// See https://github.com/whatwg/html/issues/2369
				// See https://html.spec.whatwg.org/#nonce-attributes
				// The `node.getAttribute` check was added for the sake of
				// `jQuery.globalEval` so that it can fake a nonce-containing node
				// via an object.
				val = node[ i ] || node.getAttribute && node.getAttribute( i );
				if ( val ) {
					script.setAttribute( i, val );
				}
			}
		}
		doc.head.appendChild( script ).parentNode.removeChild( script );
	}


function toType( obj ) {
	if ( obj == null ) {
		return obj + "";
	}

	// Support: Android <=2.3 only (functionish RegExp)
	return typeof obj === "object" || typeof obj === "function" ?
		class2type[ toString.call( obj ) ] || "object" :
		typeof obj;
}
/* global Symbol */
// Defining this global in .eslintrc.json would create a danger of using the global
// unguarded in another place, it seems safer to define global only for this module



var
	version = "3.5.1",

	// Define a local copy of jQuery
	jQuery = function( selector, context ) {

		// The jQuery object is actually just the init constructor 'enhanced'
		// Need init if jQuery is called (just allow error to be thrown if not included)
		return new jQuery.fn.init( selector, context );
	};

jQuery.fn = jQuery.prototype = {

	// The current version of jQuery being used
	jquery: version,

	constructor: jQuery,

	// The default length of a jQuery object is 0
	length: 0,

	toArray: function() {
		return slice.call( this );
	},

	// Get the Nth element in the matched element set OR
	// Get the whole matched element set as a clean array
	get: function( num ) {

		// Return all the elements in a clean array
		if ( num == null ) {
			return slice.call( this );
		}

		// Return just the one element from the set
		return num < 0 ? this[ num + this.length ] : this[ num ];
	},

	// Take an array of elements and push it onto the stack
	// (returning the new matched element set)
	pushStack: function( elems ) {

		// Build a new jQuery matched element set
		var ret = jQuery.merge( this.constructor(), elems );

		// Add the old object onto the stack (as a reference)
		ret.prevObject = this;

		// Return the newly-formed element set
		return ret;
	},

	// Execute a callback for every element in the matched set.
	each: function( callback ) {
		return jQuery.each( this, callback );
	},

	map: function( callback ) {
		return this.pushStack( jQuery.map( this, function( elem, i ) {
			return callback.call( elem, i, elem );
		} ) );
	},

	slice: function() {
		return this.pushStack( slice.apply( this, arguments ) );
	},

	first: function() {
		return this.eq( 0 );
	},

	last: function() {
		return this.eq( -1 );
	},

	even: function() {
		return this.pushStack( jQuery.grep( this, function( _elem, i ) {
			return ( i + 1 ) % 2;
		} ) );
	},

	odd: function() {
		return this.pushStack( jQuery.grep( this, function( _elem, i ) {
			return i % 2;
		} ) );
	},

	eq: function( i ) {
		var len = this.length,
			j = +i + ( i < 0 ? len : 0 );
		return this.pushStack( j >= 0 && j < len ? [ this[ j ] ] : [] );
	},

	end: function() {
		return this.prevObject || this.constructor();
	},

	// For internal use only.
	// Behaves like an Array's method, not like a jQuery method.
	push: push,
	sort: arr.sort,
	splice: arr.splice
};

jQuery.extend = jQuery.fn.extend = function() {
	var options, name, src, copy, copyIsArray, clone,
		target = arguments[ 0 ] || {},
		i = 1,
		length = arguments.length,
		deep = false;

	// Handle a deep copy situation
	if ( typeof target === "boolean" ) {
		deep = target;

		// Skip the boolean and the target
		target = arguments[ i ] || {};
		i++;
	}

	// Handle case when target is a string or something (possible in deep copy)
	if ( typeof target !== "object" && !isFunction( target ) ) {
		target = {};
	}

	// Extend jQuery itself if only one argument is passed
	if ( i === length ) {
		target = this;
		i--;
	}

	for ( ; i < length; i++ ) {

		// Only deal with non-null/undefined values
		if ( ( options = arguments[ i ] ) != null ) {

			// Extend the base object
			for ( name in options ) {
				copy = options[ name ];

				// Prevent Object.prototype pollution
				// Prevent never-ending loop
				if ( name === "__proto__" || target === copy ) {
					continue;
				}

				// Recurse if we're merging plain objects or arrays
				if ( deep && copy && ( jQuery.isPlainObject( copy ) ||
					( copyIsArray = Array.isArray( copy ) ) ) ) {
					src = target[ name ];

					// Ensure proper type for the source value
					if ( copyIsArray && !Array.isArray( src ) ) {
						clone = [];
					} else if ( !copyIsArray && !jQuery.isPlainObject( src ) ) {
						clone = {};
					} else {
						clone = src;
					}
					copyIsArray = false;

					// Never move original objects, clone them
					target[ name ] = jQuery.extend( deep, clone, copy );

				// Don't bring in undefined values
				} else if ( copy !== undefined ) {
					target[ name ] = copy;
				}
			}
		}
	}

	// Return the modified object
	return target;
};

jQuery.extend( {

	// Unique for each copy of jQuery on the page
	expando: "jQuery" + ( version + Math.random() ).replace( /\D/g, "" ),

	// Assume jQuery is ready without the ready module
	isReady: true,

	error: function( msg ) {
		throw new Error( msg );
	},

	noop: function() {},

	isPlainObject: function( obj ) {
		var proto, Ctor;

		// Detect obvious negatives
		// Use toString instead of jQuery.type to catch host objects
		if ( !obj || toString.call( obj ) !== "[object Object]" ) {
			return false;
		}

		proto = getProto( obj );

		// Objects with no prototype (e.g., `Object.create( null )`) are plain
		if ( !proto ) {
			return true;
		}

		// Objects with prototype are plain iff they were constructed by a global Object function
		Ctor = hasOwn.call( proto, "constructor" ) && proto.constructor;
		return typeof Ctor === "function" && fnToString.call( Ctor ) === ObjectFunctionString;
	},

	isEmptyObject: function( obj ) {
		var name;

		for ( name in obj ) {
			return false;
		}
		return true;
	},

	// Evaluates a script in a provided context; falls back to the global one
	// if not specified.
	globalEval: function( code, options, doc ) {
		DOMEval( code, { nonce: options && options.nonce }, doc );
	},

	each: function( obj, callback ) {
		var length, i = 0;

		if ( isArrayLike( obj ) ) {
			length = obj.length;
			for ( ; i < length; i++ ) {
				if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
					break;
				}
			}
		} else {
			for ( i in obj ) {
				if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
					break;
				}
			}
		}

		return obj;
	},

	// results is for internal usage only
	makeArray: function( arr, results ) {
		var ret = results || [];

		if ( arr != null ) {
			if ( isArrayLike( Object( arr ) ) ) {
				jQuery.merge( ret,
					typeof arr === "string" ?
					[ arr ] : arr
				);
			} else {
				push.call( ret, arr );
			}
		}

		return ret;
	},

	inArray: function( elem, arr, i ) {
		return arr == null ? -1 : indexOf.call( arr, elem, i );
	},

	// Support: Android <=4.0 only, PhantomJS 1 only
	// push.apply(_, arraylike) throws on ancient WebKit
	merge: function( first, second ) {
		var len = +second.length,
			j = 0,
			i = first.length;

		for ( ; j < len; j++ ) {
			first[ i++ ] = second[ j ];
		}

		first.length = i;

		return first;
	},

	grep: function( elems, callback, invert ) {
		var callbackInverse,
			matches = [],
			i = 0,
			length = elems.length,
			callbackExpect = !invert;

		// Go through the array, only saving the items
		// that pass the validator function
		for ( ; i < length; i++ ) {
			callbackInverse = !callback( elems[ i ], i );
			if ( callbackInverse !== callbackExpect ) {
				matches.push( elems[ i ] );
			}
		}

		return matches;
	},

	// arg is for internal usage only
	map: function( elems, callback, arg ) {
		var length, value,
			i = 0,
			ret = [];

		// Go through the array, translating each of the items to their new values
		if ( isArrayLike( elems ) ) {
			length = elems.length;
			for ( ; i < length; i++ ) {
				value = callback( elems[ i ], i, arg );

				if ( value != null ) {
					ret.push( value );
				}
			}

		// Go through every key on the object,
		} else {
			for ( i in elems ) {
				value = callback( elems[ i ], i, arg );

				if ( value != null ) {
					ret.push( value );
				}
			}
		}

		// Flatten any nested arrays
		return flat( ret );
	},

	// A global GUID counter for objects
	guid: 1,

	// jQuery.support is not used in Core but other projects attach their
	// properties to it so it needs to exist.
	support: support
} );

if ( typeof Symbol === "function" ) {
	jQuery.fn[ Symbol.iterator ] = arr[ Symbol.iterator ];
}

// Populate the class2type map
jQuery.each( "Boolean Number String Function Array Date RegExp Object Error Symbol".split( " " ),
function( _i, name ) {
	class2type[ "[object " + name + "]" ] = name.toLowerCase();
} );

function isArrayLike( obj ) {

	// Support: real iOS 8.2 only (not reproducible in simulator)
	// `in` check used to prevent JIT error (gh-2145)
	// hasOwn isn't used here due to false negatives
	// regarding Nodelist length in IE
	var length = !!obj && "length" in obj && obj.length,
		type = toType( obj );

	if ( isFunction( obj ) || isWindow( obj ) ) {
		return false;
	}

	return type === "array" || length === 0 ||
		typeof length === "number" && length > 0 && ( length - 1 ) in obj;
}
var Sizzle =
/*!
 * Sizzle CSS Selector Engine v2.3.5
 * https://sizzlejs.com/
 *
 * Copyright JS Foundation and other contributors
 * Released under the MIT license
 * https://js.foundation/
 *
 * Date: 2020-03-14
 */
( function( window ) {
var i,
	support,
	Expr,
	getText,
	isXML,
	tokenize,
	compile,
	select,
	outermostContext,
	sortInput,
	hasDuplicate,

	// Local document vars
	setDocument,
	document,
	docElem,
	documentIsHTML,
	rbuggyQSA,
	rbuggyMatches,
	matches,
	contains,

	// Instance-specific data
	expando = "sizzle" + 1 * new Date(),
	preferredDoc = window.document,
	dirruns = 0,
	done = 0,
	classCache = createCache(),
	tokenCache = createCache(),
	compilerCache = createCache(),
	nonnativeSelectorCache = createCache(),
	sortOrder = function( a, b ) {
		if ( a === b ) {
			hasDuplicate = true;
		}
		return 0;
	},

	// Instance methods
	hasOwn = ( {} ).hasOwnProperty,
	arr = [],
	pop = arr.pop,
	pushNative = arr.push,
	push = arr.push,
	slice = arr.slice,

	// Use a stripped-down indexOf as it's faster than native
	// https://jsperf.com/thor-indexof-vs-for/5
	indexOf = function( list, elem ) {
		var i = 0,
			len = list.length;
		for ( ; i < len; i++ ) {
			if ( list[ i ] === elem ) {
				return i;
			}
		}
		return -1;
	},

	booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|" +
		"ismap|loop|multiple|open|readonly|required|scoped",

	// Regular expressions

	// http://www.w3.org/TR/css3-selectors/#whitespace
	whitespace = "[\\x20\\t\\r\\n\\f]",

	// https://www.w3.org/TR/css-syntax-3/#ident-token-diagram
	identifier = "(?:\\\\[\\da-fA-F]{1,6}" + whitespace +
		"?|\\\\[^\\r\\n\\f]|[\\w-]|[^\0-\\x7f])+",

	// Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors
	attributes = "\\[" + whitespace + "*(" + identifier + ")(?:" + whitespace +

		// Operator (capture 2)
		"*([*^$|!~]?=)" + whitespace +

		// "Attribute values must be CSS identifiers [capture 5]
		// or strings [capture 3 or capture 4]"
		"*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" +
		whitespace + "*\\]",

	pseudos = ":(" + identifier + ")(?:\\((" +

		// To reduce the number of selectors needing tokenize in the preFilter, prefer arguments:
		// 1. quoted (capture 3; capture 4 or capture 5)
		"('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" +

		// 2. simple (capture 6)
		"((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" +

		// 3. anything else (capture 2)
		".*" +
		")\\)|)",

	// Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter
	rwhitespace = new RegExp( whitespace + "+", "g" ),
	rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" +
		whitespace + "+$", "g" ),

	rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ),
	rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace +
		"*" ),
	rdescend = new RegExp( whitespace + "|>" ),

	rpseudo = new RegExp( pseudos ),
	ridentifier = new RegExp( "^" + identifier + "$" ),

	matchExpr = {
		"ID": new RegExp( "^#(" + identifier + ")" ),
		"CLASS": new RegExp( "^\\.(" + identifier + ")" ),
		"TAG": new RegExp( "^(" + identifier + "|[*])" ),
		"ATTR": new RegExp( "^" + attributes ),
		"PSEUDO": new RegExp( "^" + pseudos ),
		"CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" +
			whitespace + "*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" +
			whitespace + "*(\\d+)|))" + whitespace + "*\\)|)", "i" ),
		"bool": new RegExp( "^(?:" + booleans + ")$", "i" ),

		// For use in libraries implementing .is()
		// We use this for POS matching in `select`
		"needsContext": new RegExp( "^" + whitespace +
			"*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" + whitespace +
			"*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" )
	},

	rhtml = /HTML$/i,
	rinputs = /^(?:input|select|textarea|button)$/i,
	rheader = /^h\d$/i,

	rnative = /^[^{]+\{\s*\[native \w/,

	// Easily-parseable/retrievable ID or TAG or CLASS selectors
	rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,

	rsibling = /[+~]/,

	// CSS escapes
	// http://www.w3.org/TR/CSS21/syndata.html#escaped-characters
	runescape = new RegExp( "\\\\[\\da-fA-F]{1,6}" + whitespace + "?|\\\\([^\\r\\n\\f])", "g" ),
	funescape = function( escape, nonHex ) {
		var high = "0x" + escape.slice( 1 ) - 0x10000;

		return nonHex ?

			// Strip the backslash prefix from a non-hex escape sequence
			nonHex :

			// Replace a hexadecimal escape sequence with the encoded Unicode code point
			// Support: IE <=11+
			// For values outside the Basic Multilingual Plane (BMP), manually construct a
			// surrogate pair
			high < 0 ?
				String.fromCharCode( high + 0x10000 ) :
				String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 );
	},

	// CSS string/identifier serialization
	// https://drafts.csswg.org/cssom/#common-serializing-idioms
	rcssescape = /([\0-\x1f\x7f]|^-?\d)|^-$|[^\0-\x1f\x7f-\uFFFF\w-]/g,
	fcssescape = function( ch, asCodePoint ) {
		if ( asCodePoint ) {

			// U+0000 NULL becomes U+FFFD REPLACEMENT CHARACTER
			if ( ch === "\0" ) {
				return "\uFFFD";
			}

			// Control characters and (dependent upon position) numbers get escaped as code points
			return ch.slice( 0, -1 ) + "\\" +
				ch.charCodeAt( ch.length - 1 ).toString( 16 ) + " ";
		}

		// Other potentially-special ASCII characters get backslash-escaped
		return "\\" + ch;
	},

	// Used for iframes
	// See setDocument()
	// Removing the function wrapper causes a "Permission Denied"
	// error in IE
	unloadHandler = function() {
		setDocument();
	},

	inDisabledFieldset = addCombinator(
		function( elem ) {
			return elem.disabled === true && elem.nodeName.toLowerCase() === "fieldset";
		},
		{ dir: "parentNode", next: "legend" }
	);

// Optimize for push.apply( _, NodeList )
try {
	push.apply(
		( arr = slice.call( preferredDoc.childNodes ) ),
		preferredDoc.childNodes
	);

	// Support: Android<4.0
	// Detect silently failing push.apply
	// eslint-disable-next-line no-unused-expressions
	arr[ preferredDoc.childNodes.length ].nodeType;
} catch ( e ) {
	push = { apply: arr.length ?

		// Leverage slice if possible
		function( target, els ) {
			pushNative.apply( target, slice.call( els ) );
		} :

		// Support: IE<9
		// Otherwise append directly
		function( target, els ) {
			var j = target.length,
				i = 0;

			// Can't trust NodeList.length
			while ( ( target[ j++ ] = els[ i++ ] ) ) {}
			target.length = j - 1;
		}
	};
}

function Sizzle( selector, context, results, seed ) {
	var m, i, elem, nid, match, groups, newSelector,
		newContext = context && context.ownerDocument,

		// nodeType defaults to 9, since context defaults to document
		nodeType = context ? context.nodeType : 9;

	results = results || [];

	// Return early from calls with invalid selector or context
	if ( typeof selector !== "string" || !selector ||
		nodeType !== 1 && nodeType !== 9 && nodeType !== 11 ) {

		return results;
	}

	// Try to shortcut find operations (as opposed to filters) in HTML documents
	if ( !seed ) {
		setDocument( context );
		context = context || document;

		if ( documentIsHTML ) {

			// If the selector is sufficiently simple, try using a "get*By*" DOM method
			// (excepting DocumentFragment context, where the methods don't exist)
			if ( nodeType !== 11 && ( match = rquickExpr.exec( selector ) ) ) {

				// ID selector
				if ( ( m = match[ 1 ] ) ) {

					// Document context
					if ( nodeType === 9 ) {
						if ( ( elem = context.getElementById( m ) ) ) {

							// Support: IE, Opera, Webkit
							// TODO: identify versions
							// getElementById can match elements by name instead of ID
							if ( elem.id === m ) {
								results.push( elem );
								return results;
							}
						} else {
							return results;
						}

					// Element context
					} else {

						// Support: IE, Opera, Webkit
						// TODO: identify versions
						// getElementById can match elements by name instead of ID
						if ( newContext && ( elem = newContext.getElementById( m ) ) &&
							contains( context, elem ) &&
							elem.id === m ) {

							results.push( elem );
							return results;
						}
					}

				// Type selector
				} else if ( match[ 2 ] ) {
					push.apply( results, context.getElementsByTagName( selector ) );
					return results;

				// Class selector
				} else if ( ( m = match[ 3 ] ) && support.getElementsByClassName &&
					context.getElementsByClassName ) {

					push.apply( results, context.getElementsByClassName( m ) );
					return results;
				}
			}

			// Take advantage of querySelectorAll
			if ( support.qsa &&
				!nonnativeSelectorCache[ selector + " " ] &&
				( !rbuggyQSA || !rbuggyQSA.test( selector ) ) &&

				// Support: IE 8 only
				// Exclude object elements
				( nodeType !== 1 || context.nodeName.toLowerCase() !== "object" ) ) {

				newSelector = selector;
				newContext = context;

				// qSA considers elements outside a scoping root when evaluating child or
				// descendant combinators, which is not what we want.
				// In such cases, we work around the behavior by prefixing every selector in the
				// list with an ID selector referencing the scope context.
				// The technique has to be used as well when a leading combinator is used
				// as such selectors are not recognized by querySelectorAll.
				// Thanks to Andrew Dupont for this technique.
				if ( nodeType === 1 &&
					( rdescend.test( selector ) || rcombinators.test( selector ) ) ) {

					// Expand context for sibling selectors
					newContext = rsibling.test( selector ) && testContext( context.parentNode ) ||
						context;

					// We can use :scope instead of the ID hack if the browser
					// supports it & if we're not changing the context.
					if ( newContext !== context || !support.scope ) {

						// Capture the context ID, setting it first if necessary
						if ( ( nid = context.getAttribute( "id" ) ) ) {
							nid = nid.replace( rcssescape, fcssescape );
						} else {
							context.setAttribute( "id", ( nid = expando ) );
						}
					}

					// Prefix every selector in the list
					groups = tokenize( selector );
					i = groups.length;
					while ( i-- ) {
						groups[ i ] = ( nid ? "#" + nid : ":scope" ) + " " +
							toSelector( groups[ i ] );
					}
					newSelector = groups.join( "," );
				}

				try {
					push.apply( results,
						newContext.querySelectorAll( newSelector )
					);
					return results;
				} catch ( qsaError ) {
					nonnativeSelectorCache( selector, true );
				} finally {
					if ( nid === expando ) {
						context.removeAttribute( "id" );
					}
				}
			}
		}
	}

	// All others
	return select( selector.replace( rtrim, "$1" ), context, results, seed );
}

/**
 * Create key-value caches of limited size
 * @returns {function(string, object)} Returns the Object data after storing it on itself with
 *	property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)
 *	deleting the oldest entry
 */
function createCache() {
	var keys = [];

	function cache( key, value ) {

		// Use (key + " ") to avoid collision with native prototype properties (see Issue #157)
		if ( keys.push( key + " " ) > Expr.cacheLength ) {

			// Only keep the most recent entries
			delete cache[ keys.shift() ];
		}
		return ( cache[ key + " " ] = value );
	}
	return cache;
}

/**
 * Mark a function for special use by Sizzle
 * @param {Function} fn The function to mark
 */
function markFunction( fn ) {
	fn[ expando ] = true;
	return fn;
}

/**
 * Support testing using an element
 * @param {Function} fn Passed the created element and returns a boolean result
 */
function assert( fn ) {
	var el = document.createElement( "fieldset" );

	try {
		return !!fn( el );
	} catch ( e ) {
		return false;
	} finally {

		// Remove from its parent by default
		if ( el.parentNode ) {
			el.parentNode.removeChild( el );
		}

		// release memory in IE
		el = null;
	}
}

/**
 * Adds the same handler for all of the specified attrs
 * @param {String} attrs Pipe-separated list of attributes
 * @param {Function} handler The method that will be applied
 */
function addHandle( attrs, handler ) {
	var arr = attrs.split( "|" ),
		i = arr.length;

	while ( i-- ) {
		Expr.attrHandle[ arr[ i ] ] = handler;
	}
}

/**
 * Checks document order of two siblings
 * @param {Element} a
 * @param {Element} b
 * @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b
 */
function siblingCheck( a, b ) {
	var cur = b && a,
		diff = cur && a.nodeType === 1 && b.nodeType === 1 &&
			a.sourceIndex - b.sourceIndex;

	// Use IE sourceIndex if available on both nodes
	if ( diff ) {
		return diff;
	}

	// Check if b follows a
	if ( cur ) {
		while ( ( cur = cur.nextSibling ) ) {
			if ( cur === b ) {
				return -1;
			}
		}
	}

	return a ? 1 : -1;
}

/**
 * Returns a function to use in pseudos for input types
 * @param {String} type
 */
function createInputPseudo( type ) {
	return function( elem ) {
		var name = elem.nodeName.toLowerCase();
		return name === "input" && elem.type === type;
	};
}

/**
 * Returns a function to use in pseudos for buttons
 * @param {String} type
 */
function createButtonPseudo( type ) {
	return function( elem ) {
		var name = elem.nodeName.toLowerCase();
		return ( name === "input" || name === "button" ) && elem.type === type;
	};
}

/**
 * Returns a function to use in pseudos for :enabled/:disabled
 * @param {Boolean} disabled true for :disabled; false for :enabled
 */
function createDisabledPseudo( disabled ) {

	// Known :disabled false positives: fieldset[disabled] > legend:nth-of-type(n+2) :can-disable
	return function( elem ) {

		// Only certain elements can match :enabled or :disabled
		// https://html.spec.whatwg.org/multipage/scripting.html#selector-enabled
		// https://html.spec.whatwg.org/multipage/scripting.html#selector-disabled
		if ( "form" in elem ) {

			// Check for inherited disabledness on relevant non-disabled elements:
			// * listed form-associated elements in a disabled fieldset
			//   https://html.spec.whatwg.org/multipage/forms.html#category-listed
			//   https://html.spec.whatwg.org/multipage/forms.html#concept-fe-disabled
			// * option elements in a disabled optgroup
			//   https://html.spec.whatwg.org/multipage/forms.html#concept-option-disabled
			// All such elements have a "form" property.
			if ( elem.parentNode && elem.disabled === false ) {

				// Option elements defer to a parent optgroup if present
				if ( "label" in elem ) {
					if ( "label" in elem.parentNode ) {
						return elem.parentNode.disabled === disabled;
					} else {
						return elem.disabled === disabled;
					}
				}

				// Support: IE 6 - 11
				// Use the isDisabled shortcut property to check for disabled fieldset ancestors
				return elem.isDisabled === disabled ||

					// Where there is no isDisabled, check manually
					/* jshint -W018 */
					elem.isDisabled !== !disabled &&
					inDisabledFieldset( elem ) === disabled;
			}

			return elem.disabled === disabled;

		// Try to winnow out elements that can't be disabled before trusting the disabled property.
		// Some victims get caught in our net (label, legend, menu, track), but it shouldn't
		// even exist on them, let alone have a boolean value.
		} else if ( "label" in elem ) {
			return elem.disabled === disabled;
		}

		// Remaining elements are neither :enabled nor :disabled
		return false;
	};
}

/**
 * Returns a function to use in pseudos for positionals
 * @param {Function} fn
 */
function createPositionalPseudo( fn ) {
	return markFunction( function( argument ) {
		argument = +argument;
		return markFunction( function( seed, matches ) {
			var j,
				matchIndexes = fn( [], seed.length, argument ),
				i = matchIndexes.length;

			// Match elements found at the specified indexes
			while ( i-- ) {
				if ( seed[ ( j = matchIndexes[ i ] ) ] ) {
					seed[ j ] = !( matches[ j ] = seed[ j ] );
				}
			}
		} );
	} );
}

/**
 * Checks a node for validity as a Sizzle context
 * @param {Element|Object=} context
 * @returns {Element|Object|Boolean} The input node if acceptable, otherwise a falsy value
 */
function testContext( context ) {
	return context && typeof context.getElementsByTagName !== "undefined" && context;
}

// Expose support vars for convenience
support = Sizzle.support = {};

/**
 * Detects XML nodes
 * @param {Element|Object} elem An element or a document
 * @returns {Boolean} True iff elem is a non-HTML XML node
 */
isXML = Sizzle.isXML = function( elem ) {
	var namespace = elem.namespaceURI,
		docElem = ( elem.ownerDocument || elem ).documentElement;

	// Support: IE <=8
	// Assume HTML when documentElement doesn't yet exist, such as inside loading iframes
	// https://bugs.jquery.com/ticket/4833
	return !rhtml.test( namespace || docElem && docElem.nodeName || "HTML" );
};

/**
 * Sets document-related variables once based on the current document
 * @param {Element|Object} [doc] An element or document object to use to set the document
 * @returns {Object} Returns the current document
 */
setDocument = Sizzle.setDocument = function( node ) {
	var hasCompare, subWindow,
		doc = node ? node.ownerDocument || node : preferredDoc;

	// Return early if doc is invalid or already selected
	// Support: IE 11+, Edge 17 - 18+
	// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
	// two documents; shallow comparisons work.
	// eslint-disable-next-line eqeqeq
	if ( doc == document || doc.nodeType !== 9 || !doc.documentElement ) {
		return document;
	}

	// Update global variables
	document = doc;
	docElem = document.documentElement;
	documentIsHTML = !isXML( document );

	// Support: IE 9 - 11+, Edge 12 - 18+
	// Accessing iframe documents after unload throws "permission denied" errors (jQuery #13936)
	// Support: IE 11+, Edge 17 - 18+
	// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
	// two documents; shallow comparisons work.
	// eslint-disable-next-line eqeqeq
	if ( preferredDoc != document &&
		( subWindow = document.defaultView ) && subWindow.top !== subWindow ) {

		// Support: IE 11, Edge
		if ( subWindow.addEventListener ) {
			subWindow.addEventListener( "unload", unloadHandler, false );

		// Support: IE 9 - 10 only
		} else if ( subWindow.attachEvent ) {
			subWindow.attachEvent( "onunload", unloadHandler );
		}
	}

	// Support: IE 8 - 11+, Edge 12 - 18+, Chrome <=16 - 25 only, Firefox <=3.6 - 31 only,
	// Safari 4 - 5 only, Opera <=11.6 - 12.x only
	// IE/Edge & older browsers don't support the :scope pseudo-class.
	// Support: Safari 6.0 only
	// Safari 6.0 supports :scope but it's an alias of :root there.
	support.scope = assert( function( el ) {
		docElem.appendChild( el ).appendChild( document.createElement( "div" ) );
		return typeof el.querySelectorAll !== "undefined" &&
			!el.querySelectorAll( ":scope fieldset div" ).length;
	} );

	/* Attributes
	---------------------------------------------------------------------- */

	// Support: IE<8
	// Verify that getAttribute really returns attributes and not properties
	// (excepting IE8 booleans)
	support.attributes = assert( function( el ) {
		el.className = "i";
		return !el.getAttribute( "className" );
	} );

	/* getElement(s)By*
	---------------------------------------------------------------------- */

	// Check if getElementsByTagName("*") returns only elements
	support.getElementsByTagName = assert( function( el ) {
		el.appendChild( document.createComment( "" ) );
		return !el.getElementsByTagName( "*" ).length;
	} );

	// Support: IE<9
	support.getElementsByClassName = rnative.test( document.getElementsByClassName );

	// Support: IE<10
	// Check if getElementById returns elements by name
	// The broken getElementById methods don't pick up programmatically-set names,
	// so use a roundabout getElementsByName test
	support.getById = assert( function( el ) {
		docElem.appendChild( el ).id = expando;
		return !document.getElementsByName || !document.getElementsByName( expando ).length;
	} );

	// ID filter and find
	if ( support.getById ) {
		Expr.filter[ "ID" ] = function( id ) {
			var attrId = id.replace( runescape, funescape );
			return function( elem ) {
				return elem.getAttribute( "id" ) === attrId;
			};
		};
		Expr.find[ "ID" ] = function( id, context ) {
			if ( typeof context.getElementById !== "undefined" && documentIsHTML ) {
				var elem = context.getElementById( id );
				return elem ? [ elem ] : [];
			}
		};
	} else {
		Expr.filter[ "ID" ] =  function( id ) {
			var attrId = id.replace( runescape, funescape );
			return function( elem ) {
				var node = typeof elem.getAttributeNode !== "undefined" &&
					elem.getAttributeNode( "id" );
				return node && node.value === attrId;
			};
		};

		// Support: IE 6 - 7 only
		// getElementById is not reliable as a find shortcut
		Expr.find[ "ID" ] = function( id, context ) {
			if ( typeof context.getElementById !== "undefined" && documentIsHTML ) {
				var node, i, elems,
					elem = context.getElementById( id );

				if ( elem ) {

					// Verify the id attribute
					node = elem.getAttributeNode( "id" );
					if ( node && node.value === id ) {
						return [ elem ];
					}

					// Fall back on getElementsByName
					elems = context.getElementsByName( id );
					i = 0;
					while ( ( elem = elems[ i++ ] ) ) {
						node = elem.getAttributeNode( "id" );
						if ( node && node.value === id ) {
							return [ elem ];
						}
					}
				}

				return [];
			}
		};
	}

	// Tag
	Expr.find[ "TAG" ] = support.getElementsByTagName ?
		function( tag, context ) {
			if ( typeof context.getElementsByTagName !== "undefined" ) {
				return context.getElementsByTagName( tag );

			// DocumentFragment nodes don't have gEBTN
			} else if ( support.qsa ) {
				return context.querySelectorAll( tag );
			}
		} :

		function( tag, context ) {
			var elem,
				tmp = [],
				i = 0,

				// By happy coincidence, a (broken) gEBTN appears on DocumentFragment nodes too
				results = context.getElementsByTagName( tag );

			// Filter out possible comments
			if ( tag === "*" ) {
				while ( ( elem = results[ i++ ] ) ) {
					if ( elem.nodeType === 1 ) {
						tmp.push( elem );
					}
				}

				return tmp;
			}
			return results;
		};

	// Class
	Expr.find[ "CLASS" ] = support.getElementsByClassName && function( className, context ) {
		if ( typeof context.getElementsByClassName !== "undefined" && documentIsHTML ) {
			return context.getElementsByClassName( className );
		}
	};

	/* QSA/matchesSelector
	---------------------------------------------------------------------- */

	// QSA and matchesSelector support

	// matchesSelector(:active) reports false when true (IE9/Opera 11.5)
	rbuggyMatches = [];

	// qSa(:focus) reports false when true (Chrome 21)
	// We allow this because of a bug in IE8/9 that throws an error
	// whenever `document.activeElement` is accessed on an iframe
	// So, we allow :focus to pass through QSA all the time to avoid the IE error
	// See https://bugs.jquery.com/ticket/13378
	rbuggyQSA = [];

	if ( ( support.qsa = rnative.test( document.querySelectorAll ) ) ) {

		// Build QSA regex
		// Regex strategy adopted from Diego Perini
		assert( function( el ) {

			var input;

			// Select is set to empty string on purpose
			// This is to test IE's treatment of not explicitly
			// setting a boolean content attribute,
			// since its presence should be enough
			// https://bugs.jquery.com/ticket/12359
			docElem.appendChild( el ).innerHTML = "<a id='" + expando + "'></a>" +
				"<select id='" + expando + "-\r\\' msallowcapture=''>" +
				"<option selected=''></option></select>";

			// Support: IE8, Opera 11-12.16
			// Nothing should be selected when empty strings follow ^= or $= or *=
			// The test attribute must be unknown in Opera but "safe" for WinRT
			// https://msdn.microsoft.com/en-us/library/ie/hh465388.aspx#attribute_section
			if ( el.querySelectorAll( "[msallowcapture^='']" ).length ) {
				rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:''|\"\")" );
			}

			// Support: IE8
			// Boolean attributes and "value" are not treated correctly
			if ( !el.querySelectorAll( "[selected]" ).length ) {
				rbuggyQSA.push( "\\[" + whitespace + "*(?:value|" + booleans + ")" );
			}

			// Support: Chrome<29, Android<4.4, Safari<7.0+, iOS<7.0+, PhantomJS<1.9.8+
			if ( !el.querySelectorAll( "[id~=" + expando + "-]" ).length ) {
				rbuggyQSA.push( "~=" );
			}

			// Support: IE 11+, Edge 15 - 18+
			// IE 11/Edge don't find elements on a `[name='']` query in some cases.
			// Adding a temporary attribute to the document before the selection works
			// around the issue.
			// Interestingly, IE 10 & older don't seem to have the issue.
			input = document.createElement( "input" );
			input.setAttribute( "name", "" );
			el.appendChild( input );
			if ( !el.querySelectorAll( "[name='']" ).length ) {
				rbuggyQSA.push( "\\[" + whitespace + "*name" + whitespace + "*=" +
					whitespace + "*(?:''|\"\")" );
			}

			// Webkit/Opera - :checked should return selected option elements
			// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
			// IE8 throws error here and will not see later tests
			if ( !el.querySelectorAll( ":checked" ).length ) {
				rbuggyQSA.push( ":checked" );
			}

			// Support: Safari 8+, iOS 8+
			// https://bugs.webkit.org/show_bug.cgi?id=136851
			// In-page `selector#id sibling-combinator selector` fails
			if ( !el.querySelectorAll( "a#" + expando + "+*" ).length ) {
				rbuggyQSA.push( ".#.+[+~]" );
			}

			// Support: Firefox <=3.6 - 5 only
			// Old Firefox doesn't throw on a badly-escaped identifier.
			el.querySelectorAll( "\\\f" );
			rbuggyQSA.push( "[\\r\\n\\f]" );
		} );

		assert( function( el ) {
			el.innerHTML = "<a href='' disabled='disabled'></a>" +
				"<select disabled='disabled'><option/></select>";

			// Support: Windows 8 Native Apps
			// The type and name attributes are restricted during .innerHTML assignment
			var input = document.createElement( "input" );
			input.setAttribute( "type", "hidden" );
			el.appendChild( input ).setAttribute( "name", "D" );

			// Support: IE8
			// Enforce case-sensitivity of name attribute
			if ( el.querySelectorAll( "[name=d]" ).length ) {
				rbuggyQSA.push( "name" + whitespace + "*[*^$|!~]?=" );
			}

			// FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled)
			// IE8 throws error here and will not see later tests
			if ( el.querySelectorAll( ":enabled" ).length !== 2 ) {
				rbuggyQSA.push( ":enabled", ":disabled" );
			}

			// Support: IE9-11+
			// IE's :disabled selector does not pick up the children of disabled fieldsets
			docElem.appendChild( el ).disabled = true;
			if ( el.querySelectorAll( ":disabled" ).length !== 2 ) {
				rbuggyQSA.push( ":enabled", ":disabled" );
			}

			// Support: Opera 10 - 11 only
			// Opera 10-11 does not throw on post-comma invalid pseudos
			el.querySelectorAll( "*,:x" );
			rbuggyQSA.push( ",.*:" );
		} );
	}

	if ( ( support.matchesSelector = rnative.test( ( matches = docElem.matches ||
		docElem.webkitMatchesSelector ||
		docElem.mozMatchesSelector ||
		docElem.oMatchesSelector ||
		docElem.msMatchesSelector ) ) ) ) {

		assert( function( el ) {

			// Check to see if it's possible to do matchesSelector
			// on a disconnected node (IE 9)
			support.disconnectedMatch = matches.call( el, "*" );

			// This should fail with an exception
			// Gecko does not error, returns false instead
			matches.call( el, "[s!='']:x" );
			rbuggyMatches.push( "!=", pseudos );
		} );
	}

	rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join( "|" ) );
	rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join( "|" ) );

	/* Contains
	---------------------------------------------------------------------- */
	hasCompare = rnative.test( docElem.compareDocumentPosition );

	// Element contains another
	// Purposefully self-exclusive
	// As in, an element does not contain itself
	contains = hasCompare || rnative.test( docElem.contains ) ?
		function( a, b ) {
			var adown = a.nodeType === 9 ? a.documentElement : a,
				bup = b && b.parentNode;
			return a === bup || !!( bup && bup.nodeType === 1 && (
				adown.contains ?
					adown.contains( bup ) :
					a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16
			) );
		} :
		function( a, b ) {
			if ( b ) {
				while ( ( b = b.parentNode ) ) {
					if ( b === a ) {
						return true;
					}
				}
			}
			return false;
		};

	/* Sorting
	---------------------------------------------------------------------- */

	// Document order sorting
	sortOrder = hasCompare ?
	function( a, b ) {

		// Flag for duplicate removal
		if ( a === b ) {
			hasDuplicate = true;
			return 0;
		}

		// Sort on method existence if only one input has compareDocumentPosition
		var compare = !a.compareDocumentPosition - !b.compareDocumentPosition;
		if ( compare ) {
			return compare;
		}

		// Calculate position if both inputs belong to the same document
		// Support: IE 11+, Edge 17 - 18+
		// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
		// two documents; shallow comparisons work.
		// eslint-disable-next-line eqeqeq
		compare = ( a.ownerDocument || a ) == ( b.ownerDocument || b ) ?
			a.compareDocumentPosition( b ) :

			// Otherwise we know they are disconnected
			1;

		// Disconnected nodes
		if ( compare & 1 ||
			( !support.sortDetached && b.compareDocumentPosition( a ) === compare ) ) {

			// Choose the first element that is related to our preferred document
			// Support: IE 11+, Edge 17 - 18+
			// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
			// two documents; shallow comparisons work.
			// eslint-disable-next-line eqeqeq
			if ( a == document || a.ownerDocument == preferredDoc &&
				contains( preferredDoc, a ) ) {
				return -1;
			}

			// Support: IE 11+, Edge 17 - 18+
			// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
			// two documents; shallow comparisons work.
			// eslint-disable-next-line eqeqeq
			if ( b == document || b.ownerDocument == preferredDoc &&
				contains( preferredDoc, b ) ) {
				return 1;
			}

			// Maintain original order
			return sortInput ?
				( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
				0;
		}

		return compare & 4 ? -1 : 1;
	} :
	function( a, b ) {

		// Exit early if the nodes are identical
		if ( a === b ) {
			hasDuplicate = true;
			return 0;
		}

		var cur,
			i = 0,
			aup = a.parentNode,
			bup = b.parentNode,
			ap = [ a ],
			bp = [ b ];

		// Parentless nodes are either documents or disconnected
		if ( !aup || !bup ) {

			// Support: IE 11+, Edge 17 - 18+
			// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
			// two documents; shallow comparisons work.
			/* eslint-disable eqeqeq */
			return a == document ? -1 :
				b == document ? 1 :
				/* eslint-enable eqeqeq */
				aup ? -1 :
				bup ? 1 :
				sortInput ?
				( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
				0;

		// If the nodes are siblings, we can do a quick check
		} else if ( aup === bup ) {
			return siblingCheck( a, b );
		}

		// Otherwise we need full lists of their ancestors for comparison
		cur = a;
		while ( ( cur = cur.parentNode ) ) {
			ap.unshift( cur );
		}
		cur = b;
		while ( ( cur = cur.parentNode ) ) {
			bp.unshift( cur );
		}

		// Walk down the tree looking for a discrepancy
		while ( ap[ i ] === bp[ i ] ) {
			i++;
		}

		return i ?

			// Do a sibling check if the nodes have a common ancestor
			siblingCheck( ap[ i ], bp[ i ] ) :

			// Otherwise nodes in our document sort first
			// Support: IE 11+, Edge 17 - 18+
			// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
			// two documents; shallow comparisons work.
			/* eslint-disable eqeqeq */
			ap[ i ] == preferredDoc ? -1 :
			bp[ i ] == preferredDoc ? 1 :
			/* eslint-enable eqeqeq */
			0;
	};

	return document;
};

Sizzle.matches = function( expr, elements ) {
	return Sizzle( expr, null, null, elements );
};

Sizzle.matchesSelector = function( elem, expr ) {
	setDocument( elem );

	if ( support.matchesSelector && documentIsHTML &&
		!nonnativeSelectorCache[ expr + " " ] &&
		( !rbuggyMatches || !rbuggyMatches.test( expr ) ) &&
		( !rbuggyQSA     || !rbuggyQSA.test( expr ) ) ) {

		try {
			var ret = matches.call( elem, expr );

			// IE 9's matchesSelector returns false on disconnected nodes
			if ( ret || support.disconnectedMatch ||

				// As well, disconnected nodes are said to be in a document
				// fragment in IE 9
				elem.document && elem.document.nodeType !== 11 ) {
				return ret;
			}
		} catch ( e ) {
			nonnativeSelectorCache( expr, true );
		}
	}

	return Sizzle( expr, document, null, [ elem ] ).length > 0;
};

Sizzle.contains = function( context, elem ) {

	// Set document vars if needed
	// Support: IE 11+, Edge 17 - 18+
	// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
	// two documents; shallow comparisons work.
	// eslint-disable-next-line eqeqeq
	if ( ( context.ownerDocument || context ) != document ) {
		setDocument( context );
	}
	return contains( context, elem );
};

Sizzle.attr = function( elem, name ) {

	// Set document vars if needed
	// Support: IE 11+, Edge 17 - 18+
	// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
	// two documents; shallow comparisons work.
	// eslint-disable-next-line eqeqeq
	if ( ( elem.ownerDocument || elem ) != document ) {
		setDocument( elem );
	}

	var fn = Expr.attrHandle[ name.toLowerCase() ],

		// Don't get fooled by Object.prototype properties (jQuery #13807)
		val = fn && hasOwn.call( Expr.attrHandle, name.toLowerCase() ) ?
			fn( elem, name, !documentIsHTML ) :
			undefined;

	return val !== undefined ?
		val :
		support.attributes || !documentIsHTML ?
			elem.getAttribute( name ) :
			( val = elem.getAttributeNode( name ) ) && val.specified ?
				val.value :
				null;
};

Sizzle.escape = function( sel ) {
	return ( sel + "" ).replace( rcssescape, fcssescape );
};

Sizzle.error = function( msg ) {
	throw new Error( "Syntax error, unrecognized expression: " + msg );
};

/**
 * Document sorting and removing duplicates
 * @param {ArrayLike} results
 */
Sizzle.uniqueSort = function( results ) {
	var elem,
		duplicates = [],
		j = 0,
		i = 0;

	// Unless we *know* we can detect duplicates, assume their presence
	hasDuplicate = !support.detectDuplicates;
	sortInput = !support.sortStable && results.slice( 0 );
	results.sort( sortOrder );

	if ( hasDuplicate ) {
		while ( ( elem = results[ i++ ] ) ) {
			if ( elem === results[ i ] ) {
				j = duplicates.push( i );
			}
		}
		while ( j-- ) {
			results.splice( duplicates[ j ], 1 );
		}
	}

	// Clear input after sorting to release objects
	// See https://github.com/jquery/sizzle/pull/225
	sortInput = null;

	return results;
};

/**
 * Utility function for retrieving the text value of an array of DOM nodes
 * @param {Array|Element} elem
 */
getText = Sizzle.getText = function( elem ) {
	var node,
		ret = "",
		i = 0,
		nodeType = elem.nodeType;

	if ( !nodeType ) {

		// If no nodeType, this is expected to be an array
		while ( ( node = elem[ i++ ] ) ) {

			// Do not traverse comment nodes
			ret += getText( node );
		}
	} else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) {

		// Use textContent for elements
		// innerText usage removed for consistency of new lines (jQuery #11153)
		if ( typeof elem.textContent === "string" ) {
			return elem.textContent;
		} else {

			// Traverse its children
			for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
				ret += getText( elem );
			}
		}
	} else if ( nodeType === 3 || nodeType === 4 ) {
		return elem.nodeValue;
	}

	// Do not include comment or processing instruction nodes

	return ret;
};

Expr = Sizzle.selectors = {

	// Can be adjusted by the user
	cacheLength: 50,

	createPseudo: markFunction,

	match: matchExpr,

	attrHandle: {},

	find: {},

	relative: {
		">": { dir: "parentNode", first: true },
		" ": { dir: "parentNode" },
		"+": { dir: "previousSibling", first: true },
		"~": { dir: "previousSibling" }
	},

	preFilter: {
		"ATTR": function( match ) {
			match[ 1 ] = match[ 1 ].replace( runescape, funescape );

			// Move the given value to match[3] whether quoted or unquoted
			match[ 3 ] = ( match[ 3 ] || match[ 4 ] ||
				match[ 5 ] || "" ).replace( runescape, funescape );

			if ( match[ 2 ] === "~=" ) {
				match[ 3 ] = " " + match[ 3 ] + " ";
			}

			return match.slice( 0, 4 );
		},

		"CHILD": function( match ) {

			/* matches from matchExpr["CHILD"]
				1 type (only|nth|...)
				2 what (child|of-type)
				3 argument (even|odd|\d*|\d*n([+-]\d+)?|...)
				4 xn-component of xn+y argument ([+-]?\d*n|)
				5 sign of xn-component
				6 x of xn-component
				7 sign of y-component
				8 y of y-component
			*/
			match[ 1 ] = match[ 1 ].toLowerCase();

			if ( match[ 1 ].slice( 0, 3 ) === "nth" ) {

				// nth-* requires argument
				if ( !match[ 3 ] ) {
					Sizzle.error( match[ 0 ] );
				}

				// numeric x and y parameters for Expr.filter.CHILD
				// remember that false/true cast respectively to 0/1
				match[ 4 ] = +( match[ 4 ] ?
					match[ 5 ] + ( match[ 6 ] || 1 ) :
					2 * ( match[ 3 ] === "even" || match[ 3 ] === "odd" ) );
				match[ 5 ] = +( ( match[ 7 ] + match[ 8 ] ) || match[ 3 ] === "odd" );

				// other types prohibit arguments
			} else if ( match[ 3 ] ) {
				Sizzle.error( match[ 0 ] );
			}

			return match;
		},

		"PSEUDO": function( match ) {
			var excess,
				unquoted = !match[ 6 ] && match[ 2 ];

			if ( matchExpr[ "CHILD" ].test( match[ 0 ] ) ) {
				return null;
			}

			// Accept quoted arguments as-is
			if ( match[ 3 ] ) {
				match[ 2 ] = match[ 4 ] || match[ 5 ] || "";

			// Strip excess characters from unquoted arguments
			} else if ( unquoted && rpseudo.test( unquoted ) &&

				// Get excess from tokenize (recursively)
				( excess = tokenize( unquoted, true ) ) &&

				// advance to the next closing parenthesis
				( excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length ) ) {

				// excess is a negative index
				match[ 0 ] = match[ 0 ].slice( 0, excess );
				match[ 2 ] = unquoted.slice( 0, excess );
			}

			// Return only captures needed by the pseudo filter method (type and argument)
			return match.slice( 0, 3 );
		}
	},

	filter: {

		"TAG": function( nodeNameSelector ) {
			var nodeName = nodeNameSelector.replace( runescape, funescape ).toLowerCase();
			return nodeNameSelector === "*" ?
				function() {
					return true;
				} :
				function( elem ) {
					return elem.nodeName && elem.nodeName.toLowerCase() === nodeName;
				};
		},

		"CLASS": function( className ) {
			var pattern = classCache[ className + " " ];

			return pattern ||
				( pattern = new RegExp( "(^|" + whitespace +
					")" + className + "(" + whitespace + "|$)" ) ) && classCache(
						className, function( elem ) {
							return pattern.test(
								typeof elem.className === "string" && elem.className ||
								typeof elem.getAttribute !== "undefined" &&
									elem.getAttribute( "class" ) ||
								""
							);
				} );
		},

		"ATTR": function( name, operator, check ) {
			return function( elem ) {
				var result = Sizzle.attr( elem, name );

				if ( result == null ) {
					return operator === "!=";
				}
				if ( !operator ) {
					return true;
				}

				result += "";

				/* eslint-disable max-len */

				return operator === "=" ? result === check :
					operator === "!=" ? result !== check :
					operator === "^=" ? check && result.indexOf( check ) === 0 :
					operator === "*=" ? check && result.indexOf( check ) > -1 :
					operator === "$=" ? check && result.slice( -check.length ) === check :
					operator === "~=" ? ( " " + result.replace( rwhitespace, " " ) + " " ).indexOf( check ) > -1 :
					operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" :
					false;
				/* eslint-enable max-len */

			};
		},

		"CHILD": function( type, what, _argument, first, last ) {
			var simple = type.slice( 0, 3 ) !== "nth",
				forward = type.slice( -4 ) !== "last",
				ofType = what === "of-type";

			return first === 1 && last === 0 ?

				// Shortcut for :nth-*(n)
				function( elem ) {
					return !!elem.parentNode;
				} :

				function( elem, _context, xml ) {
					var cache, uniqueCache, outerCache, node, nodeIndex, start,
						dir = simple !== forward ? "nextSibling" : "previousSibling",
						parent = elem.parentNode,
						name = ofType && elem.nodeName.toLowerCase(),
						useCache = !xml && !ofType,
						diff = false;

					if ( parent ) {

						// :(first|last|only)-(child|of-type)
						if ( simple ) {
							while ( dir ) {
								node = elem;
								while ( ( node = node[ dir ] ) ) {
									if ( ofType ?
										node.nodeName.toLowerCase() === name :
										node.nodeType === 1 ) {

										return false;
									}
								}

								// Reverse direction for :only-* (if we haven't yet done so)
								start = dir = type === "only" && !start && "nextSibling";
							}
							return true;
						}

						start = [ forward ? parent.firstChild : parent.lastChild ];

						// non-xml :nth-child(...) stores cache data on `parent`
						if ( forward && useCache ) {

							// Seek `elem` from a previously-cached index

							// ...in a gzip-friendly way
							node = parent;
							outerCache = node[ expando ] || ( node[ expando ] = {} );

							// Support: IE <9 only
							// Defend against cloned attroperties (jQuery gh-1709)
							uniqueCache = outerCache[ node.uniqueID ] ||
								( outerCache[ node.uniqueID ] = {} );

							cache = uniqueCache[ type ] || [];
							nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
							diff = nodeIndex && cache[ 2 ];
							node = nodeIndex && parent.childNodes[ nodeIndex ];

							while ( ( node = ++nodeIndex && node && node[ dir ] ||

								// Fallback to seeking `elem` from the start
								( diff = nodeIndex = 0 ) || start.pop() ) ) {

								// When found, cache indexes on `parent` and break
								if ( node.nodeType === 1 && ++diff && node === elem ) {
									uniqueCache[ type ] = [ dirruns, nodeIndex, diff ];
									break;
								}
							}

						} else {

							// Use previously-cached element index if available
							if ( useCache ) {

								// ...in a gzip-friendly way
								node = elem;
								outerCache = node[ expando ] || ( node[ expando ] = {} );

								// Support: IE <9 only
								// Defend against cloned attroperties (jQuery gh-1709)
								uniqueCache = outerCache[ node.uniqueID ] ||
									( outerCache[ node.uniqueID ] = {} );

								cache = uniqueCache[ type ] || [];
								nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
								diff = nodeIndex;
							}

							// xml :nth-child(...)
							// or :nth-last-child(...) or :nth(-last)?-of-type(...)
							if ( diff === false ) {

								// Use the same loop as above to seek `elem` from the start
								while ( ( node = ++nodeIndex && node && node[ dir ] ||
									( diff = nodeIndex = 0 ) || start.pop() ) ) {

									if ( ( ofType ?
										node.nodeName.toLowerCase() === name :
										node.nodeType === 1 ) &&
										++diff ) {

										// Cache the index of each encountered element
										if ( useCache ) {
											outerCache = node[ expando ] ||
												( node[ expando ] = {} );

											// Support: IE <9 only
											// Defend against cloned attroperties (jQuery gh-1709)
											uniqueCache = outerCache[ node.uniqueID ] ||
												( outerCache[ node.uniqueID ] = {} );

											uniqueCache[ type ] = [ dirruns, diff ];
										}

										if ( node === elem ) {
											break;
										}
									}
								}
							}
						}

						// Incorporate the offset, then check against cycle size
						diff -= last;
						return diff === first || ( diff % first === 0 && diff / first >= 0 );
					}
				};
		},

		"PSEUDO": function( pseudo, argument ) {

			// pseudo-class names are case-insensitive
			// http://www.w3.org/TR/selectors/#pseudo-classes
			// Prioritize by case sensitivity in case custom pseudos are added with uppercase letters
			// Remember that setFilters inherits from pseudos
			var args,
				fn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] ||
					Sizzle.error( "unsupported pseudo: " + pseudo );

			// The user may use createPseudo to indicate that
			// arguments are needed to create the filter function
			// just as Sizzle does
			if ( fn[ expando ] ) {
				return fn( argument );
			}

			// But maintain support for old signatures
			if ( fn.length > 1 ) {
				args = [ pseudo, pseudo, "", argument ];
				return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ?
					markFunction( function( seed, matches ) {
						var idx,
							matched = fn( seed, argument ),
							i = matched.length;
						while ( i-- ) {
							idx = indexOf( seed, matched[ i ] );
							seed[ idx ] = !( matches[ idx ] = matched[ i ] );
						}
					} ) :
					function( elem ) {
						return fn( elem, 0, args );
					};
			}

			return fn;
		}
	},

	pseudos: {

		// Potentially complex pseudos
		"not": markFunction( function( selector ) {

			// Trim the selector passed to compile
			// to avoid treating leading and trailing
			// spaces as combinators
			var input = [],
				results = [],
				matcher = compile( selector.replace( rtrim, "$1" ) );

			return matcher[ expando ] ?
				markFunction( function( seed, matches, _context, xml ) {
					var elem,
						unmatched = matcher( seed, null, xml, [] ),
						i = seed.length;

					// Match elements unmatched by `matcher`
					while ( i-- ) {
						if ( ( elem = unmatched[ i ] ) ) {
							seed[ i ] = !( matches[ i ] = elem );
						}
					}
				} ) :
				function( elem, _context, xml ) {
					input[ 0 ] = elem;
					matcher( input, null, xml, results );

					// Don't keep the element (issue #299)
					input[ 0 ] = null;
					return !results.pop();
				};
		} ),

		"has": markFunction( function( selector ) {
			return function( elem ) {
				return Sizzle( selector, elem ).length > 0;
			};
		} ),

		"contains": markFunction( function( text ) {
			text = text.replace( runescape, funescape );
			return function( elem ) {
				return ( elem.textContent || getText( elem ) ).indexOf( text ) > -1;
			};
		} ),

		// "Whether an element is represented by a :lang() selector
		// is based solely on the element's language value
		// being equal to the identifier C,
		// or beginning with the identifier C immediately followed by "-".
		// The matching of C against the element's language value is performed case-insensitively.
		// The identifier C does not have to be a valid language name."
		// http://www.w3.org/TR/selectors/#lang-pseudo
		"lang": markFunction( function( lang ) {

			// lang value must be a valid identifier
			if ( !ridentifier.test( lang || "" ) ) {
				Sizzle.error( "unsupported lang: " + lang );
			}
			lang = lang.replace( runescape, funescape ).toLowerCase();
			return function( elem ) {
				var elemLang;
				do {
					if ( ( elemLang = documentIsHTML ?
						elem.lang :
						elem.getAttribute( "xml:lang" ) || elem.getAttribute( "lang" ) ) ) {

						elemLang = elemLang.toLowerCase();
						return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0;
					}
				} while ( ( elem = elem.parentNode ) && elem.nodeType === 1 );
				return false;
			};
		} ),

		// Miscellaneous
		"target": function( elem ) {
			var hash = window.location && window.location.hash;
			return hash && hash.slice( 1 ) === elem.id;
		},

		"root": function( elem ) {
			return elem === docElem;
		},

		"focus": function( elem ) {
			return elem === document.activeElement &&
				( !document.hasFocus || document.hasFocus() ) &&
				!!( elem.type || elem.href || ~elem.tabIndex );
		},

		// Boolean properties
		"enabled": createDisabledPseudo( false ),
		"disabled": createDisabledPseudo( true ),

		"checked": function( elem ) {

			// In CSS3, :checked should return both checked and selected elements
			// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
			var nodeName = elem.nodeName.toLowerCase();
			return ( nodeName === "input" && !!elem.checked ) ||
				( nodeName === "option" && !!elem.selected );
		},

		"selected": function( elem ) {

			// Accessing this property makes selected-by-default
			// options in Safari work properly
			if ( elem.parentNode ) {
				// eslint-disable-next-line no-unused-expressions
				elem.parentNode.selectedIndex;
			}

			return elem.selected === true;
		},

		// Contents
		"empty": function( elem ) {

			// http://www.w3.org/TR/selectors/#empty-pseudo
			// :empty is negated by element (1) or content nodes (text: 3; cdata: 4; entity ref: 5),
			//   but not by others (comment: 8; processing instruction: 7; etc.)
			// nodeType < 6 works because attributes (2) do not appear as children
			for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
				if ( elem.nodeType < 6 ) {
					return false;
				}
			}
			return true;
		},

		"parent": function( elem ) {
			return !Expr.pseudos[ "empty" ]( elem );
		},

		// Element/input types
		"header": function( elem ) {
			return rheader.test( elem.nodeName );
		},

		"input": function( elem ) {
			return rinputs.test( elem.nodeName );
		},

		"button": function( elem ) {
			var name = elem.nodeName.toLowerCase();
			return name === "input" && elem.type === "button" || name === "button";
		},

		"text": function( elem ) {
			var attr;
			return elem.nodeName.toLowerCase() === "input" &&
				elem.type === "text" &&

				// Support: IE<8
				// New HTML5 attribute values (e.g., "search") appear with elem.type === "text"
				( ( attr = elem.getAttribute( "type" ) ) == null ||
					attr.toLowerCase() === "text" );
		},

		// Position-in-collection
		"first": createPositionalPseudo( function() {
			return [ 0 ];
		} ),

		"last": createPositionalPseudo( function( _matchIndexes, length ) {
			return [ length - 1 ];
		} ),

		"eq": createPositionalPseudo( function( _matchIndexes, length, argument ) {
			return [ argument < 0 ? argument + length : argument ];
		} ),

		"even": createPositionalPseudo( function( matchIndexes, length ) {
			var i = 0;
			for ( ; i < length; i += 2 ) {
				matchIndexes.push( i );
			}
			return matchIndexes;
		} ),

		"odd": createPositionalPseudo( function( matchIndexes, length ) {
			var i = 1;
			for ( ; i < length; i += 2 ) {
				matchIndexes.push( i );
			}
			return matchIndexes;
		} ),

		"lt": createPositionalPseudo( function( matchIndexes, length, argument ) {
			var i = argument < 0 ?
				argument + length :
				argument > length ?
					length :
					argument;
			for ( ; --i >= 0; ) {
				matchIndexes.push( i );
			}
			return matchIndexes;
		} ),

		"gt": createPositionalPseudo( function( matchIndexes, length, argument ) {
			var i = argument < 0 ? argument + length : argument;
			for ( ; ++i < length; ) {
				matchIndexes.push( i );
			}
			return matchIndexes;
		} )
	}
};

Expr.pseudos[ "nth" ] = Expr.pseudos[ "eq" ];

// Add button/input type pseudos
for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) {
	Expr.pseudos[ i ] = createInputPseudo( i );
}
for ( i in { submit: true, reset: true } ) {
	Expr.pseudos[ i ] = createButtonPseudo( i );
}

// Easy API for creating new setFilters
function setFilters() {}
setFilters.prototype = Expr.filters = Expr.pseudos;
Expr.setFilters = new setFilters();

tokenize = Sizzle.tokenize = function( selector, parseOnly ) {
	var matched, match, tokens, type,
		soFar, groups, preFilters,
		cached = tokenCache[ selector + " " ];

	if ( cached ) {
		return parseOnly ? 0 : cached.slice( 0 );
	}

	soFar = selector;
	groups = [];
	preFilters = Expr.preFilter;

	while ( soFar ) {

		// Comma and first run
		if ( !matched || ( match = rcomma.exec( soFar ) ) ) {
			if ( match ) {

				// Don't consume trailing commas as valid
				soFar = soFar.slice( match[ 0 ].length ) || soFar;
			}
			groups.push( ( tokens = [] ) );
		}

		matched = false;

		// Combinators
		if ( ( match = rcombinators.exec( soFar ) ) ) {
			matched = match.shift();
			tokens.push( {
				value: matched,

				// Cast descendant combinators to space
				type: match[ 0 ].replace( rtrim, " " )
			} );
			soFar = soFar.slice( matched.length );
		}

		// Filters
		for ( type in Expr.filter ) {
			if ( ( match = matchExpr[ type ].exec( soFar ) ) && ( !preFilters[ type ] ||
				( match = preFilters[ type ]( match ) ) ) ) {
				matched = match.shift();
				tokens.push( {
					value: matched,
					type: type,
					matches: match
				} );
				soFar = soFar.slice( matched.length );
			}
		}

		if ( !matched ) {
			break;
		}
	}

	// Return the length of the invalid excess
	// if we're just parsing
	// Otherwise, throw an error or return tokens
	return parseOnly ?
		soFar.length :
		soFar ?
			Sizzle.error( selector ) :

			// Cache the tokens
			tokenCache( selector, groups ).slice( 0 );
};

function toSelector( tokens ) {
	var i = 0,
		len = tokens.length,
		selector = "";
	for ( ; i < len; i++ ) {
		selector += tokens[ i ].value;
	}
	return selector;
}

function addCombinator( matcher, combinator, base ) {
	var dir = combinator.dir,
		skip = combinator.next,
		key = skip || dir,
		checkNonElements = base && key === "parentNode",
		doneName = done++;

	return combinator.first ?

		// Check against closest ancestor/preceding element
		function( elem, context, xml ) {
			while ( ( elem = elem[ dir ] ) ) {
				if ( elem.nodeType === 1 || checkNonElements ) {
					return matcher( elem, context, xml );
				}
			}
			return false;
		} :

		// Check against all ancestor/preceding elements
		function( elem, context, xml ) {
			var oldCache, uniqueCache, outerCache,
				newCache = [ dirruns, doneName ];

			// We can't set arbitrary data on XML nodes, so they don't benefit from combinator caching
			if ( xml ) {
				while ( ( elem = elem[ dir ] ) ) {
					if ( elem.nodeType === 1 || checkNonElements ) {
						if ( matcher( elem, context, xml ) ) {
							return true;
						}
					}
				}
			} else {
				while ( ( elem = elem[ dir ] ) ) {
					if ( elem.nodeType === 1 || checkNonElements ) {
						outerCache = elem[ expando ] || ( elem[ expando ] = {} );

						// Support: IE <9 only
						// Defend against cloned attroperties (jQuery gh-1709)
						uniqueCache = outerCache[ elem.uniqueID ] ||
							( outerCache[ elem.uniqueID ] = {} );

						if ( skip && skip === elem.nodeName.toLowerCase() ) {
							elem = elem[ dir ] || elem;
						} else if ( ( oldCache = uniqueCache[ key ] ) &&
							oldCache[ 0 ] === dirruns && oldCache[ 1 ] === doneName ) {

							// Assign to newCache so results back-propagate to previous elements
							return ( newCache[ 2 ] = oldCache[ 2 ] );
						} else {

							// Reuse newcache so results back-propagate to previous elements
							uniqueCache[ key ] = newCache;

							// A match means we're done; a fail means we have to keep checking
							if ( ( newCache[ 2 ] = matcher( elem, context, xml ) ) ) {
								return true;
							}
						}
					}
				}
			}
			return false;
		};
}

function elementMatcher( matchers ) {
	return matchers.length > 1 ?
		function( elem, context, xml ) {
			var i = matchers.length;
			while ( i-- ) {
				if ( !matchers[ i ]( elem, context, xml ) ) {
					return false;
				}
			}
			return true;
		} :
		matchers[ 0 ];
}

function multipleContexts( selector, contexts, results ) {
	var i = 0,
		len = contexts.length;
	for ( ; i < len; i++ ) {
		Sizzle( selector, contexts[ i ], results );
	}
	return results;
}

function condense( unmatched, map, filter, context, xml ) {
	var elem,
		newUnmatched = [],
		i = 0,
		len = unmatched.length,
		mapped = map != null;

	for ( ; i < len; i++ ) {
		if ( ( elem = unmatched[ i ] ) ) {
			if ( !filter || filter( elem, context, xml ) ) {
				newUnmatched.push( elem );
				if ( mapped ) {
					map.push( i );
				}
			}
		}
	}

	return newUnmatched;
}

function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) {
	if ( postFilter && !postFilter[ expando ] ) {
		postFilter = setMatcher( postFilter );
	}
	if ( postFinder && !postFinder[ expando ] ) {
		postFinder = setMatcher( postFinder, postSelector );
	}
	return markFunction( function( seed, results, context, xml ) {
		var temp, i, elem,
			preMap = [],
			postMap = [],
			preexisting = results.length,

			// Get initial elements from seed or context
			elems = seed || multipleContexts(
				selector || "*",
				context.nodeType ? [ context ] : context,
				[]
			),

			// Prefilter to get matcher input, preserving a map for seed-results synchronization
			matcherIn = preFilter && ( seed || !selector ) ?
				condense( elems, preMap, preFilter, context, xml ) :
				elems,

			matcherOut = matcher ?

				// If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results,
				postFinder || ( seed ? preFilter : preexisting || postFilter ) ?

					// ...intermediate processing is necessary
					[] :

					// ...otherwise use results directly
					results :
				matcherIn;

		// Find primary matches
		if ( matcher ) {
			matcher( matcherIn, matcherOut, context, xml );
		}

		// Apply postFilter
		if ( postFilter ) {
			temp = condense( matcherOut, postMap );
			postFilter( temp, [], context, xml );

			// Un-match failing elements by moving them back to matcherIn
			i = temp.length;
			while ( i-- ) {
				if ( ( elem = temp[ i ] ) ) {
					matcherOut[ postMap[ i ] ] = !( matcherIn[ postMap[ i ] ] = elem );
				}
			}
		}

		if ( seed ) {
			if ( postFinder || preFilter ) {
				if ( postFinder ) {

					// Get the final matcherOut by condensing this intermediate into postFinder contexts
					temp = [];
					i = matcherOut.length;
					while ( i-- ) {
						if ( ( elem = matcherOut[ i ] ) ) {

							// Restore matcherIn since elem is not yet a final match
							temp.push( ( matcherIn[ i ] = elem ) );
						}
					}
					postFinder( null, ( matcherOut = [] ), temp, xml );
				}

				// Move matched elements from seed to results to keep them synchronized
				i = matcherOut.length;
				while ( i-- ) {
					if ( ( elem = matcherOut[ i ] ) &&
						( temp = postFinder ? indexOf( seed, elem ) : preMap[ i ] ) > -1 ) {

						seed[ temp ] = !( results[ temp ] = elem );
					}
				}
			}

		// Add elements to results, through postFinder if defined
		} else {
			matcherOut = condense(
				matcherOut === results ?
					matcherOut.splice( preexisting, matcherOut.length ) :
					matcherOut
			);
			if ( postFinder ) {
				postFinder( null, results, matcherOut, xml );
			} else {
				push.apply( results, matcherOut );
			}
		}
	} );
}

function matcherFromTokens( tokens ) {
	var checkContext, matcher, j,
		len = tokens.length,
		leadingRelative = Expr.relative[ tokens[ 0 ].type ],
		implicitRelative = leadingRelative || Expr.relative[ " " ],
		i = leadingRelative ? 1 : 0,

		// The foundational matcher ensures that elements are reachable from top-level context(s)
		matchContext = addCombinator( function( elem ) {
			return elem === checkContext;
		}, implicitRelative, true ),
		matchAnyContext = addCombinator( function( elem ) {
			return indexOf( checkContext, elem ) > -1;
		}, implicitRelative, true ),
		matchers = [ function( elem, context, xml ) {
			var ret = ( !leadingRelative && ( xml || context !== outermostContext ) ) || (
				( checkContext = context ).nodeType ?
					matchContext( elem, context, xml ) :
					matchAnyContext( elem, context, xml ) );

			// Avoid hanging onto element (issue #299)
			checkContext = null;
			return ret;
		} ];

	for ( ; i < len; i++ ) {
		if ( ( matcher = Expr.relative[ tokens[ i ].type ] ) ) {
			matchers = [ addCombinator( elementMatcher( matchers ), matcher ) ];
		} else {
			matcher = Expr.filter[ tokens[ i ].type ].apply( null, tokens[ i ].matches );

			// Return special upon seeing a positional matcher
			if ( matcher[ expando ] ) {

				// Find the next relative operator (if any) for proper handling
				j = ++i;
				for ( ; j < len; j++ ) {
					if ( Expr.relative[ tokens[ j ].type ] ) {
						break;
					}
				}
				return setMatcher(
					i > 1 && elementMatcher( matchers ),
					i > 1 && toSelector(

					// If the preceding token was a descendant combinator, insert an implicit any-element `*`
					tokens
						.slice( 0, i - 1 )
						.concat( { value: tokens[ i - 2 ].type === " " ? "*" : "" } )
					).replace( rtrim, "$1" ),
					matcher,
					i < j && matcherFromTokens( tokens.slice( i, j ) ),
					j < len && matcherFromTokens( ( tokens = tokens.slice( j ) ) ),
					j < len && toSelector( tokens )
				);
			}
			matchers.push( matcher );
		}
	}

	return elementMatcher( matchers );
}

function matcherFromGroupMatchers( elementMatchers, setMatchers ) {
	var bySet = setMatchers.length > 0,
		byElement = elementMatchers.length > 0,
		superMatcher = function( seed, context, xml, results, outermost ) {
			var elem, j, matcher,
				matchedCount = 0,
				i = "0",
				unmatched = seed && [],
				setMatched = [],
				contextBackup = outermostContext,

				// We must always have either seed elements or outermost context
				elems = seed || byElement && Expr.find[ "TAG" ]( "*", outermost ),

				// Use integer dirruns iff this is the outermost matcher
				dirrunsUnique = ( dirruns += contextBackup == null ? 1 : Math.random() || 0.1 ),
				len = elems.length;

			if ( outermost ) {

				// Support: IE 11+, Edge 17 - 18+
				// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
				// two documents; shallow comparisons work.
				// eslint-disable-next-line eqeqeq
				outermostContext = context == document || context || outermost;
			}

			// Add elements passing elementMatchers directly to results
			// Support: IE<9, Safari
			// Tolerate NodeList properties (IE: "length"; Safari: <number>) matching elements by id
			for ( ; i !== len && ( elem = elems[ i ] ) != null; i++ ) {
				if ( byElement && elem ) {
					j = 0;

					// Support: IE 11+, Edge 17 - 18+
					// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
					// two documents; shallow comparisons work.
					// eslint-disable-next-line eqeqeq
					if ( !context && elem.ownerDocument != document ) {
						setDocument( elem );
						xml = !documentIsHTML;
					}
					while ( ( matcher = elementMatchers[ j++ ] ) ) {
						if ( matcher( elem, context || document, xml ) ) {
							results.push( elem );
							break;
						}
					}
					if ( outermost ) {
						dirruns = dirrunsUnique;
					}
				}

				// Track unmatched elements for set filters
				if ( bySet ) {

					// They will have gone through all possible matchers
					if ( ( elem = !matcher && elem ) ) {
						matchedCount--;
					}

					// Lengthen the array for every element, matched or not
					if ( seed ) {
						unmatched.push( elem );
					}
				}
			}

			// `i` is now the count of elements visited above, and adding it to `matchedCount`
			// makes the latter nonnegative.
			matchedCount += i;

			// Apply set filters to unmatched elements
			// NOTE: This can be skipped if there are no unmatched elements (i.e., `matchedCount`
			// equals `i`), unless we didn't visit _any_ elements in the above loop because we have
			// no element matchers and no seed.
			// Incrementing an initially-string "0" `i` allows `i` to remain a string only in that
			// case, which will result in a "00" `matchedCount` that differs from `i` but is also
			// numerically zero.
			if ( bySet && i !== matchedCount ) {
				j = 0;
				while ( ( matcher = setMatchers[ j++ ] ) ) {
					matcher( unmatched, setMatched, context, xml );
				}

				if ( seed ) {

					// Reintegrate element matches to eliminate the need for sorting
					if ( matchedCount > 0 ) {
						while ( i-- ) {
							if ( !( unmatched[ i ] || setMatched[ i ] ) ) {
								setMatched[ i ] = pop.call( results );
							}
						}
					}

					// Discard index placeholder values to get only actual matches
					setMatched = condense( setMatched );
				}

				// Add matches to results
				push.apply( results, setMatched );

				// Seedless set matches succeeding multiple successful matchers stipulate sorting
				if ( outermost && !seed && setMatched.length > 0 &&
					( matchedCount + setMatchers.length ) > 1 ) {

					Sizzle.uniqueSort( results );
				}
			}

			// Override manipulation of globals by nested matchers
			if ( outermost ) {
				dirruns = dirrunsUnique;
				outermostContext = contextBackup;
			}

			return unmatched;
		};

	return bySet ?
		markFunction( superMatcher ) :
		superMatcher;
}

compile = Sizzle.compile = function( selector, match /* Internal Use Only */ ) {
	var i,
		setMatchers = [],
		elementMatchers = [],
		cached = compilerCache[ selector + " " ];

	if ( !cached ) {

		// Generate a function of recursive functions that can be used to check each element
		if ( !match ) {
			match = tokenize( selector );
		}
		i = match.length;
		while ( i-- ) {
			cached = matcherFromTokens( match[ i ] );
			if ( cached[ expando ] ) {
				setMatchers.push( cached );
			} else {
				elementMatchers.push( cached );
			}
		}

		// Cache the compiled function
		cached = compilerCache(
			selector,
			matcherFromGroupMatchers( elementMatchers, setMatchers )
		);

		// Save selector and tokenization
		cached.selector = selector;
	}
	return cached;
};

/**
 * A low-level selection function that works with Sizzle's compiled
 *  selector functions
 * @param {String|Function} selector A selector or a pre-compiled
 *  selector function built with Sizzle.compile
 * @param {Element} context
 * @param {Array} [results]
 * @param {Array} [seed] A set of elements to match against
 */
select = Sizzle.select = function( selector, context, results, seed ) {
	var i, tokens, token, type, find,
		compiled = typeof selector === "function" && selector,
		match = !seed && tokenize( ( selector = compiled.selector || selector ) );

	results = results || [];

	// Try to minimize operations if there is only one selector in the list and no seed
	// (the latter of which guarantees us context)
	if ( match.length === 1 ) {

		// Reduce context if the leading compound selector is an ID
		tokens = match[ 0 ] = match[ 0 ].slice( 0 );
		if ( tokens.length > 2 && ( token = tokens[ 0 ] ).type === "ID" &&
			context.nodeType === 9 && documentIsHTML && Expr.relative[ tokens[ 1 ].type ] ) {

			context = ( Expr.find[ "ID" ]( token.matches[ 0 ]
				.replace( runescape, funescape ), context ) || [] )[ 0 ];
			if ( !context ) {
				return results;

			// Precompiled matchers will still verify ancestry, so step up a level
			} else if ( compiled ) {
				context = context.parentNode;
			}

			selector = selector.slice( tokens.shift().value.length );
		}

		// Fetch a seed set for right-to-left matching
		i = matchExpr[ "needsContext" ].test( selector ) ? 0 : tokens.length;
		while ( i-- ) {
			token = tokens[ i ];

			// Abort if we hit a combinator
			if ( Expr.relative[ ( type = token.type ) ] ) {
				break;
			}
			if ( ( find = Expr.find[ type ] ) ) {

				// Search, expanding context for leading sibling combinators
				if ( ( seed = find(
					token.matches[ 0 ].replace( runescape, funescape ),
					rsibling.test( tokens[ 0 ].type ) && testContext( context.parentNode ) ||
						context
				) ) ) {

					// If seed is empty or no tokens remain, we can return early
					tokens.splice( i, 1 );
					selector = seed.length && toSelector( tokens );
					if ( !selector ) {
						push.apply( results, seed );
						return results;
					}

					break;
				}
			}
		}
	}

	// Compile and execute a filtering function if one is not provided
	// Provide `match` to avoid retokenization if we modified the selector above
	( compiled || compile( selector, match ) )(
		seed,
		context,
		!documentIsHTML,
		results,
		!context || rsibling.test( selector ) && testContext( context.parentNode ) || context
	);
	return results;
};

// One-time assignments

// Sort stability
support.sortStable = expando.split( "" ).sort( sortOrder ).join( "" ) === expando;

// Support: Chrome 14-35+
// Always assume duplicates if they aren't passed to the comparison function
support.detectDuplicates = !!hasDuplicate;

// Initialize against the default document
setDocument();

// Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27)
// Detached nodes confoundingly follow *each other*
support.sortDetached = assert( function( el ) {

	// Should return 1, but returns 4 (following)
	return el.compareDocumentPosition( document.createElement( "fieldset" ) ) & 1;
} );

// Support: IE<8
// Prevent attribute/property "interpolation"
// https://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx
if ( !assert( function( el ) {
	el.innerHTML = "<a href='#'></a>";
	return el.firstChild.getAttribute( "href" ) === "#";
} ) ) {
	addHandle( "type|href|height|width", function( elem, name, isXML ) {
		if ( !isXML ) {
			return elem.getAttribute( name, name.toLowerCase() === "type" ? 1 : 2 );
		}
	} );
}

// Support: IE<9
// Use defaultValue in place of getAttribute("value")
if ( !support.attributes || !assert( function( el ) {
	el.innerHTML = "<input/>";
	el.firstChild.setAttribute( "value", "" );
	return el.firstChild.getAttribute( "value" ) === "";
} ) ) {
	addHandle( "value", function( elem, _name, isXML ) {
		if ( !isXML && elem.nodeName.toLowerCase() === "input" ) {
			return elem.defaultValue;
		}
	} );
}

// Support: IE<9
// Use getAttributeNode to fetch booleans when getAttribute lies
if ( !assert( function( el ) {
	return el.getAttribute( "disabled" ) == null;
} ) ) {
	addHandle( booleans, function( elem, name, isXML ) {
		var val;
		if ( !isXML ) {
			return elem[ name ] === true ? name.toLowerCase() :
				( val = elem.getAttributeNode( name ) ) && val.specified ?
					val.value :
					null;
		}
	} );
}

return Sizzle;

} )( window );



jQuery.find = Sizzle;
jQuery.expr = Sizzle.selectors;

// Deprecated
jQuery.expr[ ":" ] = jQuery.expr.pseudos;
jQuery.uniqueSort = jQuery.unique = Sizzle.uniqueSort;
jQuery.text = Sizzle.getText;
jQuery.isXMLDoc = Sizzle.isXML;
jQuery.contains = Sizzle.contains;
jQuery.escapeSelector = Sizzle.escape;




var dir = function( elem, dir, until ) {
	var matched = [],
		truncate = until !== undefined;

	while ( ( elem = elem[ dir ] ) && elem.nodeType !== 9 ) {
		if ( elem.nodeType === 1 ) {
			if ( truncate && jQuery( elem ).is( until ) ) {
				break;
			}
			matched.push( elem );
		}
	}
	return matched;
};


var siblings = function( n, elem ) {
	var matched = [];

	for ( ; n; n = n.nextSibling ) {
		if ( n.nodeType === 1 && n !== elem ) {
			matched.push( n );
		}
	}

	return matched;
};


var rneedsContext = jQuery.expr.match.needsContext;



function nodeName( elem, name ) {

  return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();

};
var rsingleTag = ( /^<([a-z][^\/\0>:\x20\t\r\n\f]*)[\x20\t\r\n\f]*\/?>(?:<\/\1>|)$/i );



// Implement the identical functionality for filter and not
function winnow( elements, qualifier, not ) {
	if ( isFunction( qualifier ) ) {
		return jQuery.grep( elements, function( elem, i ) {
			return !!qualifier.call( elem, i, elem ) !== not;
		} );
	}

	// Single element
	if ( qualifier.nodeType ) {
		return jQuery.grep( elements, function( elem ) {
			return ( elem === qualifier ) !== not;
		} );
	}

	// Arraylike of elements (jQuery, arguments, Array)
	if ( typeof qualifier !== "string" ) {
		return jQuery.grep( elements, function( elem ) {
			return ( indexOf.call( qualifier, elem ) > -1 ) !== not;
		} );
	}

	// Filtered directly for both simple and complex selectors
	return jQuery.filter( qualifier, elements, not );
}

jQuery.filter = function( expr, elems, not ) {
	var elem = elems[ 0 ];

	if ( not ) {
		expr = ":not(" + expr + ")";
	}

	if ( elems.length === 1 && elem.nodeType === 1 ) {
		return jQuery.find.matchesSelector( elem, expr ) ? [ elem ] : [];
	}

	return jQuery.find.matches( expr, jQuery.grep( elems, function( elem ) {
		return elem.nodeType === 1;
	} ) );
};

jQuery.fn.extend( {
	find: function( selector ) {
		var i, ret,
			len = this.length,
			self = this;

		if ( typeof selector !== "string" ) {
			return this.pushStack( jQuery( selector ).filter( function() {
				for ( i = 0; i < len; i++ ) {
					if ( jQuery.contains( self[ i ], this ) ) {
						return true;
					}
				}
			} ) );
		}

		ret = this.pushStack( [] );

		for ( i = 0; i < len; i++ ) {
			jQuery.find( selector, self[ i ], ret );
		}

		return len > 1 ? jQuery.uniqueSort( ret ) : ret;
	},
	filter: function( selector ) {
		return this.pushStack( winnow( this, selector || [], false ) );
	},
	not: function( selector ) {
		return this.pushStack( winnow( this, selector || [], true ) );
	},
	is: function( selector ) {
		return !!winnow(
			this,

			// If this is a positional/relative selector, check membership in the returned set
			// so $("p:first").is("p:last") won't return true for a doc with two "p".
			typeof selector === "string" && rneedsContext.test( selector ) ?
				jQuery( selector ) :
				selector || [],
			false
		).length;
	}
} );


// Initialize a jQuery object


// A central reference to the root jQuery(document)
var rootjQuery,

	// A simple way to check for HTML strings
	// Prioritize #id over <tag> to avoid XSS via location.hash (#9521)
	// Strict HTML recognition (#11290: must start with <)
	// Shortcut simple #id case for speed
	rquickExpr = /^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]+))$/,

	init = jQuery.fn.init = function( selector, context, root ) {
		var match, elem;

		// HANDLE: $(""), $(null), $(undefined), $(false)
		if ( !selector ) {
			return this;
		}

		// Method init() accepts an alternate rootjQuery
		// so migrate can support jQuery.sub (gh-2101)
		root = root || rootjQuery;

		// Handle HTML strings
		if ( typeof selector === "string" ) {
			if ( selector[ 0 ] === "<" &&
				selector[ selector.length - 1 ] === ">" &&
				selector.length >= 3 ) {

				// Assume that strings that start and end with <> are HTML and skip the regex check
				match = [ null, selector, null ];

			} else {
				match = rquickExpr.exec( selector );
			}

			// Match html or make sure no context is specified for #id
			if ( match && ( match[ 1 ] || !context ) ) {

				// HANDLE: $(html) -> $(array)
				if ( match[ 1 ] ) {
					context = context instanceof jQuery ? context[ 0 ] : context;

					// Option to run scripts is true for back-compat
					// Intentionally let the error be thrown if parseHTML is not present
					jQuery.merge( this, jQuery.parseHTML(
						match[ 1 ],
						context && context.nodeType ? context.ownerDocument || context : document,
						true
					) );

					// HANDLE: $(html, props)
					if ( rsingleTag.test( match[ 1 ] ) && jQuery.isPlainObject( context ) ) {
						for ( match in context ) {

							// Properties of context are called as methods if possible
							if ( isFunction( this[ match ] ) ) {
								this[ match ]( context[ match ] );

							// ...and otherwise set as attributes
							} else {
								this.attr( match, context[ match ] );
							}
						}
					}

					return this;

				// HANDLE: $(#id)
				} else {
					elem = document.getElementById( match[ 2 ] );

					if ( elem ) {

						// Inject the element directly into the jQuery object
						this[ 0 ] = elem;
						this.length = 1;
					}
					return this;
				}

			// HANDLE: $(expr, $(...))
			} else if ( !context || context.jquery ) {
				return ( context || root ).find( selector );

			// HANDLE: $(expr, context)
			// (which is just equivalent to: $(context).find(expr)
			} else {
				return this.constructor( context ).find( selector );
			}

		// HANDLE: $(DOMElement)
		} else if ( selector.nodeType ) {
			this[ 0 ] = selector;
			this.length = 1;
			return this;

		// HANDLE: $(function)
		// Shortcut for document ready
		} else if ( isFunction( selector ) ) {
			return root.ready !== undefined ?
				root.ready( selector ) :

				// Execute immediately if ready is not present
				selector( jQuery );
		}

		return jQuery.makeArray( selector, this );
	};

// Give the init function the jQuery prototype for later instantiation
init.prototype = jQuery.fn;

// Initialize central reference
rootjQuery = jQuery( document );


var rparentsprev = /^(?:parents|prev(?:Until|All))/,

	// Methods guaranteed to produce a unique set when starting from a unique set
	guaranteedUnique = {
		children: true,
		contents: true,
		next: true,
		prev: true
	};

jQuery.fn.extend( {
	has: function( target ) {
		var targets = jQuery( target, this ),
			l = targets.length;

		return this.filter( function() {
			var i = 0;
			for ( ; i < l; i++ ) {
				if ( jQuery.contains( this, targets[ i ] ) ) {
					return true;
				}
			}
		} );
	},

	closest: function( selectors, context ) {
		var cur,
			i = 0,
			l = this.length,
			matched = [],
			targets = typeof selectors !== "string" && jQuery( selectors );

		// Positional selectors never match, since there's no _selection_ context
		if ( !rneedsContext.test( selectors ) ) {
			for ( ; i < l; i++ ) {
				for ( cur = this[ i ]; cur && cur !== context; cur = cur.parentNode ) {

					// Always skip document fragments
					if ( cur.nodeType < 11 && ( targets ?
						targets.index( cur ) > -1 :

						// Don't pass non-elements to Sizzle
						cur.nodeType === 1 &&
							jQuery.find.matchesSelector( cur, selectors ) ) ) {

						matched.push( cur );
						break;
					}
				}
			}
		}

		return this.pushStack( matched.length > 1 ? jQuery.uniqueSort( matched ) : matched );
	},

	// Determine the position of an element within the set
	index: function( elem ) {

		// No argument, return index in parent
		if ( !elem ) {
			return ( this[ 0 ] && this[ 0 ].parentNode ) ? this.first().prevAll().length : -1;
		}

		// Index in selector
		if ( typeof elem === "string" ) {
			return indexOf.call( jQuery( elem ), this[ 0 ] );
		}

		// Locate the position of the desired element
		return indexOf.call( this,

			// If it receives a jQuery object, the first element is used
			elem.jquery ? elem[ 0 ] : elem
		);
	},

	add: function( selector, context ) {
		return this.pushStack(
			jQuery.uniqueSort(
				jQuery.merge( this.get(), jQuery( selector, context ) )
			)
		);
	},

	addBack: function( selector ) {
		return this.add( selector == null ?
			this.prevObject : this.prevObject.filter( selector )
		);
	}
} );

function sibling( cur, dir ) {
	while ( ( cur = cur[ dir ] ) && cur.nodeType !== 1 ) {}
	return cur;
}

jQuery.each( {
	parent: function( elem ) {
		var parent = elem.parentNode;
		return parent && parent.nodeType !== 11 ? parent : null;
	},
	parents: function( elem ) {
		return dir( elem, "parentNode" );
	},
	parentsUntil: function( elem, _i, until ) {
		return dir( elem, "parentNode", until );
	},
	next: function( elem ) {
		return sibling( elem, "nextSibling" );
	},
	prev: function( elem ) {
		return sibling( elem, "previousSibling" );
	},
	nextAll: function( elem ) {
		return dir( elem, "nextSibling" );
	},
	prevAll: function( elem ) {
		return dir( elem, "previousSibling" );
	},
	nextUntil: function( elem, _i, until ) {
		return dir( elem, "nextSibling", until );
	},
	prevUntil: function( elem, _i, until ) {
		return dir( elem, "previousSibling", until );
	},
	siblings: function( elem ) {
		return siblings( ( elem.parentNode || {} ).firstChild, elem );
	},
	children: function( elem ) {
		return siblings( elem.firstChild );
	},
	contents: function( elem ) {
		if ( elem.contentDocument != null &&

			// Support: IE 11+
			// <object> elements with no `data` attribute has an object
			// `contentDocument` with a `null` prototype.
			getProto( elem.contentDocument ) ) {

			return elem.contentDocument;
		}

		// Support: IE 9 - 11 only, iOS 7 only, Android Browser <=4.3 only
		// Treat the template element as a regular one in browsers that
		// don't support it.
		if ( nodeName( elem, "template" ) ) {
			elem = elem.content || elem;
		}

		return jQuery.merge( [], elem.childNodes );
	}
}, function( name, fn ) {
	jQuery.fn[ name ] = function( until, selector ) {
		var matched = jQuery.map( this, fn, until );

		if ( name.slice( -5 ) !== "Until" ) {
			selector = until;
		}

		if ( selector && typeof selector === "string" ) {
			matched = jQuery.filter( selector, matched );
		}

		if ( this.length > 1 ) {

			// Remove duplicates
			if ( !guaranteedUnique[ name ] ) {
				jQuery.uniqueSort( matched );
			}

			// Reverse order for parents* and prev-derivatives
			if ( rparentsprev.test( name ) ) {
				matched.reverse();
			}
		}

		return this.pushStack( matched );
	};
} );
var rnothtmlwhite = ( /[^\x20\t\r\n\f]+/g );



// Convert String-formatted options into Object-formatted ones
function createOptions( options ) {
	var object = {};
	jQuery.each( options.match( rnothtmlwhite ) || [], function( _, flag ) {
		object[ flag ] = true;
	} );
	return object;
}

/*
 * Create a callback list using the following parameters:
 *
 *	options: an optional list of space-separated options that will change how
 *			the callback list behaves or a more traditional option object
 *
 * By default a callback list will act like an event callback list and can be
 * "fired" multiple times.
 *
 * Possible options:
 *
 *	once:			will ensure the callback list can only be fired once (like a Deferred)
 *
 *	memory:			will keep track of previous values and will call any callback added
 *					after the list has been fired right away with the latest "memorized"
 *					values (like a Deferred)
 *
 *	unique:			will ensure a callback can only be added once (no duplicate in the list)
 *
 *	stopOnFalse:	interrupt callings when a callback returns false
 *
 */
jQuery.Callbacks = function( options ) {

	// Convert options from String-formatted to Object-formatted if needed
	// (we check in cache first)
	options = typeof options === "string" ?
		createOptions( options ) :
		jQuery.extend( {}, options );

	var // Flag to know if list is currently firing
		firing,

		// Last fire value for non-forgettable lists
		memory,

		// Flag to know if list was already fired
		fired,

		// Flag to prevent firing
		locked,

		// Actual callback list
		list = [],

		// Queue of execution data for repeatable lists
		queue = [],

		// Index of currently firing callback (modified by add/remove as needed)
		firingIndex = -1,

		// Fire callbacks
		fire = function() {

			// Enforce single-firing
			locked = locked || options.once;

			// Execute callbacks for all pending executions,
			// respecting firingIndex overrides and runtime changes
			fired = firing = true;
			for ( ; queue.length; firingIndex = -1 ) {
				memory = queue.shift();
				while ( ++firingIndex < list.length ) {

					// Run callback and check for early termination
					if ( list[ firingIndex ].apply( memory[ 0 ], memory[ 1 ] ) === false &&
						options.stopOnFalse ) {

						// Jump to end and forget the data so .add doesn't re-fire
						firingIndex = list.length;
						memory = false;
					}
				}
			}

			// Forget the data if we're done with it
			if ( !options.memory ) {
				memory = false;
			}

			firing = false;

			// Clean up if we're done firing for good
			if ( locked ) {

				// Keep an empty list if we have data for future add calls
				if ( memory ) {
					list = [];

				// Otherwise, this object is spent
				} else {
					list = "";
				}
			}
		},

		// Actual Callbacks object
		self = {

			// Add a callback or a collection of callbacks to the list
			add: function() {
				if ( list ) {

					// If we have memory from a past run, we should fire after adding
					if ( memory && !firing ) {
						firingIndex = list.length - 1;
						queue.push( memory );
					}

					( function add( args ) {
						jQuery.each( args, function( _, arg ) {
							if ( isFunction( arg ) ) {
								if ( !options.unique || !self.has( arg ) ) {
									list.push( arg );
								}
							} else if ( arg && arg.length && toType( arg ) !== "string" ) {

								// Inspect recursively
								add( arg );
							}
						} );
					} )( arguments );

					if ( memory && !firing ) {
						fire();
					}
				}
				return this;
			},

			// Remove a callback from the list
			remove: function() {
				jQuery.each( arguments, function( _, arg ) {
					var index;
					while ( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) {
						list.splice( index, 1 );

						// Handle firing indexes
						if ( index <= firingIndex ) {
							firingIndex--;
						}
					}
				} );
				return this;
			},

			// Check if a given callback is in the list.
			// If no argument is given, return whether or not list has callbacks attached.
			has: function( fn ) {
				return fn ?
					jQuery.inArray( fn, list ) > -1 :
					list.length > 0;
			},

			// Remove all callbacks from the list
			empty: function() {
				if ( list ) {
					list = [];
				}
				return this;
			},

			// Disable .fire and .add
			// Abort any current/pending executions
			// Clear all callbacks and values
			disable: function() {
				locked = queue = [];
				list = memory = "";
				return this;
			},
			disabled: function() {
				return !list;
			},

			// Disable .fire
			// Also disable .add unless we have memory (since it would have no effect)
			// Abort any pending executions
			lock: function() {
				locked = queue = [];
				if ( !memory && !firing ) {
					list = memory = "";
				}
				return this;
			},
			locked: function() {
				return !!locked;
			},

			// Call all callbacks with the given context and arguments
			fireWith: function( context, args ) {
				if ( !locked ) {
					args = args || [];
					args = [ context, args.slice ? args.slice() : args ];
					queue.push( args );
					if ( !firing ) {
						fire();
					}
				}
				return this;
			},

			// Call all the callbacks with the given arguments
			fire: function() {
				self.fireWith( this, arguments );
				return this;
			},

			// To know if the callbacks have already been called at least once
			fired: function() {
				return !!fired;
			}
		};

	return self;
};


function Identity( v ) {
	return v;
}
function Thrower( ex ) {
	throw ex;
}

function adoptValue( value, resolve, reject, noValue ) {
	var method;

	try {

		// Check for promise aspect first to privilege synchronous behavior
		if ( value && isFunction( ( method = value.promise ) ) ) {
			method.call( value ).done( resolve ).fail( reject );

		// Other thenables
		} else if ( value && isFunction( ( method = value.then ) ) ) {
			method.call( value, resolve, reject );

		// Other non-thenables
		} else {

			// Control `resolve` arguments by letting Array#slice cast boolean `noValue` to integer:
			// * false: [ value ].slice( 0 ) => resolve( value )
			// * true: [ value ].slice( 1 ) => resolve()
			resolve.apply( undefined, [ value ].slice( noValue ) );
		}

	// For Promises/A+, convert exceptions into rejections
	// Since jQuery.when doesn't unwrap thenables, we can skip the extra checks appearing in
	// Deferred#then to conditionally suppress rejection.
	} catch ( value ) {

		// Support: Android 4.0 only
		// Strict mode functions invoked without .call/.apply get global-object context
		reject.apply( undefined, [ value ] );
	}
}

jQuery.extend( {

	Deferred: function( func ) {
		var tuples = [

				// action, add listener, callbacks,
				// ... .then handlers, argument index, [final state]
				[ "notify", "progress", jQuery.Callbacks( "memory" ),
					jQuery.Callbacks( "memory" ), 2 ],
				[ "resolve", "done", jQuery.Callbacks( "once memory" ),
					jQuery.Callbacks( "once memory" ), 0, "resolved" ],
				[ "reject", "fail", jQuery.Callbacks( "once memory" ),
					jQuery.Callbacks( "once memory" ), 1, "rejected" ]
			],
			state = "pending",
			promise = {
				state: function() {
					return state;
				},
				always: function() {
					deferred.done( arguments ).fail( arguments );
					return this;
				},
				"catch": function( fn ) {
					return promise.then( null, fn );
				},

				// Keep pipe for back-compat
				pipe: function( /* fnDone, fnFail, fnProgress */ ) {
					var fns = arguments;

					return jQuery.Deferred( function( newDefer ) {
						jQuery.each( tuples, function( _i, tuple ) {

							// Map tuples (progress, done, fail) to arguments (done, fail, progress)
							var fn = isFunction( fns[ tuple[ 4 ] ] ) && fns[ tuple[ 4 ] ];

							// deferred.progress(function() { bind to newDefer or newDefer.notify })
							// deferred.done(function() { bind to newDefer or newDefer.resolve })
							// deferred.fail(function() { bind to newDefer or newDefer.reject })
							deferred[ tuple[ 1 ] ]( function() {
								var returned = fn && fn.apply( this, arguments );
								if ( returned && isFunction( returned.promise ) ) {
									returned.promise()
										.progress( newDefer.notify )
										.done( newDefer.resolve )
										.fail( newDefer.reject );
								} else {
									newDefer[ tuple[ 0 ] + "With" ](
										this,
										fn ? [ returned ] : arguments
									);
								}
							} );
						} );
						fns = null;
					} ).promise();
				},
				then: function( onFulfilled, onRejected, onProgress ) {
					var maxDepth = 0;
					function resolve( depth, deferred, handler, special ) {
						return function() {
							var that = this,
								args = arguments,
								mightThrow = function() {
									var returned, then;

									// Support: Promises/A+ section 2.3.3.3.3
									// https://promisesaplus.com/#point-59
									// Ignore double-resolution attempts
									if ( depth < maxDepth ) {
										return;
									}

									returned = handler.apply( that, args );

									// Support: Promises/A+ section 2.3.1
									// https://promisesaplus.com/#point-48
									if ( returned === deferred.promise() ) {
										throw new TypeError( "Thenable self-resolution" );
									}

									// Support: Promises/A+ sections 2.3.3.1, 3.5
									// https://promisesaplus.com/#point-54
									// https://promisesaplus.com/#point-75
									// Retrieve `then` only once
									then = returned &&

										// Support: Promises/A+ section 2.3.4
										// https://promisesaplus.com/#point-64
										// Only check objects and functions for thenability
										( typeof returned === "object" ||
											typeof returned === "function" ) &&
										returned.then;

									// Handle a returned thenable
									if ( isFunction( then ) ) {

										// Special processors (notify) just wait for resolution
										if ( special ) {
											then.call(
												returned,
												resolve( maxDepth, deferred, Identity, special ),
												resolve( maxDepth, deferred, Thrower, special )
											);

										// Normal processors (resolve) also hook into progress
										} else {

											// ...and disregard older resolution values
											maxDepth++;

											then.call(
												returned,
												resolve( maxDepth, deferred, Identity, special ),
												resolve( maxDepth, deferred, Thrower, special ),
												resolve( maxDepth, deferred, Identity,
													deferred.notifyWith )
											);
										}

									// Handle all other returned values
									} else {

										// Only substitute handlers pass on context
										// and multiple values (non-spec behavior)
										if ( handler !== Identity ) {
											that = undefined;
											args = [ returned ];
										}

										// Process the value(s)
										// Default process is resolve
										( special || deferred.resolveWith )( that, args );
									}
								},

								// Only normal processors (resolve) catch and reject exceptions
								process = special ?
									mightThrow :
									function() {
										try {
											mightThrow();
										} catch ( e ) {

											if ( jQuery.Deferred.exceptionHook ) {
												jQuery.Deferred.exceptionHook( e,
													process.stackTrace );
											}

											// Support: Promises/A+ section 2.3.3.3.4.1
											// https://promisesaplus.com/#point-61
											// Ignore post-resolution exceptions
											if ( depth + 1 >= maxDepth ) {

												// Only substitute handlers pass on context
												// and multiple values (non-spec behavior)
												if ( handler !== Thrower ) {
													that = undefined;
													args = [ e ];
												}

												deferred.rejectWith( that, args );
											}
										}
									};

							// Support: Promises/A+ section 2.3.3.3.1
							// https://promisesaplus.com/#point-57
							// Re-resolve promises immediately to dodge false rejection from
							// subsequent errors
							if ( depth ) {
								process();
							} else {

								// Call an optional hook to record the stack, in case of exception
								// since it's otherwise lost when execution goes async
								if ( jQuery.Deferred.getStackHook ) {
									process.stackTrace = jQuery.Deferred.getStackHook();
								}
								window.setTimeout( process );
							}
						};
					}

					return jQuery.Deferred( function( newDefer ) {

						// progress_handlers.add( ... )
						tuples[ 0 ][ 3 ].add(
							resolve(
								0,
								newDefer,
								isFunction( onProgress ) ?
									onProgress :
									Identity,
								newDefer.notifyWith
							)
						);

						// fulfilled_handlers.add( ... )
						tuples[ 1 ][ 3 ].add(
							resolve(
								0,
								newDefer,
								isFunction( onFulfilled ) ?
									onFulfilled :
									Identity
							)
						);

						// rejected_handlers.add( ... )
						tuples[ 2 ][ 3 ].add(
							resolve(
								0,
								newDefer,
								isFunction( onRejected ) ?
									onRejected :
									Thrower
							)
						);
					} ).promise();
				},

				// Get a promise for this deferred
				// If obj is provided, the promise aspect is added to the object
				promise: function( obj ) {
					return obj != null ? jQuery.extend( obj, promise ) : promise;
				}
			},
			deferred = {};

		// Add list-specific methods
		jQuery.each( tuples, function( i, tuple ) {
			var list = tuple[ 2 ],
				stateString = tuple[ 5 ];

			// promise.progress = list.add
			// promise.done = list.add
			// promise.fail = list.add
			promise[ tuple[ 1 ] ] = list.add;

			// Handle state
			if ( stateString ) {
				list.add(
					function() {

						// state = "resolved" (i.e., fulfilled)
						// state = "rejected"
						state = stateString;
					},

					// rejected_callbacks.disable
					// fulfilled_callbacks.disable
					tuples[ 3 - i ][ 2 ].disable,

					// rejected_handlers.disable
					// fulfilled_handlers.disable
					tuples[ 3 - i ][ 3 ].disable,

					// progress_callbacks.lock
					tuples[ 0 ][ 2 ].lock,

					// progress_handlers.lock
					tuples[ 0 ][ 3 ].lock
				);
			}

			// progress_handlers.fire
			// fulfilled_handlers.fire
			// rejected_handlers.fire
			list.add( tuple[ 3 ].fire );

			// deferred.notify = function() { deferred.notifyWith(...) }
			// deferred.resolve = function() { deferred.resolveWith(...) }
			// deferred.reject = function() { deferred.rejectWith(...) }
			deferred[ tuple[ 0 ] ] = function() {
				deferred[ tuple[ 0 ] + "With" ]( this === deferred ? undefined : this, arguments );
				return this;
			};

			// deferred.notifyWith = list.fireWith
			// deferred.resolveWith = list.fireWith
			// deferred.rejectWith = list.fireWith
			deferred[ tuple[ 0 ] + "With" ] = list.fireWith;
		} );

		// Make the deferred a promise
		promise.promise( deferred );

		// Call given func if any
		if ( func ) {
			func.call( deferred, deferred );
		}

		// All done!
		return deferred;
	},

	// Deferred helper
	when: function( singleValue ) {
		var

			// count of uncompleted subordinates
			remaining = arguments.length,

			// count of unprocessed arguments
			i = remaining,

			// subordinate fulfillment data
			resolveContexts = Array( i ),
			resolveValues = slice.call( arguments ),

			// the master Deferred
			master = jQuery.Deferred(),

			// subordinate callback factory
			updateFunc = function( i ) {
				return function( value ) {
					resolveContexts[ i ] = this;
					resolveValues[ i ] = arguments.length > 1 ? slice.call( arguments ) : value;
					if ( !( --remaining ) ) {
						master.resolveWith( resolveContexts, resolveValues );
					}
				};
			};

		// Single- and empty arguments are adopted like Promise.resolve
		if ( remaining <= 1 ) {
			adoptValue( singleValue, master.done( updateFunc( i ) ).resolve, master.reject,
				!remaining );

			// Use .then() to unwrap secondary thenables (cf. gh-3000)
			if ( master.state() === "pending" ||
				isFunction( resolveValues[ i ] && resolveValues[ i ].then ) ) {

				return master.then();
			}
		}

		// Multiple arguments are aggregated like Promise.all array elements
		while ( i-- ) {
			adoptValue( resolveValues[ i ], updateFunc( i ), master.reject );
		}

		return master.promise();
	}
} );


// These usually indicate a programmer mistake during development,
// warn about them ASAP rather than swallowing them by default.
var rerrorNames = /^(Eval|Internal|Range|Reference|Syntax|Type|URI)Error$/;

jQuery.Deferred.exceptionHook = function( error, stack ) {

	// Support: IE 8 - 9 only
	// Console exists when dev tools are open, which can happen at any time
	if ( window.console && window.console.warn && error && rerrorNames.test( error.name ) ) {
		window.console.warn( "jQuery.Deferred exception: " + error.message, error.stack, stack );
	}
};




jQuery.readyException = function( error ) {
	window.setTimeout( function() {
		throw error;
	} );
};




// The deferred used on DOM ready
var readyList = jQuery.Deferred();

jQuery.fn.ready = function( fn ) {

	readyList
		.then( fn )

		// Wrap jQuery.readyException in a function so that the lookup
		// happens at the time of error handling instead of callback
		// registration.
		.catch( function( error ) {
			jQuery.readyException( error );
		} );

	return this;
};

jQuery.extend( {

	// Is the DOM ready to be used? Set to true once it occurs.
	isReady: false,

	// A counter to track how many items to wait for before
	// the ready event fires. See #6781
	readyWait: 1,

	// Handle when the DOM is ready
	ready: function( wait ) {

		// Abort if there are pending holds or we're already ready
		if ( wait === true ? --jQuery.readyWait : jQuery.isReady ) {
			return;
		}

		// Remember that the DOM is ready
		jQuery.isReady = true;

		// If a normal DOM Ready event fired, decrement, and wait if need be
		if ( wait !== true && --jQuery.readyWait > 0 ) {
			return;
		}

		// If there are functions bound, to execute
		readyList.resolveWith( document, [ jQuery ] );
	}
} );

jQuery.ready.then = readyList.then;

// The ready event handler and self cleanup method
function completed() {
	document.removeEventListener( "DOMContentLoaded", completed );
	window.removeEventListener( "load", completed );
	jQuery.ready();
}

// Catch cases where $(document).ready() is called
// after the browser event has already occurred.
// Support: IE <=9 - 10 only
// Older IE sometimes signals "interactive" too soon
if ( document.readyState === "complete" ||
	( document.readyState !== "loading" && !document.documentElement.doScroll ) ) {

	// Handle it asynchronously to allow scripts the opportunity to delay ready
	window.setTimeout( jQuery.ready );

} else {

	// Use the handy event callback
	document.addEventListener( "DOMContentLoaded", completed );

	// A fallback to window.onload, that will always work
	window.addEventListener( "load", completed );
}




// Multifunctional method to get and set values of a collection
// The value/s can optionally be executed if it's a function
var access = function( elems, fn, key, value, chainable, emptyGet, raw ) {
	var i = 0,
		len = elems.length,
		bulk = key == null;

	// Sets many values
	if ( toType( key ) === "object" ) {
		chainable = true;
		for ( i in key ) {
			access( elems, fn, i, key[ i ], true, emptyGet, raw );
		}

	// Sets one value
	} else if ( value !== undefined ) {
		chainable = true;

		if ( !isFunction( value ) ) {
			raw = true;
		}

		if ( bulk ) {

			// Bulk operations run against the entire set
			if ( raw ) {
				fn.call( elems, value );
				fn = null;

			// ...except when executing function values
			} else {
				bulk = fn;
				fn = function( elem, _key, value ) {
					return bulk.call( jQuery( elem ), value );
				};
			}
		}

		if ( fn ) {
			for ( ; i < len; i++ ) {
				fn(
					elems[ i ], key, raw ?
					value :
					value.call( elems[ i ], i, fn( elems[ i ], key ) )
				);
			}
		}
	}

	if ( chainable ) {
		return elems;
	}

	// Gets
	if ( bulk ) {
		return fn.call( elems );
	}

	return len ? fn( elems[ 0 ], key ) : emptyGet;
};


// Matches dashed string for camelizing
var rmsPrefix = /^-ms-/,
	rdashAlpha = /-([a-z])/g;

// Used by camelCase as callback to replace()
function fcamelCase( _all, letter ) {
	return letter.toUpperCase();
}

// Convert dashed to camelCase; used by the css and data modules
// Support: IE <=9 - 11, Edge 12 - 15
// Microsoft forgot to hump their vendor prefix (#9572)
function camelCase( string ) {
	return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase );
}
var acceptData = function( owner ) {

	// Accepts only:
	//  - Node
	//    - Node.ELEMENT_NODE
	//    - Node.DOCUMENT_NODE
	//  - Object
	//    - Any
	return owner.nodeType === 1 || owner.nodeType === 9 || !( +owner.nodeType );
};




function Data() {
	this.expando = jQuery.expando + Data.uid++;
}

Data.uid = 1;

Data.prototype = {

	cache: function( owner ) {

		// Check if the owner object already has a cache
		var value = owner[ this.expando ];

		// If not, create one
		if ( !value ) {
			value = {};

			// We can accept data for non-element nodes in modern browsers,
			// but we should not, see #8335.
			// Always return an empty object.
			if ( acceptData( owner ) ) {

				// If it is a node unlikely to be stringify-ed or looped over
				// use plain assignment
				if ( owner.nodeType ) {
					owner[ this.expando ] = value;

				// Otherwise secure it in a non-enumerable property
				// configurable must be true to allow the property to be
				// deleted when data is removed
				} else {
					Object.defineProperty( owner, this.expando, {
						value: value,
						configurable: true
					} );
				}
			}
		}

		return value;
	},
	set: function( owner, data, value ) {
		var prop,
			cache = this.cache( owner );

		// Handle: [ owner, key, value ] args
		// Always use camelCase key (gh-2257)
		if ( typeof data === "string" ) {
			cache[ camelCase( data ) ] = value;

		// Handle: [ owner, { properties } ] args
		} else {

			// Copy the properties one-by-one to the cache object
			for ( prop in data ) {
				cache[ camelCase( prop ) ] = data[ prop ];
			}
		}
		return cache;
	},
	get: function( owner, key ) {
		return key === undefined ?
			this.cache( owner ) :

			// Always use camelCase key (gh-2257)
			owner[ this.expando ] && owner[ this.expando ][ camelCase( key ) ];
	},
	access: function( owner, key, value ) {

		// In cases where either:
		//
		//   1. No key was specified
		//   2. A string key was specified, but no value provided
		//
		// Take the "read" path and allow the get method to determine
		// which value to return, respectively either:
		//
		//   1. The entire cache object
		//   2. The data stored at the key
		//
		if ( key === undefined ||
				( ( key && typeof key === "string" ) && value === undefined ) ) {

			return this.get( owner, key );
		}

		// When the key is not a string, or both a key and value
		// are specified, set or extend (existing objects) with either:
		//
		//   1. An object of properties
		//   2. A key and value
		//
		this.set( owner, key, value );

		// Since the "set" path can have two possible entry points
		// return the expected data based on which path was taken[*]
		return value !== undefined ? value : key;
	},
	remove: function( owner, key ) {
		var i,
			cache = owner[ this.expando ];

		if ( cache === undefined ) {
			return;
		}

		if ( key !== undefined ) {

			// Support array or space separated string of keys
			if ( Array.isArray( key ) ) {

				// If key is an array of keys...
				// We always set camelCase keys, so remove that.
				key = key.map( camelCase );
			} else {
				key = camelCase( key );

				// If a key with the spaces exists, use it.
				// Otherwise, create an array by matching non-whitespace
				key = key in cache ?
					[ key ] :
					( key.match( rnothtmlwhite ) || [] );
			}

			i = key.length;

			while ( i-- ) {
				delete cache[ key[ i ] ];
			}
		}

		// Remove the expando if there's no more data
		if ( key === undefined || jQuery.isEmptyObject( cache ) ) {

			// Support: Chrome <=35 - 45
			// Webkit & Blink performance suffers when deleting properties
			// from DOM nodes, so set to undefined instead
			// https://bugs.chromium.org/p/chromium/issues/detail?id=378607 (bug restricted)
			if ( owner.nodeType ) {
				owner[ this.expando ] = undefined;
			} else {
				delete owner[ this.expando ];
			}
		}
	},
	hasData: function( owner ) {
		var cache = owner[ this.expando ];
		return cache !== undefined && !jQuery.isEmptyObject( cache );
	}
};
var dataPriv = new Data();

var dataUser = new Data();



//	Implementation Summary
//
//	1. Enforce API surface and semantic compatibility with 1.9.x branch
//	2. Improve the module's maintainability by reducing the storage
//		paths to a single mechanism.
//	3. Use the same single mechanism to support "private" and "user" data.
//	4. _Never_ expose "private" data to user code (TODO: Drop _data, _removeData)
//	5. Avoid exposing implementation details on user objects (eg. expando properties)
//	6. Provide a clear path for implementation upgrade to WeakMap in 2014

var rbrace = /^(?:\{[\w\W]*\}|\[[\w\W]*\])$/,
	rmultiDash = /[A-Z]/g;

function getData( data ) {
	if ( data === "true" ) {
		return true;
	}

	if ( data === "false" ) {
		return false;
	}

	if ( data === "null" ) {
		return null;
	}

	// Only convert to a number if it doesn't change the string
	if ( data === +data + "" ) {
		return +data;
	}

	if ( rbrace.test( data ) ) {
		return JSON.parse( data );
	}

	return data;
}

function dataAttr( elem, key, data ) {
	var name;

	// If nothing was found internally, try to fetch any
	// data from the HTML5 data-* attribute
	if ( data === undefined && elem.nodeType === 1 ) {
		name = "data-" + key.replace( rmultiDash, "-$&" ).toLowerCase();
		data = elem.getAttribute( name );

		if ( typeof data === "string" ) {
			try {
				data = getData( data );
			} catch ( e ) {}

			// Make sure we set the data so it isn't changed later
			dataUser.set( elem, key, data );
		} else {
			data = undefined;
		}
	}
	return data;
}

jQuery.extend( {
	hasData: function( elem ) {
		return dataUser.hasData( elem ) || dataPriv.hasData( elem );
	},

	data: function( elem, name, data ) {
		return dataUser.access( elem, name, data );
	},

	removeData: function( elem, name ) {
		dataUser.remove( elem, name );
	},

	// TODO: Now that all calls to _data and _removeData have been replaced
	// with direct calls to dataPriv methods, these can be deprecated.
	_data: function( elem, name, data ) {
		return dataPriv.access( elem, name, data );
	},

	_removeData: function( elem, name ) {
		dataPriv.remove( elem, name );
	}
} );

jQuery.fn.extend( {
	data: function( key, value ) {
		var i, name, data,
			elem = this[ 0 ],
			attrs = elem && elem.attributes;

		// Gets all values
		if ( key === undefined ) {
			if ( this.length ) {
				data = dataUser.get( elem );

				if ( elem.nodeType === 1 && !dataPriv.get( elem, "hasDataAttrs" ) ) {
					i = attrs.length;
					while ( i-- ) {

						// Support: IE 11 only
						// The attrs elements can be null (#14894)
						if ( attrs[ i ] ) {
							name = attrs[ i ].name;
							if ( name.indexOf( "data-" ) === 0 ) {
								name = camelCase( name.slice( 5 ) );
								dataAttr( elem, name, data[ name ] );
							}
						}
					}
					dataPriv.set( elem, "hasDataAttrs", true );
				}
			}

			return data;
		}

		// Sets multiple values
		if ( typeof key === "object" ) {
			return this.each( function() {
				dataUser.set( this, key );
			} );
		}

		return access( this, function( value ) {
			var data;

			// The calling jQuery object (element matches) is not empty
			// (and therefore has an element appears at this[ 0 ]) and the
			// `value` parameter was not undefined. An empty jQuery object
			// will result in `undefined` for elem = this[ 0 ] which will
			// throw an exception if an attempt to read a data cache is made.
			if ( elem && value === undefined ) {

				// Attempt to get data from the cache
				// The key will always be camelCased in Data
				data = dataUser.get( elem, key );
				if ( data !== undefined ) {
					return data;
				}

				// Attempt to "discover" the data in
				// HTML5 custom data-* attrs
				data = dataAttr( elem, key );
				if ( data !== undefined ) {
					return data;
				}

				// We tried really hard, but the data doesn't exist.
				return;
			}

			// Set the data...
			this.each( function() {

				// We always store the camelCased key
				dataUser.set( this, key, value );
			} );
		}, null, value, arguments.length > 1, null, true );
	},

	removeData: function( key ) {
		return this.each( function() {
			dataUser.remove( this, key );
		} );
	}
} );


jQuery.extend( {
	queue: function( elem, type, data ) {
		var queue;

		if ( elem ) {
			type = ( type || "fx" ) + "queue";
			queue = dataPriv.get( elem, type );

			// Speed up dequeue by getting out quickly if this is just a lookup
			if ( data ) {
				if ( !queue || Array.isArray( data ) ) {
					queue = dataPriv.access( elem, type, jQuery.makeArray( data ) );
				} else {
					queue.push( data );
				}
			}
			return queue || [];
		}
	},

	dequeue: function( elem, type ) {
		type = type || "fx";

		var queue = jQuery.queue( elem, type ),
			startLength = queue.length,
			fn = queue.shift(),
			hooks = jQuery._queueHooks( elem, type ),
			next = function() {
				jQuery.dequeue( elem, type );
			};

		// If the fx queue is dequeued, always remove the progress sentinel
		if ( fn === "inprogress" ) {
			fn = queue.shift();
			startLength--;
		}

		if ( fn ) {

			// Add a progress sentinel to prevent the fx queue from being
			// automatically dequeued
			if ( type === "fx" ) {
				queue.unshift( "inprogress" );
			}

			// Clear up the last queue stop function
			delete hooks.stop;
			fn.call( elem, next, hooks );
		}

		if ( !startLength && hooks ) {
			hooks.empty.fire();
		}
	},

	// Not public - generate a queueHooks object, or return the current one
	_queueHooks: function( elem, type ) {
		var key = type + "queueHooks";
		return dataPriv.get( elem, key ) || dataPriv.access( elem, key, {
			empty: jQuery.Callbacks( "once memory" ).add( function() {
				dataPriv.remove( elem, [ type + "queue", key ] );
			} )
		} );
	}
} );

jQuery.fn.extend( {
	queue: function( type, data ) {
		var setter = 2;

		if ( typeof type !== "string" ) {
			data = type;
			type = "fx";
			setter--;
		}

		if ( arguments.length < setter ) {
			return jQuery.queue( this[ 0 ], type );
		}

		return data === undefined ?
			this :
			this.each( function() {
				var queue = jQuery.queue( this, type, data );

				// Ensure a hooks for this queue
				jQuery._queueHooks( this, type );

				if ( type === "fx" && queue[ 0 ] !== "inprogress" ) {
					jQuery.dequeue( this, type );
				}
			} );
	},
	dequeue: function( type ) {
		return this.each( function() {
			jQuery.dequeue( this, type );
		} );
	},
	clearQueue: function( type ) {
		return this.queue( type || "fx", [] );
	},

	// Get a promise resolved when queues of a certain type
	// are emptied (fx is the type by default)
	promise: function( type, obj ) {
		var tmp,
			count = 1,
			defer = jQuery.Deferred(),
			elements = this,
			i = this.length,
			resolve = function() {
				if ( !( --count ) ) {
					defer.resolveWith( elements, [ elements ] );
				}
			};

		if ( typeof type !== "string" ) {
			obj = type;
			type = undefined;
		}
		type = type || "fx";

		while ( i-- ) {
			tmp = dataPriv.get( elements[ i ], type + "queueHooks" );
			if ( tmp && tmp.empty ) {
				count++;
				tmp.empty.add( resolve );
			}
		}
		resolve();
		return defer.promise( obj );
	}
} );
var pnum = ( /[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/ ).source;

var rcssNum = new RegExp( "^(?:([+-])=|)(" + pnum + ")([a-z%]*)$", "i" );


var cssExpand = [ "Top", "Right", "Bottom", "Left" ];

var documentElement = document.documentElement;



	var isAttached = function( elem ) {
			return jQuery.contains( elem.ownerDocument, elem );
		},
		composed = { composed: true };

	// Support: IE 9 - 11+, Edge 12 - 18+, iOS 10.0 - 10.2 only
	// Check attachment across shadow DOM boundaries when possible (gh-3504)
	// Support: iOS 10.0-10.2 only
	// Early iOS 10 versions support `attachShadow` but not `getRootNode`,
	// leading to errors. We need to check for `getRootNode`.
	if ( documentElement.getRootNode ) {
		isAttached = function( elem ) {
			return jQuery.contains( elem.ownerDocument, elem ) ||
				elem.getRootNode( composed ) === elem.ownerDocument;
		};
	}
var isHiddenWithinTree = function( elem, el ) {

		// isHiddenWithinTree might be called from jQuery#filter function;
		// in that case, element will be second argument
		elem = el || elem;

		// Inline style trumps all
		return elem.style.display === "none" ||
			elem.style.display === "" &&

			// Otherwise, check computed style
			// Support: Firefox <=43 - 45
			// Disconnected elements can have computed display: none, so first confirm that elem is
			// in the document.
			isAttached( elem ) &&

			jQuery.css( elem, "display" ) === "none";
	};



function adjustCSS( elem, prop, valueParts, tween ) {
	var adjusted, scale,
		maxIterations = 20,
		currentValue = tween ?
			function() {
				return tween.cur();
			} :
			function() {
				return jQuery.css( elem, prop, "" );
			},
		initial = currentValue(),
		unit = valueParts && valueParts[ 3 ] || ( jQuery.cssNumber[ prop ] ? "" : "px" ),

		// Starting value computation is required for potential unit mismatches
		initialInUnit = elem.nodeType &&
			( jQuery.cssNumber[ prop ] || unit !== "px" && +initial ) &&
			rcssNum.exec( jQuery.css( elem, prop ) );

	if ( initialInUnit && initialInUnit[ 3 ] !== unit ) {

		// Support: Firefox <=54
		// Halve the iteration target value to prevent interference from CSS upper bounds (gh-2144)
		initial = initial / 2;

		// Trust units reported by jQuery.css
		unit = unit || initialInUnit[ 3 ];

		// Iteratively approximate from a nonzero starting point
		initialInUnit = +initial || 1;

		while ( maxIterations-- ) {

			// Evaluate and update our best guess (doubling guesses that zero out).
			// Finish if the scale equals or crosses 1 (making the old*new product non-positive).
			jQuery.style( elem, prop, initialInUnit + unit );
			if ( ( 1 - scale ) * ( 1 - ( scale = currentValue() / initial || 0.5 ) ) <= 0 ) {
				maxIterations = 0;
			}
			initialInUnit = initialInUnit / scale;

		}

		initialInUnit = initialInUnit * 2;
		jQuery.style( elem, prop, initialInUnit + unit );

		// Make sure we update the tween properties later on
		valueParts = valueParts || [];
	}

	if ( valueParts ) {
		initialInUnit = +initialInUnit || +initial || 0;

		// Apply relative offset (+=/-=) if specified
		adjusted = valueParts[ 1 ] ?
			initialInUnit + ( valueParts[ 1 ] + 1 ) * valueParts[ 2 ] :
			+valueParts[ 2 ];
		if ( tween ) {
			tween.unit = unit;
			tween.start = initialInUnit;
			tween.end = adjusted;
		}
	}
	return adjusted;
}


var defaultDisplayMap = {};

function getDefaultDisplay( elem ) {
	var temp,
		doc = elem.ownerDocument,
		nodeName = elem.nodeName,
		display = defaultDisplayMap[ nodeName ];

	if ( display ) {
		return display;
	}

	temp = doc.body.appendChild( doc.createElement( nodeName ) );
	display = jQuery.css( temp, "display" );

	temp.parentNode.removeChild( temp );

	if ( display === "none" ) {
		display = "block";
	}
	defaultDisplayMap[ nodeName ] = display;

	return display;
}

function showHide( elements, show ) {
	var display, elem,
		values = [],
		index = 0,
		length = elements.length;

	// Determine new display value for elements that need to change
	for ( ; index < length; index++ ) {
		elem = elements[ index ];
		if ( !elem.style ) {
			continue;
		}

		display = elem.style.display;
		if ( show ) {

			// Since we force visibility upon cascade-hidden elements, an immediate (and slow)
			// check is required in this first loop unless we have a nonempty display value (either
			// inline or about-to-be-restored)
			if ( display === "none" ) {
				values[ index ] = dataPriv.get( elem, "display" ) || null;
				if ( !values[ index ] ) {
					elem.style.display = "";
				}
			}
			if ( elem.style.display === "" && isHiddenWithinTree( elem ) ) {
				values[ index ] = getDefaultDisplay( elem );
			}
		} else {
			if ( display !== "none" ) {
				values[ index ] = "none";

				// Remember what we're overwriting
				dataPriv.set( elem, "display", display );
			}
		}
	}

	// Set the display of the elements in a second loop to avoid constant reflow
	for ( index = 0; index < length; index++ ) {
		if ( values[ index ] != null ) {
			elements[ index ].style.display = values[ index ];
		}
	}

	return elements;
}

jQuery.fn.extend( {
	show: function() {
		return showHide( this, true );
	},
	hide: function() {
		return showHide( this );
	},
	toggle: function( state ) {
		if ( typeof state === "boolean" ) {
			return state ? this.show() : this.hide();
		}

		return this.each( function() {
			if ( isHiddenWithinTree( this ) ) {
				jQuery( this ).show();
			} else {
				jQuery( this ).hide();
			}
		} );
	}
} );
var rcheckableType = ( /^(?:checkbox|radio)$/i );

var rtagName = ( /<([a-z][^\/\0>\x20\t\r\n\f]*)/i );

var rscriptType = ( /^$|^module$|\/(?:java|ecma)script/i );



( function() {
	var fragment = document.createDocumentFragment(),
		div = fragment.appendChild( document.createElement( "div" ) ),
		input = document.createElement( "input" );

	// Support: Android 4.0 - 4.3 only
	// Check state lost if the name is set (#11217)
	// Support: Windows Web Apps (WWA)
	// `name` and `type` must use .setAttribute for WWA (#14901)
	input.setAttribute( "type", "radio" );
	input.setAttribute( "checked", "checked" );
	input.setAttribute( "name", "t" );

	div.appendChild( input );

	// Support: Android <=4.1 only
	// Older WebKit doesn't clone checked state correctly in fragments
	support.checkClone = div.cloneNode( true ).cloneNode( true ).lastChild.checked;

	// Support: IE <=11 only
	// Make sure textarea (and checkbox) defaultValue is properly cloned
	div.innerHTML = "<textarea>x</textarea>";
	support.noCloneChecked = !!div.cloneNode( true ).lastChild.defaultValue;

	// Support: IE <=9 only
	// IE <=9 replaces <option> tags with their contents when inserted outside of
	// the select element.
	div.innerHTML = "<option></option>";
	support.option = !!div.lastChild;
} )();


// We have to close these tags to support XHTML (#13200)
var wrapMap = {

	// XHTML parsers do not magically insert elements in the
	// same way that tag soup parsers do. So we cannot shorten
	// this by omitting <tbody> or other required elements.
	thead: [ 1, "<table>", "</table>" ],
	col: [ 2, "<table><colgroup>", "</colgroup></table>" ],
	tr: [ 2, "<table><tbody>", "</tbody></table>" ],
	td: [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ],

	_default: [ 0, "", "" ]
};

wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;
wrapMap.th = wrapMap.td;

// Support: IE <=9 only
if ( !support.option ) {
	wrapMap.optgroup = wrapMap.option = [ 1, "<select multiple='multiple'>", "</select>" ];
}


function getAll( context, tag ) {

	// Support: IE <=9 - 11 only
	// Use typeof to avoid zero-argument method invocation on host objects (#15151)
	var ret;

	if ( typeof context.getElementsByTagName !== "undefined" ) {
		ret = context.getElementsByTagName( tag || "*" );

	} else if ( typeof context.querySelectorAll !== "undefined" ) {
		ret = context.querySelectorAll( tag || "*" );

	} else {
		ret = [];
	}

	if ( tag === undefined || tag && nodeName( context, tag ) ) {
		return jQuery.merge( [ context ], ret );
	}

	return ret;
}


// Mark scripts as having already been evaluated
function setGlobalEval( elems, refElements ) {
	var i = 0,
		l = elems.length;

	for ( ; i < l; i++ ) {
		dataPriv.set(
			elems[ i ],
			"globalEval",
			!refElements || dataPriv.get( refElements[ i ], "globalEval" )
		);
	}
}


var rhtml = /<|&#?\w+;/;

function buildFragment( elems, context, scripts, selection, ignored ) {
	var elem, tmp, tag, wrap, attached, j,
		fragment = context.createDocumentFragment(),
		nodes = [],
		i = 0,
		l = elems.length;

	for ( ; i < l; i++ ) {
		elem = elems[ i ];

		if ( elem || elem === 0 ) {

			// Add nodes directly
			if ( toType( elem ) === "object" ) {

				// Support: Android <=4.0 only, PhantomJS 1 only
				// push.apply(_, arraylike) throws on ancient WebKit
				jQuery.merge( nodes, elem.nodeType ? [ elem ] : elem );

			// Convert non-html into a text node
			} else if ( !rhtml.test( elem ) ) {
				nodes.push( context.createTextNode( elem ) );

			// Convert html into DOM nodes
			} else {
				tmp = tmp || fragment.appendChild( context.createElement( "div" ) );

				// Deserialize a standard representation
				tag = ( rtagName.exec( elem ) || [ "", "" ] )[ 1 ].toLowerCase();
				wrap = wrapMap[ tag ] || wrapMap._default;
				tmp.innerHTML = wrap[ 1 ] + jQuery.htmlPrefilter( elem ) + wrap[ 2 ];

				// Descend through wrappers to the right content
				j = wrap[ 0 ];
				while ( j-- ) {
					tmp = tmp.lastChild;
				}

				// Support: Android <=4.0 only, PhantomJS 1 only
				// push.apply(_, arraylike) throws on ancient WebKit
				jQuery.merge( nodes, tmp.childNodes );

				// Remember the top-level container
				tmp = fragment.firstChild;

				// Ensure the created nodes are orphaned (#12392)
				tmp.textContent = "";
			}
		}
	}

	// Remove wrapper from fragment
	fragment.textContent = "";

	i = 0;
	while ( ( elem = nodes[ i++ ] ) ) {

		// Skip elements already in the context collection (trac-4087)
		if ( selection && jQuery.inArray( elem, selection ) > -1 ) {
			if ( ignored ) {
				ignored.push( elem );
			}
			continue;
		}

		attached = isAttached( elem );

		// Append to fragment
		tmp = getAll( fragment.appendChild( elem ), "script" );

		// Preserve script evaluation history
		if ( attached ) {
			setGlobalEval( tmp );
		}

		// Capture executables
		if ( scripts ) {
			j = 0;
			while ( ( elem = tmp[ j++ ] ) ) {
				if ( rscriptType.test( elem.type || "" ) ) {
					scripts.push( elem );
				}
			}
		}
	}

	return fragment;
}


var
	rkeyEvent = /^key/,
	rmouseEvent = /^(?:mouse|pointer|contextmenu|drag|drop)|click/,
	rtypenamespace = /^([^.]*)(?:\.(.+)|)/;

function returnTrue() {
	return true;
}

function returnFalse() {
	return false;
}

// Support: IE <=9 - 11+
// focus() and blur() are asynchronous, except when they are no-op.
// So expect focus to be synchronous when the element is already active,
// and blur to be synchronous when the element is not already active.
// (focus and blur are always synchronous in other supported browsers,
// this just defines when we can count on it).
function expectSync( elem, type ) {
	return ( elem === safeActiveElement() ) === ( type === "focus" );
}

// Support: IE <=9 only
// Accessing document.activeElement can throw unexpectedly
// https://bugs.jquery.com/ticket/13393
function safeActiveElement() {
	try {
		return document.activeElement;
	} catch ( err ) { }
}

function on( elem, types, selector, data, fn, one ) {
	var origFn, type;

	// Types can be a map of types/handlers
	if ( typeof types === "object" ) {

		// ( types-Object, selector, data )
		if ( typeof selector !== "string" ) {

			// ( types-Object, data )
			data = data || selector;
			selector = undefined;
		}
		for ( type in types ) {
			on( elem, type, selector, data, types[ type ], one );
		}
		return elem;
	}

	if ( data == null && fn == null ) {

		// ( types, fn )
		fn = selector;
		data = selector = undefined;
	} else if ( fn == null ) {
		if ( typeof selector === "string" ) {

			// ( types, selector, fn )
			fn = data;
			data = undefined;
		} else {

			// ( types, data, fn )
			fn = data;
			data = selector;
			selector = undefined;
		}
	}
	if ( fn === false ) {
		fn = returnFalse;
	} else if ( !fn ) {
		return elem;
	}

	if ( one === 1 ) {
		origFn = fn;
		fn = function( event ) {

			// Can use an empty set, since event contains the info
			jQuery().off( event );
			return origFn.apply( this, arguments );
		};

		// Use same guid so caller can remove using origFn
		fn.guid = origFn.guid || ( origFn.guid = jQuery.guid++ );
	}
	return elem.each( function() {
		jQuery.event.add( this, types, fn, data, selector );
	} );
}

/*
 * Helper functions for managing events -- not part of the public interface.
 * Props to Dean Edwards' addEvent library for many of the ideas.
 */
jQuery.event = {

	global: {},

	add: function( elem, types, handler, data, selector ) {

		var handleObjIn, eventHandle, tmp,
			events, t, handleObj,
			special, handlers, type, namespaces, origType,
			elemData = dataPriv.get( elem );

		// Only attach events to objects that accept data
		if ( !acceptData( elem ) ) {
			return;
		}

		// Caller can pass in an object of custom data in lieu of the handler
		if ( handler.handler ) {
			handleObjIn = handler;
			handler = handleObjIn.handler;
			selector = handleObjIn.selector;
		}

		// Ensure that invalid selectors throw exceptions at attach time
		// Evaluate against documentElement in case elem is a non-element node (e.g., document)
		if ( selector ) {
			jQuery.find.matchesSelector( documentElement, selector );
		}

		// Make sure that the handler has a unique ID, used to find/remove it later
		if ( !handler.guid ) {
			handler.guid = jQuery.guid++;
		}

		// Init the element's event structure and main handler, if this is the first
		if ( !( events = elemData.events ) ) {
			events = elemData.events = Object.create( null );
		}
		if ( !( eventHandle = elemData.handle ) ) {
			eventHandle = elemData.handle = function( e ) {

				// Discard the second event of a jQuery.event.trigger() and
				// when an event is called after a page has unloaded
				return typeof jQuery !== "undefined" && jQuery.event.triggered !== e.type ?
					jQuery.event.dispatch.apply( elem, arguments ) : undefined;
			};
		}

		// Handle multiple events separated by a space
		types = ( types || "" ).match( rnothtmlwhite ) || [ "" ];
		t = types.length;
		while ( t-- ) {
			tmp = rtypenamespace.exec( types[ t ] ) || [];
			type = origType = tmp[ 1 ];
			namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort();

			// There *must* be a type, no attaching namespace-only handlers
			if ( !type ) {
				continue;
			}

			// If event changes its type, use the special event handlers for the changed type
			special = jQuery.event.special[ type ] || {};

			// If selector defined, determine special event api type, otherwise given type
			type = ( selector ? special.delegateType : special.bindType ) || type;

			// Update special based on newly reset type
			special = jQuery.event.special[ type ] || {};

			// handleObj is passed to all event handlers
			handleObj = jQuery.extend( {
				type: type,
				origType: origType,
				data: data,
				handler: handler,
				guid: handler.guid,
				selector: selector,
				needsContext: selector && jQuery.expr.match.needsContext.test( selector ),
				namespace: namespaces.join( "." )
			}, handleObjIn );

			// Init the event handler queue if we're the first
			if ( !( handlers = events[ type ] ) ) {
				handlers = events[ type ] = [];
				handlers.delegateCount = 0;

				// Only use addEventListener if the special events handler returns false
				if ( !special.setup ||
					special.setup.call( elem, data, namespaces, eventHandle ) === false ) {

					if ( elem.addEventListener ) {
						elem.addEventListener( type, eventHandle );
					}
				}
			}

			if ( special.add ) {
				special.add.call( elem, handleObj );

				if ( !handleObj.handler.guid ) {
					handleObj.handler.guid = handler.guid;
				}
			}

			// Add to the element's handler list, delegates in front
			if ( selector ) {
				handlers.splice( handlers.delegateCount++, 0, handleObj );
			} else {
				handlers.push( handleObj );
			}

			// Keep track of which events have ever been used, for event optimization
			jQuery.event.global[ type ] = true;
		}

	},

	// Detach an event or set of events from an element
	remove: function( elem, types, handler, selector, mappedTypes ) {

		var j, origCount, tmp,
			events, t, handleObj,
			special, handlers, type, namespaces, origType,
			elemData = dataPriv.hasData( elem ) && dataPriv.get( elem );

		if ( !elemData || !( events = elemData.events ) ) {
			return;
		}

		// Once for each type.namespace in types; type may be omitted
		types = ( types || "" ).match( rnothtmlwhite ) || [ "" ];
		t = types.length;
		while ( t-- ) {
			tmp = rtypenamespace.exec( types[ t ] ) || [];
			type = origType = tmp[ 1 ];
			namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort();

			// Unbind all events (on this namespace, if provided) for the element
			if ( !type ) {
				for ( type in events ) {
					jQuery.event.remove( elem, type + types[ t ], handler, selector, true );
				}
				continue;
			}

			special = jQuery.event.special[ type ] || {};
			type = ( selector ? special.delegateType : special.bindType ) || type;
			handlers = events[ type ] || [];
			tmp = tmp[ 2 ] &&
				new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" );

			// Remove matching events
			origCount = j = handlers.length;
			while ( j-- ) {
				handleObj = handlers[ j ];

				if ( ( mappedTypes || origType === handleObj.origType ) &&
					( !handler || handler.guid === handleObj.guid ) &&
					( !tmp || tmp.test( handleObj.namespace ) ) &&
					( !selector || selector === handleObj.selector ||
						selector === "**" && handleObj.selector ) ) {
					handlers.splice( j, 1 );

					if ( handleObj.selector ) {
						handlers.delegateCount--;
					}
					if ( special.remove ) {
						special.remove.call( elem, handleObj );
					}
				}
			}

			// Remove generic event handler if we removed something and no more handlers exist
			// (avoids potential for endless recursion during removal of special event handlers)
			if ( origCount && !handlers.length ) {
				if ( !special.teardown ||
					special.teardown.call( elem, namespaces, elemData.handle ) === false ) {

					jQuery.removeEvent( elem, type, elemData.handle );
				}

				delete events[ type ];
			}
		}

		// Remove data and the expando if it's no longer used
		if ( jQuery.isEmptyObject( events ) ) {
			dataPriv.remove( elem, "handle events" );
		}
	},

	dispatch: function( nativeEvent ) {

		var i, j, ret, matched, handleObj, handlerQueue,
			args = new Array( arguments.length ),

			// Make a writable jQuery.Event from the native event object
			event = jQuery.event.fix( nativeEvent ),

			handlers = (
					dataPriv.get( this, "events" ) || Object.create( null )
				)[ event.type ] || [],
			special = jQuery.event.special[ event.type ] || {};

		// Use the fix-ed jQuery.Event rather than the (read-only) native event
		args[ 0 ] = event;

		for ( i = 1; i < arguments.length; i++ ) {
			args[ i ] = arguments[ i ];
		}

		event.delegateTarget = this;

		// Call the preDispatch hook for the mapped type, and let it bail if desired
		if ( special.preDispatch && special.preDispatch.call( this, event ) === false ) {
			return;
		}

		// Determine handlers
		handlerQueue = jQuery.event.handlers.call( this, event, handlers );

		// Run delegates first; they may want to stop propagation beneath us
		i = 0;
		while ( ( matched = handlerQueue[ i++ ] ) && !event.isPropagationStopped() ) {
			event.currentTarget = matched.elem;

			j = 0;
			while ( ( handleObj = matched.handlers[ j++ ] ) &&
				!event.isImmediatePropagationStopped() ) {

				// If the event is namespaced, then each handler is only invoked if it is
				// specially universal or its namespaces are a superset of the event's.
				if ( !event.rnamespace || handleObj.namespace === false ||
					event.rnamespace.test( handleObj.namespace ) ) {

					event.handleObj = handleObj;
					event.data = handleObj.data;

					ret = ( ( jQuery.event.special[ handleObj.origType ] || {} ).handle ||
						handleObj.handler ).apply( matched.elem, args );

					if ( ret !== undefined ) {
						if ( ( event.result = ret ) === false ) {
							event.preventDefault();
							event.stopPropagation();
						}
					}
				}
			}
		}

		// Call the postDispatch hook for the mapped type
		if ( special.postDispatch ) {
			special.postDispatch.call( this, event );
		}

		return event.result;
	},

	handlers: function( event, handlers ) {
		var i, handleObj, sel, matchedHandlers, matchedSelectors,
			handlerQueue = [],
			delegateCount = handlers.delegateCount,
			cur = event.target;

		// Find delegate handlers
		if ( delegateCount &&

			// Support: IE <=9
			// Black-hole SVG <use> instance trees (trac-13180)
			cur.nodeType &&

			// Support: Firefox <=42
			// Suppress spec-violating clicks indicating a non-primary pointer button (trac-3861)
			// https://www.w3.org/TR/DOM-Level-3-Events/#event-type-click
			// Support: IE 11 only
			// ...but not arrow key "clicks" of radio inputs, which can have `button` -1 (gh-2343)
			!( event.type === "click" && event.button >= 1 ) ) {

			for ( ; cur !== this; cur = cur.parentNode || this ) {

				// Don't check non-elements (#13208)
				// Don't process clicks on disabled elements (#6911, #8165, #11382, #11764)
				if ( cur.nodeType === 1 && !( event.type === "click" && cur.disabled === true ) ) {
					matchedHandlers = [];
					matchedSelectors = {};
					for ( i = 0; i < delegateCount; i++ ) {
						handleObj = handlers[ i ];

						// Don't conflict with Object.prototype properties (#13203)
						sel = handleObj.selector + " ";

						if ( matchedSelectors[ sel ] === undefined ) {
							matchedSelectors[ sel ] = handleObj.needsContext ?
								jQuery( sel, this ).index( cur ) > -1 :
								jQuery.find( sel, this, null, [ cur ] ).length;
						}
						if ( matchedSelectors[ sel ] ) {
							matchedHandlers.push( handleObj );
						}
					}
					if ( matchedHandlers.length ) {
						handlerQueue.push( { elem: cur, handlers: matchedHandlers } );
					}
				}
			}
		}

		// Add the remaining (directly-bound) handlers
		cur = this;
		if ( delegateCount < handlers.length ) {
			handlerQueue.push( { elem: cur, handlers: handlers.slice( delegateCount ) } );
		}

		return handlerQueue;
	},

	addProp: function( name, hook ) {
		Object.defineProperty( jQuery.Event.prototype, name, {
			enumerable: true,
			configurable: true,

			get: isFunction( hook ) ?
				function() {
					if ( this.originalEvent ) {
							return hook( this.originalEvent );
					}
				} :
				function() {
					if ( this.originalEvent ) {
							return this.originalEvent[ name ];
					}
				},

			set: function( value ) {
				Object.defineProperty( this, name, {
					enumerable: true,
					configurable: true,
					writable: true,
					value: value
				} );
			}
		} );
	},

	fix: function( originalEvent ) {
		return originalEvent[ jQuery.expando ] ?
			originalEvent :
			new jQuery.Event( originalEvent );
	},

	special: {
		load: {

			// Prevent triggered image.load events from bubbling to window.load
			noBubble: true
		},
		click: {

			// Utilize native event to ensure correct state for checkable inputs
			setup: function( data ) {

				// For mutual compressibility with _default, replace `this` access with a local var.
				// `|| data` is dead code meant only to preserve the variable through minification.
				var el = this || data;

				// Claim the first handler
				if ( rcheckableType.test( el.type ) &&
					el.click && nodeName( el, "input" ) ) {

					// dataPriv.set( el, "click", ... )
					leverageNative( el, "click", returnTrue );
				}

				// Return false to allow normal processing in the caller
				return false;
			},
			trigger: function( data ) {

				// For mutual compressibility with _default, replace `this` access with a local var.
				// `|| data` is dead code meant only to preserve the variable through minification.
				var el = this || data;

				// Force setup before triggering a click
				if ( rcheckableType.test( el.type ) &&
					el.click && nodeName( el, "input" ) ) {

					leverageNative( el, "click" );
				}

				// Return non-false to allow normal event-path propagation
				return true;
			},

			// For cross-browser consistency, suppress native .click() on links
			// Also prevent it if we're currently inside a leveraged native-event stack
			_default: function( event ) {
				var target = event.target;
				return rcheckableType.test( target.type ) &&
					target.click && nodeName( target, "input" ) &&
					dataPriv.get( target, "click" ) ||
					nodeName( target, "a" );
			}
		},

		beforeunload: {
			postDispatch: function( event ) {

				// Support: Firefox 20+
				// Firefox doesn't alert if the returnValue field is not set.
				if ( event.result !== undefined && event.originalEvent ) {
					event.originalEvent.returnValue = event.result;
				}
			}
		}
	}
};

// Ensure the presence of an event listener that handles manually-triggered
// synthetic events by interrupting progress until reinvoked in response to
// *native* events that it fires directly, ensuring that state changes have
// already occurred before other listeners are invoked.
function leverageNative( el, type, expectSync ) {

	// Missing expectSync indicates a trigger call, which must force setup through jQuery.event.add
	if ( !expectSync ) {
		if ( dataPriv.get( el, type ) === undefined ) {
			jQuery.event.add( el, type, returnTrue );
		}
		return;
	}

	// Register the controller as a special universal handler for all event namespaces
	dataPriv.set( el, type, false );
	jQuery.event.add( el, type, {
		namespace: false,
		handler: function( event ) {
			var notAsync, result,
				saved = dataPriv.get( this, type );

			if ( ( event.isTrigger & 1 ) && this[ type ] ) {

				// Interrupt processing of the outer synthetic .trigger()ed event
				// Saved data should be false in such cases, but might be a leftover capture object
				// from an async native handler (gh-4350)
				if ( !saved.length ) {

					// Store arguments for use when handling the inner native event
					// There will always be at least one argument (an event object), so this array
					// will not be confused with a leftover capture object.
					saved = slice.call( arguments );
					dataPriv.set( this, type, saved );

					// Trigger the native event and capture its result
					// Support: IE <=9 - 11+
					// focus() and blur() are asynchronous
					notAsync = expectSync( this, type );
					this[ type ]();
					result = dataPriv.get( this, type );
					if ( saved !== result || notAsync ) {
						dataPriv.set( this, type, false );
					} else {
						result = {};
					}
					if ( saved !== result ) {

						// Cancel the outer synthetic event
						event.stopImmediatePropagation();
						event.preventDefault();
						return result.value;
					}

				// If this is an inner synthetic event for an event with a bubbling surrogate
				// (focus or blur), assume that the surrogate already propagated from triggering the
				// native event and prevent that from happening again here.
				// This technically gets the ordering wrong w.r.t. to `.trigger()` (in which the
				// bubbling surrogate propagates *after* the non-bubbling base), but that seems
				// less bad than duplication.
				} else if ( ( jQuery.event.special[ type ] || {} ).delegateType ) {
					event.stopPropagation();
				}

			// If this is a native event triggered above, everything is now in order
			// Fire an inner synthetic event with the original arguments
			} else if ( saved.length ) {

				// ...and capture the result
				dataPriv.set( this, type, {
					value: jQuery.event.trigger(

						// Support: IE <=9 - 11+
						// Extend with the prototype to reset the above stopImmediatePropagation()
						jQuery.extend( saved[ 0 ], jQuery.Event.prototype ),
						saved.slice( 1 ),
						this
					)
				} );

				// Abort handling of the native event
				event.stopImmediatePropagation();
			}
		}
	} );
}

jQuery.removeEvent = function( elem, type, handle ) {

	// This "if" is needed for plain objects
	if ( elem.removeEventListener ) {
		elem.removeEventListener( type, handle );
	}
};

jQuery.Event = function( src, props ) {

	// Allow instantiation without the 'new' keyword
	if ( !( this instanceof jQuery.Event ) ) {
		return new jQuery.Event( src, props );
	}

	// Event object
	if ( src && src.type ) {
		this.originalEvent = src;
		this.type = src.type;

		// Events bubbling up the document may have been marked as prevented
		// by a handler lower down the tree; reflect the correct value.
		this.isDefaultPrevented = src.defaultPrevented ||
				src.defaultPrevented === undefined &&

				// Support: Android <=2.3 only
				src.returnValue === false ?
			returnTrue :
			returnFalse;

		// Create target properties
		// Support: Safari <=6 - 7 only
		// Target should not be a text node (#504, #13143)
		this.target = ( src.target && src.target.nodeType === 3 ) ?
			src.target.parentNode :
			src.target;

		this.currentTarget = src.currentTarget;
		this.relatedTarget = src.relatedTarget;

	// Event type
	} else {
		this.type = src;
	}

	// Put explicitly provided properties onto the event object
	if ( props ) {
		jQuery.extend( this, props );
	}

	// Create a timestamp if incoming event doesn't have one
	this.timeStamp = src && src.timeStamp || Date.now();

	// Mark it as fixed
	this[ jQuery.expando ] = true;
};

// jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding
// https://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html
jQuery.Event.prototype = {
	constructor: jQuery.Event,
	isDefaultPrevented: returnFalse,
	isPropagationStopped: returnFalse,
	isImmediatePropagationStopped: returnFalse,
	isSimulated: false,

	preventDefault: function() {
		var e = this.originalEvent;

		this.isDefaultPrevented = returnTrue;

		if ( e && !this.isSimulated ) {
			e.preventDefault();
		}
	},
	stopPropagation: function() {
		var e = this.originalEvent;

		this.isPropagationStopped = returnTrue;

		if ( e && !this.isSimulated ) {
			e.stopPropagation();
		}
	},
	stopImmediatePropagation: function() {
		var e = this.originalEvent;

		this.isImmediatePropagationStopped = returnTrue;

		if ( e && !this.isSimulated ) {
			e.stopImmediatePropagation();
		}

		this.stopPropagation();
	}
};

// Includes all common event props including KeyEvent and MouseEvent specific props
jQuery.each( {
	altKey: true,
	bubbles: true,
	cancelable: true,
	changedTouches: true,
	ctrlKey: true,
	detail: true,
	eventPhase: true,
	metaKey: true,
	pageX: true,
	pageY: true,
	shiftKey: true,
	view: true,
	"char": true,
	code: true,
	charCode: true,
	key: true,
	keyCode: true,
	button: true,
	buttons: true,
	clientX: true,
	clientY: true,
	offsetX: true,
	offsetY: true,
	pointerId: true,
	pointerType: true,
	screenX: true,
	screenY: true,
	targetTouches: true,
	toElement: true,
	touches: true,

	which: function( event ) {
		var button = event.button;

		// Add which for key events
		if ( event.which == null && rkeyEvent.test( event.type ) ) {
			return event.charCode != null ? event.charCode : event.keyCode;
		}

		// Add which for click: 1 === left; 2 === middle; 3 === right
		if ( !event.which && button !== undefined && rmouseEvent.test( event.type ) ) {
			if ( button & 1 ) {
				return 1;
			}

			if ( button & 2 ) {
				return 3;
			}

			if ( button & 4 ) {
				return 2;
			}

			return 0;
		}

		return event.which;
	}
}, jQuery.event.addProp );

jQuery.each( { focus: "focusin", blur: "focusout" }, function( type, delegateType ) {
	jQuery.event.special[ type ] = {

		// Utilize native event if possible so blur/focus sequence is correct
		setup: function() {

			// Claim the first handler
			// dataPriv.set( this, "focus", ... )
			// dataPriv.set( this, "blur", ... )
			leverageNative( this, type, expectSync );

			// Return false to allow normal processing in the caller
			return false;
		},
		trigger: function() {

			// Force setup before trigger
			leverageNative( this, type );

			// Return non-false to allow normal event-path propagation
			return true;
		},

		delegateType: delegateType
	};
} );

// Create mouseenter/leave events using mouseover/out and event-time checks
// so that event delegation works in jQuery.
// Do the same for pointerenter/pointerleave and pointerover/pointerout
//
// Support: Safari 7 only
// Safari sends mouseenter too often; see:
// https://bugs.chromium.org/p/chromium/issues/detail?id=470258
// for the description of the bug (it existed in older Chrome versions as well).
jQuery.each( {
	mouseenter: "mouseover",
	mouseleave: "mouseout",
	pointerenter: "pointerover",
	pointerleave: "pointerout"
}, function( orig, fix ) {
	jQuery.event.special[ orig ] = {
		delegateType: fix,
		bindType: fix,

		handle: function( event ) {
			var ret,
				target = this,
				related = event.relatedTarget,
				handleObj = event.handleObj;

			// For mouseenter/leave call the handler if related is outside the target.
			// NB: No relatedTarget if the mouse left/entered the browser window
			if ( !related || ( related !== target && !jQuery.contains( target, related ) ) ) {
				event.type = handleObj.origType;
				ret = handleObj.handler.apply( this, arguments );
				event.type = fix;
			}
			return ret;
		}
	};
} );

jQuery.fn.extend( {

	on: function( types, selector, data, fn ) {
		return on( this, types, selector, data, fn );
	},
	one: function( types, selector, data, fn ) {
		return on( this, types, selector, data, fn, 1 );
	},
	off: function( types, selector, fn ) {
		var handleObj, type;
		if ( types && types.preventDefault && types.handleObj ) {

			// ( event )  dispatched jQuery.Event
			handleObj = types.handleObj;
			jQuery( types.delegateTarget ).off(
				handleObj.namespace ?
					handleObj.origType + "." + handleObj.namespace :
					handleObj.origType,
				handleObj.selector,
				handleObj.handler
			);
			return this;
		}
		if ( typeof types === "object" ) {

			// ( types-object [, selector] )
			for ( type in types ) {
				this.off( type, selector, types[ type ] );
			}
			return this;
		}
		if ( selector === false || typeof selector === "function" ) {

			// ( types [, fn] )
			fn = selector;
			selector = undefined;
		}
		if ( fn === false ) {
			fn = returnFalse;
		}
		return this.each( function() {
			jQuery.event.remove( this, types, fn, selector );
		} );
	}
} );


var

	// Support: IE <=10 - 11, Edge 12 - 13 only
	// In IE/Edge using regex groups here causes severe slowdowns.
	// See https://connect.microsoft.com/IE/feedback/details/1736512/
	rnoInnerhtml = /<script|<style|<link/i,

	// checked="checked" or checked
	rchecked = /checked\s*(?:[^=]|=\s*.checked.)/i,
	rcleanScript = /^\s*<!(?:\[CDATA\[|--)|(?:\]\]|--)>\s*$/g;

// Prefer a tbody over its parent table for containing new rows
function manipulationTarget( elem, content ) {
	if ( nodeName( elem, "table" ) &&
		nodeName( content.nodeType !== 11 ? content : content.firstChild, "tr" ) ) {

		return jQuery( elem ).children( "tbody" )[ 0 ] || elem;
	}

	return elem;
}

// Replace/restore the type attribute of script elements for safe DOM manipulation
function disableScript( elem ) {
	elem.type = ( elem.getAttribute( "type" ) !== null ) + "/" + elem.type;
	return elem;
}
function restoreScript( elem ) {
	if ( ( elem.type || "" ).slice( 0, 5 ) === "true/" ) {
		elem.type = elem.type.slice( 5 );
	} else {
		elem.removeAttribute( "type" );
	}

	return elem;
}

function cloneCopyEvent( src, dest ) {
	var i, l, type, pdataOld, udataOld, udataCur, events;

	if ( dest.nodeType !== 1 ) {
		return;
	}

	// 1. Copy private data: events, handlers, etc.
	if ( dataPriv.hasData( src ) ) {
		pdataOld = dataPriv.get( src );
		events = pdataOld.events;

		if ( events ) {
			dataPriv.remove( dest, "handle events" );

			for ( type in events ) {
				for ( i = 0, l = events[ type ].length; i < l; i++ ) {
					jQuery.event.add( dest, type, events[ type ][ i ] );
				}
			}
		}
	}

	// 2. Copy user data
	if ( dataUser.hasData( src ) ) {
		udataOld = dataUser.access( src );
		udataCur = jQuery.extend( {}, udataOld );

		dataUser.set( dest, udataCur );
	}
}

// Fix IE bugs, see support tests
function fixInput( src, dest ) {
	var nodeName = dest.nodeName.toLowerCase();

	// Fails to persist the checked state of a cloned checkbox or radio button.
	if ( nodeName === "input" && rcheckableType.test( src.type ) ) {
		dest.checked = src.checked;

	// Fails to return the selected option to the default selected state when cloning options
	} else if ( nodeName === "input" || nodeName === "textarea" ) {
		dest.defaultValue = src.defaultValue;
	}
}

function domManip( collection, args, callback, ignored ) {

	// Flatten any nested arrays
	args = flat( args );

	var fragment, first, scripts, hasScripts, node, doc,
		i = 0,
		l = collection.length,
		iNoClone = l - 1,
		value = args[ 0 ],
		valueIsFunction = isFunction( value );

	// We can't cloneNode fragments that contain checked, in WebKit
	if ( valueIsFunction ||
			( l > 1 && typeof value === "string" &&
				!support.checkClone && rchecked.test( value ) ) ) {
		return collection.each( function( index ) {
			var self = collection.eq( index );
			if ( valueIsFunction ) {
				args[ 0 ] = value.call( this, index, self.html() );
			}
			domManip( self, args, callback, ignored );
		} );
	}

	if ( l ) {
		fragment = buildFragment( args, collection[ 0 ].ownerDocument, false, collection, ignored );
		first = fragment.firstChild;

		if ( fragment.childNodes.length === 1 ) {
			fragment = first;
		}

		// Require either new content or an interest in ignored elements to invoke the callback
		if ( first || ignored ) {
			scripts = jQuery.map( getAll( fragment, "script" ), disableScript );
			hasScripts = scripts.length;

			// Use the original fragment for the last item
			// instead of the first because it can end up
			// being emptied incorrectly in certain situations (#8070).
			for ( ; i < l; i++ ) {
				node = fragment;

				if ( i !== iNoClone ) {
					node = jQuery.clone( node, true, true );

					// Keep references to cloned scripts for later restoration
					if ( hasScripts ) {

						// Support: Android <=4.0 only, PhantomJS 1 only
						// push.apply(_, arraylike) throws on ancient WebKit
						jQuery.merge( scripts, getAll( node, "script" ) );
					}
				}

				callback.call( collection[ i ], node, i );
			}

			if ( hasScripts ) {
				doc = scripts[ scripts.length - 1 ].ownerDocument;

				// Reenable scripts
				jQuery.map( scripts, restoreScript );

				// Evaluate executable scripts on first document insertion
				for ( i = 0; i < hasScripts; i++ ) {
					node = scripts[ i ];
					if ( rscriptType.test( node.type || "" ) &&
						!dataPriv.access( node, "globalEval" ) &&
						jQuery.contains( doc, node ) ) {

						if ( node.src && ( node.type || "" ).toLowerCase()  !== "module" ) {

							// Optional AJAX dependency, but won't run scripts if not present
							if ( jQuery._evalUrl && !node.noModule ) {
								jQuery._evalUrl( node.src, {
									nonce: node.nonce || node.getAttribute( "nonce" )
								}, doc );
							}
						} else {
							DOMEval( node.textContent.replace( rcleanScript, "" ), node, doc );
						}
					}
				}
			}
		}
	}

	return collection;
}

function remove( elem, selector, keepData ) {
	var node,
		nodes = selector ? jQuery.filter( selector, elem ) : elem,
		i = 0;

	for ( ; ( node = nodes[ i ] ) != null; i++ ) {
		if ( !keepData && node.nodeType === 1 ) {
			jQuery.cleanData( getAll( node ) );
		}

		if ( node.parentNode ) {
			if ( keepData && isAttached( node ) ) {
				setGlobalEval( getAll( node, "script" ) );
			}
			node.parentNode.removeChild( node );
		}
	}

	return elem;
}

jQuery.extend( {
	htmlPrefilter: function( html ) {
		return html;
	},

	clone: function( elem, dataAndEvents, deepDataAndEvents ) {
		var i, l, srcElements, destElements,
			clone = elem.cloneNode( true ),
			inPage = isAttached( elem );

		// Fix IE cloning issues
		if ( !support.noCloneChecked && ( elem.nodeType === 1 || elem.nodeType === 11 ) &&
				!jQuery.isXMLDoc( elem ) ) {

			// We eschew Sizzle here for performance reasons: https://jsperf.com/getall-vs-sizzle/2
			destElements = getAll( clone );
			srcElements = getAll( elem );

			for ( i = 0, l = srcElements.length; i < l; i++ ) {
				fixInput( srcElements[ i ], destElements[ i ] );
			}
		}

		// Copy the events from the original to the clone
		if ( dataAndEvents ) {
			if ( deepDataAndEvents ) {
				srcElements = srcElements || getAll( elem );
				destElements = destElements || getAll( clone );

				for ( i = 0, l = srcElements.length; i < l; i++ ) {
					cloneCopyEvent( srcElements[ i ], destElements[ i ] );
				}
			} else {
				cloneCopyEvent( elem, clone );
			}
		}

		// Preserve script evaluation history
		destElements = getAll( clone, "script" );
		if ( destElements.length > 0 ) {
			setGlobalEval( destElements, !inPage && getAll( elem, "script" ) );
		}

		// Return the cloned set
		return clone;
	},

	cleanData: function( elems ) {
		var data, elem, type,
			special = jQuery.event.special,
			i = 0;

		for ( ; ( elem = elems[ i ] ) !== undefined; i++ ) {
			if ( acceptData( elem ) ) {
				if ( ( data = elem[ dataPriv.expando ] ) ) {
					if ( data.events ) {
						for ( type in data.events ) {
							if ( special[ type ] ) {
								jQuery.event.remove( elem, type );

							// This is a shortcut to avoid jQuery.event.remove's overhead
							} else {
								jQuery.removeEvent( elem, type, data.handle );
							}
						}
					}

					// Support: Chrome <=35 - 45+
					// Assign undefined instead of using delete, see Data#remove
					elem[ dataPriv.expando ] = undefined;
				}
				if ( elem[ dataUser.expando ] ) {

					// Support: Chrome <=35 - 45+
					// Assign undefined instead of using delete, see Data#remove
					elem[ dataUser.expando ] = undefined;
				}
			}
		}
	}
} );

jQuery.fn.extend( {
	detach: function( selector ) {
		return remove( this, selector, true );
	},

	remove: function( selector ) {
		return remove( this, selector );
	},

	text: function( value ) {
		return access( this, function( value ) {
			return value === undefined ?
				jQuery.text( this ) :
				this.empty().each( function() {
					if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
						this.textContent = value;
					}
				} );
		}, null, value, arguments.length );
	},

	append: function() {
		return domManip( this, arguments, function( elem ) {
			if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
				var target = manipulationTarget( this, elem );
				target.appendChild( elem );
			}
		} );
	},

	prepend: function() {
		return domManip( this, arguments, function( elem ) {
			if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
				var target = manipulationTarget( this, elem );
				target.insertBefore( elem, target.firstChild );
			}
		} );
	},

	before: function() {
		return domManip( this, arguments, function( elem ) {
			if ( this.parentNode ) {
				this.parentNode.insertBefore( elem, this );
			}
		} );
	},

	after: function() {
		return domManip( this, arguments, function( elem ) {
			if ( this.parentNode ) {
				this.parentNode.insertBefore( elem, this.nextSibling );
			}
		} );
	},

	empty: function() {
		var elem,
			i = 0;

		for ( ; ( elem = this[ i ] ) != null; i++ ) {
			if ( elem.nodeType === 1 ) {

				// Prevent memory leaks
				jQuery.cleanData( getAll( elem, false ) );

				// Remove any remaining nodes
				elem.textContent = "";
			}
		}

		return this;
	},

	clone: function( dataAndEvents, deepDataAndEvents ) {
		dataAndEvents = dataAndEvents == null ? false : dataAndEvents;
		deepDataAndEvents = deepDataAndEvents == null ? dataAndEvents : deepDataAndEvents;

		return this.map( function() {
			return jQuery.clone( this, dataAndEvents, deepDataAndEvents );
		} );
	},

	html: function( value ) {
		return access( this, function( value ) {
			var elem = this[ 0 ] || {},
				i = 0,
				l = this.length;

			if ( value === undefined && elem.nodeType === 1 ) {
				return elem.innerHTML;
			}

			// See if we can take a shortcut and just use innerHTML
			if ( typeof value === "string" && !rnoInnerhtml.test( value ) &&
				!wrapMap[ ( rtagName.exec( value ) || [ "", "" ] )[ 1 ].toLowerCase() ] ) {

				value = jQuery.htmlPrefilter( value );

				try {
					for ( ; i < l; i++ ) {
						elem = this[ i ] || {};

						// Remove element nodes and prevent memory leaks
						if ( elem.nodeType === 1 ) {
							jQuery.cleanData( getAll( elem, false ) );
							elem.innerHTML = value;
						}
					}

					elem = 0;

				// If using innerHTML throws an exception, use the fallback method
				} catch ( e ) {}
			}

			if ( elem ) {
				this.empty().append( value );
			}
		}, null, value, arguments.length );
	},

	replaceWith: function() {
		var ignored = [];

		// Make the changes, replacing each non-ignored context element with the new content
		return domManip( this, arguments, function( elem ) {
			var parent = this.parentNode;

			if ( jQuery.inArray( this, ignored ) < 0 ) {
				jQuery.cleanData( getAll( this ) );
				if ( parent ) {
					parent.replaceChild( elem, this );
				}
			}

		// Force callback invocation
		}, ignored );
	}
} );

jQuery.each( {
	appendTo: "append",
	prependTo: "prepend",
	insertBefore: "before",
	insertAfter: "after",
	replaceAll: "replaceWith"
}, function( name, original ) {
	jQuery.fn[ name ] = function( selector ) {
		var elems,
			ret = [],
			insert = jQuery( selector ),
			last = insert.length - 1,
			i = 0;

		for ( ; i <= last; i++ ) {
			elems = i === last ? this : this.clone( true );
			jQuery( insert[ i ] )[ original ]( elems );

			// Support: Android <=4.0 only, PhantomJS 1 only
			// .get() because push.apply(_, arraylike) throws on ancient WebKit
			push.apply( ret, elems.get() );
		}

		return this.pushStack( ret );
	};
} );
var rnumnonpx = new RegExp( "^(" + pnum + ")(?!px)[a-z%]+$", "i" );

var getStyles = function( elem ) {

		// Support: IE <=11 only, Firefox <=30 (#15098, #14150)
		// IE throws on elements created in popups
		// FF meanwhile throws on frame elements through "defaultView.getComputedStyle"
		var view = elem.ownerDocument.defaultView;

		if ( !view || !view.opener ) {
			view = window;
		}

		return view.getComputedStyle( elem );
	};

var swap = function( elem, options, callback ) {
	var ret, name,
		old = {};

	// Remember the old values, and insert the new ones
	for ( name in options ) {
		old[ name ] = elem.style[ name ];
		elem.style[ name ] = options[ name ];
	}

	ret = callback.call( elem );

	// Revert the old values
	for ( name in options ) {
		elem.style[ name ] = old[ name ];
	}

	return ret;
};


var rboxStyle = new RegExp( cssExpand.join( "|" ), "i" );



( function() {

	// Executing both pixelPosition & boxSizingReliable tests require only one layout
	// so they're executed at the same time to save the second computation.
	function computeStyleTests() {

		// This is a singleton, we need to execute it only once
		if ( !div ) {
			return;
		}

		container.style.cssText = "position:absolute;left:-11111px;width:60px;" +
			"margin-top:1px;padding:0;border:0";
		div.style.cssText =
			"position:relative;display:block;box-sizing:border-box;overflow:scroll;" +
			"margin:auto;border:1px;padding:1px;" +
			"width:60%;top:1%";
		documentElement.appendChild( container ).appendChild( div );

		var divStyle = window.getComputedStyle( div );
		pixelPositionVal = divStyle.top !== "1%";

		// Support: Android 4.0 - 4.3 only, Firefox <=3 - 44
		reliableMarginLeftVal = roundPixelMeasures( divStyle.marginLeft ) === 12;

		// Support: Android 4.0 - 4.3 only, Safari <=9.1 - 10.1, iOS <=7.0 - 9.3
		// Some styles come back with percentage values, even though they shouldn't
		div.style.right = "60%";
		pixelBoxStylesVal = roundPixelMeasures( divStyle.right ) === 36;

		// Support: IE 9 - 11 only
		// Detect misreporting of content dimensions for box-sizing:border-box elements
		boxSizingReliableVal = roundPixelMeasures( divStyle.width ) === 36;

		// Support: IE 9 only
		// Detect overflow:scroll screwiness (gh-3699)
		// Support: Chrome <=64
		// Don't get tricked when zoom affects offsetWidth (gh-4029)
		div.style.position = "absolute";
		scrollboxSizeVal = roundPixelMeasures( div.offsetWidth / 3 ) === 12;

		documentElement.removeChild( container );

		// Nullify the div so it wouldn't be stored in the memory and
		// it will also be a sign that checks already performed
		div = null;
	}

	function roundPixelMeasures( measure ) {
		return Math.round( parseFloat( measure ) );
	}

	var pixelPositionVal, boxSizingReliableVal, scrollboxSizeVal, pixelBoxStylesVal,
		reliableTrDimensionsVal, reliableMarginLeftVal,
		container = document.createElement( "div" ),
		div = document.createElement( "div" );

	// Finish early in limited (non-browser) environments
	if ( !div.style ) {
		return;
	}

	// Support: IE <=9 - 11 only
	// Style of cloned element affects source element cloned (#8908)
	div.style.backgroundClip = "content-box";
	div.cloneNode( true ).style.backgroundClip = "";
	support.clearCloneStyle = div.style.backgroundClip === "content-box";

	jQuery.extend( support, {
		boxSizingReliable: function() {
			computeStyleTests();
			return boxSizingReliableVal;
		},
		pixelBoxStyles: function() {
			computeStyleTests();
			return pixelBoxStylesVal;
		},
		pixelPosition: function() {
			computeStyleTests();
			return pixelPositionVal;
		},
		reliableMarginLeft: function() {
			computeStyleTests();
			return reliableMarginLeftVal;
		},
		scrollboxSize: function() {
			computeStyleTests();
			return scrollboxSizeVal;
		},

		// Support: IE 9 - 11+, Edge 15 - 18+
		// IE/Edge misreport `getComputedStyle` of table rows with width/height
		// set in CSS while `offset*` properties report correct values.
		// Behavior in IE 9 is more subtle than in newer versions & it passes
		// some versions of this test; make sure not to make it pass there!
		reliableTrDimensions: function() {
			var table, tr, trChild, trStyle;
			if ( reliableTrDimensionsVal == null ) {
				table = document.createElement( "table" );
				tr = document.createElement( "tr" );
				trChild = document.createElement( "div" );

				table.style.cssText = "position:absolute;left:-11111px";
				tr.style.height = "1px";
				trChild.style.height = "9px";

				documentElement
					.appendChild( table )
					.appendChild( tr )
					.appendChild( trChild );

				trStyle = window.getComputedStyle( tr );
				reliableTrDimensionsVal = parseInt( trStyle.height ) > 3;

				documentElement.removeChild( table );
			}
			return reliableTrDimensionsVal;
		}
	} );
} )();


function curCSS( elem, name, computed ) {
	var width, minWidth, maxWidth, ret,

		// Support: Firefox 51+
		// Retrieving style before computed somehow
		// fixes an issue with getting wrong values
		// on detached elements
		style = elem.style;

	computed = computed || getStyles( elem );

	// getPropertyValue is needed for:
	//   .css('filter') (IE 9 only, #12537)
	//   .css('--customProperty) (#3144)
	if ( computed ) {
		ret = computed.getPropertyValue( name ) || computed[ name ];

		if ( ret === "" && !isAttached( elem ) ) {
			ret = jQuery.style( elem, name );
		}

		// A tribute to the "awesome hack by Dean Edwards"
		// Android Browser returns percentage for some values,
		// but width seems to be reliably pixels.
		// This is against the CSSOM draft spec:
		// https://drafts.csswg.org/cssom/#resolved-values
		if ( !support.pixelBoxStyles() && rnumnonpx.test( ret ) && rboxStyle.test( name ) ) {

			// Remember the original values
			width = style.width;
			minWidth = style.minWidth;
			maxWidth = style.maxWidth;

			// Put in the new values to get a computed value out
			style.minWidth = style.maxWidth = style.width = ret;
			ret = computed.width;

			// Revert the changed values
			style.width = width;
			style.minWidth = minWidth;
			style.maxWidth = maxWidth;
		}
	}

	return ret !== undefined ?

		// Support: IE <=9 - 11 only
		// IE returns zIndex value as an integer.
		ret + "" :
		ret;
}


function addGetHookIf( conditionFn, hookFn ) {

	// Define the hook, we'll check on the first run if it's really needed.
	return {
		get: function() {
			if ( conditionFn() ) {

				// Hook not needed (or it's not possible to use it due
				// to missing dependency), remove it.
				delete this.get;
				return;
			}

			// Hook needed; redefine it so that the support test is not executed again.
			return ( this.get = hookFn ).apply( this, arguments );
		}
	};
}


var cssPrefixes = [ "Webkit", "Moz", "ms" ],
	emptyStyle = document.createElement( "div" ).style,
	vendorProps = {};

// Return a vendor-prefixed property or undefined
function vendorPropName( name ) {

	// Check for vendor prefixed names
	var capName = name[ 0 ].toUpperCase() + name.slice( 1 ),
		i = cssPrefixes.length;

	while ( i-- ) {
		name = cssPrefixes[ i ] + capName;
		if ( name in emptyStyle ) {
			return name;
		}
	}
}

// Return a potentially-mapped jQuery.cssProps or vendor prefixed property
function finalPropName( name ) {
	var final = jQuery.cssProps[ name ] || vendorProps[ name ];

	if ( final ) {
		return final;
	}
	if ( name in emptyStyle ) {
		return name;
	}
	return vendorProps[ name ] = vendorPropName( name ) || name;
}


var

	// Swappable if display is none or starts with table
	// except "table", "table-cell", or "table-caption"
	// See here for display values: https://developer.mozilla.org/en-US/docs/CSS/display
	rdisplayswap = /^(none|table(?!-c[ea]).+)/,
	rcustomProp = /^--/,
	cssShow = { position: "absolute", visibility: "hidden", display: "block" },
	cssNormalTransform = {
		letterSpacing: "0",
		fontWeight: "400"
	};

function setPositiveNumber( _elem, value, subtract ) {

	// Any relative (+/-) values have already been
	// normalized at this point
	var matches = rcssNum.exec( value );
	return matches ?

		// Guard against undefined "subtract", e.g., when used as in cssHooks
		Math.max( 0, matches[ 2 ] - ( subtract || 0 ) ) + ( matches[ 3 ] || "px" ) :
		value;
}

function boxModelAdjustment( elem, dimension, box, isBorderBox, styles, computedVal ) {
	var i = dimension === "width" ? 1 : 0,
		extra = 0,
		delta = 0;

	// Adjustment may not be necessary
	if ( box === ( isBorderBox ? "border" : "content" ) ) {
		return 0;
	}

	for ( ; i < 4; i += 2 ) {

		// Both box models exclude margin
		if ( box === "margin" ) {
			delta += jQuery.css( elem, box + cssExpand[ i ], true, styles );
		}

		// If we get here with a content-box, we're seeking "padding" or "border" or "margin"
		if ( !isBorderBox ) {

			// Add padding
			delta += jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );

			// For "border" or "margin", add border
			if ( box !== "padding" ) {
				delta += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );

			// But still keep track of it otherwise
			} else {
				extra += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
			}

		// If we get here with a border-box (content + padding + border), we're seeking "content" or
		// "padding" or "margin"
		} else {

			// For "content", subtract padding
			if ( box === "content" ) {
				delta -= jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
			}

			// For "content" or "padding", subtract border
			if ( box !== "margin" ) {
				delta -= jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
			}
		}
	}

	// Account for positive content-box scroll gutter when requested by providing computedVal
	if ( !isBorderBox && computedVal >= 0 ) {

		// offsetWidth/offsetHeight is a rounded sum of content, padding, scroll gutter, and border
		// Assuming integer scroll gutter, subtract the rest and round down
		delta += Math.max( 0, Math.ceil(
			elem[ "offset" + dimension[ 0 ].toUpperCase() + dimension.slice( 1 ) ] -
			computedVal -
			delta -
			extra -
			0.5

		// If offsetWidth/offsetHeight is unknown, then we can't determine content-box scroll gutter
		// Use an explicit zero to avoid NaN (gh-3964)
		) ) || 0;
	}

	return delta;
}

function getWidthOrHeight( elem, dimension, extra ) {

	// Start with computed style
	var styles = getStyles( elem ),

		// To avoid forcing a reflow, only fetch boxSizing if we need it (gh-4322).
		// Fake content-box until we know it's needed to know the true value.
		boxSizingNeeded = !support.boxSizingReliable() || extra,
		isBorderBox = boxSizingNeeded &&
			jQuery.css( elem, "boxSizing", false, styles ) === "border-box",
		valueIsBorderBox = isBorderBox,

		val = curCSS( elem, dimension, styles ),
		offsetProp = "offset" + dimension[ 0 ].toUpperCase() + dimension.slice( 1 );

	// Support: Firefox <=54
	// Return a confounding non-pixel value or feign ignorance, as appropriate.
	if ( rnumnonpx.test( val ) ) {
		if ( !extra ) {
			return val;
		}
		val = "auto";
	}


	// Support: IE 9 - 11 only
	// Use offsetWidth/offsetHeight for when box sizing is unreliable.
	// In those cases, the computed value can be trusted to be border-box.
	if ( ( !support.boxSizingReliable() && isBorderBox ||

		// Support: IE 10 - 11+, Edge 15 - 18+
		// IE/Edge misreport `getComputedStyle` of table rows with width/height
		// set in CSS while `offset*` properties report correct values.
		// Interestingly, in some cases IE 9 doesn't suffer from this issue.
		!support.reliableTrDimensions() && nodeName( elem, "tr" ) ||

		// Fall back to offsetWidth/offsetHeight when value is "auto"
		// This happens for inline elements with no explicit setting (gh-3571)
		val === "auto" ||

		// Support: Android <=4.1 - 4.3 only
		// Also use offsetWidth/offsetHeight for misreported inline dimensions (gh-3602)
		!parseFloat( val ) && jQuery.css( elem, "display", false, styles ) === "inline" ) &&

		// Make sure the element is visible & connected
		elem.getClientRects().length ) {

		isBorderBox = jQuery.css( elem, "boxSizing", false, styles ) === "border-box";

		// Where available, offsetWidth/offsetHeight approximate border box dimensions.
		// Where not available (e.g., SVG), assume unreliable box-sizing and interpret the
		// retrieved value as a content box dimension.
		valueIsBorderBox = offsetProp in elem;
		if ( valueIsBorderBox ) {
			val = elem[ offsetProp ];
		}
	}

	// Normalize "" and auto
	val = parseFloat( val ) || 0;

	// Adjust for the element's box model
	return ( val +
		boxModelAdjustment(
			elem,
			dimension,
			extra || ( isBorderBox ? "border" : "content" ),
			valueIsBorderBox,
			styles,

			// Provide the current computed size to request scroll gutter calculation (gh-3589)
			val
		)
	) + "px";
}

jQuery.extend( {

	// Add in style property hooks for overriding the default
	// behavior of getting and setting a style property
	cssHooks: {
		opacity: {
			get: function( elem, computed ) {
				if ( computed ) {

					// We should always get a number back from opacity
					var ret = curCSS( elem, "opacity" );
					return ret === "" ? "1" : ret;
				}
			}
		}
	},

	// Don't automatically add "px" to these possibly-unitless properties
	cssNumber: {
		"animationIterationCount": true,
		"columnCount": true,
		"fillOpacity": true,
		"flexGrow": true,
		"flexShrink": true,
		"fontWeight": true,
		"gridArea": true,
		"gridColumn": true,
		"gridColumnEnd": true,
		"gridColumnStart": true,
		"gridRow": true,
		"gridRowEnd": true,
		"gridRowStart": true,
		"lineHeight": true,
		"opacity": true,
		"order": true,
		"orphans": true,
		"widows": true,
		"zIndex": true,
		"zoom": true
	},

	// Add in properties whose names you wish to fix before
	// setting or getting the value
	cssProps: {},

	// Get and set the style property on a DOM Node
	style: function( elem, name, value, extra ) {

		// Don't set styles on text and comment nodes
		if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style ) {
			return;
		}

		// Make sure that we're working with the right name
		var ret, type, hooks,
			origName = camelCase( name ),
			isCustomProp = rcustomProp.test( name ),
			style = elem.style;

		// Make sure that we're working with the right name. We don't
		// want to query the value if it is a CSS custom property
		// since they are user-defined.
		if ( !isCustomProp ) {
			name = finalPropName( origName );
		}

		// Gets hook for the prefixed version, then unprefixed version
		hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];

		// Check if we're setting a value
		if ( value !== undefined ) {
			type = typeof value;

			// Convert "+=" or "-=" to relative numbers (#7345)
			if ( type === "string" && ( ret = rcssNum.exec( value ) ) && ret[ 1 ] ) {
				value = adjustCSS( elem, name, ret );

				// Fixes bug #9237
				type = "number";
			}

			// Make sure that null and NaN values aren't set (#7116)
			if ( value == null || value !== value ) {
				return;
			}

			// If a number was passed in, add the unit (except for certain CSS properties)
			// The isCustomProp check can be removed in jQuery 4.0 when we only auto-append
			// "px" to a few hardcoded values.
			if ( type === "number" && !isCustomProp ) {
				value += ret && ret[ 3 ] || ( jQuery.cssNumber[ origName ] ? "" : "px" );
			}

			// background-* props affect original clone's values
			if ( !support.clearCloneStyle && value === "" && name.indexOf( "background" ) === 0 ) {
				style[ name ] = "inherit";
			}

			// If a hook was provided, use that value, otherwise just set the specified value
			if ( !hooks || !( "set" in hooks ) ||
				( value = hooks.set( elem, value, extra ) ) !== undefined ) {

				if ( isCustomProp ) {
					style.setProperty( name, value );
				} else {
					style[ name ] = value;
				}
			}

		} else {

			// If a hook was provided get the non-computed value from there
			if ( hooks && "get" in hooks &&
				( ret = hooks.get( elem, false, extra ) ) !== undefined ) {

				return ret;
			}

			// Otherwise just get the value from the style object
			return style[ name ];
		}
	},

	css: function( elem, name, extra, styles ) {
		var val, num, hooks,
			origName = camelCase( name ),
			isCustomProp = rcustomProp.test( name );

		// Make sure that we're working with the right name. We don't
		// want to modify the value if it is a CSS custom property
		// since they are user-defined.
		if ( !isCustomProp ) {
			name = finalPropName( origName );
		}

		// Try prefixed name followed by the unprefixed name
		hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];

		// If a hook was provided get the computed value from there
		if ( hooks && "get" in hooks ) {
			val = hooks.get( elem, true, extra );
		}

		// Otherwise, if a way to get the computed value exists, use that
		if ( val === undefined ) {
			val = curCSS( elem, name, styles );
		}

		// Convert "normal" to computed value
		if ( val === "normal" && name in cssNormalTransform ) {
			val = cssNormalTransform[ name ];
		}

		// Make numeric if forced or a qualifier was provided and val looks numeric
		if ( extra === "" || extra ) {
			num = parseFloat( val );
			return extra === true || isFinite( num ) ? num || 0 : val;
		}

		return val;
	}
} );

jQuery.each( [ "height", "width" ], function( _i, dimension ) {
	jQuery.cssHooks[ dimension ] = {
		get: function( elem, computed, extra ) {
			if ( computed ) {

				// Certain elements can have dimension info if we invisibly show them
				// but it must have a current display style that would benefit
				return rdisplayswap.test( jQuery.css( elem, "display" ) ) &&

					// Support: Safari 8+
					// Table columns in Safari have non-zero offsetWidth & zero
					// getBoundingClientRect().width unless display is changed.
					// Support: IE <=11 only
					// Running getBoundingClientRect on a disconnected node
					// in IE throws an error.
					( !elem.getClientRects().length || !elem.getBoundingClientRect().width ) ?
						swap( elem, cssShow, function() {
							return getWidthOrHeight( elem, dimension, extra );
						} ) :
						getWidthOrHeight( elem, dimension, extra );
			}
		},

		set: function( elem, value, extra ) {
			var matches,
				styles = getStyles( elem ),

				// Only read styles.position if the test has a chance to fail
				// to avoid forcing a reflow.
				scrollboxSizeBuggy = !support.scrollboxSize() &&
					styles.position === "absolute",

				// To avoid forcing a reflow, only fetch boxSizing if we need it (gh-3991)
				boxSizingNeeded = scrollboxSizeBuggy || extra,
				isBorderBox = boxSizingNeeded &&
					jQuery.css( elem, "boxSizing", false, styles ) === "border-box",
				subtract = extra ?
					boxModelAdjustment(
						elem,
						dimension,
						extra,
						isBorderBox,
						styles
					) :
					0;

			// Account for unreliable border-box dimensions by comparing offset* to computed and
			// faking a content-box to get border and padding (gh-3699)
			if ( isBorderBox && scrollboxSizeBuggy ) {
				subtract -= Math.ceil(
					elem[ "offset" + dimension[ 0 ].toUpperCase() + dimension.slice( 1 ) ] -
					parseFloat( styles[ dimension ] ) -
					boxModelAdjustment( elem, dimension, "border", false, styles ) -
					0.5
				);
			}

			// Convert to pixels if value adjustment is needed
			if ( subtract && ( matches = rcssNum.exec( value ) ) &&
				( matches[ 3 ] || "px" ) !== "px" ) {

				elem.style[ dimension ] = value;
				value = jQuery.css( elem, dimension );
			}

			return setPositiveNumber( elem, value, subtract );
		}
	};
} );

jQuery.cssHooks.marginLeft = addGetHookIf( support.reliableMarginLeft,
	function( elem, computed ) {
		if ( computed ) {
			return ( parseFloat( curCSS( elem, "marginLeft" ) ) ||
				elem.getBoundingClientRect().left -
					swap( elem, { marginLeft: 0 }, function() {
						return elem.getBoundingClientRect().left;
					} )
				) + "px";
		}
	}
);

// These hooks are used by animate to expand properties
jQuery.each( {
	margin: "",
	padding: "",
	border: "Width"
}, function( prefix, suffix ) {
	jQuery.cssHooks[ prefix + suffix ] = {
		expand: function( value ) {
			var i = 0,
				expanded = {},

				// Assumes a single number if not a string
				parts = typeof value === "string" ? value.split( " " ) : [ value ];

			for ( ; i < 4; i++ ) {
				expanded[ prefix + cssExpand[ i ] + suffix ] =
					parts[ i ] || parts[ i - 2 ] || parts[ 0 ];
			}

			return expanded;
		}
	};

	if ( prefix !== "margin" ) {
		jQuery.cssHooks[ prefix + suffix ].set = setPositiveNumber;
	}
} );

jQuery.fn.extend( {
	css: function( name, value ) {
		return access( this, function( elem, name, value ) {
			var styles, len,
				map = {},
				i = 0;

			if ( Array.isArray( name ) ) {
				styles = getStyles( elem );
				len = name.length;

				for ( ; i < len; i++ ) {
					map[ name[ i ] ] = jQuery.css( elem, name[ i ], false, styles );
				}

				return map;
			}

			return value !== undefined ?
				jQuery.style( elem, name, value ) :
				jQuery.css( elem, name );
		}, name, value, arguments.length > 1 );
	}
} );


function Tween( elem, options, prop, end, easing ) {
	return new Tween.prototype.init( elem, options, prop, end, easing );
}
jQuery.Tween = Tween;

Tween.prototype = {
	constructor: Tween,
	init: function( elem, options, prop, end, easing, unit ) {
		this.elem = elem;
		this.prop = prop;
		this.easing = easing || jQuery.easing._default;
		this.options = options;
		this.start = this.now = this.cur();
		this.end = end;
		this.unit = unit || ( jQuery.cssNumber[ prop ] ? "" : "px" );
	},
	cur: function() {
		var hooks = Tween.propHooks[ this.prop ];

		return hooks && hooks.get ?
			hooks.get( this ) :
			Tween.propHooks._default.get( this );
	},
	run: function( percent ) {
		var eased,
			hooks = Tween.propHooks[ this.prop ];

		if ( this.options.duration ) {
			this.pos = eased = jQuery.easing[ this.easing ](
				percent, this.options.duration * percent, 0, 1, this.options.duration
			);
		} else {
			this.pos = eased = percent;
		}
		this.now = ( this.end - this.start ) * eased + this.start;

		if ( this.options.step ) {
			this.options.step.call( this.elem, this.now, this );
		}

		if ( hooks && hooks.set ) {
			hooks.set( this );
		} else {
			Tween.propHooks._default.set( this );
		}
		return this;
	}
};

Tween.prototype.init.prototype = Tween.prototype;

Tween.propHooks = {
	_default: {
		get: function( tween ) {
			var result;

			// Use a property on the element directly when it is not a DOM element,
			// or when there is no matching style property that exists.
			if ( tween.elem.nodeType !== 1 ||
				tween.elem[ tween.prop ] != null && tween.elem.style[ tween.prop ] == null ) {
				return tween.elem[ tween.prop ];
			}

			// Passing an empty string as a 3rd parameter to .css will automatically
			// attempt a parseFloat and fallback to a string if the parse fails.
			// Simple values such as "10px" are parsed to Float;
			// complex values such as "rotate(1rad)" are returned as-is.
			result = jQuery.css( tween.elem, tween.prop, "" );

			// Empty strings, null, undefined and "auto" are converted to 0.
			return !result || result === "auto" ? 0 : result;
		},
		set: function( tween ) {

			// Use step hook for back compat.
			// Use cssHook if its there.
			// Use .style if available and use plain properties where available.
			if ( jQuery.fx.step[ tween.prop ] ) {
				jQuery.fx.step[ tween.prop ]( tween );
			} else if ( tween.elem.nodeType === 1 && (
					jQuery.cssHooks[ tween.prop ] ||
					tween.elem.style[ finalPropName( tween.prop ) ] != null ) ) {
				jQuery.style( tween.elem, tween.prop, tween.now + tween.unit );
			} else {
				tween.elem[ tween.prop ] = tween.now;
			}
		}
	}
};

// Support: IE <=9 only
// Panic based approach to setting things on disconnected nodes
Tween.propHooks.scrollTop = Tween.propHooks.scrollLeft = {
	set: function( tween ) {
		if ( tween.elem.nodeType && tween.elem.parentNode ) {
			tween.elem[ tween.prop ] = tween.now;
		}
	}
};

jQuery.easing = {
	linear: function( p ) {
		return p;
	},
	swing: function( p ) {
		return 0.5 - Math.cos( p * Math.PI ) / 2;
	},
	_default: "swing"
};

jQuery.fx = Tween.prototype.init;

// Back compat <1.8 extension point
jQuery.fx.step = {};




var
	fxNow, inProgress,
	rfxtypes = /^(?:toggle|show|hide)$/,
	rrun = /queueHooks$/;

function schedule() {
	if ( inProgress ) {
		if ( document.hidden === false && window.requestAnimationFrame ) {
			window.requestAnimationFrame( schedule );
		} else {
			window.setTimeout( schedule, jQuery.fx.interval );
		}

		jQuery.fx.tick();
	}
}

// Animations created synchronously will run synchronously
function createFxNow() {
	window.setTimeout( function() {
		fxNow = undefined;
	} );
	return ( fxNow = Date.now() );
}

// Generate parameters to create a standard animation
function genFx( type, includeWidth ) {
	var which,
		i = 0,
		attrs = { height: type };

	// If we include width, step value is 1 to do all cssExpand values,
	// otherwise step value is 2 to skip over Left and Right
	includeWidth = includeWidth ? 1 : 0;
	for ( ; i < 4; i += 2 - includeWidth ) {
		which = cssExpand[ i ];
		attrs[ "margin" + which ] = attrs[ "padding" + which ] = type;
	}

	if ( includeWidth ) {
		attrs.opacity = attrs.width = type;
	}

	return attrs;
}

function createTween( value, prop, animation ) {
	var tween,
		collection = ( Animation.tweeners[ prop ] || [] ).concat( Animation.tweeners[ "*" ] ),
		index = 0,
		length = collection.length;
	for ( ; index < length; index++ ) {
		if ( ( tween = collection[ index ].call( animation, prop, value ) ) ) {

			// We're done with this property
			return tween;
		}
	}
}

function defaultPrefilter( elem, props, opts ) {
	var prop, value, toggle, hooks, oldfire, propTween, restoreDisplay, display,
		isBox = "width" in props || "height" in props,
		anim = this,
		orig = {},
		style = elem.style,
		hidden = elem.nodeType && isHiddenWithinTree( elem ),
		dataShow = dataPriv.get( elem, "fxshow" );

	// Queue-skipping animations hijack the fx hooks
	if ( !opts.queue ) {
		hooks = jQuery._queueHooks( elem, "fx" );
		if ( hooks.unqueued == null ) {
			hooks.unqueued = 0;
			oldfire = hooks.empty.fire;
			hooks.empty.fire = function() {
				if ( !hooks.unqueued ) {
					oldfire();
				}
			};
		}
		hooks.unqueued++;

		anim.always( function() {

			// Ensure the complete handler is called before this completes
			anim.always( function() {
				hooks.unqueued--;
				if ( !jQuery.queue( elem, "fx" ).length ) {
					hooks.empty.fire();
				}
			} );
		} );
	}

	// Detect show/hide animations
	for ( prop in props ) {
		value = props[ prop ];
		if ( rfxtypes.test( value ) ) {
			delete props[ prop ];
			toggle = toggle || value === "toggle";
			if ( value === ( hidden ? "hide" : "show" ) ) {

				// Pretend to be hidden if this is a "show" and
				// there is still data from a stopped show/hide
				if ( value === "show" && dataShow && dataShow[ prop ] !== undefined ) {
					hidden = true;

				// Ignore all other no-op show/hide data
				} else {
					continue;
				}
			}
			orig[ prop ] = dataShow && dataShow[ prop ] || jQuery.style( elem, prop );
		}
	}

	// Bail out if this is a no-op like .hide().hide()
	propTween = !jQuery.isEmptyObject( props );
	if ( !propTween && jQuery.isEmptyObject( orig ) ) {
		return;
	}

	// Restrict "overflow" and "display" styles during box animations
	if ( isBox && elem.nodeType === 1 ) {

		// Support: IE <=9 - 11, Edge 12 - 15
		// Record all 3 overflow attributes because IE does not infer the shorthand
		// from identically-valued overflowX and overflowY and Edge just mirrors
		// the overflowX value there.
		opts.overflow = [ style.overflow, style.overflowX, style.overflowY ];

		// Identify a display type, preferring old show/hide data over the CSS cascade
		restoreDisplay = dataShow && dataShow.display;
		if ( restoreDisplay == null ) {
			restoreDisplay = dataPriv.get( elem, "display" );
		}
		display = jQuery.css( elem, "display" );
		if ( display === "none" ) {
			if ( restoreDisplay ) {
				display = restoreDisplay;
			} else {

				// Get nonempty value(s) by temporarily forcing visibility
				showHide( [ elem ], true );
				restoreDisplay = elem.style.display || restoreDisplay;
				display = jQuery.css( elem, "display" );
				showHide( [ elem ] );
			}
		}

		// Animate inline elements as inline-block
		if ( display === "inline" || display === "inline-block" && restoreDisplay != null ) {
			if ( jQuery.css( elem, "float" ) === "none" ) {

				// Restore the original display value at the end of pure show/hide animations
				if ( !propTween ) {
					anim.done( function() {
						style.display = restoreDisplay;
					} );
					if ( restoreDisplay == null ) {
						display = style.display;
						restoreDisplay = display === "none" ? "" : display;
					}
				}
				style.display = "inline-block";
			}
		}
	}

	if ( opts.overflow ) {
		style.overflow = "hidden";
		anim.always( function() {
			style.overflow = opts.overflow[ 0 ];
			style.overflowX = opts.overflow[ 1 ];
			style.overflowY = opts.overflow[ 2 ];
		} );
	}

	// Implement show/hide animations
	propTween = false;
	for ( prop in orig ) {

		// General show/hide setup for this element animation
		if ( !propTween ) {
			if ( dataShow ) {
				if ( "hidden" in dataShow ) {
					hidden = dataShow.hidden;
				}
			} else {
				dataShow = dataPriv.access( elem, "fxshow", { display: restoreDisplay } );
			}

			// Store hidden/visible for toggle so `.stop().toggle()` "reverses"
			if ( toggle ) {
				dataShow.hidden = !hidden;
			}

			// Show elements before animating them
			if ( hidden ) {
				showHide( [ elem ], true );
			}

			/* eslint-disable no-loop-func */

			anim.done( function() {

			/* eslint-enable no-loop-func */

				// The final step of a "hide" animation is actually hiding the element
				if ( !hidden ) {
					showHide( [ elem ] );
				}
				dataPriv.remove( elem, "fxshow" );
				for ( prop in orig ) {
					jQuery.style( elem, prop, orig[ prop ] );
				}
			} );
		}

		// Per-property setup
		propTween = createTween( hidden ? dataShow[ prop ] : 0, prop, anim );
		if ( !( prop in dataShow ) ) {
			dataShow[ prop ] = propTween.start;
			if ( hidden ) {
				propTween.end = propTween.start;
				propTween.start = 0;
			}
		}
	}
}

function propFilter( props, specialEasing ) {
	var index, name, easing, value, hooks;

	// camelCase, specialEasing and expand cssHook pass
	for ( index in props ) {
		name = camelCase( index );
		easing = specialEasing[ name ];
		value = props[ index ];
		if ( Array.isArray( value ) ) {
			easing = value[ 1 ];
			value = props[ index ] = value[ 0 ];
		}

		if ( index !== name ) {
			props[ name ] = value;
			delete props[ index ];
		}

		hooks = jQuery.cssHooks[ name ];
		if ( hooks && "expand" in hooks ) {
			value = hooks.expand( value );
			delete props[ name ];

			// Not quite $.extend, this won't overwrite existing keys.
			// Reusing 'index' because we have the correct "name"
			for ( index in value ) {
				if ( !( index in props ) ) {
					props[ index ] = value[ index ];
					specialEasing[ index ] = easing;
				}
			}
		} else {
			specialEasing[ name ] = easing;
		}
	}
}

function Animation( elem, properties, options ) {
	var result,
		stopped,
		index = 0,
		length = Animation.prefilters.length,
		deferred = jQuery.Deferred().always( function() {

			// Don't match elem in the :animated selector
			delete tick.elem;
		} ),
		tick = function() {
			if ( stopped ) {
				return false;
			}
			var currentTime = fxNow || createFxNow(),
				remaining = Math.max( 0, animation.startTime + animation.duration - currentTime ),

				// Support: Android 2.3 only
				// Archaic crash bug won't allow us to use `1 - ( 0.5 || 0 )` (#12497)
				temp = remaining / animation.duration || 0,
				percent = 1 - temp,
				index = 0,
				length = animation.tweens.length;

			for ( ; index < length; index++ ) {
				animation.tweens[ index ].run( percent );
			}

			deferred.notifyWith( elem, [ animation, percent, remaining ] );

			// If there's more to do, yield
			if ( percent < 1 && length ) {
				return remaining;
			}

			// If this was an empty animation, synthesize a final progress notification
			if ( !length ) {
				deferred.notifyWith( elem, [ animation, 1, 0 ] );
			}

			// Resolve the animation and report its conclusion
			deferred.resolveWith( elem, [ animation ] );
			return false;
		},
		animation = deferred.promise( {
			elem: elem,
			props: jQuery.extend( {}, properties ),
			opts: jQuery.extend( true, {
				specialEasing: {},
				easing: jQuery.easing._default
			}, options ),
			originalProperties: properties,
			originalOptions: options,
			startTime: fxNow || createFxNow(),
			duration: options.duration,
			tweens: [],
			createTween: function( prop, end ) {
				var tween = jQuery.Tween( elem, animation.opts, prop, end,
						animation.opts.specialEasing[ prop ] || animation.opts.easing );
				animation.tweens.push( tween );
				return tween;
			},
			stop: function( gotoEnd ) {
				var index = 0,

					// If we are going to the end, we want to run all the tweens
					// otherwise we skip this part
					length = gotoEnd ? animation.tweens.length : 0;
				if ( stopped ) {
					return this;
				}
				stopped = true;
				for ( ; index < length; index++ ) {
					animation.tweens[ index ].run( 1 );
				}

				// Resolve when we played the last frame; otherwise, reject
				if ( gotoEnd ) {
					deferred.notifyWith( elem, [ animation, 1, 0 ] );
					deferred.resolveWith( elem, [ animation, gotoEnd ] );
				} else {
					deferred.rejectWith( elem, [ animation, gotoEnd ] );
				}
				return this;
			}
		} ),
		props = animation.props;

	propFilter( props, animation.opts.specialEasing );

	for ( ; index < length; index++ ) {
		result = Animation.prefilters[ index ].call( animation, elem, props, animation.opts );
		if ( result ) {
			if ( isFunction( result.stop ) ) {
				jQuery._queueHooks( animation.elem, animation.opts.queue ).stop =
					result.stop.bind( result );
			}
			return result;
		}
	}

	jQuery.map( props, createTween, animation );

	if ( isFunction( animation.opts.start ) ) {
		animation.opts.start.call( elem, animation );
	}

	// Attach callbacks from options
	animation
		.progress( animation.opts.progress )
		.done( animation.opts.done, animation.opts.complete )
		.fail( animation.opts.fail )
		.always( animation.opts.always );

	jQuery.fx.timer(
		jQuery.extend( tick, {
			elem: elem,
			anim: animation,
			queue: animation.opts.queue
		} )
	);

	return animation;
}

jQuery.Animation = jQuery.extend( Animation, {

	tweeners: {
		"*": [ function( prop, value ) {
			var tween = this.createTween( prop, value );
			adjustCSS( tween.elem, prop, rcssNum.exec( value ), tween );
			return tween;
		} ]
	},

	tweener: function( props, callback ) {
		if ( isFunction( props ) ) {
			callback = props;
			props = [ "*" ];
		} else {
			props = props.match( rnothtmlwhite );
		}

		var prop,
			index = 0,
			length = props.length;

		for ( ; index < length; index++ ) {
			prop = props[ index ];
			Animation.tweeners[ prop ] = Animation.tweeners[ prop ] || [];
			Animation.tweeners[ prop ].unshift( callback );
		}
	},

	prefilters: [ defaultPrefilter ],

	prefilter: function( callback, prepend ) {
		if ( prepend ) {
			Animation.prefilters.unshift( callback );
		} else {
			Animation.prefilters.push( callback );
		}
	}
} );

jQuery.speed = function( speed, easing, fn ) {
	var opt = speed && typeof speed === "object" ? jQuery.extend( {}, speed ) : {
		complete: fn || !fn && easing ||
			isFunction( speed ) && speed,
		duration: speed,
		easing: fn && easing || easing && !isFunction( easing ) && easing
	};

	// Go to the end state if fx are off
	if ( jQuery.fx.off ) {
		opt.duration = 0;

	} else {
		if ( typeof opt.duration !== "number" ) {
			if ( opt.duration in jQuery.fx.speeds ) {
				opt.duration = jQuery.fx.speeds[ opt.duration ];

			} else {
				opt.duration = jQuery.fx.speeds._default;
			}
		}
	}

	// Normalize opt.queue - true/undefined/null -> "fx"
	if ( opt.queue == null || opt.queue === true ) {
		opt.queue = "fx";
	}

	// Queueing
	opt.old = opt.complete;

	opt.complete = function() {
		if ( isFunction( opt.old ) ) {
			opt.old.call( this );
		}

		if ( opt.queue ) {
			jQuery.dequeue( this, opt.queue );
		}
	};

	return opt;
};

jQuery.fn.extend( {
	fadeTo: function( speed, to, easing, callback ) {

		// Show any hidden elements after setting opacity to 0
		return this.filter( isHiddenWithinTree ).css( "opacity", 0 ).show()

			// Animate to the value specified
			.end().animate( { opacity: to }, speed, easing, callback );
	},
	animate: function( prop, speed, easing, callback ) {
		var empty = jQuery.isEmptyObject( prop ),
			optall = jQuery.speed( speed, easing, callback ),
			doAnimation = function() {

				// Operate on a copy of prop so per-property easing won't be lost
				var anim = Animation( this, jQuery.extend( {}, prop ), optall );

				// Empty animations, or finishing resolves immediately
				if ( empty || dataPriv.get( this, "finish" ) ) {
					anim.stop( true );
				}
			};
			doAnimation.finish = doAnimation;

		return empty || optall.queue === false ?
			this.each( doAnimation ) :
			this.queue( optall.queue, doAnimation );
	},
	stop: function( type, clearQueue, gotoEnd ) {
		var stopQueue = function( hooks ) {
			var stop = hooks.stop;
			delete hooks.stop;
			stop( gotoEnd );
		};

		if ( typeof type !== "string" ) {
			gotoEnd = clearQueue;
			clearQueue = type;
			type = undefined;
		}
		if ( clearQueue ) {
			this.queue( type || "fx", [] );
		}

		return this.each( function() {
			var dequeue = true,
				index = type != null && type + "queueHooks",
				timers = jQuery.timers,
				data = dataPriv.get( this );

			if ( index ) {
				if ( data[ index ] && data[ index ].stop ) {
					stopQueue( data[ index ] );
				}
			} else {
				for ( index in data ) {
					if ( data[ index ] && data[ index ].stop && rrun.test( index ) ) {
						stopQueue( data[ index ] );
					}
				}
			}

			for ( index = timers.length; index--; ) {
				if ( timers[ index ].elem === this &&
					( type == null || timers[ index ].queue === type ) ) {

					timers[ index ].anim.stop( gotoEnd );
					dequeue = false;
					timers.splice( index, 1 );
				}
			}

			// Start the next in the queue if the last step wasn't forced.
			// Timers currently will call their complete callbacks, which
			// will dequeue but only if they were gotoEnd.
			if ( dequeue || !gotoEnd ) {
				jQuery.dequeue( this, type );
			}
		} );
	},
	finish: function( type ) {
		if ( type !== false ) {
			type = type || "fx";
		}
		return this.each( function() {
			var index,
				data = dataPriv.get( this ),
				queue = data[ type + "queue" ],
				hooks = data[ type + "queueHooks" ],
				timers = jQuery.timers,
				length = queue ? queue.length : 0;

			// Enable finishing flag on private data
			data.finish = true;

			// Empty the queue first
			jQuery.queue( this, type, [] );

			if ( hooks && hooks.stop ) {
				hooks.stop.call( this, true );
			}

			// Look for any active animations, and finish them
			for ( index = timers.length; index--; ) {
				if ( timers[ index ].elem === this && timers[ index ].queue === type ) {
					timers[ index ].anim.stop( true );
					timers.splice( index, 1 );
				}
			}

			// Look for any animations in the old queue and finish them
			for ( index = 0; index < length; index++ ) {
				if ( queue[ index ] && queue[ index ].finish ) {
					queue[ index ].finish.call( this );
				}
			}

			// Turn off finishing flag
			delete data.finish;
		} );
	}
} );

jQuery.each( [ "toggle", "show", "hide" ], function( _i, name ) {
	var cssFn = jQuery.fn[ name ];
	jQuery.fn[ name ] = function( speed, easing, callback ) {
		return speed == null || typeof speed === "boolean" ?
			cssFn.apply( this, arguments ) :
			this.animate( genFx( name, true ), speed, easing, callback );
	};
} );

// Generate shortcuts for custom animations
jQuery.each( {
	slideDown: genFx( "show" ),
	slideUp: genFx( "hide" ),
	slideToggle: genFx( "toggle" ),
	fadeIn: { opacity: "show" },
	fadeOut: { opacity: "hide" },
	fadeToggle: { opacity: "toggle" }
}, function( name, props ) {
	jQuery.fn[ name ] = function( speed, easing, callback ) {
		return this.animate( props, speed, easing, callback );
	};
} );

jQuery.timers = [];
jQuery.fx.tick = function() {
	var timer,
		i = 0,
		timers = jQuery.timers;

	fxNow = Date.now();

	for ( ; i < timers.length; i++ ) {
		timer = timers[ i ];

		// Run the timer and safely remove it when done (allowing for external removal)
		if ( !timer() && timers[ i ] === timer ) {
			timers.splice( i--, 1 );
		}
	}

	if ( !timers.length ) {
		jQuery.fx.stop();
	}
	fxNow = undefined;
};

jQuery.fx.timer = function( timer ) {
	jQuery.timers.push( timer );
	jQuery.fx.start();
};

jQuery.fx.interval = 13;
jQuery.fx.start = function() {
	if ( inProgress ) {
		return;
	}

	inProgress = true;
	schedule();
};

jQuery.fx.stop = function() {
	inProgress = null;
};

jQuery.fx.speeds = {
	slow: 600,
	fast: 200,

	// Default speed
	_default: 400
};


// Based off of the plugin by Clint Helfers, with permission.
// https://web.archive.org/web/20100324014747/http://blindsignals.com/index.php/2009/07/jquery-delay/
jQuery.fn.delay = function( time, type ) {
	time = jQuery.fx ? jQuery.fx.speeds[ time ] || time : time;
	type = type || "fx";

	return this.queue( type, function( next, hooks ) {
		var timeout = window.setTimeout( next, time );
		hooks.stop = function() {
			window.clearTimeout( timeout );
		};
	} );
};


( function() {
	var input = document.createElement( "input" ),
		select = document.createElement( "select" ),
		opt = select.appendChild( document.createElement( "option" ) );

	input.type = "checkbox";

	// Support: Android <=4.3 only
	// Default value for a checkbox should be "on"
	support.checkOn = input.value !== "";

	// Support: IE <=11 only
	// Must access selectedIndex to make default options select
	support.optSelected = opt.selected;

	// Support: IE <=11 only
	// An input loses its value after becoming a radio
	input = document.createElement( "input" );
	input.value = "t";
	input.type = "radio";
	support.radioValue = input.value === "t";
} )();


var boolHook,
	attrHandle = jQuery.expr.attrHandle;

jQuery.fn.extend( {
	attr: function( name, value ) {
		return access( this, jQuery.attr, name, value, arguments.length > 1 );
	},

	removeAttr: function( name ) {
		return this.each( function() {
			jQuery.removeAttr( this, name );
		} );
	}
} );

jQuery.extend( {
	attr: function( elem, name, value ) {
		var ret, hooks,
			nType = elem.nodeType;

		// Don't get/set attributes on text, comment and attribute nodes
		if ( nType === 3 || nType === 8 || nType === 2 ) {
			return;
		}

		// Fallback to prop when attributes are not supported
		if ( typeof elem.getAttribute === "undefined" ) {
			return jQuery.prop( elem, name, value );
		}

		// Attribute hooks are determined by the lowercase version
		// Grab necessary hook if one is defined
		if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {
			hooks = jQuery.attrHooks[ name.toLowerCase() ] ||
				( jQuery.expr.match.bool.test( name ) ? boolHook : undefined );
		}

		if ( value !== undefined ) {
			if ( value === null ) {
				jQuery.removeAttr( elem, name );
				return;
			}

			if ( hooks && "set" in hooks &&
				( ret = hooks.set( elem, value, name ) ) !== undefined ) {
				return ret;
			}

			elem.setAttribute( name, value + "" );
			return value;
		}

		if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) {
			return ret;
		}

		ret = jQuery.find.attr( elem, name );

		// Non-existent attributes return null, we normalize to undefined
		return ret == null ? undefined : ret;
	},

	attrHooks: {
		type: {
			set: function( elem, value ) {
				if ( !support.radioValue && value === "radio" &&
					nodeName( elem, "input" ) ) {
					var val = elem.value;
					elem.setAttribute( "type", value );
					if ( val ) {
						elem.value = val;
					}
					return value;
				}
			}
		}
	},

	removeAttr: function( elem, value ) {
		var name,
			i = 0,

			// Attribute names can contain non-HTML whitespace characters
			// https://html.spec.whatwg.org/multipage/syntax.html#attributes-2
			attrNames = value && value.match( rnothtmlwhite );

		if ( attrNames && elem.nodeType === 1 ) {
			while ( ( name = attrNames[ i++ ] ) ) {
				elem.removeAttribute( name );
			}
		}
	}
} );

// Hooks for boolean attributes
boolHook = {
	set: function( elem, value, name ) {
		if ( value === false ) {

			// Remove boolean attributes when set to false
			jQuery.removeAttr( elem, name );
		} else {
			elem.setAttribute( name, name );
		}
		return name;
	}
};

jQuery.each( jQuery.expr.match.bool.source.match( /\w+/g ), function( _i, name ) {
	var getter = attrHandle[ name ] || jQuery.find.attr;

	attrHandle[ name ] = function( elem, name, isXML ) {
		var ret, handle,
			lowercaseName = name.toLowerCase();

		if ( !isXML ) {

			// Avoid an infinite loop by temporarily removing this function from the getter
			handle = attrHandle[ lowercaseName ];
			attrHandle[ lowercaseName ] = ret;
			ret = getter( elem, name, isXML ) != null ?
				lowercaseName :
				null;
			attrHandle[ lowercaseName ] = handle;
		}
		return ret;
	};
} );




var rfocusable = /^(?:input|select|textarea|button)$/i,
	rclickable = /^(?:a|area)$/i;

jQuery.fn.extend( {
	prop: function( name, value ) {
		return access( this, jQuery.prop, name, value, arguments.length > 1 );
	},

	removeProp: function( name ) {
		return this.each( function() {
			delete this[ jQuery.propFix[ name ] || name ];
		} );
	}
} );

jQuery.extend( {
	prop: function( elem, name, value ) {
		var ret, hooks,
			nType = elem.nodeType;

		// Don't get/set properties on text, comment and attribute nodes
		if ( nType === 3 || nType === 8 || nType === 2 ) {
			return;
		}

		if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {

			// Fix name and attach hooks
			name = jQuery.propFix[ name ] || name;
			hooks = jQuery.propHooks[ name ];
		}

		if ( value !== undefined ) {
			if ( hooks && "set" in hooks &&
				( ret = hooks.set( elem, value, name ) ) !== undefined ) {
				return ret;
			}

			return ( elem[ name ] = value );
		}

		if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) {
			return ret;
		}

		return elem[ name ];
	},

	propHooks: {
		tabIndex: {
			get: function( elem ) {

				// Support: IE <=9 - 11 only
				// elem.tabIndex doesn't always return the
				// correct value when it hasn't been explicitly set
				// https://web.archive.org/web/20141116233347/http://fluidproject.org/blog/2008/01/09/getting-setting-and-removing-tabindex-values-with-javascript/
				// Use proper attribute retrieval(#12072)
				var tabindex = jQuery.find.attr( elem, "tabindex" );

				if ( tabindex ) {
					return parseInt( tabindex, 10 );
				}

				if (
					rfocusable.test( elem.nodeName ) ||
					rclickable.test( elem.nodeName ) &&
					elem.href
				) {
					return 0;
				}

				return -1;
			}
		}
	},

	propFix: {
		"for": "htmlFor",
		"class": "className"
	}
} );

// Support: IE <=11 only
// Accessing the selectedIndex property
// forces the browser to respect setting selected
// on the option
// The getter ensures a default option is selected
// when in an optgroup
// eslint rule "no-unused-expressions" is disabled for this code
// since it considers such accessions noop
if ( !support.optSelected ) {
	jQuery.propHooks.selected = {
		get: function( elem ) {

			/* eslint no-unused-expressions: "off" */

			var parent = elem.parentNode;
			if ( parent && parent.parentNode ) {
				parent.parentNode.selectedIndex;
			}
			return null;
		},
		set: function( elem ) {

			/* eslint no-unused-expressions: "off" */

			var parent = elem.parentNode;
			if ( parent ) {
				parent.selectedIndex;

				if ( parent.parentNode ) {
					parent.parentNode.selectedIndex;
				}
			}
		}
	};
}

jQuery.each( [
	"tabIndex",
	"readOnly",
	"maxLength",
	"cellSpacing",
	"cellPadding",
	"rowSpan",
	"colSpan",
	"useMap",
	"frameBorder",
	"contentEditable"
], function() {
	jQuery.propFix[ this.toLowerCase() ] = this;
} );




	// Strip and collapse whitespace according to HTML spec
	// https://infra.spec.whatwg.org/#strip-and-collapse-ascii-whitespace
	function stripAndCollapse( value ) {
		var tokens = value.match( rnothtmlwhite ) || [];
		return tokens.join( " " );
	}


function getClass( elem ) {
	return elem.getAttribute && elem.getAttribute( "class" ) || "";
}

function classesToArray( value ) {
	if ( Array.isArray( value ) ) {
		return value;
	}
	if ( typeof value === "string" ) {
		return value.match( rnothtmlwhite ) || [];
	}
	return [];
}

jQuery.fn.extend( {
	addClass: function( value ) {
		var classes, elem, cur, curValue, clazz, j, finalValue,
			i = 0;

		if ( isFunction( value ) ) {
			return this.each( function( j ) {
				jQuery( this ).addClass( value.call( this, j, getClass( this ) ) );
			} );
		}

		classes = classesToArray( value );

		if ( classes.length ) {
			while ( ( elem = this[ i++ ] ) ) {
				curValue = getClass( elem );
				cur = elem.nodeType === 1 && ( " " + stripAndCollapse( curValue ) + " " );

				if ( cur ) {
					j = 0;
					while ( ( clazz = classes[ j++ ] ) ) {
						if ( cur.indexOf( " " + clazz + " " ) < 0 ) {
							cur += clazz + " ";
						}
					}

					// Only assign if different to avoid unneeded rendering.
					finalValue = stripAndCollapse( cur );
					if ( curValue !== finalValue ) {
						elem.setAttribute( "class", finalValue );
					}
				}
			}
		}

		return this;
	},

	removeClass: function( value ) {
		var classes, elem, cur, curValue, clazz, j, finalValue,
			i = 0;

		if ( isFunction( value ) ) {
			return this.each( function( j ) {
				jQuery( this ).removeClass( value.call( this, j, getClass( this ) ) );
			} );
		}

		if ( !arguments.length ) {
			return this.attr( "class", "" );
		}

		classes = classesToArray( value );

		if ( classes.length ) {
			while ( ( elem = this[ i++ ] ) ) {
				curValue = getClass( elem );

				// This expression is here for better compressibility (see addClass)
				cur = elem.nodeType === 1 && ( " " + stripAndCollapse( curValue ) + " " );

				if ( cur ) {
					j = 0;
					while ( ( clazz = classes[ j++ ] ) ) {

						// Remove *all* instances
						while ( cur.indexOf( " " + clazz + " " ) > -1 ) {
							cur = cur.replace( " " + clazz + " ", " " );
						}
					}

					// Only assign if different to avoid unneeded rendering.
					finalValue = stripAndCollapse( cur );
					if ( curValue !== finalValue ) {
						elem.setAttribute( "class", finalValue );
					}
				}
			}
		}

		return this;
	},

	toggleClass: function( value, stateVal ) {
		var type = typeof value,
			isValidValue = type === "string" || Array.isArray( value );

		if ( typeof stateVal === "boolean" && isValidValue ) {
			return stateVal ? this.addClass( value ) : this.removeClass( value );
		}

		if ( isFunction( value ) ) {
			return this.each( function( i ) {
				jQuery( this ).toggleClass(
					value.call( this, i, getClass( this ), stateVal ),
					stateVal
				);
			} );
		}

		return this.each( function() {
			var className, i, self, classNames;

			if ( isValidValue ) {

				// Toggle individual class names
				i = 0;
				self = jQuery( this );
				classNames = classesToArray( value );

				while ( ( className = classNames[ i++ ] ) ) {

					// Check each className given, space separated list
					if ( self.hasClass( className ) ) {
						self.removeClass( className );
					} else {
						self.addClass( className );
					}
				}

			// Toggle whole class name
			} else if ( value === undefined || type === "boolean" ) {
				className = getClass( this );
				if ( className ) {

					// Store className if set
					dataPriv.set( this, "__className__", className );
				}

				// If the element has a class name or if we're passed `false`,
				// then remove the whole classname (if there was one, the above saved it).
				// Otherwise bring back whatever was previously saved (if anything),
				// falling back to the empty string if nothing was stored.
				if ( this.setAttribute ) {
					this.setAttribute( "class",
						className || value === false ?
						"" :
						dataPriv.get( this, "__className__" ) || ""
					);
				}
			}
		} );
	},

	hasClass: function( selector ) {
		var className, elem,
			i = 0;

		className = " " + selector + " ";
		while ( ( elem = this[ i++ ] ) ) {
			if ( elem.nodeType === 1 &&
				( " " + stripAndCollapse( getClass( elem ) ) + " " ).indexOf( className ) > -1 ) {
					return true;
			}
		}

		return false;
	}
} );




var rreturn = /\r/g;

jQuery.fn.extend( {
	val: function( value ) {
		var hooks, ret, valueIsFunction,
			elem = this[ 0 ];

		if ( !arguments.length ) {
			if ( elem ) {
				hooks = jQuery.valHooks[ elem.type ] ||
					jQuery.valHooks[ elem.nodeName.toLowerCase() ];

				if ( hooks &&
					"get" in hooks &&
					( ret = hooks.get( elem, "value" ) ) !== undefined
				) {
					return ret;
				}

				ret = elem.value;

				// Handle most common string cases
				if ( typeof ret === "string" ) {
					return ret.replace( rreturn, "" );
				}

				// Handle cases where value is null/undef or number
				return ret == null ? "" : ret;
			}

			return;
		}

		valueIsFunction = isFunction( value );

		return this.each( function( i ) {
			var val;

			if ( this.nodeType !== 1 ) {
				return;
			}

			if ( valueIsFunction ) {
				val = value.call( this, i, jQuery( this ).val() );
			} else {
				val = value;
			}

			// Treat null/undefined as ""; convert numbers to string
			if ( val == null ) {
				val = "";

			} else if ( typeof val === "number" ) {
				val += "";

			} else if ( Array.isArray( val ) ) {
				val = jQuery.map( val, function( value ) {
					return value == null ? "" : value + "";
				} );
			}

			hooks = jQuery.valHooks[ this.type ] || jQuery.valHooks[ this.nodeName.toLowerCase() ];

			// If set returns undefined, fall back to normal setting
			if ( !hooks || !( "set" in hooks ) || hooks.set( this, val, "value" ) === undefined ) {
				this.value = val;
			}
		} );
	}
} );

jQuery.extend( {
	valHooks: {
		option: {
			get: function( elem ) {

				var val = jQuery.find.attr( elem, "value" );
				return val != null ?
					val :

					// Support: IE <=10 - 11 only
					// option.text throws exceptions (#14686, #14858)
					// Strip and collapse whitespace
					// https://html.spec.whatwg.org/#strip-and-collapse-whitespace
					stripAndCollapse( jQuery.text( elem ) );
			}
		},
		select: {
			get: function( elem ) {
				var value, option, i,
					options = elem.options,
					index = elem.selectedIndex,
					one = elem.type === "select-one",
					values = one ? null : [],
					max = one ? index + 1 : options.length;

				if ( index < 0 ) {
					i = max;

				} else {
					i = one ? index : 0;
				}

				// Loop through all the selected options
				for ( ; i < max; i++ ) {
					option = options[ i ];

					// Support: IE <=9 only
					// IE8-9 doesn't update selected after form reset (#2551)
					if ( ( option.selected || i === index ) &&

							// Don't return options that are disabled or in a disabled optgroup
							!option.disabled &&
							( !option.parentNode.disabled ||
								!nodeName( option.parentNode, "optgroup" ) ) ) {

						// Get the specific value for the option
						value = jQuery( option ).val();

						// We don't need an array for one selects
						if ( one ) {
							return value;
						}

						// Multi-Selects return an array
						values.push( value );
					}
				}

				return values;
			},

			set: function( elem, value ) {
				var optionSet, option,
					options = elem.options,
					values = jQuery.makeArray( value ),
					i = options.length;

				while ( i-- ) {
					option = options[ i ];

					/* eslint-disable no-cond-assign */

					if ( option.selected =
						jQuery.inArray( jQuery.valHooks.option.get( option ), values ) > -1
					) {
						optionSet = true;
					}

					/* eslint-enable no-cond-assign */
				}

				// Force browsers to behave consistently when non-matching value is set
				if ( !optionSet ) {
					elem.selectedIndex = -1;
				}
				return values;
			}
		}
	}
} );

// Radios and checkboxes getter/setter
jQuery.each( [ "radio", "checkbox" ], function() {
	jQuery.valHooks[ this ] = {
		set: function( elem, value ) {
			if ( Array.isArray( value ) ) {
				return ( elem.checked = jQuery.inArray( jQuery( elem ).val(), value ) > -1 );
			}
		}
	};
	if ( !support.checkOn ) {
		jQuery.valHooks[ this ].get = function( elem ) {
			return elem.getAttribute( "value" ) === null ? "on" : elem.value;
		};
	}
} );




// Return jQuery for attributes-only inclusion


support.focusin = "onfocusin" in window;


var rfocusMorph = /^(?:focusinfocus|focusoutblur)$/,
	stopPropagationCallback = function( e ) {
		e.stopPropagation();
	};

jQuery.extend( jQuery.event, {

	trigger: function( event, data, elem, onlyHandlers ) {

		var i, cur, tmp, bubbleType, ontype, handle, special, lastElement,
			eventPath = [ elem || document ],
			type = hasOwn.call( event, "type" ) ? event.type : event,
			namespaces = hasOwn.call( event, "namespace" ) ? event.namespace.split( "." ) : [];

		cur = lastElement = tmp = elem = elem || document;

		// Don't do events on text and comment nodes
		if ( elem.nodeType === 3 || elem.nodeType === 8 ) {
			return;
		}

		// focus/blur morphs to focusin/out; ensure we're not firing them right now
		if ( rfocusMorph.test( type + jQuery.event.triggered ) ) {
			return;
		}

		if ( type.indexOf( "." ) > -1 ) {

			// Namespaced trigger; create a regexp to match event type in handle()
			namespaces = type.split( "." );
			type = namespaces.shift();
			namespaces.sort();
		}
		ontype = type.indexOf( ":" ) < 0 && "on" + type;

		// Caller can pass in a jQuery.Event object, Object, or just an event type string
		event = event[ jQuery.expando ] ?
			event :
			new jQuery.Event( type, typeof event === "object" && event );

		// Trigger bitmask: & 1 for native handlers; & 2 for jQuery (always true)
		event.isTrigger = onlyHandlers ? 2 : 3;
		event.namespace = namespaces.join( "." );
		event.rnamespace = event.namespace ?
			new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" ) :
			null;

		// Clean up the event in case it is being reused
		event.result = undefined;
		if ( !event.target ) {
			event.target = elem;
		}

		// Clone any incoming data and prepend the event, creating the handler arg list
		data = data == null ?
			[ event ] :
			jQuery.makeArray( data, [ event ] );

		// Allow special events to draw outside the lines
		special = jQuery.event.special[ type ] || {};
		if ( !onlyHandlers && special.trigger && special.trigger.apply( elem, data ) === false ) {
			return;
		}

		// Determine event propagation path in advance, per W3C events spec (#9951)
		// Bubble up to document, then to window; watch for a global ownerDocument var (#9724)
		if ( !onlyHandlers && !special.noBubble && !isWindow( elem ) ) {

			bubbleType = special.delegateType || type;
			if ( !rfocusMorph.test( bubbleType + type ) ) {
				cur = cur.parentNode;
			}
			for ( ; cur; cur = cur.parentNode ) {
				eventPath.push( cur );
				tmp = cur;
			}

			// Only add window if we got to document (e.g., not plain obj or detached DOM)
			if ( tmp === ( elem.ownerDocument || document ) ) {
				eventPath.push( tmp.defaultView || tmp.parentWindow || window );
			}
		}

		// Fire handlers on the event path
		i = 0;
		while ( ( cur = eventPath[ i++ ] ) && !event.isPropagationStopped() ) {
			lastElement = cur;
			event.type = i > 1 ?
				bubbleType :
				special.bindType || type;

			// jQuery handler
			handle = (
					dataPriv.get( cur, "events" ) || Object.create( null )
				)[ event.type ] &&
				dataPriv.get( cur, "handle" );
			if ( handle ) {
				handle.apply( cur, data );
			}

			// Native handler
			handle = ontype && cur[ ontype ];
			if ( handle && handle.apply && acceptData( cur ) ) {
				event.result = handle.apply( cur, data );
				if ( event.result === false ) {
					event.preventDefault();
				}
			}
		}
		event.type = type;

		// If nobody prevented the default action, do it now
		if ( !onlyHandlers && !event.isDefaultPrevented() ) {

			if ( ( !special._default ||
				special._default.apply( eventPath.pop(), data ) === false ) &&
				acceptData( elem ) ) {

				// Call a native DOM method on the target with the same name as the event.
				// Don't do default actions on window, that's where global variables be (#6170)
				if ( ontype && isFunction( elem[ type ] ) && !isWindow( elem ) ) {

					// Don't re-trigger an onFOO event when we call its FOO() method
					tmp = elem[ ontype ];

					if ( tmp ) {
						elem[ ontype ] = null;
					}

					// Prevent re-triggering of the same event, since we already bubbled it above
					jQuery.event.triggered = type;

					if ( event.isPropagationStopped() ) {
						lastElement.addEventListener( type, stopPropagationCallback );
					}

					elem[ type ]();

					if ( event.isPropagationStopped() ) {
						lastElement.removeEventListener( type, stopPropagationCallback );
					}

					jQuery.event.triggered = undefined;

					if ( tmp ) {
						elem[ ontype ] = tmp;
					}
				}
			}
		}

		return event.result;
	},

	// Piggyback on a donor event to simulate a different one
	// Used only for `focus(in | out)` events
	simulate: function( type, elem, event ) {
		var e = jQuery.extend(
			new jQuery.Event(),
			event,
			{
				type: type,
				isSimulated: true
			}
		);

		jQuery.event.trigger( e, null, elem );
	}

} );

jQuery.fn.extend( {

	trigger: function( type, data ) {
		return this.each( function() {
			jQuery.event.trigger( type, data, this );
		} );
	},
	triggerHandler: function( type, data ) {
		var elem = this[ 0 ];
		if ( elem ) {
			return jQuery.event.trigger( type, data, elem, true );
		}
	}
} );


// Support: Firefox <=44
// Firefox doesn't have focus(in | out) events
// Related ticket - https://bugzilla.mozilla.org/show_bug.cgi?id=687787
//
// Support: Chrome <=48 - 49, Safari <=9.0 - 9.1
// focus(in | out) events fire after focus & blur events,
// which is spec violation - http://www.w3.org/TR/DOM-Level-3-Events/#events-focusevent-event-order
// Related ticket - https://bugs.chromium.org/p/chromium/issues/detail?id=449857
if ( !support.focusin ) {
	jQuery.each( { focus: "focusin", blur: "focusout" }, function( orig, fix ) {

		// Attach a single capturing handler on the document while someone wants focusin/focusout
		var handler = function( event ) {
			jQuery.event.simulate( fix, event.target, jQuery.event.fix( event ) );
		};

		jQuery.event.special[ fix ] = {
			setup: function() {

				// Handle: regular nodes (via `this.ownerDocument`), window
				// (via `this.document`) & document (via `this`).
				var doc = this.ownerDocument || this.document || this,
					attaches = dataPriv.access( doc, fix );

				if ( !attaches ) {
					doc.addEventListener( orig, handler, true );
				}
				dataPriv.access( doc, fix, ( attaches || 0 ) + 1 );
			},
			teardown: function() {
				var doc = this.ownerDocument || this.document || this,
					attaches = dataPriv.access( doc, fix ) - 1;

				if ( !attaches ) {
					doc.removeEventListener( orig, handler, true );
					dataPriv.remove( doc, fix );

				} else {
					dataPriv.access( doc, fix, attaches );
				}
			}
		};
	} );
}
var location = window.location;

var nonce = { guid: Date.now() };

var rquery = ( /\?/ );



// Cross-browser xml parsing
jQuery.parseXML = function( data ) {
	var xml;
	if ( !data || typeof data !== "string" ) {
		return null;
	}

	// Support: IE 9 - 11 only
	// IE throws on parseFromString with invalid input.
	try {
		xml = ( new window.DOMParser() ).parseFromString( data, "text/xml" );
	} catch ( e ) {
		xml = undefined;
	}

	if ( !xml || xml.getElementsByTagName( "parsererror" ).length ) {
		jQuery.error( "Invalid XML: " + data );
	}
	return xml;
};


var
	rbracket = /\[\]$/,
	rCRLF = /\r?\n/g,
	rsubmitterTypes = /^(?:submit|button|image|reset|file)$/i,
	rsubmittable = /^(?:input|select|textarea|keygen)/i;

function buildParams( prefix, obj, traditional, add ) {
	var name;

	if ( Array.isArray( obj ) ) {

		// Serialize array item.
		jQuery.each( obj, function( i, v ) {
			if ( traditional || rbracket.test( prefix ) ) {

				// Treat each array item as a scalar.
				add( prefix, v );

			} else {

				// Item is non-scalar (array or object), encode its numeric index.
				buildParams(
					prefix + "[" + ( typeof v === "object" && v != null ? i : "" ) + "]",
					v,
					traditional,
					add
				);
			}
		} );

	} else if ( !traditional && toType( obj ) === "object" ) {

		// Serialize object item.
		for ( name in obj ) {
			buildParams( prefix + "[" + name + "]", obj[ name ], traditional, add );
		}

	} else {

		// Serialize scalar item.
		add( prefix, obj );
	}
}

// Serialize an array of form elements or a set of
// key/values into a query string
jQuery.param = function( a, traditional ) {
	var prefix,
		s = [],
		add = function( key, valueOrFunction ) {

			// If value is a function, invoke it and use its return value
			var value = isFunction( valueOrFunction ) ?
				valueOrFunction() :
				valueOrFunction;

			s[ s.length ] = encodeURIComponent( key ) + "=" +
				encodeURIComponent( value == null ? "" : value );
		};

	if ( a == null ) {
		return "";
	}

	// If an array was passed in, assume that it is an array of form elements.
	if ( Array.isArray( a ) || ( a.jquery && !jQuery.isPlainObject( a ) ) ) {

		// Serialize the form elements
		jQuery.each( a, function() {
			add( this.name, this.value );
		} );

	} else {

		// If traditional, encode the "old" way (the way 1.3.2 or older
		// did it), otherwise encode params recursively.
		for ( prefix in a ) {
			buildParams( prefix, a[ prefix ], traditional, add );
		}
	}

	// Return the resulting serialization
	return s.join( "&" );
};

jQuery.fn.extend( {
	serialize: function() {
		return jQuery.param( this.serializeArray() );
	},
	serializeArray: function() {
		return this.map( function() {

			// Can add propHook for "elements" to filter or add form elements
			var elements = jQuery.prop( this, "elements" );
			return elements ? jQuery.makeArray( elements ) : this;
		} )
		.filter( function() {
			var type = this.type;

			// Use .is( ":disabled" ) so that fieldset[disabled] works
			return this.name && !jQuery( this ).is( ":disabled" ) &&
				rsubmittable.test( this.nodeName ) && !rsubmitterTypes.test( type ) &&
				( this.checked || !rcheckableType.test( type ) );
		} )
		.map( function( _i, elem ) {
			var val = jQuery( this ).val();

			if ( val == null ) {
				return null;
			}

			if ( Array.isArray( val ) ) {
				return jQuery.map( val, function( val ) {
					return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
				} );
			}

			return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
		} ).get();
	}
} );


var
	r20 = /%20/g,
	rhash = /#.*$/,
	rantiCache = /([?&])_=[^&]*/,
	rheaders = /^(.*?):[ \t]*([^\r\n]*)$/mg,

	// #7653, #8125, #8152: local protocol detection
	rlocalProtocol = /^(?:about|app|app-storage|.+-extension|file|res|widget):$/,
	rnoContent = /^(?:GET|HEAD)$/,
	rprotocol = /^\/\//,

	/* Prefilters
	 * 1) They are useful to introduce custom dataTypes (see ajax/jsonp.js for an example)
	 * 2) These are called:
	 *    - BEFORE asking for a transport
	 *    - AFTER param serialization (s.data is a string if s.processData is true)
	 * 3) key is the dataType
	 * 4) the catchall symbol "*" can be used
	 * 5) execution will start with transport dataType and THEN continue down to "*" if needed
	 */
	prefilters = {},

	/* Transports bindings
	 * 1) key is the dataType
	 * 2) the catchall symbol "*" can be used
	 * 3) selection will start with transport dataType and THEN go to "*" if needed
	 */
	transports = {},

	// Avoid comment-prolog char sequence (#10098); must appease lint and evade compression
	allTypes = "*/".concat( "*" ),

	// Anchor tag for parsing the document origin
	originAnchor = document.createElement( "a" );
	originAnchor.href = location.href;

// Base "constructor" for jQuery.ajaxPrefilter and jQuery.ajaxTransport
function addToPrefiltersOrTransports( structure ) {

	// dataTypeExpression is optional and defaults to "*"
	return function( dataTypeExpression, func ) {

		if ( typeof dataTypeExpression !== "string" ) {
			func = dataTypeExpression;
			dataTypeExpression = "*";
		}

		var dataType,
			i = 0,
			dataTypes = dataTypeExpression.toLowerCase().match( rnothtmlwhite ) || [];

		if ( isFunction( func ) ) {

			// For each dataType in the dataTypeExpression
			while ( ( dataType = dataTypes[ i++ ] ) ) {

				// Prepend if requested
				if ( dataType[ 0 ] === "+" ) {
					dataType = dataType.slice( 1 ) || "*";
					( structure[ dataType ] = structure[ dataType ] || [] ).unshift( func );

				// Otherwise append
				} else {
					( structure[ dataType ] = structure[ dataType ] || [] ).push( func );
				}
			}
		}
	};
}

// Base inspection function for prefilters and transports
function inspectPrefiltersOrTransports( structure, options, originalOptions, jqXHR ) {

	var inspected = {},
		seekingTransport = ( structure === transports );

	function inspect( dataType ) {
		var selected;
		inspected[ dataType ] = true;
		jQuery.each( structure[ dataType ] || [], function( _, prefilterOrFactory ) {
			var dataTypeOrTransport = prefilterOrFactory( options, originalOptions, jqXHR );
			if ( typeof dataTypeOrTransport === "string" &&
				!seekingTransport && !inspected[ dataTypeOrTransport ] ) {

				options.dataTypes.unshift( dataTypeOrTransport );
				inspect( dataTypeOrTransport );
				return false;
			} else if ( seekingTransport ) {
				return !( selected = dataTypeOrTransport );
			}
		} );
		return selected;
	}

	return inspect( options.dataTypes[ 0 ] ) || !inspected[ "*" ] && inspect( "*" );
}

// A special extend for ajax options
// that takes "flat" options (not to be deep extended)
// Fixes #9887
function ajaxExtend( target, src ) {
	var key, deep,
		flatOptions = jQuery.ajaxSettings.flatOptions || {};

	for ( key in src ) {
		if ( src[ key ] !== undefined ) {
			( flatOptions[ key ] ? target : ( deep || ( deep = {} ) ) )[ key ] = src[ key ];
		}
	}
	if ( deep ) {
		jQuery.extend( true, target, deep );
	}

	return target;
}

/* Handles responses to an ajax request:
 * - finds the right dataType (mediates between content-type and expected dataType)
 * - returns the corresponding response
 */
function ajaxHandleResponses( s, jqXHR, responses ) {

	var ct, type, finalDataType, firstDataType,
		contents = s.contents,
		dataTypes = s.dataTypes;

	// Remove auto dataType and get content-type in the process
	while ( dataTypes[ 0 ] === "*" ) {
		dataTypes.shift();
		if ( ct === undefined ) {
			ct = s.mimeType || jqXHR.getResponseHeader( "Content-Type" );
		}
	}

	// Check if we're dealing with a known content-type
	if ( ct ) {
		for ( type in contents ) {
			if ( contents[ type ] && contents[ type ].test( ct ) ) {
				dataTypes.unshift( type );
				break;
			}
		}
	}

	// Check to see if we have a response for the expected dataType
	if ( dataTypes[ 0 ] in responses ) {
		finalDataType = dataTypes[ 0 ];
	} else {

		// Try convertible dataTypes
		for ( type in responses ) {
			if ( !dataTypes[ 0 ] || s.converters[ type + " " + dataTypes[ 0 ] ] ) {
				finalDataType = type;
				break;
			}
			if ( !firstDataType ) {
				firstDataType = type;
			}
		}

		// Or just use first one
		finalDataType = finalDataType || firstDataType;
	}

	// If we found a dataType
	// We add the dataType to the list if needed
	// and return the corresponding response
	if ( finalDataType ) {
		if ( finalDataType !== dataTypes[ 0 ] ) {
			dataTypes.unshift( finalDataType );
		}
		return responses[ finalDataType ];
	}
}

/* Chain conversions given the request and the original response
 * Also sets the responseXXX fields on the jqXHR instance
 */
function ajaxConvert( s, response, jqXHR, isSuccess ) {
	var conv2, current, conv, tmp, prev,
		converters = {},

		// Work with a copy of dataTypes in case we need to modify it for conversion
		dataTypes = s.dataTypes.slice();

	// Create converters map with lowercased keys
	if ( dataTypes[ 1 ] ) {
		for ( conv in s.converters ) {
			converters[ conv.toLowerCase() ] = s.converters[ conv ];
		}
	}

	current = dataTypes.shift();

	// Convert to each sequential dataType
	while ( current ) {

		if ( s.responseFields[ current ] ) {
			jqXHR[ s.responseFields[ current ] ] = response;
		}

		// Apply the dataFilter if provided
		if ( !prev && isSuccess && s.dataFilter ) {
			response = s.dataFilter( response, s.dataType );
		}

		prev = current;
		current = dataTypes.shift();

		if ( current ) {

			// There's only work to do if current dataType is non-auto
			if ( current === "*" ) {

				current = prev;

			// Convert response if prev dataType is non-auto and differs from current
			} else if ( prev !== "*" && prev !== current ) {

				// Seek a direct converter
				conv = converters[ prev + " " + current ] || converters[ "* " + current ];

				// If none found, seek a pair
				if ( !conv ) {
					for ( conv2 in converters ) {

						// If conv2 outputs current
						tmp = conv2.split( " " );
						if ( tmp[ 1 ] === current ) {

							// If prev can be converted to accepted input
							conv = converters[ prev + " " + tmp[ 0 ] ] ||
								converters[ "* " + tmp[ 0 ] ];
							if ( conv ) {

								// Condense equivalence converters
								if ( conv === true ) {
									conv = converters[ conv2 ];

								// Otherwise, insert the intermediate dataType
								} else if ( converters[ conv2 ] !== true ) {
									current = tmp[ 0 ];
									dataTypes.unshift( tmp[ 1 ] );
								}
								break;
							}
						}
					}
				}

				// Apply converter (if not an equivalence)
				if ( conv !== true ) {

					// Unless errors are allowed to bubble, catch and return them
					if ( conv && s.throws ) {
						response = conv( response );
					} else {
						try {
							response = conv( response );
						} catch ( e ) {
							return {
								state: "parsererror",
								error: conv ? e : "No conversion from " + prev + " to " + current
							};
						}
					}
				}
			}
		}
	}

	return { state: "success", data: response };
}

jQuery.extend( {

	// Counter for holding the number of active queries
	active: 0,

	// Last-Modified header cache for next request
	lastModified: {},
	etag: {},

	ajaxSettings: {
		url: location.href,
		type: "GET",
		isLocal: rlocalProtocol.test( location.protocol ),
		global: true,
		processData: true,
		async: true,
		contentType: "application/x-www-form-urlencoded; charset=UTF-8",

		/*
		timeout: 0,
		data: null,
		dataType: null,
		username: null,
		password: null,
		cache: null,
		throws: false,
		traditional: false,
		headers: {},
		*/

		accepts: {
			"*": allTypes,
			text: "text/plain",
			html: "text/html",
			xml: "application/xml, text/xml",
			json: "application/json, text/javascript"
		},

		contents: {
			xml: /\bxml\b/,
			html: /\bhtml/,
			json: /\bjson\b/
		},

		responseFields: {
			xml: "responseXML",
			text: "responseText",
			json: "responseJSON"
		},

		// Data converters
		// Keys separate source (or catchall "*") and destination types with a single space
		converters: {

			// Convert anything to text
			"* text": String,

			// Text to html (true = no transformation)
			"text html": true,

			// Evaluate text as a json expression
			"text json": JSON.parse,

			// Parse text as xml
			"text xml": jQuery.parseXML
		},

		// For options that shouldn't be deep extended:
		// you can add your own custom options here if
		// and when you create one that shouldn't be
		// deep extended (see ajaxExtend)
		flatOptions: {
			url: true,
			context: true
		}
	},

	// Creates a full fledged settings object into target
	// with both ajaxSettings and settings fields.
	// If target is omitted, writes into ajaxSettings.
	ajaxSetup: function( target, settings ) {
		return settings ?

			// Building a settings object
			ajaxExtend( ajaxExtend( target, jQuery.ajaxSettings ), settings ) :

			// Extending ajaxSettings
			ajaxExtend( jQuery.ajaxSettings, target );
	},

	ajaxPrefilter: addToPrefiltersOrTransports( prefilters ),
	ajaxTransport: addToPrefiltersOrTransports( transports ),

	// Main method
	ajax: function( url, options ) {

		// If url is an object, simulate pre-1.5 signature
		if ( typeof url === "object" ) {
			options = url;
			url = undefined;
		}

		// Force options to be an object
		options = options || {};

		var transport,

			// URL without anti-cache param
			cacheURL,

			// Response headers
			responseHeadersString,
			responseHeaders,

			// timeout handle
			timeoutTimer,

			// Url cleanup var
			urlAnchor,

			// Request state (becomes false upon send and true upon completion)
			completed,

			// To know if global events are to be dispatched
			fireGlobals,

			// Loop variable
			i,

			// uncached part of the url
			uncached,

			// Create the final options object
			s = jQuery.ajaxSetup( {}, options ),

			// Callbacks context
			callbackContext = s.context || s,

			// Context for global events is callbackContext if it is a DOM node or jQuery collection
			globalEventContext = s.context &&
				( callbackContext.nodeType || callbackContext.jquery ) ?
					jQuery( callbackContext ) :
					jQuery.event,

			// Deferreds
			deferred = jQuery.Deferred(),
			completeDeferred = jQuery.Callbacks( "once memory" ),

			// Status-dependent callbacks
			statusCode = s.statusCode || {},

			// Headers (they are sent all at once)
			requestHeaders = {},
			requestHeadersNames = {},

			// Default abort message
			strAbort = "canceled",

			// Fake xhr
			jqXHR = {
				readyState: 0,

				// Builds headers hashtable if needed
				getResponseHeader: function( key ) {
					var match;
					if ( completed ) {
						if ( !responseHeaders ) {
							responseHeaders = {};
							while ( ( match = rheaders.exec( responseHeadersString ) ) ) {
								responseHeaders[ match[ 1 ].toLowerCase() + " " ] =
									( responseHeaders[ match[ 1 ].toLowerCase() + " " ] || [] )
										.concat( match[ 2 ] );
							}
						}
						match = responseHeaders[ key.toLowerCase() + " " ];
					}
					return match == null ? null : match.join( ", " );
				},

				// Raw string
				getAllResponseHeaders: function() {
					return completed ? responseHeadersString : null;
				},

				// Caches the header
				setRequestHeader: function( name, value ) {
					if ( completed == null ) {
						name = requestHeadersNames[ name.toLowerCase() ] =
							requestHeadersNames[ name.toLowerCase() ] || name;
						requestHeaders[ name ] = value;
					}
					return this;
				},

				// Overrides response content-type header
				overrideMimeType: function( type ) {
					if ( completed == null ) {
						s.mimeType = type;
					}
					return this;
				},

				// Status-dependent callbacks
				statusCode: function( map ) {
					var code;
					if ( map ) {
						if ( completed ) {

							// Execute the appropriate callbacks
							jqXHR.always( map[ jqXHR.status ] );
						} else {

							// Lazy-add the new callbacks in a way that preserves old ones
							for ( code in map ) {
								statusCode[ code ] = [ statusCode[ code ], map[ code ] ];
							}
						}
					}
					return this;
				},

				// Cancel the request
				abort: function( statusText ) {
					var finalText = statusText || strAbort;
					if ( transport ) {
						transport.abort( finalText );
					}
					done( 0, finalText );
					return this;
				}
			};

		// Attach deferreds
		deferred.promise( jqXHR );

		// Add protocol if not provided (prefilters might expect it)
		// Handle falsy url in the settings object (#10093: consistency with old signature)
		// We also use the url parameter if available
		s.url = ( ( url || s.url || location.href ) + "" )
			.replace( rprotocol, location.protocol + "//" );

		// Alias method option to type as per ticket #12004
		s.type = options.method || options.type || s.method || s.type;

		// Extract dataTypes list
		s.dataTypes = ( s.dataType || "*" ).toLowerCase().match( rnothtmlwhite ) || [ "" ];

		// A cross-domain request is in order when the origin doesn't match the current origin.
		if ( s.crossDomain == null ) {
			urlAnchor = document.createElement( "a" );

			// Support: IE <=8 - 11, Edge 12 - 15
			// IE throws exception on accessing the href property if url is malformed,
			// e.g. http://example.com:80x/
			try {
				urlAnchor.href = s.url;

				// Support: IE <=8 - 11 only
				// Anchor's host property isn't correctly set when s.url is relative
				urlAnchor.href = urlAnchor.href;
				s.crossDomain = originAnchor.protocol + "//" + originAnchor.host !==
					urlAnchor.protocol + "//" + urlAnchor.host;
			} catch ( e ) {

				// If there is an error parsing the URL, assume it is crossDomain,
				// it can be rejected by the transport if it is invalid
				s.crossDomain = true;
			}
		}

		// Convert data if not already a string
		if ( s.data && s.processData && typeof s.data !== "string" ) {
			s.data = jQuery.param( s.data, s.traditional );
		}

		// Apply prefilters
		inspectPrefiltersOrTransports( prefilters, s, options, jqXHR );

		// If request was aborted inside a prefilter, stop there
		if ( completed ) {
			return jqXHR;
		}

		// We can fire global events as of now if asked to
		// Don't fire events if jQuery.event is undefined in an AMD-usage scenario (#15118)
		fireGlobals = jQuery.event && s.global;

		// Watch for a new set of requests
		if ( fireGlobals && jQuery.active++ === 0 ) {
			jQuery.event.trigger( "ajaxStart" );
		}

		// Uppercase the type
		s.type = s.type.toUpperCase();

		// Determine if request has content
		s.hasContent = !rnoContent.test( s.type );

		// Save the URL in case we're toying with the If-Modified-Since
		// and/or If-None-Match header later on
		// Remove hash to simplify url manipulation
		cacheURL = s.url.replace( rhash, "" );

		// More options handling for requests with no content
		if ( !s.hasContent ) {

			// Remember the hash so we can put it back
			uncached = s.url.slice( cacheURL.length );

			// If data is available and should be processed, append data to url
			if ( s.data && ( s.processData || typeof s.data === "string" ) ) {
				cacheURL += ( rquery.test( cacheURL ) ? "&" : "?" ) + s.data;

				// #9682: remove data so that it's not used in an eventual retry
				delete s.data;
			}

			// Add or update anti-cache param if needed
			if ( s.cache === false ) {
				cacheURL = cacheURL.replace( rantiCache, "$1" );
				uncached = ( rquery.test( cacheURL ) ? "&" : "?" ) + "_=" + ( nonce.guid++ ) +
					uncached;
			}

			// Put hash and anti-cache on the URL that will be requested (gh-1732)
			s.url = cacheURL + uncached;

		// Change '%20' to '+' if this is encoded form body content (gh-2658)
		} else if ( s.data && s.processData &&
			( s.contentType || "" ).indexOf( "application/x-www-form-urlencoded" ) === 0 ) {
			s.data = s.data.replace( r20, "+" );
		}

		// Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
		if ( s.ifModified ) {
			if ( jQuery.lastModified[ cacheURL ] ) {
				jqXHR.setRequestHeader( "If-Modified-Since", jQuery.lastModified[ cacheURL ] );
			}
			if ( jQuery.etag[ cacheURL ] ) {
				jqXHR.setRequestHeader( "If-None-Match", jQuery.etag[ cacheURL ] );
			}
		}

		// Set the correct header, if data is being sent
		if ( s.data && s.hasContent && s.contentType !== false || options.contentType ) {
			jqXHR.setRequestHeader( "Content-Type", s.contentType );
		}

		// Set the Accepts header for the server, depending on the dataType
		jqXHR.setRequestHeader(
			"Accept",
			s.dataTypes[ 0 ] && s.accepts[ s.dataTypes[ 0 ] ] ?
				s.accepts[ s.dataTypes[ 0 ] ] +
					( s.dataTypes[ 0 ] !== "*" ? ", " + allTypes + "; q=0.01" : "" ) :
				s.accepts[ "*" ]
		);

		// Check for headers option
		for ( i in s.headers ) {
			jqXHR.setRequestHeader( i, s.headers[ i ] );
		}

		// Allow custom headers/mimetypes and early abort
		if ( s.beforeSend &&
			( s.beforeSend.call( callbackContext, jqXHR, s ) === false || completed ) ) {

			// Abort if not done already and return
			return jqXHR.abort();
		}

		// Aborting is no longer a cancellation
		strAbort = "abort";

		// Install callbacks on deferreds
		completeDeferred.add( s.complete );
		jqXHR.done( s.success );
		jqXHR.fail( s.error );

		// Get transport
		transport = inspectPrefiltersOrTransports( transports, s, options, jqXHR );

		// If no transport, we auto-abort
		if ( !transport ) {
			done( -1, "No Transport" );
		} else {
			jqXHR.readyState = 1;

			// Send global event
			if ( fireGlobals ) {
				globalEventContext.trigger( "ajaxSend", [ jqXHR, s ] );
			}

			// If request was aborted inside ajaxSend, stop there
			if ( completed ) {
				return jqXHR;
			}

			// Timeout
			if ( s.async && s.timeout > 0 ) {
				timeoutTimer = window.setTimeout( function() {
					jqXHR.abort( "timeout" );
				}, s.timeout );
			}

			try {
				completed = false;
				transport.send( requestHeaders, done );
			} catch ( e ) {

				// Rethrow post-completion exceptions
				if ( completed ) {
					throw e;
				}

				// Propagate others as results
				done( -1, e );
			}
		}

		// Callback for when everything is done
		function done( status, nativeStatusText, responses, headers ) {
			var isSuccess, success, error, response, modified,
				statusText = nativeStatusText;

			// Ignore repeat invocations
			if ( completed ) {
				return;
			}

			completed = true;

			// Clear timeout if it exists
			if ( timeoutTimer ) {
				window.clearTimeout( timeoutTimer );
			}

			// Dereference transport for early garbage collection
			// (no matter how long the jqXHR object will be used)
			transport = undefined;

			// Cache response headers
			responseHeadersString = headers || "";

			// Set readyState
			jqXHR.readyState = status > 0 ? 4 : 0;

			// Determine if successful
			isSuccess = status >= 200 && status < 300 || status === 304;

			// Get response data
			if ( responses ) {
				response = ajaxHandleResponses( s, jqXHR, responses );
			}

			// Use a noop converter for missing script
			if ( !isSuccess && jQuery.inArray( "script", s.dataTypes ) > -1 ) {
				s.converters[ "text script" ] = function() {};
			}

			// Convert no matter what (that way responseXXX fields are always set)
			response = ajaxConvert( s, response, jqXHR, isSuccess );

			// If successful, handle type chaining
			if ( isSuccess ) {

				// Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
				if ( s.ifModified ) {
					modified = jqXHR.getResponseHeader( "Last-Modified" );
					if ( modified ) {
						jQuery.lastModified[ cacheURL ] = modified;
					}
					modified = jqXHR.getResponseHeader( "etag" );
					if ( modified ) {
						jQuery.etag[ cacheURL ] = modified;
					}
				}

				// if no content
				if ( status === 204 || s.type === "HEAD" ) {
					statusText = "nocontent";

				// if not modified
				} else if ( status === 304 ) {
					statusText = "notmodified";

				// If we have data, let's convert it
				} else {
					statusText = response.state;
					success = response.data;
					error = response.error;
					isSuccess = !error;
				}
			} else {

				// Extract error from statusText and normalize for non-aborts
				error = statusText;
				if ( status || !statusText ) {
					statusText = "error";
					if ( status < 0 ) {
						status = 0;
					}
				}
			}

			// Set data for the fake xhr object
			jqXHR.status = status;
			jqXHR.statusText = ( nativeStatusText || statusText ) + "";

			// Success/Error
			if ( isSuccess ) {
				deferred.resolveWith( callbackContext, [ success, statusText, jqXHR ] );
			} else {
				deferred.rejectWith( callbackContext, [ jqXHR, statusText, error ] );
			}

			// Status-dependent callbacks
			jqXHR.statusCode( statusCode );
			statusCode = undefined;

			if ( fireGlobals ) {
				globalEventContext.trigger( isSuccess ? "ajaxSuccess" : "ajaxError",
					[ jqXHR, s, isSuccess ? success : error ] );
			}

			// Complete
			completeDeferred.fireWith( callbackContext, [ jqXHR, statusText ] );

			if ( fireGlobals ) {
				globalEventContext.trigger( "ajaxComplete", [ jqXHR, s ] );

				// Handle the global AJAX counter
				if ( !( --jQuery.active ) ) {
					jQuery.event.trigger( "ajaxStop" );
				}
			}
		}

		return jqXHR;
	},

	getJSON: function( url, data, callback ) {
		return jQuery.get( url, data, callback, "json" );
	},

	getScript: function( url, callback ) {
		return jQuery.get( url, undefined, callback, "script" );
	}
} );

jQuery.each( [ "get", "post" ], function( _i, method ) {
	jQuery[ method ] = function( url, data, callback, type ) {

		// Shift arguments if data argument was omitted
		if ( isFunction( data ) ) {
			type = type || callback;
			callback = data;
			data = undefined;
		}

		// The url can be an options object (which then must have .url)
		return jQuery.ajax( jQuery.extend( {
			url: url,
			type: method,
			dataType: type,
			data: data,
			success: callback
		}, jQuery.isPlainObject( url ) && url ) );
	};
} );

jQuery.ajaxPrefilter( function( s ) {
	var i;
	for ( i in s.headers ) {
		if ( i.toLowerCase() === "content-type" ) {
			s.contentType = s.headers[ i ] || "";
		}
	}
} );


jQuery._evalUrl = function( url, options, doc ) {
	return jQuery.ajax( {
		url: url,

		// Make this explicit, since user can override this through ajaxSetup (#11264)
		type: "GET",
		dataType: "script",
		cache: true,
		async: false,
		global: false,

		// Only evaluate the response if it is successful (gh-4126)
		// dataFilter is not invoked for failure responses, so using it instead
		// of the default converter is kludgy but it works.
		converters: {
			"text script": function() {}
		},
		dataFilter: function( response ) {
			jQuery.globalEval( response, options, doc );
		}
	} );
};


jQuery.fn.extend( {
	wrapAll: function( html ) {
		var wrap;

		if ( this[ 0 ] ) {
			if ( isFunction( html ) ) {
				html = html.call( this[ 0 ] );
			}

			// The elements to wrap the target around
			wrap = jQuery( html, this[ 0 ].ownerDocument ).eq( 0 ).clone( true );

			if ( this[ 0 ].parentNode ) {
				wrap.insertBefore( this[ 0 ] );
			}

			wrap.map( function() {
				var elem = this;

				while ( elem.firstElementChild ) {
					elem = elem.firstElementChild;
				}

				return elem;
			} ).append( this );
		}

		return this;
	},

	wrapInner: function( html ) {
		if ( isFunction( html ) ) {
			return this.each( function( i ) {
				jQuery( this ).wrapInner( html.call( this, i ) );
			} );
		}

		return this.each( function() {
			var self = jQuery( this ),
				contents = self.contents();

			if ( contents.length ) {
				contents.wrapAll( html );

			} else {
				self.append( html );
			}
		} );
	},

	wrap: function( html ) {
		var htmlIsFunction = isFunction( html );

		return this.each( function( i ) {
			jQuery( this ).wrapAll( htmlIsFunction ? html.call( this, i ) : html );
		} );
	},

	unwrap: function( selector ) {
		this.parent( selector ).not( "body" ).each( function() {
			jQuery( this ).replaceWith( this.childNodes );
		} );
		return this;
	}
} );


jQuery.expr.pseudos.hidden = function( elem ) {
	return !jQuery.expr.pseudos.visible( elem );
};
jQuery.expr.pseudos.visible = function( elem ) {
	return !!( elem.offsetWidth || elem.offsetHeight || elem.getClientRects().length );
};




jQuery.ajaxSettings.xhr = function() {
	try {
		return new window.XMLHttpRequest();
	} catch ( e ) {}
};

var xhrSuccessStatus = {

		// File protocol always yields status code 0, assume 200
		0: 200,

		// Support: IE <=9 only
		// #1450: sometimes IE returns 1223 when it should be 204
		1223: 204
	},
	xhrSupported = jQuery.ajaxSettings.xhr();

support.cors = !!xhrSupported && ( "withCredentials" in xhrSupported );
support.ajax = xhrSupported = !!xhrSupported;

jQuery.ajaxTransport( function( options ) {
	var callback, errorCallback;

	// Cross domain only allowed if supported through XMLHttpRequest
	if ( support.cors || xhrSupported && !options.crossDomain ) {
		return {
			send: function( headers, complete ) {
				var i,
					xhr = options.xhr();

				xhr.open(
					options.type,
					options.url,
					options.async,
					options.username,
					options.password
				);

				// Apply custom fields if provided
				if ( options.xhrFields ) {
					for ( i in options.xhrFields ) {
						xhr[ i ] = options.xhrFields[ i ];
					}
				}

				// Override mime type if needed
				if ( options.mimeType && xhr.overrideMimeType ) {
					xhr.overrideMimeType( options.mimeType );
				}

				// X-Requested-With header
				// For cross-domain requests, seeing as conditions for a preflight are
				// akin to a jigsaw puzzle, we simply never set it to be sure.
				// (it can always be set on a per-request basis or even using ajaxSetup)
				// For same-domain requests, won't change header if already provided.
				if ( !options.crossDomain && !headers[ "X-Requested-With" ] ) {
					headers[ "X-Requested-With" ] = "XMLHttpRequest";
				}

				// Set headers
				for ( i in headers ) {
					xhr.setRequestHeader( i, headers[ i ] );
				}

				// Callback
				callback = function( type ) {
					return function() {
						if ( callback ) {
							callback = errorCallback = xhr.onload =
								xhr.onerror = xhr.onabort = xhr.ontimeout =
									xhr.onreadystatechange = null;

							if ( type === "abort" ) {
								xhr.abort();
							} else if ( type === "error" ) {

								// Support: IE <=9 only
								// On a manual native abort, IE9 throws
								// errors on any property access that is not readyState
								if ( typeof xhr.status !== "number" ) {
									complete( 0, "error" );
								} else {
									complete(

										// File: protocol always yields status 0; see #8605, #14207
										xhr.status,
										xhr.statusText
									);
								}
							} else {
								complete(
									xhrSuccessStatus[ xhr.status ] || xhr.status,
									xhr.statusText,

									// Support: IE <=9 only
									// IE9 has no XHR2 but throws on binary (trac-11426)
									// For XHR2 non-text, let the caller handle it (gh-2498)
									( xhr.responseType || "text" ) !== "text"  ||
									typeof xhr.responseText !== "string" ?
										{ binary: xhr.response } :
										{ text: xhr.responseText },
									xhr.getAllResponseHeaders()
								);
							}
						}
					};
				};

				// Listen to events
				xhr.onload = callback();
				errorCallback = xhr.onerror = xhr.ontimeout = callback( "error" );

				// Support: IE 9 only
				// Use onreadystatechange to replace onabort
				// to handle uncaught aborts
				if ( xhr.onabort !== undefined ) {
					xhr.onabort = errorCallback;
				} else {
					xhr.onreadystatechange = function() {

						// Check readyState before timeout as it changes
						if ( xhr.readyState === 4 ) {

							// Allow onerror to be called first,
							// but that will not handle a native abort
							// Also, save errorCallback to a variable
							// as xhr.onerror cannot be accessed
							window.setTimeout( function() {
								if ( callback ) {
									errorCallback();
								}
							} );
						}
					};
				}

				// Create the abort callback
				callback = callback( "abort" );

				try {

					// Do send the request (this may raise an exception)
					xhr.send( options.hasContent && options.data || null );
				} catch ( e ) {

					// #14683: Only rethrow if this hasn't been notified as an error yet
					if ( callback ) {
						throw e;
					}
				}
			},

			abort: function() {
				if ( callback ) {
					callback();
				}
			}
		};
	}
} );




// Prevent auto-execution of scripts when no explicit dataType was provided (See gh-2432)
jQuery.ajaxPrefilter( function( s ) {
	if ( s.crossDomain ) {
		s.contents.script = false;
	}
} );

// Install script dataType
jQuery.ajaxSetup( {
	accepts: {
		script: "text/javascript, application/javascript, " +
			"application/ecmascript, application/x-ecmascript"
	},
	contents: {
		script: /\b(?:java|ecma)script\b/
	},
	converters: {
		"text script": function( text ) {
			jQuery.globalEval( text );
			return text;
		}
	}
} );

// Handle cache's special case and crossDomain
jQuery.ajaxPrefilter( "script", function( s ) {
	if ( s.cache === undefined ) {
		s.cache = false;
	}
	if ( s.crossDomain ) {
		s.type = "GET";
	}
} );

// Bind script tag hack transport
jQuery.ajaxTransport( "script", function( s ) {

	// This transport only deals with cross domain or forced-by-attrs requests
	if ( s.crossDomain || s.scriptAttrs ) {
		var script, callback;
		return {
			send: function( _, complete ) {
				script = jQuery( "<script>" )
					.attr( s.scriptAttrs || {} )
					.prop( { charset: s.scriptCharset, src: s.url } )
					.on( "load error", callback = function( evt ) {
						script.remove();
						callback = null;
						if ( evt ) {
							complete( evt.type === "error" ? 404 : 200, evt.type );
						}
					} );

				// Use native DOM manipulation to avoid our domManip AJAX trickery
				document.head.appendChild( script[ 0 ] );
			},
			abort: function() {
				if ( callback ) {
					callback();
				}
			}
		};
	}
} );




var oldCallbacks = [],
	rjsonp = /(=)\?(?=&|$)|\?\?/;

// Default jsonp settings
jQuery.ajaxSetup( {
	jsonp: "callback",
	jsonpCallback: function() {
		var callback = oldCallbacks.pop() || ( jQuery.expando + "_" + ( nonce.guid++ ) );
		this[ callback ] = true;
		return callback;
	}
} );

// Detect, normalize options and install callbacks for jsonp requests
jQuery.ajaxPrefilter( "json jsonp", function( s, originalSettings, jqXHR ) {

	var callbackName, overwritten, responseContainer,
		jsonProp = s.jsonp !== false && ( rjsonp.test( s.url ) ?
			"url" :
			typeof s.data === "string" &&
				( s.contentType || "" )
					.indexOf( "application/x-www-form-urlencoded" ) === 0 &&
				rjsonp.test( s.data ) && "data"
		);

	// Handle iff the expected data type is "jsonp" or we have a parameter to set
	if ( jsonProp || s.dataTypes[ 0 ] === "jsonp" ) {

		// Get callback name, remembering preexisting value associated with it
		callbackName = s.jsonpCallback = isFunction( s.jsonpCallback ) ?
			s.jsonpCallback() :
			s.jsonpCallback;

		// Insert callback into url or form data
		if ( jsonProp ) {
			s[ jsonProp ] = s[ jsonProp ].replace( rjsonp, "$1" + callbackName );
		} else if ( s.jsonp !== false ) {
			s.url += ( rquery.test( s.url ) ? "&" : "?" ) + s.jsonp + "=" + callbackName;
		}

		// Use data converter to retrieve json after script execution
		s.converters[ "script json" ] = function() {
			if ( !responseContainer ) {
				jQuery.error( callbackName + " was not called" );
			}
			return responseContainer[ 0 ];
		};

		// Force json dataType
		s.dataTypes[ 0 ] = "json";

		// Install callback
		overwritten = window[ callbackName ];
		window[ callbackName ] = function() {
			responseContainer = arguments;
		};

		// Clean-up function (fires after converters)
		jqXHR.always( function() {

			// If previous value didn't exist - remove it
			if ( overwritten === undefined ) {
				jQuery( window ).removeProp( callbackName );

			// Otherwise restore preexisting value
			} else {
				window[ callbackName ] = overwritten;
			}

			// Save back as free
			if ( s[ callbackName ] ) {

				// Make sure that re-using the options doesn't screw things around
				s.jsonpCallback = originalSettings.jsonpCallback;

				// Save the callback name for future use
				oldCallbacks.push( callbackName );
			}

			// Call if it was a function and we have a response
			if ( responseContainer && isFunction( overwritten ) ) {
				overwritten( responseContainer[ 0 ] );
			}

			responseContainer = overwritten = undefined;
		} );

		// Delegate to script
		return "script";
	}
} );




// Support: Safari 8 only
// In Safari 8 documents created via document.implementation.createHTMLDocument
// collapse sibling forms: the second one becomes a child of the first one.
// Because of that, this security measure has to be disabled in Safari 8.
// https://bugs.webkit.org/show_bug.cgi?id=137337
support.createHTMLDocument = ( function() {
	var body = document.implementation.createHTMLDocument( "" ).body;
	body.innerHTML = "<form></form><form></form>";
	return body.childNodes.length === 2;
} )();


// Argument "data" should be string of html
// context (optional): If specified, the fragment will be created in this context,
// defaults to document
// keepScripts (optional): If true, will include scripts passed in the html string
jQuery.parseHTML = function( data, context, keepScripts ) {
	if ( typeof data !== "string" ) {
		return [];
	}
	if ( typeof context === "boolean" ) {
		keepScripts = context;
		context = false;
	}

	var base, parsed, scripts;

	if ( !context ) {

		// Stop scripts or inline event handlers from being executed immediately
		// by using document.implementation
		if ( support.createHTMLDocument ) {
			context = document.implementation.createHTMLDocument( "" );

			// Set the base href for the created document
			// so any parsed elements with URLs
			// are based on the document's URL (gh-2965)
			base = context.createElement( "base" );
			base.href = document.location.href;
			context.head.appendChild( base );
		} else {
			context = document;
		}
	}

	parsed = rsingleTag.exec( data );
	scripts = !keepScripts && [];

	// Single tag
	if ( parsed ) {
		return [ context.createElement( parsed[ 1 ] ) ];
	}

	parsed = buildFragment( [ data ], context, scripts );

	if ( scripts && scripts.length ) {
		jQuery( scripts ).remove();
	}

	return jQuery.merge( [], parsed.childNodes );
};


/**
 * Load a url into a page
 */
jQuery.fn.load = function( url, params, callback ) {
	var selector, type, response,
		self = this,
		off = url.indexOf( " " );

	if ( off > -1 ) {
		selector = stripAndCollapse( url.slice( off ) );
		url = url.slice( 0, off );
	}

	// If it's a function
	if ( isFunction( params ) ) {

		// We assume that it's the callback
		callback = params;
		params = undefined;

	// Otherwise, build a param string
	} else if ( params && typeof params === "object" ) {
		type = "POST";
	}

	// If we have elements to modify, make the request
	if ( self.length > 0 ) {
		jQuery.ajax( {
			url: url,

			// If "type" variable is undefined, then "GET" method will be used.
			// Make value of this field explicit since
			// user can override it through ajaxSetup method
			type: type || "GET",
			dataType: "html",
			data: params
		} ).done( function( responseText ) {

			// Save response for use in complete callback
			response = arguments;

			self.html( selector ?

				// If a selector was specified, locate the right elements in a dummy div
				// Exclude scripts to avoid IE 'Permission Denied' errors
				jQuery( "<div>" ).append( jQuery.parseHTML( responseText ) ).find( selector ) :

				// Otherwise use the full result
				responseText );

		// If the request succeeds, this function gets "data", "status", "jqXHR"
		// but they are ignored because response was set above.
		// If it fails, this function gets "jqXHR", "status", "error"
		} ).always( callback && function( jqXHR, status ) {
			self.each( function() {
				callback.apply( this, response || [ jqXHR.responseText, status, jqXHR ] );
			} );
		} );
	}

	return this;
};




jQuery.expr.pseudos.animated = function( elem ) {
	return jQuery.grep( jQuery.timers, function( fn ) {
		return elem === fn.elem;
	} ).length;
};




jQuery.offset = {
	setOffset: function( elem, options, i ) {
		var curPosition, curLeft, curCSSTop, curTop, curOffset, curCSSLeft, calculatePosition,
			position = jQuery.css( elem, "position" ),
			curElem = jQuery( elem ),
			props = {};

		// Set position first, in-case top/left are set even on static elem
		if ( position === "static" ) {
			elem.style.position = "relative";
		}

		curOffset = curElem.offset();
		curCSSTop = jQuery.css( elem, "top" );
		curCSSLeft = jQuery.css( elem, "left" );
		calculatePosition = ( position === "absolute" || position === "fixed" ) &&
			( curCSSTop + curCSSLeft ).indexOf( "auto" ) > -1;

		// Need to be able to calculate position if either
		// top or left is auto and position is either absolute or fixed
		if ( calculatePosition ) {
			curPosition = curElem.position();
			curTop = curPosition.top;
			curLeft = curPosition.left;

		} else {
			curTop = parseFloat( curCSSTop ) || 0;
			curLeft = parseFloat( curCSSLeft ) || 0;
		}

		if ( isFunction( options ) ) {

			// Use jQuery.extend here to allow modification of coordinates argument (gh-1848)
			options = options.call( elem, i, jQuery.extend( {}, curOffset ) );
		}

		if ( options.top != null ) {
			props.top = ( options.top - curOffset.top ) + curTop;
		}
		if ( options.left != null ) {
			props.left = ( options.left - curOffset.left ) + curLeft;
		}

		if ( "using" in options ) {
			options.using.call( elem, props );

		} else {
			if ( typeof props.top === "number" ) {
				props.top += "px";
			}
			if ( typeof props.left === "number" ) {
				props.left += "px";
			}
			curElem.css( props );
		}
	}
};

jQuery.fn.extend( {

	// offset() relates an element's border box to the document origin
	offset: function( options ) {

		// Preserve chaining for setter
		if ( arguments.length ) {
			return options === undefined ?
				this :
				this.each( function( i ) {
					jQuery.offset.setOffset( this, options, i );
				} );
		}

		var rect, win,
			elem = this[ 0 ];

		if ( !elem ) {
			return;
		}

		// Return zeros for disconnected and hidden (display: none) elements (gh-2310)
		// Support: IE <=11 only
		// Running getBoundingClientRect on a
		// disconnected node in IE throws an error
		if ( !elem.getClientRects().length ) {
			return { top: 0, left: 0 };
		}

		// Get document-relative position by adding viewport scroll to viewport-relative gBCR
		rect = elem.getBoundingClientRect();
		win = elem.ownerDocument.defaultView;
		return {
			top: rect.top + win.pageYOffset,
			left: rect.left + win.pageXOffset
		};
	},

	// position() relates an element's margin box to its offset parent's padding box
	// This corresponds to the behavior of CSS absolute positioning
	position: function() {
		if ( !this[ 0 ] ) {
			return;
		}

		var offsetParent, offset, doc,
			elem = this[ 0 ],
			parentOffset = { top: 0, left: 0 };

		// position:fixed elements are offset from the viewport, which itself always has zero offset
		if ( jQuery.css( elem, "position" ) === "fixed" ) {

			// Assume position:fixed implies availability of getBoundingClientRect
			offset = elem.getBoundingClientRect();

		} else {
			offset = this.offset();

			// Account for the *real* offset parent, which can be the document or its root element
			// when a statically positioned element is identified
			doc = elem.ownerDocument;
			offsetParent = elem.offsetParent || doc.documentElement;
			while ( offsetParent &&
				( offsetParent === doc.body || offsetParent === doc.documentElement ) &&
				jQuery.css( offsetParent, "position" ) === "static" ) {

				offsetParent = offsetParent.parentNode;
			}
			if ( offsetParent && offsetParent !== elem && offsetParent.nodeType === 1 ) {

				// Incorporate borders into its offset, since they are outside its content origin
				parentOffset = jQuery( offsetParent ).offset();
				parentOffset.top += jQuery.css( offsetParent, "borderTopWidth", true );
				parentOffset.left += jQuery.css( offsetParent, "borderLeftWidth", true );
			}
		}

		// Subtract parent offsets and element margins
		return {
			top: offset.top - parentOffset.top - jQuery.css( elem, "marginTop", true ),
			left: offset.left - parentOffset.left - jQuery.css( elem, "marginLeft", true )
		};
	},

	// This method will return documentElement in the following cases:
	// 1) For the element inside the iframe without offsetParent, this method will return
	//    documentElement of the parent window
	// 2) For the hidden or detached element
	// 3) For body or html element, i.e. in case of the html node - it will return itself
	//
	// but those exceptions were never presented as a real life use-cases
	// and might be considered as more preferable results.
	//
	// This logic, however, is not guaranteed and can change at any point in the future
	offsetParent: function() {
		return this.map( function() {
			var offsetParent = this.offsetParent;

			while ( offsetParent && jQuery.css( offsetParent, "position" ) === "static" ) {
				offsetParent = offsetParent.offsetParent;
			}

			return offsetParent || documentElement;
		} );
	}
} );

// Create scrollLeft and scrollTop methods
jQuery.each( { scrollLeft: "pageXOffset", scrollTop: "pageYOffset" }, function( method, prop ) {
	var top = "pageYOffset" === prop;

	jQuery.fn[ method ] = function( val ) {
		return access( this, function( elem, method, val ) {

			// Coalesce documents and windows
			var win;
			if ( isWindow( elem ) ) {
				win = elem;
			} else if ( elem.nodeType === 9 ) {
				win = elem.defaultView;
			}

			if ( val === undefined ) {
				return win ? win[ prop ] : elem[ method ];
			}

			if ( win ) {
				win.scrollTo(
					!top ? val : win.pageXOffset,
					top ? val : win.pageYOffset
				);

			} else {
				elem[ method ] = val;
			}
		}, method, val, arguments.length );
	};
} );

// Support: Safari <=7 - 9.1, Chrome <=37 - 49
// Add the top/left cssHooks using jQuery.fn.position
// Webkit bug: https://bugs.webkit.org/show_bug.cgi?id=29084
// Blink bug: https://bugs.chromium.org/p/chromium/issues/detail?id=589347
// getComputedStyle returns percent when specified for top/left/bottom/right;
// rather than make the css module depend on the offset module, just check for it here
jQuery.each( [ "top", "left" ], function( _i, prop ) {
	jQuery.cssHooks[ prop ] = addGetHookIf( support.pixelPosition,
		function( elem, computed ) {
			if ( computed ) {
				computed = curCSS( elem, prop );

				// If curCSS returns percentage, fallback to offset
				return rnumnonpx.test( computed ) ?
					jQuery( elem ).position()[ prop ] + "px" :
					computed;
			}
		}
	);
} );


// Create innerHeight, innerWidth, height, width, outerHeight and outerWidth methods
jQuery.each( { Height: "height", Width: "width" }, function( name, type ) {
	jQuery.each( { padding: "inner" + name, content: type, "": "outer" + name },
		function( defaultExtra, funcName ) {

		// Margin is only for outerHeight, outerWidth
		jQuery.fn[ funcName ] = function( margin, value ) {
			var chainable = arguments.length && ( defaultExtra || typeof margin !== "boolean" ),
				extra = defaultExtra || ( margin === true || value === true ? "margin" : "border" );

			return access( this, function( elem, type, value ) {
				var doc;

				if ( isWindow( elem ) ) {

					// $( window ).outerWidth/Height return w/h including scrollbars (gh-1729)
					return funcName.indexOf( "outer" ) === 0 ?
						elem[ "inner" + name ] :
						elem.document.documentElement[ "client" + name ];
				}

				// Get document width or height
				if ( elem.nodeType === 9 ) {
					doc = elem.documentElement;

					// Either scroll[Width/Height] or offset[Width/Height] or client[Width/Height],
					// whichever is greatest
					return Math.max(
						elem.body[ "scroll" + name ], doc[ "scroll" + name ],
						elem.body[ "offset" + name ], doc[ "offset" + name ],
						doc[ "client" + name ]
					);
				}

				return value === undefined ?

					// Get width or height on the element, requesting but not forcing parseFloat
					jQuery.css( elem, type, extra ) :

					// Set width or height on the element
					jQuery.style( elem, type, value, extra );
			}, type, chainable ? margin : undefined, chainable );
		};
	} );
} );


jQuery.each( [
	"ajaxStart",
	"ajaxStop",
	"ajaxComplete",
	"ajaxError",
	"ajaxSuccess",
	"ajaxSend"
], function( _i, type ) {
	jQuery.fn[ type ] = function( fn ) {
		return this.on( type, fn );
	};
} );




jQuery.fn.extend( {

	bind: function( types, data, fn ) {
		return this.on( types, null, data, fn );
	},
	unbind: function( types, fn ) {
		return this.off( types, null, fn );
	},

	delegate: function( selector, types, data, fn ) {
		return this.on( types, selector, data, fn );
	},
	undelegate: function( selector, types, fn ) {

		// ( namespace ) or ( selector, types [, fn] )
		return arguments.length === 1 ?
			this.off( selector, "**" ) :
			this.off( types, selector || "**", fn );
	},

	hover: function( fnOver, fnOut ) {
		return this.mouseenter( fnOver ).mouseleave( fnOut || fnOver );
	}
} );

jQuery.each( ( "blur focus focusin focusout resize scroll click dblclick " +
	"mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " +
	"change select submit keydown keypress keyup contextmenu" ).split( " " ),
	function( _i, name ) {

		// Handle event binding
		jQuery.fn[ name ] = function( data, fn ) {
			return arguments.length > 0 ?
				this.on( name, null, data, fn ) :
				this.trigger( name );
		};
	} );




// Support: Android <=4.0 only
// Make sure we trim BOM and NBSP
var rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g;

// Bind a function to a context, optionally partially applying any
// arguments.
// jQuery.proxy is deprecated to promote standards (specifically Function#bind)
// However, it is not slated for removal any time soon
jQuery.proxy = function( fn, context ) {
	var tmp, args, proxy;

	if ( typeof context === "string" ) {
		tmp = fn[ context ];
		context = fn;
		fn = tmp;
	}

	// Quick check to determine if target is callable, in the spec
	// this throws a TypeError, but we will just return undefined.
	if ( !isFunction( fn ) ) {
		return undefined;
	}

	// Simulated bind
	args = slice.call( arguments, 2 );
	proxy = function() {
		return fn.apply( context || this, args.concat( slice.call( arguments ) ) );
	};

	// Set the guid of unique handler to the same of original handler, so it can be removed
	proxy.guid = fn.guid = fn.guid || jQuery.guid++;

	return proxy;
};

jQuery.holdReady = function( hold ) {
	if ( hold ) {
		jQuery.readyWait++;
	} else {
		jQuery.ready( true );
	}
};
jQuery.isArray = Array.isArray;
jQuery.parseJSON = JSON.parse;
jQuery.nodeName = nodeName;
jQuery.isFunction = isFunction;
jQuery.isWindow = isWindow;
jQuery.camelCase = camelCase;
jQuery.type = toType;

jQuery.now = Date.now;

jQuery.isNumeric = function( obj ) {

	// As of jQuery 3.0, isNumeric is limited to
	// strings and numbers (primitives or objects)
	// that can be coerced to finite numbers (gh-2662)
	var type = jQuery.type( obj );
	return ( type === "number" || type === "string" ) &&

		// parseFloat NaNs numeric-cast false positives ("")
		// ...but misinterprets leading-number strings, particularly hex literals ("0x...")
		// subtraction forces infinities to NaN
		!isNaN( obj - parseFloat( obj ) );
};

jQuery.trim = function( text ) {
	return text == null ?
		"" :
		( text + "" ).replace( rtrim, "" );
};



// Register as a named AMD module, since jQuery can be concatenated with other
// files that may use define, but not via a proper concatenation script that
// understands anonymous AMD modules. A named AMD is safest and most robust
// way to register. Lowercase jquery is used because AMD module names are
// derived from file names, and jQuery is normally delivered in a lowercase
// file name. Do this after creating the global so that if an AMD module wants
// to call noConflict to hide this version of jQuery, it will work.

// Note that for maximum portability, libraries that are not jQuery should
// declare themselves as anonymous modules, and avoid setting a global if an
// AMD loader is present. jQuery is a special case. For more information, see
// https://github.com/jrburke/requirejs/wiki/Updating-existing-libraries#wiki-anon

if ( typeof define === "function" && define.amd ) {
	define( "jquery", [], function() {
		return jQuery;
	} );
}




var

	// Map over jQuery in case of overwrite
	_jQuery = window.jQuery,

	// Map over the $ in case of overwrite
	_$ = window.$;

jQuery.noConflict = function( deep ) {
	if ( window.$ === jQuery ) {
		window.$ = _$;
	}

	if ( deep && window.jQuery === jQuery ) {
		window.jQuery = _jQuery;
	}

	return jQuery;
};

// Expose jQuery and $ identifiers, even in AMD
// (#7102#comment:10, https://github.com/jquery/jquery/pull/557)
// and CommonJS for browser emulators (#13566)
if ( typeof noGlobal === "undefined" ) {
	window.jQuery = window.$ = jQuery;
}




return jQuery;
} );

},{}],19:[function(require,module,exports){
(function (global){
/**
 * marked - a markdown parser
 * Copyright (c) 2011-2014, Christopher Jeffrey. (MIT Licensed)
 * https://github.com/markedjs/marked
 */

;(function(root) {
'use strict';

/**
 * Block-Level Grammar
 */

var block = {
  newline: /^\n+/,
  code: /^( {4}[^\n]+\n*)+/,
  fences: noop,
  hr: /^ {0,3}((?:- *){3,}|(?:_ *){3,}|(?:\* *){3,})(?:\n+|$)/,
  heading: /^ *(#{1,6}) *([^\n]+?) *#* *(?:\n+|$)/,
  nptable: noop,
  blockquote: /^( {0,3}> ?(paragraph|[^\n]*)(?:\n|$))+/,
  list: /^( *)(bull) [\s\S]+?(?:hr|def|\n{2,}(?! )(?!\1bull )\n*|\s*$)/,
  html: /^ *(?:comment *(?:\n|\s*$)|closed *(?:\n{2,}|\s*$)|closing *(?:\n{2,}|\s*$))/,
  def: /^ {0,3}\[(label)\]: *\n? *<?([^\s>]+)>?(?:(?: +\n? *| *\n *)(title))? *(?:\n+|$)/,
  table: noop,
  lheading: /^([^\n]+)\n *(=|-){2,} *(?:\n+|$)/,
  paragraph: /^([^\n]+(?:\n?(?!hr|heading|lheading| {0,3}>|tag)[^\n]+)+)/,
  text: /^[^\n]+/
};

block._label = /(?:\\[\[\]]|[^\[\]])+/;
block._title = /(?:"(?:\\"|[^"]|"[^"\n]*")*"|'\n?(?:[^'\n]+\n?)*'|\([^()]*\))/;
block.def = edit(block.def)
  .replace('label', block._label)
  .replace('title', block._title)
  .getRegex();

block.bullet = /(?:[*+-]|\d+\.)/;
block.item = /^( *)(bull) [^\n]*(?:\n(?!\1bull )[^\n]*)*/;
block.item = edit(block.item, 'gm')
  .replace(/bull/g, block.bullet)
  .getRegex();

block.list = edit(block.list)
  .replace(/bull/g, block.bullet)
  .replace('hr', '\\n+(?=\\1?(?:(?:- *){3,}|(?:_ *){3,}|(?:\\* *){3,})(?:\\n+|$))')
  .replace('def', '\\n+(?=' + block.def.source + ')')
  .getRegex();

block._tag = '(?!(?:'
  + 'a|em|strong|small|s|cite|q|dfn|abbr|data|time|code'
  + '|var|samp|kbd|sub|sup|i|b|u|mark|ruby|rt|rp|bdi|bdo'
  + '|span|br|wbr|ins|del|img)\\b)\\w+(?!:|[^\\w\\s@]*@)\\b';

block.html = edit(block.html)
  .replace('comment', /<!--[\s\S]*?-->/)
  .replace('closed', /<(tag)[\s\S]+?<\/\1>/)
  .replace('closing', /<tag(?:"[^"]*"|'[^']*'|\s[^'"\/>\s]*)*?\/?>/)
  .replace(/tag/g, block._tag)
  .getRegex();

block.paragraph = edit(block.paragraph)
  .replace('hr', block.hr)
  .replace('heading', block.heading)
  .replace('lheading', block.lheading)
  .replace('tag', '<' + block._tag)
  .getRegex();

block.blockquote = edit(block.blockquote)
  .replace('paragraph', block.paragraph)
  .getRegex();

/**
 * Normal Block Grammar
 */

block.normal = merge({}, block);

/**
 * GFM Block Grammar
 */

block.gfm = merge({}, block.normal, {
  fences: /^ *(`{3,}|~{3,})[ \.]*(\S+)? *\n([\s\S]*?)\n? *\1 *(?:\n+|$)/,
  paragraph: /^/,
  heading: /^ *(#{1,6}) +([^\n]+?) *#* *(?:\n+|$)/
});

block.gfm.paragraph = edit(block.paragraph)
  .replace('(?!', '(?!'
    + block.gfm.fences.source.replace('\\1', '\\2') + '|'
    + block.list.source.replace('\\1', '\\3') + '|')
  .getRegex();

/**
 * GFM + Tables Block Grammar
 */

block.tables = merge({}, block.gfm, {
  nptable: /^ *(\S.*\|.*)\n *([-:]+ *\|[-| :]*)\n((?:.*\|.*(?:\n|$))*)\n*/,
  table: /^ *\|(.+)\n *\|( *[-:]+[-| :]*)\n((?: *\|.*(?:\n|$))*)\n*/
});

/**
 * Block Lexer
 */

function Lexer(options) {
  this.tokens = [];
  this.tokens.links = {};
  this.options = options || marked.defaults;
  this.rules = block.normal;

  if (this.options.gfm) {
    if (this.options.tables) {
      this.rules = block.tables;
    } else {
      this.rules = block.gfm;
    }
  }
}

/**
 * Expose Block Rules
 */

Lexer.rules = block;

/**
 * Static Lex Method
 */

Lexer.lex = function(src, options) {
  var lexer = new Lexer(options);
  return lexer.lex(src);
};

/**
 * Preprocessing
 */

Lexer.prototype.lex = function(src) {
  src = src
    .replace(/\r\n|\r/g, '\n')
    .replace(/\t/g, '    ')
    .replace(/\u00a0/g, ' ')
    .replace(/\u2424/g, '\n');

  return this.token(src, true);
};

/**
 * Lexing
 */

Lexer.prototype.token = function(src, top) {
  src = src.replace(/^ +$/gm, '');
  var next,
      loose,
      cap,
      bull,
      b,
      item,
      space,
      i,
      tag,
      l,
      isordered;

  while (src) {
    // newline
    if (cap = this.rules.newline.exec(src)) {
      src = src.substring(cap[0].length);
      if (cap[0].length > 1) {
        this.tokens.push({
          type: 'space'
        });
      }
    }

    // code
    if (cap = this.rules.code.exec(src)) {
      src = src.substring(cap[0].length);
      cap = cap[0].replace(/^ {4}/gm, '');
      this.tokens.push({
        type: 'code',
        text: !this.options.pedantic
          ? cap.replace(/\n+$/, '')
          : cap
      });
      continue;
    }

    // fences (gfm)
    if (cap = this.rules.fences.exec(src)) {
      src = src.substring(cap[0].length);
      this.tokens.push({
        type: 'code',
        lang: cap[2],
        text: cap[3] || ''
      });
      continue;
    }

    // heading
    if (cap = this.rules.heading.exec(src)) {
      src = src.substring(cap[0].length);
      this.tokens.push({
        type: 'heading',
        depth: cap[1].length,
        text: cap[2]
      });
      continue;
    }

    // table no leading pipe (gfm)
    if (top && (cap = this.rules.nptable.exec(src))) {
      src = src.substring(cap[0].length);

      item = {
        type: 'table',
        header: cap[1].replace(/^ *| *\| *$/g, '').split(/ *\| */),
        align: cap[2].replace(/^ *|\| *$/g, '').split(/ *\| */),
        cells: cap[3].replace(/\n$/, '').split('\n')
      };

      for (i = 0; i < item.align.length; i++) {
        if (/^ *-+: *$/.test(item.align[i])) {
          item.align[i] = 'right';
        } else if (/^ *:-+: *$/.test(item.align[i])) {
          item.align[i] = 'center';
        } else if (/^ *:-+ *$/.test(item.align[i])) {
          item.align[i] = 'left';
        } else {
          item.align[i] = null;
        }
      }

      for (i = 0; i < item.cells.length; i++) {
        item.cells[i] = item.cells[i].split(/ *\| */);
      }

      this.tokens.push(item);

      continue;
    }

    // hr
    if (cap = this.rules.hr.exec(src)) {
      src = src.substring(cap[0].length);
      this.tokens.push({
        type: 'hr'
      });
      continue;
    }

    // blockquote
    if (cap = this.rules.blockquote.exec(src)) {
      src = src.substring(cap[0].length);

      this.tokens.push({
        type: 'blockquote_start'
      });

      cap = cap[0].replace(/^ *> ?/gm, '');

      // Pass `top` to keep the current
      // "toplevel" state. This is exactly
      // how markdown.pl works.
      this.token(cap, top);

      this.tokens.push({
        type: 'blockquote_end'
      });

      continue;
    }

    // list
    if (cap = this.rules.list.exec(src)) {
      src = src.substring(cap[0].length);
      bull = cap[2];
      isordered = bull.length > 1;

      this.tokens.push({
        type: 'list_start',
        ordered: isordered,
        start: isordered ? +bull : ''
      });

      // Get each top-level item.
      cap = cap[0].match(this.rules.item);

      next = false;
      l = cap.length;
      i = 0;

      for (; i < l; i++) {
        item = cap[i];

        // Remove the list item's bullet
        // so it is seen as the next token.
        space = item.length;
        item = item.replace(/^ *([*+-]|\d+\.) +/, '');

        // Outdent whatever the
        // list item contains. Hacky.
        if (~item.indexOf('\n ')) {
          space -= item.length;
          item = !this.options.pedantic
            ? item.replace(new RegExp('^ {1,' + space + '}', 'gm'), '')
            : item.replace(/^ {1,4}/gm, '');
        }

        // Determine whether the next list item belongs here.
        // Backpedal if it does not belong in this list.
        if (this.options.smartLists && i !== l - 1) {
          b = block.bullet.exec(cap[i + 1])[0];
          if (bull !== b && !(bull.length > 1 && b.length > 1)) {
            src = cap.slice(i + 1).join('\n') + src;
            i = l - 1;
          }
        }

        // Determine whether item is loose or not.
        // Use: /(^|\n)(?! )[^\n]+\n\n(?!\s*$)/
        // for discount behavior.
        loose = next || /\n\n(?!\s*$)/.test(item);
        if (i !== l - 1) {
          next = item.charAt(item.length - 1) === '\n';
          if (!loose) loose = next;
        }

        this.tokens.push({
          type: loose
            ? 'loose_item_start'
            : 'list_item_start'
        });

        // Recurse.
        this.token(item, false);

        this.tokens.push({
          type: 'list_item_end'
        });
      }

      this.tokens.push({
        type: 'list_end'
      });

      continue;
    }

    // html
    if (cap = this.rules.html.exec(src)) {
      src = src.substring(cap[0].length);
      this.tokens.push({
        type: this.options.sanitize
          ? 'paragraph'
          : 'html',
        pre: !this.options.sanitizer
          && (cap[1] === 'pre' || cap[1] === 'script' || cap[1] === 'style'),
        text: cap[0]
      });
      continue;
    }

    // def
    if (top && (cap = this.rules.def.exec(src))) {
      src = src.substring(cap[0].length);
      if (cap[3]) cap[3] = cap[3].substring(1, cap[3].length - 1);
      tag = cap[1].toLowerCase();
      if (!this.tokens.links[tag]) {
        this.tokens.links[tag] = {
          href: cap[2],
          title: cap[3]
        };
      }
      continue;
    }

    // table (gfm)
    if (top && (cap = this.rules.table.exec(src))) {
      src = src.substring(cap[0].length);

      item = {
        type: 'table',
        header: cap[1].replace(/^ *| *\| *$/g, '').split(/ *\| */),
        align: cap[2].replace(/^ *|\| *$/g, '').split(/ *\| */),
        cells: cap[3].replace(/(?: *\| *)?\n$/, '').split('\n')
      };

      for (i = 0; i < item.align.length; i++) {
        if (/^ *-+: *$/.test(item.align[i])) {
          item.align[i] = 'right';
        } else if (/^ *:-+: *$/.test(item.align[i])) {
          item.align[i] = 'center';
        } else if (/^ *:-+ *$/.test(item.align[i])) {
          item.align[i] = 'left';
        } else {
          item.align[i] = null;
        }
      }

      for (i = 0; i < item.cells.length; i++) {
        item.cells[i] = item.cells[i]
          .replace(/^ *\| *| *\| *$/g, '')
          .split(/ *\| */);
      }

      this.tokens.push(item);

      continue;
    }

    // lheading
    if (cap = this.rules.lheading.exec(src)) {
      src = src.substring(cap[0].length);
      this.tokens.push({
        type: 'heading',
        depth: cap[2] === '=' ? 1 : 2,
        text: cap[1]
      });
      continue;
    }

    // top-level paragraph
    if (top && (cap = this.rules.paragraph.exec(src))) {
      src = src.substring(cap[0].length);
      this.tokens.push({
        type: 'paragraph',
        text: cap[1].charAt(cap[1].length - 1) === '\n'
          ? cap[1].slice(0, -1)
          : cap[1]
      });
      continue;
    }

    // text
    if (cap = this.rules.text.exec(src)) {
      // Top-level should never reach here.
      src = src.substring(cap[0].length);
      this.tokens.push({
        type: 'text',
        text: cap[0]
      });
      continue;
    }

    if (src) {
      throw new Error('Infinite loop on byte: ' + src.charCodeAt(0));
    }
  }

  return this.tokens;
};

/**
 * Inline-Level Grammar
 */

var inline = {
  escape: /^\\([\\`*{}\[\]()#+\-.!_>])/,
  autolink: /^<(scheme:[^\s\x00-\x1f<>]*|email)>/,
  url: noop,
  tag: /^<!--[\s\S]*?-->|^<\/?[a-zA-Z0-9\-]+(?:"[^"]*"|'[^']*'|\s[^<'">\/\s]*)*?\/?>/,
  link: /^!?\[(inside)\]\(href\)/,
  reflink: /^!?\[(inside)\]\s*\[([^\]]*)\]/,
  nolink: /^!?\[((?:\[[^\[\]]*\]|\\[\[\]]|[^\[\]])*)\]/,
  strong: /^__([\s\S]+?)__(?!_)|^\*\*([\s\S]+?)\*\*(?!\*)/,
  em: /^_([^\s_](?:[^_]|__)+?[^\s_])_\b|^\*((?:\*\*|[^*])+?)\*(?!\*)/,
  code: /^(`+)\s*([\s\S]*?[^`]?)\s*\1(?!`)/,
  br: /^ {2,}\n(?!\s*$)/,
  del: noop,
  text: /^[\s\S]+?(?=[\\<!\[`*]|\b_| {2,}\n|$)/
};

inline._scheme = /[a-zA-Z][a-zA-Z0-9+.-]{1,31}/;
inline._email = /[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+(@)[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)+(?![-_])/;

inline.autolink = edit(inline.autolink)
  .replace('scheme', inline._scheme)
  .replace('email', inline._email)
  .getRegex()

inline._inside = /(?:\[[^\[\]]*\]|\\[\[\]]|[^\[\]]|\](?=[^\[]*\]))*/;
inline._href = /\s*<?([\s\S]*?)>?(?:\s+['"]([\s\S]*?)['"])?\s*/;

inline.link = edit(inline.link)
  .replace('inside', inline._inside)
  .replace('href', inline._href)
  .getRegex();

inline.reflink = edit(inline.reflink)
  .replace('inside', inline._inside)
  .getRegex();

/**
 * Normal Inline Grammar
 */

inline.normal = merge({}, inline);

/**
 * Pedantic Inline Grammar
 */

inline.pedantic = merge({}, inline.normal, {
  strong: /^__(?=\S)([\s\S]*?\S)__(?!_)|^\*\*(?=\S)([\s\S]*?\S)\*\*(?!\*)/,
  em: /^_(?=\S)([\s\S]*?\S)_(?!_)|^\*(?=\S)([\s\S]*?\S)\*(?!\*)/
});

/**
 * GFM Inline Grammar
 */

inline.gfm = merge({}, inline.normal, {
  escape: edit(inline.escape).replace('])', '~|])').getRegex(),
  url: edit(/^((?:ftp|https?):\/\/|www\.)(?:[a-zA-Z0-9\-]+\.?)+[^\s<]*|^email/)
    .replace('email', inline._email)
    .getRegex(),
  _backpedal: /(?:[^?!.,:;*_~()&]+|\([^)]*\)|&(?![a-zA-Z0-9]+;$)|[?!.,:;*_~)]+(?!$))+/,
  del: /^~~(?=\S)([\s\S]*?\S)~~/,
  text: edit(inline.text)
    .replace(']|', '~]|')
    .replace('|', '|https?://|ftp://|www\\.|[a-zA-Z0-9.!#$%&\'*+/=?^_`{\\|}~-]+@|')
    .getRegex()
});

/**
 * GFM + Line Breaks Inline Grammar
 */

inline.breaks = merge({}, inline.gfm, {
  br: edit(inline.br).replace('{2,}', '*').getRegex(),
  text: edit(inline.gfm.text).replace('{2,}', '*').getRegex()
});

/**
 * Inline Lexer & Compiler
 */

function InlineLexer(links, options) {
  this.options = options || marked.defaults;
  this.links = links;
  this.rules = inline.normal;
  this.renderer = this.options.renderer || new Renderer();
  this.renderer.options = this.options;

  if (!this.links) {
    throw new Error('Tokens array requires a `links` property.');
  }

  if (this.options.gfm) {
    if (this.options.breaks) {
      this.rules = inline.breaks;
    } else {
      this.rules = inline.gfm;
    }
  } else if (this.options.pedantic) {
    this.rules = inline.pedantic;
  }
}

/**
 * Expose Inline Rules
 */

InlineLexer.rules = inline;

/**
 * Static Lexing/Compiling Method
 */

InlineLexer.output = function(src, links, options) {
  var inline = new InlineLexer(links, options);
  return inline.output(src);
};

/**
 * Lexing/Compiling
 */

InlineLexer.prototype.output = function(src) {
  var out = '',
      link,
      text,
      href,
      cap;

  while (src) {
    // escape
    if (cap = this.rules.escape.exec(src)) {
      src = src.substring(cap[0].length);
      out += cap[1];
      continue;
    }

    // autolink
    if (cap = this.rules.autolink.exec(src)) {
      src = src.substring(cap[0].length);
      if (cap[2] === '@') {
        text = escape(this.mangle(cap[1]));
        href = 'mailto:' + text;
      } else {
        text = escape(cap[1]);
        href = text;
      }
      out += this.renderer.link(href, null, text);
      continue;
    }

    // url (gfm)
    if (!this.inLink && (cap = this.rules.url.exec(src))) {
      cap[0] = this.rules._backpedal.exec(cap[0])[0];
      src = src.substring(cap[0].length);
      if (cap[2] === '@') {
        text = escape(cap[0]);
        href = 'mailto:' + text;
      } else {
        text = escape(cap[0]);
        if (cap[1] === 'www.') {
          href = 'http://' + text;
        } else {
          href = text;
        }
      }
      out += this.renderer.link(href, null, text);
      continue;
    }

    // tag
    if (cap = this.rules.tag.exec(src)) {
      if (!this.inLink && /^<a /i.test(cap[0])) {
        this.inLink = true;
      } else if (this.inLink && /^<\/a>/i.test(cap[0])) {
        this.inLink = false;
      }
      src = src.substring(cap[0].length);
      out += this.options.sanitize
        ? this.options.sanitizer
          ? this.options.sanitizer(cap[0])
          : escape(cap[0])
        : cap[0]
      continue;
    }

    // link
    if (cap = this.rules.link.exec(src)) {
      src = src.substring(cap[0].length);
      this.inLink = true;
      out += this.outputLink(cap, {
        href: cap[2],
        title: cap[3]
      });
      this.inLink = false;
      continue;
    }

    // reflink, nolink
    if ((cap = this.rules.reflink.exec(src))
        || (cap = this.rules.nolink.exec(src))) {
      src = src.substring(cap[0].length);
      link = (cap[2] || cap[1]).replace(/\s+/g, ' ');
      link = this.links[link.toLowerCase()];
      if (!link || !link.href) {
        out += cap[0].charAt(0);
        src = cap[0].substring(1) + src;
        continue;
      }
      this.inLink = true;
      out += this.outputLink(cap, link);
      this.inLink = false;
      continue;
    }

    // strong
    if (cap = this.rules.strong.exec(src)) {
      src = src.substring(cap[0].length);
      out += this.renderer.strong(this.output(cap[2] || cap[1]));
      continue;
    }

    // em
    if (cap = this.rules.em.exec(src)) {
      src = src.substring(cap[0].length);
      out += this.renderer.em(this.output(cap[2] || cap[1]));
      continue;
    }

    // code
    if (cap = this.rules.code.exec(src)) {
      src = src.substring(cap[0].length);
      out += this.renderer.codespan(escape(cap[2].trim(), true));
      continue;
    }

    // br
    if (cap = this.rules.br.exec(src)) {
      src = src.substring(cap[0].length);
      out += this.renderer.br();
      continue;
    }

    // del (gfm)
    if (cap = this.rules.del.exec(src)) {
      src = src.substring(cap[0].length);
      out += this.renderer.del(this.output(cap[1]));
      continue;
    }

    // text
    if (cap = this.rules.text.exec(src)) {
      src = src.substring(cap[0].length);
      out += this.renderer.text(escape(this.smartypants(cap[0])));
      continue;
    }

    if (src) {
      throw new Error('Infinite loop on byte: ' + src.charCodeAt(0));
    }
  }

  return out;
};

/**
 * Compile Link
 */

InlineLexer.prototype.outputLink = function(cap, link) {
  var href = escape(link.href),
      title = link.title ? escape(link.title) : null;

  return cap[0].charAt(0) !== '!'
    ? this.renderer.link(href, title, this.output(cap[1]))
    : this.renderer.image(href, title, escape(cap[1]));
};

/**
 * Smartypants Transformations
 */

InlineLexer.prototype.smartypants = function(text) {
  if (!this.options.smartypants) return text;
  return text
    // em-dashes
    .replace(/---/g, '\u2014')
    // en-dashes
    .replace(/--/g, '\u2013')
    // opening singles
    .replace(/(^|[-\u2014/(\[{"\s])'/g, '$1\u2018')
    // closing singles & apostrophes
    .replace(/'/g, '\u2019')
    // opening doubles
    .replace(/(^|[-\u2014/(\[{\u2018\s])"/g, '$1\u201c')
    // closing doubles
    .replace(/"/g, '\u201d')
    // ellipses
    .replace(/\.{3}/g, '\u2026');
};

/**
 * Mangle Links
 */

InlineLexer.prototype.mangle = function(text) {
  if (!this.options.mangle) return text;
  var out = '',
      l = text.length,
      i = 0,
      ch;

  for (; i < l; i++) {
    ch = text.charCodeAt(i);
    if (Math.random() > 0.5) {
      ch = 'x' + ch.toString(16);
    }
    out += '&#' + ch + ';';
  }

  return out;
};

/**
 * Renderer
 */

function Renderer(options) {
  this.options = options || {};
}

Renderer.prototype.code = function(code, lang, escaped) {
  if (this.options.highlight) {
    var out = this.options.highlight(code, lang);
    if (out != null && out !== code) {
      escaped = true;
      code = out;
    }
  }

  if (!lang) {
    return '<pre><code>'
      + (escaped ? code : escape(code, true))
      + '\n</code></pre>';
  }

  return '<pre><code class="'
    + this.options.langPrefix
    + escape(lang, true)
    + '">'
    + (escaped ? code : escape(code, true))
    + '\n</code></pre>\n';
};

Renderer.prototype.blockquote = function(quote) {
  return '<blockquote>\n' + quote + '</blockquote>\n';
};

Renderer.prototype.html = function(html) {
  return html;
};

Renderer.prototype.heading = function(text, level, raw) {
  return '<h'
    + level
    + ' id="'
    + this.options.headerPrefix
    + raw.toLowerCase().replace(/[^\w]+/g, '-')
    + '">'
    + text
    + '</h'
    + level
    + '>\n';
};

Renderer.prototype.hr = function() {
  return this.options.xhtml ? '<hr/>\n' : '<hr>\n';
};

Renderer.prototype.list = function(body, ordered, start) {
  var type = ordered ? 'ol' : 'ul',
      startatt = (ordered && start !== 1) ? (' start="' + start + '"') : '';
  return '<' + type + startatt + '>\n' + body + '</' + type + '>\n';
};

Renderer.prototype.listitem = function(text) {
  return '<li>' + text + '</li>\n';
};

Renderer.prototype.paragraph = function(text) {
  return '<p>' + text + '</p>\n';
};

Renderer.prototype.table = function(header, body) {
  return '<table>\n'
    + '<thead>\n'
    + header
    + '</thead>\n'
    + '<tbody>\n'
    + body
    + '</tbody>\n'
    + '</table>\n';
};

Renderer.prototype.tablerow = function(content) {
  return '<tr>\n' + content + '</tr>\n';
};

Renderer.prototype.tablecell = function(content, flags) {
  var type = flags.header ? 'th' : 'td';
  var tag = flags.align
    ? '<' + type + ' style="text-align:' + flags.align + '">'
    : '<' + type + '>';
  return tag + content + '</' + type + '>\n';
};

// span level renderer
Renderer.prototype.strong = function(text) {
  return '<strong>' + text + '</strong>';
};

Renderer.prototype.em = function(text) {
  return '<em>' + text + '</em>';
};

Renderer.prototype.codespan = function(text) {
  return '<code>' + text + '</code>';
};

Renderer.prototype.br = function() {
  return this.options.xhtml ? '<br/>' : '<br>';
};

Renderer.prototype.del = function(text) {
  return '<del>' + text + '</del>';
};

Renderer.prototype.link = function(href, title, text) {
  if (this.options.sanitize) {
    try {
      var prot = decodeURIComponent(unescape(href))
        .replace(/[^\w:]/g, '')
        .toLowerCase();
    } catch (e) {
      return text;
    }
    if (prot.indexOf('javascript:') === 0 || prot.indexOf('vbscript:') === 0 || prot.indexOf('data:') === 0) {
      return text;
    }
  }
  if (this.options.baseUrl && !originIndependentUrl.test(href)) {
    href = resolveUrl(this.options.baseUrl, href);
  }
  var out = '<a href="' + href + '"';
  if (title) {
    out += ' title="' + title + '"';
  }
  out += '>' + text + '</a>';
  return out;
};

Renderer.prototype.image = function(href, title, text) {
  if (this.options.baseUrl && !originIndependentUrl.test(href)) {
    href = resolveUrl(this.options.baseUrl, href);
  }
  var out = '<img src="' + href + '" alt="' + text + '"';
  if (title) {
    out += ' title="' + title + '"';
  }
  out += this.options.xhtml ? '/>' : '>';
  return out;
};

Renderer.prototype.text = function(text) {
  return text;
};

/**
 * TextRenderer
 * returns only the textual part of the token
 */

function TextRenderer() {}

// no need for block level renderers

TextRenderer.prototype.strong =
TextRenderer.prototype.em =
TextRenderer.prototype.codespan =
TextRenderer.prototype.del =
TextRenderer.prototype.text = function (text) {
  return text;
}

TextRenderer.prototype.link =
TextRenderer.prototype.image = function(href, title, text) {
  return '' + text;
}

TextRenderer.prototype.br = function() {
  return '';
}

/**
 * Parsing & Compiling
 */

function Parser(options) {
  this.tokens = [];
  this.token = null;
  this.options = options || marked.defaults;
  this.options.renderer = this.options.renderer || new Renderer();
  this.renderer = this.options.renderer;
  this.renderer.options = this.options;
}

/**
 * Static Parse Method
 */

Parser.parse = function(src, options) {
  var parser = new Parser(options);
  return parser.parse(src);
};

/**
 * Parse Loop
 */

Parser.prototype.parse = function(src) {
  this.inline = new InlineLexer(src.links, this.options);
  // use an InlineLexer with a TextRenderer to extract pure text
  this.inlineText = new InlineLexer(
    src.links,
    merge({}, this.options, {renderer: new TextRenderer()})
  );
  this.tokens = src.reverse();

  var out = '';
  while (this.next()) {
    out += this.tok();
  }

  return out;
};

/**
 * Next Token
 */

Parser.prototype.next = function() {
  return this.token = this.tokens.pop();
};

/**
 * Preview Next Token
 */

Parser.prototype.peek = function() {
  return this.tokens[this.tokens.length - 1] || 0;
};

/**
 * Parse Text Tokens
 */

Parser.prototype.parseText = function() {
  var body = this.token.text;

  while (this.peek().type === 'text') {
    body += '\n' + this.next().text;
  }

  return this.inline.output(body);
};

/**
 * Parse Current Token
 */

Parser.prototype.tok = function() {
  switch (this.token.type) {
    case 'space': {
      return '';
    }
    case 'hr': {
      return this.renderer.hr();
    }
    case 'heading': {
      return this.renderer.heading(
        this.inline.output(this.token.text),
        this.token.depth,
        unescape(this.inlineText.output(this.token.text)));
    }
    case 'code': {
      return this.renderer.code(this.token.text,
        this.token.lang,
        this.token.escaped);
    }
    case 'table': {
      var header = '',
          body = '',
          i,
          row,
          cell,
          j;

      // header
      cell = '';
      for (i = 0; i < this.token.header.length; i++) {
        cell += this.renderer.tablecell(
          this.inline.output(this.token.header[i]),
          { header: true, align: this.token.align[i] }
        );
      }
      header += this.renderer.tablerow(cell);

      for (i = 0; i < this.token.cells.length; i++) {
        row = this.token.cells[i];

        cell = '';
        for (j = 0; j < row.length; j++) {
          cell += this.renderer.tablecell(
            this.inline.output(row[j]),
            { header: false, align: this.token.align[j] }
          );
        }

        body += this.renderer.tablerow(cell);
      }
      return this.renderer.table(header, body);
    }
    case 'blockquote_start': {
      body = '';

      while (this.next().type !== 'blockquote_end') {
        body += this.tok();
      }

      return this.renderer.blockquote(body);
    }
    case 'list_start': {
      body = '';
      var ordered = this.token.ordered,
          start = this.token.start;

      while (this.next().type !== 'list_end') {
        body += this.tok();
      }

      return this.renderer.list(body, ordered, start);
    }
    case 'list_item_start': {
      body = '';

      while (this.next().type !== 'list_item_end') {
        body += this.token.type === 'text'
          ? this.parseText()
          : this.tok();
      }

      return this.renderer.listitem(body);
    }
    case 'loose_item_start': {
      body = '';

      while (this.next().type !== 'list_item_end') {
        body += this.tok();
      }

      return this.renderer.listitem(body);
    }
    case 'html': {
      var html = !this.token.pre && !this.options.pedantic
        ? this.inline.output(this.token.text)
        : this.token.text;
      return this.renderer.html(html);
    }
    case 'paragraph': {
      return this.renderer.paragraph(this.inline.output(this.token.text));
    }
    case 'text': {
      return this.renderer.paragraph(this.parseText());
    }
  }
};

/**
 * Helpers
 */

function escape(html, encode) {
  return html
    .replace(!encode ? /&(?!#?\w+;)/g : /&/g, '&amp;')
    .replace(/</g, '&lt;')
    .replace(/>/g, '&gt;')
    .replace(/"/g, '&quot;')
    .replace(/'/g, '&#39;');
}

function unescape(html) {
  // explicitly match decimal, hex, and named HTML entities
  return html.replace(/&(#(?:\d+)|(?:#x[0-9A-Fa-f]+)|(?:\w+));?/ig, function(_, n) {
    n = n.toLowerCase();
    if (n === 'colon') return ':';
    if (n.charAt(0) === '#') {
      return n.charAt(1) === 'x'
        ? String.fromCharCode(parseInt(n.substring(2), 16))
        : String.fromCharCode(+n.substring(1));
    }
    return '';
  });
}

function edit(regex, opt) {
  regex = regex.source;
  opt = opt || '';
  return {
    replace: function(name, val) {
      val = val.source || val;
      val = val.replace(/(^|[^\[])\^/g, '$1');
      regex = regex.replace(name, val);
      return this;
    },
    getRegex: function() {
      return new RegExp(regex, opt);
    }
  };
}

function resolveUrl(base, href) {
  if (!baseUrls[' ' + base]) {
    // we can ignore everything in base after the last slash of its path component,
    // but we might need to add _that_
    // https://tools.ietf.org/html/rfc3986#section-3
    if (/^[^:]+:\/*[^/]*$/.test(base)) {
      baseUrls[' ' + base] = base + '/';
    } else {
      baseUrls[' ' + base] = base.replace(/[^/]*$/, '');
    }
  }
  base = baseUrls[' ' + base];

  if (href.slice(0, 2) === '//') {
    return base.replace(/:[\s\S]*/, ':') + href;
  } else if (href.charAt(0) === '/') {
    return base.replace(/(:\/*[^/]*)[\s\S]*/, '$1') + href;
  } else {
    return base + href;
  }
}
var baseUrls = {};
var originIndependentUrl = /^$|^[a-z][a-z0-9+.-]*:|^[?#]/i;

function noop() {}
noop.exec = noop;

function merge(obj) {
  var i = 1,
      target,
      key;

  for (; i < arguments.length; i++) {
    target = arguments[i];
    for (key in target) {
      if (Object.prototype.hasOwnProperty.call(target, key)) {
        obj[key] = target[key];
      }
    }
  }

  return obj;
}

/**
 * Marked
 */

function marked(src, opt, callback) {
  // throw error in case of non string input
  if (typeof src === 'undefined' || src === null) {
    throw new Error('marked(): input parameter is undefined or null');
  }
  if (typeof src !== 'string') {
    throw new Error('marked(): input parameter is of type '
      + Object.prototype.toString.call(src) + ', string expected');
  }

  if (callback || typeof opt === 'function') {
    if (!callback) {
      callback = opt;
      opt = null;
    }

    opt = merge({}, marked.defaults, opt || {});

    var highlight = opt.highlight,
        tokens,
        pending,
        i = 0;

    try {
      tokens = Lexer.lex(src, opt)
    } catch (e) {
      return callback(e);
    }

    pending = tokens.length;

    var done = function(err) {
      if (err) {
        opt.highlight = highlight;
        return callback(err);
      }

      var out;

      try {
        out = Parser.parse(tokens, opt);
      } catch (e) {
        err = e;
      }

      opt.highlight = highlight;

      return err
        ? callback(err)
        : callback(null, out);
    };

    if (!highlight || highlight.length < 3) {
      return done();
    }

    delete opt.highlight;

    if (!pending) return done();

    for (; i < tokens.length; i++) {
      (function(token) {
        if (token.type !== 'code') {
          return --pending || done();
        }
        return highlight(token.text, token.lang, function(err, code) {
          if (err) return done(err);
          if (code == null || code === token.text) {
            return --pending || done();
          }
          token.text = code;
          token.escaped = true;
          --pending || done();
        });
      })(tokens[i]);
    }

    return;
  }
  try {
    if (opt) opt = merge({}, marked.defaults, opt);
    return Parser.parse(Lexer.lex(src, opt), opt);
  } catch (e) {
    e.message += '\nPlease report this to https://github.com/markedjs/marked.';
    if ((opt || marked.defaults).silent) {
      return '<p>An error occurred:</p><pre>'
        + escape(e.message + '', true)
        + '</pre>';
    }
    throw e;
  }
}

/**
 * Options
 */

marked.options =
marked.setOptions = function(opt) {
  merge(marked.defaults, opt);
  return marked;
};

marked.defaults = {
  gfm: true,
  tables: true,
  breaks: false,
  pedantic: false,
  sanitize: false,
  sanitizer: null,
  mangle: true,
  smartLists: false,
  silent: false,
  highlight: null,
  langPrefix: 'lang-',
  smartypants: false,
  headerPrefix: '',
  renderer: new Renderer(),
  xhtml: false,
  baseUrl: null
};

/**
 * Expose
 */

marked.Parser = Parser;
marked.parser = Parser.parse;

marked.Renderer = Renderer;
marked.TextRenderer = TextRenderer;

marked.Lexer = Lexer;
marked.lexer = Lexer.lex;

marked.InlineLexer = InlineLexer;
marked.inlineLexer = InlineLexer.output;

marked.parse = marked;

if (typeof module !== 'undefined' && typeof exports === 'object') {
  module.exports = marked;
} else if (typeof define === 'function' && define.amd) {
  define(function() { return marked; });
} else {
  root.marked = marked;
}
})(this || (typeof window !== 'undefined' ? window : global));

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{}],20:[function(require,module,exports){
/*
object-assign
(c) Sindre Sorhus
@license MIT
*/

'use strict';
/* eslint-disable no-unused-vars */
var getOwnPropertySymbols = Object.getOwnPropertySymbols;
var hasOwnProperty = Object.prototype.hasOwnProperty;
var propIsEnumerable = Object.prototype.propertyIsEnumerable;

function toObject(val) {
	if (val === null || val === undefined) {
		throw new TypeError('Object.assign cannot be called with null or undefined');
	}

	return Object(val);
}

function shouldUseNative() {
	try {
		if (!Object.assign) {
			return false;
		}

		// Detect buggy property enumeration order in older V8 versions.

		// https://bugs.chromium.org/p/v8/issues/detail?id=4118
		var test1 = new String('abc');  // eslint-disable-line no-new-wrappers
		test1[5] = 'de';
		if (Object.getOwnPropertyNames(test1)[0] === '5') {
			return false;
		}

		// https://bugs.chromium.org/p/v8/issues/detail?id=3056
		var test2 = {};
		for (var i = 0; i < 10; i++) {
			test2['_' + String.fromCharCode(i)] = i;
		}
		var order2 = Object.getOwnPropertyNames(test2).map(function (n) {
			return test2[n];
		});
		if (order2.join('') !== '0123456789') {
			return false;
		}

		// https://bugs.chromium.org/p/v8/issues/detail?id=3056
		var test3 = {};
		'abcdefghijklmnopqrst'.split('').forEach(function (letter) {
			test3[letter] = letter;
		});
		if (Object.keys(Object.assign({}, test3)).join('') !==
				'abcdefghijklmnopqrst') {
			return false;
		}

		return true;
	} catch (err) {
		// We don't expect any of the above to throw, but better to be safe.
		return false;
	}
}

module.exports = shouldUseNative() ? Object.assign : function (target, source) {
	var from;
	var to = toObject(target);
	var symbols;

	for (var s = 1; s < arguments.length; s++) {
		from = Object(arguments[s]);

		for (var key in from) {
			if (hasOwnProperty.call(from, key)) {
				to[key] = from[key];
			}
		}

		if (getOwnPropertySymbols) {
			symbols = getOwnPropertySymbols(from);
			for (var i = 0; i < symbols.length; i++) {
				if (propIsEnumerable.call(from, symbols[i])) {
					to[symbols[i]] = from[symbols[i]];
				}
			}
		}
	}

	return to;
};

},{}],21:[function(require,module,exports){
var isarray = require('isarray')

/**
 * Expose `pathToRegexp`.
 */
module.exports = pathToRegexp
module.exports.parse = parse
module.exports.compile = compile
module.exports.tokensToFunction = tokensToFunction
module.exports.tokensToRegExp = tokensToRegExp

/**
 * The main path matching regexp utility.
 *
 * @type {RegExp}
 */
var PATH_REGEXP = new RegExp([
  // Match escaped characters that would otherwise appear in future matches.
  // This allows the user to escape special characters that won't transform.
  '(\\\\.)',
  // Match Express-style parameters and un-named parameters with a prefix
  // and optional suffixes. Matches appear as:
  //
  // "/:test(\\d+)?" => ["/", "test", "\d+", undefined, "?", undefined]
  // "/route(\\d+)"  => [undefined, undefined, undefined, "\d+", undefined, undefined]
  // "/*"            => ["/", undefined, undefined, undefined, undefined, "*"]
  '([\\/.])?(?:(?:\\:(\\w+)(?:\\(((?:\\\\.|[^\\\\()])+)\\))?|\\(((?:\\\\.|[^\\\\()])+)\\))([+*?])?|(\\*))'
].join('|'), 'g')

/**
 * Parse a string for the raw tokens.
 *
 * @param  {string}  str
 * @param  {Object=} options
 * @return {!Array}
 */
function parse (str, options) {
  var tokens = []
  var key = 0
  var index = 0
  var path = ''
  var defaultDelimiter = options && options.delimiter || '/'
  var res

  while ((res = PATH_REGEXP.exec(str)) != null) {
    var m = res[0]
    var escaped = res[1]
    var offset = res.index
    path += str.slice(index, offset)
    index = offset + m.length

    // Ignore already escaped sequences.
    if (escaped) {
      path += escaped[1]
      continue
    }

    var next = str[index]
    var prefix = res[2]
    var name = res[3]
    var capture = res[4]
    var group = res[5]
    var modifier = res[6]
    var asterisk = res[7]

    // Push the current path onto the tokens.
    if (path) {
      tokens.push(path)
      path = ''
    }

    var partial = prefix != null && next != null && next !== prefix
    var repeat = modifier === '+' || modifier === '*'
    var optional = modifier === '?' || modifier === '*'
    var delimiter = res[2] || defaultDelimiter
    var pattern = capture || group

    tokens.push({
      name: name || key++,
      prefix: prefix || '',
      delimiter: delimiter,
      optional: optional,
      repeat: repeat,
      partial: partial,
      asterisk: !!asterisk,
      pattern: pattern ? escapeGroup(pattern) : (asterisk ? '.*' : '[^' + escapeString(delimiter) + ']+?')
    })
  }

  // Match any characters still remaining.
  if (index < str.length) {
    path += str.substr(index)
  }

  // If the path exists, push it onto the end.
  if (path) {
    tokens.push(path)
  }

  return tokens
}

/**
 * Compile a string to a template function for the path.
 *
 * @param  {string}             str
 * @param  {Object=}            options
 * @return {!function(Object=, Object=)}
 */
function compile (str, options) {
  return tokensToFunction(parse(str, options))
}

/**
 * Prettier encoding of URI path segments.
 *
 * @param  {string}
 * @return {string}
 */
function encodeURIComponentPretty (str) {
  return encodeURI(str).replace(/[\/?#]/g, function (c) {
    return '%' + c.charCodeAt(0).toString(16).toUpperCase()
  })
}

/**
 * Encode the asterisk parameter. Similar to `pretty`, but allows slashes.
 *
 * @param  {string}
 * @return {string}
 */
function encodeAsterisk (str) {
  return encodeURI(str).replace(/[?#]/g, function (c) {
    return '%' + c.charCodeAt(0).toString(16).toUpperCase()
  })
}

/**
 * Expose a method for transforming tokens into the path function.
 */
function tokensToFunction (tokens) {
  // Compile all the tokens into regexps.
  var matches = new Array(tokens.length)

  // Compile all the patterns before compilation.
  for (var i = 0; i < tokens.length; i++) {
    if (typeof tokens[i] === 'object') {
      matches[i] = new RegExp('^(?:' + tokens[i].pattern + ')$')
    }
  }

  return function (obj, opts) {
    var path = ''
    var data = obj || {}
    var options = opts || {}
    var encode = options.pretty ? encodeURIComponentPretty : encodeURIComponent

    for (var i = 0; i < tokens.length; i++) {
      var token = tokens[i]

      if (typeof token === 'string') {
        path += token

        continue
      }

      var value = data[token.name]
      var segment

      if (value == null) {
        if (token.optional) {
          // Prepend partial segment prefixes.
          if (token.partial) {
            path += token.prefix
          }

          continue
        } else {
          throw new TypeError('Expected "' + token.name + '" to be defined')
        }
      }

      if (isarray(value)) {
        if (!token.repeat) {
          throw new TypeError('Expected "' + token.name + '" to not repeat, but received `' + JSON.stringify(value) + '`')
        }

        if (value.length === 0) {
          if (token.optional) {
            continue
          } else {
            throw new TypeError('Expected "' + token.name + '" to not be empty')
          }
        }

        for (var j = 0; j < value.length; j++) {
          segment = encode(value[j])

          if (!matches[i].test(segment)) {
            throw new TypeError('Expected all "' + token.name + '" to match "' + token.pattern + '", but received `' + JSON.stringify(segment) + '`')
          }

          path += (j === 0 ? token.prefix : token.delimiter) + segment
        }

        continue
      }

      segment = token.asterisk ? encodeAsterisk(value) : encode(value)

      if (!matches[i].test(segment)) {
        throw new TypeError('Expected "' + token.name + '" to match "' + token.pattern + '", but received "' + segment + '"')
      }

      path += token.prefix + segment
    }

    return path
  }
}

/**
 * Escape a regular expression string.
 *
 * @param  {string} str
 * @return {string}
 */
function escapeString (str) {
  return str.replace(/([.+*?=^!:${}()[\]|\/\\])/g, '\\$1')
}

/**
 * Escape the capturing group by escaping special characters and meaning.
 *
 * @param  {string} group
 * @return {string}
 */
function escapeGroup (group) {
  return group.replace(/([=!:$\/()])/g, '\\$1')
}

/**
 * Attach the keys as a property of the regexp.
 *
 * @param  {!RegExp} re
 * @param  {Array}   keys
 * @return {!RegExp}
 */
function attachKeys (re, keys) {
  re.keys = keys
  return re
}

/**
 * Get the flags for a regexp from the options.
 *
 * @param  {Object} options
 * @return {string}
 */
function flags (options) {
  return options.sensitive ? '' : 'i'
}

/**
 * Pull out keys from a regexp.
 *
 * @param  {!RegExp} path
 * @param  {!Array}  keys
 * @return {!RegExp}
 */
function regexpToRegexp (path, keys) {
  // Use a negative lookahead to match only capturing groups.
  var groups = path.source.match(/\((?!\?)/g)

  if (groups) {
    for (var i = 0; i < groups.length; i++) {
      keys.push({
        name: i,
        prefix: null,
        delimiter: null,
        optional: false,
        repeat: false,
        partial: false,
        asterisk: false,
        pattern: null
      })
    }
  }

  return attachKeys(path, keys)
}

/**
 * Transform an array into a regexp.
 *
 * @param  {!Array}  path
 * @param  {Array}   keys
 * @param  {!Object} options
 * @return {!RegExp}
 */
function arrayToRegexp (path, keys, options) {
  var parts = []

  for (var i = 0; i < path.length; i++) {
    parts.push(pathToRegexp(path[i], keys, options).source)
  }

  var regexp = new RegExp('(?:' + parts.join('|') + ')', flags(options))

  return attachKeys(regexp, keys)
}

/**
 * Create a path regexp from string input.
 *
 * @param  {string}  path
 * @param  {!Array}  keys
 * @param  {!Object} options
 * @return {!RegExp}
 */
function stringToRegexp (path, keys, options) {
  return tokensToRegExp(parse(path, options), keys, options)
}

/**
 * Expose a function for taking tokens and returning a RegExp.
 *
 * @param  {!Array}          tokens
 * @param  {(Array|Object)=} keys
 * @param  {Object=}         options
 * @return {!RegExp}
 */
function tokensToRegExp (tokens, keys, options) {
  if (!isarray(keys)) {
    options = /** @type {!Object} */ (keys || options)
    keys = []
  }

  options = options || {}

  var strict = options.strict
  var end = options.end !== false
  var route = ''

  // Iterate over the tokens and create our regexp string.
  for (var i = 0; i < tokens.length; i++) {
    var token = tokens[i]

    if (typeof token === 'string') {
      route += escapeString(token)
    } else {
      var prefix = escapeString(token.prefix)
      var capture = '(?:' + token.pattern + ')'

      keys.push(token)

      if (token.repeat) {
        capture += '(?:' + prefix + capture + ')*'
      }

      if (token.optional) {
        if (!token.partial) {
          capture = '(?:' + prefix + '(' + capture + '))?'
        } else {
          capture = prefix + '(' + capture + ')?'
        }
      } else {
        capture = prefix + '(' + capture + ')'
      }

      route += capture
    }
  }

  var delimiter = escapeString(options.delimiter || '/')
  var endsWithDelimiter = route.slice(-delimiter.length) === delimiter

  // In non-strict mode we allow a slash at the end of match. If the path to
  // match already ends with a slash, we remove it for consistency. The slash
  // is valid at the end of a path match, not in the middle. This is important
  // in non-ending mode, where "/test/" shouldn't match "/test//route".
  if (!strict) {
    route = (endsWithDelimiter ? route.slice(0, -delimiter.length) : route) + '(?:' + delimiter + '(?=$))?'
  }

  if (end) {
    route += '$'
  } else {
    // In non-ending mode, we need the capturing groups to match as much as
    // possible by using a positive lookahead to the end or next path segment.
    route += strict && endsWithDelimiter ? '' : '(?=' + delimiter + '|$)'
  }

  return attachKeys(new RegExp('^' + route, flags(options)), keys)
}

/**
 * Normalize the given path string, returning a regular expression.
 *
 * An empty array can be passed in for the keys, which will hold the
 * placeholder key descriptions. For example, using `/user/:id`, `keys` will
 * contain `[{ name: 'id', delimiter: '/', optional: false, repeat: false }]`.
 *
 * @param  {(string|RegExp|Array)} path
 * @param  {(Array|Object)=}       keys
 * @param  {Object=}               options
 * @return {!RegExp}
 */
function pathToRegexp (path, keys, options) {
  if (!isarray(keys)) {
    options = /** @type {!Object} */ (keys || options)
    keys = []
  }

  options = options || {}

  if (path instanceof RegExp) {
    return regexpToRegexp(path, /** @type {!Array} */ (keys))
  }

  if (isarray(path)) {
    return arrayToRegexp(/** @type {!Array} */ (path), /** @type {!Array} */ (keys), options)
  }

  return stringToRegexp(/** @type {string} */ (path), /** @type {!Array} */ (keys), options)
}

},{"isarray":17}],22:[function(require,module,exports){
(function (process){
// Generated by CoffeeScript 1.12.2
(function() {
  var getNanoSeconds, hrtime, loadTime, moduleLoadTime, nodeLoadTime, upTime;

  if ((typeof performance !== "undefined" && performance !== null) && performance.now) {
    module.exports = function() {
      return performance.now();
    };
  } else if ((typeof process !== "undefined" && process !== null) && process.hrtime) {
    module.exports = function() {
      return (getNanoSeconds() - nodeLoadTime) / 1e6;
    };
    hrtime = process.hrtime;
    getNanoSeconds = function() {
      var hr;
      hr = hrtime();
      return hr[0] * 1e9 + hr[1];
    };
    moduleLoadTime = getNanoSeconds();
    upTime = process.uptime() * 1e9;
    nodeLoadTime = moduleLoadTime - upTime;
  } else if (Date.now) {
    module.exports = function() {
      return Date.now() - loadTime;
    };
    loadTime = Date.now();
  } else {
    module.exports = function() {
      return new Date().getTime() - loadTime;
    };
    loadTime = new Date().getTime();
  }

}).call(this);



}).call(this,require('_process'))
},{"_process":24}],23:[function(require,module,exports){
var div = null
var prefixes = [ 'Webkit', 'Moz', 'O', 'ms' ]

module.exports = function prefixStyle (prop) {
  // re-use a dummy div
  if (!div) {
    div = document.createElement('div')
  }

  var style = div.style

  // prop exists without prefix
  if (prop in style) {
    return prop
  }

  // borderRadius -> BorderRadius
  var titleCase = prop.charAt(0).toUpperCase() + prop.slice(1)

  // find the vendor-prefixed prop
  for (var i = prefixes.length; i >= 0; i--) {
    var name = prefixes[i] + titleCase
    // e.g. WebkitBorderRadius or webkitBorderRadius
    if (name in style) {
      return name
    }
  }

  return false
}

},{}],24:[function(require,module,exports){
// shim for using process in browser
var process = module.exports = {};

// cached from whatever global is present so that test runners that stub it
// don't break things.  But we need to wrap it in a try catch in case it is
// wrapped in strict mode code which doesn't define any globals.  It's inside a
// function because try/catches deoptimize in certain engines.

var cachedSetTimeout;
var cachedClearTimeout;

function defaultSetTimout() {
    throw new Error('setTimeout has not been defined');
}
function defaultClearTimeout () {
    throw new Error('clearTimeout has not been defined');
}
(function () {
    try {
        if (typeof setTimeout === 'function') {
            cachedSetTimeout = setTimeout;
        } else {
            cachedSetTimeout = defaultSetTimout;
        }
    } catch (e) {
        cachedSetTimeout = defaultSetTimout;
    }
    try {
        if (typeof clearTimeout === 'function') {
            cachedClearTimeout = clearTimeout;
        } else {
            cachedClearTimeout = defaultClearTimeout;
        }
    } catch (e) {
        cachedClearTimeout = defaultClearTimeout;
    }
} ())
function runTimeout(fun) {
    if (cachedSetTimeout === setTimeout) {
        //normal enviroments in sane situations
        return setTimeout(fun, 0);
    }
    // if setTimeout wasn't available but was latter defined
    if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
        cachedSetTimeout = setTimeout;
        return setTimeout(fun, 0);
    }
    try {
        // when when somebody has screwed with setTimeout but no I.E. maddness
        return cachedSetTimeout(fun, 0);
    } catch(e){
        try {
            // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
            return cachedSetTimeout.call(null, fun, 0);
        } catch(e){
            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
            return cachedSetTimeout.call(this, fun, 0);
        }
    }


}
function runClearTimeout(marker) {
    if (cachedClearTimeout === clearTimeout) {
        //normal enviroments in sane situations
        return clearTimeout(marker);
    }
    // if clearTimeout wasn't available but was latter defined
    if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
        cachedClearTimeout = clearTimeout;
        return clearTimeout(marker);
    }
    try {
        // when when somebody has screwed with setTimeout but no I.E. maddness
        return cachedClearTimeout(marker);
    } catch (e){
        try {
            // When we are in I.E. but the script has been evaled so I.E. doesn't  trust the global object when called normally
            return cachedClearTimeout.call(null, marker);
        } catch (e){
            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
            // Some versions of I.E. have different rules for clearTimeout vs setTimeout
            return cachedClearTimeout.call(this, marker);
        }
    }



}
var queue = [];
var draining = false;
var currentQueue;
var queueIndex = -1;

function cleanUpNextTick() {
    if (!draining || !currentQueue) {
        return;
    }
    draining = false;
    if (currentQueue.length) {
        queue = currentQueue.concat(queue);
    } else {
        queueIndex = -1;
    }
    if (queue.length) {
        drainQueue();
    }
}

function drainQueue() {
    if (draining) {
        return;
    }
    var timeout = runTimeout(cleanUpNextTick);
    draining = true;

    var len = queue.length;
    while(len) {
        currentQueue = queue;
        queue = [];
        while (++queueIndex < len) {
            if (currentQueue) {
                currentQueue[queueIndex].run();
            }
        }
        queueIndex = -1;
        len = queue.length;
    }
    currentQueue = null;
    draining = false;
    runClearTimeout(timeout);
}

process.nextTick = function (fun) {
    var args = new Array(arguments.length - 1);
    if (arguments.length > 1) {
        for (var i = 1; i < arguments.length; i++) {
            args[i - 1] = arguments[i];
        }
    }
    queue.push(new Item(fun, args));
    if (queue.length === 1 && !draining) {
        runTimeout(drainQueue);
    }
};

// v8 likes predictible objects
function Item(fun, array) {
    this.fun = fun;
    this.array = array;
}
Item.prototype.run = function () {
    this.fun.apply(null, this.array);
};
process.title = 'browser';
process.browser = true;
process.env = {};
process.argv = [];
process.version = ''; // empty string to avoid regexp issues
process.versions = {};

function noop() {}

process.on = noop;
process.addListener = noop;
process.once = noop;
process.off = noop;
process.removeListener = noop;
process.removeAllListeners = noop;
process.emit = noop;
process.prependListener = noop;
process.prependOnceListener = noop;

process.listeners = function (name) { return [] }

process.binding = function (name) {
    throw new Error('process.binding is not supported');
};

process.cwd = function () { return '/' };
process.chdir = function (dir) {
    throw new Error('process.chdir is not supported');
};
process.umask = function() { return 0; };

},{}],25:[function(require,module,exports){
(function (process){
/**
 * Copyright (c) 2013-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

'use strict';

var printWarning = function() {};

if (process.env.NODE_ENV !== 'production') {
  var ReactPropTypesSecret = require('./lib/ReactPropTypesSecret');
  var loggedTypeFailures = {};
  var has = Function.call.bind(Object.prototype.hasOwnProperty);

  printWarning = function(text) {
    var message = 'Warning: ' + text;
    if (typeof console !== 'undefined') {
      console.error(message);
    }
    try {
      // --- Welcome to debugging React ---
      // This error was thrown as a convenience so that you can use this stack
      // to find the callsite that caused this warning to fire.
      throw new Error(message);
    } catch (x) {}
  };
}

/**
 * Assert that the values match with the type specs.
 * Error messages are memorized and will only be shown once.
 *
 * @param {object} typeSpecs Map of name to a ReactPropType
 * @param {object} values Runtime values that need to be type-checked
 * @param {string} location e.g. "prop", "context", "child context"
 * @param {string} componentName Name of the component for error messages.
 * @param {?Function} getStack Returns the component stack.
 * @private
 */
function checkPropTypes(typeSpecs, values, location, componentName, getStack) {
  if (process.env.NODE_ENV !== 'production') {
    for (var typeSpecName in typeSpecs) {
      if (has(typeSpecs, typeSpecName)) {
        var error;
        // Prop type validation may throw. In case they do, we don't want to
        // fail the render phase where it didn't fail before. So we log it.
        // After these have been cleaned up, we'll let them throw.
        try {
          // This is intentionally an invariant that gets caught. It's the same
          // behavior as without this statement except with a better message.
          if (typeof typeSpecs[typeSpecName] !== 'function') {
            var err = Error(
              (componentName || 'React class') + ': ' + location + ' type `' + typeSpecName + '` is invalid; ' +
              'it must be a function, usually from the `prop-types` package, but received `' + typeof typeSpecs[typeSpecName] + '`.'
            );
            err.name = 'Invariant Violation';
            throw err;
          }
          error = typeSpecs[typeSpecName](values, typeSpecName, componentName, location, null, ReactPropTypesSecret);
        } catch (ex) {
          error = ex;
        }
        if (error && !(error instanceof Error)) {
          printWarning(
            (componentName || 'React class') + ': type specification of ' +
            location + ' `' + typeSpecName + '` is invalid; the type checker ' +
            'function must return `null` or an `Error` but returned a ' + typeof error + '. ' +
            'You may have forgotten to pass an argument to the type checker ' +
            'creator (arrayOf, instanceOf, objectOf, oneOf, oneOfType, and ' +
            'shape all require an argument).'
          );
        }
        if (error instanceof Error && !(error.message in loggedTypeFailures)) {
          // Only monitor this failure once because there tends to be a lot of the
          // same error.
          loggedTypeFailures[error.message] = true;

          var stack = getStack ? getStack() : '';

          printWarning(
            'Failed ' + location + ' type: ' + error.message + (stack != null ? stack : '')
          );
        }
      }
    }
  }
}

/**
 * Resets warning cache when testing.
 *
 * @private
 */
checkPropTypes.resetWarningCache = function() {
  if (process.env.NODE_ENV !== 'production') {
    loggedTypeFailures = {};
  }
}

module.exports = checkPropTypes;

}).call(this,require('_process'))
},{"./lib/ReactPropTypesSecret":29,"_process":24}],26:[function(require,module,exports){
/**
 * Copyright (c) 2013-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

'use strict';

var ReactPropTypesSecret = require('./lib/ReactPropTypesSecret');

function emptyFunction() {}
function emptyFunctionWithReset() {}
emptyFunctionWithReset.resetWarningCache = emptyFunction;

module.exports = function() {
  function shim(props, propName, componentName, location, propFullName, secret) {
    if (secret === ReactPropTypesSecret) {
      // It is still safe when called from React.
      return;
    }
    var err = new Error(
      'Calling PropTypes validators directly is not supported by the `prop-types` package. ' +
      'Use PropTypes.checkPropTypes() to call them. ' +
      'Read more at http://fb.me/use-check-prop-types'
    );
    err.name = 'Invariant Violation';
    throw err;
  };
  shim.isRequired = shim;
  function getShim() {
    return shim;
  };
  // Important!
  // Keep this list in sync with production version in `./factoryWithTypeCheckers.js`.
  var ReactPropTypes = {
    array: shim,
    bool: shim,
    func: shim,
    number: shim,
    object: shim,
    string: shim,
    symbol: shim,

    any: shim,
    arrayOf: getShim,
    element: shim,
    elementType: shim,
    instanceOf: getShim,
    node: shim,
    objectOf: getShim,
    oneOf: getShim,
    oneOfType: getShim,
    shape: getShim,
    exact: getShim,

    checkPropTypes: emptyFunctionWithReset,
    resetWarningCache: emptyFunction
  };

  ReactPropTypes.PropTypes = ReactPropTypes;

  return ReactPropTypes;
};

},{"./lib/ReactPropTypesSecret":29}],27:[function(require,module,exports){
(function (process){
/**
 * Copyright (c) 2013-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

'use strict';

var ReactIs = require('react-is');
var assign = require('object-assign');

var ReactPropTypesSecret = require('./lib/ReactPropTypesSecret');
var checkPropTypes = require('./checkPropTypes');

var has = Function.call.bind(Object.prototype.hasOwnProperty);
var printWarning = function() {};

if (process.env.NODE_ENV !== 'production') {
  printWarning = function(text) {
    var message = 'Warning: ' + text;
    if (typeof console !== 'undefined') {
      console.error(message);
    }
    try {
      // --- Welcome to debugging React ---
      // This error was thrown as a convenience so that you can use this stack
      // to find the callsite that caused this warning to fire.
      throw new Error(message);
    } catch (x) {}
  };
}

function emptyFunctionThatReturnsNull() {
  return null;
}

module.exports = function(isValidElement, throwOnDirectAccess) {
  /* global Symbol */
  var ITERATOR_SYMBOL = typeof Symbol === 'function' && Symbol.iterator;
  var FAUX_ITERATOR_SYMBOL = '@@iterator'; // Before Symbol spec.

  /**
   * Returns the iterator method function contained on the iterable object.
   *
   * Be sure to invoke the function with the iterable as context:
   *
   *     var iteratorFn = getIteratorFn(myIterable);
   *     if (iteratorFn) {
   *       var iterator = iteratorFn.call(myIterable);
   *       ...
   *     }
   *
   * @param {?object} maybeIterable
   * @return {?function}
   */
  function getIteratorFn(maybeIterable) {
    var iteratorFn = maybeIterable && (ITERATOR_SYMBOL && maybeIterable[ITERATOR_SYMBOL] || maybeIterable[FAUX_ITERATOR_SYMBOL]);
    if (typeof iteratorFn === 'function') {
      return iteratorFn;
    }
  }

  /**
   * Collection of methods that allow declaration and validation of props that are
   * supplied to React components. Example usage:
   *
   *   var Props = require('ReactPropTypes');
   *   var MyArticle = React.createClass({
   *     propTypes: {
   *       // An optional string prop named "description".
   *       description: Props.string,
   *
   *       // A required enum prop named "category".
   *       category: Props.oneOf(['News','Photos']).isRequired,
   *
   *       // A prop named "dialog" that requires an instance of Dialog.
   *       dialog: Props.instanceOf(Dialog).isRequired
   *     },
   *     render: function() { ... }
   *   });
   *
   * A more formal specification of how these methods are used:
   *
   *   type := array|bool|func|object|number|string|oneOf([...])|instanceOf(...)
   *   decl := ReactPropTypes.{type}(.isRequired)?
   *
   * Each and every declaration produces a function with the same signature. This
   * allows the creation of custom validation functions. For example:
   *
   *  var MyLink = React.createClass({
   *    propTypes: {
   *      // An optional string or URI prop named "href".
   *      href: function(props, propName, componentName) {
   *        var propValue = props[propName];
   *        if (propValue != null && typeof propValue !== 'string' &&
   *            !(propValue instanceof URI)) {
   *          return new Error(
   *            'Expected a string or an URI for ' + propName + ' in ' +
   *            componentName
   *          );
   *        }
   *      }
   *    },
   *    render: function() {...}
   *  });
   *
   * @internal
   */

  var ANONYMOUS = '<<anonymous>>';

  // Important!
  // Keep this list in sync with production version in `./factoryWithThrowingShims.js`.
  var ReactPropTypes = {
    array: createPrimitiveTypeChecker('array'),
    bool: createPrimitiveTypeChecker('boolean'),
    func: createPrimitiveTypeChecker('function'),
    number: createPrimitiveTypeChecker('number'),
    object: createPrimitiveTypeChecker('object'),
    string: createPrimitiveTypeChecker('string'),
    symbol: createPrimitiveTypeChecker('symbol'),

    any: createAnyTypeChecker(),
    arrayOf: createArrayOfTypeChecker,
    element: createElementTypeChecker(),
    elementType: createElementTypeTypeChecker(),
    instanceOf: createInstanceTypeChecker,
    node: createNodeChecker(),
    objectOf: createObjectOfTypeChecker,
    oneOf: createEnumTypeChecker,
    oneOfType: createUnionTypeChecker,
    shape: createShapeTypeChecker,
    exact: createStrictShapeTypeChecker,
  };

  /**
   * inlined Object.is polyfill to avoid requiring consumers ship their own
   * https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is
   */
  /*eslint-disable no-self-compare*/
  function is(x, y) {
    // SameValue algorithm
    if (x === y) {
      // Steps 1-5, 7-10
      // Steps 6.b-6.e: +0 != -0
      return x !== 0 || 1 / x === 1 / y;
    } else {
      // Step 6.a: NaN == NaN
      return x !== x && y !== y;
    }
  }
  /*eslint-enable no-self-compare*/

  /**
   * We use an Error-like object for backward compatibility as people may call
   * PropTypes directly and inspect their output. However, we don't use real
   * Errors anymore. We don't inspect their stack anyway, and creating them
   * is prohibitively expensive if they are created too often, such as what
   * happens in oneOfType() for any type before the one that matched.
   */
  function PropTypeError(message) {
    this.message = message;
    this.stack = '';
  }
  // Make `instanceof Error` still work for returned errors.
  PropTypeError.prototype = Error.prototype;

  function createChainableTypeChecker(validate) {
    if (process.env.NODE_ENV !== 'production') {
      var manualPropTypeCallCache = {};
      var manualPropTypeWarningCount = 0;
    }
    function checkType(isRequired, props, propName, componentName, location, propFullName, secret) {
      componentName = componentName || ANONYMOUS;
      propFullName = propFullName || propName;

      if (secret !== ReactPropTypesSecret) {
        if (throwOnDirectAccess) {
          // New behavior only for users of `prop-types` package
          var err = new Error(
            'Calling PropTypes validators directly is not supported by the `prop-types` package. ' +
            'Use `PropTypes.checkPropTypes()` to call them. ' +
            'Read more at http://fb.me/use-check-prop-types'
          );
          err.name = 'Invariant Violation';
          throw err;
        } else if (process.env.NODE_ENV !== 'production' && typeof console !== 'undefined') {
          // Old behavior for people using React.PropTypes
          var cacheKey = componentName + ':' + propName;
          if (
            !manualPropTypeCallCache[cacheKey] &&
            // Avoid spamming the console because they are often not actionable except for lib authors
            manualPropTypeWarningCount < 3
          ) {
            printWarning(
              'You are manually calling a React.PropTypes validation ' +
              'function for the `' + propFullName + '` prop on `' + componentName  + '`. This is deprecated ' +
              'and will throw in the standalone `prop-types` package. ' +
              'You may be seeing this warning due to a third-party PropTypes ' +
              'library. See https://fb.me/react-warning-dont-call-proptypes ' + 'for details.'
            );
            manualPropTypeCallCache[cacheKey] = true;
            manualPropTypeWarningCount++;
          }
        }
      }
      if (props[propName] == null) {
        if (isRequired) {
          if (props[propName] === null) {
            return new PropTypeError('The ' + location + ' `' + propFullName + '` is marked as required ' + ('in `' + componentName + '`, but its value is `null`.'));
          }
          return new PropTypeError('The ' + location + ' `' + propFullName + '` is marked as required in ' + ('`' + componentName + '`, but its value is `undefined`.'));
        }
        return null;
      } else {
        return validate(props, propName, componentName, location, propFullName);
      }
    }

    var chainedCheckType = checkType.bind(null, false);
    chainedCheckType.isRequired = checkType.bind(null, true);

    return chainedCheckType;
  }

  function createPrimitiveTypeChecker(expectedType) {
    function validate(props, propName, componentName, location, propFullName, secret) {
      var propValue = props[propName];
      var propType = getPropType(propValue);
      if (propType !== expectedType) {
        // `propValue` being instance of, say, date/regexp, pass the 'object'
        // check, but we can offer a more precise error message here rather than
        // 'of type `object`'.
        var preciseType = getPreciseType(propValue);

        return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type ' + ('`' + preciseType + '` supplied to `' + componentName + '`, expected ') + ('`' + expectedType + '`.'));
      }
      return null;
    }
    return createChainableTypeChecker(validate);
  }

  function createAnyTypeChecker() {
    return createChainableTypeChecker(emptyFunctionThatReturnsNull);
  }

  function createArrayOfTypeChecker(typeChecker) {
    function validate(props, propName, componentName, location, propFullName) {
      if (typeof typeChecker !== 'function') {
        return new PropTypeError('Property `' + propFullName + '` of component `' + componentName + '` has invalid PropType notation inside arrayOf.');
      }
      var propValue = props[propName];
      if (!Array.isArray(propValue)) {
        var propType = getPropType(propValue);
        return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type ' + ('`' + propType + '` supplied to `' + componentName + '`, expected an array.'));
      }
      for (var i = 0; i < propValue.length; i++) {
        var error = typeChecker(propValue, i, componentName, location, propFullName + '[' + i + ']', ReactPropTypesSecret);
        if (error instanceof Error) {
          return error;
        }
      }
      return null;
    }
    return createChainableTypeChecker(validate);
  }

  function createElementTypeChecker() {
    function validate(props, propName, componentName, location, propFullName) {
      var propValue = props[propName];
      if (!isValidElement(propValue)) {
        var propType = getPropType(propValue);
        return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type ' + ('`' + propType + '` supplied to `' + componentName + '`, expected a single ReactElement.'));
      }
      return null;
    }
    return createChainableTypeChecker(validate);
  }

  function createElementTypeTypeChecker() {
    function validate(props, propName, componentName, location, propFullName) {
      var propValue = props[propName];
      if (!ReactIs.isValidElementType(propValue)) {
        var propType = getPropType(propValue);
        return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type ' + ('`' + propType + '` supplied to `' + componentName + '`, expected a single ReactElement type.'));
      }
      return null;
    }
    return createChainableTypeChecker(validate);
  }

  function createInstanceTypeChecker(expectedClass) {
    function validate(props, propName, componentName, location, propFullName) {
      if (!(props[propName] instanceof expectedClass)) {
        var expectedClassName = expectedClass.name || ANONYMOUS;
        var actualClassName = getClassName(props[propName]);
        return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type ' + ('`' + actualClassName + '` supplied to `' + componentName + '`, expected ') + ('instance of `' + expectedClassName + '`.'));
      }
      return null;
    }
    return createChainableTypeChecker(validate);
  }

  function createEnumTypeChecker(expectedValues) {
    if (!Array.isArray(expectedValues)) {
      if (process.env.NODE_ENV !== 'production') {
        if (arguments.length > 1) {
          printWarning(
            'Invalid arguments supplied to oneOf, expected an array, got ' + arguments.length + ' arguments. ' +
            'A common mistake is to write oneOf(x, y, z) instead of oneOf([x, y, z]).'
          );
        } else {
          printWarning('Invalid argument supplied to oneOf, expected an array.');
        }
      }
      return emptyFunctionThatReturnsNull;
    }

    function validate(props, propName, componentName, location, propFullName) {
      var propValue = props[propName];
      for (var i = 0; i < expectedValues.length; i++) {
        if (is(propValue, expectedValues[i])) {
          return null;
        }
      }

      var valuesString = JSON.stringify(expectedValues, function replacer(key, value) {
        var type = getPreciseType(value);
        if (type === 'symbol') {
          return String(value);
        }
        return value;
      });
      return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of value `' + String(propValue) + '` ' + ('supplied to `' + componentName + '`, expected one of ' + valuesString + '.'));
    }
    return createChainableTypeChecker(validate);
  }

  function createObjectOfTypeChecker(typeChecker) {
    function validate(props, propName, componentName, location, propFullName) {
      if (typeof typeChecker !== 'function') {
        return new PropTypeError('Property `' + propFullName + '` of component `' + componentName + '` has invalid PropType notation inside objectOf.');
      }
      var propValue = props[propName];
      var propType = getPropType(propValue);
      if (propType !== 'object') {
        return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type ' + ('`' + propType + '` supplied to `' + componentName + '`, expected an object.'));
      }
      for (var key in propValue) {
        if (has(propValue, key)) {
          var error = typeChecker(propValue, key, componentName, location, propFullName + '.' + key, ReactPropTypesSecret);
          if (error instanceof Error) {
            return error;
          }
        }
      }
      return null;
    }
    return createChainableTypeChecker(validate);
  }

  function createUnionTypeChecker(arrayOfTypeCheckers) {
    if (!Array.isArray(arrayOfTypeCheckers)) {
      process.env.NODE_ENV !== 'production' ? printWarning('Invalid argument supplied to oneOfType, expected an instance of array.') : void 0;
      return emptyFunctionThatReturnsNull;
    }

    for (var i = 0; i < arrayOfTypeCheckers.length; i++) {
      var checker = arrayOfTypeCheckers[i];
      if (typeof checker !== 'function') {
        printWarning(
          'Invalid argument supplied to oneOfType. Expected an array of check functions, but ' +
          'received ' + getPostfixForTypeWarning(checker) + ' at index ' + i + '.'
        );
        return emptyFunctionThatReturnsNull;
      }
    }

    function validate(props, propName, componentName, location, propFullName) {
      for (var i = 0; i < arrayOfTypeCheckers.length; i++) {
        var checker = arrayOfTypeCheckers[i];
        if (checker(props, propName, componentName, location, propFullName, ReactPropTypesSecret) == null) {
          return null;
        }
      }

      return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` supplied to ' + ('`' + componentName + '`.'));
    }
    return createChainableTypeChecker(validate);
  }

  function createNodeChecker() {
    function validate(props, propName, componentName, location, propFullName) {
      if (!isNode(props[propName])) {
        return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` supplied to ' + ('`' + componentName + '`, expected a ReactNode.'));
      }
      return null;
    }
    return createChainableTypeChecker(validate);
  }

  function createShapeTypeChecker(shapeTypes) {
    function validate(props, propName, componentName, location, propFullName) {
      var propValue = props[propName];
      var propType = getPropType(propValue);
      if (propType !== 'object') {
        return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type `' + propType + '` ' + ('supplied to `' + componentName + '`, expected `object`.'));
      }
      for (var key in shapeTypes) {
        var checker = shapeTypes[key];
        if (!checker) {
          continue;
        }
        var error = checker(propValue, key, componentName, location, propFullName + '.' + key, ReactPropTypesSecret);
        if (error) {
          return error;
        }
      }
      return null;
    }
    return createChainableTypeChecker(validate);
  }

  function createStrictShapeTypeChecker(shapeTypes) {
    function validate(props, propName, componentName, location, propFullName) {
      var propValue = props[propName];
      var propType = getPropType(propValue);
      if (propType !== 'object') {
        return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type `' + propType + '` ' + ('supplied to `' + componentName + '`, expected `object`.'));
      }
      // We need to check all keys in case some are required but missing from
      // props.
      var allKeys = assign({}, props[propName], shapeTypes);
      for (var key in allKeys) {
        var checker = shapeTypes[key];
        if (!checker) {
          return new PropTypeError(
            'Invalid ' + location + ' `' + propFullName + '` key `' + key + '` supplied to `' + componentName + '`.' +
            '\nBad object: ' + JSON.stringify(props[propName], null, '  ') +
            '\nValid keys: ' +  JSON.stringify(Object.keys(shapeTypes), null, '  ')
          );
        }
        var error = checker(propValue, key, componentName, location, propFullName + '.' + key, ReactPropTypesSecret);
        if (error) {
          return error;
        }
      }
      return null;
    }

    return createChainableTypeChecker(validate);
  }

  function isNode(propValue) {
    switch (typeof propValue) {
      case 'number':
      case 'string':
      case 'undefined':
        return true;
      case 'boolean':
        return !propValue;
      case 'object':
        if (Array.isArray(propValue)) {
          return propValue.every(isNode);
        }
        if (propValue === null || isValidElement(propValue)) {
          return true;
        }

        var iteratorFn = getIteratorFn(propValue);
        if (iteratorFn) {
          var iterator = iteratorFn.call(propValue);
          var step;
          if (iteratorFn !== propValue.entries) {
            while (!(step = iterator.next()).done) {
              if (!isNode(step.value)) {
                return false;
              }
            }
          } else {
            // Iterator will provide entry [k,v] tuples rather than values.
            while (!(step = iterator.next()).done) {
              var entry = step.value;
              if (entry) {
                if (!isNode(entry[1])) {
                  return false;
                }
              }
            }
          }
        } else {
          return false;
        }

        return true;
      default:
        return false;
    }
  }

  function isSymbol(propType, propValue) {
    // Native Symbol.
    if (propType === 'symbol') {
      return true;
    }

    // falsy value can't be a Symbol
    if (!propValue) {
      return false;
    }

    // 19.4.3.5 Symbol.prototype[@@toStringTag] === 'Symbol'
    if (propValue['@@toStringTag'] === 'Symbol') {
      return true;
    }

    // Fallback for non-spec compliant Symbols which are polyfilled.
    if (typeof Symbol === 'function' && propValue instanceof Symbol) {
      return true;
    }

    return false;
  }

  // Equivalent of `typeof` but with special handling for array and regexp.
  function getPropType(propValue) {
    var propType = typeof propValue;
    if (Array.isArray(propValue)) {
      return 'array';
    }
    if (propValue instanceof RegExp) {
      // Old webkits (at least until Android 4.0) return 'function' rather than
      // 'object' for typeof a RegExp. We'll normalize this here so that /bla/
      // passes PropTypes.object.
      return 'object';
    }
    if (isSymbol(propType, propValue)) {
      return 'symbol';
    }
    return propType;
  }

  // This handles more types than `getPropType`. Only used for error messages.
  // See `createPrimitiveTypeChecker`.
  function getPreciseType(propValue) {
    if (typeof propValue === 'undefined' || propValue === null) {
      return '' + propValue;
    }
    var propType = getPropType(propValue);
    if (propType === 'object') {
      if (propValue instanceof Date) {
        return 'date';
      } else if (propValue instanceof RegExp) {
        return 'regexp';
      }
    }
    return propType;
  }

  // Returns a string that is postfixed to a warning about an invalid type.
  // For example, "undefined" or "of type array"
  function getPostfixForTypeWarning(value) {
    var type = getPreciseType(value);
    switch (type) {
      case 'array':
      case 'object':
        return 'an ' + type;
      case 'boolean':
      case 'date':
      case 'regexp':
        return 'a ' + type;
      default:
        return type;
    }
  }

  // Returns class name of the object, if any.
  function getClassName(propValue) {
    if (!propValue.constructor || !propValue.constructor.name) {
      return ANONYMOUS;
    }
    return propValue.constructor.name;
  }

  ReactPropTypes.checkPropTypes = checkPropTypes;
  ReactPropTypes.resetWarningCache = checkPropTypes.resetWarningCache;
  ReactPropTypes.PropTypes = ReactPropTypes;

  return ReactPropTypes;
};

}).call(this,require('_process'))
},{"./checkPropTypes":25,"./lib/ReactPropTypesSecret":29,"_process":24,"object-assign":20,"react-is":45}],28:[function(require,module,exports){
(function (process){
/**
 * Copyright (c) 2013-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

if (process.env.NODE_ENV !== 'production') {
  var ReactIs = require('react-is');

  // By explicitly using `prop-types` you are opting into new development behavior.
  // http://fb.me/prop-types-in-prod
  var throwOnDirectAccess = true;
  module.exports = require('./factoryWithTypeCheckers')(ReactIs.isElement, throwOnDirectAccess);
} else {
  // By explicitly using `prop-types` you are opting into new production behavior.
  // http://fb.me/prop-types-in-prod
  module.exports = require('./factoryWithThrowingShims')();
}

}).call(this,require('_process'))
},{"./factoryWithThrowingShims":26,"./factoryWithTypeCheckers":27,"_process":24,"react-is":45}],29:[function(require,module,exports){
/**
 * Copyright (c) 2013-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

'use strict';

var ReactPropTypesSecret = 'SECRET_DO_NOT_PASS_THIS_OR_YOU_WILL_BE_FIRED';

module.exports = ReactPropTypesSecret;

},{}],30:[function(require,module,exports){
(function (global){
var now = require('performance-now')
  , root = typeof window === 'undefined' ? global : window
  , vendors = ['moz', 'webkit']
  , suffix = 'AnimationFrame'
  , raf = root['request' + suffix]
  , caf = root['cancel' + suffix] || root['cancelRequest' + suffix]

for(var i = 0; !raf && i < vendors.length; i++) {
  raf = root[vendors[i] + 'Request' + suffix]
  caf = root[vendors[i] + 'Cancel' + suffix]
      || root[vendors[i] + 'CancelRequest' + suffix]
}

// Some versions of FF have rAF but not cAF
if(!raf || !caf) {
  var last = 0
    , id = 0
    , queue = []
    , frameDuration = 1000 / 60

  raf = function(callback) {
    if(queue.length === 0) {
      var _now = now()
        , next = Math.max(0, frameDuration - (_now - last))
      last = next + _now
      setTimeout(function() {
        var cp = queue.slice(0)
        // Clear queue here to prevent
        // callbacks from appending listeners
        // to the current frame's queue
        queue.length = 0
        for(var i = 0; i < cp.length; i++) {
          if(!cp[i].cancelled) {
            try{
              cp[i].callback(last)
            } catch(e) {
              setTimeout(function() { throw e }, 0)
            }
          }
        }
      }, Math.round(next))
    }
    queue.push({
      handle: ++id,
      callback: callback,
      cancelled: false
    })
    return id
  }

  caf = function(handle) {
    for(var i = 0; i < queue.length; i++) {
      if(queue[i].handle === handle) {
        queue[i].cancelled = true
      }
    }
  }
}

module.exports = function(fn) {
  // Wrap in a new function to prevent
  // `cancel` potentially being assigned
  // to the native rAF function
  return raf.call(root, fn)
}
module.exports.cancel = function() {
  caf.apply(root, arguments)
}
module.exports.polyfill = function(object) {
  if (!object) {
    object = root;
  }
  object.requestAnimationFrame = raf
  object.cancelAnimationFrame = caf
}

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"performance-now":22}],31:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
    value: true
});

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

exports.renderViewDefault = renderViewDefault;
exports.renderTrackHorizontalDefault = renderTrackHorizontalDefault;
exports.renderTrackVerticalDefault = renderTrackVerticalDefault;
exports.renderThumbHorizontalDefault = renderThumbHorizontalDefault;
exports.renderThumbVerticalDefault = renderThumbVerticalDefault;

var _react = require('react');

var _react2 = _interopRequireDefault(_react);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

function _objectWithoutProperties(obj, keys) { var target = {}; for (var i in obj) { if (keys.indexOf(i) >= 0) continue; if (!Object.prototype.hasOwnProperty.call(obj, i)) continue; target[i] = obj[i]; } return target; }

/* eslint-disable react/prop-types */

function renderViewDefault(props) {
    return _react2["default"].createElement('div', props);
}

function renderTrackHorizontalDefault(_ref) {
    var style = _ref.style,
        props = _objectWithoutProperties(_ref, ['style']);

    var finalStyle = _extends({}, style, {
        right: 2,
        bottom: 2,
        left: 2,
        borderRadius: 3
    });
    return _react2["default"].createElement('div', _extends({ style: finalStyle }, props));
}

function renderTrackVerticalDefault(_ref2) {
    var style = _ref2.style,
        props = _objectWithoutProperties(_ref2, ['style']);

    var finalStyle = _extends({}, style, {
        right: 2,
        bottom: 2,
        top: 2,
        borderRadius: 3
    });
    return _react2["default"].createElement('div', _extends({ style: finalStyle }, props));
}

function renderThumbHorizontalDefault(_ref3) {
    var style = _ref3.style,
        props = _objectWithoutProperties(_ref3, ['style']);

    var finalStyle = _extends({}, style, {
        cursor: 'pointer',
        borderRadius: 'inherit',
        backgroundColor: 'rgba(0,0,0,.2)'
    });
    return _react2["default"].createElement('div', _extends({ style: finalStyle }, props));
}

function renderThumbVerticalDefault(_ref4) {
    var style = _ref4.style,
        props = _objectWithoutProperties(_ref4, ['style']);

    var finalStyle = _extends({}, style, {
        cursor: 'pointer',
        borderRadius: 'inherit',
        backgroundColor: 'rgba(0,0,0,.2)'
    });
    return _react2["default"].createElement('div', _extends({ style: finalStyle }, props));
}
},{"react":73}],32:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
    value: true
});

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _raf2 = require('raf');

var _raf3 = _interopRequireDefault(_raf2);

var _domCss = require('dom-css');

var _domCss2 = _interopRequireDefault(_domCss);

var _react = require('react');

var _propTypes = require('prop-types');

var _propTypes2 = _interopRequireDefault(_propTypes);

var _isString = require('../utils/isString');

var _isString2 = _interopRequireDefault(_isString);

var _getScrollbarWidth = require('../utils/getScrollbarWidth');

var _getScrollbarWidth2 = _interopRequireDefault(_getScrollbarWidth);

var _returnFalse = require('../utils/returnFalse');

var _returnFalse2 = _interopRequireDefault(_returnFalse);

var _getInnerWidth = require('../utils/getInnerWidth');

var _getInnerWidth2 = _interopRequireDefault(_getInnerWidth);

var _getInnerHeight = require('../utils/getInnerHeight');

var _getInnerHeight2 = _interopRequireDefault(_getInnerHeight);

var _styles = require('./styles');

var _defaultRenderElements = require('./defaultRenderElements');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

function _objectWithoutProperties(obj, keys) { var target = {}; for (var i in obj) { if (keys.indexOf(i) >= 0) continue; if (!Object.prototype.hasOwnProperty.call(obj, i)) continue; target[i] = obj[i]; } return target; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var Scrollbars = function (_Component) {
    _inherits(Scrollbars, _Component);

    function Scrollbars(props) {
        var _ref;

        _classCallCheck(this, Scrollbars);

        for (var _len = arguments.length, rest = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
            rest[_key - 1] = arguments[_key];
        }

        var _this = _possibleConstructorReturn(this, (_ref = Scrollbars.__proto__ || Object.getPrototypeOf(Scrollbars)).call.apply(_ref, [this, props].concat(rest)));

        _this.getScrollLeft = _this.getScrollLeft.bind(_this);
        _this.getScrollTop = _this.getScrollTop.bind(_this);
        _this.getScrollWidth = _this.getScrollWidth.bind(_this);
        _this.getScrollHeight = _this.getScrollHeight.bind(_this);
        _this.getClientWidth = _this.getClientWidth.bind(_this);
        _this.getClientHeight = _this.getClientHeight.bind(_this);
        _this.getValues = _this.getValues.bind(_this);
        _this.getThumbHorizontalWidth = _this.getThumbHorizontalWidth.bind(_this);
        _this.getThumbVerticalHeight = _this.getThumbVerticalHeight.bind(_this);
        _this.getScrollLeftForOffset = _this.getScrollLeftForOffset.bind(_this);
        _this.getScrollTopForOffset = _this.getScrollTopForOffset.bind(_this);

        _this.scrollLeft = _this.scrollLeft.bind(_this);
        _this.scrollTop = _this.scrollTop.bind(_this);
        _this.scrollToLeft = _this.scrollToLeft.bind(_this);
        _this.scrollToTop = _this.scrollToTop.bind(_this);
        _this.scrollToRight = _this.scrollToRight.bind(_this);
        _this.scrollToBottom = _this.scrollToBottom.bind(_this);

        _this.handleTrackMouseEnter = _this.handleTrackMouseEnter.bind(_this);
        _this.handleTrackMouseLeave = _this.handleTrackMouseLeave.bind(_this);
        _this.handleHorizontalTrackMouseDown = _this.handleHorizontalTrackMouseDown.bind(_this);
        _this.handleVerticalTrackMouseDown = _this.handleVerticalTrackMouseDown.bind(_this);
        _this.handleHorizontalThumbMouseDown = _this.handleHorizontalThumbMouseDown.bind(_this);
        _this.handleVerticalThumbMouseDown = _this.handleVerticalThumbMouseDown.bind(_this);
        _this.handleWindowResize = _this.handleWindowResize.bind(_this);
        _this.handleScroll = _this.handleScroll.bind(_this);
        _this.handleDrag = _this.handleDrag.bind(_this);
        _this.handleDragEnd = _this.handleDragEnd.bind(_this);

        _this.state = {
            didMountUniversal: false
        };
        return _this;
    }

    _createClass(Scrollbars, [{
        key: 'componentDidMount',
        value: function componentDidMount() {
            this.addListeners();
            this.update();
            this.componentDidMountUniversal();
        }
    }, {
        key: 'componentDidMountUniversal',
        value: function componentDidMountUniversal() {
            // eslint-disable-line react/sort-comp
            var universal = this.props.universal;

            if (!universal) return;
            this.setState({ didMountUniversal: true });
        }
    }, {
        key: 'componentDidUpdate',
        value: function componentDidUpdate() {
            this.update();
        }
    }, {
        key: 'componentWillUnmount',
        value: function componentWillUnmount() {
            this.removeListeners();
            (0, _raf2.cancel)(this.requestFrame);
            clearTimeout(this.hideTracksTimeout);
            clearInterval(this.detectScrollingInterval);
        }
    }, {
        key: 'getScrollLeft',
        value: function getScrollLeft() {
            if (!this.view) return 0;
            return this.view.scrollLeft;
        }
    }, {
        key: 'getScrollTop',
        value: function getScrollTop() {
            if (!this.view) return 0;
            return this.view.scrollTop;
        }
    }, {
        key: 'getScrollWidth',
        value: function getScrollWidth() {
            if (!this.view) return 0;
            return this.view.scrollWidth;
        }
    }, {
        key: 'getScrollHeight',
        value: function getScrollHeight() {
            if (!this.view) return 0;
            return this.view.scrollHeight;
        }
    }, {
        key: 'getClientWidth',
        value: function getClientWidth() {
            if (!this.view) return 0;
            return this.view.clientWidth;
        }
    }, {
        key: 'getClientHeight',
        value: function getClientHeight() {
            if (!this.view) return 0;
            return this.view.clientHeight;
        }
    }, {
        key: 'getValues',
        value: function getValues() {
            var _ref2 = this.view || {},
                _ref2$scrollLeft = _ref2.scrollLeft,
                scrollLeft = _ref2$scrollLeft === undefined ? 0 : _ref2$scrollLeft,
                _ref2$scrollTop = _ref2.scrollTop,
                scrollTop = _ref2$scrollTop === undefined ? 0 : _ref2$scrollTop,
                _ref2$scrollWidth = _ref2.scrollWidth,
                scrollWidth = _ref2$scrollWidth === undefined ? 0 : _ref2$scrollWidth,
                _ref2$scrollHeight = _ref2.scrollHeight,
                scrollHeight = _ref2$scrollHeight === undefined ? 0 : _ref2$scrollHeight,
                _ref2$clientWidth = _ref2.clientWidth,
                clientWidth = _ref2$clientWidth === undefined ? 0 : _ref2$clientWidth,
                _ref2$clientHeight = _ref2.clientHeight,
                clientHeight = _ref2$clientHeight === undefined ? 0 : _ref2$clientHeight;

            return {
                left: scrollLeft / (scrollWidth - clientWidth) || 0,
                top: scrollTop / (scrollHeight - clientHeight) || 0,
                scrollLeft: scrollLeft,
                scrollTop: scrollTop,
                scrollWidth: scrollWidth,
                scrollHeight: scrollHeight,
                clientWidth: clientWidth,
                clientHeight: clientHeight
            };
        }
    }, {
        key: 'getThumbHorizontalWidth',
        value: function getThumbHorizontalWidth() {
            var _props = this.props,
                thumbSize = _props.thumbSize,
                thumbMinSize = _props.thumbMinSize;
            var _view = this.view,
                scrollWidth = _view.scrollWidth,
                clientWidth = _view.clientWidth;

            var trackWidth = (0, _getInnerWidth2["default"])(this.trackHorizontal);
            var width = Math.ceil(clientWidth / scrollWidth * trackWidth);
            if (trackWidth === width) return 0;
            if (thumbSize) return thumbSize;
            return Math.max(width, thumbMinSize);
        }
    }, {
        key: 'getThumbVerticalHeight',
        value: function getThumbVerticalHeight() {
            var _props2 = this.props,
                thumbSize = _props2.thumbSize,
                thumbMinSize = _props2.thumbMinSize;
            var _view2 = this.view,
                scrollHeight = _view2.scrollHeight,
                clientHeight = _view2.clientHeight;

            var trackHeight = (0, _getInnerHeight2["default"])(this.trackVertical);
            var height = Math.ceil(clientHeight / scrollHeight * trackHeight);
            if (trackHeight === height) return 0;
            if (thumbSize) return thumbSize;
            return Math.max(height, thumbMinSize);
        }
    }, {
        key: 'getScrollLeftForOffset',
        value: function getScrollLeftForOffset(offset) {
            var _view3 = this.view,
                scrollWidth = _view3.scrollWidth,
                clientWidth = _view3.clientWidth;

            var trackWidth = (0, _getInnerWidth2["default"])(this.trackHorizontal);
            var thumbWidth = this.getThumbHorizontalWidth();
            return offset / (trackWidth - thumbWidth) * (scrollWidth - clientWidth);
        }
    }, {
        key: 'getScrollTopForOffset',
        value: function getScrollTopForOffset(offset) {
            var _view4 = this.view,
                scrollHeight = _view4.scrollHeight,
                clientHeight = _view4.clientHeight;

            var trackHeight = (0, _getInnerHeight2["default"])(this.trackVertical);
            var thumbHeight = this.getThumbVerticalHeight();
            return offset / (trackHeight - thumbHeight) * (scrollHeight - clientHeight);
        }
    }, {
        key: 'scrollLeft',
        value: function scrollLeft() {
            var left = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 0;

            if (!this.view) return;
            this.view.scrollLeft = left;
        }
    }, {
        key: 'scrollTop',
        value: function scrollTop() {
            var top = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 0;

            if (!this.view) return;
            this.view.scrollTop = top;
        }
    }, {
        key: 'scrollToLeft',
        value: function scrollToLeft() {
            if (!this.view) return;
            this.view.scrollLeft = 0;
        }
    }, {
        key: 'scrollToTop',
        value: function scrollToTop() {
            if (!this.view) return;
            this.view.scrollTop = 0;
        }
    }, {
        key: 'scrollToRight',
        value: function scrollToRight() {
            if (!this.view) return;
            this.view.scrollLeft = this.view.scrollWidth;
        }
    }, {
        key: 'scrollToBottom',
        value: function scrollToBottom() {
            if (!this.view) return;
            this.view.scrollTop = this.view.scrollHeight;
        }
    }, {
        key: 'addListeners',
        value: function addListeners() {
            /* istanbul ignore if */
            if (typeof document === 'undefined' || !this.view) return;
            var view = this.view,
                trackHorizontal = this.trackHorizontal,
                trackVertical = this.trackVertical,
                thumbHorizontal = this.thumbHorizontal,
                thumbVertical = this.thumbVertical;

            view.addEventListener('scroll', this.handleScroll);
            if (!(0, _getScrollbarWidth2["default"])()) return;
            trackHorizontal.addEventListener('mouseenter', this.handleTrackMouseEnter);
            trackHorizontal.addEventListener('mouseleave', this.handleTrackMouseLeave);
            trackHorizontal.addEventListener('mousedown', this.handleHorizontalTrackMouseDown);
            trackVertical.addEventListener('mouseenter', this.handleTrackMouseEnter);
            trackVertical.addEventListener('mouseleave', this.handleTrackMouseLeave);
            trackVertical.addEventListener('mousedown', this.handleVerticalTrackMouseDown);
            thumbHorizontal.addEventListener('mousedown', this.handleHorizontalThumbMouseDown);
            thumbVertical.addEventListener('mousedown', this.handleVerticalThumbMouseDown);
            window.addEventListener('resize', this.handleWindowResize);
        }
    }, {
        key: 'removeListeners',
        value: function removeListeners() {
            /* istanbul ignore if */
            if (typeof document === 'undefined' || !this.view) return;
            var view = this.view,
                trackHorizontal = this.trackHorizontal,
                trackVertical = this.trackVertical,
                thumbHorizontal = this.thumbHorizontal,
                thumbVertical = this.thumbVertical;

            view.removeEventListener('scroll', this.handleScroll);
            if (!(0, _getScrollbarWidth2["default"])()) return;
            trackHorizontal.removeEventListener('mouseenter', this.handleTrackMouseEnter);
            trackHorizontal.removeEventListener('mouseleave', this.handleTrackMouseLeave);
            trackHorizontal.removeEventListener('mousedown', this.handleHorizontalTrackMouseDown);
            trackVertical.removeEventListener('mouseenter', this.handleTrackMouseEnter);
            trackVertical.removeEventListener('mouseleave', this.handleTrackMouseLeave);
            trackVertical.removeEventListener('mousedown', this.handleVerticalTrackMouseDown);
            thumbHorizontal.removeEventListener('mousedown', this.handleHorizontalThumbMouseDown);
            thumbVertical.removeEventListener('mousedown', this.handleVerticalThumbMouseDown);
            window.removeEventListener('resize', this.handleWindowResize);
            // Possibly setup by `handleDragStart`
            this.teardownDragging();
        }
    }, {
        key: 'handleScroll',
        value: function handleScroll(event) {
            var _this2 = this;

            var _props3 = this.props,
                onScroll = _props3.onScroll,
                onScrollFrame = _props3.onScrollFrame;

            if (onScroll) onScroll(event);
            this.update(function (values) {
                var scrollLeft = values.scrollLeft,
                    scrollTop = values.scrollTop;

                _this2.viewScrollLeft = scrollLeft;
                _this2.viewScrollTop = scrollTop;
                if (onScrollFrame) onScrollFrame(values);
            });
            this.detectScrolling();
        }
    }, {
        key: 'handleScrollStart',
        value: function handleScrollStart() {
            var onScrollStart = this.props.onScrollStart;

            if (onScrollStart) onScrollStart();
            this.handleScrollStartAutoHide();
        }
    }, {
        key: 'handleScrollStartAutoHide',
        value: function handleScrollStartAutoHide() {
            var autoHide = this.props.autoHide;

            if (!autoHide) return;
            this.showTracks();
        }
    }, {
        key: 'handleScrollStop',
        value: function handleScrollStop() {
            var onScrollStop = this.props.onScrollStop;

            if (onScrollStop) onScrollStop();
            this.handleScrollStopAutoHide();
        }
    }, {
        key: 'handleScrollStopAutoHide',
        value: function handleScrollStopAutoHide() {
            var autoHide = this.props.autoHide;

            if (!autoHide) return;
            this.hideTracks();
        }
    }, {
        key: 'handleWindowResize',
        value: function handleWindowResize() {
            this.update();
        }
    }, {
        key: 'handleHorizontalTrackMouseDown',
        value: function handleHorizontalTrackMouseDown(event) {
            event.preventDefault();
            var target = event.target,
                clientX = event.clientX;

            var _target$getBoundingCl = target.getBoundingClientRect(),
                targetLeft = _target$getBoundingCl.left;

            var thumbWidth = this.getThumbHorizontalWidth();
            var offset = Math.abs(targetLeft - clientX) - thumbWidth / 2;
            this.view.scrollLeft = this.getScrollLeftForOffset(offset);
        }
    }, {
        key: 'handleVerticalTrackMouseDown',
        value: function handleVerticalTrackMouseDown(event) {
            event.preventDefault();
            var target = event.target,
                clientY = event.clientY;

            var _target$getBoundingCl2 = target.getBoundingClientRect(),
                targetTop = _target$getBoundingCl2.top;

            var thumbHeight = this.getThumbVerticalHeight();
            var offset = Math.abs(targetTop - clientY) - thumbHeight / 2;
            this.view.scrollTop = this.getScrollTopForOffset(offset);
        }
    }, {
        key: 'handleHorizontalThumbMouseDown',
        value: function handleHorizontalThumbMouseDown(event) {
            event.preventDefault();
            this.handleDragStart(event);
            var target = event.target,
                clientX = event.clientX;
            var offsetWidth = target.offsetWidth;

            var _target$getBoundingCl3 = target.getBoundingClientRect(),
                left = _target$getBoundingCl3.left;

            this.prevPageX = offsetWidth - (clientX - left);
        }
    }, {
        key: 'handleVerticalThumbMouseDown',
        value: function handleVerticalThumbMouseDown(event) {
            event.preventDefault();
            this.handleDragStart(event);
            var target = event.target,
                clientY = event.clientY;
            var offsetHeight = target.offsetHeight;

            var _target$getBoundingCl4 = target.getBoundingClientRect(),
                top = _target$getBoundingCl4.top;

            this.prevPageY = offsetHeight - (clientY - top);
        }
    }, {
        key: 'setupDragging',
        value: function setupDragging() {
            (0, _domCss2["default"])(document.body, _styles.disableSelectStyle);
            document.addEventListener('mousemove', this.handleDrag);
            document.addEventListener('mouseup', this.handleDragEnd);
            document.onselectstart = _returnFalse2["default"];
        }
    }, {
        key: 'teardownDragging',
        value: function teardownDragging() {
            (0, _domCss2["default"])(document.body, _styles.disableSelectStyleReset);
            document.removeEventListener('mousemove', this.handleDrag);
            document.removeEventListener('mouseup', this.handleDragEnd);
            document.onselectstart = undefined;
        }
    }, {
        key: 'handleDragStart',
        value: function handleDragStart(event) {
            this.dragging = true;
            event.stopImmediatePropagation();
            this.setupDragging();
        }
    }, {
        key: 'handleDrag',
        value: function handleDrag(event) {
            if (this.prevPageX) {
                var clientX = event.clientX;

                var _trackHorizontal$getB = this.trackHorizontal.getBoundingClientRect(),
                    trackLeft = _trackHorizontal$getB.left;

                var thumbWidth = this.getThumbHorizontalWidth();
                var clickPosition = thumbWidth - this.prevPageX;
                var offset = -trackLeft + clientX - clickPosition;
                this.view.scrollLeft = this.getScrollLeftForOffset(offset);
            }
            if (this.prevPageY) {
                var clientY = event.clientY;

                var _trackVertical$getBou = this.trackVertical.getBoundingClientRect(),
                    trackTop = _trackVertical$getBou.top;

                var thumbHeight = this.getThumbVerticalHeight();
                var _clickPosition = thumbHeight - this.prevPageY;
                var _offset = -trackTop + clientY - _clickPosition;
                this.view.scrollTop = this.getScrollTopForOffset(_offset);
            }
            return false;
        }
    }, {
        key: 'handleDragEnd',
        value: function handleDragEnd() {
            this.dragging = false;
            this.prevPageX = this.prevPageY = 0;
            this.teardownDragging();
            this.handleDragEndAutoHide();
        }
    }, {
        key: 'handleDragEndAutoHide',
        value: function handleDragEndAutoHide() {
            var autoHide = this.props.autoHide;

            if (!autoHide) return;
            this.hideTracks();
        }
    }, {
        key: 'handleTrackMouseEnter',
        value: function handleTrackMouseEnter() {
            this.trackMouseOver = true;
            this.handleTrackMouseEnterAutoHide();
        }
    }, {
        key: 'handleTrackMouseEnterAutoHide',
        value: function handleTrackMouseEnterAutoHide() {
            var autoHide = this.props.autoHide;

            if (!autoHide) return;
            this.showTracks();
        }
    }, {
        key: 'handleTrackMouseLeave',
        value: function handleTrackMouseLeave() {
            this.trackMouseOver = false;
            this.handleTrackMouseLeaveAutoHide();
        }
    }, {
        key: 'handleTrackMouseLeaveAutoHide',
        value: function handleTrackMouseLeaveAutoHide() {
            var autoHide = this.props.autoHide;

            if (!autoHide) return;
            this.hideTracks();
        }
    }, {
        key: 'showTracks',
        value: function showTracks() {
            clearTimeout(this.hideTracksTimeout);
            (0, _domCss2["default"])(this.trackHorizontal, { opacity: 1 });
            (0, _domCss2["default"])(this.trackVertical, { opacity: 1 });
        }
    }, {
        key: 'hideTracks',
        value: function hideTracks() {
            var _this3 = this;

            if (this.dragging) return;
            if (this.scrolling) return;
            if (this.trackMouseOver) return;
            var autoHideTimeout = this.props.autoHideTimeout;

            clearTimeout(this.hideTracksTimeout);
            this.hideTracksTimeout = setTimeout(function () {
                (0, _domCss2["default"])(_this3.trackHorizontal, { opacity: 0 });
                (0, _domCss2["default"])(_this3.trackVertical, { opacity: 0 });
            }, autoHideTimeout);
        }
    }, {
        key: 'detectScrolling',
        value: function detectScrolling() {
            var _this4 = this;

            if (this.scrolling) return;
            this.scrolling = true;
            this.handleScrollStart();
            this.detectScrollingInterval = setInterval(function () {
                if (_this4.lastViewScrollLeft === _this4.viewScrollLeft && _this4.lastViewScrollTop === _this4.viewScrollTop) {
                    clearInterval(_this4.detectScrollingInterval);
                    _this4.scrolling = false;
                    _this4.handleScrollStop();
                }
                _this4.lastViewScrollLeft = _this4.viewScrollLeft;
                _this4.lastViewScrollTop = _this4.viewScrollTop;
            }, 100);
        }
    }, {
        key: 'raf',
        value: function raf(callback) {
            var _this5 = this;

            if (this.requestFrame) _raf3["default"].cancel(this.requestFrame);
            this.requestFrame = (0, _raf3["default"])(function () {
                _this5.requestFrame = undefined;
                callback();
            });
        }
    }, {
        key: 'update',
        value: function update(callback) {
            var _this6 = this;

            this.raf(function () {
                return _this6._update(callback);
            });
        }
    }, {
        key: '_update',
        value: function _update(callback) {
            var _props4 = this.props,
                onUpdate = _props4.onUpdate,
                hideTracksWhenNotNeeded = _props4.hideTracksWhenNotNeeded;

            var values = this.getValues();
            if ((0, _getScrollbarWidth2["default"])()) {
                var scrollLeft = values.scrollLeft,
                    clientWidth = values.clientWidth,
                    scrollWidth = values.scrollWidth;

                var trackHorizontalWidth = (0, _getInnerWidth2["default"])(this.trackHorizontal);
                var thumbHorizontalWidth = this.getThumbHorizontalWidth();
                var thumbHorizontalX = scrollLeft / (scrollWidth - clientWidth) * (trackHorizontalWidth - thumbHorizontalWidth);
                var thumbHorizontalStyle = {
                    width: thumbHorizontalWidth,
                    transform: 'translateX(' + thumbHorizontalX + 'px)'
                };
                var scrollTop = values.scrollTop,
                    clientHeight = values.clientHeight,
                    scrollHeight = values.scrollHeight;

                var trackVerticalHeight = (0, _getInnerHeight2["default"])(this.trackVertical);
                var thumbVerticalHeight = this.getThumbVerticalHeight();
                var thumbVerticalY = scrollTop / (scrollHeight - clientHeight) * (trackVerticalHeight - thumbVerticalHeight);
                var thumbVerticalStyle = {
                    height: thumbVerticalHeight,
                    transform: 'translateY(' + thumbVerticalY + 'px)'
                };
                if (hideTracksWhenNotNeeded) {
                    var trackHorizontalStyle = {
                        visibility: scrollWidth > clientWidth ? 'visible' : 'hidden'
                    };
                    var trackVerticalStyle = {
                        visibility: scrollHeight > clientHeight ? 'visible' : 'hidden'
                    };
                    (0, _domCss2["default"])(this.trackHorizontal, trackHorizontalStyle);
                    (0, _domCss2["default"])(this.trackVertical, trackVerticalStyle);
                }
                (0, _domCss2["default"])(this.thumbHorizontal, thumbHorizontalStyle);
                (0, _domCss2["default"])(this.thumbVertical, thumbVerticalStyle);
            }
            if (onUpdate) onUpdate(values);
            if (typeof callback !== 'function') return;
            callback(values);
        }
    }, {
        key: 'render',
        value: function render() {
            var _this7 = this;

            var scrollbarWidth = (0, _getScrollbarWidth2["default"])();
            /* eslint-disable no-unused-vars */

            var _props5 = this.props,
                onScroll = _props5.onScroll,
                onScrollFrame = _props5.onScrollFrame,
                onScrollStart = _props5.onScrollStart,
                onScrollStop = _props5.onScrollStop,
                onUpdate = _props5.onUpdate,
                renderView = _props5.renderView,
                renderTrackHorizontal = _props5.renderTrackHorizontal,
                renderTrackVertical = _props5.renderTrackVertical,
                renderThumbHorizontal = _props5.renderThumbHorizontal,
                renderThumbVertical = _props5.renderThumbVertical,
                tagName = _props5.tagName,
                hideTracksWhenNotNeeded = _props5.hideTracksWhenNotNeeded,
                autoHide = _props5.autoHide,
                autoHideTimeout = _props5.autoHideTimeout,
                autoHideDuration = _props5.autoHideDuration,
                thumbSize = _props5.thumbSize,
                thumbMinSize = _props5.thumbMinSize,
                universal = _props5.universal,
                autoHeight = _props5.autoHeight,
                autoHeightMin = _props5.autoHeightMin,
                autoHeightMax = _props5.autoHeightMax,
                style = _props5.style,
                children = _props5.children,
                props = _objectWithoutProperties(_props5, ['onScroll', 'onScrollFrame', 'onScrollStart', 'onScrollStop', 'onUpdate', 'renderView', 'renderTrackHorizontal', 'renderTrackVertical', 'renderThumbHorizontal', 'renderThumbVertical', 'tagName', 'hideTracksWhenNotNeeded', 'autoHide', 'autoHideTimeout', 'autoHideDuration', 'thumbSize', 'thumbMinSize', 'universal', 'autoHeight', 'autoHeightMin', 'autoHeightMax', 'style', 'children']);
            /* eslint-enable no-unused-vars */

            var didMountUniversal = this.state.didMountUniversal;


            var containerStyle = _extends({}, _styles.containerStyleDefault, autoHeight && _extends({}, _styles.containerStyleAutoHeight, {
                minHeight: autoHeightMin,
                maxHeight: autoHeightMax
            }), style);

            var viewStyle = _extends({}, _styles.viewStyleDefault, {
                // Hide scrollbars by setting a negative margin
                marginRight: scrollbarWidth ? -scrollbarWidth : 0,
                marginBottom: scrollbarWidth ? -scrollbarWidth : 0
            }, autoHeight && _extends({}, _styles.viewStyleAutoHeight, {
                // Add scrollbarWidth to autoHeight in order to compensate negative margins
                minHeight: (0, _isString2["default"])(autoHeightMin) ? 'calc(' + autoHeightMin + ' + ' + scrollbarWidth + 'px)' : autoHeightMin + scrollbarWidth,
                maxHeight: (0, _isString2["default"])(autoHeightMax) ? 'calc(' + autoHeightMax + ' + ' + scrollbarWidth + 'px)' : autoHeightMax + scrollbarWidth
            }), autoHeight && universal && !didMountUniversal && {
                minHeight: autoHeightMin,
                maxHeight: autoHeightMax
            }, universal && !didMountUniversal && _styles.viewStyleUniversalInitial);

            var trackAutoHeightStyle = {
                transition: 'opacity ' + autoHideDuration + 'ms',
                opacity: 0
            };

            var trackHorizontalStyle = _extends({}, _styles.trackHorizontalStyleDefault, autoHide && trackAutoHeightStyle, (!scrollbarWidth || universal && !didMountUniversal) && {
                display: 'none'
            });

            var trackVerticalStyle = _extends({}, _styles.trackVerticalStyleDefault, autoHide && trackAutoHeightStyle, (!scrollbarWidth || universal && !didMountUniversal) && {
                display: 'none'
            });

            return (0, _react.createElement)(tagName, _extends({}, props, { style: containerStyle, ref: function ref(_ref3) {
                    _this7.container = _ref3;
                } }), [(0, _react.cloneElement)(renderView({ style: viewStyle }), { key: 'view', ref: function ref(_ref4) {
                    _this7.view = _ref4;
                } }, children), (0, _react.cloneElement)(renderTrackHorizontal({ style: trackHorizontalStyle }), { key: 'trackHorizontal', ref: function ref(_ref5) {
                    _this7.trackHorizontal = _ref5;
                } }, (0, _react.cloneElement)(renderThumbHorizontal({ style: _styles.thumbHorizontalStyleDefault }), { ref: function ref(_ref6) {
                    _this7.thumbHorizontal = _ref6;
                } })), (0, _react.cloneElement)(renderTrackVertical({ style: trackVerticalStyle }), { key: 'trackVertical', ref: function ref(_ref7) {
                    _this7.trackVertical = _ref7;
                } }, (0, _react.cloneElement)(renderThumbVertical({ style: _styles.thumbVerticalStyleDefault }), { ref: function ref(_ref8) {
                    _this7.thumbVertical = _ref8;
                } }))]);
        }
    }]);

    return Scrollbars;
}(_react.Component);

exports["default"] = Scrollbars;


Scrollbars.propTypes = {
    onScroll: _propTypes2["default"].func,
    onScrollFrame: _propTypes2["default"].func,
    onScrollStart: _propTypes2["default"].func,
    onScrollStop: _propTypes2["default"].func,
    onUpdate: _propTypes2["default"].func,
    renderView: _propTypes2["default"].func,
    renderTrackHorizontal: _propTypes2["default"].func,
    renderTrackVertical: _propTypes2["default"].func,
    renderThumbHorizontal: _propTypes2["default"].func,
    renderThumbVertical: _propTypes2["default"].func,
    tagName: _propTypes2["default"].string,
    thumbSize: _propTypes2["default"].number,
    thumbMinSize: _propTypes2["default"].number,
    hideTracksWhenNotNeeded: _propTypes2["default"].bool,
    autoHide: _propTypes2["default"].bool,
    autoHideTimeout: _propTypes2["default"].number,
    autoHideDuration: _propTypes2["default"].number,
    autoHeight: _propTypes2["default"].bool,
    autoHeightMin: _propTypes2["default"].oneOfType([_propTypes2["default"].number, _propTypes2["default"].string]),
    autoHeightMax: _propTypes2["default"].oneOfType([_propTypes2["default"].number, _propTypes2["default"].string]),
    universal: _propTypes2["default"].bool,
    style: _propTypes2["default"].object,
    children: _propTypes2["default"].node
};

Scrollbars.defaultProps = {
    renderView: _defaultRenderElements.renderViewDefault,
    renderTrackHorizontal: _defaultRenderElements.renderTrackHorizontalDefault,
    renderTrackVertical: _defaultRenderElements.renderTrackVerticalDefault,
    renderThumbHorizontal: _defaultRenderElements.renderThumbHorizontalDefault,
    renderThumbVertical: _defaultRenderElements.renderThumbVerticalDefault,
    tagName: 'div',
    thumbMinSize: 30,
    hideTracksWhenNotNeeded: false,
    autoHide: false,
    autoHideTimeout: 1000,
    autoHideDuration: 200,
    autoHeight: false,
    autoHeightMin: 0,
    autoHeightMax: 200,
    universal: false
};
},{"../utils/getInnerHeight":35,"../utils/getInnerWidth":36,"../utils/getScrollbarWidth":37,"../utils/isString":38,"../utils/returnFalse":39,"./defaultRenderElements":31,"./styles":33,"dom-css":11,"prop-types":28,"raf":30,"react":73}],33:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
    value: true
});
var containerStyleDefault = exports.containerStyleDefault = {
    position: 'relative',
    overflow: 'hidden',
    width: '100%',
    height: '100%'
};

// Overrides containerStyleDefault properties
var containerStyleAutoHeight = exports.containerStyleAutoHeight = {
    height: 'auto'
};

var viewStyleDefault = exports.viewStyleDefault = {
    position: 'absolute',
    top: 0,
    left: 0,
    right: 0,
    bottom: 0,
    overflow: 'scroll',
    WebkitOverflowScrolling: 'touch'
};

// Overrides viewStyleDefault properties
var viewStyleAutoHeight = exports.viewStyleAutoHeight = {
    position: 'relative',
    top: undefined,
    left: undefined,
    right: undefined,
    bottom: undefined
};

var viewStyleUniversalInitial = exports.viewStyleUniversalInitial = {
    overflow: 'hidden',
    marginRight: 0,
    marginBottom: 0
};

var trackHorizontalStyleDefault = exports.trackHorizontalStyleDefault = {
    position: 'absolute',
    height: 6
};

var trackVerticalStyleDefault = exports.trackVerticalStyleDefault = {
    position: 'absolute',
    width: 6
};

var thumbHorizontalStyleDefault = exports.thumbHorizontalStyleDefault = {
    position: 'relative',
    display: 'block',
    height: '100%'
};

var thumbVerticalStyleDefault = exports.thumbVerticalStyleDefault = {
    position: 'relative',
    display: 'block',
    width: '100%'
};

var disableSelectStyle = exports.disableSelectStyle = {
    userSelect: 'none'
};

var disableSelectStyleReset = exports.disableSelectStyleReset = {
    userSelect: ''
};
},{}],34:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.Scrollbars = undefined;

var _Scrollbars = require('./Scrollbars');

var _Scrollbars2 = _interopRequireDefault(_Scrollbars);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

exports["default"] = _Scrollbars2["default"];
exports.Scrollbars = _Scrollbars2["default"];
},{"./Scrollbars":32}],35:[function(require,module,exports){
"use strict";

Object.defineProperty(exports, "__esModule", {
    value: true
});
exports["default"] = getInnerHeight;
function getInnerHeight(el) {
    var clientHeight = el.clientHeight;

    var _getComputedStyle = getComputedStyle(el),
        paddingTop = _getComputedStyle.paddingTop,
        paddingBottom = _getComputedStyle.paddingBottom;

    return clientHeight - parseFloat(paddingTop) - parseFloat(paddingBottom);
}
},{}],36:[function(require,module,exports){
"use strict";

Object.defineProperty(exports, "__esModule", {
    value: true
});
exports["default"] = getInnerWidth;
function getInnerWidth(el) {
    var clientWidth = el.clientWidth;

    var _getComputedStyle = getComputedStyle(el),
        paddingLeft = _getComputedStyle.paddingLeft,
        paddingRight = _getComputedStyle.paddingRight;

    return clientWidth - parseFloat(paddingLeft) - parseFloat(paddingRight);
}
},{}],37:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
    value: true
});
exports["default"] = getScrollbarWidth;

var _domCss = require('dom-css');

var _domCss2 = _interopRequireDefault(_domCss);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

var scrollbarWidth = false;

function getScrollbarWidth() {
    if (scrollbarWidth !== false) return scrollbarWidth;
    /* istanbul ignore else */
    if (typeof document !== 'undefined') {
        var div = document.createElement('div');
        (0, _domCss2["default"])(div, {
            width: 100,
            height: 100,
            position: 'absolute',
            top: -9999,
            overflow: 'scroll',
            MsOverflowStyle: 'scrollbar'
        });
        document.body.appendChild(div);
        scrollbarWidth = div.offsetWidth - div.clientWidth;
        document.body.removeChild(div);
    } else {
        scrollbarWidth = 0;
    }
    return scrollbarWidth || 0;
}
},{"dom-css":11}],38:[function(require,module,exports){
'use strict';

Object.defineProperty(exports, "__esModule", {
    value: true
});
exports["default"] = isString;
function isString(maybe) {
    return typeof maybe === 'string';
}
},{}],39:[function(require,module,exports){
"use strict";

Object.defineProperty(exports, "__esModule", {
    value: true
});
exports["default"] = returnFalse;
function returnFalse() {
    return false;
}
},{}],40:[function(require,module,exports){
(function (process){
/** @license React v16.9.0
 * react-dom.development.js
 *
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

'use strict';



if (process.env.NODE_ENV !== "production") {
  (function() {
'use strict';

var React = require('react');
var _assign = require('object-assign');
var checkPropTypes = require('prop-types/checkPropTypes');
var Scheduler = require('scheduler');
var tracing = require('scheduler/tracing');

// Do not require this module directly! Use normal `invariant` calls with
// template literal strings. The messages will be converted to ReactError during
// build, and in production they will be minified.

// Do not require this module directly! Use normal `invariant` calls with
// template literal strings. The messages will be converted to ReactError during
// build, and in production they will be minified.

function ReactError(error) {
  error.name = 'Invariant Violation';
  return error;
}

/**
 * Use invariant() to assert state which your program assumes to be true.
 *
 * Provide sprintf-style format (only %s is supported) and arguments
 * to provide information about what broke and what you were
 * expecting.
 *
 * The invariant message will be stripped in production, but the invariant
 * will remain to ensure logic does not differ in production.
 */

(function () {
  if (!React) {
    {
      throw ReactError(Error('ReactDOM was loaded before React. Make sure you load the React package before loading ReactDOM.'));
    }
  }
})();

/**
 * Injectable ordering of event plugins.
 */
var eventPluginOrder = null;

/**
 * Injectable mapping from names to event plugin modules.
 */
var namesToPlugins = {};

/**
 * Recomputes the plugin list using the injected plugins and plugin ordering.
 *
 * @private
 */
function recomputePluginOrdering() {
  if (!eventPluginOrder) {
    // Wait until an `eventPluginOrder` is injected.
    return;
  }
  for (var pluginName in namesToPlugins) {
    var pluginModule = namesToPlugins[pluginName];
    var pluginIndex = eventPluginOrder.indexOf(pluginName);
    (function () {
      if (!(pluginIndex > -1)) {
        {
          throw ReactError(Error('EventPluginRegistry: Cannot inject event plugins that do not exist in the plugin ordering, `' + pluginName + '`.'));
        }
      }
    })();
    if (plugins[pluginIndex]) {
      continue;
    }
    (function () {
      if (!pluginModule.extractEvents) {
        {
          throw ReactError(Error('EventPluginRegistry: Event plugins must implement an `extractEvents` method, but `' + pluginName + '` does not.'));
        }
      }
    })();
    plugins[pluginIndex] = pluginModule;
    var publishedEvents = pluginModule.eventTypes;
    for (var eventName in publishedEvents) {
      (function () {
        if (!publishEventForPlugin(publishedEvents[eventName], pluginModule, eventName)) {
          {
            throw ReactError(Error('EventPluginRegistry: Failed to publish event `' + eventName + '` for plugin `' + pluginName + '`.'));
          }
        }
      })();
    }
  }
}

/**
 * Publishes an event so that it can be dispatched by the supplied plugin.
 *
 * @param {object} dispatchConfig Dispatch configuration for the event.
 * @param {object} PluginModule Plugin publishing the event.
 * @return {boolean} True if the event was successfully published.
 * @private
 */
function publishEventForPlugin(dispatchConfig, pluginModule, eventName) {
  (function () {
    if (!!eventNameDispatchConfigs.hasOwnProperty(eventName)) {
      {
        throw ReactError(Error('EventPluginHub: More than one plugin attempted to publish the same event name, `' + eventName + '`.'));
      }
    }
  })();
  eventNameDispatchConfigs[eventName] = dispatchConfig;

  var phasedRegistrationNames = dispatchConfig.phasedRegistrationNames;
  if (phasedRegistrationNames) {
    for (var phaseName in phasedRegistrationNames) {
      if (phasedRegistrationNames.hasOwnProperty(phaseName)) {
        var phasedRegistrationName = phasedRegistrationNames[phaseName];
        publishRegistrationName(phasedRegistrationName, pluginModule, eventName);
      }
    }
    return true;
  } else if (dispatchConfig.registrationName) {
    publishRegistrationName(dispatchConfig.registrationName, pluginModule, eventName);
    return true;
  }
  return false;
}

/**
 * Publishes a registration name that is used to identify dispatched events.
 *
 * @param {string} registrationName Registration name to add.
 * @param {object} PluginModule Plugin publishing the event.
 * @private
 */
function publishRegistrationName(registrationName, pluginModule, eventName) {
  (function () {
    if (!!registrationNameModules[registrationName]) {
      {
        throw ReactError(Error('EventPluginHub: More than one plugin attempted to publish the same registration name, `' + registrationName + '`.'));
      }
    }
  })();
  registrationNameModules[registrationName] = pluginModule;
  registrationNameDependencies[registrationName] = pluginModule.eventTypes[eventName].dependencies;

  {
    var lowerCasedName = registrationName.toLowerCase();
    possibleRegistrationNames[lowerCasedName] = registrationName;

    if (registrationName === 'onDoubleClick') {
      possibleRegistrationNames.ondblclick = registrationName;
    }
  }
}

/**
 * Registers plugins so that they can extract and dispatch events.
 *
 * @see {EventPluginHub}
 */

/**
 * Ordered list of injected plugins.
 */
var plugins = [];

/**
 * Mapping from event name to dispatch config
 */
var eventNameDispatchConfigs = {};

/**
 * Mapping from registration name to plugin module
 */
var registrationNameModules = {};

/**
 * Mapping from registration name to event name
 */
var registrationNameDependencies = {};

/**
 * Mapping from lowercase registration names to the properly cased version,
 * used to warn in the case of missing event handlers. Available
 * only in true.
 * @type {Object}
 */
var possibleRegistrationNames = {};
// Trust the developer to only use possibleRegistrationNames in true

/**
 * Injects an ordering of plugins (by plugin name). This allows the ordering
 * to be decoupled from injection of the actual plugins so that ordering is
 * always deterministic regardless of packaging, on-the-fly injection, etc.
 *
 * @param {array} InjectedEventPluginOrder
 * @internal
 * @see {EventPluginHub.injection.injectEventPluginOrder}
 */
function injectEventPluginOrder(injectedEventPluginOrder) {
  (function () {
    if (!!eventPluginOrder) {
      {
        throw ReactError(Error('EventPluginRegistry: Cannot inject event plugin ordering more than once. You are likely trying to load more than one copy of React.'));
      }
    }
  })();
  // Clone the ordering so it cannot be dynamically mutated.
  eventPluginOrder = Array.prototype.slice.call(injectedEventPluginOrder);
  recomputePluginOrdering();
}

/**
 * Injects plugins to be used by `EventPluginHub`. The plugin names must be
 * in the ordering injected by `injectEventPluginOrder`.
 *
 * Plugins can be injected as part of page initialization or on-the-fly.
 *
 * @param {object} injectedNamesToPlugins Map from names to plugin modules.
 * @internal
 * @see {EventPluginHub.injection.injectEventPluginsByName}
 */
function injectEventPluginsByName(injectedNamesToPlugins) {
  var isOrderingDirty = false;
  for (var pluginName in injectedNamesToPlugins) {
    if (!injectedNamesToPlugins.hasOwnProperty(pluginName)) {
      continue;
    }
    var pluginModule = injectedNamesToPlugins[pluginName];
    if (!namesToPlugins.hasOwnProperty(pluginName) || namesToPlugins[pluginName] !== pluginModule) {
      (function () {
        if (!!namesToPlugins[pluginName]) {
          {
            throw ReactError(Error('EventPluginRegistry: Cannot inject two different event plugins using the same name, `' + pluginName + '`.'));
          }
        }
      })();
      namesToPlugins[pluginName] = pluginModule;
      isOrderingDirty = true;
    }
  }
  if (isOrderingDirty) {
    recomputePluginOrdering();
  }
}

var invokeGuardedCallbackImpl = function (name, func, context, a, b, c, d, e, f) {
  var funcArgs = Array.prototype.slice.call(arguments, 3);
  try {
    func.apply(context, funcArgs);
  } catch (error) {
    this.onError(error);
  }
};

{
  // In DEV mode, we swap out invokeGuardedCallback for a special version
  // that plays more nicely with the browser's DevTools. The idea is to preserve
  // "Pause on exceptions" behavior. Because React wraps all user-provided
  // functions in invokeGuardedCallback, and the production version of
  // invokeGuardedCallback uses a try-catch, all user exceptions are treated
  // like caught exceptions, and the DevTools won't pause unless the developer
  // takes the extra step of enabling pause on caught exceptions. This is
  // unintuitive, though, because even though React has caught the error, from
  // the developer's perspective, the error is uncaught.
  //
  // To preserve the expected "Pause on exceptions" behavior, we don't use a
  // try-catch in DEV. Instead, we synchronously dispatch a fake event to a fake
  // DOM node, and call the user-provided callback from inside an event handler
  // for that fake event. If the callback throws, the error is "captured" using
  // a global event handler. But because the error happens in a different
  // event loop context, it does not interrupt the normal program flow.
  // Effectively, this gives us try-catch behavior without actually using
  // try-catch. Neat!

  // Check that the browser supports the APIs we need to implement our special
  // DEV version of invokeGuardedCallback
  if (typeof window !== 'undefined' && typeof window.dispatchEvent === 'function' && typeof document !== 'undefined' && typeof document.createEvent === 'function') {
    var fakeNode = document.createElement('react');

    var invokeGuardedCallbackDev = function (name, func, context, a, b, c, d, e, f) {
      // If document doesn't exist we know for sure we will crash in this method
      // when we call document.createEvent(). However this can cause confusing
      // errors: https://github.com/facebookincubator/create-react-app/issues/3482
      // So we preemptively throw with a better message instead.
      (function () {
        if (!(typeof document !== 'undefined')) {
          {
            throw ReactError(Error('The `document` global was defined when React was initialized, but is not defined anymore. This can happen in a test environment if a component schedules an update from an asynchronous callback, but the test has already finished running. To solve this, you can either unmount the component at the end of your test (and ensure that any asynchronous operations get canceled in `componentWillUnmount`), or you can change the test itself to be asynchronous.'));
          }
        }
      })();
      var evt = document.createEvent('Event');

      // Keeps track of whether the user-provided callback threw an error. We
      // set this to true at the beginning, then set it to false right after
      // calling the function. If the function errors, `didError` will never be
      // set to false. This strategy works even if the browser is flaky and
      // fails to call our global error handler, because it doesn't rely on
      // the error event at all.
      var didError = true;

      // Keeps track of the value of window.event so that we can reset it
      // during the callback to let user code access window.event in the
      // browsers that support it.
      var windowEvent = window.event;

      // Keeps track of the descriptor of window.event to restore it after event
      // dispatching: https://github.com/facebook/react/issues/13688
      var windowEventDescriptor = Object.getOwnPropertyDescriptor(window, 'event');

      // Create an event handler for our fake event. We will synchronously
      // dispatch our fake event using `dispatchEvent`. Inside the handler, we
      // call the user-provided callback.
      var funcArgs = Array.prototype.slice.call(arguments, 3);
      function callCallback() {
        // We immediately remove the callback from event listeners so that
        // nested `invokeGuardedCallback` calls do not clash. Otherwise, a
        // nested call would trigger the fake event handlers of any call higher
        // in the stack.
        fakeNode.removeEventListener(evtType, callCallback, false);

        // We check for window.hasOwnProperty('event') to prevent the
        // window.event assignment in both IE <= 10 as they throw an error
        // "Member not found" in strict mode, and in Firefox which does not
        // support window.event.
        if (typeof window.event !== 'undefined' && window.hasOwnProperty('event')) {
          window.event = windowEvent;
        }

        func.apply(context, funcArgs);
        didError = false;
      }

      // Create a global error event handler. We use this to capture the value
      // that was thrown. It's possible that this error handler will fire more
      // than once; for example, if non-React code also calls `dispatchEvent`
      // and a handler for that event throws. We should be resilient to most of
      // those cases. Even if our error event handler fires more than once, the
      // last error event is always used. If the callback actually does error,
      // we know that the last error event is the correct one, because it's not
      // possible for anything else to have happened in between our callback
      // erroring and the code that follows the `dispatchEvent` call below. If
      // the callback doesn't error, but the error event was fired, we know to
      // ignore it because `didError` will be false, as described above.
      var error = void 0;
      // Use this to track whether the error event is ever called.
      var didSetError = false;
      var isCrossOriginError = false;

      function handleWindowError(event) {
        error = event.error;
        didSetError = true;
        if (error === null && event.colno === 0 && event.lineno === 0) {
          isCrossOriginError = true;
        }
        if (event.defaultPrevented) {
          // Some other error handler has prevented default.
          // Browsers silence the error report if this happens.
          // We'll remember this to later decide whether to log it or not.
          if (error != null && typeof error === 'object') {
            try {
              error._suppressLogging = true;
            } catch (inner) {
              // Ignore.
            }
          }
        }
      }

      // Create a fake event type.
      var evtType = 'react-' + (name ? name : 'invokeguardedcallback');

      // Attach our event handlers
      window.addEventListener('error', handleWindowError);
      fakeNode.addEventListener(evtType, callCallback, false);

      // Synchronously dispatch our fake event. If the user-provided function
      // errors, it will trigger our global error handler.
      evt.initEvent(evtType, false, false);
      fakeNode.dispatchEvent(evt);

      if (windowEventDescriptor) {
        Object.defineProperty(window, 'event', windowEventDescriptor);
      }

      if (didError) {
        if (!didSetError) {
          // The callback errored, but the error event never fired.
          error = new Error('An error was thrown inside one of your components, but React ' + "doesn't know what it was. This is likely due to browser " + 'flakiness. React does its best to preserve the "Pause on ' + 'exceptions" behavior of the DevTools, which requires some ' + "DEV-mode only tricks. It's possible that these don't work in " + 'your browser. Try triggering the error in production mode, ' + 'or switching to a modern browser. If you suspect that this is ' + 'actually an issue with React, please file an issue.');
        } else if (isCrossOriginError) {
          error = new Error("A cross-origin error was thrown. React doesn't have access to " + 'the actual error object in development. ' + 'See https://fb.me/react-crossorigin-error for more information.');
        }
        this.onError(error);
      }

      // Remove our event listeners
      window.removeEventListener('error', handleWindowError);
    };

    invokeGuardedCallbackImpl = invokeGuardedCallbackDev;
  }
}

var invokeGuardedCallbackImpl$1 = invokeGuardedCallbackImpl;

// Used by Fiber to simulate a try-catch.
var hasError = false;
var caughtError = null;

// Used by event system to capture/rethrow the first error.
var hasRethrowError = false;
var rethrowError = null;

var reporter = {
  onError: function (error) {
    hasError = true;
    caughtError = error;
  }
};

/**
 * Call a function while guarding against errors that happens within it.
 * Returns an error if it throws, otherwise null.
 *
 * In production, this is implemented using a try-catch. The reason we don't
 * use a try-catch directly is so that we can swap out a different
 * implementation in DEV mode.
 *
 * @param {String} name of the guard to use for logging or debugging
 * @param {Function} func The function to invoke
 * @param {*} context The context to use when calling the function
 * @param {...*} args Arguments for function
 */
function invokeGuardedCallback(name, func, context, a, b, c, d, e, f) {
  hasError = false;
  caughtError = null;
  invokeGuardedCallbackImpl$1.apply(reporter, arguments);
}

/**
 * Same as invokeGuardedCallback, but instead of returning an error, it stores
 * it in a global so it can be rethrown by `rethrowCaughtError` later.
 * TODO: See if caughtError and rethrowError can be unified.
 *
 * @param {String} name of the guard to use for logging or debugging
 * @param {Function} func The function to invoke
 * @param {*} context The context to use when calling the function
 * @param {...*} args Arguments for function
 */
function invokeGuardedCallbackAndCatchFirstError(name, func, context, a, b, c, d, e, f) {
  invokeGuardedCallback.apply(this, arguments);
  if (hasError) {
    var error = clearCaughtError();
    if (!hasRethrowError) {
      hasRethrowError = true;
      rethrowError = error;
    }
  }
}

/**
 * During execution of guarded functions we will capture the first error which
 * we will rethrow to be handled by the top level error handler.
 */
function rethrowCaughtError() {
  if (hasRethrowError) {
    var error = rethrowError;
    hasRethrowError = false;
    rethrowError = null;
    throw error;
  }
}

function hasCaughtError() {
  return hasError;
}

function clearCaughtError() {
  if (hasError) {
    var error = caughtError;
    hasError = false;
    caughtError = null;
    return error;
  } else {
    (function () {
      {
        {
          throw ReactError(Error('clearCaughtError was called but no error was captured. This error is likely caused by a bug in React. Please file an issue.'));
        }
      }
    })();
  }
}

/**
 * Similar to invariant but only logs a warning if the condition is not met.
 * This can be used to log issues in development environments in critical
 * paths. Removing the logging code for production environments will keep the
 * same logic and follow the same code paths.
 */

var warningWithoutStack = function () {};

{
  warningWithoutStack = function (condition, format) {
    for (var _len = arguments.length, args = Array(_len > 2 ? _len - 2 : 0), _key = 2; _key < _len; _key++) {
      args[_key - 2] = arguments[_key];
    }

    if (format === undefined) {
      throw new Error('`warningWithoutStack(condition, format, ...args)` requires a warning ' + 'message argument');
    }
    if (args.length > 8) {
      // Check before the condition to catch violations early.
      throw new Error('warningWithoutStack() currently supports at most 8 arguments.');
    }
    if (condition) {
      return;
    }
    if (typeof console !== 'undefined') {
      var argsWithFormat = args.map(function (item) {
        return '' + item;
      });
      argsWithFormat.unshift('Warning: ' + format);

      // We intentionally don't use spread (or .apply) directly because it
      // breaks IE9: https://github.com/facebook/react/issues/13610
      Function.prototype.apply.call(console.error, console, argsWithFormat);
    }
    try {
      // --- Welcome to debugging React ---
      // This error was thrown as a convenience so that you can use this stack
      // to find the callsite that caused this warning to fire.
      var argIndex = 0;
      var message = 'Warning: ' + format.replace(/%s/g, function () {
        return args[argIndex++];
      });
      throw new Error(message);
    } catch (x) {}
  };
}

var warningWithoutStack$1 = warningWithoutStack;

var getFiberCurrentPropsFromNode = null;
var getInstanceFromNode = null;
var getNodeFromInstance = null;

function setComponentTree(getFiberCurrentPropsFromNodeImpl, getInstanceFromNodeImpl, getNodeFromInstanceImpl) {
  getFiberCurrentPropsFromNode = getFiberCurrentPropsFromNodeImpl;
  getInstanceFromNode = getInstanceFromNodeImpl;
  getNodeFromInstance = getNodeFromInstanceImpl;
  {
    !(getNodeFromInstance && getInstanceFromNode) ? warningWithoutStack$1(false, 'EventPluginUtils.setComponentTree(...): Injected ' + 'module is missing getNodeFromInstance or getInstanceFromNode.') : void 0;
  }
}

var validateEventDispatches = void 0;
{
  validateEventDispatches = function (event) {
    var dispatchListeners = event._dispatchListeners;
    var dispatchInstances = event._dispatchInstances;

    var listenersIsArr = Array.isArray(dispatchListeners);
    var listenersLen = listenersIsArr ? dispatchListeners.length : dispatchListeners ? 1 : 0;

    var instancesIsArr = Array.isArray(dispatchInstances);
    var instancesLen = instancesIsArr ? dispatchInstances.length : dispatchInstances ? 1 : 0;

    !(instancesIsArr === listenersIsArr && instancesLen === listenersLen) ? warningWithoutStack$1(false, 'EventPluginUtils: Invalid `event`.') : void 0;
  };
}

/**
 * Dispatch the event to the listener.
 * @param {SyntheticEvent} event SyntheticEvent to handle
 * @param {function} listener Application-level callback
 * @param {*} inst Internal component instance
 */
function executeDispatch(event, listener, inst) {
  var type = event.type || 'unknown-event';
  event.currentTarget = getNodeFromInstance(inst);
  invokeGuardedCallbackAndCatchFirstError(type, listener, undefined, event);
  event.currentTarget = null;
}

/**
 * Standard/simple iteration through an event's collected dispatches.
 */
function executeDispatchesInOrder(event) {
  var dispatchListeners = event._dispatchListeners;
  var dispatchInstances = event._dispatchInstances;
  {
    validateEventDispatches(event);
  }
  if (Array.isArray(dispatchListeners)) {
    for (var i = 0; i < dispatchListeners.length; i++) {
      if (event.isPropagationStopped()) {
        break;
      }
      // Listeners and Instances are two parallel arrays that are always in sync.
      executeDispatch(event, dispatchListeners[i], dispatchInstances[i]);
    }
  } else if (dispatchListeners) {
    executeDispatch(event, dispatchListeners, dispatchInstances);
  }
  event._dispatchListeners = null;
  event._dispatchInstances = null;
}

/**
 * @see executeDispatchesInOrderStopAtTrueImpl
 */


/**
 * Execution of a "direct" dispatch - there must be at most one dispatch
 * accumulated on the event or it is considered an error. It doesn't really make
 * sense for an event with multiple dispatches (bubbled) to keep track of the
 * return values at each dispatch execution, but it does tend to make sense when
 * dealing with "direct" dispatches.
 *
 * @return {*} The return value of executing the single dispatch.
 */


/**
 * @param {SyntheticEvent} event
 * @return {boolean} True iff number of dispatches accumulated is greater than 0.
 */

/**
 * Accumulates items that must not be null or undefined into the first one. This
 * is used to conserve memory by avoiding array allocations, and thus sacrifices
 * API cleanness. Since `current` can be null before being passed in and not
 * null after this function, make sure to assign it back to `current`:
 *
 * `a = accumulateInto(a, b);`
 *
 * This API should be sparingly used. Try `accumulate` for something cleaner.
 *
 * @return {*|array<*>} An accumulation of items.
 */

function accumulateInto(current, next) {
  (function () {
    if (!(next != null)) {
      {
        throw ReactError(Error('accumulateInto(...): Accumulated items must not be null or undefined.'));
      }
    }
  })();

  if (current == null) {
    return next;
  }

  // Both are not empty. Warning: Never call x.concat(y) when you are not
  // certain that x is an Array (x could be a string with concat method).
  if (Array.isArray(current)) {
    if (Array.isArray(next)) {
      current.push.apply(current, next);
      return current;
    }
    current.push(next);
    return current;
  }

  if (Array.isArray(next)) {
    // A bit too dangerous to mutate `next`.
    return [current].concat(next);
  }

  return [current, next];
}

/**
 * @param {array} arr an "accumulation" of items which is either an Array or
 * a single item. Useful when paired with the `accumulate` module. This is a
 * simple utility that allows us to reason about a collection of items, but
 * handling the case when there is exactly one item (and we do not need to
 * allocate an array).
 * @param {function} cb Callback invoked with each element or a collection.
 * @param {?} [scope] Scope used as `this` in a callback.
 */
function forEachAccumulated(arr, cb, scope) {
  if (Array.isArray(arr)) {
    arr.forEach(cb, scope);
  } else if (arr) {
    cb.call(scope, arr);
  }
}

/**
 * Internal queue of events that have accumulated their dispatches and are
 * waiting to have their dispatches executed.
 */
var eventQueue = null;

/**
 * Dispatches an event and releases it back into the pool, unless persistent.
 *
 * @param {?object} event Synthetic event to be dispatched.
 * @private
 */
var executeDispatchesAndRelease = function (event) {
  if (event) {
    executeDispatchesInOrder(event);

    if (!event.isPersistent()) {
      event.constructor.release(event);
    }
  }
};
var executeDispatchesAndReleaseTopLevel = function (e) {
  return executeDispatchesAndRelease(e);
};

function runEventsInBatch(events) {
  if (events !== null) {
    eventQueue = accumulateInto(eventQueue, events);
  }

  // Set `eventQueue` to null before processing it so that we can tell if more
  // events get enqueued while processing.
  var processingEventQueue = eventQueue;
  eventQueue = null;

  if (!processingEventQueue) {
    return;
  }

  forEachAccumulated(processingEventQueue, executeDispatchesAndReleaseTopLevel);
  (function () {
    if (!!eventQueue) {
      {
        throw ReactError(Error('processEventQueue(): Additional events were enqueued while processing an event queue. Support for this has not yet been implemented.'));
      }
    }
  })();
  // This would be a good time to rethrow if any of the event handlers threw.
  rethrowCaughtError();
}

function isInteractive(tag) {
  return tag === 'button' || tag === 'input' || tag === 'select' || tag === 'textarea';
}

function shouldPreventMouseEvent(name, type, props) {
  switch (name) {
    case 'onClick':
    case 'onClickCapture':
    case 'onDoubleClick':
    case 'onDoubleClickCapture':
    case 'onMouseDown':
    case 'onMouseDownCapture':
    case 'onMouseMove':
    case 'onMouseMoveCapture':
    case 'onMouseUp':
    case 'onMouseUpCapture':
      return !!(props.disabled && isInteractive(type));
    default:
      return false;
  }
}

/**
 * This is a unified interface for event plugins to be installed and configured.
 *
 * Event plugins can implement the following properties:
 *
 *   `extractEvents` {function(string, DOMEventTarget, string, object): *}
 *     Required. When a top-level event is fired, this method is expected to
 *     extract synthetic events that will in turn be queued and dispatched.
 *
 *   `eventTypes` {object}
 *     Optional, plugins that fire events must publish a mapping of registration
 *     names that are used to register listeners. Values of this mapping must
 *     be objects that contain `registrationName` or `phasedRegistrationNames`.
 *
 *   `executeDispatch` {function(object, function, string)}
 *     Optional, allows plugins to override how an event gets dispatched. By
 *     default, the listener is simply invoked.
 *
 * Each plugin that is injected into `EventsPluginHub` is immediately operable.
 *
 * @public
 */

/**
 * Methods for injecting dependencies.
 */
var injection = {
  /**
   * @param {array} InjectedEventPluginOrder
   * @public
   */
  injectEventPluginOrder: injectEventPluginOrder,

  /**
   * @param {object} injectedNamesToPlugins Map from names to plugin modules.
   */
  injectEventPluginsByName: injectEventPluginsByName
};

/**
 * @param {object} inst The instance, which is the source of events.
 * @param {string} registrationName Name of listener (e.g. `onClick`).
 * @return {?function} The stored callback.
 */
function getListener(inst, registrationName) {
  var listener = void 0;

  // TODO: shouldPreventMouseEvent is DOM-specific and definitely should not
  // live here; needs to be moved to a better place soon
  var stateNode = inst.stateNode;
  if (!stateNode) {
    // Work in progress (ex: onload events in incremental mode).
    return null;
  }
  var props = getFiberCurrentPropsFromNode(stateNode);
  if (!props) {
    // Work in progress.
    return null;
  }
  listener = props[registrationName];
  if (shouldPreventMouseEvent(registrationName, inst.type, props)) {
    return null;
  }
  (function () {
    if (!(!listener || typeof listener === 'function')) {
      {
        throw ReactError(Error('Expected `' + registrationName + '` listener to be a function, instead got a value of `' + typeof listener + '` type.'));
      }
    }
  })();
  return listener;
}

/**
 * Allows registered plugins an opportunity to extract events from top-level
 * native browser events.
 *
 * @return {*} An accumulation of synthetic events.
 * @internal
 */
function extractPluginEvents(topLevelType, targetInst, nativeEvent, nativeEventTarget) {
  var events = null;
  for (var i = 0; i < plugins.length; i++) {
    // Not every plugin in the ordering may be loaded at runtime.
    var possiblePlugin = plugins[i];
    if (possiblePlugin) {
      var extractedEvents = possiblePlugin.extractEvents(topLevelType, targetInst, nativeEvent, nativeEventTarget);
      if (extractedEvents) {
        events = accumulateInto(events, extractedEvents);
      }
    }
  }
  return events;
}

function runExtractedPluginEventsInBatch(topLevelType, targetInst, nativeEvent, nativeEventTarget) {
  var events = extractPluginEvents(topLevelType, targetInst, nativeEvent, nativeEventTarget);
  runEventsInBatch(events);
}

var FunctionComponent = 0;
var ClassComponent = 1;
var IndeterminateComponent = 2; // Before we know whether it is function or class
var HostRoot = 3; // Root of a host tree. Could be nested inside another node.
var HostPortal = 4; // A subtree. Could be an entry point to a different renderer.
var HostComponent = 5;
var HostText = 6;
var Fragment = 7;
var Mode = 8;
var ContextConsumer = 9;
var ContextProvider = 10;
var ForwardRef = 11;
var Profiler = 12;
var SuspenseComponent = 13;
var MemoComponent = 14;
var SimpleMemoComponent = 15;
var LazyComponent = 16;
var IncompleteClassComponent = 17;
var DehydratedSuspenseComponent = 18;
var SuspenseListComponent = 19;
var FundamentalComponent = 20;

var randomKey = Math.random().toString(36).slice(2);
var internalInstanceKey = '__reactInternalInstance$' + randomKey;
var internalEventHandlersKey = '__reactEventHandlers$' + randomKey;

function precacheFiberNode(hostInst, node) {
  node[internalInstanceKey] = hostInst;
}

/**
 * Given a DOM node, return the closest ReactDOMComponent or
 * ReactDOMTextComponent instance ancestor.
 */
function getClosestInstanceFromNode(node) {
  if (node[internalInstanceKey]) {
    return node[internalInstanceKey];
  }

  while (!node[internalInstanceKey]) {
    if (node.parentNode) {
      node = node.parentNode;
    } else {
      // Top of the tree. This node must not be part of a React tree (or is
      // unmounted, potentially).
      return null;
    }
  }

  var inst = node[internalInstanceKey];
  if (inst.tag === HostComponent || inst.tag === HostText) {
    // In Fiber, this will always be the deepest root.
    return inst;
  }

  return null;
}

/**
 * Given a DOM node, return the ReactDOMComponent or ReactDOMTextComponent
 * instance, or null if the node was not rendered by this React.
 */
function getInstanceFromNode$1(node) {
  var inst = node[internalInstanceKey];
  if (inst) {
    if (inst.tag === HostComponent || inst.tag === HostText) {
      return inst;
    } else {
      return null;
    }
  }
  return null;
}

/**
 * Given a ReactDOMComponent or ReactDOMTextComponent, return the corresponding
 * DOM node.
 */
function getNodeFromInstance$1(inst) {
  if (inst.tag === HostComponent || inst.tag === HostText) {
    // In Fiber this, is just the state node right now. We assume it will be
    // a host component or host text.
    return inst.stateNode;
  }

  // Without this first invariant, passing a non-DOM-component triggers the next
  // invariant for a missing parent, which is super confusing.
  (function () {
    {
      {
        throw ReactError(Error('getNodeFromInstance: Invalid argument.'));
      }
    }
  })();
}

function getFiberCurrentPropsFromNode$1(node) {
  return node[internalEventHandlersKey] || null;
}

function updateFiberProps(node, props) {
  node[internalEventHandlersKey] = props;
}

function getParent(inst) {
  do {
    inst = inst.return;
    // TODO: If this is a HostRoot we might want to bail out.
    // That is depending on if we want nested subtrees (layers) to bubble
    // events to their parent. We could also go through parentNode on the
    // host node but that wouldn't work for React Native and doesn't let us
    // do the portal feature.
  } while (inst && inst.tag !== HostComponent);
  if (inst) {
    return inst;
  }
  return null;
}

/**
 * Return the lowest common ancestor of A and B, or null if they are in
 * different trees.
 */
function getLowestCommonAncestor(instA, instB) {
  var depthA = 0;
  for (var tempA = instA; tempA; tempA = getParent(tempA)) {
    depthA++;
  }
  var depthB = 0;
  for (var tempB = instB; tempB; tempB = getParent(tempB)) {
    depthB++;
  }

  // If A is deeper, crawl up.
  while (depthA - depthB > 0) {
    instA = getParent(instA);
    depthA--;
  }

  // If B is deeper, crawl up.
  while (depthB - depthA > 0) {
    instB = getParent(instB);
    depthB--;
  }

  // Walk in lockstep until we find a match.
  var depth = depthA;
  while (depth--) {
    if (instA === instB || instA === instB.alternate) {
      return instA;
    }
    instA = getParent(instA);
    instB = getParent(instB);
  }
  return null;
}

/**
 * Return if A is an ancestor of B.
 */


/**
 * Return the parent instance of the passed-in instance.
 */


/**
 * Simulates the traversal of a two-phase, capture/bubble event dispatch.
 */
function traverseTwoPhase(inst, fn, arg) {
  var path = [];
  while (inst) {
    path.push(inst);
    inst = getParent(inst);
  }
  var i = void 0;
  for (i = path.length; i-- > 0;) {
    fn(path[i], 'captured', arg);
  }
  for (i = 0; i < path.length; i++) {
    fn(path[i], 'bubbled', arg);
  }
}

/**
 * Traverses the ID hierarchy and invokes the supplied `cb` on any IDs that
 * should would receive a `mouseEnter` or `mouseLeave` event.
 *
 * Does not invoke the callback on the nearest common ancestor because nothing
 * "entered" or "left" that element.
 */
function traverseEnterLeave(from, to, fn, argFrom, argTo) {
  var common = from && to ? getLowestCommonAncestor(from, to) : null;
  var pathFrom = [];
  while (true) {
    if (!from) {
      break;
    }
    if (from === common) {
      break;
    }
    var alternate = from.alternate;
    if (alternate !== null && alternate === common) {
      break;
    }
    pathFrom.push(from);
    from = getParent(from);
  }
  var pathTo = [];
  while (true) {
    if (!to) {
      break;
    }
    if (to === common) {
      break;
    }
    var _alternate = to.alternate;
    if (_alternate !== null && _alternate === common) {
      break;
    }
    pathTo.push(to);
    to = getParent(to);
  }
  for (var i = 0; i < pathFrom.length; i++) {
    fn(pathFrom[i], 'bubbled', argFrom);
  }
  for (var _i = pathTo.length; _i-- > 0;) {
    fn(pathTo[_i], 'captured', argTo);
  }
}

/**
 * Some event types have a notion of different registration names for different
 * "phases" of propagation. This finds listeners by a given phase.
 */
function listenerAtPhase(inst, event, propagationPhase) {
  var registrationName = event.dispatchConfig.phasedRegistrationNames[propagationPhase];
  return getListener(inst, registrationName);
}

/**
 * A small set of propagation patterns, each of which will accept a small amount
 * of information, and generate a set of "dispatch ready event objects" - which
 * are sets of events that have already been annotated with a set of dispatched
 * listener functions/ids. The API is designed this way to discourage these
 * propagation strategies from actually executing the dispatches, since we
 * always want to collect the entire set of dispatches before executing even a
 * single one.
 */

/**
 * Tags a `SyntheticEvent` with dispatched listeners. Creating this function
 * here, allows us to not have to bind or create functions for each event.
 * Mutating the event's members allows us to not have to create a wrapping
 * "dispatch" object that pairs the event with the listener.
 */
function accumulateDirectionalDispatches(inst, phase, event) {
  {
    !inst ? warningWithoutStack$1(false, 'Dispatching inst must not be null') : void 0;
  }
  var listener = listenerAtPhase(inst, event, phase);
  if (listener) {
    event._dispatchListeners = accumulateInto(event._dispatchListeners, listener);
    event._dispatchInstances = accumulateInto(event._dispatchInstances, inst);
  }
}

/**
 * Collect dispatches (must be entirely collected before dispatching - see unit
 * tests). Lazily allocate the array to conserve memory.  We must loop through
 * each event and perform the traversal for each one. We cannot perform a
 * single traversal for the entire collection of events because each event may
 * have a different target.
 */
function accumulateTwoPhaseDispatchesSingle(event) {
  if (event && event.dispatchConfig.phasedRegistrationNames) {
    traverseTwoPhase(event._targetInst, accumulateDirectionalDispatches, event);
  }
}

/**
 * Accumulates without regard to direction, does not look for phased
 * registration names. Same as `accumulateDirectDispatchesSingle` but without
 * requiring that the `dispatchMarker` be the same as the dispatched ID.
 */
function accumulateDispatches(inst, ignoredDirection, event) {
  if (inst && event && event.dispatchConfig.registrationName) {
    var registrationName = event.dispatchConfig.registrationName;
    var listener = getListener(inst, registrationName);
    if (listener) {
      event._dispatchListeners = accumulateInto(event._dispatchListeners, listener);
      event._dispatchInstances = accumulateInto(event._dispatchInstances, inst);
    }
  }
}

/**
 * Accumulates dispatches on an `SyntheticEvent`, but only for the
 * `dispatchMarker`.
 * @param {SyntheticEvent} event
 */
function accumulateDirectDispatchesSingle(event) {
  if (event && event.dispatchConfig.registrationName) {
    accumulateDispatches(event._targetInst, null, event);
  }
}

function accumulateTwoPhaseDispatches(events) {
  forEachAccumulated(events, accumulateTwoPhaseDispatchesSingle);
}



function accumulateEnterLeaveDispatches(leave, enter, from, to) {
  traverseEnterLeave(from, to, accumulateDispatches, leave, enter);
}

function accumulateDirectDispatches(events) {
  forEachAccumulated(events, accumulateDirectDispatchesSingle);
}

var canUseDOM = !!(typeof window !== 'undefined' && typeof window.document !== 'undefined' && typeof window.document.createElement !== 'undefined');

// Do not use the below two methods directly!
// Instead use constants exported from DOMTopLevelEventTypes in ReactDOM.
// (It is the only module that is allowed to access these methods.)

function unsafeCastStringToDOMTopLevelType(topLevelType) {
  return topLevelType;
}

function unsafeCastDOMTopLevelTypeToString(topLevelType) {
  return topLevelType;
}

/**
 * Generate a mapping of standard vendor prefixes using the defined style property and event name.
 *
 * @param {string} styleProp
 * @param {string} eventName
 * @returns {object}
 */
function makePrefixMap(styleProp, eventName) {
  var prefixes = {};

  prefixes[styleProp.toLowerCase()] = eventName.toLowerCase();
  prefixes['Webkit' + styleProp] = 'webkit' + eventName;
  prefixes['Moz' + styleProp] = 'moz' + eventName;

  return prefixes;
}

/**
 * A list of event names to a configurable list of vendor prefixes.
 */
var vendorPrefixes = {
  animationend: makePrefixMap('Animation', 'AnimationEnd'),
  animationiteration: makePrefixMap('Animation', 'AnimationIteration'),
  animationstart: makePrefixMap('Animation', 'AnimationStart'),
  transitionend: makePrefixMap('Transition', 'TransitionEnd')
};

/**
 * Event names that have already been detected and prefixed (if applicable).
 */
var prefixedEventNames = {};

/**
 * Element to check for prefixes on.
 */
var style = {};

/**
 * Bootstrap if a DOM exists.
 */
if (canUseDOM) {
  style = document.createElement('div').style;

  // On some platforms, in particular some releases of Android 4.x,
  // the un-prefixed "animation" and "transition" properties are defined on the
  // style object but the events that fire will still be prefixed, so we need
  // to check if the un-prefixed events are usable, and if not remove them from the map.
  if (!('AnimationEvent' in window)) {
    delete vendorPrefixes.animationend.animation;
    delete vendorPrefixes.animationiteration.animation;
    delete vendorPrefixes.animationstart.animation;
  }

  // Same as above
  if (!('TransitionEvent' in window)) {
    delete vendorPrefixes.transitionend.transition;
  }
}

/**
 * Attempts to determine the correct vendor prefixed event name.
 *
 * @param {string} eventName
 * @returns {string}
 */
function getVendorPrefixedEventName(eventName) {
  if (prefixedEventNames[eventName]) {
    return prefixedEventNames[eventName];
  } else if (!vendorPrefixes[eventName]) {
    return eventName;
  }

  var prefixMap = vendorPrefixes[eventName];

  for (var styleProp in prefixMap) {
    if (prefixMap.hasOwnProperty(styleProp) && styleProp in style) {
      return prefixedEventNames[eventName] = prefixMap[styleProp];
    }
  }

  return eventName;
}

/**
 * To identify top level events in ReactDOM, we use constants defined by this
 * module. This is the only module that uses the unsafe* methods to express
 * that the constants actually correspond to the browser event names. This lets
 * us save some bundle size by avoiding a top level type -> event name map.
 * The rest of ReactDOM code should import top level types from this file.
 */
var TOP_ABORT = unsafeCastStringToDOMTopLevelType('abort');
var TOP_ANIMATION_END = unsafeCastStringToDOMTopLevelType(getVendorPrefixedEventName('animationend'));
var TOP_ANIMATION_ITERATION = unsafeCastStringToDOMTopLevelType(getVendorPrefixedEventName('animationiteration'));
var TOP_ANIMATION_START = unsafeCastStringToDOMTopLevelType(getVendorPrefixedEventName('animationstart'));
var TOP_BLUR = unsafeCastStringToDOMTopLevelType('blur');
var TOP_CAN_PLAY = unsafeCastStringToDOMTopLevelType('canplay');
var TOP_CAN_PLAY_THROUGH = unsafeCastStringToDOMTopLevelType('canplaythrough');
var TOP_CANCEL = unsafeCastStringToDOMTopLevelType('cancel');
var TOP_CHANGE = unsafeCastStringToDOMTopLevelType('change');
var TOP_CLICK = unsafeCastStringToDOMTopLevelType('click');
var TOP_CLOSE = unsafeCastStringToDOMTopLevelType('close');
var TOP_COMPOSITION_END = unsafeCastStringToDOMTopLevelType('compositionend');
var TOP_COMPOSITION_START = unsafeCastStringToDOMTopLevelType('compositionstart');
var TOP_COMPOSITION_UPDATE = unsafeCastStringToDOMTopLevelType('compositionupdate');
var TOP_CONTEXT_MENU = unsafeCastStringToDOMTopLevelType('contextmenu');
var TOP_COPY = unsafeCastStringToDOMTopLevelType('copy');
var TOP_CUT = unsafeCastStringToDOMTopLevelType('cut');
var TOP_DOUBLE_CLICK = unsafeCastStringToDOMTopLevelType('dblclick');
var TOP_AUX_CLICK = unsafeCastStringToDOMTopLevelType('auxclick');
var TOP_DRAG = unsafeCastStringToDOMTopLevelType('drag');
var TOP_DRAG_END = unsafeCastStringToDOMTopLevelType('dragend');
var TOP_DRAG_ENTER = unsafeCastStringToDOMTopLevelType('dragenter');
var TOP_DRAG_EXIT = unsafeCastStringToDOMTopLevelType('dragexit');
var TOP_DRAG_LEAVE = unsafeCastStringToDOMTopLevelType('dragleave');
var TOP_DRAG_OVER = unsafeCastStringToDOMTopLevelType('dragover');
var TOP_DRAG_START = unsafeCastStringToDOMTopLevelType('dragstart');
var TOP_DROP = unsafeCastStringToDOMTopLevelType('drop');
var TOP_DURATION_CHANGE = unsafeCastStringToDOMTopLevelType('durationchange');
var TOP_EMPTIED = unsafeCastStringToDOMTopLevelType('emptied');
var TOP_ENCRYPTED = unsafeCastStringToDOMTopLevelType('encrypted');
var TOP_ENDED = unsafeCastStringToDOMTopLevelType('ended');
var TOP_ERROR = unsafeCastStringToDOMTopLevelType('error');
var TOP_FOCUS = unsafeCastStringToDOMTopLevelType('focus');
var TOP_GOT_POINTER_CAPTURE = unsafeCastStringToDOMTopLevelType('gotpointercapture');
var TOP_INPUT = unsafeCastStringToDOMTopLevelType('input');
var TOP_INVALID = unsafeCastStringToDOMTopLevelType('invalid');
var TOP_KEY_DOWN = unsafeCastStringToDOMTopLevelType('keydown');
var TOP_KEY_PRESS = unsafeCastStringToDOMTopLevelType('keypress');
var TOP_KEY_UP = unsafeCastStringToDOMTopLevelType('keyup');
var TOP_LOAD = unsafeCastStringToDOMTopLevelType('load');
var TOP_LOAD_START = unsafeCastStringToDOMTopLevelType('loadstart');
var TOP_LOADED_DATA = unsafeCastStringToDOMTopLevelType('loadeddata');
var TOP_LOADED_METADATA = unsafeCastStringToDOMTopLevelType('loadedmetadata');
var TOP_LOST_POINTER_CAPTURE = unsafeCastStringToDOMTopLevelType('lostpointercapture');
var TOP_MOUSE_DOWN = unsafeCastStringToDOMTopLevelType('mousedown');
var TOP_MOUSE_MOVE = unsafeCastStringToDOMTopLevelType('mousemove');
var TOP_MOUSE_OUT = unsafeCastStringToDOMTopLevelType('mouseout');
var TOP_MOUSE_OVER = unsafeCastStringToDOMTopLevelType('mouseover');
var TOP_MOUSE_UP = unsafeCastStringToDOMTopLevelType('mouseup');
var TOP_PASTE = unsafeCastStringToDOMTopLevelType('paste');
var TOP_PAUSE = unsafeCastStringToDOMTopLevelType('pause');
var TOP_PLAY = unsafeCastStringToDOMTopLevelType('play');
var TOP_PLAYING = unsafeCastStringToDOMTopLevelType('playing');
var TOP_POINTER_CANCEL = unsafeCastStringToDOMTopLevelType('pointercancel');
var TOP_POINTER_DOWN = unsafeCastStringToDOMTopLevelType('pointerdown');


var TOP_POINTER_MOVE = unsafeCastStringToDOMTopLevelType('pointermove');
var TOP_POINTER_OUT = unsafeCastStringToDOMTopLevelType('pointerout');
var TOP_POINTER_OVER = unsafeCastStringToDOMTopLevelType('pointerover');
var TOP_POINTER_UP = unsafeCastStringToDOMTopLevelType('pointerup');
var TOP_PROGRESS = unsafeCastStringToDOMTopLevelType('progress');
var TOP_RATE_CHANGE = unsafeCastStringToDOMTopLevelType('ratechange');
var TOP_RESET = unsafeCastStringToDOMTopLevelType('reset');
var TOP_SCROLL = unsafeCastStringToDOMTopLevelType('scroll');
var TOP_SEEKED = unsafeCastStringToDOMTopLevelType('seeked');
var TOP_SEEKING = unsafeCastStringToDOMTopLevelType('seeking');
var TOP_SELECTION_CHANGE = unsafeCastStringToDOMTopLevelType('selectionchange');
var TOP_STALLED = unsafeCastStringToDOMTopLevelType('stalled');
var TOP_SUBMIT = unsafeCastStringToDOMTopLevelType('submit');
var TOP_SUSPEND = unsafeCastStringToDOMTopLevelType('suspend');
var TOP_TEXT_INPUT = unsafeCastStringToDOMTopLevelType('textInput');
var TOP_TIME_UPDATE = unsafeCastStringToDOMTopLevelType('timeupdate');
var TOP_TOGGLE = unsafeCastStringToDOMTopLevelType('toggle');
var TOP_TOUCH_CANCEL = unsafeCastStringToDOMTopLevelType('touchcancel');
var TOP_TOUCH_END = unsafeCastStringToDOMTopLevelType('touchend');
var TOP_TOUCH_MOVE = unsafeCastStringToDOMTopLevelType('touchmove');
var TOP_TOUCH_START = unsafeCastStringToDOMTopLevelType('touchstart');
var TOP_TRANSITION_END = unsafeCastStringToDOMTopLevelType(getVendorPrefixedEventName('transitionend'));
var TOP_VOLUME_CHANGE = unsafeCastStringToDOMTopLevelType('volumechange');
var TOP_WAITING = unsafeCastStringToDOMTopLevelType('waiting');
var TOP_WHEEL = unsafeCastStringToDOMTopLevelType('wheel');

// List of events that need to be individually attached to media elements.
// Note that events in this list will *not* be listened to at the top level
// unless they're explicitly whitelisted in `ReactBrowserEventEmitter.listenTo`.
var mediaEventTypes = [TOP_ABORT, TOP_CAN_PLAY, TOP_CAN_PLAY_THROUGH, TOP_DURATION_CHANGE, TOP_EMPTIED, TOP_ENCRYPTED, TOP_ENDED, TOP_ERROR, TOP_LOADED_DATA, TOP_LOADED_METADATA, TOP_LOAD_START, TOP_PAUSE, TOP_PLAY, TOP_PLAYING, TOP_PROGRESS, TOP_RATE_CHANGE, TOP_SEEKED, TOP_SEEKING, TOP_STALLED, TOP_SUSPEND, TOP_TIME_UPDATE, TOP_VOLUME_CHANGE, TOP_WAITING];

function getRawEventName(topLevelType) {
  return unsafeCastDOMTopLevelTypeToString(topLevelType);
}

/**
 * These variables store information about text content of a target node,
 * allowing comparison of content before and after a given event.
 *
 * Identify the node where selection currently begins, then observe
 * both its text content and its current position in the DOM. Since the
 * browser may natively replace the target node during composition, we can
 * use its position to find its replacement.
 *
 *
 */

var root = null;
var startText = null;
var fallbackText = null;

function initialize(nativeEventTarget) {
  root = nativeEventTarget;
  startText = getText();
  return true;
}

function reset() {
  root = null;
  startText = null;
  fallbackText = null;
}

function getData() {
  if (fallbackText) {
    return fallbackText;
  }

  var start = void 0;
  var startValue = startText;
  var startLength = startValue.length;
  var end = void 0;
  var endValue = getText();
  var endLength = endValue.length;

  for (start = 0; start < startLength; start++) {
    if (startValue[start] !== endValue[start]) {
      break;
    }
  }

  var minEnd = startLength - start;
  for (end = 1; end <= minEnd; end++) {
    if (startValue[startLength - end] !== endValue[endLength - end]) {
      break;
    }
  }

  var sliceTail = end > 1 ? 1 - end : undefined;
  fallbackText = endValue.slice(start, sliceTail);
  return fallbackText;
}

function getText() {
  if ('value' in root) {
    return root.value;
  }
  return root.textContent;
}

/* eslint valid-typeof: 0 */

var EVENT_POOL_SIZE = 10;

/**
 * @interface Event
 * @see http://www.w3.org/TR/DOM-Level-3-Events/
 */
var EventInterface = {
  type: null,
  target: null,
  // currentTarget is set when dispatching; no use in copying it here
  currentTarget: function () {
    return null;
  },
  eventPhase: null,
  bubbles: null,
  cancelable: null,
  timeStamp: function (event) {
    return event.timeStamp || Date.now();
  },
  defaultPrevented: null,
  isTrusted: null
};

function functionThatReturnsTrue() {
  return true;
}

function functionThatReturnsFalse() {
  return false;
}

/**
 * Synthetic events are dispatched by event plugins, typically in response to a
 * top-level event delegation handler.
 *
 * These systems should generally use pooling to reduce the frequency of garbage
 * collection. The system should check `isPersistent` to determine whether the
 * event should be released into the pool after being dispatched. Users that
 * need a persisted event should invoke `persist`.
 *
 * Synthetic events (and subclasses) implement the DOM Level 3 Events API by
 * normalizing browser quirks. Subclasses do not necessarily have to implement a
 * DOM interface; custom application-specific events can also subclass this.
 *
 * @param {object} dispatchConfig Configuration used to dispatch this event.
 * @param {*} targetInst Marker identifying the event target.
 * @param {object} nativeEvent Native browser event.
 * @param {DOMEventTarget} nativeEventTarget Target node.
 */
function SyntheticEvent(dispatchConfig, targetInst, nativeEvent, nativeEventTarget) {
  {
    // these have a getter/setter for warnings
    delete this.nativeEvent;
    delete this.preventDefault;
    delete this.stopPropagation;
    delete this.isDefaultPrevented;
    delete this.isPropagationStopped;
  }

  this.dispatchConfig = dispatchConfig;
  this._targetInst = targetInst;
  this.nativeEvent = nativeEvent;

  var Interface = this.constructor.Interface;
  for (var propName in Interface) {
    if (!Interface.hasOwnProperty(propName)) {
      continue;
    }
    {
      delete this[propName]; // this has a getter/setter for warnings
    }
    var normalize = Interface[propName];
    if (normalize) {
      this[propName] = normalize(nativeEvent);
    } else {
      if (propName === 'target') {
        this.target = nativeEventTarget;
      } else {
        this[propName] = nativeEvent[propName];
      }
    }
  }

  var defaultPrevented = nativeEvent.defaultPrevented != null ? nativeEvent.defaultPrevented : nativeEvent.returnValue === false;
  if (defaultPrevented) {
    this.isDefaultPrevented = functionThatReturnsTrue;
  } else {
    this.isDefaultPrevented = functionThatReturnsFalse;
  }
  this.isPropagationStopped = functionThatReturnsFalse;
  return this;
}

_assign(SyntheticEvent.prototype, {
  preventDefault: function () {
    this.defaultPrevented = true;
    var event = this.nativeEvent;
    if (!event) {
      return;
    }

    if (event.preventDefault) {
      event.preventDefault();
    } else if (typeof event.returnValue !== 'unknown') {
      event.returnValue = false;
    }
    this.isDefaultPrevented = functionThatReturnsTrue;
  },

  stopPropagation: function () {
    var event = this.nativeEvent;
    if (!event) {
      return;
    }

    if (event.stopPropagation) {
      event.stopPropagation();
    } else if (typeof event.cancelBubble !== 'unknown') {
      // The ChangeEventPlugin registers a "propertychange" event for
      // IE. This event does not support bubbling or cancelling, and
      // any references to cancelBubble throw "Member not found".  A
      // typeof check of "unknown" circumvents this issue (and is also
      // IE specific).
      event.cancelBubble = true;
    }

    this.isPropagationStopped = functionThatReturnsTrue;
  },

  /**
   * We release all dispatched `SyntheticEvent`s after each event loop, adding
   * them back into the pool. This allows a way to hold onto a reference that
   * won't be added back into the pool.
   */
  persist: function () {
    this.isPersistent = functionThatReturnsTrue;
  },

  /**
   * Checks if this event should be released back into the pool.
   *
   * @return {boolean} True if this should not be released, false otherwise.
   */
  isPersistent: functionThatReturnsFalse,

  /**
   * `PooledClass` looks for `destructor` on each instance it releases.
   */
  destructor: function () {
    var Interface = this.constructor.Interface;
    for (var propName in Interface) {
      {
        Object.defineProperty(this, propName, getPooledWarningPropertyDefinition(propName, Interface[propName]));
      }
    }
    this.dispatchConfig = null;
    this._targetInst = null;
    this.nativeEvent = null;
    this.isDefaultPrevented = functionThatReturnsFalse;
    this.isPropagationStopped = functionThatReturnsFalse;
    this._dispatchListeners = null;
    this._dispatchInstances = null;
    {
      Object.defineProperty(this, 'nativeEvent', getPooledWarningPropertyDefinition('nativeEvent', null));
      Object.defineProperty(this, 'isDefaultPrevented', getPooledWarningPropertyDefinition('isDefaultPrevented', functionThatReturnsFalse));
      Object.defineProperty(this, 'isPropagationStopped', getPooledWarningPropertyDefinition('isPropagationStopped', functionThatReturnsFalse));
      Object.defineProperty(this, 'preventDefault', getPooledWarningPropertyDefinition('preventDefault', function () {}));
      Object.defineProperty(this, 'stopPropagation', getPooledWarningPropertyDefinition('stopPropagation', function () {}));
    }
  }
});

SyntheticEvent.Interface = EventInterface;

/**
 * Helper to reduce boilerplate when creating subclasses.
 */
SyntheticEvent.extend = function (Interface) {
  var Super = this;

  var E = function () {};
  E.prototype = Super.prototype;
  var prototype = new E();

  function Class() {
    return Super.apply(this, arguments);
  }
  _assign(prototype, Class.prototype);
  Class.prototype = prototype;
  Class.prototype.constructor = Class;

  Class.Interface = _assign({}, Super.Interface, Interface);
  Class.extend = Super.extend;
  addEventPoolingTo(Class);

  return Class;
};

addEventPoolingTo(SyntheticEvent);

/**
 * Helper to nullify syntheticEvent instance properties when destructing
 *
 * @param {String} propName
 * @param {?object} getVal
 * @return {object} defineProperty object
 */
function getPooledWarningPropertyDefinition(propName, getVal) {
  var isFunction = typeof getVal === 'function';
  return {
    configurable: true,
    set: set,
    get: get
  };

  function set(val) {
    var action = isFunction ? 'setting the method' : 'setting the property';
    warn(action, 'This is effectively a no-op');
    return val;
  }

  function get() {
    var action = isFunction ? 'accessing the method' : 'accessing the property';
    var result = isFunction ? 'This is a no-op function' : 'This is set to null';
    warn(action, result);
    return getVal;
  }

  function warn(action, result) {
    var warningCondition = false;
    !warningCondition ? warningWithoutStack$1(false, "This synthetic event is reused for performance reasons. If you're seeing this, " + "you're %s `%s` on a released/nullified synthetic event. %s. " + 'If you must keep the original synthetic event around, use event.persist(). ' + 'See https://fb.me/react-event-pooling for more information.', action, propName, result) : void 0;
  }
}

function getPooledEvent(dispatchConfig, targetInst, nativeEvent, nativeInst) {
  var EventConstructor = this;
  if (EventConstructor.eventPool.length) {
    var instance = EventConstructor.eventPool.pop();
    EventConstructor.call(instance, dispatchConfig, targetInst, nativeEvent, nativeInst);
    return instance;
  }
  return new EventConstructor(dispatchConfig, targetInst, nativeEvent, nativeInst);
}

function releasePooledEvent(event) {
  var EventConstructor = this;
  (function () {
    if (!(event instanceof EventConstructor)) {
      {
        throw ReactError(Error('Trying to release an event instance into a pool of a different type.'));
      }
    }
  })();
  event.destructor();
  if (EventConstructor.eventPool.length < EVENT_POOL_SIZE) {
    EventConstructor.eventPool.push(event);
  }
}

function addEventPoolingTo(EventConstructor) {
  EventConstructor.eventPool = [];
  EventConstructor.getPooled = getPooledEvent;
  EventConstructor.release = releasePooledEvent;
}

/**
 * @interface Event
 * @see http://www.w3.org/TR/DOM-Level-3-Events/#events-compositionevents
 */
var SyntheticCompositionEvent = SyntheticEvent.extend({
  data: null
});

/**
 * @interface Event
 * @see http://www.w3.org/TR/2013/WD-DOM-Level-3-Events-20131105
 *      /#events-inputevents
 */
var SyntheticInputEvent = SyntheticEvent.extend({
  data: null
});

var END_KEYCODES = [9, 13, 27, 32]; // Tab, Return, Esc, Space
var START_KEYCODE = 229;

var canUseCompositionEvent = canUseDOM && 'CompositionEvent' in window;

var documentMode = null;
if (canUseDOM && 'documentMode' in document) {
  documentMode = document.documentMode;
}

// Webkit offers a very useful `textInput` event that can be used to
// directly represent `beforeInput`. The IE `textinput` event is not as
// useful, so we don't use it.
var canUseTextInputEvent = canUseDOM && 'TextEvent' in window && !documentMode;

// In IE9+, we have access to composition events, but the data supplied
// by the native compositionend event may be incorrect. Japanese ideographic
// spaces, for instance (\u3000) are not recorded correctly.
var useFallbackCompositionData = canUseDOM && (!canUseCompositionEvent || documentMode && documentMode > 8 && documentMode <= 11);

var SPACEBAR_CODE = 32;
var SPACEBAR_CHAR = String.fromCharCode(SPACEBAR_CODE);

// Events and their corresponding property names.
var eventTypes = {
  beforeInput: {
    phasedRegistrationNames: {
      bubbled: 'onBeforeInput',
      captured: 'onBeforeInputCapture'
    },
    dependencies: [TOP_COMPOSITION_END, TOP_KEY_PRESS, TOP_TEXT_INPUT, TOP_PASTE]
  },
  compositionEnd: {
    phasedRegistrationNames: {
      bubbled: 'onCompositionEnd',
      captured: 'onCompositionEndCapture'
    },
    dependencies: [TOP_BLUR, TOP_COMPOSITION_END, TOP_KEY_DOWN, TOP_KEY_PRESS, TOP_KEY_UP, TOP_MOUSE_DOWN]
  },
  compositionStart: {
    phasedRegistrationNames: {
      bubbled: 'onCompositionStart',
      captured: 'onCompositionStartCapture'
    },
    dependencies: [TOP_BLUR, TOP_COMPOSITION_START, TOP_KEY_DOWN, TOP_KEY_PRESS, TOP_KEY_UP, TOP_MOUSE_DOWN]
  },
  compositionUpdate: {
    phasedRegistrationNames: {
      bubbled: 'onCompositionUpdate',
      captured: 'onCompositionUpdateCapture'
    },
    dependencies: [TOP_BLUR, TOP_COMPOSITION_UPDATE, TOP_KEY_DOWN, TOP_KEY_PRESS, TOP_KEY_UP, TOP_MOUSE_DOWN]
  }
};

// Track whether we've ever handled a keypress on the space key.
var hasSpaceKeypress = false;

/**
 * Return whether a native keypress event is assumed to be a command.
 * This is required because Firefox fires `keypress` events for key commands
 * (cut, copy, select-all, etc.) even though no character is inserted.
 */
function isKeypressCommand(nativeEvent) {
  return (nativeEvent.ctrlKey || nativeEvent.altKey || nativeEvent.metaKey) &&
  // ctrlKey && altKey is equivalent to AltGr, and is not a command.
  !(nativeEvent.ctrlKey && nativeEvent.altKey);
}

/**
 * Translate native top level events into event types.
 *
 * @param {string} topLevelType
 * @return {object}
 */
function getCompositionEventType(topLevelType) {
  switch (topLevelType) {
    case TOP_COMPOSITION_START:
      return eventTypes.compositionStart;
    case TOP_COMPOSITION_END:
      return eventTypes.compositionEnd;
    case TOP_COMPOSITION_UPDATE:
      return eventTypes.compositionUpdate;
  }
}

/**
 * Does our fallback best-guess model think this event signifies that
 * composition has begun?
 *
 * @param {string} topLevelType
 * @param {object} nativeEvent
 * @return {boolean}
 */
function isFallbackCompositionStart(topLevelType, nativeEvent) {
  return topLevelType === TOP_KEY_DOWN && nativeEvent.keyCode === START_KEYCODE;
}

/**
 * Does our fallback mode think that this event is the end of composition?
 *
 * @param {string} topLevelType
 * @param {object} nativeEvent
 * @return {boolean}
 */
function isFallbackCompositionEnd(topLevelType, nativeEvent) {
  switch (topLevelType) {
    case TOP_KEY_UP:
      // Command keys insert or clear IME input.
      return END_KEYCODES.indexOf(nativeEvent.keyCode) !== -1;
    case TOP_KEY_DOWN:
      // Expect IME keyCode on each keydown. If we get any other
      // code we must have exited earlier.
      return nativeEvent.keyCode !== START_KEYCODE;
    case TOP_KEY_PRESS:
    case TOP_MOUSE_DOWN:
    case TOP_BLUR:
      // Events are not possible without cancelling IME.
      return true;
    default:
      return false;
  }
}

/**
 * Google Input Tools provides composition data via a CustomEvent,
 * with the `data` property populated in the `detail` object. If this
 * is available on the event object, use it. If not, this is a plain
 * composition event and we have nothing special to extract.
 *
 * @param {object} nativeEvent
 * @return {?string}
 */
function getDataFromCustomEvent(nativeEvent) {
  var detail = nativeEvent.detail;
  if (typeof detail === 'object' && 'data' in detail) {
    return detail.data;
  }
  return null;
}

/**
 * Check if a composition event was triggered by Korean IME.
 * Our fallback mode does not work well with IE's Korean IME,
 * so just use native composition events when Korean IME is used.
 * Although CompositionEvent.locale property is deprecated,
 * it is available in IE, where our fallback mode is enabled.
 *
 * @param {object} nativeEvent
 * @return {boolean}
 */
function isUsingKoreanIME(nativeEvent) {
  return nativeEvent.locale === 'ko';
}

// Track the current IME composition status, if any.
var isComposing = false;

/**
 * @return {?object} A SyntheticCompositionEvent.
 */
function extractCompositionEvent(topLevelType, targetInst, nativeEvent, nativeEventTarget) {
  var eventType = void 0;
  var fallbackData = void 0;

  if (canUseCompositionEvent) {
    eventType = getCompositionEventType(topLevelType);
  } else if (!isComposing) {
    if (isFallbackCompositionStart(topLevelType, nativeEvent)) {
      eventType = eventTypes.compositionStart;
    }
  } else if (isFallbackCompositionEnd(topLevelType, nativeEvent)) {
    eventType = eventTypes.compositionEnd;
  }

  if (!eventType) {
    return null;
  }

  if (useFallbackCompositionData && !isUsingKoreanIME(nativeEvent)) {
    // The current composition is stored statically and must not be
    // overwritten while composition continues.
    if (!isComposing && eventType === eventTypes.compositionStart) {
      isComposing = initialize(nativeEventTarget);
    } else if (eventType === eventTypes.compositionEnd) {
      if (isComposing) {
        fallbackData = getData();
      }
    }
  }

  var event = SyntheticCompositionEvent.getPooled(eventType, targetInst, nativeEvent, nativeEventTarget);

  if (fallbackData) {
    // Inject data generated from fallback path into the synthetic event.
    // This matches the property of native CompositionEventInterface.
    event.data = fallbackData;
  } else {
    var customData = getDataFromCustomEvent(nativeEvent);
    if (customData !== null) {
      event.data = customData;
    }
  }

  accumulateTwoPhaseDispatches(event);
  return event;
}

/**
 * @param {TopLevelType} topLevelType Number from `TopLevelType`.
 * @param {object} nativeEvent Native browser event.
 * @return {?string} The string corresponding to this `beforeInput` event.
 */
function getNativeBeforeInputChars(topLevelType, nativeEvent) {
  switch (topLevelType) {
    case TOP_COMPOSITION_END:
      return getDataFromCustomEvent(nativeEvent);
    case TOP_KEY_PRESS:
      /**
       * If native `textInput` events are available, our goal is to make
       * use of them. However, there is a special case: the spacebar key.
       * In Webkit, preventing default on a spacebar `textInput` event
       * cancels character insertion, but it *also* causes the browser
       * to fall back to its default spacebar behavior of scrolling the
       * page.
       *
       * Tracking at:
       * https://code.google.com/p/chromium/issues/detail?id=355103
       *
       * To avoid this issue, use the keypress event as if no `textInput`
       * event is available.
       */
      var which = nativeEvent.which;
      if (which !== SPACEBAR_CODE) {
        return null;
      }

      hasSpaceKeypress = true;
      return SPACEBAR_CHAR;

    case TOP_TEXT_INPUT:
      // Record the characters to be added to the DOM.
      var chars = nativeEvent.data;

      // If it's a spacebar character, assume that we have already handled
      // it at the keypress level and bail immediately. Android Chrome
      // doesn't give us keycodes, so we need to ignore it.
      if (chars === SPACEBAR_CHAR && hasSpaceKeypress) {
        return null;
      }

      return chars;

    default:
      // For other native event types, do nothing.
      return null;
  }
}

/**
 * For browsers that do not provide the `textInput` event, extract the
 * appropriate string to use for SyntheticInputEvent.
 *
 * @param {number} topLevelType Number from `TopLevelEventTypes`.
 * @param {object} nativeEvent Native browser event.
 * @return {?string} The fallback string for this `beforeInput` event.
 */
function getFallbackBeforeInputChars(topLevelType, nativeEvent) {
  // If we are currently composing (IME) and using a fallback to do so,
  // try to extract the composed characters from the fallback object.
  // If composition event is available, we extract a string only at
  // compositionevent, otherwise extract it at fallback events.
  if (isComposing) {
    if (topLevelType === TOP_COMPOSITION_END || !canUseCompositionEvent && isFallbackCompositionEnd(topLevelType, nativeEvent)) {
      var chars = getData();
      reset();
      isComposing = false;
      return chars;
    }
    return null;
  }

  switch (topLevelType) {
    case TOP_PASTE:
      // If a paste event occurs after a keypress, throw out the input
      // chars. Paste events should not lead to BeforeInput events.
      return null;
    case TOP_KEY_PRESS:
      /**
       * As of v27, Firefox may fire keypress events even when no character
       * will be inserted. A few possibilities:
       *
       * - `which` is `0`. Arrow keys, Esc key, etc.
       *
       * - `which` is the pressed key code, but no char is available.
       *   Ex: 'AltGr + d` in Polish. There is no modified character for
       *   this key combination and no character is inserted into the
       *   document, but FF fires the keypress for char code `100` anyway.
       *   No `input` event will occur.
       *
       * - `which` is the pressed key code, but a command combination is
       *   being used. Ex: `Cmd+C`. No character is inserted, and no
       *   `input` event will occur.
       */
      if (!isKeypressCommand(nativeEvent)) {
        // IE fires the `keypress` event when a user types an emoji via
        // Touch keyboard of Windows.  In such a case, the `char` property
        // holds an emoji character like `\uD83D\uDE0A`.  Because its length
        // is 2, the property `which` does not represent an emoji correctly.
        // In such a case, we directly return the `char` property instead of
        // using `which`.
        if (nativeEvent.char && nativeEvent.char.length > 1) {
          return nativeEvent.char;
        } else if (nativeEvent.which) {
          return String.fromCharCode(nativeEvent.which);
        }
      }
      return null;
    case TOP_COMPOSITION_END:
      return useFallbackCompositionData && !isUsingKoreanIME(nativeEvent) ? null : nativeEvent.data;
    default:
      return null;
  }
}

/**
 * Extract a SyntheticInputEvent for `beforeInput`, based on either native
 * `textInput` or fallback behavior.
 *
 * @return {?object} A SyntheticInputEvent.
 */
function extractBeforeInputEvent(topLevelType, targetInst, nativeEvent, nativeEventTarget) {
  var chars = void 0;

  if (canUseTextInputEvent) {
    chars = getNativeBeforeInputChars(topLevelType, nativeEvent);
  } else {
    chars = getFallbackBeforeInputChars(topLevelType, nativeEvent);
  }

  // If no characters are being inserted, no BeforeInput event should
  // be fired.
  if (!chars) {
    return null;
  }

  var event = SyntheticInputEvent.getPooled(eventTypes.beforeInput, targetInst, nativeEvent, nativeEventTarget);

  event.data = chars;
  accumulateTwoPhaseDispatches(event);
  return event;
}

/**
 * Create an `onBeforeInput` event to match
 * http://www.w3.org/TR/2013/WD-DOM-Level-3-Events-20131105/#events-inputevents.
 *
 * This event plugin is based on the native `textInput` event
 * available in Chrome, Safari, Opera, and IE. This event fires after
 * `onKeyPress` and `onCompositionEnd`, but before `onInput`.
 *
 * `beforeInput` is spec'd but not implemented in any browsers, and
 * the `input` event does not provide any useful information about what has
 * actually been added, contrary to the spec. Thus, `textInput` is the best
 * available event to identify the characters that have actually been inserted
 * into the target node.
 *
 * This plugin is also responsible for emitting `composition` events, thus
 * allowing us to share composition fallback code for both `beforeInput` and
 * `composition` event types.
 */
var BeforeInputEventPlugin = {
  eventTypes: eventTypes,

  extractEvents: function (topLevelType, targetInst, nativeEvent, nativeEventTarget) {
    var composition = extractCompositionEvent(topLevelType, targetInst, nativeEvent, nativeEventTarget);

    var beforeInput = extractBeforeInputEvent(topLevelType, targetInst, nativeEvent, nativeEventTarget);

    if (composition === null) {
      return beforeInput;
    }

    if (beforeInput === null) {
      return composition;
    }

    return [composition, beforeInput];
  }
};

// Use to restore controlled state after a change event has fired.

var restoreImpl = null;
var restoreTarget = null;
var restoreQueue = null;

function restoreStateOfTarget(target) {
  // We perform this translation at the end of the event loop so that we
  // always receive the correct fiber here
  var internalInstance = getInstanceFromNode(target);
  if (!internalInstance) {
    // Unmounted
    return;
  }
  (function () {
    if (!(typeof restoreImpl === 'function')) {
      {
        throw ReactError(Error('setRestoreImplementation() needs to be called to handle a target for controlled events. This error is likely caused by a bug in React. Please file an issue.'));
      }
    }
  })();
  var props = getFiberCurrentPropsFromNode(internalInstance.stateNode);
  restoreImpl(internalInstance.stateNode, internalInstance.type, props);
}

function setRestoreImplementation(impl) {
  restoreImpl = impl;
}

function enqueueStateRestore(target) {
  if (restoreTarget) {
    if (restoreQueue) {
      restoreQueue.push(target);
    } else {
      restoreQueue = [target];
    }
  } else {
    restoreTarget = target;
  }
}

function needsStateRestore() {
  return restoreTarget !== null || restoreQueue !== null;
}

function restoreStateIfNeeded() {
  if (!restoreTarget) {
    return;
  }
  var target = restoreTarget;
  var queuedTargets = restoreQueue;
  restoreTarget = null;
  restoreQueue = null;

  restoreStateOfTarget(target);
  if (queuedTargets) {
    for (var i = 0; i < queuedTargets.length; i++) {
      restoreStateOfTarget(queuedTargets[i]);
    }
  }
}

var enableUserTimingAPI = true;

// Helps identify side effects in begin-phase lifecycle hooks and setState reducers:
var debugRenderPhaseSideEffects = false;

// In some cases, StrictMode should also double-render lifecycles.
// This can be confusing for tests though,
// And it can be bad for performance in production.
// This feature flag can be used to control the behavior:
var debugRenderPhaseSideEffectsForStrictMode = true;

// To preserve the "Pause on caught exceptions" behavior of the debugger, we
// replay the begin phase of a failed component inside invokeGuardedCallback.
var replayFailedUnitOfWorkWithInvokeGuardedCallback = true;

// Warn about deprecated, async-unsafe lifecycles; relates to RFC #6:
var warnAboutDeprecatedLifecycles = true;

// Gather advanced timing metrics for Profiler subtrees.
var enableProfilerTimer = true;

// Trace which interactions trigger each commit.
var enableSchedulerTracing = true;

// Only used in www builds.
var enableSuspenseServerRenderer = false; // TODO: true? Here it might just be false.

// Only used in www builds.


// Only used in www builds.


// Disable javascript: URL strings in href for XSS protection.
var disableJavaScriptURLs = false;

// React Fire: prevent the value and checked attributes from syncing
// with their related DOM properties
var disableInputAttributeSyncing = false;

// These APIs will no longer be "unstable" in the upcoming 16.7 release,
// Control this behavior with a flag to support 16.6 minor releases in the meanwhile.
var enableStableConcurrentModeAPIs = false;

var warnAboutShorthandPropertyCollision = false;

// See https://github.com/react-native-community/discussions-and-proposals/issues/72 for more information
// This is a flag so we can fix warnings in RN core before turning it on


// Experimental React Flare event system and event components support.
var enableFlareAPI = false;

// Experimental Host Component support.
var enableFundamentalAPI = false;

// New API for JSX transforms to target - https://github.com/reactjs/rfcs/pull/107


// We will enforce mocking scheduler with scheduler/unstable_mock at some point. (v17?)
// Till then, we warn about the missing mock, but still fallback to a sync mode compatible version
var warnAboutUnmockedScheduler = false;
// Temporary flag to revert the fix in #15650
var revertPassiveEffectsChange = false;

// For tests, we flush suspense fallbacks in an act scope;
// *except* in some of our own tests, where we test incremental loading states.
var flushSuspenseFallbacksInTests = true;

// Changes priority of some events like mousemove to user-blocking priority,
// but without making them discrete. The flag exists in case it causes
// starvation problems.
var enableUserBlockingEvents = false;

// Add a callback property to suspense to notify which promises are currently
// in the update queue. This allows reporting and tracing of what is causing
// the user to see a loading state.
var enableSuspenseCallback = false;

// Part of the simplification of React.createElement so we can eventually move
// from React.createElement to React.jsx
// https://github.com/reactjs/rfcs/blob/createlement-rfc/text/0000-create-element-changes.md
var warnAboutDefaultPropsOnFunctionComponents = false;

var disableLegacyContext = false;

var disableSchedulerTimeoutBasedOnReactExpirationTime = false;

// Used as a way to call batchedUpdates when we don't have a reference to
// the renderer. Such as when we're dispatching events or if third party
// libraries need to call batchedUpdates. Eventually, this API will go away when
// everything is batched by default. We'll then have a similar API to opt-out of
// scheduled work and instead do synchronous work.

// Defaults
var batchedUpdatesImpl = function (fn, bookkeeping) {
  return fn(bookkeeping);
};
var discreteUpdatesImpl = function (fn, a, b, c) {
  return fn(a, b, c);
};
var flushDiscreteUpdatesImpl = function () {};
var batchedEventUpdatesImpl = batchedUpdatesImpl;

var isInsideEventHandler = false;

function finishEventHandler() {
  // Here we wait until all updates have propagated, which is important
  // when using controlled components within layers:
  // https://github.com/facebook/react/issues/1698
  // Then we restore state of any controlled component.
  var controlledComponentsHavePendingUpdates = needsStateRestore();
  if (controlledComponentsHavePendingUpdates) {
    // If a controlled event was fired, we may need to restore the state of
    // the DOM node back to the controlled value. This is necessary when React
    // bails out of the update without touching the DOM.
    flushDiscreteUpdatesImpl();
    restoreStateIfNeeded();
  }
}

function batchedUpdates(fn, bookkeeping) {
  if (isInsideEventHandler) {
    // If we are currently inside another batch, we need to wait until it
    // fully completes before restoring state.
    return fn(bookkeeping);
  }
  isInsideEventHandler = true;
  try {
    return batchedUpdatesImpl(fn, bookkeeping);
  } finally {
    isInsideEventHandler = false;
    finishEventHandler();
  }
}

function batchedEventUpdates(fn, a, b) {
  if (isInsideEventHandler) {
    // If we are currently inside another batch, we need to wait until it
    // fully completes before restoring state.
    return fn(a, b);
  }
  isInsideEventHandler = true;
  try {
    return batchedEventUpdatesImpl(fn, a, b);
  } finally {
    isInsideEventHandler = false;
    finishEventHandler();
  }
}

function discreteUpdates(fn, a, b, c) {
  var prevIsInsideEventHandler = isInsideEventHandler;
  isInsideEventHandler = true;
  try {
    return discreteUpdatesImpl(fn, a, b, c);
  } finally {
    isInsideEventHandler = prevIsInsideEventHandler;
    if (!isInsideEventHandler) {
      finishEventHandler();
    }
  }
}

var lastFlushedEventTimeStamp = 0;
function flushDiscreteUpdatesIfNeeded(timeStamp) {
  // event.timeStamp isn't overly reliable due to inconsistencies in
  // how different browsers have historically provided the time stamp.
  // Some browsers provide high-resolution time stamps for all events,
  // some provide low-resolution time stamps for all events. FF < 52
  // even mixes both time stamps together. Some browsers even report
  // negative time stamps or time stamps that are 0 (iOS9) in some cases.
  // Given we are only comparing two time stamps with equality (!==),
  // we are safe from the resolution differences. If the time stamp is 0
  // we bail-out of preventing the flush, which can affect semantics,
  // such as if an earlier flush removes or adds event listeners that
  // are fired in the subsequent flush. However, this is the same
  // behaviour as we had before this change, so the risks are low.
  if (!isInsideEventHandler && (!enableFlareAPI || timeStamp === 0 || lastFlushedEventTimeStamp !== timeStamp)) {
    lastFlushedEventTimeStamp = timeStamp;
    flushDiscreteUpdatesImpl();
  }
}

function setBatchingImplementation(_batchedUpdatesImpl, _discreteUpdatesImpl, _flushDiscreteUpdatesImpl, _batchedEventUpdatesImpl) {
  batchedUpdatesImpl = _batchedUpdatesImpl;
  discreteUpdatesImpl = _discreteUpdatesImpl;
  flushDiscreteUpdatesImpl = _flushDiscreteUpdatesImpl;
  batchedEventUpdatesImpl = _batchedEventUpdatesImpl;
}

/**
 * @see http://www.whatwg.org/specs/web-apps/current-work/multipage/the-input-element.html#input-type-attr-summary
 */
var supportedInputTypes = {
  color: true,
  date: true,
  datetime: true,
  'datetime-local': true,
  email: true,
  month: true,
  number: true,
  password: true,
  range: true,
  search: true,
  tel: true,
  text: true,
  time: true,
  url: true,
  week: true
};

function isTextInputElement(elem) {
  var nodeName = elem && elem.nodeName && elem.nodeName.toLowerCase();

  if (nodeName === 'input') {
    return !!supportedInputTypes[elem.type];
  }

  if (nodeName === 'textarea') {
    return true;
  }

  return false;
}

/**
 * HTML nodeType values that represent the type of the node
 */

var ELEMENT_NODE = 1;
var TEXT_NODE = 3;
var COMMENT_NODE = 8;
var DOCUMENT_NODE = 9;
var DOCUMENT_FRAGMENT_NODE = 11;

/**
 * Gets the target node from a native browser event by accounting for
 * inconsistencies in browser DOM APIs.
 *
 * @param {object} nativeEvent Native browser event.
 * @return {DOMEventTarget} Target node.
 */
function getEventTarget(nativeEvent) {
  // Fallback to nativeEvent.srcElement for IE9
  // https://github.com/facebook/react/issues/12506
  var target = nativeEvent.target || nativeEvent.srcElement || window;

  // Normalize SVG <use> element events #4963
  if (target.correspondingUseElement) {
    target = target.correspondingUseElement;
  }

  // Safari may fire events on text nodes (Node.TEXT_NODE is 3).
  // @see http://www.quirksmode.org/js/events_properties.html
  return target.nodeType === TEXT_NODE ? target.parentNode : target;
}

/**
 * Checks if an event is supported in the current execution environment.
 *
 * NOTE: This will not work correctly for non-generic events such as `change`,
 * `reset`, `load`, `error`, and `select`.
 *
 * Borrows from Modernizr.
 *
 * @param {string} eventNameSuffix Event name, e.g. "click".
 * @return {boolean} True if the event is supported.
 * @internal
 * @license Modernizr 3.0.0pre (Custom Build) | MIT
 */
function isEventSupported(eventNameSuffix) {
  if (!canUseDOM) {
    return false;
  }

  var eventName = 'on' + eventNameSuffix;
  var isSupported = eventName in document;

  if (!isSupported) {
    var element = document.createElement('div');
    element.setAttribute(eventName, 'return;');
    isSupported = typeof element[eventName] === 'function';
  }

  return isSupported;
}

function isCheckable(elem) {
  var type = elem.type;
  var nodeName = elem.nodeName;
  return nodeName && nodeName.toLowerCase() === 'input' && (type === 'checkbox' || type === 'radio');
}

function getTracker(node) {
  return node._valueTracker;
}

function detachTracker(node) {
  node._valueTracker = null;
}

function getValueFromNode(node) {
  var value = '';
  if (!node) {
    return value;
  }

  if (isCheckable(node)) {
    value = node.checked ? 'true' : 'false';
  } else {
    value = node.value;
  }

  return value;
}

function trackValueOnNode(node) {
  var valueField = isCheckable(node) ? 'checked' : 'value';
  var descriptor = Object.getOwnPropertyDescriptor(node.constructor.prototype, valueField);

  var currentValue = '' + node[valueField];

  // if someone has already defined a value or Safari, then bail
  // and don't track value will cause over reporting of changes,
  // but it's better then a hard failure
  // (needed for certain tests that spyOn input values and Safari)
  if (node.hasOwnProperty(valueField) || typeof descriptor === 'undefined' || typeof descriptor.get !== 'function' || typeof descriptor.set !== 'function') {
    return;
  }
  var get = descriptor.get,
      set = descriptor.set;

  Object.defineProperty(node, valueField, {
    configurable: true,
    get: function () {
      return get.call(this);
    },
    set: function (value) {
      currentValue = '' + value;
      set.call(this, value);
    }
  });
  // We could've passed this the first time
  // but it triggers a bug in IE11 and Edge 14/15.
  // Calling defineProperty() again should be equivalent.
  // https://github.com/facebook/react/issues/11768
  Object.defineProperty(node, valueField, {
    enumerable: descriptor.enumerable
  });

  var tracker = {
    getValue: function () {
      return currentValue;
    },
    setValue: function (value) {
      currentValue = '' + value;
    },
    stopTracking: function () {
      detachTracker(node);
      delete node[valueField];
    }
  };
  return tracker;
}

function track(node) {
  if (getTracker(node)) {
    return;
  }

  // TODO: Once it's just Fiber we can move this to node._wrapperState
  node._valueTracker = trackValueOnNode(node);
}

function updateValueIfChanged(node) {
  if (!node) {
    return false;
  }

  var tracker = getTracker(node);
  // if there is no tracker at this point it's unlikely
  // that trying again will succeed
  if (!tracker) {
    return true;
  }

  var lastValue = tracker.getValue();
  var nextValue = getValueFromNode(node);
  if (nextValue !== lastValue) {
    tracker.setValue(nextValue);
    return true;
  }
  return false;
}

var ReactSharedInternals = React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED;

// Prevent newer renderers from RTE when used with older react package versions.
// Current owner and dispatcher used to share the same ref,
// but PR #14548 split them out to better support the react-debug-tools package.
if (!ReactSharedInternals.hasOwnProperty('ReactCurrentDispatcher')) {
  ReactSharedInternals.ReactCurrentDispatcher = {
    current: null
  };
}
if (!ReactSharedInternals.hasOwnProperty('ReactCurrentBatchConfig')) {
  ReactSharedInternals.ReactCurrentBatchConfig = {
    suspense: null
  };
}

var BEFORE_SLASH_RE = /^(.*)[\\\/]/;

var describeComponentFrame = function (name, source, ownerName) {
  var sourceInfo = '';
  if (source) {
    var path = source.fileName;
    var fileName = path.replace(BEFORE_SLASH_RE, '');
    {
      // In DEV, include code for a common special case:
      // prefer "folder/index.js" instead of just "index.js".
      if (/^index\./.test(fileName)) {
        var match = path.match(BEFORE_SLASH_RE);
        if (match) {
          var pathBeforeSlash = match[1];
          if (pathBeforeSlash) {
            var folderName = pathBeforeSlash.replace(BEFORE_SLASH_RE, '');
            fileName = folderName + '/' + fileName;
          }
        }
      }
    }
    sourceInfo = ' (at ' + fileName + ':' + source.lineNumber + ')';
  } else if (ownerName) {
    sourceInfo = ' (created by ' + ownerName + ')';
  }
  return '\n    in ' + (name || 'Unknown') + sourceInfo;
};

// The Symbol used to tag the ReactElement-like types. If there is no native Symbol
// nor polyfill, then a plain number is used for performance.
var hasSymbol = typeof Symbol === 'function' && Symbol.for;

var REACT_ELEMENT_TYPE = hasSymbol ? Symbol.for('react.element') : 0xeac7;
var REACT_PORTAL_TYPE = hasSymbol ? Symbol.for('react.portal') : 0xeaca;
var REACT_FRAGMENT_TYPE = hasSymbol ? Symbol.for('react.fragment') : 0xeacb;
var REACT_STRICT_MODE_TYPE = hasSymbol ? Symbol.for('react.strict_mode') : 0xeacc;
var REACT_PROFILER_TYPE = hasSymbol ? Symbol.for('react.profiler') : 0xead2;
var REACT_PROVIDER_TYPE = hasSymbol ? Symbol.for('react.provider') : 0xeacd;
var REACT_CONTEXT_TYPE = hasSymbol ? Symbol.for('react.context') : 0xeace;
// TODO: We don't use AsyncMode or ConcurrentMode anymore. They were temporary
// (unstable) APIs that have been removed. Can we remove the symbols?

var REACT_CONCURRENT_MODE_TYPE = hasSymbol ? Symbol.for('react.concurrent_mode') : 0xeacf;
var REACT_FORWARD_REF_TYPE = hasSymbol ? Symbol.for('react.forward_ref') : 0xead0;
var REACT_SUSPENSE_TYPE = hasSymbol ? Symbol.for('react.suspense') : 0xead1;
var REACT_SUSPENSE_LIST_TYPE = hasSymbol ? Symbol.for('react.suspense_list') : 0xead8;
var REACT_MEMO_TYPE = hasSymbol ? Symbol.for('react.memo') : 0xead3;
var REACT_LAZY_TYPE = hasSymbol ? Symbol.for('react.lazy') : 0xead4;
var REACT_FUNDAMENTAL_TYPE = hasSymbol ? Symbol.for('react.fundamental') : 0xead5;
var REACT_RESPONDER_TYPE = hasSymbol ? Symbol.for('react.responder') : 0xead6;

var MAYBE_ITERATOR_SYMBOL = typeof Symbol === 'function' && Symbol.iterator;
var FAUX_ITERATOR_SYMBOL = '@@iterator';

function getIteratorFn(maybeIterable) {
  if (maybeIterable === null || typeof maybeIterable !== 'object') {
    return null;
  }
  var maybeIterator = MAYBE_ITERATOR_SYMBOL && maybeIterable[MAYBE_ITERATOR_SYMBOL] || maybeIterable[FAUX_ITERATOR_SYMBOL];
  if (typeof maybeIterator === 'function') {
    return maybeIterator;
  }
  return null;
}

var Pending = 0;
var Resolved = 1;
var Rejected = 2;

function refineResolvedLazyComponent(lazyComponent) {
  return lazyComponent._status === Resolved ? lazyComponent._result : null;
}

function getWrappedName(outerType, innerType, wrapperName) {
  var functionName = innerType.displayName || innerType.name || '';
  return outerType.displayName || (functionName !== '' ? wrapperName + '(' + functionName + ')' : wrapperName);
}

function getComponentName(type) {
  if (type == null) {
    // Host root, text node or just invalid type.
    return null;
  }
  {
    if (typeof type.tag === 'number') {
      warningWithoutStack$1(false, 'Received an unexpected object in getComponentName(). ' + 'This is likely a bug in React. Please file an issue.');
    }
  }
  if (typeof type === 'function') {
    return type.displayName || type.name || null;
  }
  if (typeof type === 'string') {
    return type;
  }
  switch (type) {
    case REACT_FRAGMENT_TYPE:
      return 'Fragment';
    case REACT_PORTAL_TYPE:
      return 'Portal';
    case REACT_PROFILER_TYPE:
      return 'Profiler';
    case REACT_STRICT_MODE_TYPE:
      return 'StrictMode';
    case REACT_SUSPENSE_TYPE:
      return 'Suspense';
    case REACT_SUSPENSE_LIST_TYPE:
      return 'SuspenseList';
  }
  if (typeof type === 'object') {
    switch (type.$$typeof) {
      case REACT_CONTEXT_TYPE:
        return 'Context.Consumer';
      case REACT_PROVIDER_TYPE:
        return 'Context.Provider';
      case REACT_FORWARD_REF_TYPE:
        return getWrappedName(type, type.render, 'ForwardRef');
      case REACT_MEMO_TYPE:
        return getComponentName(type.type);
      case REACT_LAZY_TYPE:
        {
          var thenable = type;
          var resolvedThenable = refineResolvedLazyComponent(thenable);
          if (resolvedThenable) {
            return getComponentName(resolvedThenable);
          }
          break;
        }
    }
  }
  return null;
}

var ReactDebugCurrentFrame = ReactSharedInternals.ReactDebugCurrentFrame;

function describeFiber(fiber) {
  switch (fiber.tag) {
    case HostRoot:
    case HostPortal:
    case HostText:
    case Fragment:
    case ContextProvider:
    case ContextConsumer:
      return '';
    default:
      var owner = fiber._debugOwner;
      var source = fiber._debugSource;
      var name = getComponentName(fiber.type);
      var ownerName = null;
      if (owner) {
        ownerName = getComponentName(owner.type);
      }
      return describeComponentFrame(name, source, ownerName);
  }
}

function getStackByFiberInDevAndProd(workInProgress) {
  var info = '';
  var node = workInProgress;
  do {
    info += describeFiber(node);
    node = node.return;
  } while (node);
  return info;
}

var current = null;
var phase = null;

function getCurrentFiberOwnerNameInDevOrNull() {
  {
    if (current === null) {
      return null;
    }
    var owner = current._debugOwner;
    if (owner !== null && typeof owner !== 'undefined') {
      return getComponentName(owner.type);
    }
  }
  return null;
}

function getCurrentFiberStackInDev() {
  {
    if (current === null) {
      return '';
    }
    // Safe because if current fiber exists, we are reconciling,
    // and it is guaranteed to be the work-in-progress version.
    return getStackByFiberInDevAndProd(current);
  }
  return '';
}

function resetCurrentFiber() {
  {
    ReactDebugCurrentFrame.getCurrentStack = null;
    current = null;
    phase = null;
  }
}

function setCurrentFiber(fiber) {
  {
    ReactDebugCurrentFrame.getCurrentStack = getCurrentFiberStackInDev;
    current = fiber;
    phase = null;
  }
}

function setCurrentPhase(lifeCyclePhase) {
  {
    phase = lifeCyclePhase;
  }
}

/**
 * Similar to invariant but only logs a warning if the condition is not met.
 * This can be used to log issues in development environments in critical
 * paths. Removing the logging code for production environments will keep the
 * same logic and follow the same code paths.
 */

var warning = warningWithoutStack$1;

{
  warning = function (condition, format) {
    if (condition) {
      return;
    }
    var ReactDebugCurrentFrame = ReactSharedInternals.ReactDebugCurrentFrame;
    var stack = ReactDebugCurrentFrame.getStackAddendum();
    // eslint-disable-next-line react-internal/warning-and-invariant-args

    for (var _len = arguments.length, args = Array(_len > 2 ? _len - 2 : 0), _key = 2; _key < _len; _key++) {
      args[_key - 2] = arguments[_key];
    }

    warningWithoutStack$1.apply(undefined, [false, format + '%s'].concat(args, [stack]));
  };
}

var warning$1 = warning;

// A reserved attribute.
// It is handled by React separately and shouldn't be written to the DOM.
var RESERVED = 0;

// A simple string attribute.
// Attributes that aren't in the whitelist are presumed to have this type.
var STRING = 1;

// A string attribute that accepts booleans in React. In HTML, these are called
// "enumerated" attributes with "true" and "false" as possible values.
// When true, it should be set to a "true" string.
// When false, it should be set to a "false" string.
var BOOLEANISH_STRING = 2;

// A real boolean attribute.
// When true, it should be present (set either to an empty string or its name).
// When false, it should be omitted.
var BOOLEAN = 3;

// An attribute that can be used as a flag as well as with a value.
// When true, it should be present (set either to an empty string or its name).
// When false, it should be omitted.
// For any other value, should be present with that value.
var OVERLOADED_BOOLEAN = 4;

// An attribute that must be numeric or parse as a numeric.
// When falsy, it should be removed.
var NUMERIC = 5;

// An attribute that must be positive numeric or parse as a positive numeric.
// When falsy, it should be removed.
var POSITIVE_NUMERIC = 6;

/* eslint-disable max-len */
var ATTRIBUTE_NAME_START_CHAR = ':A-Z_a-z\\u00C0-\\u00D6\\u00D8-\\u00F6\\u00F8-\\u02FF\\u0370-\\u037D\\u037F-\\u1FFF\\u200C-\\u200D\\u2070-\\u218F\\u2C00-\\u2FEF\\u3001-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFFD';
/* eslint-enable max-len */
var ATTRIBUTE_NAME_CHAR = ATTRIBUTE_NAME_START_CHAR + '\\-.0-9\\u00B7\\u0300-\\u036F\\u203F-\\u2040';


var ROOT_ATTRIBUTE_NAME = 'data-reactroot';
var VALID_ATTRIBUTE_NAME_REGEX = new RegExp('^[' + ATTRIBUTE_NAME_START_CHAR + '][' + ATTRIBUTE_NAME_CHAR + ']*$');

var hasOwnProperty = Object.prototype.hasOwnProperty;
var illegalAttributeNameCache = {};
var validatedAttributeNameCache = {};

function isAttributeNameSafe(attributeName) {
  if (hasOwnProperty.call(validatedAttributeNameCache, attributeName)) {
    return true;
  }
  if (hasOwnProperty.call(illegalAttributeNameCache, attributeName)) {
    return false;
  }
  if (VALID_ATTRIBUTE_NAME_REGEX.test(attributeName)) {
    validatedAttributeNameCache[attributeName] = true;
    return true;
  }
  illegalAttributeNameCache[attributeName] = true;
  {
    warning$1(false, 'Invalid attribute name: `%s`', attributeName);
  }
  return false;
}

function shouldIgnoreAttribute(name, propertyInfo, isCustomComponentTag) {
  if (propertyInfo !== null) {
    return propertyInfo.type === RESERVED;
  }
  if (isCustomComponentTag) {
    return false;
  }
  if (name.length > 2 && (name[0] === 'o' || name[0] === 'O') && (name[1] === 'n' || name[1] === 'N')) {
    return true;
  }
  return false;
}

function shouldRemoveAttributeWithWarning(name, value, propertyInfo, isCustomComponentTag) {
  if (propertyInfo !== null && propertyInfo.type === RESERVED) {
    return false;
  }
  switch (typeof value) {
    case 'function':
    // $FlowIssue symbol is perfectly valid here
    case 'symbol':
      // eslint-disable-line
      return true;
    case 'boolean':
      {
        if (isCustomComponentTag) {
          return false;
        }
        if (propertyInfo !== null) {
          return !propertyInfo.acceptsBooleans;
        } else {
          var prefix = name.toLowerCase().slice(0, 5);
          return prefix !== 'data-' && prefix !== 'aria-';
        }
      }
    default:
      return false;
  }
}

function shouldRemoveAttribute(name, value, propertyInfo, isCustomComponentTag) {
  if (value === null || typeof value === 'undefined') {
    return true;
  }
  if (shouldRemoveAttributeWithWarning(name, value, propertyInfo, isCustomComponentTag)) {
    return true;
  }
  if (isCustomComponentTag) {
    return false;
  }
  if (propertyInfo !== null) {
    switch (propertyInfo.type) {
      case BOOLEAN:
        return !value;
      case OVERLOADED_BOOLEAN:
        return value === false;
      case NUMERIC:
        return isNaN(value);
      case POSITIVE_NUMERIC:
        return isNaN(value) || value < 1;
    }
  }
  return false;
}

function getPropertyInfo(name) {
  return properties.hasOwnProperty(name) ? properties[name] : null;
}

function PropertyInfoRecord(name, type, mustUseProperty, attributeName, attributeNamespace, sanitizeURL) {
  this.acceptsBooleans = type === BOOLEANISH_STRING || type === BOOLEAN || type === OVERLOADED_BOOLEAN;
  this.attributeName = attributeName;
  this.attributeNamespace = attributeNamespace;
  this.mustUseProperty = mustUseProperty;
  this.propertyName = name;
  this.type = type;
  this.sanitizeURL = sanitizeURL;
}

// When adding attributes to this list, be sure to also add them to
// the `possibleStandardNames` module to ensure casing and incorrect
// name warnings.
var properties = {};

// These props are reserved by React. They shouldn't be written to the DOM.
['children', 'dangerouslySetInnerHTML',
// TODO: This prevents the assignment of defaultValue to regular
// elements (not just inputs). Now that ReactDOMInput assigns to the
// defaultValue property -- do we need this?
'defaultValue', 'defaultChecked', 'innerHTML', 'suppressContentEditableWarning', 'suppressHydrationWarning', 'style'].forEach(function (name) {
  properties[name] = new PropertyInfoRecord(name, RESERVED, false, // mustUseProperty
  name, // attributeName
  null, // attributeNamespace
  false);
} // sanitizeURL
);

// A few React string attributes have a different name.
// This is a mapping from React prop names to the attribute names.
[['acceptCharset', 'accept-charset'], ['className', 'class'], ['htmlFor', 'for'], ['httpEquiv', 'http-equiv']].forEach(function (_ref) {
  var name = _ref[0],
      attributeName = _ref[1];

  properties[name] = new PropertyInfoRecord(name, STRING, false, // mustUseProperty
  attributeName, // attributeName
  null, // attributeNamespace
  false);
} // sanitizeURL
);

// These are "enumerated" HTML attributes that accept "true" and "false".
// In React, we let users pass `true` and `false` even though technically
// these aren't boolean attributes (they are coerced to strings).
['contentEditable', 'draggable', 'spellCheck', 'value'].forEach(function (name) {
  properties[name] = new PropertyInfoRecord(name, BOOLEANISH_STRING, false, // mustUseProperty
  name.toLowerCase(), // attributeName
  null, // attributeNamespace
  false);
} // sanitizeURL
);

// These are "enumerated" SVG attributes that accept "true" and "false".
// In React, we let users pass `true` and `false` even though technically
// these aren't boolean attributes (they are coerced to strings).
// Since these are SVG attributes, their attribute names are case-sensitive.
['autoReverse', 'externalResourcesRequired', 'focusable', 'preserveAlpha'].forEach(function (name) {
  properties[name] = new PropertyInfoRecord(name, BOOLEANISH_STRING, false, // mustUseProperty
  name, // attributeName
  null, // attributeNamespace
  false);
} // sanitizeURL
);

// These are HTML boolean attributes.
['allowFullScreen', 'async',
// Note: there is a special case that prevents it from being written to the DOM
// on the client side because the browsers are inconsistent. Instead we call focus().
'autoFocus', 'autoPlay', 'controls', 'default', 'defer', 'disabled', 'disablePictureInPicture', 'formNoValidate', 'hidden', 'loop', 'noModule', 'noValidate', 'open', 'playsInline', 'readOnly', 'required', 'reversed', 'scoped', 'seamless',
// Microdata
'itemScope'].forEach(function (name) {
  properties[name] = new PropertyInfoRecord(name, BOOLEAN, false, // mustUseProperty
  name.toLowerCase(), // attributeName
  null, // attributeNamespace
  false);
} // sanitizeURL
);

// These are the few React props that we set as DOM properties
// rather than attributes. These are all booleans.
['checked',
// Note: `option.selected` is not updated if `select.multiple` is
// disabled with `removeAttribute`. We have special logic for handling this.
'multiple', 'muted', 'selected'].forEach(function (name) {
  properties[name] = new PropertyInfoRecord(name, BOOLEAN, true, // mustUseProperty
  name, // attributeName
  null, // attributeNamespace
  false);
} // sanitizeURL
);

// These are HTML attributes that are "overloaded booleans": they behave like
// booleans, but can also accept a string value.
['capture', 'download'].forEach(function (name) {
  properties[name] = new PropertyInfoRecord(name, OVERLOADED_BOOLEAN, false, // mustUseProperty
  name, // attributeName
  null, // attributeNamespace
  false);
} // sanitizeURL
);

// These are HTML attributes that must be positive numbers.
['cols', 'rows', 'size', 'span'].forEach(function (name) {
  properties[name] = new PropertyInfoRecord(name, POSITIVE_NUMERIC, false, // mustUseProperty
  name, // attributeName
  null, // attributeNamespace
  false);
} // sanitizeURL
);

// These are HTML attributes that must be numbers.
['rowSpan', 'start'].forEach(function (name) {
  properties[name] = new PropertyInfoRecord(name, NUMERIC, false, // mustUseProperty
  name.toLowerCase(), // attributeName
  null, // attributeNamespace
  false);
} // sanitizeURL
);

var CAMELIZE = /[\-\:]([a-z])/g;
var capitalize = function (token) {
  return token[1].toUpperCase();
};

// This is a list of all SVG attributes that need special casing, namespacing,
// or boolean value assignment. Regular attributes that just accept strings
// and have the same names are omitted, just like in the HTML whitelist.
// Some of these attributes can be hard to find. This list was created by
// scrapping the MDN documentation.
['accent-height', 'alignment-baseline', 'arabic-form', 'baseline-shift', 'cap-height', 'clip-path', 'clip-rule', 'color-interpolation', 'color-interpolation-filters', 'color-profile', 'color-rendering', 'dominant-baseline', 'enable-background', 'fill-opacity', 'fill-rule', 'flood-color', 'flood-opacity', 'font-family', 'font-size', 'font-size-adjust', 'font-stretch', 'font-style', 'font-variant', 'font-weight', 'glyph-name', 'glyph-orientation-horizontal', 'glyph-orientation-vertical', 'horiz-adv-x', 'horiz-origin-x', 'image-rendering', 'letter-spacing', 'lighting-color', 'marker-end', 'marker-mid', 'marker-start', 'overline-position', 'overline-thickness', 'paint-order', 'panose-1', 'pointer-events', 'rendering-intent', 'shape-rendering', 'stop-color', 'stop-opacity', 'strikethrough-position', 'strikethrough-thickness', 'stroke-dasharray', 'stroke-dashoffset', 'stroke-linecap', 'stroke-linejoin', 'stroke-miterlimit', 'stroke-opacity', 'stroke-width', 'text-anchor', 'text-decoration', 'text-rendering', 'underline-position', 'underline-thickness', 'unicode-bidi', 'unicode-range', 'units-per-em', 'v-alphabetic', 'v-hanging', 'v-ideographic', 'v-mathematical', 'vector-effect', 'vert-adv-y', 'vert-origin-x', 'vert-origin-y', 'word-spacing', 'writing-mode', 'xmlns:xlink', 'x-height'].forEach(function (attributeName) {
  var name = attributeName.replace(CAMELIZE, capitalize);
  properties[name] = new PropertyInfoRecord(name, STRING, false, // mustUseProperty
  attributeName, null, // attributeNamespace
  false);
} // sanitizeURL
);

// String SVG attributes with the xlink namespace.
['xlink:actuate', 'xlink:arcrole', 'xlink:role', 'xlink:show', 'xlink:title', 'xlink:type'].forEach(function (attributeName) {
  var name = attributeName.replace(CAMELIZE, capitalize);
  properties[name] = new PropertyInfoRecord(name, STRING, false, // mustUseProperty
  attributeName, 'http://www.w3.org/1999/xlink', false);
} // sanitizeURL
);

// String SVG attributes with the xml namespace.
['xml:base', 'xml:lang', 'xml:space'].forEach(function (attributeName) {
  var name = attributeName.replace(CAMELIZE, capitalize);
  properties[name] = new PropertyInfoRecord(name, STRING, false, // mustUseProperty
  attributeName, 'http://www.w3.org/XML/1998/namespace', false);
} // sanitizeURL
);

// These attribute exists both in HTML and SVG.
// The attribute name is case-sensitive in SVG so we can't just use
// the React name like we do for attributes that exist only in HTML.
['tabIndex', 'crossOrigin'].forEach(function (attributeName) {
  properties[attributeName] = new PropertyInfoRecord(attributeName, STRING, false, // mustUseProperty
  attributeName.toLowerCase(), // attributeName
  null, // attributeNamespace
  false);
} // sanitizeURL
);

// These attributes accept URLs. These must not allow javascript: URLS.
// These will also need to accept Trusted Types object in the future.
var xlinkHref = 'xlinkHref';
properties[xlinkHref] = new PropertyInfoRecord('xlinkHref', STRING, false, // mustUseProperty
'xlink:href', 'http://www.w3.org/1999/xlink', true);

['src', 'href', 'action', 'formAction'].forEach(function (attributeName) {
  properties[attributeName] = new PropertyInfoRecord(attributeName, STRING, false, // mustUseProperty
  attributeName.toLowerCase(), // attributeName
  null, // attributeNamespace
  true);
} // sanitizeURL
);

var ReactDebugCurrentFrame$1 = null;
{
  ReactDebugCurrentFrame$1 = ReactSharedInternals.ReactDebugCurrentFrame;
}

// A javascript: URL can contain leading C0 control or \u0020 SPACE,
// and any newline or tab are filtered out as if they're not part of the URL.
// https://url.spec.whatwg.org/#url-parsing
// Tab or newline are defined as \r\n\t:
// https://infra.spec.whatwg.org/#ascii-tab-or-newline
// A C0 control is a code point in the range \u0000 NULL to \u001F
// INFORMATION SEPARATOR ONE, inclusive:
// https://infra.spec.whatwg.org/#c0-control-or-space

/* eslint-disable max-len */
var isJavaScriptProtocol = /^[\u0000-\u001F ]*j[\r\n\t]*a[\r\n\t]*v[\r\n\t]*a[\r\n\t]*s[\r\n\t]*c[\r\n\t]*r[\r\n\t]*i[\r\n\t]*p[\r\n\t]*t[\r\n\t]*\:/i;

var didWarn = false;

function sanitizeURL(url) {
  if (disableJavaScriptURLs) {
    (function () {
      if (!!isJavaScriptProtocol.test(url)) {
        {
          throw ReactError(Error('React has blocked a javascript: URL as a security precaution.' + (ReactDebugCurrentFrame$1.getStackAddendum())));
        }
      }
    })();
  } else if (true && !didWarn && isJavaScriptProtocol.test(url)) {
    didWarn = true;
    warning$1(false, 'A future version of React will block javascript: URLs as a security precaution. ' + 'Use event handlers instead if you can. If you need to generate unsafe HTML try ' + 'using dangerouslySetInnerHTML instead. React was passed %s.', JSON.stringify(url));
  }
}

/**
 * Get the value for a property on a node. Only used in DEV for SSR validation.
 * The "expected" argument is used as a hint of what the expected value is.
 * Some properties have multiple equivalent values.
 */
function getValueForProperty(node, name, expected, propertyInfo) {
  {
    if (propertyInfo.mustUseProperty) {
      var propertyName = propertyInfo.propertyName;

      return node[propertyName];
    } else {
      if (!disableJavaScriptURLs && propertyInfo.sanitizeURL) {
        // If we haven't fully disabled javascript: URLs, and if
        // the hydration is successful of a javascript: URL, we
        // still want to warn on the client.
        sanitizeURL('' + expected);
      }

      var attributeName = propertyInfo.attributeName;

      var stringValue = null;

      if (propertyInfo.type === OVERLOADED_BOOLEAN) {
        if (node.hasAttribute(attributeName)) {
          var value = node.getAttribute(attributeName);
          if (value === '') {
            return true;
          }
          if (shouldRemoveAttribute(name, expected, propertyInfo, false)) {
            return value;
          }
          if (value === '' + expected) {
            return expected;
          }
          return value;
        }
      } else if (node.hasAttribute(attributeName)) {
        if (shouldRemoveAttribute(name, expected, propertyInfo, false)) {
          // We had an attribute but shouldn't have had one, so read it
          // for the error message.
          return node.getAttribute(attributeName);
        }
        if (propertyInfo.type === BOOLEAN) {
          // If this was a boolean, it doesn't matter what the value is
          // the fact that we have it is the same as the expected.
          return expected;
        }
        // Even if this property uses a namespace we use getAttribute
        // because we assume its namespaced name is the same as our config.
        // To use getAttributeNS we need the local name which we don't have
        // in our config atm.
        stringValue = node.getAttribute(attributeName);
      }

      if (shouldRemoveAttribute(name, expected, propertyInfo, false)) {
        return stringValue === null ? expected : stringValue;
      } else if (stringValue === '' + expected) {
        return expected;
      } else {
        return stringValue;
      }
    }
  }
}

/**
 * Get the value for a attribute on a node. Only used in DEV for SSR validation.
 * The third argument is used as a hint of what the expected value is. Some
 * attributes have multiple equivalent values.
 */
function getValueForAttribute(node, name, expected) {
  {
    if (!isAttributeNameSafe(name)) {
      return;
    }
    if (!node.hasAttribute(name)) {
      return expected === undefined ? undefined : null;
    }
    var value = node.getAttribute(name);
    if (value === '' + expected) {
      return expected;
    }
    return value;
  }
}

/**
 * Sets the value for a property on a node.
 *
 * @param {DOMElement} node
 * @param {string} name
 * @param {*} value
 */
function setValueForProperty(node, name, value, isCustomComponentTag) {
  var propertyInfo = getPropertyInfo(name);
  if (shouldIgnoreAttribute(name, propertyInfo, isCustomComponentTag)) {
    return;
  }
  if (shouldRemoveAttribute(name, value, propertyInfo, isCustomComponentTag)) {
    value = null;
  }
  // If the prop isn't in the special list, treat it as a simple attribute.
  if (isCustomComponentTag || propertyInfo === null) {
    if (isAttributeNameSafe(name)) {
      var _attributeName = name;
      if (value === null) {
        node.removeAttribute(_attributeName);
      } else {
        node.setAttribute(_attributeName, '' + value);
      }
    }
    return;
  }
  var mustUseProperty = propertyInfo.mustUseProperty;

  if (mustUseProperty) {
    var propertyName = propertyInfo.propertyName;

    if (value === null) {
      var type = propertyInfo.type;

      node[propertyName] = type === BOOLEAN ? false : '';
    } else {
      // Contrary to `setAttribute`, object properties are properly
      // `toString`ed by IE8/9.
      node[propertyName] = value;
    }
    return;
  }
  // The rest are treated as attributes with special cases.
  var attributeName = propertyInfo.attributeName,
      attributeNamespace = propertyInfo.attributeNamespace;

  if (value === null) {
    node.removeAttribute(attributeName);
  } else {
    var _type = propertyInfo.type;

    var attributeValue = void 0;
    if (_type === BOOLEAN || _type === OVERLOADED_BOOLEAN && value === true) {
      attributeValue = '';
    } else {
      // `setAttribute` with objects becomes only `[object]` in IE8/9,
      // ('' + value) makes it output the correct toString()-value.
      attributeValue = '' + value;
      if (propertyInfo.sanitizeURL) {
        sanitizeURL(attributeValue);
      }
    }
    if (attributeNamespace) {
      node.setAttributeNS(attributeNamespace, attributeName, attributeValue);
    } else {
      node.setAttribute(attributeName, attributeValue);
    }
  }
}

// Flow does not allow string concatenation of most non-string types. To work
// around this limitation, we use an opaque type that can only be obtained by
// passing the value through getToStringValue first.
function toString(value) {
  return '' + value;
}

function getToStringValue(value) {
  switch (typeof value) {
    case 'boolean':
    case 'number':
    case 'object':
    case 'string':
    case 'undefined':
      return value;
    default:
      // function, symbol are assigned as empty strings
      return '';
  }
}

var ReactDebugCurrentFrame$2 = null;

var ReactControlledValuePropTypes = {
  checkPropTypes: null
};

{
  ReactDebugCurrentFrame$2 = ReactSharedInternals.ReactDebugCurrentFrame;

  var hasReadOnlyValue = {
    button: true,
    checkbox: true,
    image: true,
    hidden: true,
    radio: true,
    reset: true,
    submit: true
  };

  var propTypes = {
    value: function (props, propName, componentName) {
      if (hasReadOnlyValue[props.type] || props.onChange || props.readOnly || props.disabled || props[propName] == null || enableFlareAPI && props.listeners) {
        return null;
      }
      return new Error('You provided a `value` prop to a form field without an ' + '`onChange` handler. This will render a read-only field. If ' + 'the field should be mutable use `defaultValue`. Otherwise, ' + 'set either `onChange` or `readOnly`.');
    },
    checked: function (props, propName, componentName) {
      if (props.onChange || props.readOnly || props.disabled || props[propName] == null || enableFlareAPI && props.listeners) {
        return null;
      }
      return new Error('You provided a `checked` prop to a form field without an ' + '`onChange` handler. This will render a read-only field. If ' + 'the field should be mutable use `defaultChecked`. Otherwise, ' + 'set either `onChange` or `readOnly`.');
    }
  };

  /**
   * Provide a linked `value` attribute for controlled forms. You should not use
   * this outside of the ReactDOM controlled form components.
   */
  ReactControlledValuePropTypes.checkPropTypes = function (tagName, props) {
    checkPropTypes(propTypes, props, 'prop', tagName, ReactDebugCurrentFrame$2.getStackAddendum);
  };
}

// TODO: direct imports like some-package/src/* are bad. Fix me.
var didWarnValueDefaultValue = false;
var didWarnCheckedDefaultChecked = false;
var didWarnControlledToUncontrolled = false;
var didWarnUncontrolledToControlled = false;

function isControlled(props) {
  var usesChecked = props.type === 'checkbox' || props.type === 'radio';
  return usesChecked ? props.checked != null : props.value != null;
}

/**
 * Implements an <input> host component that allows setting these optional
 * props: `checked`, `value`, `defaultChecked`, and `defaultValue`.
 *
 * If `checked` or `value` are not supplied (or null/undefined), user actions
 * that affect the checked state or value will trigger updates to the element.
 *
 * If they are supplied (and not null/undefined), the rendered element will not
 * trigger updates to the element. Instead, the props must change in order for
 * the rendered element to be updated.
 *
 * The rendered element will be initialized as unchecked (or `defaultChecked`)
 * with an empty value (or `defaultValue`).
 *
 * See http://www.w3.org/TR/2012/WD-html5-20121025/the-input-element.html
 */

function getHostProps(element, props) {
  var node = element;
  var checked = props.checked;

  var hostProps = _assign({}, props, {
    defaultChecked: undefined,
    defaultValue: undefined,
    value: undefined,
    checked: checked != null ? checked : node._wrapperState.initialChecked
  });

  return hostProps;
}

function initWrapperState(element, props) {
  {
    ReactControlledValuePropTypes.checkPropTypes('input', props);

    if (props.checked !== undefined && props.defaultChecked !== undefined && !didWarnCheckedDefaultChecked) {
      warning$1(false, '%s contains an input of type %s with both checked and defaultChecked props. ' + 'Input elements must be either controlled or uncontrolled ' + '(specify either the checked prop, or the defaultChecked prop, but not ' + 'both). Decide between using a controlled or uncontrolled input ' + 'element and remove one of these props. More info: ' + 'https://fb.me/react-controlled-components', getCurrentFiberOwnerNameInDevOrNull() || 'A component', props.type);
      didWarnCheckedDefaultChecked = true;
    }
    if (props.value !== undefined && props.defaultValue !== undefined && !didWarnValueDefaultValue) {
      warning$1(false, '%s contains an input of type %s with both value and defaultValue props. ' + 'Input elements must be either controlled or uncontrolled ' + '(specify either the value prop, or the defaultValue prop, but not ' + 'both). Decide between using a controlled or uncontrolled input ' + 'element and remove one of these props. More info: ' + 'https://fb.me/react-controlled-components', getCurrentFiberOwnerNameInDevOrNull() || 'A component', props.type);
      didWarnValueDefaultValue = true;
    }
  }

  var node = element;
  var defaultValue = props.defaultValue == null ? '' : props.defaultValue;

  node._wrapperState = {
    initialChecked: props.checked != null ? props.checked : props.defaultChecked,
    initialValue: getToStringValue(props.value != null ? props.value : defaultValue),
    controlled: isControlled(props)
  };
}

function updateChecked(element, props) {
  var node = element;
  var checked = props.checked;
  if (checked != null) {
    setValueForProperty(node, 'checked', checked, false);
  }
}

function updateWrapper(element, props) {
  var node = element;
  {
    var _controlled = isControlled(props);

    if (!node._wrapperState.controlled && _controlled && !didWarnUncontrolledToControlled) {
      warning$1(false, 'A component is changing an uncontrolled input of type %s to be controlled. ' + 'Input elements should not switch from uncontrolled to controlled (or vice versa). ' + 'Decide between using a controlled or uncontrolled input ' + 'element for the lifetime of the component. More info: https://fb.me/react-controlled-components', props.type);
      didWarnUncontrolledToControlled = true;
    }
    if (node._wrapperState.controlled && !_controlled && !didWarnControlledToUncontrolled) {
      warning$1(false, 'A component is changing a controlled input of type %s to be uncontrolled. ' + 'Input elements should not switch from controlled to uncontrolled (or vice versa). ' + 'Decide between using a controlled or uncontrolled input ' + 'element for the lifetime of the component. More info: https://fb.me/react-controlled-components', props.type);
      didWarnControlledToUncontrolled = true;
    }
  }

  updateChecked(element, props);

  var value = getToStringValue(props.value);
  var type = props.type;

  if (value != null) {
    if (type === 'number') {
      if (value === 0 && node.value === '' ||
      // We explicitly want to coerce to number here if possible.
      // eslint-disable-next-line
      node.value != value) {
        node.value = toString(value);
      }
    } else if (node.value !== toString(value)) {
      node.value = toString(value);
    }
  } else if (type === 'submit' || type === 'reset') {
    // Submit/reset inputs need the attribute removed completely to avoid
    // blank-text buttons.
    node.removeAttribute('value');
    return;
  }

  if (disableInputAttributeSyncing) {
    // When not syncing the value attribute, React only assigns a new value
    // whenever the defaultValue React prop has changed. When not present,
    // React does nothing
    if (props.hasOwnProperty('defaultValue')) {
      setDefaultValue(node, props.type, getToStringValue(props.defaultValue));
    }
  } else {
    // When syncing the value attribute, the value comes from a cascade of
    // properties:
    //  1. The value React property
    //  2. The defaultValue React property
    //  3. Otherwise there should be no change
    if (props.hasOwnProperty('value')) {
      setDefaultValue(node, props.type, value);
    } else if (props.hasOwnProperty('defaultValue')) {
      setDefaultValue(node, props.type, getToStringValue(props.defaultValue));
    }
  }

  if (disableInputAttributeSyncing) {
    // When not syncing the checked attribute, the attribute is directly
    // controllable from the defaultValue React property. It needs to be
    // updated as new props come in.
    if (props.defaultChecked == null) {
      node.removeAttribute('checked');
    } else {
      node.defaultChecked = !!props.defaultChecked;
    }
  } else {
    // When syncing the checked attribute, it only changes when it needs
    // to be removed, such as transitioning from a checkbox into a text input
    if (props.checked == null && props.defaultChecked != null) {
      node.defaultChecked = !!props.defaultChecked;
    }
  }
}

function postMountWrapper(element, props, isHydrating) {
  var node = element;

  // Do not assign value if it is already set. This prevents user text input
  // from being lost during SSR hydration.
  if (props.hasOwnProperty('value') || props.hasOwnProperty('defaultValue')) {
    var type = props.type;
    var isButton = type === 'submit' || type === 'reset';

    // Avoid setting value attribute on submit/reset inputs as it overrides the
    // default value provided by the browser. See: #12872
    if (isButton && (props.value === undefined || props.value === null)) {
      return;
    }

    var _initialValue = toString(node._wrapperState.initialValue);

    // Do not assign value if it is already set. This prevents user text input
    // from being lost during SSR hydration.
    if (!isHydrating) {
      if (disableInputAttributeSyncing) {
        var value = getToStringValue(props.value);

        // When not syncing the value attribute, the value property points
        // directly to the React prop. Only assign it if it exists.
        if (value != null) {
          // Always assign on buttons so that it is possible to assign an
          // empty string to clear button text.
          //
          // Otherwise, do not re-assign the value property if is empty. This
          // potentially avoids a DOM write and prevents Firefox (~60.0.1) from
          // prematurely marking required inputs as invalid. Equality is compared
          // to the current value in case the browser provided value is not an
          // empty string.
          if (isButton || value !== node.value) {
            node.value = toString(value);
          }
        }
      } else {
        // When syncing the value attribute, the value property should use
        // the wrapperState._initialValue property. This uses:
        //
        //   1. The value React property when present
        //   2. The defaultValue React property when present
        //   3. An empty string
        if (_initialValue !== node.value) {
          node.value = _initialValue;
        }
      }
    }

    if (disableInputAttributeSyncing) {
      // When not syncing the value attribute, assign the value attribute
      // directly from the defaultValue React property (when present)
      var defaultValue = getToStringValue(props.defaultValue);
      if (defaultValue != null) {
        node.defaultValue = toString(defaultValue);
      }
    } else {
      // Otherwise, the value attribute is synchronized to the property,
      // so we assign defaultValue to the same thing as the value property
      // assignment step above.
      node.defaultValue = _initialValue;
    }
  }

  // Normally, we'd just do `node.checked = node.checked` upon initial mount, less this bug
  // this is needed to work around a chrome bug where setting defaultChecked
  // will sometimes influence the value of checked (even after detachment).
  // Reference: https://bugs.chromium.org/p/chromium/issues/detail?id=608416
  // We need to temporarily unset name to avoid disrupting radio button groups.
  var name = node.name;
  if (name !== '') {
    node.name = '';
  }

  if (disableInputAttributeSyncing) {
    // When not syncing the checked attribute, the checked property
    // never gets assigned. It must be manually set. We don't want
    // to do this when hydrating so that existing user input isn't
    // modified
    if (!isHydrating) {
      updateChecked(element, props);
    }

    // Only assign the checked attribute if it is defined. This saves
    // a DOM write when controlling the checked attribute isn't needed
    // (text inputs, submit/reset)
    if (props.hasOwnProperty('defaultChecked')) {
      node.defaultChecked = !node.defaultChecked;
      node.defaultChecked = !!props.defaultChecked;
    }
  } else {
    // When syncing the checked attribute, both the checked property and
    // attribute are assigned at the same time using defaultChecked. This uses:
    //
    //   1. The checked React property when present
    //   2. The defaultChecked React property when present
    //   3. Otherwise, false
    node.defaultChecked = !node.defaultChecked;
    node.defaultChecked = !!node._wrapperState.initialChecked;
  }

  if (name !== '') {
    node.name = name;
  }
}

function restoreControlledState(element, props) {
  var node = element;
  updateWrapper(node, props);
  updateNamedCousins(node, props);
}

function updateNamedCousins(rootNode, props) {
  var name = props.name;
  if (props.type === 'radio' && name != null) {
    var queryRoot = rootNode;

    while (queryRoot.parentNode) {
      queryRoot = queryRoot.parentNode;
    }

    // If `rootNode.form` was non-null, then we could try `form.elements`,
    // but that sometimes behaves strangely in IE8. We could also try using
    // `form.getElementsByName`, but that will only return direct children
    // and won't include inputs that use the HTML5 `form=` attribute. Since
    // the input might not even be in a form. It might not even be in the
    // document. Let's just use the local `querySelectorAll` to ensure we don't
    // miss anything.
    var group = queryRoot.querySelectorAll('input[name=' + JSON.stringify('' + name) + '][type="radio"]');

    for (var i = 0; i < group.length; i++) {
      var otherNode = group[i];
      if (otherNode === rootNode || otherNode.form !== rootNode.form) {
        continue;
      }
      // This will throw if radio buttons rendered by different copies of React
      // and the same name are rendered into the same form (same as #1939).
      // That's probably okay; we don't support it just as we don't support
      // mixing React radio buttons with non-React ones.
      var otherProps = getFiberCurrentPropsFromNode$1(otherNode);
      (function () {
        if (!otherProps) {
          {
            throw ReactError(Error('ReactDOMInput: Mixing React and non-React radio inputs with the same `name` is not supported.'));
          }
        }
      })();

      // We need update the tracked value on the named cousin since the value
      // was changed but the input saw no event or value set
      updateValueIfChanged(otherNode);

      // If this is a controlled radio button group, forcing the input that
      // was previously checked to update will cause it to be come re-checked
      // as appropriate.
      updateWrapper(otherNode, otherProps);
    }
  }
}

// In Chrome, assigning defaultValue to certain input types triggers input validation.
// For number inputs, the display value loses trailing decimal points. For email inputs,
// Chrome raises "The specified value <x> is not a valid email address".
//
// Here we check to see if the defaultValue has actually changed, avoiding these problems
// when the user is inputting text
//
// https://github.com/facebook/react/issues/7253
function setDefaultValue(node, type, value) {
  if (
  // Focused number inputs synchronize on blur. See ChangeEventPlugin.js
  type !== 'number' || node.ownerDocument.activeElement !== node) {
    if (value == null) {
      node.defaultValue = toString(node._wrapperState.initialValue);
    } else if (node.defaultValue !== toString(value)) {
      node.defaultValue = toString(value);
    }
  }
}

var eventTypes$1 = {
  change: {
    phasedRegistrationNames: {
      bubbled: 'onChange',
      captured: 'onChangeCapture'
    },
    dependencies: [TOP_BLUR, TOP_CHANGE, TOP_CLICK, TOP_FOCUS, TOP_INPUT, TOP_KEY_DOWN, TOP_KEY_UP, TOP_SELECTION_CHANGE]
  }
};

function createAndAccumulateChangeEvent(inst, nativeEvent, target) {
  var event = SyntheticEvent.getPooled(eventTypes$1.change, inst, nativeEvent, target);
  event.type = 'change';
  // Flag this event loop as needing state restore.
  enqueueStateRestore(target);
  accumulateTwoPhaseDispatches(event);
  return event;
}
/**
 * For IE shims
 */
var activeElement = null;
var activeElementInst = null;

/**
 * SECTION: handle `change` event
 */
function shouldUseChangeEvent(elem) {
  var nodeName = elem.nodeName && elem.nodeName.toLowerCase();
  return nodeName === 'select' || nodeName === 'input' && elem.type === 'file';
}

function manualDispatchChangeEvent(nativeEvent) {
  var event = createAndAccumulateChangeEvent(activeElementInst, nativeEvent, getEventTarget(nativeEvent));

  // If change and propertychange bubbled, we'd just bind to it like all the
  // other events and have it go through ReactBrowserEventEmitter. Since it
  // doesn't, we manually listen for the events and so we have to enqueue and
  // process the abstract event manually.
  //
  // Batching is necessary here in order to ensure that all event handlers run
  // before the next rerender (including event handlers attached to ancestor
  // elements instead of directly on the input). Without this, controlled
  // components don't work properly in conjunction with event bubbling because
  // the component is rerendered and the value reverted before all the event
  // handlers can run. See https://github.com/facebook/react/issues/708.
  batchedUpdates(runEventInBatch, event);
}

function runEventInBatch(event) {
  runEventsInBatch(event);
}

function getInstIfValueChanged(targetInst) {
  var targetNode = getNodeFromInstance$1(targetInst);
  if (updateValueIfChanged(targetNode)) {
    return targetInst;
  }
}

function getTargetInstForChangeEvent(topLevelType, targetInst) {
  if (topLevelType === TOP_CHANGE) {
    return targetInst;
  }
}

/**
 * SECTION: handle `input` event
 */
var isInputEventSupported = false;
if (canUseDOM) {
  // IE9 claims to support the input event but fails to trigger it when
  // deleting text, so we ignore its input events.
  isInputEventSupported = isEventSupported('input') && (!document.documentMode || document.documentMode > 9);
}

/**
 * (For IE <=9) Starts tracking propertychange events on the passed-in element
 * and override the value property so that we can distinguish user events from
 * value changes in JS.
 */
function startWatchingForValueChange(target, targetInst) {
  activeElement = target;
  activeElementInst = targetInst;
  activeElement.attachEvent('onpropertychange', handlePropertyChange);
}

/**
 * (For IE <=9) Removes the event listeners from the currently-tracked element,
 * if any exists.
 */
function stopWatchingForValueChange() {
  if (!activeElement) {
    return;
  }
  activeElement.detachEvent('onpropertychange', handlePropertyChange);
  activeElement = null;
  activeElementInst = null;
}

/**
 * (For IE <=9) Handles a propertychange event, sending a `change` event if
 * the value of the active element has changed.
 */
function handlePropertyChange(nativeEvent) {
  if (nativeEvent.propertyName !== 'value') {
    return;
  }
  if (getInstIfValueChanged(activeElementInst)) {
    manualDispatchChangeEvent(nativeEvent);
  }
}

function handleEventsForInputEventPolyfill(topLevelType, target, targetInst) {
  if (topLevelType === TOP_FOCUS) {
    // In IE9, propertychange fires for most input events but is buggy and
    // doesn't fire when text is deleted, but conveniently, selectionchange
    // appears to fire in all of the remaining cases so we catch those and
    // forward the event if the value has changed
    // In either case, we don't want to call the event handler if the value
    // is changed from JS so we redefine a setter for `.value` that updates
    // our activeElementValue variable, allowing us to ignore those changes
    //
    // stopWatching() should be a noop here but we call it just in case we
    // missed a blur event somehow.
    stopWatchingForValueChange();
    startWatchingForValueChange(target, targetInst);
  } else if (topLevelType === TOP_BLUR) {
    stopWatchingForValueChange();
  }
}

// For IE8 and IE9.
function getTargetInstForInputEventPolyfill(topLevelType, targetInst) {
  if (topLevelType === TOP_SELECTION_CHANGE || topLevelType === TOP_KEY_UP || topLevelType === TOP_KEY_DOWN) {
    // On the selectionchange event, the target is just document which isn't
    // helpful for us so just check activeElement instead.
    //
    // 99% of the time, keydown and keyup aren't necessary. IE8 fails to fire
    // propertychange on the first input event after setting `value` from a
    // script and fires only keydown, keypress, keyup. Catching keyup usually
    // gets it and catching keydown lets us fire an event for the first
    // keystroke if user does a key repeat (it'll be a little delayed: right
    // before the second keystroke). Other input methods (e.g., paste) seem to
    // fire selectionchange normally.
    return getInstIfValueChanged(activeElementInst);
  }
}

/**
 * SECTION: handle `click` event
 */
function shouldUseClickEvent(elem) {
  // Use the `click` event to detect changes to checkbox and radio inputs.
  // This approach works across all browsers, whereas `change` does not fire
  // until `blur` in IE8.
  var nodeName = elem.nodeName;
  return nodeName && nodeName.toLowerCase() === 'input' && (elem.type === 'checkbox' || elem.type === 'radio');
}

function getTargetInstForClickEvent(topLevelType, targetInst) {
  if (topLevelType === TOP_CLICK) {
    return getInstIfValueChanged(targetInst);
  }
}

function getTargetInstForInputOrChangeEvent(topLevelType, targetInst) {
  if (topLevelType === TOP_INPUT || topLevelType === TOP_CHANGE) {
    return getInstIfValueChanged(targetInst);
  }
}

function handleControlledInputBlur(node) {
  var state = node._wrapperState;

  if (!state || !state.controlled || node.type !== 'number') {
    return;
  }

  if (!disableInputAttributeSyncing) {
    // If controlled, assign the value attribute to the current value on blur
    setDefaultValue(node, 'number', node.value);
  }
}

/**
 * This plugin creates an `onChange` event that normalizes change events
 * across form elements. This event fires at a time when it's possible to
 * change the element's value without seeing a flicker.
 *
 * Supported elements are:
 * - input (see `isTextInputElement`)
 * - textarea
 * - select
 */
var ChangeEventPlugin = {
  eventTypes: eventTypes$1,

  _isInputEventSupported: isInputEventSupported,

  extractEvents: function (topLevelType, targetInst, nativeEvent, nativeEventTarget) {
    var targetNode = targetInst ? getNodeFromInstance$1(targetInst) : window;

    var getTargetInstFunc = void 0,
        handleEventFunc = void 0;
    if (shouldUseChangeEvent(targetNode)) {
      getTargetInstFunc = getTargetInstForChangeEvent;
    } else if (isTextInputElement(targetNode)) {
      if (isInputEventSupported) {
        getTargetInstFunc = getTargetInstForInputOrChangeEvent;
      } else {
        getTargetInstFunc = getTargetInstForInputEventPolyfill;
        handleEventFunc = handleEventsForInputEventPolyfill;
      }
    } else if (shouldUseClickEvent(targetNode)) {
      getTargetInstFunc = getTargetInstForClickEvent;
    }

    if (getTargetInstFunc) {
      var inst = getTargetInstFunc(topLevelType, targetInst);
      if (inst) {
        var event = createAndAccumulateChangeEvent(inst, nativeEvent, nativeEventTarget);
        return event;
      }
    }

    if (handleEventFunc) {
      handleEventFunc(topLevelType, targetNode, targetInst);
    }

    // When blurring, set the value attribute for number inputs
    if (topLevelType === TOP_BLUR) {
      handleControlledInputBlur(targetNode);
    }
  }
};

/**
 * Module that is injectable into `EventPluginHub`, that specifies a
 * deterministic ordering of `EventPlugin`s. A convenient way to reason about
 * plugins, without having to package every one of them. This is better than
 * having plugins be ordered in the same order that they are injected because
 * that ordering would be influenced by the packaging order.
 * `ResponderEventPlugin` must occur before `SimpleEventPlugin` so that
 * preventing default on events is convenient in `SimpleEventPlugin` handlers.
 */
var DOMEventPluginOrder = ['ResponderEventPlugin', 'SimpleEventPlugin', 'EnterLeaveEventPlugin', 'ChangeEventPlugin', 'SelectEventPlugin', 'BeforeInputEventPlugin'];

var SyntheticUIEvent = SyntheticEvent.extend({
  view: null,
  detail: null
});

var modifierKeyToProp = {
  Alt: 'altKey',
  Control: 'ctrlKey',
  Meta: 'metaKey',
  Shift: 'shiftKey'
};

// Older browsers (Safari <= 10, iOS Safari <= 10.2) do not support
// getModifierState. If getModifierState is not supported, we map it to a set of
// modifier keys exposed by the event. In this case, Lock-keys are not supported.
/**
 * Translation from modifier key to the associated property in the event.
 * @see http://www.w3.org/TR/DOM-Level-3-Events/#keys-Modifiers
 */

function modifierStateGetter(keyArg) {
  var syntheticEvent = this;
  var nativeEvent = syntheticEvent.nativeEvent;
  if (nativeEvent.getModifierState) {
    return nativeEvent.getModifierState(keyArg);
  }
  var keyProp = modifierKeyToProp[keyArg];
  return keyProp ? !!nativeEvent[keyProp] : false;
}

function getEventModifierState(nativeEvent) {
  return modifierStateGetter;
}

var previousScreenX = 0;
var previousScreenY = 0;
// Use flags to signal movementX/Y has already been set
var isMovementXSet = false;
var isMovementYSet = false;

/**
 * @interface MouseEvent
 * @see http://www.w3.org/TR/DOM-Level-3-Events/
 */
var SyntheticMouseEvent = SyntheticUIEvent.extend({
  screenX: null,
  screenY: null,
  clientX: null,
  clientY: null,
  pageX: null,
  pageY: null,
  ctrlKey: null,
  shiftKey: null,
  altKey: null,
  metaKey: null,
  getModifierState: getEventModifierState,
  button: null,
  buttons: null,
  relatedTarget: function (event) {
    return event.relatedTarget || (event.fromElement === event.srcElement ? event.toElement : event.fromElement);
  },
  movementX: function (event) {
    if ('movementX' in event) {
      return event.movementX;
    }

    var screenX = previousScreenX;
    previousScreenX = event.screenX;

    if (!isMovementXSet) {
      isMovementXSet = true;
      return 0;
    }

    return event.type === 'mousemove' ? event.screenX - screenX : 0;
  },
  movementY: function (event) {
    if ('movementY' in event) {
      return event.movementY;
    }

    var screenY = previousScreenY;
    previousScreenY = event.screenY;

    if (!isMovementYSet) {
      isMovementYSet = true;
      return 0;
    }

    return event.type === 'mousemove' ? event.screenY - screenY : 0;
  }
});

/**
 * @interface PointerEvent
 * @see http://www.w3.org/TR/pointerevents/
 */
var SyntheticPointerEvent = SyntheticMouseEvent.extend({
  pointerId: null,
  width: null,
  height: null,
  pressure: null,
  tangentialPressure: null,
  tiltX: null,
  tiltY: null,
  twist: null,
  pointerType: null,
  isPrimary: null
});

var eventTypes$2 = {
  mouseEnter: {
    registrationName: 'onMouseEnter',
    dependencies: [TOP_MOUSE_OUT, TOP_MOUSE_OVER]
  },
  mouseLeave: {
    registrationName: 'onMouseLeave',
    dependencies: [TOP_MOUSE_OUT, TOP_MOUSE_OVER]
  },
  pointerEnter: {
    registrationName: 'onPointerEnter',
    dependencies: [TOP_POINTER_OUT, TOP_POINTER_OVER]
  },
  pointerLeave: {
    registrationName: 'onPointerLeave',
    dependencies: [TOP_POINTER_OUT, TOP_POINTER_OVER]
  }
};

var EnterLeaveEventPlugin = {
  eventTypes: eventTypes$2,

  /**
   * For almost every interaction we care about, there will be both a top-level
   * `mouseover` and `mouseout` event that occurs. Only use `mouseout` so that
   * we do not extract duplicate events. However, moving the mouse into the
   * browser from outside will not fire a `mouseout` event. In this case, we use
   * the `mouseover` top-level event.
   */
  extractEvents: function (topLevelType, targetInst, nativeEvent, nativeEventTarget) {
    var isOverEvent = topLevelType === TOP_MOUSE_OVER || topLevelType === TOP_POINTER_OVER;
    var isOutEvent = topLevelType === TOP_MOUSE_OUT || topLevelType === TOP_POINTER_OUT;

    if (isOverEvent && (nativeEvent.relatedTarget || nativeEvent.fromElement)) {
      return null;
    }

    if (!isOutEvent && !isOverEvent) {
      // Must not be a mouse or pointer in or out - ignoring.
      return null;
    }

    var win = void 0;
    if (nativeEventTarget.window === nativeEventTarget) {
      // `nativeEventTarget` is probably a window object.
      win = nativeEventTarget;
    } else {
      // TODO: Figure out why `ownerDocument` is sometimes undefined in IE8.
      var doc = nativeEventTarget.ownerDocument;
      if (doc) {
        win = doc.defaultView || doc.parentWindow;
      } else {
        win = window;
      }
    }

    var from = void 0;
    var to = void 0;
    if (isOutEvent) {
      from = targetInst;
      var related = nativeEvent.relatedTarget || nativeEvent.toElement;
      to = related ? getClosestInstanceFromNode(related) : null;
    } else {
      // Moving to a node from outside the window.
      from = null;
      to = targetInst;
    }

    if (from === to) {
      // Nothing pertains to our managed components.
      return null;
    }

    var eventInterface = void 0,
        leaveEventType = void 0,
        enterEventType = void 0,
        eventTypePrefix = void 0;

    if (topLevelType === TOP_MOUSE_OUT || topLevelType === TOP_MOUSE_OVER) {
      eventInterface = SyntheticMouseEvent;
      leaveEventType = eventTypes$2.mouseLeave;
      enterEventType = eventTypes$2.mouseEnter;
      eventTypePrefix = 'mouse';
    } else if (topLevelType === TOP_POINTER_OUT || topLevelType === TOP_POINTER_OVER) {
      eventInterface = SyntheticPointerEvent;
      leaveEventType = eventTypes$2.pointerLeave;
      enterEventType = eventTypes$2.pointerEnter;
      eventTypePrefix = 'pointer';
    }

    var fromNode = from == null ? win : getNodeFromInstance$1(from);
    var toNode = to == null ? win : getNodeFromInstance$1(to);

    var leave = eventInterface.getPooled(leaveEventType, from, nativeEvent, nativeEventTarget);
    leave.type = eventTypePrefix + 'leave';
    leave.target = fromNode;
    leave.relatedTarget = toNode;

    var enter = eventInterface.getPooled(enterEventType, to, nativeEvent, nativeEventTarget);
    enter.type = eventTypePrefix + 'enter';
    enter.target = toNode;
    enter.relatedTarget = fromNode;

    accumulateEnterLeaveDispatches(leave, enter, from, to);

    return [leave, enter];
  }
};

/**
 * inlined Object.is polyfill to avoid requiring consumers ship their own
 * https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is
 */
function is(x, y) {
  return x === y && (x !== 0 || 1 / x === 1 / y) || x !== x && y !== y // eslint-disable-line no-self-compare
  ;
}

var hasOwnProperty$1 = Object.prototype.hasOwnProperty;

/**
 * Performs equality by iterating through keys on an object and returning false
 * when any key has values which are not strictly equal between the arguments.
 * Returns true when the values of all keys are strictly equal.
 */
function shallowEqual(objA, objB) {
  if (is(objA, objB)) {
    return true;
  }

  if (typeof objA !== 'object' || objA === null || typeof objB !== 'object' || objB === null) {
    return false;
  }

  var keysA = Object.keys(objA);
  var keysB = Object.keys(objB);

  if (keysA.length !== keysB.length) {
    return false;
  }

  // Test for A's keys different from B.
  for (var i = 0; i < keysA.length; i++) {
    if (!hasOwnProperty$1.call(objB, keysA[i]) || !is(objA[keysA[i]], objB[keysA[i]])) {
      return false;
    }
  }

  return true;
}

var PLUGIN_EVENT_SYSTEM = 1;
var RESPONDER_EVENT_SYSTEM = 1 << 1;
var IS_PASSIVE = 1 << 2;
var IS_ACTIVE = 1 << 3;
var PASSIVE_NOT_SUPPORTED = 1 << 4;

function createResponderListener(responder, props) {
  var eventResponderListener = {
    responder: responder,
    props: props
  };
  {
    Object.freeze(eventResponderListener);
  }
  return eventResponderListener;
}

function isFiberSuspenseAndTimedOut(fiber) {
  return fiber.tag === SuspenseComponent && fiber.memoizedState !== null;
}

function getSuspenseFallbackChild(fiber) {
  return fiber.child.sibling.child;
}





function createResponderInstance(responder, responderProps, responderState, target, fiber) {
  return {
    fiber: fiber,
    props: responderProps,
    responder: responder,
    rootEventTypes: null,
    state: responderState,
    target: target
  };
}

var DiscreteEvent = 0;
var UserBlockingEvent = 1;
var ContinuousEvent = 2;

// Intentionally not named imports because Rollup would use dynamic dispatch for
// CommonJS interop named imports.
var UserBlockingPriority$1 = Scheduler.unstable_UserBlockingPriority;
var runWithPriority$1 = Scheduler.unstable_runWithPriority;


var listenToResponderEventTypesImpl = void 0;

function setListenToResponderEventTypes(_listenToResponderEventTypesImpl) {
  listenToResponderEventTypesImpl = _listenToResponderEventTypesImpl;
}

var activeTimeouts = new Map();
var rootEventTypesToEventResponderInstances = new Map();
var ownershipChangeListeners = new Set();

var globalOwner = null;

var currentTimeStamp = 0;
var currentTimers = new Map();
var currentInstance = null;
var currentEventQueue = null;
var currentEventQueuePriority = ContinuousEvent;
var currentTimerIDCounter = 0;
var currentDocument = null;

var eventResponderContext = {
  dispatchEvent: function (eventValue, eventListener, eventPriority) {
    validateResponderContext();
    validateEventValue(eventValue);
    if (eventPriority < currentEventQueuePriority) {
      currentEventQueuePriority = eventPriority;
    }
    currentEventQueue.push(createEventQueueItem(eventValue, eventListener));
  },
  isTargetWithinResponder: function (target) {
    validateResponderContext();
    if (target != null) {
      var fiber = getClosestInstanceFromNode(target);
      var responderFiber = currentInstance.fiber;

      while (fiber !== null) {
        if (fiber === responderFiber || fiber.alternate === responderFiber) {
          return true;
        }
        fiber = fiber.return;
      }
    }
    return false;
  },
  isTargetWithinResponderScope: function (target) {
    validateResponderContext();
    var componentInstance = currentInstance;
    var responder = componentInstance.responder;

    if (target != null) {
      var fiber = getClosestInstanceFromNode(target);
      var responderFiber = currentInstance.fiber;

      while (fiber !== null) {
        if (fiber === responderFiber || fiber.alternate === responderFiber) {
          return true;
        }
        if (doesFiberHaveResponder(fiber, responder)) {
          return false;
        }
        fiber = fiber.return;
      }
    }
    return false;
  },
  isTargetWithinNode: function (childTarget, parentTarget) {
    validateResponderContext();
    var childFiber = getClosestInstanceFromNode(childTarget);
    var parentFiber = getClosestInstanceFromNode(parentTarget);
    var parentAlternateFiber = parentFiber.alternate;

    var node = childFiber;
    while (node !== null) {
      if (node === parentFiber || node === parentAlternateFiber) {
        return true;
      }
      node = node.return;
    }
    return false;
  },
  addRootEventTypes: function (rootEventTypes) {
    validateResponderContext();
    var activeDocument = getActiveDocument();
    listenToResponderEventTypesImpl(rootEventTypes, activeDocument);
    for (var i = 0; i < rootEventTypes.length; i++) {
      var rootEventType = rootEventTypes[i];
      var eventResponderInstance = currentInstance;
      registerRootEventType(rootEventType, eventResponderInstance);
    }
  },
  removeRootEventTypes: function (rootEventTypes) {
    validateResponderContext();
    for (var i = 0; i < rootEventTypes.length; i++) {
      var rootEventType = rootEventTypes[i];
      var rootEventResponders = rootEventTypesToEventResponderInstances.get(rootEventType);
      var rootEventTypesSet = currentInstance.rootEventTypes;
      if (rootEventTypesSet !== null) {
        rootEventTypesSet.delete(rootEventType);
      }
      if (rootEventResponders !== undefined) {
        rootEventResponders.delete(currentInstance);
      }
    }
  },
  hasOwnership: function () {
    validateResponderContext();
    return globalOwner === currentInstance;
  },
  requestGlobalOwnership: function () {
    validateResponderContext();
    if (globalOwner !== null) {
      return false;
    }
    globalOwner = currentInstance;
    triggerOwnershipListeners();
    return true;
  },
  releaseOwnership: function () {
    validateResponderContext();
    return releaseOwnershipForEventResponderInstance(currentInstance);
  },
  setTimeout: function (func, delay) {
    validateResponderContext();
    if (currentTimers === null) {
      currentTimers = new Map();
    }
    var timeout = currentTimers.get(delay);

    var timerId = currentTimerIDCounter++;
    if (timeout === undefined) {
      var _timers = new Map();
      var _id = setTimeout(function () {
        processTimers(_timers, delay);
      }, delay);
      timeout = {
        id: _id,
        timers: _timers
      };
      currentTimers.set(delay, timeout);
    }
    timeout.timers.set(timerId, {
      instance: currentInstance,
      func: func,
      id: timerId,
      timeStamp: currentTimeStamp
    });
    activeTimeouts.set(timerId, timeout);
    return timerId;
  },
  clearTimeout: function (timerId) {
    validateResponderContext();
    var timeout = activeTimeouts.get(timerId);

    if (timeout !== undefined) {
      var _timers2 = timeout.timers;
      _timers2.delete(timerId);
      if (_timers2.size === 0) {
        clearTimeout(timeout.id);
      }
    }
  },
  getFocusableElementsInScope: function (deep) {
    validateResponderContext();
    var focusableElements = [];
    var eventResponderInstance = currentInstance;
    var currentResponder = eventResponderInstance.responder;
    var focusScopeFiber = eventResponderInstance.fiber;
    if (deep) {
      var deepNode = focusScopeFiber.return;
      while (deepNode !== null) {
        if (doesFiberHaveResponder(deepNode, currentResponder)) {
          focusScopeFiber = deepNode;
        }
        deepNode = deepNode.return;
      }
    }
    var child = focusScopeFiber.child;

    if (child !== null) {
      collectFocusableElements(child, focusableElements);
    }
    return focusableElements;
  },

  getActiveDocument: getActiveDocument,
  objectAssign: _assign,
  getTimeStamp: function () {
    validateResponderContext();
    return currentTimeStamp;
  },
  isTargetWithinHostComponent: function (target, elementType) {
    validateResponderContext();
    var fiber = getClosestInstanceFromNode(target);

    while (fiber !== null) {
      if (fiber.tag === HostComponent && fiber.type === elementType) {
        return true;
      }
      fiber = fiber.return;
    }
    return false;
  },

  enqueueStateRestore: enqueueStateRestore
};

function validateEventValue(eventValue) {
  if (typeof eventValue === 'object' && eventValue !== null) {
    var target = eventValue.target,
        type = eventValue.type,
        _timeStamp = eventValue.timeStamp;


    if (target == null || type == null || _timeStamp == null) {
      throw new Error('context.dispatchEvent: "target", "timeStamp", and "type" fields on event object are required.');
    }
    var showWarning = function (name) {
      {
        warning$1(false, '%s is not available on event objects created from event responder modules (React Flare). ' + 'Try wrapping in a conditional, i.e. `if (event.type !== "press") { event.%s }`', name, name);
      }
    };
    eventValue.preventDefault = function () {
      {
        showWarning('preventDefault()');
      }
    };
    eventValue.stopPropagation = function () {
      {
        showWarning('stopPropagation()');
      }
    };
    eventValue.isDefaultPrevented = function () {
      {
        showWarning('isDefaultPrevented()');
      }
    };
    eventValue.isPropagationStopped = function () {
      {
        showWarning('isPropagationStopped()');
      }
    };
    // $FlowFixMe: we don't need value, Flow thinks we do
    Object.defineProperty(eventValue, 'nativeEvent', {
      get: function () {
        {
          showWarning('nativeEvent');
        }
      }
    });
  }
}

function collectFocusableElements(node, focusableElements) {
  if (isFiberSuspenseAndTimedOut(node)) {
    var fallbackChild = getSuspenseFallbackChild(node);
    if (fallbackChild !== null) {
      collectFocusableElements(fallbackChild, focusableElements);
    }
  } else {
    if (isFiberHostComponentFocusable(node)) {
      focusableElements.push(node.stateNode);
    } else {
      var child = node.child;

      if (child !== null) {
        collectFocusableElements(child, focusableElements);
      }
    }
  }
  var sibling = node.sibling;

  if (sibling !== null) {
    collectFocusableElements(sibling, focusableElements);
  }
}

function createEventQueueItem(value, listener) {
  return {
    value: value,
    listener: listener
  };
}

function doesFiberHaveResponder(fiber, responder) {
  if (fiber.tag === HostComponent) {
    var dependencies = fiber.dependencies;
    if (dependencies !== null) {
      var respondersMap = dependencies.responders;
      if (respondersMap !== null && respondersMap.has(responder)) {
        return true;
      }
    }
  }
  return false;
}

function getActiveDocument() {
  return currentDocument;
}

function releaseOwnershipForEventResponderInstance(eventResponderInstance) {
  if (globalOwner === eventResponderInstance) {
    globalOwner = null;
    triggerOwnershipListeners();
    return true;
  }
  return false;
}

function isFiberHostComponentFocusable(fiber) {
  if (fiber.tag !== HostComponent) {
    return false;
  }
  var type = fiber.type,
      memoizedProps = fiber.memoizedProps;

  if (memoizedProps.tabIndex === -1 || memoizedProps.disabled) {
    return false;
  }
  if (memoizedProps.tabIndex === 0 || memoizedProps.contentEditable === true) {
    return true;
  }
  if (type === 'a' || type === 'area') {
    return !!memoizedProps.href && memoizedProps.rel !== 'ignore';
  }
  if (type === 'input') {
    return memoizedProps.type !== 'hidden' && memoizedProps.type !== 'file';
  }
  return type === 'button' || type === 'textarea' || type === 'object' || type === 'select' || type === 'iframe' || type === 'embed';
}

function processTimers(timers, delay) {
  var timersArr = Array.from(timers.values());
  currentEventQueuePriority = ContinuousEvent;
  try {
    for (var i = 0; i < timersArr.length; i++) {
      var _timersArr$i = timersArr[i],
          _instance = _timersArr$i.instance,
          _func = _timersArr$i.func,
          _id2 = _timersArr$i.id,
          _timeStamp2 = _timersArr$i.timeStamp;

      currentInstance = _instance;
      currentEventQueue = [];
      currentTimeStamp = _timeStamp2 + delay;
      try {
        _func();
      } finally {
        activeTimeouts.delete(_id2);
      }
    }
    processEventQueue();
  } finally {
    currentTimers = null;
    currentInstance = null;
    currentEventQueue = null;
    currentTimeStamp = 0;
  }
}

function createDOMResponderEvent(topLevelType, nativeEvent, nativeEventTarget, passive, passiveSupported) {
  var _ref = nativeEvent,
      pointerType = _ref.pointerType;

  var eventPointerType = '';
  var pointerId = null;

  if (pointerType !== undefined) {
    eventPointerType = pointerType;
    pointerId = nativeEvent.pointerId;
  } else if (nativeEvent.key !== undefined) {
    eventPointerType = 'keyboard';
  } else if (nativeEvent.button !== undefined) {
    eventPointerType = 'mouse';
  } else if (nativeEvent.changedTouches !== undefined) {
    eventPointerType = 'touch';
  }

  return {
    nativeEvent: nativeEvent,
    passive: passive,
    passiveSupported: passiveSupported,
    pointerId: pointerId,
    pointerType: eventPointerType,
    responderTarget: null,
    target: nativeEventTarget,
    type: topLevelType
  };
}

function processEvents(eventQueue) {
  for (var i = 0, length = eventQueue.length; i < length; i++) {
    var _eventQueue$i = eventQueue[i],
        _value = _eventQueue$i.value,
        _listener = _eventQueue$i.listener;

    var type = typeof _value === 'object' && _value !== null ? _value.type : '';
    invokeGuardedCallbackAndCatchFirstError(type, _listener, undefined, _value);
  }
}

function processEventQueue() {
  var eventQueue = currentEventQueue;
  if (eventQueue.length === 0) {
    return;
  }
  switch (currentEventQueuePriority) {
    case DiscreteEvent:
      {
        flushDiscreteUpdatesIfNeeded(currentTimeStamp);
        discreteUpdates(function () {
          batchedEventUpdates(processEvents, eventQueue);
        });
        break;
      }
    case UserBlockingEvent:
      {
        if (enableUserBlockingEvents) {
          runWithPriority$1(UserBlockingPriority$1, batchedEventUpdates.bind(null, processEvents, eventQueue));
        } else {
          batchedEventUpdates(processEvents, eventQueue);
        }
        break;
      }
    case ContinuousEvent:
      {
        batchedEventUpdates(processEvents, eventQueue);
        break;
      }
  }
}

function responderEventTypesContainType(eventTypes, type) {
  for (var i = 0, len = eventTypes.length; i < len; i++) {
    if (eventTypes[i] === type) {
      return true;
    }
  }
  return false;
}

function validateResponderTargetEventTypes(eventType, responder) {
  var targetEventTypes = responder.targetEventTypes;
  // Validate the target event type exists on the responder

  if (targetEventTypes !== null) {
    return responderEventTypesContainType(targetEventTypes, eventType);
  }
  return false;
}

function validateOwnership(responderInstance) {
  return globalOwner === null || globalOwner === responderInstance;
}

function traverseAndHandleEventResponderInstances(topLevelType, targetFiber, nativeEvent, nativeEventTarget, eventSystemFlags) {
  var isPassiveEvent = (eventSystemFlags & IS_PASSIVE) !== 0;
  var isPassiveSupported = (eventSystemFlags & PASSIVE_NOT_SUPPORTED) === 0;
  var isPassive = isPassiveEvent || !isPassiveSupported;
  var eventType = isPassive ? topLevelType : topLevelType + '_active';

  // Trigger event responders in this order:
  // - Bubble target responder phase
  // - Root responder phase

  var visitedResponders = new Set();
  var responderEvent = createDOMResponderEvent(topLevelType, nativeEvent, nativeEventTarget, isPassiveEvent, isPassiveSupported);
  var node = targetFiber;
  while (node !== null) {
    var _node = node,
        dependencies = _node.dependencies,
        tag = _node.tag;

    if (tag === HostComponent && dependencies !== null) {
      var respondersMap = dependencies.responders;
      if (respondersMap !== null) {
        var responderInstances = Array.from(respondersMap.values());
        for (var i = 0, length = responderInstances.length; i < length; i++) {
          var responderInstance = responderInstances[i];

          if (validateOwnership(responderInstance)) {
            var props = responderInstance.props,
                responder = responderInstance.responder,
                state = responderInstance.state,
                target = responderInstance.target;

            if (!visitedResponders.has(responder) && validateResponderTargetEventTypes(eventType, responder)) {
              visitedResponders.add(responder);
              var onEvent = responder.onEvent;
              if (onEvent !== null) {
                currentInstance = responderInstance;
                responderEvent.responderTarget = target;
                onEvent(responderEvent, eventResponderContext, props, state);
              }
            }
          }
        }
      }
    }
    node = node.return;
  }
  // Root phase
  var rootEventResponderInstances = rootEventTypesToEventResponderInstances.get(eventType);
  if (rootEventResponderInstances !== undefined) {
    var _responderInstances = Array.from(rootEventResponderInstances);

    for (var _i = 0; _i < _responderInstances.length; _i++) {
      var _responderInstance = _responderInstances[_i];
      if (!validateOwnership(_responderInstance)) {
        continue;
      }
      var _props = _responderInstance.props,
          _responder = _responderInstance.responder,
          _state = _responderInstance.state,
          _target = _responderInstance.target;

      var onRootEvent = _responder.onRootEvent;
      if (onRootEvent !== null) {
        currentInstance = _responderInstance;
        responderEvent.responderTarget = _target;
        onRootEvent(responderEvent, eventResponderContext, _props, _state);
      }
    }
  }
}

function triggerOwnershipListeners() {
  var listeningInstances = Array.from(ownershipChangeListeners);
  var previousInstance = currentInstance;
  var previousEventQueuePriority = currentEventQueuePriority;
  var previousEventQueue = currentEventQueue;
  try {
    for (var i = 0; i < listeningInstances.length; i++) {
      var _instance2 = listeningInstances[i];
      var props = _instance2.props,
          responder = _instance2.responder,
          state = _instance2.state;

      currentInstance = _instance2;
      currentEventQueuePriority = ContinuousEvent;
      currentEventQueue = [];
      var onOwnershipChange = responder.onOwnershipChange;
      if (onOwnershipChange !== null) {
        onOwnershipChange(eventResponderContext, props, state);
      }
    }
    processEventQueue();
  } finally {
    currentInstance = previousInstance;
    currentEventQueue = previousEventQueue;
    currentEventQueuePriority = previousEventQueuePriority;
  }
}

function mountEventResponder(responder, responderInstance, props, state) {
  if (responder.onOwnershipChange !== null) {
    ownershipChangeListeners.add(responderInstance);
  }
  var onMount = responder.onMount;
  if (onMount !== null) {
    currentEventQueuePriority = ContinuousEvent;
    currentInstance = responderInstance;
    currentEventQueue = [];
    try {
      onMount(eventResponderContext, props, state);
      processEventQueue();
    } finally {
      currentEventQueue = null;
      currentInstance = null;
      currentTimers = null;
    }
  }
}

function unmountEventResponder(responderInstance) {
  var responder = responderInstance.responder;
  var onUnmount = responder.onUnmount;
  if (onUnmount !== null) {
    var props = responderInstance.props,
        state = responderInstance.state;

    currentEventQueue = [];
    currentEventQueuePriority = ContinuousEvent;
    currentInstance = responderInstance;
    try {
      onUnmount(eventResponderContext, props, state);
      processEventQueue();
    } finally {
      currentEventQueue = null;
      currentInstance = null;
      currentTimers = null;
    }
  }
  releaseOwnershipForEventResponderInstance(responderInstance);
  if (responder.onOwnershipChange !== null) {
    ownershipChangeListeners.delete(responderInstance);
  }
  var rootEventTypesSet = responderInstance.rootEventTypes;
  if (rootEventTypesSet !== null) {
    var rootEventTypes = Array.from(rootEventTypesSet);

    for (var i = 0; i < rootEventTypes.length; i++) {
      var topLevelEventType = rootEventTypes[i];
      var rootEventResponderInstances = rootEventTypesToEventResponderInstances.get(topLevelEventType);
      if (rootEventResponderInstances !== undefined) {
        rootEventResponderInstances.delete(responderInstance);
      }
    }
  }
}

function validateResponderContext() {
  (function () {
    if (!(currentInstance !== null)) {
      {
        throw ReactError(Error('An event responder context was used outside of an event cycle. Use context.setTimeout() to use asynchronous responder context outside of event cycle .'));
      }
    }
  })();
}

function dispatchEventForResponderEventSystem(topLevelType, targetFiber, nativeEvent, nativeEventTarget, eventSystemFlags) {
  if (enableFlareAPI) {
    var previousEventQueue = currentEventQueue;
    var previousInstance = currentInstance;
    var previousTimers = currentTimers;
    var previousTimeStamp = currentTimeStamp;
    var previousDocument = currentDocument;
    var previousEventQueuePriority = currentEventQueuePriority;
    currentTimers = null;
    currentEventQueue = [];
    currentEventQueuePriority = ContinuousEvent;
    // nodeType 9 is DOCUMENT_NODE
    currentDocument = nativeEventTarget.nodeType === 9 ? nativeEventTarget : nativeEventTarget.ownerDocument;
    // We might want to control timeStamp another way here
    currentTimeStamp = nativeEvent.timeStamp;
    try {
      traverseAndHandleEventResponderInstances(topLevelType, targetFiber, nativeEvent, nativeEventTarget, eventSystemFlags);
      processEventQueue();
    } finally {
      currentTimers = previousTimers;
      currentInstance = previousInstance;
      currentEventQueue = previousEventQueue;
      currentTimeStamp = previousTimeStamp;
      currentDocument = previousDocument;
      currentEventQueuePriority = previousEventQueuePriority;
    }
  }
}

function addRootEventTypesForResponderInstance(responderInstance, rootEventTypes) {
  for (var i = 0; i < rootEventTypes.length; i++) {
    var rootEventType = rootEventTypes[i];
    registerRootEventType(rootEventType, responderInstance);
  }
}

function registerRootEventType(rootEventType, eventResponderInstance) {
  var rootEventResponderInstances = rootEventTypesToEventResponderInstances.get(rootEventType);
  if (rootEventResponderInstances === undefined) {
    rootEventResponderInstances = new Set();
    rootEventTypesToEventResponderInstances.set(rootEventType, rootEventResponderInstances);
  }
  var rootEventTypesSet = eventResponderInstance.rootEventTypes;
  if (rootEventTypesSet === null) {
    rootEventTypesSet = eventResponderInstance.rootEventTypes = new Set();
  }
  (function () {
    if (!!rootEventTypesSet.has(rootEventType)) {
      {
        throw ReactError(Error('addRootEventTypes() found a duplicate root event type of "' + rootEventType + '". This might be because the event type exists in the event responder "rootEventTypes" array or because of a previous addRootEventTypes() using this root event type.'));
      }
    }
  })();
  rootEventTypesSet.add(rootEventType);
  rootEventResponderInstances.add(eventResponderInstance);
}

/**
 * `ReactInstanceMap` maintains a mapping from a public facing stateful
 * instance (key) and the internal representation (value). This allows public
 * methods to accept the user facing instance as an argument and map them back
 * to internal methods.
 *
 * Note that this module is currently shared and assumed to be stateless.
 * If this becomes an actual Map, that will break.
 */

/**
 * This API should be called `delete` but we'd have to make sure to always
 * transform these to strings for IE support. When this transform is fully
 * supported we can rename it.
 */


function get(key) {
  return key._reactInternalFiber;
}

function has(key) {
  return key._reactInternalFiber !== undefined;
}

function set(key, value) {
  key._reactInternalFiber = value;
}

// Don't change these two values. They're used by React Dev Tools.
var NoEffect = /*              */0;
var PerformedWork = /*         */1;

// You can change the rest (and add more).
var Placement = /*             */2;
var Update = /*                */4;
var PlacementAndUpdate = /*    */6;
var Deletion = /*              */8;
var ContentReset = /*          */16;
var Callback = /*              */32;
var DidCapture = /*            */64;
var Ref = /*                   */128;
var Snapshot = /*              */256;
var Passive = /*               */512;

// Passive & Update & Callback & Ref & Snapshot
var LifecycleEffectMask = /*   */932;

// Union of all host effects
var HostEffectMask = /*        */1023;

var Incomplete = /*            */1024;
var ShouldCapture = /*         */2048;

var ReactCurrentOwner$1 = ReactSharedInternals.ReactCurrentOwner;

var MOUNTING = 1;
var MOUNTED = 2;
var UNMOUNTED = 3;

function isFiberMountedImpl(fiber) {
  var node = fiber;
  if (!fiber.alternate) {
    // If there is no alternate, this might be a new tree that isn't inserted
    // yet. If it is, then it will have a pending insertion effect on it.
    if ((node.effectTag & Placement) !== NoEffect) {
      return MOUNTING;
    }
    while (node.return) {
      node = node.return;
      if ((node.effectTag & Placement) !== NoEffect) {
        return MOUNTING;
      }
    }
  } else {
    while (node.return) {
      node = node.return;
    }
  }
  if (node.tag === HostRoot) {
    // TODO: Check if this was a nested HostRoot when used with
    // renderContainerIntoSubtree.
    return MOUNTED;
  }
  // If we didn't hit the root, that means that we're in an disconnected tree
  // that has been unmounted.
  return UNMOUNTED;
}

function isFiberMounted(fiber) {
  return isFiberMountedImpl(fiber) === MOUNTED;
}

function isMounted(component) {
  {
    var owner = ReactCurrentOwner$1.current;
    if (owner !== null && owner.tag === ClassComponent) {
      var ownerFiber = owner;
      var instance = ownerFiber.stateNode;
      !instance._warnedAboutRefsInRender ? warningWithoutStack$1(false, '%s is accessing isMounted inside its render() function. ' + 'render() should be a pure function of props and state. It should ' + 'never access something that requires stale data from the previous ' + 'render, such as refs. Move this logic to componentDidMount and ' + 'componentDidUpdate instead.', getComponentName(ownerFiber.type) || 'A component') : void 0;
      instance._warnedAboutRefsInRender = true;
    }
  }

  var fiber = get(component);
  if (!fiber) {
    return false;
  }
  return isFiberMountedImpl(fiber) === MOUNTED;
}

function assertIsMounted(fiber) {
  (function () {
    if (!(isFiberMountedImpl(fiber) === MOUNTED)) {
      {
        throw ReactError(Error('Unable to find node on an unmounted component.'));
      }
    }
  })();
}

function findCurrentFiberUsingSlowPath(fiber) {
  var alternate = fiber.alternate;
  if (!alternate) {
    // If there is no alternate, then we only need to check if it is mounted.
    var state = isFiberMountedImpl(fiber);
    (function () {
      if (!(state !== UNMOUNTED)) {
        {
          throw ReactError(Error('Unable to find node on an unmounted component.'));
        }
      }
    })();
    if (state === MOUNTING) {
      return null;
    }
    return fiber;
  }
  // If we have two possible branches, we'll walk backwards up to the root
  // to see what path the root points to. On the way we may hit one of the
  // special cases and we'll deal with them.
  var a = fiber;
  var b = alternate;
  while (true) {
    var parentA = a.return;
    if (parentA === null) {
      // We're at the root.
      break;
    }
    var parentB = parentA.alternate;
    if (parentB === null) {
      // There is no alternate. This is an unusual case. Currently, it only
      // happens when a Suspense component is hidden. An extra fragment fiber
      // is inserted in between the Suspense fiber and its children. Skip
      // over this extra fragment fiber and proceed to the next parent.
      var nextParent = parentA.return;
      if (nextParent !== null) {
        a = b = nextParent;
        continue;
      }
      // If there's no parent, we're at the root.
      break;
    }

    // If both copies of the parent fiber point to the same child, we can
    // assume that the child is current. This happens when we bailout on low
    // priority: the bailed out fiber's child reuses the current child.
    if (parentA.child === parentB.child) {
      var child = parentA.child;
      while (child) {
        if (child === a) {
          // We've determined that A is the current branch.
          assertIsMounted(parentA);
          return fiber;
        }
        if (child === b) {
          // We've determined that B is the current branch.
          assertIsMounted(parentA);
          return alternate;
        }
        child = child.sibling;
      }
      // We should never have an alternate for any mounting node. So the only
      // way this could possibly happen is if this was unmounted, if at all.
      (function () {
        {
          {
            throw ReactError(Error('Unable to find node on an unmounted component.'));
          }
        }
      })();
    }

    if (a.return !== b.return) {
      // The return pointer of A and the return pointer of B point to different
      // fibers. We assume that return pointers never criss-cross, so A must
      // belong to the child set of A.return, and B must belong to the child
      // set of B.return.
      a = parentA;
      b = parentB;
    } else {
      // The return pointers point to the same fiber. We'll have to use the
      // default, slow path: scan the child sets of each parent alternate to see
      // which child belongs to which set.
      //
      // Search parent A's child set
      var didFindChild = false;
      var _child = parentA.child;
      while (_child) {
        if (_child === a) {
          didFindChild = true;
          a = parentA;
          b = parentB;
          break;
        }
        if (_child === b) {
          didFindChild = true;
          b = parentA;
          a = parentB;
          break;
        }
        _child = _child.sibling;
      }
      if (!didFindChild) {
        // Search parent B's child set
        _child = parentB.child;
        while (_child) {
          if (_child === a) {
            didFindChild = true;
            a = parentB;
            b = parentA;
            break;
          }
          if (_child === b) {
            didFindChild = true;
            b = parentB;
            a = parentA;
            break;
          }
          _child = _child.sibling;
        }
        (function () {
          if (!didFindChild) {
            {
              throw ReactError(Error('Child was not found in either parent set. This indicates a bug in React related to the return pointer. Please file an issue.'));
            }
          }
        })();
      }
    }

    (function () {
      if (!(a.alternate === b)) {
        {
          throw ReactError(Error('Return fibers should always be each others\' alternates. This error is likely caused by a bug in React. Please file an issue.'));
        }
      }
    })();
  }
  // If the root is not a host container, we're in a disconnected tree. I.e.
  // unmounted.
  (function () {
    if (!(a.tag === HostRoot)) {
      {
        throw ReactError(Error('Unable to find node on an unmounted component.'));
      }
    }
  })();
  if (a.stateNode.current === a) {
    // We've determined that A is the current branch.
    return fiber;
  }
  // Otherwise B has to be current branch.
  return alternate;
}

function findCurrentHostFiber(parent) {
  var currentParent = findCurrentFiberUsingSlowPath(parent);
  if (!currentParent) {
    return null;
  }

  // Next we'll drill down this component to find the first HostComponent/Text.
  var node = currentParent;
  while (true) {
    if (node.tag === HostComponent || node.tag === HostText) {
      return node;
    } else if (node.child) {
      node.child.return = node;
      node = node.child;
      continue;
    }
    if (node === currentParent) {
      return null;
    }
    while (!node.sibling) {
      if (!node.return || node.return === currentParent) {
        return null;
      }
      node = node.return;
    }
    node.sibling.return = node.return;
    node = node.sibling;
  }
  // Flow needs the return null here, but ESLint complains about it.
  // eslint-disable-next-line no-unreachable
  return null;
}

function findCurrentHostFiberWithNoPortals(parent) {
  var currentParent = findCurrentFiberUsingSlowPath(parent);
  if (!currentParent) {
    return null;
  }

  // Next we'll drill down this component to find the first HostComponent/Text.
  var node = currentParent;
  while (true) {
    if (node.tag === HostComponent || node.tag === HostText || node.tag === FundamentalComponent) {
      return node;
    } else if (node.child && node.tag !== HostPortal) {
      node.child.return = node;
      node = node.child;
      continue;
    }
    if (node === currentParent) {
      return null;
    }
    while (!node.sibling) {
      if (!node.return || node.return === currentParent) {
        return null;
      }
      node = node.return;
    }
    node.sibling.return = node.return;
    node = node.sibling;
  }
  // Flow needs the return null here, but ESLint complains about it.
  // eslint-disable-next-line no-unreachable
  return null;
}

function addEventBubbleListener(element, eventType, listener) {
  element.addEventListener(eventType, listener, false);
}

function addEventCaptureListener(element, eventType, listener) {
  element.addEventListener(eventType, listener, true);
}

function addEventCaptureListenerWithPassiveFlag(element, eventType, listener, passive) {
  element.addEventListener(eventType, listener, {
    capture: true,
    passive: passive
  });
}

/**
 * @interface Event
 * @see http://www.w3.org/TR/css3-animations/#AnimationEvent-interface
 * @see https://developer.mozilla.org/en-US/docs/Web/API/AnimationEvent
 */
var SyntheticAnimationEvent = SyntheticEvent.extend({
  animationName: null,
  elapsedTime: null,
  pseudoElement: null
});

/**
 * @interface Event
 * @see http://www.w3.org/TR/clipboard-apis/
 */
var SyntheticClipboardEvent = SyntheticEvent.extend({
  clipboardData: function (event) {
    return 'clipboardData' in event ? event.clipboardData : window.clipboardData;
  }
});

/**
 * @interface FocusEvent
 * @see http://www.w3.org/TR/DOM-Level-3-Events/
 */
var SyntheticFocusEvent = SyntheticUIEvent.extend({
  relatedTarget: null
});

/**
 * `charCode` represents the actual "character code" and is safe to use with
 * `String.fromCharCode`. As such, only keys that correspond to printable
 * characters produce a valid `charCode`, the only exception to this is Enter.
 * The Tab-key is considered non-printable and does not have a `charCode`,
 * presumably because it does not produce a tab-character in browsers.
 *
 * @param {object} nativeEvent Native browser event.
 * @return {number} Normalized `charCode` property.
 */
function getEventCharCode(nativeEvent) {
  var charCode = void 0;
  var keyCode = nativeEvent.keyCode;

  if ('charCode' in nativeEvent) {
    charCode = nativeEvent.charCode;

    // FF does not set `charCode` for the Enter-key, check against `keyCode`.
    if (charCode === 0 && keyCode === 13) {
      charCode = 13;
    }
  } else {
    // IE8 does not implement `charCode`, but `keyCode` has the correct value.
    charCode = keyCode;
  }

  // IE and Edge (on Windows) and Chrome / Safari (on Windows and Linux)
  // report Enter as charCode 10 when ctrl is pressed.
  if (charCode === 10) {
    charCode = 13;
  }

  // Some non-printable keys are reported in `charCode`/`keyCode`, discard them.
  // Must not discard the (non-)printable Enter-key.
  if (charCode >= 32 || charCode === 13) {
    return charCode;
  }

  return 0;
}

/**
 * Normalization of deprecated HTML5 `key` values
 * @see https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent#Key_names
 */
var normalizeKey = {
  Esc: 'Escape',
  Spacebar: ' ',
  Left: 'ArrowLeft',
  Up: 'ArrowUp',
  Right: 'ArrowRight',
  Down: 'ArrowDown',
  Del: 'Delete',
  Win: 'OS',
  Menu: 'ContextMenu',
  Apps: 'ContextMenu',
  Scroll: 'ScrollLock',
  MozPrintableKey: 'Unidentified'
};

/**
 * Translation from legacy `keyCode` to HTML5 `key`
 * Only special keys supported, all others depend on keyboard layout or browser
 * @see https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent#Key_names
 */
var translateToKey = {
  '8': 'Backspace',
  '9': 'Tab',
  '12': 'Clear',
  '13': 'Enter',
  '16': 'Shift',
  '17': 'Control',
  '18': 'Alt',
  '19': 'Pause',
  '20': 'CapsLock',
  '27': 'Escape',
  '32': ' ',
  '33': 'PageUp',
  '34': 'PageDown',
  '35': 'End',
  '36': 'Home',
  '37': 'ArrowLeft',
  '38': 'ArrowUp',
  '39': 'ArrowRight',
  '40': 'ArrowDown',
  '45': 'Insert',
  '46': 'Delete',
  '112': 'F1',
  '113': 'F2',
  '114': 'F3',
  '115': 'F4',
  '116': 'F5',
  '117': 'F6',
  '118': 'F7',
  '119': 'F8',
  '120': 'F9',
  '121': 'F10',
  '122': 'F11',
  '123': 'F12',
  '144': 'NumLock',
  '145': 'ScrollLock',
  '224': 'Meta'
};

/**
 * @param {object} nativeEvent Native browser event.
 * @return {string} Normalized `key` property.
 */
function getEventKey(nativeEvent) {
  if (nativeEvent.key) {
    // Normalize inconsistent values reported by browsers due to
    // implementations of a working draft specification.

    // FireFox implements `key` but returns `MozPrintableKey` for all
    // printable characters (normalized to `Unidentified`), ignore it.
    var key = normalizeKey[nativeEvent.key] || nativeEvent.key;
    if (key !== 'Unidentified') {
      return key;
    }
  }

  // Browser does not implement `key`, polyfill as much of it as we can.
  if (nativeEvent.type === 'keypress') {
    var charCode = getEventCharCode(nativeEvent);

    // The enter-key is technically both printable and non-printable and can
    // thus be captured by `keypress`, no other non-printable key should.
    return charCode === 13 ? 'Enter' : String.fromCharCode(charCode);
  }
  if (nativeEvent.type === 'keydown' || nativeEvent.type === 'keyup') {
    // While user keyboard layout determines the actual meaning of each
    // `keyCode` value, almost all function keys have a universal value.
    return translateToKey[nativeEvent.keyCode] || 'Unidentified';
  }
  return '';
}

/**
 * @interface KeyboardEvent
 * @see http://www.w3.org/TR/DOM-Level-3-Events/
 */
var SyntheticKeyboardEvent = SyntheticUIEvent.extend({
  key: getEventKey,
  location: null,
  ctrlKey: null,
  shiftKey: null,
  altKey: null,
  metaKey: null,
  repeat: null,
  locale: null,
  getModifierState: getEventModifierState,
  // Legacy Interface
  charCode: function (event) {
    // `charCode` is the result of a KeyPress event and represents the value of
    // the actual printable character.

    // KeyPress is deprecated, but its replacement is not yet final and not
    // implemented in any major browser. Only KeyPress has charCode.
    if (event.type === 'keypress') {
      return getEventCharCode(event);
    }
    return 0;
  },
  keyCode: function (event) {
    // `keyCode` is the result of a KeyDown/Up event and represents the value of
    // physical keyboard key.

    // The actual meaning of the value depends on the users' keyboard layout
    // which cannot be detected. Assuming that it is a US keyboard layout
    // provides a surprisingly accurate mapping for US and European users.
    // Due to this, it is left to the user to implement at this time.
    if (event.type === 'keydown' || event.type === 'keyup') {
      return event.keyCode;
    }
    return 0;
  },
  which: function (event) {
    // `which` is an alias for either `keyCode` or `charCode` depending on the
    // type of the event.
    if (event.type === 'keypress') {
      return getEventCharCode(event);
    }
    if (event.type === 'keydown' || event.type === 'keyup') {
      return event.keyCode;
    }
    return 0;
  }
});

/**
 * @interface DragEvent
 * @see http://www.w3.org/TR/DOM-Level-3-Events/
 */
var SyntheticDragEvent = SyntheticMouseEvent.extend({
  dataTransfer: null
});

/**
 * @interface TouchEvent
 * @see http://www.w3.org/TR/touch-events/
 */
var SyntheticTouchEvent = SyntheticUIEvent.extend({
  touches: null,
  targetTouches: null,
  changedTouches: null,
  altKey: null,
  metaKey: null,
  ctrlKey: null,
  shiftKey: null,
  getModifierState: getEventModifierState
});

/**
 * @interface Event
 * @see http://www.w3.org/TR/2009/WD-css3-transitions-20090320/#transition-events-
 * @see https://developer.mozilla.org/en-US/docs/Web/API/TransitionEvent
 */
var SyntheticTransitionEvent = SyntheticEvent.extend({
  propertyName: null,
  elapsedTime: null,
  pseudoElement: null
});

/**
 * @interface WheelEvent
 * @see http://www.w3.org/TR/DOM-Level-3-Events/
 */
var SyntheticWheelEvent = SyntheticMouseEvent.extend({
  deltaX: function (event) {
    return 'deltaX' in event ? event.deltaX : // Fallback to `wheelDeltaX` for Webkit and normalize (right is positive).
    'wheelDeltaX' in event ? -event.wheelDeltaX : 0;
  },
  deltaY: function (event) {
    return 'deltaY' in event ? event.deltaY : // Fallback to `wheelDeltaY` for Webkit and normalize (down is positive).
    'wheelDeltaY' in event ? -event.wheelDeltaY : // Fallback to `wheelDelta` for IE<9 and normalize (down is positive).
    'wheelDelta' in event ? -event.wheelDelta : 0;
  },

  deltaZ: null,

  // Browsers without "deltaMode" is reporting in raw wheel delta where one
  // notch on the scroll is always +/- 120, roughly equivalent to pixels.
  // A good approximation of DOM_DELTA_LINE (1) is 5% of viewport size or
  // ~40 pixels, for DOM_DELTA_SCREEN (2) it is 87.5% of viewport size.
  deltaMode: null
});

/**
 * Turns
 * ['abort', ...]
 * into
 * eventTypes = {
 *   'abort': {
 *     phasedRegistrationNames: {
 *       bubbled: 'onAbort',
 *       captured: 'onAbortCapture',
 *     },
 *     dependencies: [TOP_ABORT],
 *   },
 *   ...
 * };
 * topLevelEventsToDispatchConfig = new Map([
 *   [TOP_ABORT, { sameConfig }],
 * ]);
 */

var eventTuples = [
// Discrete events
[TOP_BLUR, 'blur', DiscreteEvent], [TOP_CANCEL, 'cancel', DiscreteEvent], [TOP_CLICK, 'click', DiscreteEvent], [TOP_CLOSE, 'close', DiscreteEvent], [TOP_CONTEXT_MENU, 'contextMenu', DiscreteEvent], [TOP_COPY, 'copy', DiscreteEvent], [TOP_CUT, 'cut', DiscreteEvent], [TOP_AUX_CLICK, 'auxClick', DiscreteEvent], [TOP_DOUBLE_CLICK, 'doubleClick', DiscreteEvent], [TOP_DRAG_END, 'dragEnd', DiscreteEvent], [TOP_DRAG_START, 'dragStart', DiscreteEvent], [TOP_DROP, 'drop', DiscreteEvent], [TOP_FOCUS, 'focus', DiscreteEvent], [TOP_INPUT, 'input', DiscreteEvent], [TOP_INVALID, 'invalid', DiscreteEvent], [TOP_KEY_DOWN, 'keyDown', DiscreteEvent], [TOP_KEY_PRESS, 'keyPress', DiscreteEvent], [TOP_KEY_UP, 'keyUp', DiscreteEvent], [TOP_MOUSE_DOWN, 'mouseDown', DiscreteEvent], [TOP_MOUSE_UP, 'mouseUp', DiscreteEvent], [TOP_PASTE, 'paste', DiscreteEvent], [TOP_PAUSE, 'pause', DiscreteEvent], [TOP_PLAY, 'play', DiscreteEvent], [TOP_POINTER_CANCEL, 'pointerCancel', DiscreteEvent], [TOP_POINTER_DOWN, 'pointerDown', DiscreteEvent], [TOP_POINTER_UP, 'pointerUp', DiscreteEvent], [TOP_RATE_CHANGE, 'rateChange', DiscreteEvent], [TOP_RESET, 'reset', DiscreteEvent], [TOP_SEEKED, 'seeked', DiscreteEvent], [TOP_SUBMIT, 'submit', DiscreteEvent], [TOP_TOUCH_CANCEL, 'touchCancel', DiscreteEvent], [TOP_TOUCH_END, 'touchEnd', DiscreteEvent], [TOP_TOUCH_START, 'touchStart', DiscreteEvent], [TOP_VOLUME_CHANGE, 'volumeChange', DiscreteEvent],

// User-blocking events
[TOP_DRAG, 'drag', UserBlockingEvent], [TOP_DRAG_ENTER, 'dragEnter', UserBlockingEvent], [TOP_DRAG_EXIT, 'dragExit', UserBlockingEvent], [TOP_DRAG_LEAVE, 'dragLeave', UserBlockingEvent], [TOP_DRAG_OVER, 'dragOver', UserBlockingEvent], [TOP_MOUSE_MOVE, 'mouseMove', UserBlockingEvent], [TOP_MOUSE_OUT, 'mouseOut', UserBlockingEvent], [TOP_MOUSE_OVER, 'mouseOver', UserBlockingEvent], [TOP_POINTER_MOVE, 'pointerMove', UserBlockingEvent], [TOP_POINTER_OUT, 'pointerOut', UserBlockingEvent], [TOP_POINTER_OVER, 'pointerOver', UserBlockingEvent], [TOP_SCROLL, 'scroll', UserBlockingEvent], [TOP_TOGGLE, 'toggle', UserBlockingEvent], [TOP_TOUCH_MOVE, 'touchMove', UserBlockingEvent], [TOP_WHEEL, 'wheel', UserBlockingEvent],

// Continuous events
[TOP_ABORT, 'abort', ContinuousEvent], [TOP_ANIMATION_END, 'animationEnd', ContinuousEvent], [TOP_ANIMATION_ITERATION, 'animationIteration', ContinuousEvent], [TOP_ANIMATION_START, 'animationStart', ContinuousEvent], [TOP_CAN_PLAY, 'canPlay', ContinuousEvent], [TOP_CAN_PLAY_THROUGH, 'canPlayThrough', ContinuousEvent], [TOP_DURATION_CHANGE, 'durationChange', ContinuousEvent], [TOP_EMPTIED, 'emptied', ContinuousEvent], [TOP_ENCRYPTED, 'encrypted', ContinuousEvent], [TOP_ENDED, 'ended', ContinuousEvent], [TOP_ERROR, 'error', ContinuousEvent], [TOP_GOT_POINTER_CAPTURE, 'gotPointerCapture', ContinuousEvent], [TOP_LOAD, 'load', ContinuousEvent], [TOP_LOADED_DATA, 'loadedData', ContinuousEvent], [TOP_LOADED_METADATA, 'loadedMetadata', ContinuousEvent], [TOP_LOAD_START, 'loadStart', ContinuousEvent], [TOP_LOST_POINTER_CAPTURE, 'lostPointerCapture', ContinuousEvent], [TOP_PLAYING, 'playing', ContinuousEvent], [TOP_PROGRESS, 'progress', ContinuousEvent], [TOP_SEEKING, 'seeking', ContinuousEvent], [TOP_STALLED, 'stalled', ContinuousEvent], [TOP_SUSPEND, 'suspend', ContinuousEvent], [TOP_TIME_UPDATE, 'timeUpdate', ContinuousEvent], [TOP_TRANSITION_END, 'transitionEnd', ContinuousEvent], [TOP_WAITING, 'waiting', ContinuousEvent]];

var eventTypes$4 = {};
var topLevelEventsToDispatchConfig = {};

for (var i = 0; i < eventTuples.length; i++) {
  var eventTuple = eventTuples[i];
  var topEvent = eventTuple[0];
  var event = eventTuple[1];
  var eventPriority = eventTuple[2];

  var capitalizedEvent = event[0].toUpperCase() + event.slice(1);
  var onEvent = 'on' + capitalizedEvent;

  var config = {
    phasedRegistrationNames: {
      bubbled: onEvent,
      captured: onEvent + 'Capture'
    },
    dependencies: [topEvent],
    eventPriority: eventPriority
  };
  eventTypes$4[event] = config;
  topLevelEventsToDispatchConfig[topEvent] = config;
}

// Only used in DEV for exhaustiveness validation.
var knownHTMLTopLevelTypes = [TOP_ABORT, TOP_CANCEL, TOP_CAN_PLAY, TOP_CAN_PLAY_THROUGH, TOP_CLOSE, TOP_DURATION_CHANGE, TOP_EMPTIED, TOP_ENCRYPTED, TOP_ENDED, TOP_ERROR, TOP_INPUT, TOP_INVALID, TOP_LOAD, TOP_LOADED_DATA, TOP_LOADED_METADATA, TOP_LOAD_START, TOP_PAUSE, TOP_PLAY, TOP_PLAYING, TOP_PROGRESS, TOP_RATE_CHANGE, TOP_RESET, TOP_SEEKED, TOP_SEEKING, TOP_STALLED, TOP_SUBMIT, TOP_SUSPEND, TOP_TIME_UPDATE, TOP_TOGGLE, TOP_VOLUME_CHANGE, TOP_WAITING];

var SimpleEventPlugin = {
  eventTypes: eventTypes$4,

  getEventPriority: function (topLevelType) {
    var config = topLevelEventsToDispatchConfig[topLevelType];
    return config !== undefined ? config.eventPriority : ContinuousEvent;
  },


  extractEvents: function (topLevelType, targetInst, nativeEvent, nativeEventTarget) {
    var dispatchConfig = topLevelEventsToDispatchConfig[topLevelType];
    if (!dispatchConfig) {
      return null;
    }
    var EventConstructor = void 0;
    switch (topLevelType) {
      case TOP_KEY_PRESS:
        // Firefox creates a keypress event for function keys too. This removes
        // the unwanted keypress events. Enter is however both printable and
        // non-printable. One would expect Tab to be as well (but it isn't).
        if (getEventCharCode(nativeEvent) === 0) {
          return null;
        }
      /* falls through */
      case TOP_KEY_DOWN:
      case TOP_KEY_UP:
        EventConstructor = SyntheticKeyboardEvent;
        break;
      case TOP_BLUR:
      case TOP_FOCUS:
        EventConstructor = SyntheticFocusEvent;
        break;
      case TOP_CLICK:
        // Firefox creates a click event on right mouse clicks. This removes the
        // unwanted click events.
        if (nativeEvent.button === 2) {
          return null;
        }
      /* falls through */
      case TOP_AUX_CLICK:
      case TOP_DOUBLE_CLICK:
      case TOP_MOUSE_DOWN:
      case TOP_MOUSE_MOVE:
      case TOP_MOUSE_UP:
      // TODO: Disabled elements should not respond to mouse events
      /* falls through */
      case TOP_MOUSE_OUT:
      case TOP_MOUSE_OVER:
      case TOP_CONTEXT_MENU:
        EventConstructor = SyntheticMouseEvent;
        break;
      case TOP_DRAG:
      case TOP_DRAG_END:
      case TOP_DRAG_ENTER:
      case TOP_DRAG_EXIT:
      case TOP_DRAG_LEAVE:
      case TOP_DRAG_OVER:
      case TOP_DRAG_START:
      case TOP_DROP:
        EventConstructor = SyntheticDragEvent;
        break;
      case TOP_TOUCH_CANCEL:
      case TOP_TOUCH_END:
      case TOP_TOUCH_MOVE:
      case TOP_TOUCH_START:
        EventConstructor = SyntheticTouchEvent;
        break;
      case TOP_ANIMATION_END:
      case TOP_ANIMATION_ITERATION:
      case TOP_ANIMATION_START:
        EventConstructor = SyntheticAnimationEvent;
        break;
      case TOP_TRANSITION_END:
        EventConstructor = SyntheticTransitionEvent;
        break;
      case TOP_SCROLL:
        EventConstructor = SyntheticUIEvent;
        break;
      case TOP_WHEEL:
        EventConstructor = SyntheticWheelEvent;
        break;
      case TOP_COPY:
      case TOP_CUT:
      case TOP_PASTE:
        EventConstructor = SyntheticClipboardEvent;
        break;
      case TOP_GOT_POINTER_CAPTURE:
      case TOP_LOST_POINTER_CAPTURE:
      case TOP_POINTER_CANCEL:
      case TOP_POINTER_DOWN:
      case TOP_POINTER_MOVE:
      case TOP_POINTER_OUT:
      case TOP_POINTER_OVER:
      case TOP_POINTER_UP:
        EventConstructor = SyntheticPointerEvent;
        break;
      default:
        {
          if (knownHTMLTopLevelTypes.indexOf(topLevelType) === -1) {
            warningWithoutStack$1(false, 'SimpleEventPlugin: Unhandled event type, `%s`. This warning ' + 'is likely caused by a bug in React. Please file an issue.', topLevelType);
          }
        }
        // HTML Events
        // @see http://www.w3.org/TR/html5/index.html#events-0
        EventConstructor = SyntheticEvent;
        break;
    }
    var event = EventConstructor.getPooled(dispatchConfig, targetInst, nativeEvent, nativeEventTarget);
    accumulateTwoPhaseDispatches(event);
    return event;
  }
};

var passiveBrowserEventsSupported = false;

// Check if browser support events with passive listeners
// https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener#Safely_detecting_option_support
if (enableFlareAPI && canUseDOM) {
  try {
    var options = {};
    // $FlowFixMe: Ignore Flow complaining about needing a value
    Object.defineProperty(options, 'passive', {
      get: function () {
        passiveBrowserEventsSupported = true;
      }
    });
    window.addEventListener('test', options, options);
    window.removeEventListener('test', options, options);
  } catch (e) {
    passiveBrowserEventsSupported = false;
  }
}

// Intentionally not named imports because Rollup would use dynamic dispatch for
// CommonJS interop named imports.
var UserBlockingPriority = Scheduler.unstable_UserBlockingPriority;
var runWithPriority = Scheduler.unstable_runWithPriority;
var getEventPriority = SimpleEventPlugin.getEventPriority;


var CALLBACK_BOOKKEEPING_POOL_SIZE = 10;
var callbackBookkeepingPool = [];

/**
 * Find the deepest React component completely containing the root of the
 * passed-in instance (for use when entire React trees are nested within each
 * other). If React trees are not nested, returns null.
 */
function findRootContainerNode(inst) {
  // TODO: It may be a good idea to cache this to prevent unnecessary DOM
  // traversal, but caching is difficult to do correctly without using a
  // mutation observer to listen for all DOM changes.
  while (inst.return) {
    inst = inst.return;
  }
  if (inst.tag !== HostRoot) {
    // This can happen if we're in a detached tree.
    return null;
  }
  return inst.stateNode.containerInfo;
}

// Used to store ancestor hierarchy in top level callback
function getTopLevelCallbackBookKeeping(topLevelType, nativeEvent, targetInst) {
  if (callbackBookkeepingPool.length) {
    var instance = callbackBookkeepingPool.pop();
    instance.topLevelType = topLevelType;
    instance.nativeEvent = nativeEvent;
    instance.targetInst = targetInst;
    return instance;
  }
  return {
    topLevelType: topLevelType,
    nativeEvent: nativeEvent,
    targetInst: targetInst,
    ancestors: []
  };
}

function releaseTopLevelCallbackBookKeeping(instance) {
  instance.topLevelType = null;
  instance.nativeEvent = null;
  instance.targetInst = null;
  instance.ancestors.length = 0;
  if (callbackBookkeepingPool.length < CALLBACK_BOOKKEEPING_POOL_SIZE) {
    callbackBookkeepingPool.push(instance);
  }
}

function handleTopLevel(bookKeeping) {
  var targetInst = bookKeeping.targetInst;

  // Loop through the hierarchy, in case there's any nested components.
  // It's important that we build the array of ancestors before calling any
  // event handlers, because event handlers can modify the DOM, leading to
  // inconsistencies with ReactMount's node cache. See #1105.
  var ancestor = targetInst;
  do {
    if (!ancestor) {
      var _ancestors = bookKeeping.ancestors;
      _ancestors.push(ancestor);
      break;
    }
    var root = findRootContainerNode(ancestor);
    if (!root) {
      break;
    }
    bookKeeping.ancestors.push(ancestor);
    ancestor = getClosestInstanceFromNode(root);
  } while (ancestor);

  for (var i = 0; i < bookKeeping.ancestors.length; i++) {
    targetInst = bookKeeping.ancestors[i];
    var eventTarget = getEventTarget(bookKeeping.nativeEvent);
    var _topLevelType = bookKeeping.topLevelType;
    var _nativeEvent = bookKeeping.nativeEvent;

    runExtractedPluginEventsInBatch(_topLevelType, targetInst, _nativeEvent, eventTarget);
  }
}

// TODO: can we stop exporting these?
var _enabled = true;

function setEnabled(enabled) {
  _enabled = !!enabled;
}

function isEnabled() {
  return _enabled;
}

function trapBubbledEvent(topLevelType, element) {
  trapEventForPluginEventSystem(element, topLevelType, false);
}

function trapCapturedEvent(topLevelType, element) {
  trapEventForPluginEventSystem(element, topLevelType, true);
}

function trapEventForResponderEventSystem(element, topLevelType, passive) {
  if (enableFlareAPI) {
    var rawEventName = getRawEventName(topLevelType);
    var eventFlags = RESPONDER_EVENT_SYSTEM;

    // If passive option is not supported, then the event will be
    // active and not passive, but we flag it as using not being
    // supported too. This way the responder event plugins know,
    // and can provide polyfills if needed.
    if (passive) {
      if (passiveBrowserEventsSupported) {
        eventFlags |= IS_PASSIVE;
      } else {
        eventFlags |= IS_ACTIVE;
        eventFlags |= PASSIVE_NOT_SUPPORTED;
        passive = false;
      }
    } else {
      eventFlags |= IS_ACTIVE;
    }
    // Check if interactive and wrap in discreteUpdates
    var listener = dispatchEvent.bind(null, topLevelType, eventFlags);
    if (passiveBrowserEventsSupported) {
      addEventCaptureListenerWithPassiveFlag(element, rawEventName, listener, passive);
    } else {
      addEventCaptureListener(element, rawEventName, listener);
    }
  }
}

function trapEventForPluginEventSystem(element, topLevelType, capture) {
  var listener = void 0;
  switch (getEventPriority(topLevelType)) {
    case DiscreteEvent:
      listener = dispatchDiscreteEvent.bind(null, topLevelType, PLUGIN_EVENT_SYSTEM);
      break;
    case UserBlockingEvent:
      listener = dispatchUserBlockingUpdate.bind(null, topLevelType, PLUGIN_EVENT_SYSTEM);
      break;
    case ContinuousEvent:
    default:
      listener = dispatchEvent.bind(null, topLevelType, PLUGIN_EVENT_SYSTEM);
      break;
  }

  var rawEventName = getRawEventName(topLevelType);
  if (capture) {
    addEventCaptureListener(element, rawEventName, listener);
  } else {
    addEventBubbleListener(element, rawEventName, listener);
  }
}

function dispatchDiscreteEvent(topLevelType, eventSystemFlags, nativeEvent) {
  flushDiscreteUpdatesIfNeeded(nativeEvent.timeStamp);
  discreteUpdates(dispatchEvent, topLevelType, eventSystemFlags, nativeEvent);
}

function dispatchUserBlockingUpdate(topLevelType, eventSystemFlags, nativeEvent) {
  if (enableUserBlockingEvents) {
    runWithPriority(UserBlockingPriority, dispatchEvent.bind(null, topLevelType, eventSystemFlags, nativeEvent));
  } else {
    dispatchEvent(topLevelType, eventSystemFlags, nativeEvent);
  }
}

function dispatchEventForPluginEventSystem(topLevelType, eventSystemFlags, nativeEvent, targetInst) {
  var bookKeeping = getTopLevelCallbackBookKeeping(topLevelType, nativeEvent, targetInst);

  try {
    // Event queue being processed in the same cycle allows
    // `preventDefault`.
    batchedEventUpdates(handleTopLevel, bookKeeping);
  } finally {
    releaseTopLevelCallbackBookKeeping(bookKeeping);
  }
}

function dispatchEvent(topLevelType, eventSystemFlags, nativeEvent) {
  if (!_enabled) {
    return;
  }
  var nativeEventTarget = getEventTarget(nativeEvent);
  var targetInst = getClosestInstanceFromNode(nativeEventTarget);

  if (targetInst !== null && typeof targetInst.tag === 'number' && !isFiberMounted(targetInst)) {
    // If we get an event (ex: img onload) before committing that
    // component's mount, ignore it for now (that is, treat it as if it was an
    // event on a non-React tree). We might also consider queueing events and
    // dispatching them after the mount.
    targetInst = null;
  }

  if (enableFlareAPI) {
    if (eventSystemFlags === PLUGIN_EVENT_SYSTEM) {
      dispatchEventForPluginEventSystem(topLevelType, eventSystemFlags, nativeEvent, targetInst);
    } else {
      // React Flare event system
      dispatchEventForResponderEventSystem(topLevelType, targetInst, nativeEvent, nativeEventTarget, eventSystemFlags);
    }
  } else {
    dispatchEventForPluginEventSystem(topLevelType, eventSystemFlags, nativeEvent, targetInst);
  }
}

/**
 * Summary of `ReactBrowserEventEmitter` event handling:
 *
 *  - Top-level delegation is used to trap most native browser events. This
 *    may only occur in the main thread and is the responsibility of
 *    ReactDOMEventListener, which is injected and can therefore support
 *    pluggable event sources. This is the only work that occurs in the main
 *    thread.
 *
 *  - We normalize and de-duplicate events to account for browser quirks. This
 *    may be done in the worker thread.
 *
 *  - Forward these native events (with the associated top-level type used to
 *    trap it) to `EventPluginHub`, which in turn will ask plugins if they want
 *    to extract any synthetic events.
 *
 *  - The `EventPluginHub` will then process each event by annotating them with
 *    "dispatches", a sequence of listeners and IDs that care about that event.
 *
 *  - The `EventPluginHub` then dispatches the events.
 *
 * Overview of React and the event system:
 *
 * +------------+    .
 * |    DOM     |    .
 * +------------+    .
 *       |           .
 *       v           .
 * +------------+    .
 * | ReactEvent |    .
 * |  Listener  |    .
 * +------------+    .                         +-----------+
 *       |           .               +--------+|SimpleEvent|
 *       |           .               |         |Plugin     |
 * +-----|------+    .               v         +-----------+
 * |     |      |    .    +--------------+                    +------------+
 * |     +-----------.--->|EventPluginHub|                    |    Event   |
 * |            |    .    |              |     +-----------+  | Propagators|
 * | ReactEvent |    .    |              |     |TapEvent   |  |------------|
 * |  Emitter   |    .    |              |<---+|Plugin     |  |other plugin|
 * |            |    .    |              |     +-----------+  |  utilities |
 * |     +-----------.--->|              |                    +------------+
 * |     |      |    .    +--------------+
 * +-----|------+    .                ^        +-----------+
 *       |           .                |        |Enter/Leave|
 *       +           .                +-------+|Plugin     |
 * +-------------+   .                         +-----------+
 * | application |   .
 * |-------------|   .
 * |             |   .
 * |             |   .
 * +-------------+   .
 *                   .
 *    React Core     .  General Purpose Event Plugin System
 */

var PossiblyWeakMap = typeof WeakMap === 'function' ? WeakMap : Map;
var elementListeningSets = new PossiblyWeakMap();

function getListeningSetForElement(element) {
  var listeningSet = elementListeningSets.get(element);
  if (listeningSet === undefined) {
    listeningSet = new Set();
    elementListeningSets.set(element, listeningSet);
  }
  return listeningSet;
}

/**
 * We listen for bubbled touch events on the document object.
 *
 * Firefox v8.01 (and possibly others) exhibited strange behavior when
 * mounting `onmousemove` events at some node that was not the document
 * element. The symptoms were that if your mouse is not moving over something
 * contained within that mount point (for example on the background) the
 * top-level listeners for `onmousemove` won't be called. However, if you
 * register the `mousemove` on the document object, then it will of course
 * catch all `mousemove`s. This along with iOS quirks, justifies restricting
 * top-level listeners to the document object only, at least for these
 * movement types of events and possibly all events.
 *
 * @see http://www.quirksmode.org/blog/archives/2010/09/click_event_del.html
 *
 * Also, `keyup`/`keypress`/`keydown` do not bubble to the window on IE, but
 * they bubble to document.
 *
 * @param {string} registrationName Name of listener (e.g. `onClick`).
 * @param {object} mountAt Container where to mount the listener
 */
function listenTo(registrationName, mountAt) {
  var listeningSet = getListeningSetForElement(mountAt);
  var dependencies = registrationNameDependencies[registrationName];

  for (var i = 0; i < dependencies.length; i++) {
    var dependency = dependencies[i];
    if (!listeningSet.has(dependency)) {
      switch (dependency) {
        case TOP_SCROLL:
          trapCapturedEvent(TOP_SCROLL, mountAt);
          break;
        case TOP_FOCUS:
        case TOP_BLUR:
          trapCapturedEvent(TOP_FOCUS, mountAt);
          trapCapturedEvent(TOP_BLUR, mountAt);
          // We set the flag for a single dependency later in this function,
          // but this ensures we mark both as attached rather than just one.
          listeningSet.add(TOP_BLUR);
          listeningSet.add(TOP_FOCUS);
          break;
        case TOP_CANCEL:
        case TOP_CLOSE:
          if (isEventSupported(getRawEventName(dependency))) {
            trapCapturedEvent(dependency, mountAt);
          }
          break;
        case TOP_INVALID:
        case TOP_SUBMIT:
        case TOP_RESET:
          // We listen to them on the target DOM elements.
          // Some of them bubble so we don't want them to fire twice.
          break;
        default:
          // By default, listen on the top level to all non-media events.
          // Media events don't bubble so adding the listener wouldn't do anything.
          var isMediaEvent = mediaEventTypes.indexOf(dependency) !== -1;
          if (!isMediaEvent) {
            trapBubbledEvent(dependency, mountAt);
          }
          break;
      }
      listeningSet.add(dependency);
    }
  }
}

function isListeningToAllDependencies(registrationName, mountAt) {
  var listeningSet = getListeningSetForElement(mountAt);
  var dependencies = registrationNameDependencies[registrationName];

  for (var i = 0; i < dependencies.length; i++) {
    var dependency = dependencies[i];
    if (!listeningSet.has(dependency)) {
      return false;
    }
  }
  return true;
}

function getActiveElement(doc) {
  doc = doc || (typeof document !== 'undefined' ? document : undefined);
  if (typeof doc === 'undefined') {
    return null;
  }
  try {
    return doc.activeElement || doc.body;
  } catch (e) {
    return doc.body;
  }
}

/**
 * Given any node return the first leaf node without children.
 *
 * @param {DOMElement|DOMTextNode} node
 * @return {DOMElement|DOMTextNode}
 */
function getLeafNode(node) {
  while (node && node.firstChild) {
    node = node.firstChild;
  }
  return node;
}

/**
 * Get the next sibling within a container. This will walk up the
 * DOM if a node's siblings have been exhausted.
 *
 * @param {DOMElement|DOMTextNode} node
 * @return {?DOMElement|DOMTextNode}
 */
function getSiblingNode(node) {
  while (node) {
    if (node.nextSibling) {
      return node.nextSibling;
    }
    node = node.parentNode;
  }
}

/**
 * Get object describing the nodes which contain characters at offset.
 *
 * @param {DOMElement|DOMTextNode} root
 * @param {number} offset
 * @return {?object}
 */
function getNodeForCharacterOffset(root, offset) {
  var node = getLeafNode(root);
  var nodeStart = 0;
  var nodeEnd = 0;

  while (node) {
    if (node.nodeType === TEXT_NODE) {
      nodeEnd = nodeStart + node.textContent.length;

      if (nodeStart <= offset && nodeEnd >= offset) {
        return {
          node: node,
          offset: offset - nodeStart
        };
      }

      nodeStart = nodeEnd;
    }

    node = getLeafNode(getSiblingNode(node));
  }
}

/**
 * @param {DOMElement} outerNode
 * @return {?object}
 */
function getOffsets(outerNode) {
  var ownerDocument = outerNode.ownerDocument;

  var win = ownerDocument && ownerDocument.defaultView || window;
  var selection = win.getSelection && win.getSelection();

  if (!selection || selection.rangeCount === 0) {
    return null;
  }

  var anchorNode = selection.anchorNode,
      anchorOffset = selection.anchorOffset,
      focusNode = selection.focusNode,
      focusOffset = selection.focusOffset;

  // In Firefox, anchorNode and focusNode can be "anonymous divs", e.g. the
  // up/down buttons on an <input type="number">. Anonymous divs do not seem to
  // expose properties, triggering a "Permission denied error" if any of its
  // properties are accessed. The only seemingly possible way to avoid erroring
  // is to access a property that typically works for non-anonymous divs and
  // catch any error that may otherwise arise. See
  // https://bugzilla.mozilla.org/show_bug.cgi?id=208427

  try {
    /* eslint-disable no-unused-expressions */
    anchorNode.nodeType;
    focusNode.nodeType;
    /* eslint-enable no-unused-expressions */
  } catch (e) {
    return null;
  }

  return getModernOffsetsFromPoints(outerNode, anchorNode, anchorOffset, focusNode, focusOffset);
}

/**
 * Returns {start, end} where `start` is the character/codepoint index of
 * (anchorNode, anchorOffset) within the textContent of `outerNode`, and
 * `end` is the index of (focusNode, focusOffset).
 *
 * Returns null if you pass in garbage input but we should probably just crash.
 *
 * Exported only for testing.
 */
function getModernOffsetsFromPoints(outerNode, anchorNode, anchorOffset, focusNode, focusOffset) {
  var length = 0;
  var start = -1;
  var end = -1;
  var indexWithinAnchor = 0;
  var indexWithinFocus = 0;
  var node = outerNode;
  var parentNode = null;

  outer: while (true) {
    var next = null;

    while (true) {
      if (node === anchorNode && (anchorOffset === 0 || node.nodeType === TEXT_NODE)) {
        start = length + anchorOffset;
      }
      if (node === focusNode && (focusOffset === 0 || node.nodeType === TEXT_NODE)) {
        end = length + focusOffset;
      }

      if (node.nodeType === TEXT_NODE) {
        length += node.nodeValue.length;
      }

      if ((next = node.firstChild) === null) {
        break;
      }
      // Moving from `node` to its first child `next`.
      parentNode = node;
      node = next;
    }

    while (true) {
      if (node === outerNode) {
        // If `outerNode` has children, this is always the second time visiting
        // it. If it has no children, this is still the first loop, and the only
        // valid selection is anchorNode and focusNode both equal to this node
        // and both offsets 0, in which case we will have handled above.
        break outer;
      }
      if (parentNode === anchorNode && ++indexWithinAnchor === anchorOffset) {
        start = length;
      }
      if (parentNode === focusNode && ++indexWithinFocus === focusOffset) {
        end = length;
      }
      if ((next = node.nextSibling) !== null) {
        break;
      }
      node = parentNode;
      parentNode = node.parentNode;
    }

    // Moving from `node` to its next sibling `next`.
    node = next;
  }

  if (start === -1 || end === -1) {
    // This should never happen. (Would happen if the anchor/focus nodes aren't
    // actually inside the passed-in node.)
    return null;
  }

  return {
    start: start,
    end: end
  };
}

/**
 * In modern non-IE browsers, we can support both forward and backward
 * selections.
 *
 * Note: IE10+ supports the Selection object, but it does not support
 * the `extend` method, which means that even in modern IE, it's not possible
 * to programmatically create a backward selection. Thus, for all IE
 * versions, we use the old IE API to create our selections.
 *
 * @param {DOMElement|DOMTextNode} node
 * @param {object} offsets
 */
function setOffsets(node, offsets) {
  var doc = node.ownerDocument || document;
  var win = doc && doc.defaultView || window;

  // Edge fails with "Object expected" in some scenarios.
  // (For instance: TinyMCE editor used in a list component that supports pasting to add more,
  // fails when pasting 100+ items)
  if (!win.getSelection) {
    return;
  }

  var selection = win.getSelection();
  var length = node.textContent.length;
  var start = Math.min(offsets.start, length);
  var end = offsets.end === undefined ? start : Math.min(offsets.end, length);

  // IE 11 uses modern selection, but doesn't support the extend method.
  // Flip backward selections, so we can set with a single range.
  if (!selection.extend && start > end) {
    var temp = end;
    end = start;
    start = temp;
  }

  var startMarker = getNodeForCharacterOffset(node, start);
  var endMarker = getNodeForCharacterOffset(node, end);

  if (startMarker && endMarker) {
    if (selection.rangeCount === 1 && selection.anchorNode === startMarker.node && selection.anchorOffset === startMarker.offset && selection.focusNode === endMarker.node && selection.focusOffset === endMarker.offset) {
      return;
    }
    var range = doc.createRange();
    range.setStart(startMarker.node, startMarker.offset);
    selection.removeAllRanges();

    if (start > end) {
      selection.addRange(range);
      selection.extend(endMarker.node, endMarker.offset);
    } else {
      range.setEnd(endMarker.node, endMarker.offset);
      selection.addRange(range);
    }
  }
}

function isTextNode(node) {
  return node && node.nodeType === TEXT_NODE;
}

function containsNode(outerNode, innerNode) {
  if (!outerNode || !innerNode) {
    return false;
  } else if (outerNode === innerNode) {
    return true;
  } else if (isTextNode(outerNode)) {
    return false;
  } else if (isTextNode(innerNode)) {
    return containsNode(outerNode, innerNode.parentNode);
  } else if ('contains' in outerNode) {
    return outerNode.contains(innerNode);
  } else if (outerNode.compareDocumentPosition) {
    return !!(outerNode.compareDocumentPosition(innerNode) & 16);
  } else {
    return false;
  }
}

function isInDocument(node) {
  return node && node.ownerDocument && containsNode(node.ownerDocument.documentElement, node);
}

function isSameOriginFrame(iframe) {
  try {
    // Accessing the contentDocument of a HTMLIframeElement can cause the browser
    // to throw, e.g. if it has a cross-origin src attribute.
    // Safari will show an error in the console when the access results in "Blocked a frame with origin". e.g:
    // iframe.contentDocument.defaultView;
    // A safety way is to access one of the cross origin properties: Window or Location
    // Which might result in "SecurityError" DOM Exception and it is compatible to Safari.
    // https://html.spec.whatwg.org/multipage/browsers.html#integration-with-idl

    return typeof iframe.contentWindow.location.href === 'string';
  } catch (err) {
    return false;
  }
}

function getActiveElementDeep() {
  var win = window;
  var element = getActiveElement();
  while (element instanceof win.HTMLIFrameElement) {
    if (isSameOriginFrame(element)) {
      win = element.contentWindow;
    } else {
      return element;
    }
    element = getActiveElement(win.document);
  }
  return element;
}

/**
 * @ReactInputSelection: React input selection module. Based on Selection.js,
 * but modified to be suitable for react and has a couple of bug fixes (doesn't
 * assume buttons have range selections allowed).
 * Input selection module for React.
 */

/**
 * @hasSelectionCapabilities: we get the element types that support selection
 * from https://html.spec.whatwg.org/#do-not-apply, looking at `selectionStart`
 * and `selectionEnd` rows.
 */
function hasSelectionCapabilities(elem) {
  var nodeName = elem && elem.nodeName && elem.nodeName.toLowerCase();
  return nodeName && (nodeName === 'input' && (elem.type === 'text' || elem.type === 'search' || elem.type === 'tel' || elem.type === 'url' || elem.type === 'password') || nodeName === 'textarea' || elem.contentEditable === 'true');
}

function getSelectionInformation() {
  var focusedElem = getActiveElementDeep();
  return {
    focusedElem: focusedElem,
    selectionRange: hasSelectionCapabilities(focusedElem) ? getSelection$1(focusedElem) : null
  };
}

/**
 * @restoreSelection: If any selection information was potentially lost,
 * restore it. This is useful when performing operations that could remove dom
 * nodes and place them back in, resulting in focus being lost.
 */
function restoreSelection(priorSelectionInformation) {
  var curFocusedElem = getActiveElementDeep();
  var priorFocusedElem = priorSelectionInformation.focusedElem;
  var priorSelectionRange = priorSelectionInformation.selectionRange;
  if (curFocusedElem !== priorFocusedElem && isInDocument(priorFocusedElem)) {
    if (priorSelectionRange !== null && hasSelectionCapabilities(priorFocusedElem)) {
      setSelection(priorFocusedElem, priorSelectionRange);
    }

    // Focusing a node can change the scroll position, which is undesirable
    var ancestors = [];
    var ancestor = priorFocusedElem;
    while (ancestor = ancestor.parentNode) {
      if (ancestor.nodeType === ELEMENT_NODE) {
        ancestors.push({
          element: ancestor,
          left: ancestor.scrollLeft,
          top: ancestor.scrollTop
        });
      }
    }

    if (typeof priorFocusedElem.focus === 'function') {
      priorFocusedElem.focus();
    }

    for (var i = 0; i < ancestors.length; i++) {
      var info = ancestors[i];
      info.element.scrollLeft = info.left;
      info.element.scrollTop = info.top;
    }
  }
}

/**
 * @getSelection: Gets the selection bounds of a focused textarea, input or
 * contentEditable node.
 * -@input: Look up selection bounds of this input
 * -@return {start: selectionStart, end: selectionEnd}
 */
function getSelection$1(input) {
  var selection = void 0;

  if ('selectionStart' in input) {
    // Modern browser with input or textarea.
    selection = {
      start: input.selectionStart,
      end: input.selectionEnd
    };
  } else {
    // Content editable or old IE textarea.
    selection = getOffsets(input);
  }

  return selection || { start: 0, end: 0 };
}

/**
 * @setSelection: Sets the selection bounds of a textarea or input and focuses
 * the input.
 * -@input     Set selection bounds of this input or textarea
 * -@offsets   Object of same form that is returned from get*
 */
function setSelection(input, offsets) {
  var start = offsets.start,
      end = offsets.end;

  if (end === undefined) {
    end = start;
  }

  if ('selectionStart' in input) {
    input.selectionStart = start;
    input.selectionEnd = Math.min(end, input.value.length);
  } else {
    setOffsets(input, offsets);
  }
}

var skipSelectionChangeEvent = canUseDOM && 'documentMode' in document && document.documentMode <= 11;

var eventTypes$3 = {
  select: {
    phasedRegistrationNames: {
      bubbled: 'onSelect',
      captured: 'onSelectCapture'
    },
    dependencies: [TOP_BLUR, TOP_CONTEXT_MENU, TOP_DRAG_END, TOP_FOCUS, TOP_KEY_DOWN, TOP_KEY_UP, TOP_MOUSE_DOWN, TOP_MOUSE_UP, TOP_SELECTION_CHANGE]
  }
};

var activeElement$1 = null;
var activeElementInst$1 = null;
var lastSelection = null;
var mouseDown = false;

/**
 * Get an object which is a unique representation of the current selection.
 *
 * The return value will not be consistent across nodes or browsers, but
 * two identical selections on the same node will return identical objects.
 *
 * @param {DOMElement} node
 * @return {object}
 */
function getSelection(node) {
  if ('selectionStart' in node && hasSelectionCapabilities(node)) {
    return {
      start: node.selectionStart,
      end: node.selectionEnd
    };
  } else {
    var win = node.ownerDocument && node.ownerDocument.defaultView || window;
    var selection = win.getSelection();
    return {
      anchorNode: selection.anchorNode,
      anchorOffset: selection.anchorOffset,
      focusNode: selection.focusNode,
      focusOffset: selection.focusOffset
    };
  }
}

/**
 * Get document associated with the event target.
 *
 * @param {object} nativeEventTarget
 * @return {Document}
 */
function getEventTargetDocument(eventTarget) {
  return eventTarget.window === eventTarget ? eventTarget.document : eventTarget.nodeType === DOCUMENT_NODE ? eventTarget : eventTarget.ownerDocument;
}

/**
 * Poll selection to see whether it's changed.
 *
 * @param {object} nativeEvent
 * @param {object} nativeEventTarget
 * @return {?SyntheticEvent}
 */
function constructSelectEvent(nativeEvent, nativeEventTarget) {
  // Ensure we have the right element, and that the user is not dragging a
  // selection (this matches native `select` event behavior). In HTML5, select
  // fires only on input and textarea thus if there's no focused element we
  // won't dispatch.
  var doc = getEventTargetDocument(nativeEventTarget);

  if (mouseDown || activeElement$1 == null || activeElement$1 !== getActiveElement(doc)) {
    return null;
  }

  // Only fire when selection has actually changed.
  var currentSelection = getSelection(activeElement$1);
  if (!lastSelection || !shallowEqual(lastSelection, currentSelection)) {
    lastSelection = currentSelection;

    var syntheticEvent = SyntheticEvent.getPooled(eventTypes$3.select, activeElementInst$1, nativeEvent, nativeEventTarget);

    syntheticEvent.type = 'select';
    syntheticEvent.target = activeElement$1;

    accumulateTwoPhaseDispatches(syntheticEvent);

    return syntheticEvent;
  }

  return null;
}

/**
 * This plugin creates an `onSelect` event that normalizes select events
 * across form elements.
 *
 * Supported elements are:
 * - input (see `isTextInputElement`)
 * - textarea
 * - contentEditable
 *
 * This differs from native browser implementations in the following ways:
 * - Fires on contentEditable fields as well as inputs.
 * - Fires for collapsed selection.
 * - Fires after user input.
 */
var SelectEventPlugin = {
  eventTypes: eventTypes$3,

  extractEvents: function (topLevelType, targetInst, nativeEvent, nativeEventTarget) {
    var doc = getEventTargetDocument(nativeEventTarget);
    // Track whether all listeners exists for this plugin. If none exist, we do
    // not extract events. See #3639.
    if (!doc || !isListeningToAllDependencies('onSelect', doc)) {
      return null;
    }

    var targetNode = targetInst ? getNodeFromInstance$1(targetInst) : window;

    switch (topLevelType) {
      // Track the input node that has focus.
      case TOP_FOCUS:
        if (isTextInputElement(targetNode) || targetNode.contentEditable === 'true') {
          activeElement$1 = targetNode;
          activeElementInst$1 = targetInst;
          lastSelection = null;
        }
        break;
      case TOP_BLUR:
        activeElement$1 = null;
        activeElementInst$1 = null;
        lastSelection = null;
        break;
      // Don't fire the event while the user is dragging. This matches the
      // semantics of the native select event.
      case TOP_MOUSE_DOWN:
        mouseDown = true;
        break;
      case TOP_CONTEXT_MENU:
      case TOP_MOUSE_UP:
      case TOP_DRAG_END:
        mouseDown = false;
        return constructSelectEvent(nativeEvent, nativeEventTarget);
      // Chrome and IE fire non-standard event when selection is changed (and
      // sometimes when it hasn't). IE's event fires out of order with respect
      // to key and input events on deletion, so we discard it.
      //
      // Firefox doesn't support selectionchange, so check selection status
      // after each key entry. The selection changes after keydown and before
      // keyup, but we check on keydown as well in the case of holding down a
      // key, when multiple keydown events are fired but only one keyup is.
      // This is also our approach for IE handling, for the reason above.
      case TOP_SELECTION_CHANGE:
        if (skipSelectionChangeEvent) {
          break;
        }
      // falls through
      case TOP_KEY_DOWN:
      case TOP_KEY_UP:
        return constructSelectEvent(nativeEvent, nativeEventTarget);
    }

    return null;
  }
};

/**
 * Inject modules for resolving DOM hierarchy and plugin ordering.
 */
injection.injectEventPluginOrder(DOMEventPluginOrder);
setComponentTree(getFiberCurrentPropsFromNode$1, getInstanceFromNode$1, getNodeFromInstance$1);

/**
 * Some important event plugins included by default (without having to require
 * them).
 */
injection.injectEventPluginsByName({
  SimpleEventPlugin: SimpleEventPlugin,
  EnterLeaveEventPlugin: EnterLeaveEventPlugin,
  ChangeEventPlugin: ChangeEventPlugin,
  SelectEventPlugin: SelectEventPlugin,
  BeforeInputEventPlugin: BeforeInputEventPlugin
});

function endsWith(subject, search) {
  var length = subject.length;
  return subject.substring(length - search.length, length) === search;
}

var didWarnSelectedSetOnOption = false;
var didWarnInvalidChild = false;

function flattenChildren(children) {
  var content = '';

  // Flatten children. We'll warn if they are invalid
  // during validateProps() which runs for hydration too.
  // Note that this would throw on non-element objects.
  // Elements are stringified (which is normally irrelevant
  // but matters for <fbt>).
  React.Children.forEach(children, function (child) {
    if (child == null) {
      return;
    }
    content += child;
    // Note: we don't warn about invalid children here.
    // Instead, this is done separately below so that
    // it happens during the hydration codepath too.
  });

  return content;
}

/**
 * Implements an <option> host component that warns when `selected` is set.
 */

function validateProps(element, props) {
  {
    // This mirrors the codepath above, but runs for hydration too.
    // Warn about invalid children here so that client and hydration are consistent.
    // TODO: this seems like it could cause a DEV-only throw for hydration
    // if children contains a non-element object. We should try to avoid that.
    if (typeof props.children === 'object' && props.children !== null) {
      React.Children.forEach(props.children, function (child) {
        if (child == null) {
          return;
        }
        if (typeof child === 'string' || typeof child === 'number') {
          return;
        }
        if (typeof child.type !== 'string') {
          return;
        }
        if (!didWarnInvalidChild) {
          didWarnInvalidChild = true;
          warning$1(false, 'Only strings and numbers are supported as <option> children.');
        }
      });
    }

    // TODO: Remove support for `selected` in <option>.
    if (props.selected != null && !didWarnSelectedSetOnOption) {
      warning$1(false, 'Use the `defaultValue` or `value` props on <select> instead of ' + 'setting `selected` on <option>.');
      didWarnSelectedSetOnOption = true;
    }
  }
}

function postMountWrapper$1(element, props) {
  // value="" should make a value attribute (#6219)
  if (props.value != null) {
    element.setAttribute('value', toString(getToStringValue(props.value)));
  }
}

function getHostProps$1(element, props) {
  var hostProps = _assign({ children: undefined }, props);
  var content = flattenChildren(props.children);

  if (content) {
    hostProps.children = content;
  }

  return hostProps;
}

// TODO: direct imports like some-package/src/* are bad. Fix me.
var didWarnValueDefaultValue$1 = void 0;

{
  didWarnValueDefaultValue$1 = false;
}

function getDeclarationErrorAddendum() {
  var ownerName = getCurrentFiberOwnerNameInDevOrNull();
  if (ownerName) {
    return '\n\nCheck the render method of `' + ownerName + '`.';
  }
  return '';
}

var valuePropNames = ['value', 'defaultValue'];

/**
 * Validation function for `value` and `defaultValue`.
 */
function checkSelectPropTypes(props) {
  ReactControlledValuePropTypes.checkPropTypes('select', props);

  for (var i = 0; i < valuePropNames.length; i++) {
    var propName = valuePropNames[i];
    if (props[propName] == null) {
      continue;
    }
    var isArray = Array.isArray(props[propName]);
    if (props.multiple && !isArray) {
      warning$1(false, 'The `%s` prop supplied to <select> must be an array if ' + '`multiple` is true.%s', propName, getDeclarationErrorAddendum());
    } else if (!props.multiple && isArray) {
      warning$1(false, 'The `%s` prop supplied to <select> must be a scalar ' + 'value if `multiple` is false.%s', propName, getDeclarationErrorAddendum());
    }
  }
}

function updateOptions(node, multiple, propValue, setDefaultSelected) {
  var options = node.options;

  if (multiple) {
    var selectedValues = propValue;
    var selectedValue = {};
    for (var i = 0; i < selectedValues.length; i++) {
      // Prefix to avoid chaos with special keys.
      selectedValue['$' + selectedValues[i]] = true;
    }
    for (var _i = 0; _i < options.length; _i++) {
      var selected = selectedValue.hasOwnProperty('$' + options[_i].value);
      if (options[_i].selected !== selected) {
        options[_i].selected = selected;
      }
      if (selected && setDefaultSelected) {
        options[_i].defaultSelected = true;
      }
    }
  } else {
    // Do not set `select.value` as exact behavior isn't consistent across all
    // browsers for all cases.
    var _selectedValue = toString(getToStringValue(propValue));
    var defaultSelected = null;
    for (var _i2 = 0; _i2 < options.length; _i2++) {
      if (options[_i2].value === _selectedValue) {
        options[_i2].selected = true;
        if (setDefaultSelected) {
          options[_i2].defaultSelected = true;
        }
        return;
      }
      if (defaultSelected === null && !options[_i2].disabled) {
        defaultSelected = options[_i2];
      }
    }
    if (defaultSelected !== null) {
      defaultSelected.selected = true;
    }
  }
}

/**
 * Implements a <select> host component that allows optionally setting the
 * props `value` and `defaultValue`. If `multiple` is false, the prop must be a
 * stringable. If `multiple` is true, the prop must be an array of stringables.
 *
 * If `value` is not supplied (or null/undefined), user actions that change the
 * selected option will trigger updates to the rendered options.
 *
 * If it is supplied (and not null/undefined), the rendered options will not
 * update in response to user actions. Instead, the `value` prop must change in
 * order for the rendered options to update.
 *
 * If `defaultValue` is provided, any options with the supplied values will be
 * selected.
 */

function getHostProps$2(element, props) {
  return _assign({}, props, {
    value: undefined
  });
}

function initWrapperState$1(element, props) {
  var node = element;
  {
    checkSelectPropTypes(props);
  }

  node._wrapperState = {
    wasMultiple: !!props.multiple
  };

  {
    if (props.value !== undefined && props.defaultValue !== undefined && !didWarnValueDefaultValue$1) {
      warning$1(false, 'Select elements must be either controlled or uncontrolled ' + '(specify either the value prop, or the defaultValue prop, but not ' + 'both). Decide between using a controlled or uncontrolled select ' + 'element and remove one of these props. More info: ' + 'https://fb.me/react-controlled-components');
      didWarnValueDefaultValue$1 = true;
    }
  }
}

function postMountWrapper$2(element, props) {
  var node = element;
  node.multiple = !!props.multiple;
  var value = props.value;
  if (value != null) {
    updateOptions(node, !!props.multiple, value, false);
  } else if (props.defaultValue != null) {
    updateOptions(node, !!props.multiple, props.defaultValue, true);
  }
}

function postUpdateWrapper(element, props) {
  var node = element;
  var wasMultiple = node._wrapperState.wasMultiple;
  node._wrapperState.wasMultiple = !!props.multiple;

  var value = props.value;
  if (value != null) {
    updateOptions(node, !!props.multiple, value, false);
  } else if (wasMultiple !== !!props.multiple) {
    // For simplicity, reapply `defaultValue` if `multiple` is toggled.
    if (props.defaultValue != null) {
      updateOptions(node, !!props.multiple, props.defaultValue, true);
    } else {
      // Revert the select back to its default unselected state.
      updateOptions(node, !!props.multiple, props.multiple ? [] : '', false);
    }
  }
}

function restoreControlledState$2(element, props) {
  var node = element;
  var value = props.value;

  if (value != null) {
    updateOptions(node, !!props.multiple, value, false);
  }
}

var didWarnValDefaultVal = false;

/**
 * Implements a <textarea> host component that allows setting `value`, and
 * `defaultValue`. This differs from the traditional DOM API because value is
 * usually set as PCDATA children.
 *
 * If `value` is not supplied (or null/undefined), user actions that affect the
 * value will trigger updates to the element.
 *
 * If `value` is supplied (and not null/undefined), the rendered element will
 * not trigger updates to the element. Instead, the `value` prop must change in
 * order for the rendered element to be updated.
 *
 * The rendered element will be initialized with an empty value, the prop
 * `defaultValue` if specified, or the children content (deprecated).
 */

function getHostProps$3(element, props) {
  var node = element;
  (function () {
    if (!(props.dangerouslySetInnerHTML == null)) {
      {
        throw ReactError(Error('`dangerouslySetInnerHTML` does not make sense on <textarea>.'));
      }
    }
  })();

  // Always set children to the same thing. In IE9, the selection range will
  // get reset if `textContent` is mutated.  We could add a check in setTextContent
  // to only set the value if/when the value differs from the node value (which would
  // completely solve this IE9 bug), but Sebastian+Sophie seemed to like this
  // solution. The value can be a boolean or object so that's why it's forced
  // to be a string.
  var hostProps = _assign({}, props, {
    value: undefined,
    defaultValue: undefined,
    children: toString(node._wrapperState.initialValue)
  });

  return hostProps;
}

function initWrapperState$2(element, props) {
  var node = element;
  {
    ReactControlledValuePropTypes.checkPropTypes('textarea', props);
    if (props.value !== undefined && props.defaultValue !== undefined && !didWarnValDefaultVal) {
      warning$1(false, '%s contains a textarea with both value and defaultValue props. ' + 'Textarea elements must be either controlled or uncontrolled ' + '(specify either the value prop, or the defaultValue prop, but not ' + 'both). Decide between using a controlled or uncontrolled textarea ' + 'and remove one of these props. More info: ' + 'https://fb.me/react-controlled-components', getCurrentFiberOwnerNameInDevOrNull() || 'A component');
      didWarnValDefaultVal = true;
    }
  }

  var initialValue = props.value;

  // Only bother fetching default value if we're going to use it
  if (initialValue == null) {
    var defaultValue = props.defaultValue;
    // TODO (yungsters): Remove support for children content in <textarea>.
    var children = props.children;
    if (children != null) {
      {
        warning$1(false, 'Use the `defaultValue` or `value` props instead of setting ' + 'children on <textarea>.');
      }
      (function () {
        if (!(defaultValue == null)) {
          {
            throw ReactError(Error('If you supply `defaultValue` on a <textarea>, do not pass children.'));
          }
        }
      })();
      if (Array.isArray(children)) {
        (function () {
          if (!(children.length <= 1)) {
            {
              throw ReactError(Error('<textarea> can only have at most one child.'));
            }
          }
        })();
        children = children[0];
      }

      defaultValue = children;
    }
    if (defaultValue == null) {
      defaultValue = '';
    }
    initialValue = defaultValue;
  }

  node._wrapperState = {
    initialValue: getToStringValue(initialValue)
  };
}

function updateWrapper$1(element, props) {
  var node = element;
  var value = getToStringValue(props.value);
  var defaultValue = getToStringValue(props.defaultValue);
  if (value != null) {
    // Cast `value` to a string to ensure the value is set correctly. While
    // browsers typically do this as necessary, jsdom doesn't.
    var newValue = toString(value);
    // To avoid side effects (such as losing text selection), only set value if changed
    if (newValue !== node.value) {
      node.value = newValue;
    }
    if (props.defaultValue == null && node.defaultValue !== newValue) {
      node.defaultValue = newValue;
    }
  }
  if (defaultValue != null) {
    node.defaultValue = toString(defaultValue);
  }
}

function postMountWrapper$3(element, props) {
  var node = element;
  // This is in postMount because we need access to the DOM node, which is not
  // available until after the component has mounted.
  var textContent = node.textContent;

  // Only set node.value if textContent is equal to the expected
  // initial value. In IE10/IE11 there is a bug where the placeholder attribute
  // will populate textContent as well.
  // https://developer.microsoft.com/microsoft-edge/platform/issues/101525/
  if (textContent === node._wrapperState.initialValue) {
    node.value = textContent;
  }
}

function restoreControlledState$3(element, props) {
  // DOM component is still mounted; update
  updateWrapper$1(element, props);
}

var HTML_NAMESPACE$1 = 'http://www.w3.org/1999/xhtml';
var MATH_NAMESPACE = 'http://www.w3.org/1998/Math/MathML';
var SVG_NAMESPACE = 'http://www.w3.org/2000/svg';

var Namespaces = {
  html: HTML_NAMESPACE$1,
  mathml: MATH_NAMESPACE,
  svg: SVG_NAMESPACE
};

// Assumes there is no parent namespace.
function getIntrinsicNamespace(type) {
  switch (type) {
    case 'svg':
      return SVG_NAMESPACE;
    case 'math':
      return MATH_NAMESPACE;
    default:
      return HTML_NAMESPACE$1;
  }
}

function getChildNamespace(parentNamespace, type) {
  if (parentNamespace == null || parentNamespace === HTML_NAMESPACE$1) {
    // No (or default) parent namespace: potential entry point.
    return getIntrinsicNamespace(type);
  }
  if (parentNamespace === SVG_NAMESPACE && type === 'foreignObject') {
    // We're leaving SVG.
    return HTML_NAMESPACE$1;
  }
  // By default, pass namespace below.
  return parentNamespace;
}

/* globals MSApp */

/**
 * Create a function which has 'unsafe' privileges (required by windows8 apps)
 */
var createMicrosoftUnsafeLocalFunction = function (func) {
  if (typeof MSApp !== 'undefined' && MSApp.execUnsafeLocalFunction) {
    return function (arg0, arg1, arg2, arg3) {
      MSApp.execUnsafeLocalFunction(function () {
        return func(arg0, arg1, arg2, arg3);
      });
    };
  } else {
    return func;
  }
};

// SVG temp container for IE lacking innerHTML
var reusableSVGContainer = void 0;

/**
 * Set the innerHTML property of a node
 *
 * @param {DOMElement} node
 * @param {string} html
 * @internal
 */
var setInnerHTML = createMicrosoftUnsafeLocalFunction(function (node, html) {
  // IE does not have innerHTML for SVG nodes, so instead we inject the
  // new markup in a temp node and then move the child nodes across into
  // the target node

  if (node.namespaceURI === Namespaces.svg && !('innerHTML' in node)) {
    reusableSVGContainer = reusableSVGContainer || document.createElement('div');
    reusableSVGContainer.innerHTML = '<svg>' + html + '</svg>';
    var svgNode = reusableSVGContainer.firstChild;
    while (node.firstChild) {
      node.removeChild(node.firstChild);
    }
    while (svgNode.firstChild) {
      node.appendChild(svgNode.firstChild);
    }
  } else {
    node.innerHTML = html;
  }
});

/**
 * Set the textContent property of a node. For text updates, it's faster
 * to set the `nodeValue` of the Text node directly instead of using
 * `.textContent` which will remove the existing node and create a new one.
 *
 * @param {DOMElement} node
 * @param {string} text
 * @internal
 */
var setTextContent = function (node, text) {
  if (text) {
    var firstChild = node.firstChild;

    if (firstChild && firstChild === node.lastChild && firstChild.nodeType === TEXT_NODE) {
      firstChild.nodeValue = text;
      return;
    }
  }
  node.textContent = text;
};

// List derived from Gecko source code:
// https://github.com/mozilla/gecko-dev/blob/4e638efc71/layout/style/test/property_database.js
var shorthandToLonghand = {
  animation: ['animationDelay', 'animationDirection', 'animationDuration', 'animationFillMode', 'animationIterationCount', 'animationName', 'animationPlayState', 'animationTimingFunction'],
  background: ['backgroundAttachment', 'backgroundClip', 'backgroundColor', 'backgroundImage', 'backgroundOrigin', 'backgroundPositionX', 'backgroundPositionY', 'backgroundRepeat', 'backgroundSize'],
  backgroundPosition: ['backgroundPositionX', 'backgroundPositionY'],
  border: ['borderBottomColor', 'borderBottomStyle', 'borderBottomWidth', 'borderImageOutset', 'borderImageRepeat', 'borderImageSlice', 'borderImageSource', 'borderImageWidth', 'borderLeftColor', 'borderLeftStyle', 'borderLeftWidth', 'borderRightColor', 'borderRightStyle', 'borderRightWidth', 'borderTopColor', 'borderTopStyle', 'borderTopWidth'],
  borderBlockEnd: ['borderBlockEndColor', 'borderBlockEndStyle', 'borderBlockEndWidth'],
  borderBlockStart: ['borderBlockStartColor', 'borderBlockStartStyle', 'borderBlockStartWidth'],
  borderBottom: ['borderBottomColor', 'borderBottomStyle', 'borderBottomWidth'],
  borderColor: ['borderBottomColor', 'borderLeftColor', 'borderRightColor', 'borderTopColor'],
  borderImage: ['borderImageOutset', 'borderImageRepeat', 'borderImageSlice', 'borderImageSource', 'borderImageWidth'],
  borderInlineEnd: ['borderInlineEndColor', 'borderInlineEndStyle', 'borderInlineEndWidth'],
  borderInlineStart: ['borderInlineStartColor', 'borderInlineStartStyle', 'borderInlineStartWidth'],
  borderLeft: ['borderLeftColor', 'borderLeftStyle', 'borderLeftWidth'],
  borderRadius: ['borderBottomLeftRadius', 'borderBottomRightRadius', 'borderTopLeftRadius', 'borderTopRightRadius'],
  borderRight: ['borderRightColor', 'borderRightStyle', 'borderRightWidth'],
  borderStyle: ['borderBottomStyle', 'borderLeftStyle', 'borderRightStyle', 'borderTopStyle'],
  borderTop: ['borderTopColor', 'borderTopStyle', 'borderTopWidth'],
  borderWidth: ['borderBottomWidth', 'borderLeftWidth', 'borderRightWidth', 'borderTopWidth'],
  columnRule: ['columnRuleColor', 'columnRuleStyle', 'columnRuleWidth'],
  columns: ['columnCount', 'columnWidth'],
  flex: ['flexBasis', 'flexGrow', 'flexShrink'],
  flexFlow: ['flexDirection', 'flexWrap'],
  font: ['fontFamily', 'fontFeatureSettings', 'fontKerning', 'fontLanguageOverride', 'fontSize', 'fontSizeAdjust', 'fontStretch', 'fontStyle', 'fontVariant', 'fontVariantAlternates', 'fontVariantCaps', 'fontVariantEastAsian', 'fontVariantLigatures', 'fontVariantNumeric', 'fontVariantPosition', 'fontWeight', 'lineHeight'],
  fontVariant: ['fontVariantAlternates', 'fontVariantCaps', 'fontVariantEastAsian', 'fontVariantLigatures', 'fontVariantNumeric', 'fontVariantPosition'],
  gap: ['columnGap', 'rowGap'],
  grid: ['gridAutoColumns', 'gridAutoFlow', 'gridAutoRows', 'gridTemplateAreas', 'gridTemplateColumns', 'gridTemplateRows'],
  gridArea: ['gridColumnEnd', 'gridColumnStart', 'gridRowEnd', 'gridRowStart'],
  gridColumn: ['gridColumnEnd', 'gridColumnStart'],
  gridColumnGap: ['columnGap'],
  gridGap: ['columnGap', 'rowGap'],
  gridRow: ['gridRowEnd', 'gridRowStart'],
  gridRowGap: ['rowGap'],
  gridTemplate: ['gridTemplateAreas', 'gridTemplateColumns', 'gridTemplateRows'],
  listStyle: ['listStyleImage', 'listStylePosition', 'listStyleType'],
  margin: ['marginBottom', 'marginLeft', 'marginRight', 'marginTop'],
  marker: ['markerEnd', 'markerMid', 'markerStart'],
  mask: ['maskClip', 'maskComposite', 'maskImage', 'maskMode', 'maskOrigin', 'maskPositionX', 'maskPositionY', 'maskRepeat', 'maskSize'],
  maskPosition: ['maskPositionX', 'maskPositionY'],
  outline: ['outlineColor', 'outlineStyle', 'outlineWidth'],
  overflow: ['overflowX', 'overflowY'],
  padding: ['paddingBottom', 'paddingLeft', 'paddingRight', 'paddingTop'],
  placeContent: ['alignContent', 'justifyContent'],
  placeItems: ['alignItems', 'justifyItems'],
  placeSelf: ['alignSelf', 'justifySelf'],
  textDecoration: ['textDecorationColor', 'textDecorationLine', 'textDecorationStyle'],
  textEmphasis: ['textEmphasisColor', 'textEmphasisStyle'],
  transition: ['transitionDelay', 'transitionDuration', 'transitionProperty', 'transitionTimingFunction'],
  wordWrap: ['overflowWrap']
};

/**
 * CSS properties which accept numbers but are not in units of "px".
 */
var isUnitlessNumber = {
  animationIterationCount: true,
  borderImageOutset: true,
  borderImageSlice: true,
  borderImageWidth: true,
  boxFlex: true,
  boxFlexGroup: true,
  boxOrdinalGroup: true,
  columnCount: true,
  columns: true,
  flex: true,
  flexGrow: true,
  flexPositive: true,
  flexShrink: true,
  flexNegative: true,
  flexOrder: true,
  gridArea: true,
  gridRow: true,
  gridRowEnd: true,
  gridRowSpan: true,
  gridRowStart: true,
  gridColumn: true,
  gridColumnEnd: true,
  gridColumnSpan: true,
  gridColumnStart: true,
  fontWeight: true,
  lineClamp: true,
  lineHeight: true,
  opacity: true,
  order: true,
  orphans: true,
  tabSize: true,
  widows: true,
  zIndex: true,
  zoom: true,

  // SVG-related properties
  fillOpacity: true,
  floodOpacity: true,
  stopOpacity: true,
  strokeDasharray: true,
  strokeDashoffset: true,
  strokeMiterlimit: true,
  strokeOpacity: true,
  strokeWidth: true
};

/**
 * @param {string} prefix vendor-specific prefix, eg: Webkit
 * @param {string} key style name, eg: transitionDuration
 * @return {string} style name prefixed with `prefix`, properly camelCased, eg:
 * WebkitTransitionDuration
 */
function prefixKey(prefix, key) {
  return prefix + key.charAt(0).toUpperCase() + key.substring(1);
}

/**
 * Support style names that may come passed in prefixed by adding permutations
 * of vendor prefixes.
 */
var prefixes = ['Webkit', 'ms', 'Moz', 'O'];

// Using Object.keys here, or else the vanilla for-in loop makes IE8 go into an
// infinite loop, because it iterates over the newly added props too.
Object.keys(isUnitlessNumber).forEach(function (prop) {
  prefixes.forEach(function (prefix) {
    isUnitlessNumber[prefixKey(prefix, prop)] = isUnitlessNumber[prop];
  });
});

/**
 * Convert a value into the proper css writable value. The style name `name`
 * should be logical (no hyphens), as specified
 * in `CSSProperty.isUnitlessNumber`.
 *
 * @param {string} name CSS property name such as `topMargin`.
 * @param {*} value CSS property value such as `10px`.
 * @return {string} Normalized style value with dimensions applied.
 */
function dangerousStyleValue(name, value, isCustomProperty) {
  // Note that we've removed escapeTextForBrowser() calls here since the
  // whole string will be escaped when the attribute is injected into
  // the markup. If you provide unsafe user data here they can inject
  // arbitrary CSS which may be problematic (I couldn't repro this):
  // https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet
  // http://www.thespanner.co.uk/2007/11/26/ultimate-xss-css-injection/
  // This is not an XSS hole but instead a potential CSS injection issue
  // which has lead to a greater discussion about how we're going to
  // trust URLs moving forward. See #2115901

  var isEmpty = value == null || typeof value === 'boolean' || value === '';
  if (isEmpty) {
    return '';
  }

  if (!isCustomProperty && typeof value === 'number' && value !== 0 && !(isUnitlessNumber.hasOwnProperty(name) && isUnitlessNumber[name])) {
    return value + 'px'; // Presumes implicit 'px' suffix for unitless numbers
  }

  return ('' + value).trim();
}

var uppercasePattern = /([A-Z])/g;
var msPattern = /^ms-/;

/**
 * Hyphenates a camelcased CSS property name, for example:
 *
 *   > hyphenateStyleName('backgroundColor')
 *   < "background-color"
 *   > hyphenateStyleName('MozTransition')
 *   < "-moz-transition"
 *   > hyphenateStyleName('msTransition')
 *   < "-ms-transition"
 *
 * As Modernizr suggests (http://modernizr.com/docs/#prefixed), an `ms` prefix
 * is converted to `-ms-`.
 */
function hyphenateStyleName(name) {
  return name.replace(uppercasePattern, '-$1').toLowerCase().replace(msPattern, '-ms-');
}

var warnValidStyle = function () {};

{
  // 'msTransform' is correct, but the other prefixes should be capitalized
  var badVendoredStyleNamePattern = /^(?:webkit|moz|o)[A-Z]/;
  var msPattern$1 = /^-ms-/;
  var hyphenPattern = /-(.)/g;

  // style values shouldn't contain a semicolon
  var badStyleValueWithSemicolonPattern = /;\s*$/;

  var warnedStyleNames = {};
  var warnedStyleValues = {};
  var warnedForNaNValue = false;
  var warnedForInfinityValue = false;

  var camelize = function (string) {
    return string.replace(hyphenPattern, function (_, character) {
      return character.toUpperCase();
    });
  };

  var warnHyphenatedStyleName = function (name) {
    if (warnedStyleNames.hasOwnProperty(name) && warnedStyleNames[name]) {
      return;
    }

    warnedStyleNames[name] = true;
    warning$1(false, 'Unsupported style property %s. Did you mean %s?', name,
    // As Andi Smith suggests
    // (http://www.andismith.com/blog/2012/02/modernizr-prefixed/), an `-ms` prefix
    // is converted to lowercase `ms`.
    camelize(name.replace(msPattern$1, 'ms-')));
  };

  var warnBadVendoredStyleName = function (name) {
    if (warnedStyleNames.hasOwnProperty(name) && warnedStyleNames[name]) {
      return;
    }

    warnedStyleNames[name] = true;
    warning$1(false, 'Unsupported vendor-prefixed style property %s. Did you mean %s?', name, name.charAt(0).toUpperCase() + name.slice(1));
  };

  var warnStyleValueWithSemicolon = function (name, value) {
    if (warnedStyleValues.hasOwnProperty(value) && warnedStyleValues[value]) {
      return;
    }

    warnedStyleValues[value] = true;
    warning$1(false, "Style property values shouldn't contain a semicolon. " + 'Try "%s: %s" instead.', name, value.replace(badStyleValueWithSemicolonPattern, ''));
  };

  var warnStyleValueIsNaN = function (name, value) {
    if (warnedForNaNValue) {
      return;
    }

    warnedForNaNValue = true;
    warning$1(false, '`NaN` is an invalid value for the `%s` css style property.', name);
  };

  var warnStyleValueIsInfinity = function (name, value) {
    if (warnedForInfinityValue) {
      return;
    }

    warnedForInfinityValue = true;
    warning$1(false, '`Infinity` is an invalid value for the `%s` css style property.', name);
  };

  warnValidStyle = function (name, value) {
    if (name.indexOf('-') > -1) {
      warnHyphenatedStyleName(name);
    } else if (badVendoredStyleNamePattern.test(name)) {
      warnBadVendoredStyleName(name);
    } else if (badStyleValueWithSemicolonPattern.test(value)) {
      warnStyleValueWithSemicolon(name, value);
    }

    if (typeof value === 'number') {
      if (isNaN(value)) {
        warnStyleValueIsNaN(name, value);
      } else if (!isFinite(value)) {
        warnStyleValueIsInfinity(name, value);
      }
    }
  };
}

var warnValidStyle$1 = warnValidStyle;

/**
 * Operations for dealing with CSS properties.
 */

/**
 * This creates a string that is expected to be equivalent to the style
 * attribute generated by server-side rendering. It by-passes warnings and
 * security checks so it's not safe to use this value for anything other than
 * comparison. It is only used in DEV for SSR validation.
 */
function createDangerousStringForStyles(styles) {
  {
    var serialized = '';
    var delimiter = '';
    for (var styleName in styles) {
      if (!styles.hasOwnProperty(styleName)) {
        continue;
      }
      var styleValue = styles[styleName];
      if (styleValue != null) {
        var isCustomProperty = styleName.indexOf('--') === 0;
        serialized += delimiter + (isCustomProperty ? styleName : hyphenateStyleName(styleName)) + ':';
        serialized += dangerousStyleValue(styleName, styleValue, isCustomProperty);

        delimiter = ';';
      }
    }
    return serialized || null;
  }
}

/**
 * Sets the value for multiple styles on a node.  If a value is specified as
 * '' (empty string), the corresponding style property will be unset.
 *
 * @param {DOMElement} node
 * @param {object} styles
 */
function setValueForStyles(node, styles) {
  var style = node.style;
  for (var styleName in styles) {
    if (!styles.hasOwnProperty(styleName)) {
      continue;
    }
    var isCustomProperty = styleName.indexOf('--') === 0;
    {
      if (!isCustomProperty) {
        warnValidStyle$1(styleName, styles[styleName]);
      }
    }
    var styleValue = dangerousStyleValue(styleName, styles[styleName], isCustomProperty);
    if (styleName === 'float') {
      styleName = 'cssFloat';
    }
    if (isCustomProperty) {
      style.setProperty(styleName, styleValue);
    } else {
      style[styleName] = styleValue;
    }
  }
}

function isValueEmpty(value) {
  return value == null || typeof value === 'boolean' || value === '';
}

/**
 * Given {color: 'red', overflow: 'hidden'} returns {
 *   color: 'color',
 *   overflowX: 'overflow',
 *   overflowY: 'overflow',
 * }. This can be read as "the overflowY property was set by the overflow
 * shorthand". That is, the values are the property that each was derived from.
 */
function expandShorthandMap(styles) {
  var expanded = {};
  for (var key in styles) {
    var longhands = shorthandToLonghand[key] || [key];
    for (var i = 0; i < longhands.length; i++) {
      expanded[longhands[i]] = key;
    }
  }
  return expanded;
}

/**
 * When mixing shorthand and longhand property names, we warn during updates if
 * we expect an incorrect result to occur. In particular, we warn for:
 *
 * Updating a shorthand property (longhand gets overwritten):
 *   {font: 'foo', fontVariant: 'bar'} -> {font: 'baz', fontVariant: 'bar'}
 *   becomes .style.font = 'baz'
 * Removing a shorthand property (longhand gets lost too):
 *   {font: 'foo', fontVariant: 'bar'} -> {fontVariant: 'bar'}
 *   becomes .style.font = ''
 * Removing a longhand property (should revert to shorthand; doesn't):
 *   {font: 'foo', fontVariant: 'bar'} -> {font: 'foo'}
 *   becomes .style.fontVariant = ''
 */
function validateShorthandPropertyCollisionInDev(styleUpdates, nextStyles) {
  if (!warnAboutShorthandPropertyCollision) {
    return;
  }

  if (!nextStyles) {
    return;
  }

  var expandedUpdates = expandShorthandMap(styleUpdates);
  var expandedStyles = expandShorthandMap(nextStyles);
  var warnedAbout = {};
  for (var key in expandedUpdates) {
    var originalKey = expandedUpdates[key];
    var correctOriginalKey = expandedStyles[key];
    if (correctOriginalKey && originalKey !== correctOriginalKey) {
      var warningKey = originalKey + ',' + correctOriginalKey;
      if (warnedAbout[warningKey]) {
        continue;
      }
      warnedAbout[warningKey] = true;
      warning$1(false, '%s a style property during rerender (%s) when a ' + 'conflicting property is set (%s) can lead to styling bugs. To ' + "avoid this, don't mix shorthand and non-shorthand properties " + 'for the same value; instead, replace the shorthand with ' + 'separate values.', isValueEmpty(styleUpdates[originalKey]) ? 'Removing' : 'Updating', originalKey, correctOriginalKey);
    }
  }
}

// For HTML, certain tags should omit their close tag. We keep a whitelist for
// those special-case tags.

var omittedCloseTags = {
  area: true,
  base: true,
  br: true,
  col: true,
  embed: true,
  hr: true,
  img: true,
  input: true,
  keygen: true,
  link: true,
  meta: true,
  param: true,
  source: true,
  track: true,
  wbr: true
  // NOTE: menuitem's close tag should be omitted, but that causes problems.
};

// For HTML, certain tags cannot have children. This has the same purpose as
// `omittedCloseTags` except that `menuitem` should still have its closing tag.

var voidElementTags = _assign({
  menuitem: true
}, omittedCloseTags);

// TODO: We can remove this if we add invariantWithStack()
// or add stack by default to invariants where possible.
var HTML$1 = '__html';

var ReactDebugCurrentFrame$3 = null;
{
  ReactDebugCurrentFrame$3 = ReactSharedInternals.ReactDebugCurrentFrame;
}

function assertValidProps(tag, props) {
  if (!props) {
    return;
  }
  // Note the use of `==` which checks for null or undefined.
  if (voidElementTags[tag]) {
    (function () {
      if (!(props.children == null && props.dangerouslySetInnerHTML == null)) {
        {
          throw ReactError(Error(tag + ' is a void element tag and must neither have `children` nor use `dangerouslySetInnerHTML`.' + (ReactDebugCurrentFrame$3.getStackAddendum())));
        }
      }
    })();
  }
  if (props.dangerouslySetInnerHTML != null) {
    (function () {
      if (!(props.children == null)) {
        {
          throw ReactError(Error('Can only set one of `children` or `props.dangerouslySetInnerHTML`.'));
        }
      }
    })();
    (function () {
      if (!(typeof props.dangerouslySetInnerHTML === 'object' && HTML$1 in props.dangerouslySetInnerHTML)) {
        {
          throw ReactError(Error('`props.dangerouslySetInnerHTML` must be in the form `{__html: ...}`. Please visit https://fb.me/react-invariant-dangerously-set-inner-html for more information.'));
        }
      }
    })();
  }
  {
    !(props.suppressContentEditableWarning || !props.contentEditable || props.children == null) ? warning$1(false, 'A component is `contentEditable` and contains `children` managed by ' + 'React. It is now your responsibility to guarantee that none of ' + 'those nodes are unexpectedly modified or duplicated. This is ' + 'probably not intentional.') : void 0;
  }
  (function () {
    if (!(props.style == null || typeof props.style === 'object')) {
      {
        throw ReactError(Error('The `style` prop expects a mapping from style properties to values, not a string. For example, style={{marginRight: spacing + \'em\'}} when using JSX.' + (ReactDebugCurrentFrame$3.getStackAddendum())));
      }
    }
  })();
}

function isCustomComponent(tagName, props) {
  if (tagName.indexOf('-') === -1) {
    return typeof props.is === 'string';
  }
  switch (tagName) {
    // These are reserved SVG and MathML elements.
    // We don't mind this whitelist too much because we expect it to never grow.
    // The alternative is to track the namespace in a few places which is convoluted.
    // https://w3c.github.io/webcomponents/spec/custom/#custom-elements-core-concepts
    case 'annotation-xml':
    case 'color-profile':
    case 'font-face':
    case 'font-face-src':
    case 'font-face-uri':
    case 'font-face-format':
    case 'font-face-name':
    case 'missing-glyph':
      return false;
    default:
      return true;
  }
}

// When adding attributes to the HTML or SVG whitelist, be sure to
// also add them to this module to ensure casing and incorrect name
// warnings.
var possibleStandardNames = {
  // HTML
  accept: 'accept',
  acceptcharset: 'acceptCharset',
  'accept-charset': 'acceptCharset',
  accesskey: 'accessKey',
  action: 'action',
  allowfullscreen: 'allowFullScreen',
  alt: 'alt',
  as: 'as',
  async: 'async',
  autocapitalize: 'autoCapitalize',
  autocomplete: 'autoComplete',
  autocorrect: 'autoCorrect',
  autofocus: 'autoFocus',
  autoplay: 'autoPlay',
  autosave: 'autoSave',
  capture: 'capture',
  cellpadding: 'cellPadding',
  cellspacing: 'cellSpacing',
  challenge: 'challenge',
  charset: 'charSet',
  checked: 'checked',
  children: 'children',
  cite: 'cite',
  class: 'className',
  classid: 'classID',
  classname: 'className',
  cols: 'cols',
  colspan: 'colSpan',
  content: 'content',
  contenteditable: 'contentEditable',
  contextmenu: 'contextMenu',
  controls: 'controls',
  controlslist: 'controlsList',
  coords: 'coords',
  crossorigin: 'crossOrigin',
  dangerouslysetinnerhtml: 'dangerouslySetInnerHTML',
  data: 'data',
  datetime: 'dateTime',
  default: 'default',
  defaultchecked: 'defaultChecked',
  defaultvalue: 'defaultValue',
  defer: 'defer',
  dir: 'dir',
  disabled: 'disabled',
  disablepictureinpicture: 'disablePictureInPicture',
  download: 'download',
  draggable: 'draggable',
  enctype: 'encType',
  for: 'htmlFor',
  form: 'form',
  formmethod: 'formMethod',
  formaction: 'formAction',
  formenctype: 'formEncType',
  formnovalidate: 'formNoValidate',
  formtarget: 'formTarget',
  frameborder: 'frameBorder',
  headers: 'headers',
  height: 'height',
  hidden: 'hidden',
  high: 'high',
  href: 'href',
  hreflang: 'hrefLang',
  htmlfor: 'htmlFor',
  httpequiv: 'httpEquiv',
  'http-equiv': 'httpEquiv',
  icon: 'icon',
  id: 'id',
  innerhtml: 'innerHTML',
  inputmode: 'inputMode',
  integrity: 'integrity',
  is: 'is',
  itemid: 'itemID',
  itemprop: 'itemProp',
  itemref: 'itemRef',
  itemscope: 'itemScope',
  itemtype: 'itemType',
  keyparams: 'keyParams',
  keytype: 'keyType',
  kind: 'kind',
  label: 'label',
  lang: 'lang',
  list: 'list',
  loop: 'loop',
  low: 'low',
  manifest: 'manifest',
  marginwidth: 'marginWidth',
  marginheight: 'marginHeight',
  max: 'max',
  maxlength: 'maxLength',
  media: 'media',
  mediagroup: 'mediaGroup',
  method: 'method',
  min: 'min',
  minlength: 'minLength',
  multiple: 'multiple',
  muted: 'muted',
  name: 'name',
  nomodule: 'noModule',
  nonce: 'nonce',
  novalidate: 'noValidate',
  open: 'open',
  optimum: 'optimum',
  pattern: 'pattern',
  placeholder: 'placeholder',
  playsinline: 'playsInline',
  poster: 'poster',
  preload: 'preload',
  profile: 'profile',
  radiogroup: 'radioGroup',
  readonly: 'readOnly',
  referrerpolicy: 'referrerPolicy',
  rel: 'rel',
  required: 'required',
  reversed: 'reversed',
  role: 'role',
  rows: 'rows',
  rowspan: 'rowSpan',
  sandbox: 'sandbox',
  scope: 'scope',
  scoped: 'scoped',
  scrolling: 'scrolling',
  seamless: 'seamless',
  selected: 'selected',
  shape: 'shape',
  size: 'size',
  sizes: 'sizes',
  span: 'span',
  spellcheck: 'spellCheck',
  src: 'src',
  srcdoc: 'srcDoc',
  srclang: 'srcLang',
  srcset: 'srcSet',
  start: 'start',
  step: 'step',
  style: 'style',
  summary: 'summary',
  tabindex: 'tabIndex',
  target: 'target',
  title: 'title',
  type: 'type',
  usemap: 'useMap',
  value: 'value',
  width: 'width',
  wmode: 'wmode',
  wrap: 'wrap',

  // SVG
  about: 'about',
  accentheight: 'accentHeight',
  'accent-height': 'accentHeight',
  accumulate: 'accumulate',
  additive: 'additive',
  alignmentbaseline: 'alignmentBaseline',
  'alignment-baseline': 'alignmentBaseline',
  allowreorder: 'allowReorder',
  alphabetic: 'alphabetic',
  amplitude: 'amplitude',
  arabicform: 'arabicForm',
  'arabic-form': 'arabicForm',
  ascent: 'ascent',
  attributename: 'attributeName',
  attributetype: 'attributeType',
  autoreverse: 'autoReverse',
  azimuth: 'azimuth',
  basefrequency: 'baseFrequency',
  baselineshift: 'baselineShift',
  'baseline-shift': 'baselineShift',
  baseprofile: 'baseProfile',
  bbox: 'bbox',
  begin: 'begin',
  bias: 'bias',
  by: 'by',
  calcmode: 'calcMode',
  capheight: 'capHeight',
  'cap-height': 'capHeight',
  clip: 'clip',
  clippath: 'clipPath',
  'clip-path': 'clipPath',
  clippathunits: 'clipPathUnits',
  cliprule: 'clipRule',
  'clip-rule': 'clipRule',
  color: 'color',
  colorinterpolation: 'colorInterpolation',
  'color-interpolation': 'colorInterpolation',
  colorinterpolationfilters: 'colorInterpolationFilters',
  'color-interpolation-filters': 'colorInterpolationFilters',
  colorprofile: 'colorProfile',
  'color-profile': 'colorProfile',
  colorrendering: 'colorRendering',
  'color-rendering': 'colorRendering',
  contentscripttype: 'contentScriptType',
  contentstyletype: 'contentStyleType',
  cursor: 'cursor',
  cx: 'cx',
  cy: 'cy',
  d: 'd',
  datatype: 'datatype',
  decelerate: 'decelerate',
  descent: 'descent',
  diffuseconstant: 'diffuseConstant',
  direction: 'direction',
  display: 'display',
  divisor: 'divisor',
  dominantbaseline: 'dominantBaseline',
  'dominant-baseline': 'dominantBaseline',
  dur: 'dur',
  dx: 'dx',
  dy: 'dy',
  edgemode: 'edgeMode',
  elevation: 'elevation',
  enablebackground: 'enableBackground',
  'enable-background': 'enableBackground',
  end: 'end',
  exponent: 'exponent',
  externalresourcesrequired: 'externalResourcesRequired',
  fill: 'fill',
  fillopacity: 'fillOpacity',
  'fill-opacity': 'fillOpacity',
  fillrule: 'fillRule',
  'fill-rule': 'fillRule',
  filter: 'filter',
  filterres: 'filterRes',
  filterunits: 'filterUnits',
  floodopacity: 'floodOpacity',
  'flood-opacity': 'floodOpacity',
  floodcolor: 'floodColor',
  'flood-color': 'floodColor',
  focusable: 'focusable',
  fontfamily: 'fontFamily',
  'font-family': 'fontFamily',
  fontsize: 'fontSize',
  'font-size': 'fontSize',
  fontsizeadjust: 'fontSizeAdjust',
  'font-size-adjust': 'fontSizeAdjust',
  fontstretch: 'fontStretch',
  'font-stretch': 'fontStretch',
  fontstyle: 'fontStyle',
  'font-style': 'fontStyle',
  fontvariant: 'fontVariant',
  'font-variant': 'fontVariant',
  fontweight: 'fontWeight',
  'font-weight': 'fontWeight',
  format: 'format',
  from: 'from',
  fx: 'fx',
  fy: 'fy',
  g1: 'g1',
  g2: 'g2',
  glyphname: 'glyphName',
  'glyph-name': 'glyphName',
  glyphorientationhorizontal: 'glyphOrientationHorizontal',
  'glyph-orientation-horizontal': 'glyphOrientationHorizontal',
  glyphorientationvertical: 'glyphOrientationVertical',
  'glyph-orientation-vertical': 'glyphOrientationVertical',
  glyphref: 'glyphRef',
  gradienttransform: 'gradientTransform',
  gradientunits: 'gradientUnits',
  hanging: 'hanging',
  horizadvx: 'horizAdvX',
  'horiz-adv-x': 'horizAdvX',
  horizoriginx: 'horizOriginX',
  'horiz-origin-x': 'horizOriginX',
  ideographic: 'ideographic',
  imagerendering: 'imageRendering',
  'image-rendering': 'imageRendering',
  in2: 'in2',
  in: 'in',
  inlist: 'inlist',
  intercept: 'intercept',
  k1: 'k1',
  k2: 'k2',
  k3: 'k3',
  k4: 'k4',
  k: 'k',
  kernelmatrix: 'kernelMatrix',
  kernelunitlength: 'kernelUnitLength',
  kerning: 'kerning',
  keypoints: 'keyPoints',
  keysplines: 'keySplines',
  keytimes: 'keyTimes',
  lengthadjust: 'lengthAdjust',
  letterspacing: 'letterSpacing',
  'letter-spacing': 'letterSpacing',
  lightingcolor: 'lightingColor',
  'lighting-color': 'lightingColor',
  limitingconeangle: 'limitingConeAngle',
  local: 'local',
  markerend: 'markerEnd',
  'marker-end': 'markerEnd',
  markerheight: 'markerHeight',
  markermid: 'markerMid',
  'marker-mid': 'markerMid',
  markerstart: 'markerStart',
  'marker-start': 'markerStart',
  markerunits: 'markerUnits',
  markerwidth: 'markerWidth',
  mask: 'mask',
  maskcontentunits: 'maskContentUnits',
  maskunits: 'maskUnits',
  mathematical: 'mathematical',
  mode: 'mode',
  numoctaves: 'numOctaves',
  offset: 'offset',
  opacity: 'opacity',
  operator: 'operator',
  order: 'order',
  orient: 'orient',
  orientation: 'orientation',
  origin: 'origin',
  overflow: 'overflow',
  overlineposition: 'overlinePosition',
  'overline-position': 'overlinePosition',
  overlinethickness: 'overlineThickness',
  'overline-thickness': 'overlineThickness',
  paintorder: 'paintOrder',
  'paint-order': 'paintOrder',
  panose1: 'panose1',
  'panose-1': 'panose1',
  pathlength: 'pathLength',
  patterncontentunits: 'patternContentUnits',
  patterntransform: 'patternTransform',
  patternunits: 'patternUnits',
  pointerevents: 'pointerEvents',
  'pointer-events': 'pointerEvents',
  points: 'points',
  pointsatx: 'pointsAtX',
  pointsaty: 'pointsAtY',
  pointsatz: 'pointsAtZ',
  prefix: 'prefix',
  preservealpha: 'preserveAlpha',
  preserveaspectratio: 'preserveAspectRatio',
  primitiveunits: 'primitiveUnits',
  property: 'property',
  r: 'r',
  radius: 'radius',
  refx: 'refX',
  refy: 'refY',
  renderingintent: 'renderingIntent',
  'rendering-intent': 'renderingIntent',
  repeatcount: 'repeatCount',
  repeatdur: 'repeatDur',
  requiredextensions: 'requiredExtensions',
  requiredfeatures: 'requiredFeatures',
  resource: 'resource',
  restart: 'restart',
  result: 'result',
  results: 'results',
  rotate: 'rotate',
  rx: 'rx',
  ry: 'ry',
  scale: 'scale',
  security: 'security',
  seed: 'seed',
  shaperendering: 'shapeRendering',
  'shape-rendering': 'shapeRendering',
  slope: 'slope',
  spacing: 'spacing',
  specularconstant: 'specularConstant',
  specularexponent: 'specularExponent',
  speed: 'speed',
  spreadmethod: 'spreadMethod',
  startoffset: 'startOffset',
  stddeviation: 'stdDeviation',
  stemh: 'stemh',
  stemv: 'stemv',
  stitchtiles: 'stitchTiles',
  stopcolor: 'stopColor',
  'stop-color': 'stopColor',
  stopopacity: 'stopOpacity',
  'stop-opacity': 'stopOpacity',
  strikethroughposition: 'strikethroughPosition',
  'strikethrough-position': 'strikethroughPosition',
  strikethroughthickness: 'strikethroughThickness',
  'strikethrough-thickness': 'strikethroughThickness',
  string: 'string',
  stroke: 'stroke',
  strokedasharray: 'strokeDasharray',
  'stroke-dasharray': 'strokeDasharray',
  strokedashoffset: 'strokeDashoffset',
  'stroke-dashoffset': 'strokeDashoffset',
  strokelinecap: 'strokeLinecap',
  'stroke-linecap': 'strokeLinecap',
  strokelinejoin: 'strokeLinejoin',
  'stroke-linejoin': 'strokeLinejoin',
  strokemiterlimit: 'strokeMiterlimit',
  'stroke-miterlimit': 'strokeMiterlimit',
  strokewidth: 'strokeWidth',
  'stroke-width': 'strokeWidth',
  strokeopacity: 'strokeOpacity',
  'stroke-opacity': 'strokeOpacity',
  suppresscontenteditablewarning: 'suppressContentEditableWarning',
  suppresshydrationwarning: 'suppressHydrationWarning',
  surfacescale: 'surfaceScale',
  systemlanguage: 'systemLanguage',
  tablevalues: 'tableValues',
  targetx: 'targetX',
  targety: 'targetY',
  textanchor: 'textAnchor',
  'text-anchor': 'textAnchor',
  textdecoration: 'textDecoration',
  'text-decoration': 'textDecoration',
  textlength: 'textLength',
  textrendering: 'textRendering',
  'text-rendering': 'textRendering',
  to: 'to',
  transform: 'transform',
  typeof: 'typeof',
  u1: 'u1',
  u2: 'u2',
  underlineposition: 'underlinePosition',
  'underline-position': 'underlinePosition',
  underlinethickness: 'underlineThickness',
  'underline-thickness': 'underlineThickness',
  unicode: 'unicode',
  unicodebidi: 'unicodeBidi',
  'unicode-bidi': 'unicodeBidi',
  unicoderange: 'unicodeRange',
  'unicode-range': 'unicodeRange',
  unitsperem: 'unitsPerEm',
  'units-per-em': 'unitsPerEm',
  unselectable: 'unselectable',
  valphabetic: 'vAlphabetic',
  'v-alphabetic': 'vAlphabetic',
  values: 'values',
  vectoreffect: 'vectorEffect',
  'vector-effect': 'vectorEffect',
  version: 'version',
  vertadvy: 'vertAdvY',
  'vert-adv-y': 'vertAdvY',
  vertoriginx: 'vertOriginX',
  'vert-origin-x': 'vertOriginX',
  vertoriginy: 'vertOriginY',
  'vert-origin-y': 'vertOriginY',
  vhanging: 'vHanging',
  'v-hanging': 'vHanging',
  videographic: 'vIdeographic',
  'v-ideographic': 'vIdeographic',
  viewbox: 'viewBox',
  viewtarget: 'viewTarget',
  visibility: 'visibility',
  vmathematical: 'vMathematical',
  'v-mathematical': 'vMathematical',
  vocab: 'vocab',
  widths: 'widths',
  wordspacing: 'wordSpacing',
  'word-spacing': 'wordSpacing',
  writingmode: 'writingMode',
  'writing-mode': 'writingMode',
  x1: 'x1',
  x2: 'x2',
  x: 'x',
  xchannelselector: 'xChannelSelector',
  xheight: 'xHeight',
  'x-height': 'xHeight',
  xlinkactuate: 'xlinkActuate',
  'xlink:actuate': 'xlinkActuate',
  xlinkarcrole: 'xlinkArcrole',
  'xlink:arcrole': 'xlinkArcrole',
  xlinkhref: 'xlinkHref',
  'xlink:href': 'xlinkHref',
  xlinkrole: 'xlinkRole',
  'xlink:role': 'xlinkRole',
  xlinkshow: 'xlinkShow',
  'xlink:show': 'xlinkShow',
  xlinktitle: 'xlinkTitle',
  'xlink:title': 'xlinkTitle',
  xlinktype: 'xlinkType',
  'xlink:type': 'xlinkType',
  xmlbase: 'xmlBase',
  'xml:base': 'xmlBase',
  xmllang: 'xmlLang',
  'xml:lang': 'xmlLang',
  xmlns: 'xmlns',
  'xml:space': 'xmlSpace',
  xmlnsxlink: 'xmlnsXlink',
  'xmlns:xlink': 'xmlnsXlink',
  xmlspace: 'xmlSpace',
  y1: 'y1',
  y2: 'y2',
  y: 'y',
  ychannelselector: 'yChannelSelector',
  z: 'z',
  zoomandpan: 'zoomAndPan'
};

var ariaProperties = {
  'aria-current': 0, // state
  'aria-details': 0,
  'aria-disabled': 0, // state
  'aria-hidden': 0, // state
  'aria-invalid': 0, // state
  'aria-keyshortcuts': 0,
  'aria-label': 0,
  'aria-roledescription': 0,
  // Widget Attributes
  'aria-autocomplete': 0,
  'aria-checked': 0,
  'aria-expanded': 0,
  'aria-haspopup': 0,
  'aria-level': 0,
  'aria-modal': 0,
  'aria-multiline': 0,
  'aria-multiselectable': 0,
  'aria-orientation': 0,
  'aria-placeholder': 0,
  'aria-pressed': 0,
  'aria-readonly': 0,
  'aria-required': 0,
  'aria-selected': 0,
  'aria-sort': 0,
  'aria-valuemax': 0,
  'aria-valuemin': 0,
  'aria-valuenow': 0,
  'aria-valuetext': 0,
  // Live Region Attributes
  'aria-atomic': 0,
  'aria-busy': 0,
  'aria-live': 0,
  'aria-relevant': 0,
  // Drag-and-Drop Attributes
  'aria-dropeffect': 0,
  'aria-grabbed': 0,
  // Relationship Attributes
  'aria-activedescendant': 0,
  'aria-colcount': 0,
  'aria-colindex': 0,
  'aria-colspan': 0,
  'aria-controls': 0,
  'aria-describedby': 0,
  'aria-errormessage': 0,
  'aria-flowto': 0,
  'aria-labelledby': 0,
  'aria-owns': 0,
  'aria-posinset': 0,
  'aria-rowcount': 0,
  'aria-rowindex': 0,
  'aria-rowspan': 0,
  'aria-setsize': 0
};

var warnedProperties = {};
var rARIA = new RegExp('^(aria)-[' + ATTRIBUTE_NAME_CHAR + ']*$');
var rARIACamel = new RegExp('^(aria)[A-Z][' + ATTRIBUTE_NAME_CHAR + ']*$');

var hasOwnProperty$2 = Object.prototype.hasOwnProperty;

function validateProperty(tagName, name) {
  if (hasOwnProperty$2.call(warnedProperties, name) && warnedProperties[name]) {
    return true;
  }

  if (rARIACamel.test(name)) {
    var ariaName = 'aria-' + name.slice(4).toLowerCase();
    var correctName = ariaProperties.hasOwnProperty(ariaName) ? ariaName : null;

    // If this is an aria-* attribute, but is not listed in the known DOM
    // DOM properties, then it is an invalid aria-* attribute.
    if (correctName == null) {
      warning$1(false, 'Invalid ARIA attribute `%s`. ARIA attributes follow the pattern aria-* and must be lowercase.', name);
      warnedProperties[name] = true;
      return true;
    }
    // aria-* attributes should be lowercase; suggest the lowercase version.
    if (name !== correctName) {
      warning$1(false, 'Invalid ARIA attribute `%s`. Did you mean `%s`?', name, correctName);
      warnedProperties[name] = true;
      return true;
    }
  }

  if (rARIA.test(name)) {
    var lowerCasedName = name.toLowerCase();
    var standardName = ariaProperties.hasOwnProperty(lowerCasedName) ? lowerCasedName : null;

    // If this is an aria-* attribute, but is not listed in the known DOM
    // DOM properties, then it is an invalid aria-* attribute.
    if (standardName == null) {
      warnedProperties[name] = true;
      return false;
    }
    // aria-* attributes should be lowercase; suggest the lowercase version.
    if (name !== standardName) {
      warning$1(false, 'Unknown ARIA attribute `%s`. Did you mean `%s`?', name, standardName);
      warnedProperties[name] = true;
      return true;
    }
  }

  return true;
}

function warnInvalidARIAProps(type, props) {
  var invalidProps = [];

  for (var key in props) {
    var isValid = validateProperty(type, key);
    if (!isValid) {
      invalidProps.push(key);
    }
  }

  var unknownPropString = invalidProps.map(function (prop) {
    return '`' + prop + '`';
  }).join(', ');

  if (invalidProps.length === 1) {
    warning$1(false, 'Invalid aria prop %s on <%s> tag. ' + 'For details, see https://fb.me/invalid-aria-prop', unknownPropString, type);
  } else if (invalidProps.length > 1) {
    warning$1(false, 'Invalid aria props %s on <%s> tag. ' + 'For details, see https://fb.me/invalid-aria-prop', unknownPropString, type);
  }
}

function validateProperties(type, props) {
  if (isCustomComponent(type, props)) {
    return;
  }
  warnInvalidARIAProps(type, props);
}

var didWarnValueNull = false;

function validateProperties$1(type, props) {
  if (type !== 'input' && type !== 'textarea' && type !== 'select') {
    return;
  }

  if (props != null && props.value === null && !didWarnValueNull) {
    didWarnValueNull = true;
    if (type === 'select' && props.multiple) {
      warning$1(false, '`value` prop on `%s` should not be null. ' + 'Consider using an empty array when `multiple` is set to `true` ' + 'to clear the component or `undefined` for uncontrolled components.', type);
    } else {
      warning$1(false, '`value` prop on `%s` should not be null. ' + 'Consider using an empty string to clear the component or `undefined` ' + 'for uncontrolled components.', type);
    }
  }
}

var validateProperty$1 = function () {};

{
  var warnedProperties$1 = {};
  var _hasOwnProperty = Object.prototype.hasOwnProperty;
  var EVENT_NAME_REGEX = /^on./;
  var INVALID_EVENT_NAME_REGEX = /^on[^A-Z]/;
  var rARIA$1 = new RegExp('^(aria)-[' + ATTRIBUTE_NAME_CHAR + ']*$');
  var rARIACamel$1 = new RegExp('^(aria)[A-Z][' + ATTRIBUTE_NAME_CHAR + ']*$');

  validateProperty$1 = function (tagName, name, value, canUseEventSystem) {
    if (_hasOwnProperty.call(warnedProperties$1, name) && warnedProperties$1[name]) {
      return true;
    }

    var lowerCasedName = name.toLowerCase();
    if (lowerCasedName === 'onfocusin' || lowerCasedName === 'onfocusout') {
      warning$1(false, 'React uses onFocus and onBlur instead of onFocusIn and onFocusOut. ' + 'All React events are normalized to bubble, so onFocusIn and onFocusOut ' + 'are not needed/supported by React.');
      warnedProperties$1[name] = true;
      return true;
    }

    // We can't rely on the event system being injected on the server.
    if (canUseEventSystem) {
      if (registrationNameModules.hasOwnProperty(name)) {
        return true;
      }
      var registrationName = possibleRegistrationNames.hasOwnProperty(lowerCasedName) ? possibleRegistrationNames[lowerCasedName] : null;
      if (registrationName != null) {
        warning$1(false, 'Invalid event handler property `%s`. Did you mean `%s`?', name, registrationName);
        warnedProperties$1[name] = true;
        return true;
      }
      if (EVENT_NAME_REGEX.test(name)) {
        warning$1(false, 'Unknown event handler property `%s`. It will be ignored.', name);
        warnedProperties$1[name] = true;
        return true;
      }
    } else if (EVENT_NAME_REGEX.test(name)) {
      // If no event plugins have been injected, we are in a server environment.
      // So we can't tell if the event name is correct for sure, but we can filter
      // out known bad ones like `onclick`. We can't suggest a specific replacement though.
      if (INVALID_EVENT_NAME_REGEX.test(name)) {
        warning$1(false, 'Invalid event handler property `%s`. ' + 'React events use the camelCase naming convention, for example `onClick`.', name);
      }
      warnedProperties$1[name] = true;
      return true;
    }

    // Let the ARIA attribute hook validate ARIA attributes
    if (rARIA$1.test(name) || rARIACamel$1.test(name)) {
      return true;
    }

    if (lowerCasedName === 'innerhtml') {
      warning$1(false, 'Directly setting property `innerHTML` is not permitted. ' + 'For more information, lookup documentation on `dangerouslySetInnerHTML`.');
      warnedProperties$1[name] = true;
      return true;
    }

    if (lowerCasedName === 'aria') {
      warning$1(false, 'The `aria` attribute is reserved for future use in React. ' + 'Pass individual `aria-` attributes instead.');
      warnedProperties$1[name] = true;
      return true;
    }

    if (lowerCasedName === 'is' && value !== null && value !== undefined && typeof value !== 'string') {
      warning$1(false, 'Received a `%s` for a string attribute `is`. If this is expected, cast ' + 'the value to a string.', typeof value);
      warnedProperties$1[name] = true;
      return true;
    }

    if (typeof value === 'number' && isNaN(value)) {
      warning$1(false, 'Received NaN for the `%s` attribute. If this is expected, cast ' + 'the value to a string.', name);
      warnedProperties$1[name] = true;
      return true;
    }

    var propertyInfo = getPropertyInfo(name);
    var isReserved = propertyInfo !== null && propertyInfo.type === RESERVED;

    // Known attributes should match the casing specified in the property config.
    if (possibleStandardNames.hasOwnProperty(lowerCasedName)) {
      var standardName = possibleStandardNames[lowerCasedName];
      if (standardName !== name) {
        warning$1(false, 'Invalid DOM property `%s`. Did you mean `%s`?', name, standardName);
        warnedProperties$1[name] = true;
        return true;
      }
    } else if (!isReserved && name !== lowerCasedName) {
      // Unknown attributes should have lowercase casing since that's how they
      // will be cased anyway with server rendering.
      warning$1(false, 'React does not recognize the `%s` prop on a DOM element. If you ' + 'intentionally want it to appear in the DOM as a custom ' + 'attribute, spell it as lowercase `%s` instead. ' + 'If you accidentally passed it from a parent component, remove ' + 'it from the DOM element.', name, lowerCasedName);
      warnedProperties$1[name] = true;
      return true;
    }

    if (typeof value === 'boolean' && shouldRemoveAttributeWithWarning(name, value, propertyInfo, false)) {
      if (value) {
        warning$1(false, 'Received `%s` for a non-boolean attribute `%s`.\n\n' + 'If you want to write it to the DOM, pass a string instead: ' + '%s="%s" or %s={value.toString()}.', value, name, name, value, name);
      } else {
        warning$1(false, 'Received `%s` for a non-boolean attribute `%s`.\n\n' + 'If you want to write it to the DOM, pass a string instead: ' + '%s="%s" or %s={value.toString()}.\n\n' + 'If you used to conditionally omit it with %s={condition && value}, ' + 'pass %s={condition ? value : undefined} instead.', value, name, name, value, name, name, name);
      }
      warnedProperties$1[name] = true;
      return true;
    }

    // Now that we've validated casing, do not validate
    // data types for reserved props
    if (isReserved) {
      return true;
    }

    // Warn when a known attribute is a bad type
    if (shouldRemoveAttributeWithWarning(name, value, propertyInfo, false)) {
      warnedProperties$1[name] = true;
      return false;
    }

    // Warn when passing the strings 'false' or 'true' into a boolean prop
    if ((value === 'false' || value === 'true') && propertyInfo !== null && propertyInfo.type === BOOLEAN) {
      warning$1(false, 'Received the string `%s` for the boolean attribute `%s`. ' + '%s ' + 'Did you mean %s={%s}?', value, name, value === 'false' ? 'The browser will interpret it as a truthy value.' : 'Although this works, it will not work as expected if you pass the string "false".', name, value);
      warnedProperties$1[name] = true;
      return true;
    }

    return true;
  };
}

var warnUnknownProperties = function (type, props, canUseEventSystem) {
  var unknownProps = [];
  for (var key in props) {
    var isValid = validateProperty$1(type, key, props[key], canUseEventSystem);
    if (!isValid) {
      unknownProps.push(key);
    }
  }

  var unknownPropString = unknownProps.map(function (prop) {
    return '`' + prop + '`';
  }).join(', ');
  if (unknownProps.length === 1) {
    warning$1(false, 'Invalid value for prop %s on <%s> tag. Either remove it from the element, ' + 'or pass a string or number value to keep it in the DOM. ' + 'For details, see https://fb.me/react-attribute-behavior', unknownPropString, type);
  } else if (unknownProps.length > 1) {
    warning$1(false, 'Invalid values for props %s on <%s> tag. Either remove them from the element, ' + 'or pass a string or number value to keep them in the DOM. ' + 'For details, see https://fb.me/react-attribute-behavior', unknownPropString, type);
  }
};

function validateProperties$2(type, props, canUseEventSystem) {
  if (isCustomComponent(type, props)) {
    return;
  }
  warnUnknownProperties(type, props, canUseEventSystem);
}

// TODO: direct imports like some-package/src/* are bad. Fix me.
var didWarnInvalidHydration = false;
var didWarnShadyDOM = false;

var DANGEROUSLY_SET_INNER_HTML = 'dangerouslySetInnerHTML';
var SUPPRESS_CONTENT_EDITABLE_WARNING = 'suppressContentEditableWarning';
var SUPPRESS_HYDRATION_WARNING$1 = 'suppressHydrationWarning';
var AUTOFOCUS = 'autoFocus';
var CHILDREN = 'children';
var STYLE$1 = 'style';
var HTML = '__html';
var LISTENERS = 'listeners';

var HTML_NAMESPACE = Namespaces.html;


var warnedUnknownTags = void 0;
var suppressHydrationWarning = void 0;

var validatePropertiesInDevelopment = void 0;
var warnForTextDifference = void 0;
var warnForPropDifference = void 0;
var warnForExtraAttributes = void 0;
var warnForInvalidEventListener = void 0;
var canDiffStyleForHydrationWarning = void 0;

var normalizeMarkupForTextOrAttribute = void 0;
var normalizeHTML = void 0;

{
  warnedUnknownTags = {
    // Chrome is the only major browser not shipping <time>. But as of July
    // 2017 it intends to ship it due to widespread usage. We intentionally
    // *don't* warn for <time> even if it's unrecognized by Chrome because
    // it soon will be, and many apps have been using it anyway.
    time: true,
    // There are working polyfills for <dialog>. Let people use it.
    dialog: true,
    // Electron ships a custom <webview> tag to display external web content in
    // an isolated frame and process.
    // This tag is not present in non Electron environments such as JSDom which
    // is often used for testing purposes.
    // @see https://electronjs.org/docs/api/webview-tag
    webview: true
  };

  validatePropertiesInDevelopment = function (type, props) {
    validateProperties(type, props);
    validateProperties$1(type, props);
    validateProperties$2(type, props, /* canUseEventSystem */true);
  };

  // IE 11 parses & normalizes the style attribute as opposed to other
  // browsers. It adds spaces and sorts the properties in some
  // non-alphabetical order. Handling that would require sorting CSS
  // properties in the client & server versions or applying
  // `expectedStyle` to a temporary DOM node to read its `style` attribute
  // normalized. Since it only affects IE, we're skipping style warnings
  // in that browser completely in favor of doing all that work.
  // See https://github.com/facebook/react/issues/11807
  canDiffStyleForHydrationWarning = canUseDOM && !document.documentMode;

  // HTML parsing normalizes CR and CRLF to LF.
  // It also can turn \u0000 into \uFFFD inside attributes.
  // https://www.w3.org/TR/html5/single-page.html#preprocessing-the-input-stream
  // If we have a mismatch, it might be caused by that.
  // We will still patch up in this case but not fire the warning.
  var NORMALIZE_NEWLINES_REGEX = /\r\n?/g;
  var NORMALIZE_NULL_AND_REPLACEMENT_REGEX = /\u0000|\uFFFD/g;

  normalizeMarkupForTextOrAttribute = function (markup) {
    var markupString = typeof markup === 'string' ? markup : '' + markup;
    return markupString.replace(NORMALIZE_NEWLINES_REGEX, '\n').replace(NORMALIZE_NULL_AND_REPLACEMENT_REGEX, '');
  };

  warnForTextDifference = function (serverText, clientText) {
    if (didWarnInvalidHydration) {
      return;
    }
    var normalizedClientText = normalizeMarkupForTextOrAttribute(clientText);
    var normalizedServerText = normalizeMarkupForTextOrAttribute(serverText);
    if (normalizedServerText === normalizedClientText) {
      return;
    }
    didWarnInvalidHydration = true;
    warningWithoutStack$1(false, 'Text content did not match. Server: "%s" Client: "%s"', normalizedServerText, normalizedClientText);
  };

  warnForPropDifference = function (propName, serverValue, clientValue) {
    if (didWarnInvalidHydration) {
      return;
    }
    var normalizedClientValue = normalizeMarkupForTextOrAttribute(clientValue);
    var normalizedServerValue = normalizeMarkupForTextOrAttribute(serverValue);
    if (normalizedServerValue === normalizedClientValue) {
      return;
    }
    didWarnInvalidHydration = true;
    warningWithoutStack$1(false, 'Prop `%s` did not match. Server: %s Client: %s', propName, JSON.stringify(normalizedServerValue), JSON.stringify(normalizedClientValue));
  };

  warnForExtraAttributes = function (attributeNames) {
    if (didWarnInvalidHydration) {
      return;
    }
    didWarnInvalidHydration = true;
    var names = [];
    attributeNames.forEach(function (name) {
      names.push(name);
    });
    warningWithoutStack$1(false, 'Extra attributes from the server: %s', names);
  };

  warnForInvalidEventListener = function (registrationName, listener) {
    if (listener === false) {
      warning$1(false, 'Expected `%s` listener to be a function, instead got `false`.\n\n' + 'If you used to conditionally omit it with %s={condition && value}, ' + 'pass %s={condition ? value : undefined} instead.', registrationName, registrationName, registrationName);
    } else {
      warning$1(false, 'Expected `%s` listener to be a function, instead got a value of `%s` type.', registrationName, typeof listener);
    }
  };

  // Parse the HTML and read it back to normalize the HTML string so that it
  // can be used for comparison.
  normalizeHTML = function (parent, html) {
    // We could have created a separate document here to avoid
    // re-initializing custom elements if they exist. But this breaks
    // how <noscript> is being handled. So we use the same document.
    // See the discussion in https://github.com/facebook/react/pull/11157.
    var testElement = parent.namespaceURI === HTML_NAMESPACE ? parent.ownerDocument.createElement(parent.tagName) : parent.ownerDocument.createElementNS(parent.namespaceURI, parent.tagName);
    testElement.innerHTML = html;
    return testElement.innerHTML;
  };
}

function ensureListeningTo(rootContainerElement, registrationName) {
  var isDocumentOrFragment = rootContainerElement.nodeType === DOCUMENT_NODE || rootContainerElement.nodeType === DOCUMENT_FRAGMENT_NODE;
  var doc = isDocumentOrFragment ? rootContainerElement : rootContainerElement.ownerDocument;
  listenTo(registrationName, doc);
}

function getOwnerDocumentFromRootContainer(rootContainerElement) {
  return rootContainerElement.nodeType === DOCUMENT_NODE ? rootContainerElement : rootContainerElement.ownerDocument;
}

function noop() {}

function trapClickOnNonInteractiveElement(node) {
  // Mobile Safari does not fire properly bubble click events on
  // non-interactive elements, which means delegated click listeners do not
  // fire. The workaround for this bug involves attaching an empty click
  // listener on the target node.
  // http://www.quirksmode.org/blog/archives/2010/09/click_event_del.html
  // Just set it using the onclick property so that we don't have to manage any
  // bookkeeping for it. Not sure if we need to clear it when the listener is
  // removed.
  // TODO: Only do this for the relevant Safaris maybe?
  node.onclick = noop;
}

function setInitialDOMProperties(tag, domElement, rootContainerElement, nextProps, isCustomComponentTag) {
  for (var propKey in nextProps) {
    if (!nextProps.hasOwnProperty(propKey)) {
      continue;
    }
    var nextProp = nextProps[propKey];
    if (propKey === STYLE$1) {
      {
        if (nextProp) {
          // Freeze the next style object so that we can assume it won't be
          // mutated. We have already warned for this in the past.
          Object.freeze(nextProp);
        }
      }
      // Relies on `updateStylesByID` not mutating `styleUpdates`.
      setValueForStyles(domElement, nextProp);
    } else if (propKey === DANGEROUSLY_SET_INNER_HTML) {
      var nextHtml = nextProp ? nextProp[HTML] : undefined;
      if (nextHtml != null) {
        setInnerHTML(domElement, nextHtml);
      }
    } else if (propKey === CHILDREN) {
      if (typeof nextProp === 'string') {
        // Avoid setting initial textContent when the text is empty. In IE11 setting
        // textContent on a <textarea> will cause the placeholder to not
        // show within the <textarea> until it has been focused and blurred again.
        // https://github.com/facebook/react/issues/6731#issuecomment-254874553
        var canSetTextContent = tag !== 'textarea' || nextProp !== '';
        if (canSetTextContent) {
          setTextContent(domElement, nextProp);
        }
      } else if (typeof nextProp === 'number') {
        setTextContent(domElement, '' + nextProp);
      }
    } else if (enableFlareAPI && propKey === LISTENERS || propKey === SUPPRESS_CONTENT_EDITABLE_WARNING || propKey === SUPPRESS_HYDRATION_WARNING$1) {
      // Noop
    } else if (propKey === AUTOFOCUS) {
      // We polyfill it separately on the client during commit.
      // We could have excluded it in the property list instead of
      // adding a special case here, but then it wouldn't be emitted
      // on server rendering (but we *do* want to emit it in SSR).
    } else if (registrationNameModules.hasOwnProperty(propKey)) {
      if (nextProp != null) {
        if (true && typeof nextProp !== 'function') {
          warnForInvalidEventListener(propKey, nextProp);
        }
        ensureListeningTo(rootContainerElement, propKey);
      }
    } else if (nextProp != null) {
      setValueForProperty(domElement, propKey, nextProp, isCustomComponentTag);
    }
  }
}

function updateDOMProperties(domElement, updatePayload, wasCustomComponentTag, isCustomComponentTag) {
  // TODO: Handle wasCustomComponentTag
  for (var i = 0; i < updatePayload.length; i += 2) {
    var propKey = updatePayload[i];
    var propValue = updatePayload[i + 1];
    if (propKey === STYLE$1) {
      setValueForStyles(domElement, propValue);
    } else if (propKey === DANGEROUSLY_SET_INNER_HTML) {
      setInnerHTML(domElement, propValue);
    } else if (propKey === CHILDREN) {
      setTextContent(domElement, propValue);
    } else {
      setValueForProperty(domElement, propKey, propValue, isCustomComponentTag);
    }
  }
}

function createElement(type, props, rootContainerElement, parentNamespace) {
  var isCustomComponentTag = void 0;

  // We create tags in the namespace of their parent container, except HTML
  // tags get no namespace.
  var ownerDocument = getOwnerDocumentFromRootContainer(rootContainerElement);
  var domElement = void 0;
  var namespaceURI = parentNamespace;
  if (namespaceURI === HTML_NAMESPACE) {
    namespaceURI = getIntrinsicNamespace(type);
  }
  if (namespaceURI === HTML_NAMESPACE) {
    {
      isCustomComponentTag = isCustomComponent(type, props);
      // Should this check be gated by parent namespace? Not sure we want to
      // allow <SVG> or <mATH>.
      !(isCustomComponentTag || type === type.toLowerCase()) ? warning$1(false, '<%s /> is using incorrect casing. ' + 'Use PascalCase for React components, ' + 'or lowercase for HTML elements.', type) : void 0;
    }

    if (type === 'script') {
      // Create the script via .innerHTML so its "parser-inserted" flag is
      // set to true and it does not execute
      var div = ownerDocument.createElement('div');
      div.innerHTML = '<script><' + '/script>'; // eslint-disable-line
      // This is guaranteed to yield a script element.
      var firstChild = div.firstChild;
      domElement = div.removeChild(firstChild);
    } else if (typeof props.is === 'string') {
      // $FlowIssue `createElement` should be updated for Web Components
      domElement = ownerDocument.createElement(type, { is: props.is });
    } else {
      // Separate else branch instead of using `props.is || undefined` above because of a Firefox bug.
      // See discussion in https://github.com/facebook/react/pull/6896
      // and discussion in https://bugzilla.mozilla.org/show_bug.cgi?id=1276240
      domElement = ownerDocument.createElement(type);
      // Normally attributes are assigned in `setInitialDOMProperties`, however the `multiple` and `size`
      // attributes on `select`s needs to be added before `option`s are inserted.
      // This prevents:
      // - a bug where the `select` does not scroll to the correct option because singular
      //  `select` elements automatically pick the first item #13222
      // - a bug where the `select` set the first item as selected despite the `size` attribute #14239
      // See https://github.com/facebook/react/issues/13222
      // and https://github.com/facebook/react/issues/14239
      if (type === 'select') {
        var node = domElement;
        if (props.multiple) {
          node.multiple = true;
        } else if (props.size) {
          // Setting a size greater than 1 causes a select to behave like `multiple=true`, where
          // it is possible that no option is selected.
          //
          // This is only necessary when a select in "single selection mode".
          node.size = props.size;
        }
      }
    }
  } else {
    domElement = ownerDocument.createElementNS(namespaceURI, type);
  }

  {
    if (namespaceURI === HTML_NAMESPACE) {
      if (!isCustomComponentTag && Object.prototype.toString.call(domElement) === '[object HTMLUnknownElement]' && !Object.prototype.hasOwnProperty.call(warnedUnknownTags, type)) {
        warnedUnknownTags[type] = true;
        warning$1(false, 'The tag <%s> is unrecognized in this browser. ' + 'If you meant to render a React component, start its name with ' + 'an uppercase letter.', type);
      }
    }
  }

  return domElement;
}

function createTextNode(text, rootContainerElement) {
  return getOwnerDocumentFromRootContainer(rootContainerElement).createTextNode(text);
}

function setInitialProperties(domElement, tag, rawProps, rootContainerElement) {
  var isCustomComponentTag = isCustomComponent(tag, rawProps);
  {
    validatePropertiesInDevelopment(tag, rawProps);
    if (isCustomComponentTag && !didWarnShadyDOM && domElement.shadyRoot) {
      warning$1(false, '%s is using shady DOM. Using shady DOM with React can ' + 'cause things to break subtly.', getCurrentFiberOwnerNameInDevOrNull() || 'A component');
      didWarnShadyDOM = true;
    }
  }

  // TODO: Make sure that we check isMounted before firing any of these events.
  var props = void 0;
  switch (tag) {
    case 'iframe':
    case 'object':
    case 'embed':
      trapBubbledEvent(TOP_LOAD, domElement);
      props = rawProps;
      break;
    case 'video':
    case 'audio':
      // Create listener for each media event
      for (var i = 0; i < mediaEventTypes.length; i++) {
        trapBubbledEvent(mediaEventTypes[i], domElement);
      }
      props = rawProps;
      break;
    case 'source':
      trapBubbledEvent(TOP_ERROR, domElement);
      props = rawProps;
      break;
    case 'img':
    case 'image':
    case 'link':
      trapBubbledEvent(TOP_ERROR, domElement);
      trapBubbledEvent(TOP_LOAD, domElement);
      props = rawProps;
      break;
    case 'form':
      trapBubbledEvent(TOP_RESET, domElement);
      trapBubbledEvent(TOP_SUBMIT, domElement);
      props = rawProps;
      break;
    case 'details':
      trapBubbledEvent(TOP_TOGGLE, domElement);
      props = rawProps;
      break;
    case 'input':
      initWrapperState(domElement, rawProps);
      props = getHostProps(domElement, rawProps);
      trapBubbledEvent(TOP_INVALID, domElement);
      // For controlled components we always need to ensure we're listening
      // to onChange. Even if there is no listener.
      ensureListeningTo(rootContainerElement, 'onChange');
      break;
    case 'option':
      validateProps(domElement, rawProps);
      props = getHostProps$1(domElement, rawProps);
      break;
    case 'select':
      initWrapperState$1(domElement, rawProps);
      props = getHostProps$2(domElement, rawProps);
      trapBubbledEvent(TOP_INVALID, domElement);
      // For controlled components we always need to ensure we're listening
      // to onChange. Even if there is no listener.
      ensureListeningTo(rootContainerElement, 'onChange');
      break;
    case 'textarea':
      initWrapperState$2(domElement, rawProps);
      props = getHostProps$3(domElement, rawProps);
      trapBubbledEvent(TOP_INVALID, domElement);
      // For controlled components we always need to ensure we're listening
      // to onChange. Even if there is no listener.
      ensureListeningTo(rootContainerElement, 'onChange');
      break;
    default:
      props = rawProps;
  }

  assertValidProps(tag, props);

  setInitialDOMProperties(tag, domElement, rootContainerElement, props, isCustomComponentTag);

  switch (tag) {
    case 'input':
      // TODO: Make sure we check if this is still unmounted or do any clean
      // up necessary since we never stop tracking anymore.
      track(domElement);
      postMountWrapper(domElement, rawProps, false);
      break;
    case 'textarea':
      // TODO: Make sure we check if this is still unmounted or do any clean
      // up necessary since we never stop tracking anymore.
      track(domElement);
      postMountWrapper$3(domElement, rawProps);
      break;
    case 'option':
      postMountWrapper$1(domElement, rawProps);
      break;
    case 'select':
      postMountWrapper$2(domElement, rawProps);
      break;
    default:
      if (typeof props.onClick === 'function') {
        // TODO: This cast may not be sound for SVG, MathML or custom elements.
        trapClickOnNonInteractiveElement(domElement);
      }
      break;
  }
}

// Calculate the diff between the two objects.
function diffProperties(domElement, tag, lastRawProps, nextRawProps, rootContainerElement) {
  {
    validatePropertiesInDevelopment(tag, nextRawProps);
  }

  var updatePayload = null;

  var lastProps = void 0;
  var nextProps = void 0;
  switch (tag) {
    case 'input':
      lastProps = getHostProps(domElement, lastRawProps);
      nextProps = getHostProps(domElement, nextRawProps);
      updatePayload = [];
      break;
    case 'option':
      lastProps = getHostProps$1(domElement, lastRawProps);
      nextProps = getHostProps$1(domElement, nextRawProps);
      updatePayload = [];
      break;
    case 'select':
      lastProps = getHostProps$2(domElement, lastRawProps);
      nextProps = getHostProps$2(domElement, nextRawProps);
      updatePayload = [];
      break;
    case 'textarea':
      lastProps = getHostProps$3(domElement, lastRawProps);
      nextProps = getHostProps$3(domElement, nextRawProps);
      updatePayload = [];
      break;
    default:
      lastProps = lastRawProps;
      nextProps = nextRawProps;
      if (typeof lastProps.onClick !== 'function' && typeof nextProps.onClick === 'function') {
        // TODO: This cast may not be sound for SVG, MathML or custom elements.
        trapClickOnNonInteractiveElement(domElement);
      }
      break;
  }

  assertValidProps(tag, nextProps);

  var propKey = void 0;
  var styleName = void 0;
  var styleUpdates = null;
  for (propKey in lastProps) {
    if (nextProps.hasOwnProperty(propKey) || !lastProps.hasOwnProperty(propKey) || lastProps[propKey] == null) {
      continue;
    }
    if (propKey === STYLE$1) {
      var lastStyle = lastProps[propKey];
      for (styleName in lastStyle) {
        if (lastStyle.hasOwnProperty(styleName)) {
          if (!styleUpdates) {
            styleUpdates = {};
          }
          styleUpdates[styleName] = '';
        }
      }
    } else if (propKey === DANGEROUSLY_SET_INNER_HTML || propKey === CHILDREN) {
      // Noop. This is handled by the clear text mechanism.
    } else if (enableFlareAPI && propKey === LISTENERS || propKey === SUPPRESS_CONTENT_EDITABLE_WARNING || propKey === SUPPRESS_HYDRATION_WARNING$1) {
      // Noop
    } else if (propKey === AUTOFOCUS) {
      // Noop. It doesn't work on updates anyway.
    } else if (registrationNameModules.hasOwnProperty(propKey)) {
      // This is a special case. If any listener updates we need to ensure
      // that the "current" fiber pointer gets updated so we need a commit
      // to update this element.
      if (!updatePayload) {
        updatePayload = [];
      }
    } else {
      // For all other deleted properties we add it to the queue. We use
      // the whitelist in the commit phase instead.
      (updatePayload = updatePayload || []).push(propKey, null);
    }
  }
  for (propKey in nextProps) {
    var nextProp = nextProps[propKey];
    var lastProp = lastProps != null ? lastProps[propKey] : undefined;
    if (!nextProps.hasOwnProperty(propKey) || nextProp === lastProp || nextProp == null && lastProp == null) {
      continue;
    }
    if (propKey === STYLE$1) {
      {
        if (nextProp) {
          // Freeze the next style object so that we can assume it won't be
          // mutated. We have already warned for this in the past.
          Object.freeze(nextProp);
        }
      }
      if (lastProp) {
        // Unset styles on `lastProp` but not on `nextProp`.
        for (styleName in lastProp) {
          if (lastProp.hasOwnProperty(styleName) && (!nextProp || !nextProp.hasOwnProperty(styleName))) {
            if (!styleUpdates) {
              styleUpdates = {};
            }
            styleUpdates[styleName] = '';
          }
        }
        // Update styles that changed since `lastProp`.
        for (styleName in nextProp) {
          if (nextProp.hasOwnProperty(styleName) && lastProp[styleName] !== nextProp[styleName]) {
            if (!styleUpdates) {
              styleUpdates = {};
            }
            styleUpdates[styleName] = nextProp[styleName];
          }
        }
      } else {
        // Relies on `updateStylesByID` not mutating `styleUpdates`.
        if (!styleUpdates) {
          if (!updatePayload) {
            updatePayload = [];
          }
          updatePayload.push(propKey, styleUpdates);
        }
        styleUpdates = nextProp;
      }
    } else if (propKey === DANGEROUSLY_SET_INNER_HTML) {
      var nextHtml = nextProp ? nextProp[HTML] : undefined;
      var lastHtml = lastProp ? lastProp[HTML] : undefined;
      if (nextHtml != null) {
        if (lastHtml !== nextHtml) {
          (updatePayload = updatePayload || []).push(propKey, '' + nextHtml);
        }
      } else {
        // TODO: It might be too late to clear this if we have children
        // inserted already.
      }
    } else if (propKey === CHILDREN) {
      if (lastProp !== nextProp && (typeof nextProp === 'string' || typeof nextProp === 'number')) {
        (updatePayload = updatePayload || []).push(propKey, '' + nextProp);
      }
    } else if (enableFlareAPI && propKey === LISTENERS || propKey === SUPPRESS_CONTENT_EDITABLE_WARNING || propKey === SUPPRESS_HYDRATION_WARNING$1) {
      // Noop
    } else if (registrationNameModules.hasOwnProperty(propKey)) {
      if (nextProp != null) {
        // We eagerly listen to this even though we haven't committed yet.
        if (true && typeof nextProp !== 'function') {
          warnForInvalidEventListener(propKey, nextProp);
        }
        ensureListeningTo(rootContainerElement, propKey);
      }
      if (!updatePayload && lastProp !== nextProp) {
        // This is a special case. If any listener updates we need to ensure
        // that the "current" props pointer gets updated so we need a commit
        // to update this element.
        updatePayload = [];
      }
    } else {
      // For any other property we always add it to the queue and then we
      // filter it out using the whitelist during the commit.
      (updatePayload = updatePayload || []).push(propKey, nextProp);
    }
  }
  if (styleUpdates) {
    {
      validateShorthandPropertyCollisionInDev(styleUpdates, nextProps[STYLE$1]);
    }
    (updatePayload = updatePayload || []).push(STYLE$1, styleUpdates);
  }
  return updatePayload;
}

// Apply the diff.
function updateProperties(domElement, updatePayload, tag, lastRawProps, nextRawProps) {
  // Update checked *before* name.
  // In the middle of an update, it is possible to have multiple checked.
  // When a checked radio tries to change name, browser makes another radio's checked false.
  if (tag === 'input' && nextRawProps.type === 'radio' && nextRawProps.name != null) {
    updateChecked(domElement, nextRawProps);
  }

  var wasCustomComponentTag = isCustomComponent(tag, lastRawProps);
  var isCustomComponentTag = isCustomComponent(tag, nextRawProps);
  // Apply the diff.
  updateDOMProperties(domElement, updatePayload, wasCustomComponentTag, isCustomComponentTag);

  // TODO: Ensure that an update gets scheduled if any of the special props
  // changed.
  switch (tag) {
    case 'input':
      // Update the wrapper around inputs *after* updating props. This has to
      // happen after `updateDOMProperties`. Otherwise HTML5 input validations
      // raise warnings and prevent the new value from being assigned.
      updateWrapper(domElement, nextRawProps);
      break;
    case 'textarea':
      updateWrapper$1(domElement, nextRawProps);
      break;
    case 'select':
      // <select> value update needs to occur after <option> children
      // reconciliation
      postUpdateWrapper(domElement, nextRawProps);
      break;
  }
}

function getPossibleStandardName(propName) {
  {
    var lowerCasedName = propName.toLowerCase();
    if (!possibleStandardNames.hasOwnProperty(lowerCasedName)) {
      return null;
    }
    return possibleStandardNames[lowerCasedName] || null;
  }
  return null;
}

function diffHydratedProperties(domElement, tag, rawProps, parentNamespace, rootContainerElement) {
  var isCustomComponentTag = void 0;
  var extraAttributeNames = void 0;

  {
    suppressHydrationWarning = rawProps[SUPPRESS_HYDRATION_WARNING$1] === true;
    isCustomComponentTag = isCustomComponent(tag, rawProps);
    validatePropertiesInDevelopment(tag, rawProps);
    if (isCustomComponentTag && !didWarnShadyDOM && domElement.shadyRoot) {
      warning$1(false, '%s is using shady DOM. Using shady DOM with React can ' + 'cause things to break subtly.', getCurrentFiberOwnerNameInDevOrNull() || 'A component');
      didWarnShadyDOM = true;
    }
  }

  // TODO: Make sure that we check isMounted before firing any of these events.
  switch (tag) {
    case 'iframe':
    case 'object':
    case 'embed':
      trapBubbledEvent(TOP_LOAD, domElement);
      break;
    case 'video':
    case 'audio':
      // Create listener for each media event
      for (var i = 0; i < mediaEventTypes.length; i++) {
        trapBubbledEvent(mediaEventTypes[i], domElement);
      }
      break;
    case 'source':
      trapBubbledEvent(TOP_ERROR, domElement);
      break;
    case 'img':
    case 'image':
    case 'link':
      trapBubbledEvent(TOP_ERROR, domElement);
      trapBubbledEvent(TOP_LOAD, domElement);
      break;
    case 'form':
      trapBubbledEvent(TOP_RESET, domElement);
      trapBubbledEvent(TOP_SUBMIT, domElement);
      break;
    case 'details':
      trapBubbledEvent(TOP_TOGGLE, domElement);
      break;
    case 'input':
      initWrapperState(domElement, rawProps);
      trapBubbledEvent(TOP_INVALID, domElement);
      // For controlled components we always need to ensure we're listening
      // to onChange. Even if there is no listener.
      ensureListeningTo(rootContainerElement, 'onChange');
      break;
    case 'option':
      validateProps(domElement, rawProps);
      break;
    case 'select':
      initWrapperState$1(domElement, rawProps);
      trapBubbledEvent(TOP_INVALID, domElement);
      // For controlled components we always need to ensure we're listening
      // to onChange. Even if there is no listener.
      ensureListeningTo(rootContainerElement, 'onChange');
      break;
    case 'textarea':
      initWrapperState$2(domElement, rawProps);
      trapBubbledEvent(TOP_INVALID, domElement);
      // For controlled components we always need to ensure we're listening
      // to onChange. Even if there is no listener.
      ensureListeningTo(rootContainerElement, 'onChange');
      break;
  }

  assertValidProps(tag, rawProps);

  {
    extraAttributeNames = new Set();
    var attributes = domElement.attributes;
    for (var _i = 0; _i < attributes.length; _i++) {
      var name = attributes[_i].name.toLowerCase();
      switch (name) {
        // Built-in SSR attribute is whitelisted
        case 'data-reactroot':
          break;
        // Controlled attributes are not validated
        // TODO: Only ignore them on controlled tags.
        case 'value':
          break;
        case 'checked':
          break;
        case 'selected':
          break;
        default:
          // Intentionally use the original name.
          // See discussion in https://github.com/facebook/react/pull/10676.
          extraAttributeNames.add(attributes[_i].name);
      }
    }
  }

  var updatePayload = null;
  for (var propKey in rawProps) {
    if (!rawProps.hasOwnProperty(propKey)) {
      continue;
    }
    var nextProp = rawProps[propKey];
    if (propKey === CHILDREN) {
      // For text content children we compare against textContent. This
      // might match additional HTML that is hidden when we read it using
      // textContent. E.g. "foo" will match "f<span>oo</span>" but that still
      // satisfies our requirement. Our requirement is not to produce perfect
      // HTML and attributes. Ideally we should preserve structure but it's
      // ok not to if the visible content is still enough to indicate what
      // even listeners these nodes might be wired up to.
      // TODO: Warn if there is more than a single textNode as a child.
      // TODO: Should we use domElement.firstChild.nodeValue to compare?
      if (typeof nextProp === 'string') {
        if (domElement.textContent !== nextProp) {
          if (true && !suppressHydrationWarning) {
            warnForTextDifference(domElement.textContent, nextProp);
          }
          updatePayload = [CHILDREN, nextProp];
        }
      } else if (typeof nextProp === 'number') {
        if (domElement.textContent !== '' + nextProp) {
          if (true && !suppressHydrationWarning) {
            warnForTextDifference(domElement.textContent, nextProp);
          }
          updatePayload = [CHILDREN, '' + nextProp];
        }
      }
    } else if (registrationNameModules.hasOwnProperty(propKey)) {
      if (nextProp != null) {
        if (true && typeof nextProp !== 'function') {
          warnForInvalidEventListener(propKey, nextProp);
        }
        ensureListeningTo(rootContainerElement, propKey);
      }
    } else if (true &&
    // Convince Flow we've calculated it (it's DEV-only in this method.)
    typeof isCustomComponentTag === 'boolean') {
      // Validate that the properties correspond to their expected values.
      var serverValue = void 0;
      var propertyInfo = getPropertyInfo(propKey);
      if (suppressHydrationWarning) {
        // Don't bother comparing. We're ignoring all these warnings.
      } else if (enableFlareAPI && propKey === LISTENERS || propKey === SUPPRESS_CONTENT_EDITABLE_WARNING || propKey === SUPPRESS_HYDRATION_WARNING$1 ||
      // Controlled attributes are not validated
      // TODO: Only ignore them on controlled tags.
      propKey === 'value' || propKey === 'checked' || propKey === 'selected') {
        // Noop
      } else if (propKey === DANGEROUSLY_SET_INNER_HTML) {
        var serverHTML = domElement.innerHTML;
        var nextHtml = nextProp ? nextProp[HTML] : undefined;
        var expectedHTML = normalizeHTML(domElement, nextHtml != null ? nextHtml : '');
        if (expectedHTML !== serverHTML) {
          warnForPropDifference(propKey, serverHTML, expectedHTML);
        }
      } else if (propKey === STYLE$1) {
        // $FlowFixMe - Should be inferred as not undefined.
        extraAttributeNames.delete(propKey);

        if (canDiffStyleForHydrationWarning) {
          var expectedStyle = createDangerousStringForStyles(nextProp);
          serverValue = domElement.getAttribute('style');
          if (expectedStyle !== serverValue) {
            warnForPropDifference(propKey, serverValue, expectedStyle);
          }
        }
      } else if (isCustomComponentTag) {
        // $FlowFixMe - Should be inferred as not undefined.
        extraAttributeNames.delete(propKey.toLowerCase());
        serverValue = getValueForAttribute(domElement, propKey, nextProp);

        if (nextProp !== serverValue) {
          warnForPropDifference(propKey, serverValue, nextProp);
        }
      } else if (!shouldIgnoreAttribute(propKey, propertyInfo, isCustomComponentTag) && !shouldRemoveAttribute(propKey, nextProp, propertyInfo, isCustomComponentTag)) {
        var isMismatchDueToBadCasing = false;
        if (propertyInfo !== null) {
          // $FlowFixMe - Should be inferred as not undefined.
          extraAttributeNames.delete(propertyInfo.attributeName);
          serverValue = getValueForProperty(domElement, propKey, nextProp, propertyInfo);
        } else {
          var ownNamespace = parentNamespace;
          if (ownNamespace === HTML_NAMESPACE) {
            ownNamespace = getIntrinsicNamespace(tag);
          }
          if (ownNamespace === HTML_NAMESPACE) {
            // $FlowFixMe - Should be inferred as not undefined.
            extraAttributeNames.delete(propKey.toLowerCase());
          } else {
            var standardName = getPossibleStandardName(propKey);
            if (standardName !== null && standardName !== propKey) {
              // If an SVG prop is supplied with bad casing, it will
              // be successfully parsed from HTML, but will produce a mismatch
              // (and would be incorrectly rendered on the client).
              // However, we already warn about bad casing elsewhere.
              // So we'll skip the misleading extra mismatch warning in this case.
              isMismatchDueToBadCasing = true;
              // $FlowFixMe - Should be inferred as not undefined.
              extraAttributeNames.delete(standardName);
            }
            // $FlowFixMe - Should be inferred as not undefined.
            extraAttributeNames.delete(propKey);
          }
          serverValue = getValueForAttribute(domElement, propKey, nextProp);
        }

        if (nextProp !== serverValue && !isMismatchDueToBadCasing) {
          warnForPropDifference(propKey, serverValue, nextProp);
        }
      }
    }
  }

  {
    // $FlowFixMe - Should be inferred as not undefined.
    if (extraAttributeNames.size > 0 && !suppressHydrationWarning) {
      // $FlowFixMe - Should be inferred as not undefined.
      warnForExtraAttributes(extraAttributeNames);
    }
  }

  switch (tag) {
    case 'input':
      // TODO: Make sure we check if this is still unmounted or do any clean
      // up necessary since we never stop tracking anymore.
      track(domElement);
      postMountWrapper(domElement, rawProps, true);
      break;
    case 'textarea':
      // TODO: Make sure we check if this is still unmounted or do any clean
      // up necessary since we never stop tracking anymore.
      track(domElement);
      postMountWrapper$3(domElement, rawProps);
      break;
    case 'select':
    case 'option':
      // For input and textarea we current always set the value property at
      // post mount to force it to diverge from attributes. However, for
      // option and select we don't quite do the same thing and select
      // is not resilient to the DOM state changing so we don't do that here.
      // TODO: Consider not doing this for input and textarea.
      break;
    default:
      if (typeof rawProps.onClick === 'function') {
        // TODO: This cast may not be sound for SVG, MathML or custom elements.
        trapClickOnNonInteractiveElement(domElement);
      }
      break;
  }

  return updatePayload;
}

function diffHydratedText(textNode, text) {
  var isDifferent = textNode.nodeValue !== text;
  return isDifferent;
}

function warnForUnmatchedText(textNode, text) {
  {
    warnForTextDifference(textNode.nodeValue, text);
  }
}

function warnForDeletedHydratableElement(parentNode, child) {
  {
    if (didWarnInvalidHydration) {
      return;
    }
    didWarnInvalidHydration = true;
    warningWithoutStack$1(false, 'Did not expect server HTML to contain a <%s> in <%s>.', child.nodeName.toLowerCase(), parentNode.nodeName.toLowerCase());
  }
}

function warnForDeletedHydratableText(parentNode, child) {
  {
    if (didWarnInvalidHydration) {
      return;
    }
    didWarnInvalidHydration = true;
    warningWithoutStack$1(false, 'Did not expect server HTML to contain the text node "%s" in <%s>.', child.nodeValue, parentNode.nodeName.toLowerCase());
  }
}

function warnForInsertedHydratedElement(parentNode, tag, props) {
  {
    if (didWarnInvalidHydration) {
      return;
    }
    didWarnInvalidHydration = true;
    warningWithoutStack$1(false, 'Expected server HTML to contain a matching <%s> in <%s>.', tag, parentNode.nodeName.toLowerCase());
  }
}

function warnForInsertedHydratedText(parentNode, text) {
  {
    if (text === '') {
      // We expect to insert empty text nodes since they're not represented in
      // the HTML.
      // TODO: Remove this special case if we can just avoid inserting empty
      // text nodes.
      return;
    }
    if (didWarnInvalidHydration) {
      return;
    }
    didWarnInvalidHydration = true;
    warningWithoutStack$1(false, 'Expected server HTML to contain a matching text node for "%s" in <%s>.', text, parentNode.nodeName.toLowerCase());
  }
}

function restoreControlledState$1(domElement, tag, props) {
  switch (tag) {
    case 'input':
      restoreControlledState(domElement, props);
      return;
    case 'textarea':
      restoreControlledState$3(domElement, props);
      return;
    case 'select':
      restoreControlledState$2(domElement, props);
      return;
  }
}

function listenToEventResponderEventTypes(eventTypes, element) {
  if (enableFlareAPI) {
    // Get the listening Set for this element. We use this to track
    // what events we're listening to.
    var listeningSet = getListeningSetForElement(element);

    // Go through each target event type of the event responder
    for (var i = 0, length = eventTypes.length; i < length; ++i) {
      var eventType = eventTypes[i];
      var isPassive = !endsWith(eventType, '_active');
      var eventKey = isPassive ? eventType + '_passive' : eventType;
      var targetEventType = isPassive ? eventType : eventType.substring(0, eventType.length - 7);
      if (!listeningSet.has(eventKey)) {
        trapEventForResponderEventSystem(element, targetEventType, isPassive);
        listeningSet.add(eventKey);
      }
    }
  }
}

// We can remove this once the event API is stable and out of a flag
if (enableFlareAPI) {
  setListenToResponderEventTypes(listenToEventResponderEventTypes);
}

// TODO: direct imports like some-package/src/* are bad. Fix me.
var validateDOMNesting = function () {};
var updatedAncestorInfo = function () {};

{
  // This validation code was written based on the HTML5 parsing spec:
  // https://html.spec.whatwg.org/multipage/syntax.html#has-an-element-in-scope
  //
  // Note: this does not catch all invalid nesting, nor does it try to (as it's
  // not clear what practical benefit doing so provides); instead, we warn only
  // for cases where the parser will give a parse tree differing from what React
  // intended. For example, <b><div></div></b> is invalid but we don't warn
  // because it still parses correctly; we do warn for other cases like nested
  // <p> tags where the beginning of the second element implicitly closes the
  // first, causing a confusing mess.

  // https://html.spec.whatwg.org/multipage/syntax.html#special
  var specialTags = ['address', 'applet', 'area', 'article', 'aside', 'base', 'basefont', 'bgsound', 'blockquote', 'body', 'br', 'button', 'caption', 'center', 'col', 'colgroup', 'dd', 'details', 'dir', 'div', 'dl', 'dt', 'embed', 'fieldset', 'figcaption', 'figure', 'footer', 'form', 'frame', 'frameset', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'head', 'header', 'hgroup', 'hr', 'html', 'iframe', 'img', 'input', 'isindex', 'li', 'link', 'listing', 'main', 'marquee', 'menu', 'menuitem', 'meta', 'nav', 'noembed', 'noframes', 'noscript', 'object', 'ol', 'p', 'param', 'plaintext', 'pre', 'script', 'section', 'select', 'source', 'style', 'summary', 'table', 'tbody', 'td', 'template', 'textarea', 'tfoot', 'th', 'thead', 'title', 'tr', 'track', 'ul', 'wbr', 'xmp'];

  // https://html.spec.whatwg.org/multipage/syntax.html#has-an-element-in-scope
  var inScopeTags = ['applet', 'caption', 'html', 'table', 'td', 'th', 'marquee', 'object', 'template',

  // https://html.spec.whatwg.org/multipage/syntax.html#html-integration-point
  // TODO: Distinguish by namespace here -- for <title>, including it here
  // errs on the side of fewer warnings
  'foreignObject', 'desc', 'title'];

  // https://html.spec.whatwg.org/multipage/syntax.html#has-an-element-in-button-scope
  var buttonScopeTags = inScopeTags.concat(['button']);

  // https://html.spec.whatwg.org/multipage/syntax.html#generate-implied-end-tags
  var impliedEndTags = ['dd', 'dt', 'li', 'option', 'optgroup', 'p', 'rp', 'rt'];

  var emptyAncestorInfo = {
    current: null,

    formTag: null,
    aTagInScope: null,
    buttonTagInScope: null,
    nobrTagInScope: null,
    pTagInButtonScope: null,

    listItemTagAutoclosing: null,
    dlItemTagAutoclosing: null
  };

  updatedAncestorInfo = function (oldInfo, tag) {
    var ancestorInfo = _assign({}, oldInfo || emptyAncestorInfo);
    var info = { tag: tag };

    if (inScopeTags.indexOf(tag) !== -1) {
      ancestorInfo.aTagInScope = null;
      ancestorInfo.buttonTagInScope = null;
      ancestorInfo.nobrTagInScope = null;
    }
    if (buttonScopeTags.indexOf(tag) !== -1) {
      ancestorInfo.pTagInButtonScope = null;
    }

    // See rules for 'li', 'dd', 'dt' start tags in
    // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-inbody
    if (specialTags.indexOf(tag) !== -1 && tag !== 'address' && tag !== 'div' && tag !== 'p') {
      ancestorInfo.listItemTagAutoclosing = null;
      ancestorInfo.dlItemTagAutoclosing = null;
    }

    ancestorInfo.current = info;

    if (tag === 'form') {
      ancestorInfo.formTag = info;
    }
    if (tag === 'a') {
      ancestorInfo.aTagInScope = info;
    }
    if (tag === 'button') {
      ancestorInfo.buttonTagInScope = info;
    }
    if (tag === 'nobr') {
      ancestorInfo.nobrTagInScope = info;
    }
    if (tag === 'p') {
      ancestorInfo.pTagInButtonScope = info;
    }
    if (tag === 'li') {
      ancestorInfo.listItemTagAutoclosing = info;
    }
    if (tag === 'dd' || tag === 'dt') {
      ancestorInfo.dlItemTagAutoclosing = info;
    }

    return ancestorInfo;
  };

  /**
   * Returns whether
   */
  var isTagValidWithParent = function (tag, parentTag) {
    // First, let's check if we're in an unusual parsing mode...
    switch (parentTag) {
      // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-inselect
      case 'select':
        return tag === 'option' || tag === 'optgroup' || tag === '#text';
      case 'optgroup':
        return tag === 'option' || tag === '#text';
      // Strictly speaking, seeing an <option> doesn't mean we're in a <select>
      // but
      case 'option':
        return tag === '#text';
      // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-intd
      // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-incaption
      // No special behavior since these rules fall back to "in body" mode for
      // all except special table nodes which cause bad parsing behavior anyway.

      // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-intr
      case 'tr':
        return tag === 'th' || tag === 'td' || tag === 'style' || tag === 'script' || tag === 'template';
      // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-intbody
      case 'tbody':
      case 'thead':
      case 'tfoot':
        return tag === 'tr' || tag === 'style' || tag === 'script' || tag === 'template';
      // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-incolgroup
      case 'colgroup':
        return tag === 'col' || tag === 'template';
      // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-intable
      case 'table':
        return tag === 'caption' || tag === 'colgroup' || tag === 'tbody' || tag === 'tfoot' || tag === 'thead' || tag === 'style' || tag === 'script' || tag === 'template';
      // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-inhead
      case 'head':
        return tag === 'base' || tag === 'basefont' || tag === 'bgsound' || tag === 'link' || tag === 'meta' || tag === 'title' || tag === 'noscript' || tag === 'noframes' || tag === 'style' || tag === 'script' || tag === 'template';
      // https://html.spec.whatwg.org/multipage/semantics.html#the-html-element
      case 'html':
        return tag === 'head' || tag === 'body' || tag === 'frameset';
      case 'frameset':
        return tag === 'frame';
      case '#document':
        return tag === 'html';
    }

    // Probably in the "in body" parsing mode, so we outlaw only tag combos
    // where the parsing rules cause implicit opens or closes to be added.
    // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-inbody
    switch (tag) {
      case 'h1':
      case 'h2':
      case 'h3':
      case 'h4':
      case 'h5':
      case 'h6':
        return parentTag !== 'h1' && parentTag !== 'h2' && parentTag !== 'h3' && parentTag !== 'h4' && parentTag !== 'h5' && parentTag !== 'h6';

      case 'rp':
      case 'rt':
        return impliedEndTags.indexOf(parentTag) === -1;

      case 'body':
      case 'caption':
      case 'col':
      case 'colgroup':
      case 'frameset':
      case 'frame':
      case 'head':
      case 'html':
      case 'tbody':
      case 'td':
      case 'tfoot':
      case 'th':
      case 'thead':
      case 'tr':
        // These tags are only valid with a few parents that have special child
        // parsing rules -- if we're down here, then none of those matched and
        // so we allow it only if we don't know what the parent is, as all other
        // cases are invalid.
        return parentTag == null;
    }

    return true;
  };

  /**
   * Returns whether
   */
  var findInvalidAncestorForTag = function (tag, ancestorInfo) {
    switch (tag) {
      case 'address':
      case 'article':
      case 'aside':
      case 'blockquote':
      case 'center':
      case 'details':
      case 'dialog':
      case 'dir':
      case 'div':
      case 'dl':
      case 'fieldset':
      case 'figcaption':
      case 'figure':
      case 'footer':
      case 'header':
      case 'hgroup':
      case 'main':
      case 'menu':
      case 'nav':
      case 'ol':
      case 'p':
      case 'section':
      case 'summary':
      case 'ul':
      case 'pre':
      case 'listing':
      case 'table':
      case 'hr':
      case 'xmp':
      case 'h1':
      case 'h2':
      case 'h3':
      case 'h4':
      case 'h5':
      case 'h6':
        return ancestorInfo.pTagInButtonScope;

      case 'form':
        return ancestorInfo.formTag || ancestorInfo.pTagInButtonScope;

      case 'li':
        return ancestorInfo.listItemTagAutoclosing;

      case 'dd':
      case 'dt':
        return ancestorInfo.dlItemTagAutoclosing;

      case 'button':
        return ancestorInfo.buttonTagInScope;

      case 'a':
        // Spec says something about storing a list of markers, but it sounds
        // equivalent to this check.
        return ancestorInfo.aTagInScope;

      case 'nobr':
        return ancestorInfo.nobrTagInScope;
    }

    return null;
  };

  var didWarn$1 = {};

  validateDOMNesting = function (childTag, childText, ancestorInfo) {
    ancestorInfo = ancestorInfo || emptyAncestorInfo;
    var parentInfo = ancestorInfo.current;
    var parentTag = parentInfo && parentInfo.tag;

    if (childText != null) {
      !(childTag == null) ? warningWithoutStack$1(false, 'validateDOMNesting: when childText is passed, childTag should be null') : void 0;
      childTag = '#text';
    }

    var invalidParent = isTagValidWithParent(childTag, parentTag) ? null : parentInfo;
    var invalidAncestor = invalidParent ? null : findInvalidAncestorForTag(childTag, ancestorInfo);
    var invalidParentOrAncestor = invalidParent || invalidAncestor;
    if (!invalidParentOrAncestor) {
      return;
    }

    var ancestorTag = invalidParentOrAncestor.tag;
    var addendum = getCurrentFiberStackInDev();

    var warnKey = !!invalidParent + '|' + childTag + '|' + ancestorTag + '|' + addendum;
    if (didWarn$1[warnKey]) {
      return;
    }
    didWarn$1[warnKey] = true;

    var tagDisplayName = childTag;
    var whitespaceInfo = '';
    if (childTag === '#text') {
      if (/\S/.test(childText)) {
        tagDisplayName = 'Text nodes';
      } else {
        tagDisplayName = 'Whitespace text nodes';
        whitespaceInfo = " Make sure you don't have any extra whitespace between tags on " + 'each line of your source code.';
      }
    } else {
      tagDisplayName = '<' + childTag + '>';
    }

    if (invalidParent) {
      var info = '';
      if (ancestorTag === 'table' && childTag === 'tr') {
        info += ' Add a <tbody> to your code to match the DOM tree generated by ' + 'the browser.';
      }
      warningWithoutStack$1(false, 'validateDOMNesting(...): %s cannot appear as a child of <%s>.%s%s%s', tagDisplayName, ancestorTag, whitespaceInfo, info, addendum);
    } else {
      warningWithoutStack$1(false, 'validateDOMNesting(...): %s cannot appear as a descendant of ' + '<%s>.%s', tagDisplayName, ancestorTag, addendum);
    }
  };
}

// Renderers that don't support persistence
// can re-export everything from this module.

function shim() {
  (function () {
    {
      {
        throw ReactError(Error('The current renderer does not support persistence. This error is likely caused by a bug in React. Please file an issue.'));
      }
    }
  })();
}

// Persistence (when unsupported)
var supportsPersistence = false;
var cloneInstance = shim;
var cloneFundamentalInstance = shim;
var createContainerChildSet = shim;
var appendChildToContainerChildSet = shim;
var finalizeContainerChildren = shim;
var replaceContainerChildren = shim;
var cloneHiddenInstance = shim;
var cloneHiddenTextInstance = shim;

var SUPPRESS_HYDRATION_WARNING = void 0;
{
  SUPPRESS_HYDRATION_WARNING = 'suppressHydrationWarning';
}

var SUSPENSE_START_DATA = '$';
var SUSPENSE_END_DATA = '/$';
var SUSPENSE_PENDING_START_DATA = '$?';
var SUSPENSE_FALLBACK_START_DATA = '$!';

var STYLE = 'style';

var eventsEnabled = null;
var selectionInformation = null;

function shouldAutoFocusHostComponent(type, props) {
  switch (type) {
    case 'button':
    case 'input':
    case 'select':
    case 'textarea':
      return !!props.autoFocus;
  }
  return false;
}

function getRootHostContext(rootContainerInstance) {
  var type = void 0;
  var namespace = void 0;
  var nodeType = rootContainerInstance.nodeType;
  switch (nodeType) {
    case DOCUMENT_NODE:
    case DOCUMENT_FRAGMENT_NODE:
      {
        type = nodeType === DOCUMENT_NODE ? '#document' : '#fragment';
        var root = rootContainerInstance.documentElement;
        namespace = root ? root.namespaceURI : getChildNamespace(null, '');
        break;
      }
    default:
      {
        var container = nodeType === COMMENT_NODE ? rootContainerInstance.parentNode : rootContainerInstance;
        var ownNamespace = container.namespaceURI || null;
        type = container.tagName;
        namespace = getChildNamespace(ownNamespace, type);
        break;
      }
  }
  {
    var validatedTag = type.toLowerCase();
    var _ancestorInfo = updatedAncestorInfo(null, validatedTag);
    return { namespace: namespace, ancestorInfo: _ancestorInfo };
  }
  return namespace;
}

function getChildHostContext(parentHostContext, type, rootContainerInstance) {
  {
    var parentHostContextDev = parentHostContext;
    var _namespace = getChildNamespace(parentHostContextDev.namespace, type);
    var _ancestorInfo2 = updatedAncestorInfo(parentHostContextDev.ancestorInfo, type);
    return { namespace: _namespace, ancestorInfo: _ancestorInfo2 };
  }
  var parentNamespace = parentHostContext;
  return getChildNamespace(parentNamespace, type);
}

function getPublicInstance(instance) {
  return instance;
}

function prepareForCommit(containerInfo) {
  eventsEnabled = isEnabled();
  selectionInformation = getSelectionInformation();
  setEnabled(false);
}

function resetAfterCommit(containerInfo) {
  restoreSelection(selectionInformation);
  selectionInformation = null;
  setEnabled(eventsEnabled);
  eventsEnabled = null;
}

function createInstance(type, props, rootContainerInstance, hostContext, internalInstanceHandle) {
  var parentNamespace = void 0;
  {
    // TODO: take namespace into account when validating.
    var hostContextDev = hostContext;
    validateDOMNesting(type, null, hostContextDev.ancestorInfo);
    if (typeof props.children === 'string' || typeof props.children === 'number') {
      var string = '' + props.children;
      var ownAncestorInfo = updatedAncestorInfo(hostContextDev.ancestorInfo, type);
      validateDOMNesting(null, string, ownAncestorInfo);
    }
    parentNamespace = hostContextDev.namespace;
  }
  var domElement = createElement(type, props, rootContainerInstance, parentNamespace);
  precacheFiberNode(internalInstanceHandle, domElement);
  updateFiberProps(domElement, props);
  return domElement;
}

function appendInitialChild(parentInstance, child) {
  parentInstance.appendChild(child);
}

function finalizeInitialChildren(domElement, type, props, rootContainerInstance, hostContext) {
  setInitialProperties(domElement, type, props, rootContainerInstance);
  return shouldAutoFocusHostComponent(type, props);
}

function prepareUpdate(domElement, type, oldProps, newProps, rootContainerInstance, hostContext) {
  {
    var hostContextDev = hostContext;
    if (typeof newProps.children !== typeof oldProps.children && (typeof newProps.children === 'string' || typeof newProps.children === 'number')) {
      var string = '' + newProps.children;
      var ownAncestorInfo = updatedAncestorInfo(hostContextDev.ancestorInfo, type);
      validateDOMNesting(null, string, ownAncestorInfo);
    }
  }
  return diffProperties(domElement, type, oldProps, newProps, rootContainerInstance);
}

function shouldSetTextContent(type, props) {
  return type === 'textarea' || type === 'option' || type === 'noscript' || typeof props.children === 'string' || typeof props.children === 'number' || typeof props.dangerouslySetInnerHTML === 'object' && props.dangerouslySetInnerHTML !== null && props.dangerouslySetInnerHTML.__html != null;
}

function shouldDeprioritizeSubtree(type, props) {
  return !!props.hidden;
}

function createTextInstance(text, rootContainerInstance, hostContext, internalInstanceHandle) {
  {
    var hostContextDev = hostContext;
    validateDOMNesting(null, text, hostContextDev.ancestorInfo);
  }
  var textNode = createTextNode(text, rootContainerInstance);
  precacheFiberNode(internalInstanceHandle, textNode);
  return textNode;
}

var isPrimaryRenderer = true;
var warnsIfNotActing = true;
// This initialization code may run even on server environments
// if a component just imports ReactDOM (e.g. for findDOMNode).
// Some environments might not have setTimeout or clearTimeout.
var scheduleTimeout = typeof setTimeout === 'function' ? setTimeout : undefined;
var cancelTimeout = typeof clearTimeout === 'function' ? clearTimeout : undefined;
var noTimeout = -1;

// -------------------
//     Mutation
// -------------------

var supportsMutation = true;

function commitMount(domElement, type, newProps, internalInstanceHandle) {
  // Despite the naming that might imply otherwise, this method only
  // fires if there is an `Update` effect scheduled during mounting.
  // This happens if `finalizeInitialChildren` returns `true` (which it
  // does to implement the `autoFocus` attribute on the client). But
  // there are also other cases when this might happen (such as patching
  // up text content during hydration mismatch). So we'll check this again.
  if (shouldAutoFocusHostComponent(type, newProps)) {
    domElement.focus();
  }
}

function commitUpdate(domElement, updatePayload, type, oldProps, newProps, internalInstanceHandle) {
  // Update the props handle so that we know which props are the ones with
  // with current event handlers.
  updateFiberProps(domElement, newProps);
  // Apply the diff to the DOM node.
  updateProperties(domElement, updatePayload, type, oldProps, newProps);
}

function resetTextContent(domElement) {
  setTextContent(domElement, '');
}

function commitTextUpdate(textInstance, oldText, newText) {
  textInstance.nodeValue = newText;
}

function appendChild(parentInstance, child) {
  parentInstance.appendChild(child);
}

function appendChildToContainer(container, child) {
  var parentNode = void 0;
  if (container.nodeType === COMMENT_NODE) {
    parentNode = container.parentNode;
    parentNode.insertBefore(child, container);
  } else {
    parentNode = container;
    parentNode.appendChild(child);
  }
  // This container might be used for a portal.
  // If something inside a portal is clicked, that click should bubble
  // through the React tree. However, on Mobile Safari the click would
  // never bubble through the *DOM* tree unless an ancestor with onclick
  // event exists. So we wouldn't see it and dispatch it.
  // This is why we ensure that non React root containers have inline onclick
  // defined.
  // https://github.com/facebook/react/issues/11918
  var reactRootContainer = container._reactRootContainer;
  if ((reactRootContainer === null || reactRootContainer === undefined) && parentNode.onclick === null) {
    // TODO: This cast may not be sound for SVG, MathML or custom elements.
    trapClickOnNonInteractiveElement(parentNode);
  }
}

function insertBefore(parentInstance, child, beforeChild) {
  parentInstance.insertBefore(child, beforeChild);
}

function insertInContainerBefore(container, child, beforeChild) {
  if (container.nodeType === COMMENT_NODE) {
    container.parentNode.insertBefore(child, beforeChild);
  } else {
    container.insertBefore(child, beforeChild);
  }
}

function removeChild(parentInstance, child) {
  parentInstance.removeChild(child);
}

function removeChildFromContainer(container, child) {
  if (container.nodeType === COMMENT_NODE) {
    container.parentNode.removeChild(child);
  } else {
    container.removeChild(child);
  }
}

function clearSuspenseBoundary(parentInstance, suspenseInstance) {
  var node = suspenseInstance;
  // Delete all nodes within this suspense boundary.
  // There might be nested nodes so we need to keep track of how
  // deep we are and only break out when we're back on top.
  var depth = 0;
  do {
    var nextNode = node.nextSibling;
    parentInstance.removeChild(node);
    if (nextNode && nextNode.nodeType === COMMENT_NODE) {
      var data = nextNode.data;
      if (data === SUSPENSE_END_DATA) {
        if (depth === 0) {
          parentInstance.removeChild(nextNode);
          return;
        } else {
          depth--;
        }
      } else if (data === SUSPENSE_START_DATA || data === SUSPENSE_PENDING_START_DATA || data === SUSPENSE_FALLBACK_START_DATA) {
        depth++;
      }
    }
    node = nextNode;
  } while (node);
  // TODO: Warn, we didn't find the end comment boundary.
}

function clearSuspenseBoundaryFromContainer(container, suspenseInstance) {
  if (container.nodeType === COMMENT_NODE) {
    clearSuspenseBoundary(container.parentNode, suspenseInstance);
  } else if (container.nodeType === ELEMENT_NODE) {
    clearSuspenseBoundary(container, suspenseInstance);
  } else {
    // Document nodes should never contain suspense boundaries.
  }
}

function hideInstance(instance) {
  // TODO: Does this work for all element types? What about MathML? Should we
  // pass host context to this method?
  instance = instance;
  var style = instance.style;
  if (typeof style.setProperty === 'function') {
    style.setProperty('display', 'none', 'important');
  } else {
    style.display = 'none';
  }
}

function hideTextInstance(textInstance) {
  textInstance.nodeValue = '';
}

function unhideInstance(instance, props) {
  instance = instance;
  var styleProp = props[STYLE];
  var display = styleProp !== undefined && styleProp !== null && styleProp.hasOwnProperty('display') ? styleProp.display : null;
  instance.style.display = dangerousStyleValue('display', display);
}

function unhideTextInstance(textInstance, text) {
  textInstance.nodeValue = text;
}

// -------------------
//     Hydration
// -------------------

var supportsHydration = true;

function canHydrateInstance(instance, type, props) {
  if (instance.nodeType !== ELEMENT_NODE || type.toLowerCase() !== instance.nodeName.toLowerCase()) {
    return null;
  }
  // This has now been refined to an element node.
  return instance;
}

function canHydrateTextInstance(instance, text) {
  if (text === '' || instance.nodeType !== TEXT_NODE) {
    // Empty strings are not parsed by HTML so there won't be a correct match here.
    return null;
  }
  // This has now been refined to a text node.
  return instance;
}

function canHydrateSuspenseInstance(instance) {
  if (instance.nodeType !== COMMENT_NODE) {
    // Empty strings are not parsed by HTML so there won't be a correct match here.
    return null;
  }
  // This has now been refined to a suspense node.
  return instance;
}

function isSuspenseInstancePending(instance) {
  return instance.data === SUSPENSE_PENDING_START_DATA;
}

function isSuspenseInstanceFallback(instance) {
  return instance.data === SUSPENSE_FALLBACK_START_DATA;
}

function registerSuspenseInstanceRetry(instance, callback) {
  instance._reactRetry = callback;
}

function getNextHydratable(node) {
  // Skip non-hydratable nodes.
  for (; node != null; node = node.nextSibling) {
    var nodeType = node.nodeType;
    if (nodeType === ELEMENT_NODE || nodeType === TEXT_NODE) {
      break;
    }
    if (enableSuspenseServerRenderer) {
      if (nodeType === COMMENT_NODE) {
        break;
      }
      var nodeData = node.data;
      if (nodeData === SUSPENSE_START_DATA || nodeData === SUSPENSE_FALLBACK_START_DATA || nodeData === SUSPENSE_PENDING_START_DATA) {
        break;
      }
    }
  }
  return node;
}

function getNextHydratableSibling(instance) {
  return getNextHydratable(instance.nextSibling);
}

function getFirstHydratableChild(parentInstance) {
  return getNextHydratable(parentInstance.firstChild);
}

function hydrateInstance(instance, type, props, rootContainerInstance, hostContext, internalInstanceHandle) {
  precacheFiberNode(internalInstanceHandle, instance);
  // TODO: Possibly defer this until the commit phase where all the events
  // get attached.
  updateFiberProps(instance, props);
  var parentNamespace = void 0;
  {
    var hostContextDev = hostContext;
    parentNamespace = hostContextDev.namespace;
  }
  return diffHydratedProperties(instance, type, props, parentNamespace, rootContainerInstance);
}

function hydrateTextInstance(textInstance, text, internalInstanceHandle) {
  precacheFiberNode(internalInstanceHandle, textInstance);
  return diffHydratedText(textInstance, text);
}

function getNextHydratableInstanceAfterSuspenseInstance(suspenseInstance) {
  var node = suspenseInstance.nextSibling;
  // Skip past all nodes within this suspense boundary.
  // There might be nested nodes so we need to keep track of how
  // deep we are and only break out when we're back on top.
  var depth = 0;
  while (node) {
    if (node.nodeType === COMMENT_NODE) {
      var data = node.data;
      if (data === SUSPENSE_END_DATA) {
        if (depth === 0) {
          return getNextHydratableSibling(node);
        } else {
          depth--;
        }
      } else if (data === SUSPENSE_START_DATA) {
        depth++;
      }
    }
    node = node.nextSibling;
  }
  // TODO: Warn, we didn't find the end comment boundary.
  return null;
}

function didNotMatchHydratedContainerTextInstance(parentContainer, textInstance, text) {
  {
    warnForUnmatchedText(textInstance, text);
  }
}

function didNotMatchHydratedTextInstance(parentType, parentProps, parentInstance, textInstance, text) {
  if (true && parentProps[SUPPRESS_HYDRATION_WARNING] !== true) {
    warnForUnmatchedText(textInstance, text);
  }
}

function didNotHydrateContainerInstance(parentContainer, instance) {
  {
    if (instance.nodeType === ELEMENT_NODE) {
      warnForDeletedHydratableElement(parentContainer, instance);
    } else if (instance.nodeType === COMMENT_NODE) {
      // TODO: warnForDeletedHydratableSuspenseBoundary
    } else {
      warnForDeletedHydratableText(parentContainer, instance);
    }
  }
}

function didNotHydrateInstance(parentType, parentProps, parentInstance, instance) {
  if (true && parentProps[SUPPRESS_HYDRATION_WARNING] !== true) {
    if (instance.nodeType === ELEMENT_NODE) {
      warnForDeletedHydratableElement(parentInstance, instance);
    } else if (instance.nodeType === COMMENT_NODE) {
      // TODO: warnForDeletedHydratableSuspenseBoundary
    } else {
      warnForDeletedHydratableText(parentInstance, instance);
    }
  }
}

function didNotFindHydratableContainerInstance(parentContainer, type, props) {
  {
    warnForInsertedHydratedElement(parentContainer, type, props);
  }
}

function didNotFindHydratableContainerTextInstance(parentContainer, text) {
  {
    warnForInsertedHydratedText(parentContainer, text);
  }
}



function didNotFindHydratableInstance(parentType, parentProps, parentInstance, type, props) {
  if (true && parentProps[SUPPRESS_HYDRATION_WARNING] !== true) {
    warnForInsertedHydratedElement(parentInstance, type, props);
  }
}

function didNotFindHydratableTextInstance(parentType, parentProps, parentInstance, text) {
  if (true && parentProps[SUPPRESS_HYDRATION_WARNING] !== true) {
    warnForInsertedHydratedText(parentInstance, text);
  }
}

function didNotFindHydratableSuspenseInstance(parentType, parentProps, parentInstance) {
  if (true && parentProps[SUPPRESS_HYDRATION_WARNING] !== true) {
    // TODO: warnForInsertedHydratedSuspense(parentInstance);
  }
}

function mountResponderInstance(responder, responderInstance, responderProps, responderState, instance, rootContainerInstance) {
  // Listen to events
  var doc = rootContainerInstance.ownerDocument;
  var documentBody = doc.body || doc;
  var _ref = responder,
      rootEventTypes = _ref.rootEventTypes,
      targetEventTypes = _ref.targetEventTypes;

  if (targetEventTypes !== null) {
    listenToEventResponderEventTypes(targetEventTypes, documentBody);
  }
  if (rootEventTypes !== null) {
    addRootEventTypesForResponderInstance(responderInstance, rootEventTypes);
    listenToEventResponderEventTypes(rootEventTypes, documentBody);
  }
  mountEventResponder(responder, responderInstance, responderProps, responderState);
  return responderInstance;
}

function unmountResponderInstance(responderInstance) {
  if (enableFlareAPI) {
    // TODO stop listening to targetEventTypes
    unmountEventResponder(responderInstance);
  }
}

function getFundamentalComponentInstance(fundamentalInstance) {
  if (enableFundamentalAPI) {
    var currentFiber = fundamentalInstance.currentFiber,
        impl = fundamentalInstance.impl,
        _props = fundamentalInstance.props,
        state = fundamentalInstance.state;

    var instance = impl.getInstance(null, _props, state);
    precacheFiberNode(currentFiber, instance);
    return instance;
  }
  // Because of the flag above, this gets around the Flow error;
  return null;
}

function mountFundamentalComponent(fundamentalInstance) {
  if (enableFundamentalAPI) {
    var impl = fundamentalInstance.impl,
        instance = fundamentalInstance.instance,
        _props2 = fundamentalInstance.props,
        state = fundamentalInstance.state;

    var onMount = impl.onMount;
    if (onMount !== undefined) {
      onMount(null, instance, _props2, state);
    }
  }
}

function shouldUpdateFundamentalComponent(fundamentalInstance) {
  if (enableFundamentalAPI) {
    var impl = fundamentalInstance.impl,
        prevProps = fundamentalInstance.prevProps,
        _props3 = fundamentalInstance.props,
        state = fundamentalInstance.state;

    var shouldUpdate = impl.shouldUpdate;
    if (shouldUpdate !== undefined) {
      return shouldUpdate(null, prevProps, _props3, state);
    }
  }
  return true;
}

function updateFundamentalComponent(fundamentalInstance) {
  if (enableFundamentalAPI) {
    var impl = fundamentalInstance.impl,
        instance = fundamentalInstance.instance,
        prevProps = fundamentalInstance.prevProps,
        _props4 = fundamentalInstance.props,
        state = fundamentalInstance.state;

    var onUpdate = impl.onUpdate;
    if (onUpdate !== undefined) {
      onUpdate(null, instance, prevProps, _props4, state);
    }
  }
}

function unmountFundamentalComponent(fundamentalInstance) {
  if (enableFundamentalAPI) {
    var impl = fundamentalInstance.impl,
        instance = fundamentalInstance.instance,
        _props5 = fundamentalInstance.props,
        state = fundamentalInstance.state;

    var onUnmount = impl.onUnmount;
    if (onUnmount !== undefined) {
      onUnmount(null, instance, _props5, state);
    }
  }
}

// Prefix measurements so that it's possible to filter them.
// Longer prefixes are hard to read in DevTools.
var reactEmoji = '\u269B';
var warningEmoji = '\u26D4';
var supportsUserTiming = typeof performance !== 'undefined' && typeof performance.mark === 'function' && typeof performance.clearMarks === 'function' && typeof performance.measure === 'function' && typeof performance.clearMeasures === 'function';

// Keep track of current fiber so that we know the path to unwind on pause.
// TODO: this looks the same as nextUnitOfWork in scheduler. Can we unify them?
var currentFiber = null;
// If we're in the middle of user code, which fiber and method is it?
// Reusing `currentFiber` would be confusing for this because user code fiber
// can change during commit phase too, but we don't need to unwind it (since
// lifecycles in the commit phase don't resemble a tree).
var currentPhase = null;
var currentPhaseFiber = null;
// Did lifecycle hook schedule an update? This is often a performance problem,
// so we will keep track of it, and include it in the report.
// Track commits caused by cascading updates.
var isCommitting = false;
var hasScheduledUpdateInCurrentCommit = false;
var hasScheduledUpdateInCurrentPhase = false;
var commitCountInCurrentWorkLoop = 0;
var effectCountInCurrentCommit = 0;
var isWaitingForCallback = false;
// During commits, we only show a measurement once per method name
// to avoid stretch the commit phase with measurement overhead.
var labelsInCurrentCommit = new Set();

var formatMarkName = function (markName) {
  return reactEmoji + ' ' + markName;
};

var formatLabel = function (label, warning) {
  var prefix = warning ? warningEmoji + ' ' : reactEmoji + ' ';
  var suffix = warning ? ' Warning: ' + warning : '';
  return '' + prefix + label + suffix;
};

var beginMark = function (markName) {
  performance.mark(formatMarkName(markName));
};

var clearMark = function (markName) {
  performance.clearMarks(formatMarkName(markName));
};

var endMark = function (label, markName, warning) {
  var formattedMarkName = formatMarkName(markName);
  var formattedLabel = formatLabel(label, warning);
  try {
    performance.measure(formattedLabel, formattedMarkName);
  } catch (err) {}
  // If previous mark was missing for some reason, this will throw.
  // This could only happen if React crashed in an unexpected place earlier.
  // Don't pile on with more errors.

  // Clear marks immediately to avoid growing buffer.
  performance.clearMarks(formattedMarkName);
  performance.clearMeasures(formattedLabel);
};

var getFiberMarkName = function (label, debugID) {
  return label + ' (#' + debugID + ')';
};

var getFiberLabel = function (componentName, isMounted, phase) {
  if (phase === null) {
    // These are composite component total time measurements.
    return componentName + ' [' + (isMounted ? 'update' : 'mount') + ']';
  } else {
    // Composite component methods.
    return componentName + '.' + phase;
  }
};

var beginFiberMark = function (fiber, phase) {
  var componentName = getComponentName(fiber.type) || 'Unknown';
  var debugID = fiber._debugID;
  var isMounted = fiber.alternate !== null;
  var label = getFiberLabel(componentName, isMounted, phase);

  if (isCommitting && labelsInCurrentCommit.has(label)) {
    // During the commit phase, we don't show duplicate labels because
    // there is a fixed overhead for every measurement, and we don't
    // want to stretch the commit phase beyond necessary.
    return false;
  }
  labelsInCurrentCommit.add(label);

  var markName = getFiberMarkName(label, debugID);
  beginMark(markName);
  return true;
};

var clearFiberMark = function (fiber, phase) {
  var componentName = getComponentName(fiber.type) || 'Unknown';
  var debugID = fiber._debugID;
  var isMounted = fiber.alternate !== null;
  var label = getFiberLabel(componentName, isMounted, phase);
  var markName = getFiberMarkName(label, debugID);
  clearMark(markName);
};

var endFiberMark = function (fiber, phase, warning) {
  var componentName = getComponentName(fiber.type) || 'Unknown';
  var debugID = fiber._debugID;
  var isMounted = fiber.alternate !== null;
  var label = getFiberLabel(componentName, isMounted, phase);
  var markName = getFiberMarkName(label, debugID);
  endMark(label, markName, warning);
};

var shouldIgnoreFiber = function (fiber) {
  // Host components should be skipped in the timeline.
  // We could check typeof fiber.type, but does this work with RN?
  switch (fiber.tag) {
    case HostRoot:
    case HostComponent:
    case HostText:
    case HostPortal:
    case Fragment:
    case ContextProvider:
    case ContextConsumer:
    case Mode:
      return true;
    default:
      return false;
  }
};

var clearPendingPhaseMeasurement = function () {
  if (currentPhase !== null && currentPhaseFiber !== null) {
    clearFiberMark(currentPhaseFiber, currentPhase);
  }
  currentPhaseFiber = null;
  currentPhase = null;
  hasScheduledUpdateInCurrentPhase = false;
};

var pauseTimers = function () {
  // Stops all currently active measurements so that they can be resumed
  // if we continue in a later deferred loop from the same unit of work.
  var fiber = currentFiber;
  while (fiber) {
    if (fiber._debugIsCurrentlyTiming) {
      endFiberMark(fiber, null, null);
    }
    fiber = fiber.return;
  }
};

var resumeTimersRecursively = function (fiber) {
  if (fiber.return !== null) {
    resumeTimersRecursively(fiber.return);
  }
  if (fiber._debugIsCurrentlyTiming) {
    beginFiberMark(fiber, null);
  }
};

var resumeTimers = function () {
  // Resumes all measurements that were active during the last deferred loop.
  if (currentFiber !== null) {
    resumeTimersRecursively(currentFiber);
  }
};

function recordEffect() {
  if (enableUserTimingAPI) {
    effectCountInCurrentCommit++;
  }
}

function recordScheduleUpdate() {
  if (enableUserTimingAPI) {
    if (isCommitting) {
      hasScheduledUpdateInCurrentCommit = true;
    }
    if (currentPhase !== null && currentPhase !== 'componentWillMount' && currentPhase !== 'componentWillReceiveProps') {
      hasScheduledUpdateInCurrentPhase = true;
    }
  }
}

function startRequestCallbackTimer() {
  if (enableUserTimingAPI) {
    if (supportsUserTiming && !isWaitingForCallback) {
      isWaitingForCallback = true;
      beginMark('(Waiting for async callback...)');
    }
  }
}

function stopRequestCallbackTimer(didExpire) {
  if (enableUserTimingAPI) {
    if (supportsUserTiming) {
      isWaitingForCallback = false;
      var warning = didExpire ? 'Update expired; will flush synchronously' : null;
      endMark('(Waiting for async callback...)', '(Waiting for async callback...)', warning);
    }
  }
}

function startWorkTimer(fiber) {
  if (enableUserTimingAPI) {
    if (!supportsUserTiming || shouldIgnoreFiber(fiber)) {
      return;
    }
    // If we pause, this is the fiber to unwind from.
    currentFiber = fiber;
    if (!beginFiberMark(fiber, null)) {
      return;
    }
    fiber._debugIsCurrentlyTiming = true;
  }
}

function cancelWorkTimer(fiber) {
  if (enableUserTimingAPI) {
    if (!supportsUserTiming || shouldIgnoreFiber(fiber)) {
      return;
    }
    // Remember we shouldn't complete measurement for this fiber.
    // Otherwise flamechart will be deep even for small updates.
    fiber._debugIsCurrentlyTiming = false;
    clearFiberMark(fiber, null);
  }
}

function stopWorkTimer(fiber) {
  if (enableUserTimingAPI) {
    if (!supportsUserTiming || shouldIgnoreFiber(fiber)) {
      return;
    }
    // If we pause, its parent is the fiber to unwind from.
    currentFiber = fiber.return;
    if (!fiber._debugIsCurrentlyTiming) {
      return;
    }
    fiber._debugIsCurrentlyTiming = false;
    endFiberMark(fiber, null, null);
  }
}

function stopFailedWorkTimer(fiber) {
  if (enableUserTimingAPI) {
    if (!supportsUserTiming || shouldIgnoreFiber(fiber)) {
      return;
    }
    // If we pause, its parent is the fiber to unwind from.
    currentFiber = fiber.return;
    if (!fiber._debugIsCurrentlyTiming) {
      return;
    }
    fiber._debugIsCurrentlyTiming = false;
    var warning = fiber.tag === SuspenseComponent || fiber.tag === DehydratedSuspenseComponent ? 'Rendering was suspended' : 'An error was thrown inside this error boundary';
    endFiberMark(fiber, null, warning);
  }
}

function startPhaseTimer(fiber, phase) {
  if (enableUserTimingAPI) {
    if (!supportsUserTiming) {
      return;
    }
    clearPendingPhaseMeasurement();
    if (!beginFiberMark(fiber, phase)) {
      return;
    }
    currentPhaseFiber = fiber;
    currentPhase = phase;
  }
}

function stopPhaseTimer() {
  if (enableUserTimingAPI) {
    if (!supportsUserTiming) {
      return;
    }
    if (currentPhase !== null && currentPhaseFiber !== null) {
      var warning = hasScheduledUpdateInCurrentPhase ? 'Scheduled a cascading update' : null;
      endFiberMark(currentPhaseFiber, currentPhase, warning);
    }
    currentPhase = null;
    currentPhaseFiber = null;
  }
}

function startWorkLoopTimer(nextUnitOfWork) {
  if (enableUserTimingAPI) {
    currentFiber = nextUnitOfWork;
    if (!supportsUserTiming) {
      return;
    }
    commitCountInCurrentWorkLoop = 0;
    // This is top level call.
    // Any other measurements are performed within.
    beginMark('(React Tree Reconciliation)');
    // Resume any measurements that were in progress during the last loop.
    resumeTimers();
  }
}

function stopWorkLoopTimer(interruptedBy, didCompleteRoot) {
  if (enableUserTimingAPI) {
    if (!supportsUserTiming) {
      return;
    }
    var warning = null;
    if (interruptedBy !== null) {
      if (interruptedBy.tag === HostRoot) {
        warning = 'A top-level update interrupted the previous render';
      } else {
        var componentName = getComponentName(interruptedBy.type) || 'Unknown';
        warning = 'An update to ' + componentName + ' interrupted the previous render';
      }
    } else if (commitCountInCurrentWorkLoop > 1) {
      warning = 'There were cascading updates';
    }
    commitCountInCurrentWorkLoop = 0;
    var label = didCompleteRoot ? '(React Tree Reconciliation: Completed Root)' : '(React Tree Reconciliation: Yielded)';
    // Pause any measurements until the next loop.
    pauseTimers();
    endMark(label, '(React Tree Reconciliation)', warning);
  }
}

function startCommitTimer() {
  if (enableUserTimingAPI) {
    if (!supportsUserTiming) {
      return;
    }
    isCommitting = true;
    hasScheduledUpdateInCurrentCommit = false;
    labelsInCurrentCommit.clear();
    beginMark('(Committing Changes)');
  }
}

function stopCommitTimer() {
  if (enableUserTimingAPI) {
    if (!supportsUserTiming) {
      return;
    }

    var warning = null;
    if (hasScheduledUpdateInCurrentCommit) {
      warning = 'Lifecycle hook scheduled a cascading update';
    } else if (commitCountInCurrentWorkLoop > 0) {
      warning = 'Caused by a cascading update in earlier commit';
    }
    hasScheduledUpdateInCurrentCommit = false;
    commitCountInCurrentWorkLoop++;
    isCommitting = false;
    labelsInCurrentCommit.clear();

    endMark('(Committing Changes)', '(Committing Changes)', warning);
  }
}

function startCommitSnapshotEffectsTimer() {
  if (enableUserTimingAPI) {
    if (!supportsUserTiming) {
      return;
    }
    effectCountInCurrentCommit = 0;
    beginMark('(Committing Snapshot Effects)');
  }
}

function stopCommitSnapshotEffectsTimer() {
  if (enableUserTimingAPI) {
    if (!supportsUserTiming) {
      return;
    }
    var count = effectCountInCurrentCommit;
    effectCountInCurrentCommit = 0;
    endMark('(Committing Snapshot Effects: ' + count + ' Total)', '(Committing Snapshot Effects)', null);
  }
}

function startCommitHostEffectsTimer() {
  if (enableUserTimingAPI) {
    if (!supportsUserTiming) {
      return;
    }
    effectCountInCurrentCommit = 0;
    beginMark('(Committing Host Effects)');
  }
}

function stopCommitHostEffectsTimer() {
  if (enableUserTimingAPI) {
    if (!supportsUserTiming) {
      return;
    }
    var count = effectCountInCurrentCommit;
    effectCountInCurrentCommit = 0;
    endMark('(Committing Host Effects: ' + count + ' Total)', '(Committing Host Effects)', null);
  }
}

function startCommitLifeCyclesTimer() {
  if (enableUserTimingAPI) {
    if (!supportsUserTiming) {
      return;
    }
    effectCountInCurrentCommit = 0;
    beginMark('(Calling Lifecycle Methods)');
  }
}

function stopCommitLifeCyclesTimer() {
  if (enableUserTimingAPI) {
    if (!supportsUserTiming) {
      return;
    }
    var count = effectCountInCurrentCommit;
    effectCountInCurrentCommit = 0;
    endMark('(Calling Lifecycle Methods: ' + count + ' Total)', '(Calling Lifecycle Methods)', null);
  }
}

var valueStack = [];

var fiberStack = void 0;

{
  fiberStack = [];
}

var index = -1;

function createCursor(defaultValue) {
  return {
    current: defaultValue
  };
}

function pop(cursor, fiber) {
  if (index < 0) {
    {
      warningWithoutStack$1(false, 'Unexpected pop.');
    }
    return;
  }

  {
    if (fiber !== fiberStack[index]) {
      warningWithoutStack$1(false, 'Unexpected Fiber popped.');
    }
  }

  cursor.current = valueStack[index];

  valueStack[index] = null;

  {
    fiberStack[index] = null;
  }

  index--;
}

function push(cursor, value, fiber) {
  index++;

  valueStack[index] = cursor.current;

  {
    fiberStack[index] = fiber;
  }

  cursor.current = value;
}

var warnedAboutMissingGetChildContext = void 0;

{
  warnedAboutMissingGetChildContext = {};
}

var emptyContextObject = {};
{
  Object.freeze(emptyContextObject);
}

// A cursor to the current merged context object on the stack.
var contextStackCursor = createCursor(emptyContextObject);
// A cursor to a boolean indicating whether the context has changed.
var didPerformWorkStackCursor = createCursor(false);
// Keep track of the previous context object that was on the stack.
// We use this to get access to the parent context after we have already
// pushed the next context provider, and now need to merge their contexts.
var previousContext = emptyContextObject;

function getUnmaskedContext(workInProgress, Component, didPushOwnContextIfProvider) {
  if (disableLegacyContext) {
    return emptyContextObject;
  } else {
    if (didPushOwnContextIfProvider && isContextProvider(Component)) {
      // If the fiber is a context provider itself, when we read its context
      // we may have already pushed its own child context on the stack. A context
      // provider should not "see" its own child context. Therefore we read the
      // previous (parent) context instead for a context provider.
      return previousContext;
    }
    return contextStackCursor.current;
  }
}

function cacheContext(workInProgress, unmaskedContext, maskedContext) {
  if (disableLegacyContext) {
    return;
  } else {
    var instance = workInProgress.stateNode;
    instance.__reactInternalMemoizedUnmaskedChildContext = unmaskedContext;
    instance.__reactInternalMemoizedMaskedChildContext = maskedContext;
  }
}

function getMaskedContext(workInProgress, unmaskedContext) {
  if (disableLegacyContext) {
    return emptyContextObject;
  } else {
    var type = workInProgress.type;
    var contextTypes = type.contextTypes;
    if (!contextTypes) {
      return emptyContextObject;
    }

    // Avoid recreating masked context unless unmasked context has changed.
    // Failing to do this will result in unnecessary calls to componentWillReceiveProps.
    // This may trigger infinite loops if componentWillReceiveProps calls setState.
    var instance = workInProgress.stateNode;
    if (instance && instance.__reactInternalMemoizedUnmaskedChildContext === unmaskedContext) {
      return instance.__reactInternalMemoizedMaskedChildContext;
    }

    var context = {};
    for (var key in contextTypes) {
      context[key] = unmaskedContext[key];
    }

    {
      var name = getComponentName(type) || 'Unknown';
      checkPropTypes(contextTypes, context, 'context', name, getCurrentFiberStackInDev);
    }

    // Cache unmasked context so we can avoid recreating masked context unless necessary.
    // Context is created before the class component is instantiated so check for instance.
    if (instance) {
      cacheContext(workInProgress, unmaskedContext, context);
    }

    return context;
  }
}

function hasContextChanged() {
  if (disableLegacyContext) {
    return false;
  } else {
    return didPerformWorkStackCursor.current;
  }
}

function isContextProvider(type) {
  if (disableLegacyContext) {
    return false;
  } else {
    var childContextTypes = type.childContextTypes;
    return childContextTypes !== null && childContextTypes !== undefined;
  }
}

function popContext(fiber) {
  if (disableLegacyContext) {
    return;
  } else {
    pop(didPerformWorkStackCursor, fiber);
    pop(contextStackCursor, fiber);
  }
}

function popTopLevelContextObject(fiber) {
  if (disableLegacyContext) {
    return;
  } else {
    pop(didPerformWorkStackCursor, fiber);
    pop(contextStackCursor, fiber);
  }
}

function pushTopLevelContextObject(fiber, context, didChange) {
  if (disableLegacyContext) {
    return;
  } else {
    (function () {
      if (!(contextStackCursor.current === emptyContextObject)) {
        {
          throw ReactError(Error('Unexpected context found on stack. This error is likely caused by a bug in React. Please file an issue.'));
        }
      }
    })();

    push(contextStackCursor, context, fiber);
    push(didPerformWorkStackCursor, didChange, fiber);
  }
}

function processChildContext(fiber, type, parentContext) {
  if (disableLegacyContext) {
    return parentContext;
  } else {
    var instance = fiber.stateNode;
    var childContextTypes = type.childContextTypes;

    // TODO (bvaughn) Replace this behavior with an invariant() in the future.
    // It has only been added in Fiber to match the (unintentional) behavior in Stack.
    if (typeof instance.getChildContext !== 'function') {
      {
        var componentName = getComponentName(type) || 'Unknown';

        if (!warnedAboutMissingGetChildContext[componentName]) {
          warnedAboutMissingGetChildContext[componentName] = true;
          warningWithoutStack$1(false, '%s.childContextTypes is specified but there is no getChildContext() method ' + 'on the instance. You can either define getChildContext() on %s or remove ' + 'childContextTypes from it.', componentName, componentName);
        }
      }
      return parentContext;
    }

    var childContext = void 0;
    {
      setCurrentPhase('getChildContext');
    }
    startPhaseTimer(fiber, 'getChildContext');
    childContext = instance.getChildContext();
    stopPhaseTimer();
    {
      setCurrentPhase(null);
    }
    for (var contextKey in childContext) {
      (function () {
        if (!(contextKey in childContextTypes)) {
          {
            throw ReactError(Error((getComponentName(type) || 'Unknown') + '.getChildContext(): key "' + contextKey + '" is not defined in childContextTypes.'));
          }
        }
      })();
    }
    {
      var name = getComponentName(type) || 'Unknown';
      checkPropTypes(childContextTypes, childContext, 'child context', name,
      // In practice, there is one case in which we won't get a stack. It's when
      // somebody calls unstable_renderSubtreeIntoContainer() and we process
      // context from the parent component instance. The stack will be missing
      // because it's outside of the reconciliation, and so the pointer has not
      // been set. This is rare and doesn't matter. We'll also remove that API.
      getCurrentFiberStackInDev);
    }

    return _assign({}, parentContext, childContext);
  }
}

function pushContextProvider(workInProgress) {
  if (disableLegacyContext) {
    return false;
  } else {
    var instance = workInProgress.stateNode;
    // We push the context as early as possible to ensure stack integrity.
    // If the instance does not exist yet, we will push null at first,
    // and replace it on the stack later when invalidating the context.
    var memoizedMergedChildContext = instance && instance.__reactInternalMemoizedMergedChildContext || emptyContextObject;

    // Remember the parent context so we can merge with it later.
    // Inherit the parent's did-perform-work value to avoid inadvertently blocking updates.
    previousContext = contextStackCursor.current;
    push(contextStackCursor, memoizedMergedChildContext, workInProgress);
    push(didPerformWorkStackCursor, didPerformWorkStackCursor.current, workInProgress);

    return true;
  }
}

function invalidateContextProvider(workInProgress, type, didChange) {
  if (disableLegacyContext) {
    return;
  } else {
    var instance = workInProgress.stateNode;
    (function () {
      if (!instance) {
        {
          throw ReactError(Error('Expected to have an instance by this point. This error is likely caused by a bug in React. Please file an issue.'));
        }
      }
    })();

    if (didChange) {
      // Merge parent and own context.
      // Skip this if we're not updating due to sCU.
      // This avoids unnecessarily recomputing memoized values.
      var mergedContext = processChildContext(workInProgress, type, previousContext);
      instance.__reactInternalMemoizedMergedChildContext = mergedContext;

      // Replace the old (or empty) context with the new one.
      // It is important to unwind the context in the reverse order.
      pop(didPerformWorkStackCursor, workInProgress);
      pop(contextStackCursor, workInProgress);
      // Now push the new context and mark that it has changed.
      push(contextStackCursor, mergedContext, workInProgress);
      push(didPerformWorkStackCursor, didChange, workInProgress);
    } else {
      pop(didPerformWorkStackCursor, workInProgress);
      push(didPerformWorkStackCursor, didChange, workInProgress);
    }
  }
}

function findCurrentUnmaskedContext(fiber) {
  if (disableLegacyContext) {
    return emptyContextObject;
  } else {
    // Currently this is only used with renderSubtreeIntoContainer; not sure if it
    // makes sense elsewhere
    (function () {
      if (!(isFiberMounted(fiber) && fiber.tag === ClassComponent)) {
        {
          throw ReactError(Error('Expected subtree parent to be a mounted class component. This error is likely caused by a bug in React. Please file an issue.'));
        }
      }
    })();

    var node = fiber;
    do {
      switch (node.tag) {
        case HostRoot:
          return node.stateNode.context;
        case ClassComponent:
          {
            var Component = node.type;
            if (isContextProvider(Component)) {
              return node.stateNode.__reactInternalMemoizedMergedChildContext;
            }
            break;
          }
      }
      node = node.return;
    } while (node !== null);
    (function () {
      {
        {
          throw ReactError(Error('Found unexpected detached subtree parent. This error is likely caused by a bug in React. Please file an issue.'));
        }
      }
    })();
  }
}

var LegacyRoot = 0;
var BatchedRoot = 1;
var ConcurrentRoot = 2;

// Intentionally not named imports because Rollup would use dynamic dispatch for
// CommonJS interop named imports.
var Scheduler_runWithPriority = Scheduler.unstable_runWithPriority;
var Scheduler_scheduleCallback = Scheduler.unstable_scheduleCallback;
var Scheduler_cancelCallback = Scheduler.unstable_cancelCallback;
var Scheduler_shouldYield = Scheduler.unstable_shouldYield;
var Scheduler_requestPaint = Scheduler.unstable_requestPaint;
var Scheduler_now = Scheduler.unstable_now;
var Scheduler_getCurrentPriorityLevel = Scheduler.unstable_getCurrentPriorityLevel;
var Scheduler_ImmediatePriority = Scheduler.unstable_ImmediatePriority;
var Scheduler_UserBlockingPriority = Scheduler.unstable_UserBlockingPriority;
var Scheduler_NormalPriority = Scheduler.unstable_NormalPriority;
var Scheduler_LowPriority = Scheduler.unstable_LowPriority;
var Scheduler_IdlePriority = Scheduler.unstable_IdlePriority;


if (enableSchedulerTracing) {
  // Provide explicit error message when production+profiling bundle of e.g.
  // react-dom is used with production (non-profiling) bundle of
  // scheduler/tracing
  (function () {
    if (!(tracing.__interactionsRef != null && tracing.__interactionsRef.current != null)) {
      {
        throw ReactError(Error('It is not supported to run the profiling version of a renderer (for example, `react-dom/profiling`) without also replacing the `scheduler/tracing` module with `scheduler/tracing-profiling`. Your bundler might have a setting for aliasing both modules. Learn more at http://fb.me/react-profiling'));
      }
    }
  })();
}

var fakeCallbackNode = {};

// Except for NoPriority, these correspond to Scheduler priorities. We use
// ascending numbers so we can compare them like numbers. They start at 90 to
// avoid clashing with Scheduler's priorities.
var ImmediatePriority = 99;
var UserBlockingPriority$2 = 98;
var NormalPriority = 97;
var LowPriority = 96;
var IdlePriority = 95;
// NoPriority is the absence of priority. Also React-only.
var NoPriority = 90;

var shouldYield = Scheduler_shouldYield;
var requestPaint =
// Fall back gracefully if we're running an older version of Scheduler.
Scheduler_requestPaint !== undefined ? Scheduler_requestPaint : function () {};

var syncQueue = null;
var immediateQueueCallbackNode = null;
var isFlushingSyncQueue = false;
var initialTimeMs = Scheduler_now();

// If the initial timestamp is reasonably small, use Scheduler's `now` directly.
// This will be the case for modern browsers that support `performance.now`. In
// older browsers, Scheduler falls back to `Date.now`, which returns a Unix
// timestamp. In that case, subtract the module initialization time to simulate
// the behavior of performance.now and keep our times small enough to fit
// within 32 bits.
// TODO: Consider lifting this into Scheduler.
var now = initialTimeMs < 10000 ? Scheduler_now : function () {
  return Scheduler_now() - initialTimeMs;
};

function getCurrentPriorityLevel() {
  switch (Scheduler_getCurrentPriorityLevel()) {
    case Scheduler_ImmediatePriority:
      return ImmediatePriority;
    case Scheduler_UserBlockingPriority:
      return UserBlockingPriority$2;
    case Scheduler_NormalPriority:
      return NormalPriority;
    case Scheduler_LowPriority:
      return LowPriority;
    case Scheduler_IdlePriority:
      return IdlePriority;
    default:
      (function () {
        {
          {
            throw ReactError(Error('Unknown priority level.'));
          }
        }
      })();
  }
}

function reactPriorityToSchedulerPriority(reactPriorityLevel) {
  switch (reactPriorityLevel) {
    case ImmediatePriority:
      return Scheduler_ImmediatePriority;
    case UserBlockingPriority$2:
      return Scheduler_UserBlockingPriority;
    case NormalPriority:
      return Scheduler_NormalPriority;
    case LowPriority:
      return Scheduler_LowPriority;
    case IdlePriority:
      return Scheduler_IdlePriority;
    default:
      (function () {
        {
          {
            throw ReactError(Error('Unknown priority level.'));
          }
        }
      })();
  }
}

function runWithPriority$2(reactPriorityLevel, fn) {
  var priorityLevel = reactPriorityToSchedulerPriority(reactPriorityLevel);
  return Scheduler_runWithPriority(priorityLevel, fn);
}

function scheduleCallback(reactPriorityLevel, callback, options) {
  var priorityLevel = reactPriorityToSchedulerPriority(reactPriorityLevel);
  return Scheduler_scheduleCallback(priorityLevel, callback, options);
}

function scheduleSyncCallback(callback) {
  // Push this callback into an internal queue. We'll flush these either in
  // the next tick, or earlier if something calls `flushSyncCallbackQueue`.
  if (syncQueue === null) {
    syncQueue = [callback];
    // Flush the queue in the next tick, at the earliest.
    immediateQueueCallbackNode = Scheduler_scheduleCallback(Scheduler_ImmediatePriority, flushSyncCallbackQueueImpl);
  } else {
    // Push onto existing queue. Don't need to schedule a callback because
    // we already scheduled one when we created the queue.
    syncQueue.push(callback);
  }
  return fakeCallbackNode;
}

function cancelCallback(callbackNode) {
  if (callbackNode !== fakeCallbackNode) {
    Scheduler_cancelCallback(callbackNode);
  }
}

function flushSyncCallbackQueue() {
  if (immediateQueueCallbackNode !== null) {
    Scheduler_cancelCallback(immediateQueueCallbackNode);
  }
  flushSyncCallbackQueueImpl();
}

function flushSyncCallbackQueueImpl() {
  if (!isFlushingSyncQueue && syncQueue !== null) {
    // Prevent re-entrancy.
    isFlushingSyncQueue = true;
    var i = 0;
    try {
      var _isSync = true;
      var queue = syncQueue;
      runWithPriority$2(ImmediatePriority, function () {
        for (; i < queue.length; i++) {
          var callback = queue[i];
          do {
            callback = callback(_isSync);
          } while (callback !== null);
        }
      });
      syncQueue = null;
    } catch (error) {
      // If something throws, leave the remaining callbacks on the queue.
      if (syncQueue !== null) {
        syncQueue = syncQueue.slice(i + 1);
      }
      // Resume flushing in the next tick
      Scheduler_scheduleCallback(Scheduler_ImmediatePriority, flushSyncCallbackQueue);
      throw error;
    } finally {
      isFlushingSyncQueue = false;
    }
  }
}

var NoMode = 0;
var StrictMode = 1;
// TODO: Remove BatchedMode and ConcurrentMode by reading from the root
// tag instead
var BatchedMode = 2;
var ConcurrentMode = 4;
var ProfileMode = 8;

// Max 31 bit integer. The max integer size in V8 for 32-bit systems.
// Math.pow(2, 30) - 1
// 0b111111111111111111111111111111
var MAX_SIGNED_31_BIT_INT = 1073741823;

var NoWork = 0;
var Never = 1;
var Sync = MAX_SIGNED_31_BIT_INT;
var Batched = Sync - 1;

var UNIT_SIZE = 10;
var MAGIC_NUMBER_OFFSET = Batched - 1;

// 1 unit of expiration time represents 10ms.
function msToExpirationTime(ms) {
  // Always add an offset so that we don't clash with the magic number for NoWork.
  return MAGIC_NUMBER_OFFSET - (ms / UNIT_SIZE | 0);
}

function expirationTimeToMs(expirationTime) {
  return (MAGIC_NUMBER_OFFSET - expirationTime) * UNIT_SIZE;
}

function ceiling(num, precision) {
  return ((num / precision | 0) + 1) * precision;
}

function computeExpirationBucket(currentTime, expirationInMs, bucketSizeMs) {
  return MAGIC_NUMBER_OFFSET - ceiling(MAGIC_NUMBER_OFFSET - currentTime + expirationInMs / UNIT_SIZE, bucketSizeMs / UNIT_SIZE);
}

// TODO: This corresponds to Scheduler's NormalPriority, not LowPriority. Update
// the names to reflect.
var LOW_PRIORITY_EXPIRATION = 5000;
var LOW_PRIORITY_BATCH_SIZE = 250;

function computeAsyncExpiration(currentTime) {
  return computeExpirationBucket(currentTime, LOW_PRIORITY_EXPIRATION, LOW_PRIORITY_BATCH_SIZE);
}

function computeSuspenseExpiration(currentTime, timeoutMs) {
  // TODO: Should we warn if timeoutMs is lower than the normal pri expiration time?
  return computeExpirationBucket(currentTime, timeoutMs, LOW_PRIORITY_BATCH_SIZE);
}

// We intentionally set a higher expiration time for interactive updates in
// dev than in production.
//
// If the main thread is being blocked so long that you hit the expiration,
// it's a problem that could be solved with better scheduling.
//
// People will be more likely to notice this and fix it with the long
// expiration time in development.
//
// In production we opt for better UX at the risk of masking scheduling
// problems, by expiring fast.
var HIGH_PRIORITY_EXPIRATION = 500;
var HIGH_PRIORITY_BATCH_SIZE = 100;

function computeInteractiveExpiration(currentTime) {
  return computeExpirationBucket(currentTime, HIGH_PRIORITY_EXPIRATION, HIGH_PRIORITY_BATCH_SIZE);
}

function inferPriorityFromExpirationTime(currentTime, expirationTime) {
  if (expirationTime === Sync) {
    return ImmediatePriority;
  }
  if (expirationTime === Never) {
    return IdlePriority;
  }
  var msUntil = expirationTimeToMs(expirationTime) - expirationTimeToMs(currentTime);
  if (msUntil <= 0) {
    return ImmediatePriority;
  }
  if (msUntil <= HIGH_PRIORITY_EXPIRATION + HIGH_PRIORITY_BATCH_SIZE) {
    return UserBlockingPriority$2;
  }
  if (msUntil <= LOW_PRIORITY_EXPIRATION + LOW_PRIORITY_BATCH_SIZE) {
    return NormalPriority;
  }

  // TODO: Handle LowPriority

  // Assume anything lower has idle priority
  return IdlePriority;
}

/**
 * Forked from fbjs/warning:
 * https://github.com/facebook/fbjs/blob/e66ba20ad5be433eb54423f2b097d829324d9de6/packages/fbjs/src/__forks__/warning.js
 *
 * Only change is we use console.warn instead of console.error,
 * and do nothing when 'console' is not supported.
 * This really simplifies the code.
 * ---
 * Similar to invariant but only logs a warning if the condition is not met.
 * This can be used to log issues in development environments in critical
 * paths. Removing the logging code for production environments will keep the
 * same logic and follow the same code paths.
 */

var lowPriorityWarning = function () {};

{
  var printWarning = function (format) {
    for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
      args[_key - 1] = arguments[_key];
    }

    var argIndex = 0;
    var message = 'Warning: ' + format.replace(/%s/g, function () {
      return args[argIndex++];
    });
    if (typeof console !== 'undefined') {
      console.warn(message);
    }
    try {
      // --- Welcome to debugging React ---
      // This error was thrown as a convenience so that you can use this stack
      // to find the callsite that caused this warning to fire.
      throw new Error(message);
    } catch (x) {}
  };

  lowPriorityWarning = function (condition, format) {
    if (format === undefined) {
      throw new Error('`lowPriorityWarning(condition, format, ...args)` requires a warning ' + 'message argument');
    }
    if (!condition) {
      for (var _len2 = arguments.length, args = Array(_len2 > 2 ? _len2 - 2 : 0), _key2 = 2; _key2 < _len2; _key2++) {
        args[_key2 - 2] = arguments[_key2];
      }

      printWarning.apply(undefined, [format].concat(args));
    }
  };
}

var lowPriorityWarning$1 = lowPriorityWarning;

var ReactStrictModeWarnings = {
  recordUnsafeLifecycleWarnings: function (fiber, instance) {},
  flushPendingUnsafeLifecycleWarnings: function () {},
  recordLegacyContextWarning: function (fiber, instance) {},
  flushLegacyContextWarning: function () {},
  discardPendingWarnings: function () {}
};

{
  var findStrictRoot = function (fiber) {
    var maybeStrictRoot = null;

    var node = fiber;
    while (node !== null) {
      if (node.mode & StrictMode) {
        maybeStrictRoot = node;
      }
      node = node.return;
    }

    return maybeStrictRoot;
  };

  var setToSortedString = function (set) {
    var array = [];
    set.forEach(function (value) {
      array.push(value);
    });
    return array.sort().join(', ');
  };

  var pendingComponentWillMountWarnings = [];
  var pendingUNSAFE_ComponentWillMountWarnings = [];
  var pendingComponentWillReceivePropsWarnings = [];
  var pendingUNSAFE_ComponentWillReceivePropsWarnings = [];
  var pendingComponentWillUpdateWarnings = [];
  var pendingUNSAFE_ComponentWillUpdateWarnings = [];

  // Tracks components we have already warned about.
  var didWarnAboutUnsafeLifecycles = new Set();

  ReactStrictModeWarnings.recordUnsafeLifecycleWarnings = function (fiber, instance) {
    // Dedup strategy: Warn once per component.
    if (didWarnAboutUnsafeLifecycles.has(fiber.type)) {
      return;
    }

    if (typeof instance.componentWillMount === 'function' &&
    // Don't warn about react-lifecycles-compat polyfilled components.
    instance.componentWillMount.__suppressDeprecationWarning !== true) {
      pendingComponentWillMountWarnings.push(fiber);
    }

    if (fiber.mode & StrictMode && typeof instance.UNSAFE_componentWillMount === 'function') {
      pendingUNSAFE_ComponentWillMountWarnings.push(fiber);
    }

    if (typeof instance.componentWillReceiveProps === 'function' && instance.componentWillReceiveProps.__suppressDeprecationWarning !== true) {
      pendingComponentWillReceivePropsWarnings.push(fiber);
    }

    if (fiber.mode & StrictMode && typeof instance.UNSAFE_componentWillReceiveProps === 'function') {
      pendingUNSAFE_ComponentWillReceivePropsWarnings.push(fiber);
    }

    if (typeof instance.componentWillUpdate === 'function' && instance.componentWillUpdate.__suppressDeprecationWarning !== true) {
      pendingComponentWillUpdateWarnings.push(fiber);
    }

    if (fiber.mode & StrictMode && typeof instance.UNSAFE_componentWillUpdate === 'function') {
      pendingUNSAFE_ComponentWillUpdateWarnings.push(fiber);
    }
  };

  ReactStrictModeWarnings.flushPendingUnsafeLifecycleWarnings = function () {
    // We do an initial pass to gather component names
    var componentWillMountUniqueNames = new Set();
    if (pendingComponentWillMountWarnings.length > 0) {
      pendingComponentWillMountWarnings.forEach(function (fiber) {
        componentWillMountUniqueNames.add(getComponentName(fiber.type) || 'Component');
        didWarnAboutUnsafeLifecycles.add(fiber.type);
      });
      pendingComponentWillMountWarnings = [];
    }

    var UNSAFE_componentWillMountUniqueNames = new Set();
    if (pendingUNSAFE_ComponentWillMountWarnings.length > 0) {
      pendingUNSAFE_ComponentWillMountWarnings.forEach(function (fiber) {
        UNSAFE_componentWillMountUniqueNames.add(getComponentName(fiber.type) || 'Component');
        didWarnAboutUnsafeLifecycles.add(fiber.type);
      });
      pendingUNSAFE_ComponentWillMountWarnings = [];
    }

    var componentWillReceivePropsUniqueNames = new Set();
    if (pendingComponentWillReceivePropsWarnings.length > 0) {
      pendingComponentWillReceivePropsWarnings.forEach(function (fiber) {
        componentWillReceivePropsUniqueNames.add(getComponentName(fiber.type) || 'Component');
        didWarnAboutUnsafeLifecycles.add(fiber.type);
      });

      pendingComponentWillReceivePropsWarnings = [];
    }

    var UNSAFE_componentWillReceivePropsUniqueNames = new Set();
    if (pendingUNSAFE_ComponentWillReceivePropsWarnings.length > 0) {
      pendingUNSAFE_ComponentWillReceivePropsWarnings.forEach(function (fiber) {
        UNSAFE_componentWillReceivePropsUniqueNames.add(getComponentName(fiber.type) || 'Component');
        didWarnAboutUnsafeLifecycles.add(fiber.type);
      });

      pendingUNSAFE_ComponentWillReceivePropsWarnings = [];
    }

    var componentWillUpdateUniqueNames = new Set();
    if (pendingComponentWillUpdateWarnings.length > 0) {
      pendingComponentWillUpdateWarnings.forEach(function (fiber) {
        componentWillUpdateUniqueNames.add(getComponentName(fiber.type) || 'Component');
        didWarnAboutUnsafeLifecycles.add(fiber.type);
      });

      pendingComponentWillUpdateWarnings = [];
    }

    var UNSAFE_componentWillUpdateUniqueNames = new Set();
    if (pendingUNSAFE_ComponentWillUpdateWarnings.length > 0) {
      pendingUNSAFE_ComponentWillUpdateWarnings.forEach(function (fiber) {
        UNSAFE_componentWillUpdateUniqueNames.add(getComponentName(fiber.type) || 'Component');
        didWarnAboutUnsafeLifecycles.add(fiber.type);
      });

      pendingUNSAFE_ComponentWillUpdateWarnings = [];
    }

    // Finally, we flush all the warnings
    // UNSAFE_ ones before the deprecated ones, since they'll be 'louder'
    if (UNSAFE_componentWillMountUniqueNames.size > 0) {
      var sortedNames = setToSortedString(UNSAFE_componentWillMountUniqueNames);
      warningWithoutStack$1(false, 'Using UNSAFE_componentWillMount in strict mode is not recommended and may indicate bugs in your code. ' + 'See https://fb.me/react-async-component-lifecycle-hooks for details.\n\n' + '* Move code with side effects to componentDidMount, and set initial state in the constructor.\n' + '\nPlease update the following components: %s', sortedNames);
    }

    if (UNSAFE_componentWillReceivePropsUniqueNames.size > 0) {
      var _sortedNames = setToSortedString(UNSAFE_componentWillReceivePropsUniqueNames);
      warningWithoutStack$1(false, 'Using UNSAFE_componentWillReceiveProps in strict mode is not recommended ' + 'and may indicate bugs in your code. ' + 'See https://fb.me/react-async-component-lifecycle-hooks for details.\n\n' + '* Move data fetching code or side effects to componentDidUpdate.\n' + "* If you're updating state whenever props change, " + 'refactor your code to use memoization techniques or move it to ' + 'static getDerivedStateFromProps. Learn more at: https://fb.me/react-derived-state\n' + '\nPlease update the following components: %s', _sortedNames);
    }

    if (UNSAFE_componentWillUpdateUniqueNames.size > 0) {
      var _sortedNames2 = setToSortedString(UNSAFE_componentWillUpdateUniqueNames);
      warningWithoutStack$1(false, 'Using UNSAFE_componentWillUpdate in strict mode is not recommended ' + 'and may indicate bugs in your code. ' + 'See https://fb.me/react-async-component-lifecycle-hooks for details.\n\n' + '* Move data fetching code or side effects to componentDidUpdate.\n' + '\nPlease update the following components: %s', _sortedNames2);
    }

    if (componentWillMountUniqueNames.size > 0) {
      var _sortedNames3 = setToSortedString(componentWillMountUniqueNames);

      lowPriorityWarning$1(false, 'componentWillMount has been renamed, and is not recommended for use. ' + 'See https://fb.me/react-async-component-lifecycle-hooks for details.\n\n' + '* Move code with side effects to componentDidMount, and set initial state in the constructor.\n' + '* Rename componentWillMount to UNSAFE_componentWillMount to suppress ' + 'this warning in non-strict mode. In React 17.x, only the UNSAFE_ name will work. ' + 'To rename all deprecated lifecycles to their new names, you can run ' + '`npx react-codemod rename-unsafe-lifecycles` in your project source folder.\n' + '\nPlease update the following components: %s', _sortedNames3);
    }

    if (componentWillReceivePropsUniqueNames.size > 0) {
      var _sortedNames4 = setToSortedString(componentWillReceivePropsUniqueNames);

      lowPriorityWarning$1(false, 'componentWillReceiveProps has been renamed, and is not recommended for use. ' + 'See https://fb.me/react-async-component-lifecycle-hooks for details.\n\n' + '* Move data fetching code or side effects to componentDidUpdate.\n' + "* If you're updating state whenever props change, refactor your " + 'code to use memoization techniques or move it to ' + 'static getDerivedStateFromProps. Learn more at: https://fb.me/react-derived-state\n' + '* Rename componentWillReceiveProps to UNSAFE_componentWillReceiveProps to suppress ' + 'this warning in non-strict mode. In React 17.x, only the UNSAFE_ name will work. ' + 'To rename all deprecated lifecycles to their new names, you can run ' + '`npx react-codemod rename-unsafe-lifecycles` in your project source folder.\n' + '\nPlease update the following components: %s', _sortedNames4);
    }

    if (componentWillUpdateUniqueNames.size > 0) {
      var _sortedNames5 = setToSortedString(componentWillUpdateUniqueNames);

      lowPriorityWarning$1(false, 'componentWillUpdate has been renamed, and is not recommended for use. ' + 'See https://fb.me/react-async-component-lifecycle-hooks for details.\n\n' + '* Move data fetching code or side effects to componentDidUpdate.\n' + '* Rename componentWillUpdate to UNSAFE_componentWillUpdate to suppress ' + 'this warning in non-strict mode. In React 17.x, only the UNSAFE_ name will work. ' + 'To rename all deprecated lifecycles to their new names, you can run ' + '`npx react-codemod rename-unsafe-lifecycles` in your project source folder.\n' + '\nPlease update the following components: %s', _sortedNames5);
    }
  };

  var pendingLegacyContextWarning = new Map();

  // Tracks components we have already warned about.
  var didWarnAboutLegacyContext = new Set();

  ReactStrictModeWarnings.recordLegacyContextWarning = function (fiber, instance) {
    var strictRoot = findStrictRoot(fiber);
    if (strictRoot === null) {
      warningWithoutStack$1(false, 'Expected to find a StrictMode component in a strict mode tree. ' + 'This error is likely caused by a bug in React. Please file an issue.');
      return;
    }

    // Dedup strategy: Warn once per component.
    if (didWarnAboutLegacyContext.has(fiber.type)) {
      return;
    }

    var warningsForRoot = pendingLegacyContextWarning.get(strictRoot);

    if (fiber.type.contextTypes != null || fiber.type.childContextTypes != null || instance !== null && typeof instance.getChildContext === 'function') {
      if (warningsForRoot === undefined) {
        warningsForRoot = [];
        pendingLegacyContextWarning.set(strictRoot, warningsForRoot);
      }
      warningsForRoot.push(fiber);
    }
  };

  ReactStrictModeWarnings.flushLegacyContextWarning = function () {
    pendingLegacyContextWarning.forEach(function (fiberArray, strictRoot) {
      var uniqueNames = new Set();
      fiberArray.forEach(function (fiber) {
        uniqueNames.add(getComponentName(fiber.type) || 'Component');
        didWarnAboutLegacyContext.add(fiber.type);
      });

      var sortedNames = setToSortedString(uniqueNames);
      var strictRootComponentStack = getStackByFiberInDevAndProd(strictRoot);

      warningWithoutStack$1(false, 'Legacy context API has been detected within a strict-mode tree: %s' + '\n\nThe old API will be supported in all 16.x releases, but applications ' + 'using it should migrate to the new version.' + '\n\nPlease update the following components: %s' + '\n\nLearn more about this warning here:' + '\nhttps://fb.me/react-legacy-context', strictRootComponentStack, sortedNames);
    });
  };

  ReactStrictModeWarnings.discardPendingWarnings = function () {
    pendingComponentWillMountWarnings = [];
    pendingUNSAFE_ComponentWillMountWarnings = [];
    pendingComponentWillReceivePropsWarnings = [];
    pendingUNSAFE_ComponentWillReceivePropsWarnings = [];
    pendingComponentWillUpdateWarnings = [];
    pendingUNSAFE_ComponentWillUpdateWarnings = [];
    pendingLegacyContextWarning = new Map();
  };
}

// Resolves type to a family.


// Used by React Refresh runtime through DevTools Global Hook.


var resolveFamily = null;
// $FlowFixMe Flow gets confused by a WeakSet feature check below.
var failedBoundaries = null;

var setRefreshHandler = function (handler) {
  {
    resolveFamily = handler;
  }
};

function resolveFunctionForHotReloading(type) {
  {
    if (resolveFamily === null) {
      // Hot reloading is disabled.
      return type;
    }
    var family = resolveFamily(type);
    if (family === undefined) {
      return type;
    }
    // Use the latest known implementation.
    return family.current;
  }
}

function resolveClassForHotReloading(type) {
  // No implementation differences.
  return resolveFunctionForHotReloading(type);
}

function resolveForwardRefForHotReloading(type) {
  {
    if (resolveFamily === null) {
      // Hot reloading is disabled.
      return type;
    }
    var family = resolveFamily(type);
    if (family === undefined) {
      // Check if we're dealing with a real forwardRef. Don't want to crash early.
      if (type !== null && type !== undefined && typeof type.render === 'function') {
        // ForwardRef is special because its resolved .type is an object,
        // but it's possible that we only have its inner render function in the map.
        // If that inner render function is different, we'll build a new forwardRef type.
        var currentRender = resolveFunctionForHotReloading(type.render);
        if (type.render !== currentRender) {
          var syntheticType = {
            $$typeof: REACT_FORWARD_REF_TYPE,
            render: currentRender
          };
          if (type.displayName !== undefined) {
            syntheticType.displayName = type.displayName;
          }
          return syntheticType;
        }
      }
      return type;
    }
    // Use the latest known implementation.
    return family.current;
  }
}

function isCompatibleFamilyForHotReloading(fiber, element) {
  {
    if (resolveFamily === null) {
      // Hot reloading is disabled.
      return false;
    }

    var prevType = fiber.elementType;
    var nextType = element.type;

    // If we got here, we know types aren't === equal.
    var needsCompareFamilies = false;

    var $$typeofNextType = typeof nextType === 'object' && nextType !== null ? nextType.$$typeof : null;

    switch (fiber.tag) {
      case ClassComponent:
        {
          if (typeof nextType === 'function') {
            needsCompareFamilies = true;
          }
          break;
        }
      case FunctionComponent:
        {
          if (typeof nextType === 'function') {
            needsCompareFamilies = true;
          } else if ($$typeofNextType === REACT_LAZY_TYPE) {
            // We don't know the inner type yet.
            // We're going to assume that the lazy inner type is stable,
            // and so it is sufficient to avoid reconciling it away.
            // We're not going to unwrap or actually use the new lazy type.
            needsCompareFamilies = true;
          }
          break;
        }
      case ForwardRef:
        {
          if ($$typeofNextType === REACT_FORWARD_REF_TYPE) {
            needsCompareFamilies = true;
          } else if ($$typeofNextType === REACT_LAZY_TYPE) {
            needsCompareFamilies = true;
          }
          break;
        }
      case MemoComponent:
      case SimpleMemoComponent:
        {
          if ($$typeofNextType === REACT_MEMO_TYPE) {
            // TODO: if it was but can no longer be simple,
            // we shouldn't set this.
            needsCompareFamilies = true;
          } else if ($$typeofNextType === REACT_LAZY_TYPE) {
            needsCompareFamilies = true;
          }
          break;
        }
      default:
        return false;
    }

    // Check if both types have a family and it's the same one.
    if (needsCompareFamilies) {
      // Note: memo() and forwardRef() we'll compare outer rather than inner type.
      // This means both of them need to be registered to preserve state.
      // If we unwrapped and compared the inner types for wrappers instead,
      // then we would risk falsely saying two separate memo(Foo)
      // calls are equivalent because they wrap the same Foo function.
      var prevFamily = resolveFamily(prevType);
      if (prevFamily !== undefined && prevFamily === resolveFamily(nextType)) {
        return true;
      }
    }
    return false;
  }
}

function markFailedErrorBoundaryForHotReloading(fiber) {
  {
    if (resolveFamily === null) {
      // Hot reloading is disabled.
      return;
    }
    if (typeof WeakSet !== 'function') {
      return;
    }
    if (failedBoundaries === null) {
      failedBoundaries = new WeakSet();
    }
    failedBoundaries.add(fiber);
  }
}

var scheduleRefresh = function (root, update) {
  {
    if (resolveFamily === null) {
      // Hot reloading is disabled.
      return;
    }
    var _staleFamilies = update.staleFamilies,
        _updatedFamilies = update.updatedFamilies;

    flushPassiveEffects();
    flushSync(function () {
      scheduleFibersWithFamiliesRecursively(root.current, _updatedFamilies, _staleFamilies);
    });
  }
};

var scheduleRoot = function (root, element) {
  {
    if (root.context !== emptyContextObject) {
      // Super edge case: root has a legacy _renderSubtree context
      // but we don't know the parentComponent so we can't pass it.
      // Just ignore. We'll delete this with _renderSubtree code path later.
      return;
    }
    flushPassiveEffects();
    updateContainerAtExpirationTime(element, root, null, Sync, null);
  }
};

function scheduleFibersWithFamiliesRecursively(fiber, updatedFamilies, staleFamilies) {
  {
    var alternate = fiber.alternate,
        child = fiber.child,
        sibling = fiber.sibling,
        tag = fiber.tag,
        type = fiber.type;


    var candidateType = null;
    switch (tag) {
      case FunctionComponent:
      case SimpleMemoComponent:
      case ClassComponent:
        candidateType = type;
        break;
      case ForwardRef:
        candidateType = type.render;
        break;
      default:
        break;
    }

    if (resolveFamily === null) {
      throw new Error('Expected resolveFamily to be set during hot reload.');
    }

    var needsRender = false;
    var needsRemount = false;
    if (candidateType !== null) {
      var family = resolveFamily(candidateType);
      if (family !== undefined) {
        if (staleFamilies.has(family)) {
          needsRemount = true;
        } else if (updatedFamilies.has(family)) {
          needsRender = true;
        }
      }
    }
    if (failedBoundaries !== null) {
      if (failedBoundaries.has(fiber) || alternate !== null && failedBoundaries.has(alternate)) {
        needsRemount = true;
      }
    }

    if (needsRemount) {
      fiber._debugNeedsRemount = true;
    }
    if (needsRemount || needsRender) {
      scheduleWork(fiber, Sync);
    }
    if (child !== null && !needsRemount) {
      scheduleFibersWithFamiliesRecursively(child, updatedFamilies, staleFamilies);
    }
    if (sibling !== null) {
      scheduleFibersWithFamiliesRecursively(sibling, updatedFamilies, staleFamilies);
    }
  }
}

var findHostInstancesForRefresh = function (root, families) {
  {
    var hostInstances = new Set();
    var types = new Set(families.map(function (family) {
      return family.current;
    }));
    findHostInstancesForMatchingFibersRecursively(root.current, types, hostInstances);
    return hostInstances;
  }
};

function findHostInstancesForMatchingFibersRecursively(fiber, types, hostInstances) {
  {
    var child = fiber.child,
        sibling = fiber.sibling,
        tag = fiber.tag,
        type = fiber.type;


    var candidateType = null;
    switch (tag) {
      case FunctionComponent:
      case SimpleMemoComponent:
      case ClassComponent:
        candidateType = type;
        break;
      case ForwardRef:
        candidateType = type.render;
        break;
      default:
        break;
    }

    var didMatch = false;
    if (candidateType !== null) {
      if (types.has(candidateType)) {
        didMatch = true;
      }
    }

    if (didMatch) {
      // We have a match. This only drills down to the closest host components.
      // There's no need to search deeper because for the purpose of giving
      // visual feedback, "flashing" outermost parent rectangles is sufficient.
      findHostInstancesForFiberShallowly(fiber, hostInstances);
    } else {
      // If there's no match, maybe there will be one further down in the child tree.
      if (child !== null) {
        findHostInstancesForMatchingFibersRecursively(child, types, hostInstances);
      }
    }

    if (sibling !== null) {
      findHostInstancesForMatchingFibersRecursively(sibling, types, hostInstances);
    }
  }
}

function findHostInstancesForFiberShallowly(fiber, hostInstances) {
  {
    var foundHostInstances = findChildHostInstancesForFiberShallowly(fiber, hostInstances);
    if (foundHostInstances) {
      return;
    }
    // If we didn't find any host children, fallback to closest host parent.
    var node = fiber;
    while (true) {
      switch (node.tag) {
        case HostComponent:
          hostInstances.add(node.stateNode);
          return;
        case HostPortal:
          hostInstances.add(node.stateNode.containerInfo);
          return;
        case HostRoot:
          hostInstances.add(node.stateNode.containerInfo);
          return;
      }
      if (node.return === null) {
        throw new Error('Expected to reach root first.');
      }
      node = node.return;
    }
  }
}

function findChildHostInstancesForFiberShallowly(fiber, hostInstances) {
  {
    var node = fiber;
    var foundHostInstances = false;
    while (true) {
      if (node.tag === HostComponent) {
        // We got a match.
        foundHostInstances = true;
        hostInstances.add(node.stateNode);
        // There may still be more, so keep searching.
      } else if (node.child !== null) {
        node.child.return = node;
        node = node.child;
        continue;
      }
      if (node === fiber) {
        return foundHostInstances;
      }
      while (node.sibling === null) {
        if (node.return === null || node.return === fiber) {
          return foundHostInstances;
        }
        node = node.return;
      }
      node.sibling.return = node.return;
      node = node.sibling;
    }
  }
  return false;
}

function resolveDefaultProps(Component, baseProps) {
  if (Component && Component.defaultProps) {
    // Resolve default props. Taken from ReactElement
    var props = _assign({}, baseProps);
    var defaultProps = Component.defaultProps;
    for (var propName in defaultProps) {
      if (props[propName] === undefined) {
        props[propName] = defaultProps[propName];
      }
    }
    return props;
  }
  return baseProps;
}

function readLazyComponentType(lazyComponent) {
  var status = lazyComponent._status;
  var result = lazyComponent._result;
  switch (status) {
    case Resolved:
      {
        var Component = result;
        return Component;
      }
    case Rejected:
      {
        var error = result;
        throw error;
      }
    case Pending:
      {
        var thenable = result;
        throw thenable;
      }
    default:
      {
        lazyComponent._status = Pending;
        var ctor = lazyComponent._ctor;
        var _thenable = ctor();
        _thenable.then(function (moduleObject) {
          if (lazyComponent._status === Pending) {
            var defaultExport = moduleObject.default;
            {
              if (defaultExport === undefined) {
                warning$1(false, 'lazy: Expected the result of a dynamic import() call. ' + 'Instead received: %s\n\nYour code should look like: \n  ' + "const MyComponent = lazy(() => import('./MyComponent'))", moduleObject);
              }
            }
            lazyComponent._status = Resolved;
            lazyComponent._result = defaultExport;
          }
        }, function (error) {
          if (lazyComponent._status === Pending) {
            lazyComponent._status = Rejected;
            lazyComponent._result = error;
          }
        });
        // Handle synchronous thenables.
        switch (lazyComponent._status) {
          case Resolved:
            return lazyComponent._result;
          case Rejected:
            throw lazyComponent._result;
        }
        lazyComponent._result = _thenable;
        throw _thenable;
      }
  }
}

var valueCursor = createCursor(null);

var rendererSigil = void 0;
{
  // Use this to detect multiple renderers using the same context
  rendererSigil = {};
}

var currentlyRenderingFiber = null;
var lastContextDependency = null;
var lastContextWithAllBitsObserved = null;

var isDisallowedContextReadInDEV = false;

function resetContextDependencies() {
  // This is called right before React yields execution, to ensure `readContext`
  // cannot be called outside the render phase.
  currentlyRenderingFiber = null;
  lastContextDependency = null;
  lastContextWithAllBitsObserved = null;
  {
    isDisallowedContextReadInDEV = false;
  }
}

function enterDisallowedContextReadInDEV() {
  {
    isDisallowedContextReadInDEV = true;
  }
}

function exitDisallowedContextReadInDEV() {
  {
    isDisallowedContextReadInDEV = false;
  }
}

function pushProvider(providerFiber, nextValue) {
  var context = providerFiber.type._context;

  if (isPrimaryRenderer) {
    push(valueCursor, context._currentValue, providerFiber);

    context._currentValue = nextValue;
    {
      !(context._currentRenderer === undefined || context._currentRenderer === null || context._currentRenderer === rendererSigil) ? warningWithoutStack$1(false, 'Detected multiple renderers concurrently rendering the ' + 'same context provider. This is currently unsupported.') : void 0;
      context._currentRenderer = rendererSigil;
    }
  } else {
    push(valueCursor, context._currentValue2, providerFiber);

    context._currentValue2 = nextValue;
    {
      !(context._currentRenderer2 === undefined || context._currentRenderer2 === null || context._currentRenderer2 === rendererSigil) ? warningWithoutStack$1(false, 'Detected multiple renderers concurrently rendering the ' + 'same context provider. This is currently unsupported.') : void 0;
      context._currentRenderer2 = rendererSigil;
    }
  }
}

function popProvider(providerFiber) {
  var currentValue = valueCursor.current;

  pop(valueCursor, providerFiber);

  var context = providerFiber.type._context;
  if (isPrimaryRenderer) {
    context._currentValue = currentValue;
  } else {
    context._currentValue2 = currentValue;
  }
}

function calculateChangedBits(context, newValue, oldValue) {
  if (is(oldValue, newValue)) {
    // No change
    return 0;
  } else {
    var changedBits = typeof context._calculateChangedBits === 'function' ? context._calculateChangedBits(oldValue, newValue) : MAX_SIGNED_31_BIT_INT;

    {
      !((changedBits & MAX_SIGNED_31_BIT_INT) === changedBits) ? warning$1(false, 'calculateChangedBits: Expected the return value to be a ' + '31-bit integer. Instead received: %s', changedBits) : void 0;
    }
    return changedBits | 0;
  }
}

function scheduleWorkOnParentPath(parent, renderExpirationTime) {
  // Update the child expiration time of all the ancestors, including
  // the alternates.
  var node = parent;
  while (node !== null) {
    var alternate = node.alternate;
    if (node.childExpirationTime < renderExpirationTime) {
      node.childExpirationTime = renderExpirationTime;
      if (alternate !== null && alternate.childExpirationTime < renderExpirationTime) {
        alternate.childExpirationTime = renderExpirationTime;
      }
    } else if (alternate !== null && alternate.childExpirationTime < renderExpirationTime) {
      alternate.childExpirationTime = renderExpirationTime;
    } else {
      // Neither alternate was updated, which means the rest of the
      // ancestor path already has sufficient priority.
      break;
    }
    node = node.return;
  }
}

function propagateContextChange(workInProgress, context, changedBits, renderExpirationTime) {
  var fiber = workInProgress.child;
  if (fiber !== null) {
    // Set the return pointer of the child to the work-in-progress fiber.
    fiber.return = workInProgress;
  }
  while (fiber !== null) {
    var nextFiber = void 0;

    // Visit this fiber.
    var list = fiber.dependencies;
    if (list !== null) {
      nextFiber = fiber.child;

      var dependency = list.firstContext;
      while (dependency !== null) {
        // Check if the context matches.
        if (dependency.context === context && (dependency.observedBits & changedBits) !== 0) {
          // Match! Schedule an update on this fiber.

          if (fiber.tag === ClassComponent) {
            // Schedule a force update on the work-in-progress.
            var update = createUpdate(renderExpirationTime, null);
            update.tag = ForceUpdate;
            // TODO: Because we don't have a work-in-progress, this will add the
            // update to the current fiber, too, which means it will persist even if
            // this render is thrown away. Since it's a race condition, not sure it's
            // worth fixing.
            enqueueUpdate(fiber, update);
          }

          if (fiber.expirationTime < renderExpirationTime) {
            fiber.expirationTime = renderExpirationTime;
          }
          var alternate = fiber.alternate;
          if (alternate !== null && alternate.expirationTime < renderExpirationTime) {
            alternate.expirationTime = renderExpirationTime;
          }

          scheduleWorkOnParentPath(fiber.return, renderExpirationTime);

          // Mark the expiration time on the list, too.
          if (list.expirationTime < renderExpirationTime) {
            list.expirationTime = renderExpirationTime;
          }

          // Since we already found a match, we can stop traversing the
          // dependency list.
          break;
        }
        dependency = dependency.next;
      }
    } else if (fiber.tag === ContextProvider) {
      // Don't scan deeper if this is a matching provider
      nextFiber = fiber.type === workInProgress.type ? null : fiber.child;
    } else if (enableSuspenseServerRenderer && fiber.tag === DehydratedSuspenseComponent) {
      // If a dehydrated suspense component is in this subtree, we don't know
      // if it will have any context consumers in it. The best we can do is
      // mark it as having updates on its children.
      if (fiber.expirationTime < renderExpirationTime) {
        fiber.expirationTime = renderExpirationTime;
      }
      var _alternate = fiber.alternate;
      if (_alternate !== null && _alternate.expirationTime < renderExpirationTime) {
        _alternate.expirationTime = renderExpirationTime;
      }
      // This is intentionally passing this fiber as the parent
      // because we want to schedule this fiber as having work
      // on its children. We'll use the childExpirationTime on
      // this fiber to indicate that a context has changed.
      scheduleWorkOnParentPath(fiber, renderExpirationTime);
      nextFiber = fiber.sibling;
    } else {
      // Traverse down.
      nextFiber = fiber.child;
    }

    if (nextFiber !== null) {
      // Set the return pointer of the child to the work-in-progress fiber.
      nextFiber.return = fiber;
    } else {
      // No child. Traverse to next sibling.
      nextFiber = fiber;
      while (nextFiber !== null) {
        if (nextFiber === workInProgress) {
          // We're back to the root of this subtree. Exit.
          nextFiber = null;
          break;
        }
        var sibling = nextFiber.sibling;
        if (sibling !== null) {
          // Set the return pointer of the sibling to the work-in-progress fiber.
          sibling.return = nextFiber.return;
          nextFiber = sibling;
          break;
        }
        // No more siblings. Traverse up.
        nextFiber = nextFiber.return;
      }
    }
    fiber = nextFiber;
  }
}

function prepareToReadContext(workInProgress, renderExpirationTime) {
  currentlyRenderingFiber = workInProgress;
  lastContextDependency = null;
  lastContextWithAllBitsObserved = null;

  var dependencies = workInProgress.dependencies;
  if (dependencies !== null) {
    var firstContext = dependencies.firstContext;
    if (firstContext !== null) {
      if (dependencies.expirationTime >= renderExpirationTime) {
        // Context list has a pending update. Mark that this fiber performed work.
        markWorkInProgressReceivedUpdate();
      }
      // Reset the work-in-progress list
      dependencies.firstContext = null;
    }
  }
}

function readContext(context, observedBits) {
  {
    // This warning would fire if you read context inside a Hook like useMemo.
    // Unlike the class check below, it's not enforced in production for perf.
    !!isDisallowedContextReadInDEV ? warning$1(false, 'Context can only be read while React is rendering. ' + 'In classes, you can read it in the render method or getDerivedStateFromProps. ' + 'In function components, you can read it directly in the function body, but not ' + 'inside Hooks like useReducer() or useMemo().') : void 0;
  }

  if (lastContextWithAllBitsObserved === context) {
    // Nothing to do. We already observe everything in this context.
  } else if (observedBits === false || observedBits === 0) {
    // Do not observe any updates.
  } else {
    var resolvedObservedBits = void 0; // Avoid deopting on observable arguments or heterogeneous types.
    if (typeof observedBits !== 'number' || observedBits === MAX_SIGNED_31_BIT_INT) {
      // Observe all updates.
      lastContextWithAllBitsObserved = context;
      resolvedObservedBits = MAX_SIGNED_31_BIT_INT;
    } else {
      resolvedObservedBits = observedBits;
    }

    var contextItem = {
      context: context,
      observedBits: resolvedObservedBits,
      next: null
    };

    if (lastContextDependency === null) {
      (function () {
        if (!(currentlyRenderingFiber !== null)) {
          {
            throw ReactError(Error('Context can only be read while React is rendering. In classes, you can read it in the render method or getDerivedStateFromProps. In function components, you can read it directly in the function body, but not inside Hooks like useReducer() or useMemo().'));
          }
        }
      })();

      // This is the first dependency for this component. Create a new list.
      lastContextDependency = contextItem;
      currentlyRenderingFiber.dependencies = {
        expirationTime: NoWork,
        firstContext: contextItem,
        responders: null
      };
    } else {
      // Append a new context item.
      lastContextDependency = lastContextDependency.next = contextItem;
    }
  }
  return isPrimaryRenderer ? context._currentValue : context._currentValue2;
}

// UpdateQueue is a linked list of prioritized updates.
//
// Like fibers, update queues come in pairs: a current queue, which represents
// the visible state of the screen, and a work-in-progress queue, which can be
// mutated and processed asynchronously before it is committed — a form of
// double buffering. If a work-in-progress render is discarded before finishing,
// we create a new work-in-progress by cloning the current queue.
//
// Both queues share a persistent, singly-linked list structure. To schedule an
// update, we append it to the end of both queues. Each queue maintains a
// pointer to first update in the persistent list that hasn't been processed.
// The work-in-progress pointer always has a position equal to or greater than
// the current queue, since we always work on that one. The current queue's
// pointer is only updated during the commit phase, when we swap in the
// work-in-progress.
//
// For example:
//
//   Current pointer:           A - B - C - D - E - F
//   Work-in-progress pointer:              D - E - F
//                                          ^
//                                          The work-in-progress queue has
//                                          processed more updates than current.
//
// The reason we append to both queues is because otherwise we might drop
// updates without ever processing them. For example, if we only add updates to
// the work-in-progress queue, some updates could be lost whenever a work-in
// -progress render restarts by cloning from current. Similarly, if we only add
// updates to the current queue, the updates will be lost whenever an already
// in-progress queue commits and swaps with the current queue. However, by
// adding to both queues, we guarantee that the update will be part of the next
// work-in-progress. (And because the work-in-progress queue becomes the
// current queue once it commits, there's no danger of applying the same
// update twice.)
//
// Prioritization
// --------------
//
// Updates are not sorted by priority, but by insertion; new updates are always
// appended to the end of the list.
//
// The priority is still important, though. When processing the update queue
// during the render phase, only the updates with sufficient priority are
// included in the result. If we skip an update because it has insufficient
// priority, it remains in the queue to be processed later, during a lower
// priority render. Crucially, all updates subsequent to a skipped update also
// remain in the queue *regardless of their priority*. That means high priority
// updates are sometimes processed twice, at two separate priorities. We also
// keep track of a base state, that represents the state before the first
// update in the queue is applied.
//
// For example:
//
//   Given a base state of '', and the following queue of updates
//
//     A1 - B2 - C1 - D2
//
//   where the number indicates the priority, and the update is applied to the
//   previous state by appending a letter, React will process these updates as
//   two separate renders, one per distinct priority level:
//
//   First render, at priority 1:
//     Base state: ''
//     Updates: [A1, C1]
//     Result state: 'AC'
//
//   Second render, at priority 2:
//     Base state: 'A'            <-  The base state does not include C1,
//                                    because B2 was skipped.
//     Updates: [B2, C1, D2]      <-  C1 was rebased on top of B2
//     Result state: 'ABCD'
//
// Because we process updates in insertion order, and rebase high priority
// updates when preceding updates are skipped, the final result is deterministic
// regardless of priority. Intermediate state may vary according to system
// resources, but the final state is always the same.

var UpdateState = 0;
var ReplaceState = 1;
var ForceUpdate = 2;
var CaptureUpdate = 3;

// Global state that is reset at the beginning of calling `processUpdateQueue`.
// It should only be read right after calling `processUpdateQueue`, via
// `checkHasForceUpdateAfterProcessing`.
var hasForceUpdate = false;

var didWarnUpdateInsideUpdate = void 0;
var currentlyProcessingQueue = void 0;

{
  didWarnUpdateInsideUpdate = false;
  currentlyProcessingQueue = null;
  
}

function createUpdateQueue(baseState) {
  var queue = {
    baseState: baseState,
    firstUpdate: null,
    lastUpdate: null,
    firstCapturedUpdate: null,
    lastCapturedUpdate: null,
    firstEffect: null,
    lastEffect: null,
    firstCapturedEffect: null,
    lastCapturedEffect: null
  };
  return queue;
}

function cloneUpdateQueue(currentQueue) {
  var queue = {
    baseState: currentQueue.baseState,
    firstUpdate: currentQueue.firstUpdate,
    lastUpdate: currentQueue.lastUpdate,

    // TODO: With resuming, if we bail out and resuse the child tree, we should
    // keep these effects.
    firstCapturedUpdate: null,
    lastCapturedUpdate: null,

    firstEffect: null,
    lastEffect: null,

    firstCapturedEffect: null,
    lastCapturedEffect: null
  };
  return queue;
}

function createUpdate(expirationTime, suspenseConfig) {
  var update = {
    expirationTime: expirationTime,
    suspenseConfig: suspenseConfig,

    tag: UpdateState,
    payload: null,
    callback: null,

    next: null,
    nextEffect: null
  };
  {
    update.priority = getCurrentPriorityLevel();
  }
  return update;
}

function appendUpdateToQueue(queue, update) {
  // Append the update to the end of the list.
  if (queue.lastUpdate === null) {
    // Queue is empty
    queue.firstUpdate = queue.lastUpdate = update;
  } else {
    queue.lastUpdate.next = update;
    queue.lastUpdate = update;
  }
}

function enqueueUpdate(fiber, update) {
  // Update queues are created lazily.
  var alternate = fiber.alternate;
  var queue1 = void 0;
  var queue2 = void 0;
  if (alternate === null) {
    // There's only one fiber.
    queue1 = fiber.updateQueue;
    queue2 = null;
    if (queue1 === null) {
      queue1 = fiber.updateQueue = createUpdateQueue(fiber.memoizedState);
    }
  } else {
    // There are two owners.
    queue1 = fiber.updateQueue;
    queue2 = alternate.updateQueue;
    if (queue1 === null) {
      if (queue2 === null) {
        // Neither fiber has an update queue. Create new ones.
        queue1 = fiber.updateQueue = createUpdateQueue(fiber.memoizedState);
        queue2 = alternate.updateQueue = createUpdateQueue(alternate.memoizedState);
      } else {
        // Only one fiber has an update queue. Clone to create a new one.
        queue1 = fiber.updateQueue = cloneUpdateQueue(queue2);
      }
    } else {
      if (queue2 === null) {
        // Only one fiber has an update queue. Clone to create a new one.
        queue2 = alternate.updateQueue = cloneUpdateQueue(queue1);
      } else {
        // Both owners have an update queue.
      }
    }
  }
  if (queue2 === null || queue1 === queue2) {
    // There's only a single queue.
    appendUpdateToQueue(queue1, update);
  } else {
    // There are two queues. We need to append the update to both queues,
    // while accounting for the persistent structure of the list — we don't
    // want the same update to be added multiple times.
    if (queue1.lastUpdate === null || queue2.lastUpdate === null) {
      // One of the queues is not empty. We must add the update to both queues.
      appendUpdateToQueue(queue1, update);
      appendUpdateToQueue(queue2, update);
    } else {
      // Both queues are non-empty. The last update is the same in both lists,
      // because of structural sharing. So, only append to one of the lists.
      appendUpdateToQueue(queue1, update);
      // But we still need to update the `lastUpdate` pointer of queue2.
      queue2.lastUpdate = update;
    }
  }

  {
    if (fiber.tag === ClassComponent && (currentlyProcessingQueue === queue1 || queue2 !== null && currentlyProcessingQueue === queue2) && !didWarnUpdateInsideUpdate) {
      warningWithoutStack$1(false, 'An update (setState, replaceState, or forceUpdate) was scheduled ' + 'from inside an update function. Update functions should be pure, ' + 'with zero side-effects. Consider using componentDidUpdate or a ' + 'callback.');
      didWarnUpdateInsideUpdate = true;
    }
  }
}

function enqueueCapturedUpdate(workInProgress, update) {
  // Captured updates go into a separate list, and only on the work-in-
  // progress queue.
  var workInProgressQueue = workInProgress.updateQueue;
  if (workInProgressQueue === null) {
    workInProgressQueue = workInProgress.updateQueue = createUpdateQueue(workInProgress.memoizedState);
  } else {
    // TODO: I put this here rather than createWorkInProgress so that we don't
    // clone the queue unnecessarily. There's probably a better way to
    // structure this.
    workInProgressQueue = ensureWorkInProgressQueueIsAClone(workInProgress, workInProgressQueue);
  }

  // Append the update to the end of the list.
  if (workInProgressQueue.lastCapturedUpdate === null) {
    // This is the first render phase update
    workInProgressQueue.firstCapturedUpdate = workInProgressQueue.lastCapturedUpdate = update;
  } else {
    workInProgressQueue.lastCapturedUpdate.next = update;
    workInProgressQueue.lastCapturedUpdate = update;
  }
}

function ensureWorkInProgressQueueIsAClone(workInProgress, queue) {
  var current = workInProgress.alternate;
  if (current !== null) {
    // If the work-in-progress queue is equal to the current queue,
    // we need to clone it first.
    if (queue === current.updateQueue) {
      queue = workInProgress.updateQueue = cloneUpdateQueue(queue);
    }
  }
  return queue;
}

function getStateFromUpdate(workInProgress, queue, update, prevState, nextProps, instance) {
  switch (update.tag) {
    case ReplaceState:
      {
        var _payload = update.payload;
        if (typeof _payload === 'function') {
          // Updater function
          {
            enterDisallowedContextReadInDEV();
            if (debugRenderPhaseSideEffects || debugRenderPhaseSideEffectsForStrictMode && workInProgress.mode & StrictMode) {
              _payload.call(instance, prevState, nextProps);
            }
          }
          var nextState = _payload.call(instance, prevState, nextProps);
          {
            exitDisallowedContextReadInDEV();
          }
          return nextState;
        }
        // State object
        return _payload;
      }
    case CaptureUpdate:
      {
        workInProgress.effectTag = workInProgress.effectTag & ~ShouldCapture | DidCapture;
      }
    // Intentional fallthrough
    case UpdateState:
      {
        var _payload2 = update.payload;
        var partialState = void 0;
        if (typeof _payload2 === 'function') {
          // Updater function
          {
            enterDisallowedContextReadInDEV();
            if (debugRenderPhaseSideEffects || debugRenderPhaseSideEffectsForStrictMode && workInProgress.mode & StrictMode) {
              _payload2.call(instance, prevState, nextProps);
            }
          }
          partialState = _payload2.call(instance, prevState, nextProps);
          {
            exitDisallowedContextReadInDEV();
          }
        } else {
          // Partial state object
          partialState = _payload2;
        }
        if (partialState === null || partialState === undefined) {
          // Null and undefined are treated as no-ops.
          return prevState;
        }
        // Merge the partial state and the previous state.
        return _assign({}, prevState, partialState);
      }
    case ForceUpdate:
      {
        hasForceUpdate = true;
        return prevState;
      }
  }
  return prevState;
}

function processUpdateQueue(workInProgress, queue, props, instance, renderExpirationTime) {
  hasForceUpdate = false;

  queue = ensureWorkInProgressQueueIsAClone(workInProgress, queue);

  {
    currentlyProcessingQueue = queue;
  }

  // These values may change as we process the queue.
  var newBaseState = queue.baseState;
  var newFirstUpdate = null;
  var newExpirationTime = NoWork;

  // Iterate through the list of updates to compute the result.
  var update = queue.firstUpdate;
  var resultState = newBaseState;
  while (update !== null) {
    var updateExpirationTime = update.expirationTime;
    if (updateExpirationTime < renderExpirationTime) {
      // This update does not have sufficient priority. Skip it.
      if (newFirstUpdate === null) {
        // This is the first skipped update. It will be the first update in
        // the new list.
        newFirstUpdate = update;
        // Since this is the first update that was skipped, the current result
        // is the new base state.
        newBaseState = resultState;
      }
      // Since this update will remain in the list, update the remaining
      // expiration time.
      if (newExpirationTime < updateExpirationTime) {
        newExpirationTime = updateExpirationTime;
      }
    } else {
      // This update does have sufficient priority.

      // Mark the event time of this update as relevant to this render pass.
      // TODO: This should ideally use the true event time of this update rather than
      // its priority which is a derived and not reverseable value.
      // TODO: We should skip this update if it was already committed but currently
      // we have no way of detecting the difference between a committed and suspended
      // update here.
      markRenderEventTimeAndConfig(updateExpirationTime, update.suspenseConfig);

      // Process it and compute a new result.
      resultState = getStateFromUpdate(workInProgress, queue, update, resultState, props, instance);
      var _callback = update.callback;
      if (_callback !== null) {
        workInProgress.effectTag |= Callback;
        // Set this to null, in case it was mutated during an aborted render.
        update.nextEffect = null;
        if (queue.lastEffect === null) {
          queue.firstEffect = queue.lastEffect = update;
        } else {
          queue.lastEffect.nextEffect = update;
          queue.lastEffect = update;
        }
      }
    }
    // Continue to the next update.
    update = update.next;
  }

  // Separately, iterate though the list of captured updates.
  var newFirstCapturedUpdate = null;
  update = queue.firstCapturedUpdate;
  while (update !== null) {
    var _updateExpirationTime = update.expirationTime;
    if (_updateExpirationTime < renderExpirationTime) {
      // This update does not have sufficient priority. Skip it.
      if (newFirstCapturedUpdate === null) {
        // This is the first skipped captured update. It will be the first
        // update in the new list.
        newFirstCapturedUpdate = update;
        // If this is the first update that was skipped, the current result is
        // the new base state.
        if (newFirstUpdate === null) {
          newBaseState = resultState;
        }
      }
      // Since this update will remain in the list, update the remaining
      // expiration time.
      if (newExpirationTime < _updateExpirationTime) {
        newExpirationTime = _updateExpirationTime;
      }
    } else {
      // This update does have sufficient priority. Process it and compute
      // a new result.
      resultState = getStateFromUpdate(workInProgress, queue, update, resultState, props, instance);
      var _callback2 = update.callback;
      if (_callback2 !== null) {
        workInProgress.effectTag |= Callback;
        // Set this to null, in case it was mutated during an aborted render.
        update.nextEffect = null;
        if (queue.lastCapturedEffect === null) {
          queue.firstCapturedEffect = queue.lastCapturedEffect = update;
        } else {
          queue.lastCapturedEffect.nextEffect = update;
          queue.lastCapturedEffect = update;
        }
      }
    }
    update = update.next;
  }

  if (newFirstUpdate === null) {
    queue.lastUpdate = null;
  }
  if (newFirstCapturedUpdate === null) {
    queue.lastCapturedUpdate = null;
  } else {
    workInProgress.effectTag |= Callback;
  }
  if (newFirstUpdate === null && newFirstCapturedUpdate === null) {
    // We processed every update, without skipping. That means the new base
    // state is the same as the result state.
    newBaseState = resultState;
  }

  queue.baseState = newBaseState;
  queue.firstUpdate = newFirstUpdate;
  queue.firstCapturedUpdate = newFirstCapturedUpdate;

  // Set the remaining expiration time to be whatever is remaining in the queue.
  // This should be fine because the only two other things that contribute to
  // expiration time are props and context. We're already in the middle of the
  // begin phase by the time we start processing the queue, so we've already
  // dealt with the props. Context in components that specify
  // shouldComponentUpdate is tricky; but we'll have to account for
  // that regardless.
  workInProgress.expirationTime = newExpirationTime;
  workInProgress.memoizedState = resultState;

  {
    currentlyProcessingQueue = null;
  }
}

function callCallback(callback, context) {
  (function () {
    if (!(typeof callback === 'function')) {
      {
        throw ReactError(Error('Invalid argument passed as callback. Expected a function. Instead received: ' + callback));
      }
    }
  })();
  callback.call(context);
}

function resetHasForceUpdateBeforeProcessing() {
  hasForceUpdate = false;
}

function checkHasForceUpdateAfterProcessing() {
  return hasForceUpdate;
}

function commitUpdateQueue(finishedWork, finishedQueue, instance, renderExpirationTime) {
  // If the finished render included captured updates, and there are still
  // lower priority updates left over, we need to keep the captured updates
  // in the queue so that they are rebased and not dropped once we process the
  // queue again at the lower priority.
  if (finishedQueue.firstCapturedUpdate !== null) {
    // Join the captured update list to the end of the normal list.
    if (finishedQueue.lastUpdate !== null) {
      finishedQueue.lastUpdate.next = finishedQueue.firstCapturedUpdate;
      finishedQueue.lastUpdate = finishedQueue.lastCapturedUpdate;
    }
    // Clear the list of captured updates.
    finishedQueue.firstCapturedUpdate = finishedQueue.lastCapturedUpdate = null;
  }

  // Commit the effects
  commitUpdateEffects(finishedQueue.firstEffect, instance);
  finishedQueue.firstEffect = finishedQueue.lastEffect = null;

  commitUpdateEffects(finishedQueue.firstCapturedEffect, instance);
  finishedQueue.firstCapturedEffect = finishedQueue.lastCapturedEffect = null;
}

function commitUpdateEffects(effect, instance) {
  while (effect !== null) {
    var _callback3 = effect.callback;
    if (_callback3 !== null) {
      effect.callback = null;
      callCallback(_callback3, instance);
    }
    effect = effect.nextEffect;
  }
}

var ReactCurrentBatchConfig = ReactSharedInternals.ReactCurrentBatchConfig;


function requestCurrentSuspenseConfig() {
  return ReactCurrentBatchConfig.suspense;
}

var fakeInternalInstance = {};
var isArray$1 = Array.isArray;

// React.Component uses a shared frozen object by default.
// We'll use it to determine whether we need to initialize legacy refs.
var emptyRefsObject = new React.Component().refs;

var didWarnAboutStateAssignmentForComponent = void 0;
var didWarnAboutUninitializedState = void 0;
var didWarnAboutGetSnapshotBeforeUpdateWithoutDidUpdate = void 0;
var didWarnAboutLegacyLifecyclesAndDerivedState = void 0;
var didWarnAboutUndefinedDerivedState = void 0;
var warnOnUndefinedDerivedState = void 0;
var warnOnInvalidCallback$1 = void 0;
var didWarnAboutDirectlyAssigningPropsToState = void 0;
var didWarnAboutContextTypeAndContextTypes = void 0;
var didWarnAboutInvalidateContextType = void 0;

{
  didWarnAboutStateAssignmentForComponent = new Set();
  didWarnAboutUninitializedState = new Set();
  didWarnAboutGetSnapshotBeforeUpdateWithoutDidUpdate = new Set();
  didWarnAboutLegacyLifecyclesAndDerivedState = new Set();
  didWarnAboutDirectlyAssigningPropsToState = new Set();
  didWarnAboutUndefinedDerivedState = new Set();
  didWarnAboutContextTypeAndContextTypes = new Set();
  didWarnAboutInvalidateContextType = new Set();

  var didWarnOnInvalidCallback = new Set();

  warnOnInvalidCallback$1 = function (callback, callerName) {
    if (callback === null || typeof callback === 'function') {
      return;
    }
    var key = callerName + '_' + callback;
    if (!didWarnOnInvalidCallback.has(key)) {
      didWarnOnInvalidCallback.add(key);
      warningWithoutStack$1(false, '%s(...): Expected the last optional `callback` argument to be a ' + 'function. Instead received: %s.', callerName, callback);
    }
  };

  warnOnUndefinedDerivedState = function (type, partialState) {
    if (partialState === undefined) {
      var componentName = getComponentName(type) || 'Component';
      if (!didWarnAboutUndefinedDerivedState.has(componentName)) {
        didWarnAboutUndefinedDerivedState.add(componentName);
        warningWithoutStack$1(false, '%s.getDerivedStateFromProps(): A valid state object (or null) must be returned. ' + 'You have returned undefined.', componentName);
      }
    }
  };

  // This is so gross but it's at least non-critical and can be removed if
  // it causes problems. This is meant to give a nicer error message for
  // ReactDOM15.unstable_renderSubtreeIntoContainer(reactDOM16Component,
  // ...)) which otherwise throws a "_processChildContext is not a function"
  // exception.
  Object.defineProperty(fakeInternalInstance, '_processChildContext', {
    enumerable: false,
    value: function () {
      (function () {
        {
          {
            throw ReactError(Error('_processChildContext is not available in React 16+. This likely means you have multiple copies of React and are attempting to nest a React 15 tree inside a React 16 tree using unstable_renderSubtreeIntoContainer, which isn\'t supported. Try to make sure you have only one copy of React (and ideally, switch to ReactDOM.createPortal).'));
          }
        }
      })();
    }
  });
  Object.freeze(fakeInternalInstance);
}

function applyDerivedStateFromProps(workInProgress, ctor, getDerivedStateFromProps, nextProps) {
  var prevState = workInProgress.memoizedState;

  {
    if (debugRenderPhaseSideEffects || debugRenderPhaseSideEffectsForStrictMode && workInProgress.mode & StrictMode) {
      // Invoke the function an extra time to help detect side-effects.
      getDerivedStateFromProps(nextProps, prevState);
    }
  }

  var partialState = getDerivedStateFromProps(nextProps, prevState);

  {
    warnOnUndefinedDerivedState(ctor, partialState);
  }
  // Merge the partial state and the previous state.
  var memoizedState = partialState === null || partialState === undefined ? prevState : _assign({}, prevState, partialState);
  workInProgress.memoizedState = memoizedState;

  // Once the update queue is empty, persist the derived state onto the
  // base state.
  var updateQueue = workInProgress.updateQueue;
  if (updateQueue !== null && workInProgress.expirationTime === NoWork) {
    updateQueue.baseState = memoizedState;
  }
}

var classComponentUpdater = {
  isMounted: isMounted,
  enqueueSetState: function (inst, payload, callback) {
    var fiber = get(inst);
    var currentTime = requestCurrentTime();
    var suspenseConfig = requestCurrentSuspenseConfig();
    var expirationTime = computeExpirationForFiber(currentTime, fiber, suspenseConfig);

    var update = createUpdate(expirationTime, suspenseConfig);
    update.payload = payload;
    if (callback !== undefined && callback !== null) {
      {
        warnOnInvalidCallback$1(callback, 'setState');
      }
      update.callback = callback;
    }

    if (revertPassiveEffectsChange) {
      flushPassiveEffects();
    }
    enqueueUpdate(fiber, update);
    scheduleWork(fiber, expirationTime);
  },
  enqueueReplaceState: function (inst, payload, callback) {
    var fiber = get(inst);
    var currentTime = requestCurrentTime();
    var suspenseConfig = requestCurrentSuspenseConfig();
    var expirationTime = computeExpirationForFiber(currentTime, fiber, suspenseConfig);

    var update = createUpdate(expirationTime, suspenseConfig);
    update.tag = ReplaceState;
    update.payload = payload;

    if (callback !== undefined && callback !== null) {
      {
        warnOnInvalidCallback$1(callback, 'replaceState');
      }
      update.callback = callback;
    }

    if (revertPassiveEffectsChange) {
      flushPassiveEffects();
    }
    enqueueUpdate(fiber, update);
    scheduleWork(fiber, expirationTime);
  },
  enqueueForceUpdate: function (inst, callback) {
    var fiber = get(inst);
    var currentTime = requestCurrentTime();
    var suspenseConfig = requestCurrentSuspenseConfig();
    var expirationTime = computeExpirationForFiber(currentTime, fiber, suspenseConfig);

    var update = createUpdate(expirationTime, suspenseConfig);
    update.tag = ForceUpdate;

    if (callback !== undefined && callback !== null) {
      {
        warnOnInvalidCallback$1(callback, 'forceUpdate');
      }
      update.callback = callback;
    }

    if (revertPassiveEffectsChange) {
      flushPassiveEffects();
    }
    enqueueUpdate(fiber, update);
    scheduleWork(fiber, expirationTime);
  }
};

function checkShouldComponentUpdate(workInProgress, ctor, oldProps, newProps, oldState, newState, nextContext) {
  var instance = workInProgress.stateNode;
  if (typeof instance.shouldComponentUpdate === 'function') {
    startPhaseTimer(workInProgress, 'shouldComponentUpdate');
    var shouldUpdate = instance.shouldComponentUpdate(newProps, newState, nextContext);
    stopPhaseTimer();

    {
      !(shouldUpdate !== undefined) ? warningWithoutStack$1(false, '%s.shouldComponentUpdate(): Returned undefined instead of a ' + 'boolean value. Make sure to return true or false.', getComponentName(ctor) || 'Component') : void 0;
    }

    return shouldUpdate;
  }

  if (ctor.prototype && ctor.prototype.isPureReactComponent) {
    return !shallowEqual(oldProps, newProps) || !shallowEqual(oldState, newState);
  }

  return true;
}

function checkClassInstance(workInProgress, ctor, newProps) {
  var instance = workInProgress.stateNode;
  {
    var name = getComponentName(ctor) || 'Component';
    var renderPresent = instance.render;

    if (!renderPresent) {
      if (ctor.prototype && typeof ctor.prototype.render === 'function') {
        warningWithoutStack$1(false, '%s(...): No `render` method found on the returned component ' + 'instance: did you accidentally return an object from the constructor?', name);
      } else {
        warningWithoutStack$1(false, '%s(...): No `render` method found on the returned component ' + 'instance: you may have forgotten to define `render`.', name);
      }
    }

    var noGetInitialStateOnES6 = !instance.getInitialState || instance.getInitialState.isReactClassApproved || instance.state;
    !noGetInitialStateOnES6 ? warningWithoutStack$1(false, 'getInitialState was defined on %s, a plain JavaScript class. ' + 'This is only supported for classes created using React.createClass. ' + 'Did you mean to define a state property instead?', name) : void 0;
    var noGetDefaultPropsOnES6 = !instance.getDefaultProps || instance.getDefaultProps.isReactClassApproved;
    !noGetDefaultPropsOnES6 ? warningWithoutStack$1(false, 'getDefaultProps was defined on %s, a plain JavaScript class. ' + 'This is only supported for classes created using React.createClass. ' + 'Use a static property to define defaultProps instead.', name) : void 0;
    var noInstancePropTypes = !instance.propTypes;
    !noInstancePropTypes ? warningWithoutStack$1(false, 'propTypes was defined as an instance property on %s. Use a static ' + 'property to define propTypes instead.', name) : void 0;
    var noInstanceContextType = !instance.contextType;
    !noInstanceContextType ? warningWithoutStack$1(false, 'contextType was defined as an instance property on %s. Use a static ' + 'property to define contextType instead.', name) : void 0;

    if (disableLegacyContext) {
      if (ctor.childContextTypes) {
        warningWithoutStack$1(false, '%s uses the legacy childContextTypes API which is no longer supported. ' + 'Use React.createContext() instead.', name);
      }
      if (ctor.contextTypes) {
        warningWithoutStack$1(false, '%s uses the legacy contextTypes API which is no longer supported. ' + 'Use React.createContext() with static contextType instead.', name);
      }
    } else {
      var noInstanceContextTypes = !instance.contextTypes;
      !noInstanceContextTypes ? warningWithoutStack$1(false, 'contextTypes was defined as an instance property on %s. Use a static ' + 'property to define contextTypes instead.', name) : void 0;

      if (ctor.contextType && ctor.contextTypes && !didWarnAboutContextTypeAndContextTypes.has(ctor)) {
        didWarnAboutContextTypeAndContextTypes.add(ctor);
        warningWithoutStack$1(false, '%s declares both contextTypes and contextType static properties. ' + 'The legacy contextTypes property will be ignored.', name);
      }
    }

    var noComponentShouldUpdate = typeof instance.componentShouldUpdate !== 'function';
    !noComponentShouldUpdate ? warningWithoutStack$1(false, '%s has a method called ' + 'componentShouldUpdate(). Did you mean shouldComponentUpdate()? ' + 'The name is phrased as a question because the function is ' + 'expected to return a value.', name) : void 0;
    if (ctor.prototype && ctor.prototype.isPureReactComponent && typeof instance.shouldComponentUpdate !== 'undefined') {
      warningWithoutStack$1(false, '%s has a method called shouldComponentUpdate(). ' + 'shouldComponentUpdate should not be used when extending React.PureComponent. ' + 'Please extend React.Component if shouldComponentUpdate is used.', getComponentName(ctor) || 'A pure component');
    }
    var noComponentDidUnmount = typeof instance.componentDidUnmount !== 'function';
    !noComponentDidUnmount ? warningWithoutStack$1(false, '%s has a method called ' + 'componentDidUnmount(). But there is no such lifecycle method. ' + 'Did you mean componentWillUnmount()?', name) : void 0;
    var noComponentDidReceiveProps = typeof instance.componentDidReceiveProps !== 'function';
    !noComponentDidReceiveProps ? warningWithoutStack$1(false, '%s has a method called ' + 'componentDidReceiveProps(). But there is no such lifecycle method. ' + 'If you meant to update the state in response to changing props, ' + 'use componentWillReceiveProps(). If you meant to fetch data or ' + 'run side-effects or mutations after React has updated the UI, use componentDidUpdate().', name) : void 0;
    var noComponentWillRecieveProps = typeof instance.componentWillRecieveProps !== 'function';
    !noComponentWillRecieveProps ? warningWithoutStack$1(false, '%s has a method called ' + 'componentWillRecieveProps(). Did you mean componentWillReceiveProps()?', name) : void 0;
    var noUnsafeComponentWillRecieveProps = typeof instance.UNSAFE_componentWillRecieveProps !== 'function';
    !noUnsafeComponentWillRecieveProps ? warningWithoutStack$1(false, '%s has a method called ' + 'UNSAFE_componentWillRecieveProps(). Did you mean UNSAFE_componentWillReceiveProps()?', name) : void 0;
    var hasMutatedProps = instance.props !== newProps;
    !(instance.props === undefined || !hasMutatedProps) ? warningWithoutStack$1(false, '%s(...): When calling super() in `%s`, make sure to pass ' + "up the same props that your component's constructor was passed.", name, name) : void 0;
    var noInstanceDefaultProps = !instance.defaultProps;
    !noInstanceDefaultProps ? warningWithoutStack$1(false, 'Setting defaultProps as an instance property on %s is not supported and will be ignored.' + ' Instead, define defaultProps as a static property on %s.', name, name) : void 0;

    if (typeof instance.getSnapshotBeforeUpdate === 'function' && typeof instance.componentDidUpdate !== 'function' && !didWarnAboutGetSnapshotBeforeUpdateWithoutDidUpdate.has(ctor)) {
      didWarnAboutGetSnapshotBeforeUpdateWithoutDidUpdate.add(ctor);
      warningWithoutStack$1(false, '%s: getSnapshotBeforeUpdate() should be used with componentDidUpdate(). ' + 'This component defines getSnapshotBeforeUpdate() only.', getComponentName(ctor));
    }

    var noInstanceGetDerivedStateFromProps = typeof instance.getDerivedStateFromProps !== 'function';
    !noInstanceGetDerivedStateFromProps ? warningWithoutStack$1(false, '%s: getDerivedStateFromProps() is defined as an instance method ' + 'and will be ignored. Instead, declare it as a static method.', name) : void 0;
    var noInstanceGetDerivedStateFromCatch = typeof instance.getDerivedStateFromError !== 'function';
    !noInstanceGetDerivedStateFromCatch ? warningWithoutStack$1(false, '%s: getDerivedStateFromError() is defined as an instance method ' + 'and will be ignored. Instead, declare it as a static method.', name) : void 0;
    var noStaticGetSnapshotBeforeUpdate = typeof ctor.getSnapshotBeforeUpdate !== 'function';
    !noStaticGetSnapshotBeforeUpdate ? warningWithoutStack$1(false, '%s: getSnapshotBeforeUpdate() is defined as a static method ' + 'and will be ignored. Instead, declare it as an instance method.', name) : void 0;
    var _state = instance.state;
    if (_state && (typeof _state !== 'object' || isArray$1(_state))) {
      warningWithoutStack$1(false, '%s.state: must be set to an object or null', name);
    }
    if (typeof instance.getChildContext === 'function') {
      !(typeof ctor.childContextTypes === 'object') ? warningWithoutStack$1(false, '%s.getChildContext(): childContextTypes must be defined in order to ' + 'use getChildContext().', name) : void 0;
    }
  }
}

function adoptClassInstance(workInProgress, instance) {
  instance.updater = classComponentUpdater;
  workInProgress.stateNode = instance;
  // The instance needs access to the fiber so that it can schedule updates
  set(instance, workInProgress);
  {
    instance._reactInternalInstance = fakeInternalInstance;
  }
}

function constructClassInstance(workInProgress, ctor, props, renderExpirationTime) {
  var isLegacyContextConsumer = false;
  var unmaskedContext = emptyContextObject;
  var context = emptyContextObject;
  var contextType = ctor.contextType;

  {
    if ('contextType' in ctor) {
      var isValid =
      // Allow null for conditional declaration
      contextType === null || contextType !== undefined && contextType.$$typeof === REACT_CONTEXT_TYPE && contextType._context === undefined; // Not a <Context.Consumer>

      if (!isValid && !didWarnAboutInvalidateContextType.has(ctor)) {
        didWarnAboutInvalidateContextType.add(ctor);

        var addendum = '';
        if (contextType === undefined) {
          addendum = ' However, it is set to undefined. ' + 'This can be caused by a typo or by mixing up named and default imports. ' + 'This can also happen due to a circular dependency, so ' + 'try moving the createContext() call to a separate file.';
        } else if (typeof contextType !== 'object') {
          addendum = ' However, it is set to a ' + typeof contextType + '.';
        } else if (contextType.$$typeof === REACT_PROVIDER_TYPE) {
          addendum = ' Did you accidentally pass the Context.Provider instead?';
        } else if (contextType._context !== undefined) {
          // <Context.Consumer>
          addendum = ' Did you accidentally pass the Context.Consumer instead?';
        } else {
          addendum = ' However, it is set to an object with keys {' + Object.keys(contextType).join(', ') + '}.';
        }
        warningWithoutStack$1(false, '%s defines an invalid contextType. ' + 'contextType should point to the Context object returned by React.createContext().%s', getComponentName(ctor) || 'Component', addendum);
      }
    }
  }

  if (typeof contextType === 'object' && contextType !== null) {
    context = readContext(contextType);
  } else if (!disableLegacyContext) {
    unmaskedContext = getUnmaskedContext(workInProgress, ctor, true);
    var contextTypes = ctor.contextTypes;
    isLegacyContextConsumer = contextTypes !== null && contextTypes !== undefined;
    context = isLegacyContextConsumer ? getMaskedContext(workInProgress, unmaskedContext) : emptyContextObject;
  }

  // Instantiate twice to help detect side-effects.
  {
    if (debugRenderPhaseSideEffects || debugRenderPhaseSideEffectsForStrictMode && workInProgress.mode & StrictMode) {
      new ctor(props, context); // eslint-disable-line no-new
    }
  }

  var instance = new ctor(props, context);
  var state = workInProgress.memoizedState = instance.state !== null && instance.state !== undefined ? instance.state : null;
  adoptClassInstance(workInProgress, instance);

  {
    if (typeof ctor.getDerivedStateFromProps === 'function' && state === null) {
      var componentName = getComponentName(ctor) || 'Component';
      if (!didWarnAboutUninitializedState.has(componentName)) {
        didWarnAboutUninitializedState.add(componentName);
        warningWithoutStack$1(false, '`%s` uses `getDerivedStateFromProps` but its initial state is ' + '%s. This is not recommended. Instead, define the initial state by ' + 'assigning an object to `this.state` in the constructor of `%s`. ' + 'This ensures that `getDerivedStateFromProps` arguments have a consistent shape.', componentName, instance.state === null ? 'null' : 'undefined', componentName);
      }
    }

    // If new component APIs are defined, "unsafe" lifecycles won't be called.
    // Warn about these lifecycles if they are present.
    // Don't warn about react-lifecycles-compat polyfilled methods though.
    if (typeof ctor.getDerivedStateFromProps === 'function' || typeof instance.getSnapshotBeforeUpdate === 'function') {
      var foundWillMountName = null;
      var foundWillReceivePropsName = null;
      var foundWillUpdateName = null;
      if (typeof instance.componentWillMount === 'function' && instance.componentWillMount.__suppressDeprecationWarning !== true) {
        foundWillMountName = 'componentWillMount';
      } else if (typeof instance.UNSAFE_componentWillMount === 'function') {
        foundWillMountName = 'UNSAFE_componentWillMount';
      }
      if (typeof instance.componentWillReceiveProps === 'function' && instance.componentWillReceiveProps.__suppressDeprecationWarning !== true) {
        foundWillReceivePropsName = 'componentWillReceiveProps';
      } else if (typeof instance.UNSAFE_componentWillReceiveProps === 'function') {
        foundWillReceivePropsName = 'UNSAFE_componentWillReceiveProps';
      }
      if (typeof instance.componentWillUpdate === 'function' && instance.componentWillUpdate.__suppressDeprecationWarning !== true) {
        foundWillUpdateName = 'componentWillUpdate';
      } else if (typeof instance.UNSAFE_componentWillUpdate === 'function') {
        foundWillUpdateName = 'UNSAFE_componentWillUpdate';
      }
      if (foundWillMountName !== null || foundWillReceivePropsName !== null || foundWillUpdateName !== null) {
        var _componentName = getComponentName(ctor) || 'Component';
        var newApiName = typeof ctor.getDerivedStateFromProps === 'function' ? 'getDerivedStateFromProps()' : 'getSnapshotBeforeUpdate()';
        if (!didWarnAboutLegacyLifecyclesAndDerivedState.has(_componentName)) {
          didWarnAboutLegacyLifecyclesAndDerivedState.add(_componentName);
          warningWithoutStack$1(false, 'Unsafe legacy lifecycles will not be called for components using new component APIs.\n\n' + '%s uses %s but also contains the following legacy lifecycles:%s%s%s\n\n' + 'The above lifecycles should be removed. Learn more about this warning here:\n' + 'https://fb.me/react-async-component-lifecycle-hooks', _componentName, newApiName, foundWillMountName !== null ? '\n  ' + foundWillMountName : '', foundWillReceivePropsName !== null ? '\n  ' + foundWillReceivePropsName : '', foundWillUpdateName !== null ? '\n  ' + foundWillUpdateName : '');
        }
      }
    }
  }

  // Cache unmasked context so we can avoid recreating masked context unless necessary.
  // ReactFiberContext usually updates this cache but can't for newly-created instances.
  if (isLegacyContextConsumer) {
    cacheContext(workInProgress, unmaskedContext, context);
  }

  return instance;
}

function callComponentWillMount(workInProgress, instance) {
  startPhaseTimer(workInProgress, 'componentWillMount');
  var oldState = instance.state;

  if (typeof instance.componentWillMount === 'function') {
    instance.componentWillMount();
  }
  if (typeof instance.UNSAFE_componentWillMount === 'function') {
    instance.UNSAFE_componentWillMount();
  }

  stopPhaseTimer();

  if (oldState !== instance.state) {
    {
      warningWithoutStack$1(false, '%s.componentWillMount(): Assigning directly to this.state is ' + "deprecated (except inside a component's " + 'constructor). Use setState instead.', getComponentName(workInProgress.type) || 'Component');
    }
    classComponentUpdater.enqueueReplaceState(instance, instance.state, null);
  }
}

function callComponentWillReceiveProps(workInProgress, instance, newProps, nextContext) {
  var oldState = instance.state;
  startPhaseTimer(workInProgress, 'componentWillReceiveProps');
  if (typeof instance.componentWillReceiveProps === 'function') {
    instance.componentWillReceiveProps(newProps, nextContext);
  }
  if (typeof instance.UNSAFE_componentWillReceiveProps === 'function') {
    instance.UNSAFE_componentWillReceiveProps(newProps, nextContext);
  }
  stopPhaseTimer();

  if (instance.state !== oldState) {
    {
      var componentName = getComponentName(workInProgress.type) || 'Component';
      if (!didWarnAboutStateAssignmentForComponent.has(componentName)) {
        didWarnAboutStateAssignmentForComponent.add(componentName);
        warningWithoutStack$1(false, '%s.componentWillReceiveProps(): Assigning directly to ' + "this.state is deprecated (except inside a component's " + 'constructor). Use setState instead.', componentName);
      }
    }
    classComponentUpdater.enqueueReplaceState(instance, instance.state, null);
  }
}

// Invokes the mount life-cycles on a previously never rendered instance.
function mountClassInstance(workInProgress, ctor, newProps, renderExpirationTime) {
  {
    checkClassInstance(workInProgress, ctor, newProps);
  }

  var instance = workInProgress.stateNode;
  instance.props = newProps;
  instance.state = workInProgress.memoizedState;
  instance.refs = emptyRefsObject;

  var contextType = ctor.contextType;
  if (typeof contextType === 'object' && contextType !== null) {
    instance.context = readContext(contextType);
  } else if (disableLegacyContext) {
    instance.context = emptyContextObject;
  } else {
    var unmaskedContext = getUnmaskedContext(workInProgress, ctor, true);
    instance.context = getMaskedContext(workInProgress, unmaskedContext);
  }

  {
    if (instance.state === newProps) {
      var componentName = getComponentName(ctor) || 'Component';
      if (!didWarnAboutDirectlyAssigningPropsToState.has(componentName)) {
        didWarnAboutDirectlyAssigningPropsToState.add(componentName);
        warningWithoutStack$1(false, '%s: It is not recommended to assign props directly to state ' + "because updates to props won't be reflected in state. " + 'In most cases, it is better to use props directly.', componentName);
      }
    }

    if (workInProgress.mode & StrictMode) {
      ReactStrictModeWarnings.recordLegacyContextWarning(workInProgress, instance);
    }

    if (warnAboutDeprecatedLifecycles) {
      ReactStrictModeWarnings.recordUnsafeLifecycleWarnings(workInProgress, instance);
    }
  }

  var updateQueue = workInProgress.updateQueue;
  if (updateQueue !== null) {
    processUpdateQueue(workInProgress, updateQueue, newProps, instance, renderExpirationTime);
    instance.state = workInProgress.memoizedState;
  }

  var getDerivedStateFromProps = ctor.getDerivedStateFromProps;
  if (typeof getDerivedStateFromProps === 'function') {
    applyDerivedStateFromProps(workInProgress, ctor, getDerivedStateFromProps, newProps);
    instance.state = workInProgress.memoizedState;
  }

  // In order to support react-lifecycles-compat polyfilled components,
  // Unsafe lifecycles should not be invoked for components using the new APIs.
  if (typeof ctor.getDerivedStateFromProps !== 'function' && typeof instance.getSnapshotBeforeUpdate !== 'function' && (typeof instance.UNSAFE_componentWillMount === 'function' || typeof instance.componentWillMount === 'function')) {
    callComponentWillMount(workInProgress, instance);
    // If we had additional state updates during this life-cycle, let's
    // process them now.
    updateQueue = workInProgress.updateQueue;
    if (updateQueue !== null) {
      processUpdateQueue(workInProgress, updateQueue, newProps, instance, renderExpirationTime);
      instance.state = workInProgress.memoizedState;
    }
  }

  if (typeof instance.componentDidMount === 'function') {
    workInProgress.effectTag |= Update;
  }
}

function resumeMountClassInstance(workInProgress, ctor, newProps, renderExpirationTime) {
  var instance = workInProgress.stateNode;

  var oldProps = workInProgress.memoizedProps;
  instance.props = oldProps;

  var oldContext = instance.context;
  var contextType = ctor.contextType;
  var nextContext = emptyContextObject;
  if (typeof contextType === 'object' && contextType !== null) {
    nextContext = readContext(contextType);
  } else if (!disableLegacyContext) {
    var nextLegacyUnmaskedContext = getUnmaskedContext(workInProgress, ctor, true);
    nextContext = getMaskedContext(workInProgress, nextLegacyUnmaskedContext);
  }

  var getDerivedStateFromProps = ctor.getDerivedStateFromProps;
  var hasNewLifecycles = typeof getDerivedStateFromProps === 'function' || typeof instance.getSnapshotBeforeUpdate === 'function';

  // Note: During these life-cycles, instance.props/instance.state are what
  // ever the previously attempted to render - not the "current". However,
  // during componentDidUpdate we pass the "current" props.

  // In order to support react-lifecycles-compat polyfilled components,
  // Unsafe lifecycles should not be invoked for components using the new APIs.
  if (!hasNewLifecycles && (typeof instance.UNSAFE_componentWillReceiveProps === 'function' || typeof instance.componentWillReceiveProps === 'function')) {
    if (oldProps !== newProps || oldContext !== nextContext) {
      callComponentWillReceiveProps(workInProgress, instance, newProps, nextContext);
    }
  }

  resetHasForceUpdateBeforeProcessing();

  var oldState = workInProgress.memoizedState;
  var newState = instance.state = oldState;
  var updateQueue = workInProgress.updateQueue;
  if (updateQueue !== null) {
    processUpdateQueue(workInProgress, updateQueue, newProps, instance, renderExpirationTime);
    newState = workInProgress.memoizedState;
  }
  if (oldProps === newProps && oldState === newState && !hasContextChanged() && !checkHasForceUpdateAfterProcessing()) {
    // If an update was already in progress, we should schedule an Update
    // effect even though we're bailing out, so that cWU/cDU are called.
    if (typeof instance.componentDidMount === 'function') {
      workInProgress.effectTag |= Update;
    }
    return false;
  }

  if (typeof getDerivedStateFromProps === 'function') {
    applyDerivedStateFromProps(workInProgress, ctor, getDerivedStateFromProps, newProps);
    newState = workInProgress.memoizedState;
  }

  var shouldUpdate = checkHasForceUpdateAfterProcessing() || checkShouldComponentUpdate(workInProgress, ctor, oldProps, newProps, oldState, newState, nextContext);

  if (shouldUpdate) {
    // In order to support react-lifecycles-compat polyfilled components,
    // Unsafe lifecycles should not be invoked for components using the new APIs.
    if (!hasNewLifecycles && (typeof instance.UNSAFE_componentWillMount === 'function' || typeof instance.componentWillMount === 'function')) {
      startPhaseTimer(workInProgress, 'componentWillMount');
      if (typeof instance.componentWillMount === 'function') {
        instance.componentWillMount();
      }
      if (typeof instance.UNSAFE_componentWillMount === 'function') {
        instance.UNSAFE_componentWillMount();
      }
      stopPhaseTimer();
    }
    if (typeof instance.componentDidMount === 'function') {
      workInProgress.effectTag |= Update;
    }
  } else {
    // If an update was already in progress, we should schedule an Update
    // effect even though we're bailing out, so that cWU/cDU are called.
    if (typeof instance.componentDidMount === 'function') {
      workInProgress.effectTag |= Update;
    }

    // If shouldComponentUpdate returned false, we should still update the
    // memoized state to indicate that this work can be reused.
    workInProgress.memoizedProps = newProps;
    workInProgress.memoizedState = newState;
  }

  // Update the existing instance's state, props, and context pointers even
  // if shouldComponentUpdate returns false.
  instance.props = newProps;
  instance.state = newState;
  instance.context = nextContext;

  return shouldUpdate;
}

// Invokes the update life-cycles and returns false if it shouldn't rerender.
function updateClassInstance(current, workInProgress, ctor, newProps, renderExpirationTime) {
  var instance = workInProgress.stateNode;

  var oldProps = workInProgress.memoizedProps;
  instance.props = workInProgress.type === workInProgress.elementType ? oldProps : resolveDefaultProps(workInProgress.type, oldProps);

  var oldContext = instance.context;
  var contextType = ctor.contextType;
  var nextContext = emptyContextObject;
  if (typeof contextType === 'object' && contextType !== null) {
    nextContext = readContext(contextType);
  } else if (!disableLegacyContext) {
    var nextUnmaskedContext = getUnmaskedContext(workInProgress, ctor, true);
    nextContext = getMaskedContext(workInProgress, nextUnmaskedContext);
  }

  var getDerivedStateFromProps = ctor.getDerivedStateFromProps;
  var hasNewLifecycles = typeof getDerivedStateFromProps === 'function' || typeof instance.getSnapshotBeforeUpdate === 'function';

  // Note: During these life-cycles, instance.props/instance.state are what
  // ever the previously attempted to render - not the "current". However,
  // during componentDidUpdate we pass the "current" props.

  // In order to support react-lifecycles-compat polyfilled components,
  // Unsafe lifecycles should not be invoked for components using the new APIs.
  if (!hasNewLifecycles && (typeof instance.UNSAFE_componentWillReceiveProps === 'function' || typeof instance.componentWillReceiveProps === 'function')) {
    if (oldProps !== newProps || oldContext !== nextContext) {
      callComponentWillReceiveProps(workInProgress, instance, newProps, nextContext);
    }
  }

  resetHasForceUpdateBeforeProcessing();

  var oldState = workInProgress.memoizedState;
  var newState = instance.state = oldState;
  var updateQueue = workInProgress.updateQueue;
  if (updateQueue !== null) {
    processUpdateQueue(workInProgress, updateQueue, newProps, instance, renderExpirationTime);
    newState = workInProgress.memoizedState;
  }

  if (oldProps === newProps && oldState === newState && !hasContextChanged() && !checkHasForceUpdateAfterProcessing()) {
    // If an update was already in progress, we should schedule an Update
    // effect even though we're bailing out, so that cWU/cDU are called.
    if (typeof instance.componentDidUpdate === 'function') {
      if (oldProps !== current.memoizedProps || oldState !== current.memoizedState) {
        workInProgress.effectTag |= Update;
      }
    }
    if (typeof instance.getSnapshotBeforeUpdate === 'function') {
      if (oldProps !== current.memoizedProps || oldState !== current.memoizedState) {
        workInProgress.effectTag |= Snapshot;
      }
    }
    return false;
  }

  if (typeof getDerivedStateFromProps === 'function') {
    applyDerivedStateFromProps(workInProgress, ctor, getDerivedStateFromProps, newProps);
    newState = workInProgress.memoizedState;
  }

  var shouldUpdate = checkHasForceUpdateAfterProcessing() || checkShouldComponentUpdate(workInProgress, ctor, oldProps, newProps, oldState, newState, nextContext);

  if (shouldUpdate) {
    // In order to support react-lifecycles-compat polyfilled components,
    // Unsafe lifecycles should not be invoked for components using the new APIs.
    if (!hasNewLifecycles && (typeof instance.UNSAFE_componentWillUpdate === 'function' || typeof instance.componentWillUpdate === 'function')) {
      startPhaseTimer(workInProgress, 'componentWillUpdate');
      if (typeof instance.componentWillUpdate === 'function') {
        instance.componentWillUpdate(newProps, newState, nextContext);
      }
      if (typeof instance.UNSAFE_componentWillUpdate === 'function') {
        instance.UNSAFE_componentWillUpdate(newProps, newState, nextContext);
      }
      stopPhaseTimer();
    }
    if (typeof instance.componentDidUpdate === 'function') {
      workInProgress.effectTag |= Update;
    }
    if (typeof instance.getSnapshotBeforeUpdate === 'function') {
      workInProgress.effectTag |= Snapshot;
    }
  } else {
    // If an update was already in progress, we should schedule an Update
    // effect even though we're bailing out, so that cWU/cDU are called.
    if (typeof instance.componentDidUpdate === 'function') {
      if (oldProps !== current.memoizedProps || oldState !== current.memoizedState) {
        workInProgress.effectTag |= Update;
      }
    }
    if (typeof instance.getSnapshotBeforeUpdate === 'function') {
      if (oldProps !== current.memoizedProps || oldState !== current.memoizedState) {
        workInProgress.effectTag |= Snapshot;
      }
    }

    // If shouldComponentUpdate returned false, we should still update the
    // memoized props/state to indicate that this work can be reused.
    workInProgress.memoizedProps = newProps;
    workInProgress.memoizedState = newState;
  }

  // Update the existing instance's state, props, and context pointers even
  // if shouldComponentUpdate returns false.
  instance.props = newProps;
  instance.state = newState;
  instance.context = nextContext;

  return shouldUpdate;
}

var didWarnAboutMaps = void 0;
var didWarnAboutGenerators = void 0;
var didWarnAboutStringRefInStrictMode = void 0;
var ownerHasKeyUseWarning = void 0;
var ownerHasFunctionTypeWarning = void 0;
var warnForMissingKey = function (child) {};

{
  didWarnAboutMaps = false;
  didWarnAboutGenerators = false;
  didWarnAboutStringRefInStrictMode = {};

  /**
   * Warn if there's no key explicitly set on dynamic arrays of children or
   * object keys are not valid. This allows us to keep track of children between
   * updates.
   */
  ownerHasKeyUseWarning = {};
  ownerHasFunctionTypeWarning = {};

  warnForMissingKey = function (child) {
    if (child === null || typeof child !== 'object') {
      return;
    }
    if (!child._store || child._store.validated || child.key != null) {
      return;
    }
    (function () {
      if (!(typeof child._store === 'object')) {
        {
          throw ReactError(Error('React Component in warnForMissingKey should have a _store. This error is likely caused by a bug in React. Please file an issue.'));
        }
      }
    })();
    child._store.validated = true;

    var currentComponentErrorInfo = 'Each child in a list should have a unique ' + '"key" prop. See https://fb.me/react-warning-keys for ' + 'more information.' + getCurrentFiberStackInDev();
    if (ownerHasKeyUseWarning[currentComponentErrorInfo]) {
      return;
    }
    ownerHasKeyUseWarning[currentComponentErrorInfo] = true;

    warning$1(false, 'Each child in a list should have a unique ' + '"key" prop. See https://fb.me/react-warning-keys for ' + 'more information.');
  };
}

var isArray = Array.isArray;

function coerceRef(returnFiber, current$$1, element) {
  var mixedRef = element.ref;
  if (mixedRef !== null && typeof mixedRef !== 'function' && typeof mixedRef !== 'object') {
    {
      if (returnFiber.mode & StrictMode) {
        var componentName = getComponentName(returnFiber.type) || 'Component';
        if (!didWarnAboutStringRefInStrictMode[componentName]) {
          warningWithoutStack$1(false, 'A string ref, "%s", has been found within a strict mode tree. ' + 'String refs are a source of potential bugs and should be avoided. ' + 'We recommend using createRef() instead.' + '\n%s' + '\n\nLearn more about using refs safely here:' + '\nhttps://fb.me/react-strict-mode-string-ref', mixedRef, getStackByFiberInDevAndProd(returnFiber));
          didWarnAboutStringRefInStrictMode[componentName] = true;
        }
      }
    }

    if (element._owner) {
      var owner = element._owner;
      var inst = void 0;
      if (owner) {
        var ownerFiber = owner;
        (function () {
          if (!(ownerFiber.tag === ClassComponent)) {
            {
              throw ReactError(Error('Function components cannot have refs. Did you mean to use React.forwardRef()?'));
            }
          }
        })();
        inst = ownerFiber.stateNode;
      }
      (function () {
        if (!inst) {
          {
            throw ReactError(Error('Missing owner for string ref ' + mixedRef + '. This error is likely caused by a bug in React. Please file an issue.'));
          }
        }
      })();
      var stringRef = '' + mixedRef;
      // Check if previous string ref matches new string ref
      if (current$$1 !== null && current$$1.ref !== null && typeof current$$1.ref === 'function' && current$$1.ref._stringRef === stringRef) {
        return current$$1.ref;
      }
      var ref = function (value) {
        var refs = inst.refs;
        if (refs === emptyRefsObject) {
          // This is a lazy pooled frozen object, so we need to initialize.
          refs = inst.refs = {};
        }
        if (value === null) {
          delete refs[stringRef];
        } else {
          refs[stringRef] = value;
        }
      };
      ref._stringRef = stringRef;
      return ref;
    } else {
      (function () {
        if (!(typeof mixedRef === 'string')) {
          {
            throw ReactError(Error('Expected ref to be a function, a string, an object returned by React.createRef(), or null.'));
          }
        }
      })();
      (function () {
        if (!element._owner) {
          {
            throw ReactError(Error('Element ref was specified as a string (' + mixedRef + ') but no owner was set. This could happen for one of the following reasons:\n1. You may be adding a ref to a function component\n2. You may be adding a ref to a component that was not created inside a component\'s render method\n3. You have multiple copies of React loaded\nSee https://fb.me/react-refs-must-have-owner for more information.'));
          }
        }
      })();
    }
  }
  return mixedRef;
}

function throwOnInvalidObjectType(returnFiber, newChild) {
  if (returnFiber.type !== 'textarea') {
    var addendum = '';
    {
      addendum = ' If you meant to render a collection of children, use an array ' + 'instead.' + getCurrentFiberStackInDev();
    }
    (function () {
      {
        {
          throw ReactError(Error('Objects are not valid as a React child (found: ' + (Object.prototype.toString.call(newChild) === '[object Object]' ? 'object with keys {' + Object.keys(newChild).join(', ') + '}' : newChild) + ').' + addendum));
        }
      }
    })();
  }
}

function warnOnFunctionType() {
  var currentComponentErrorInfo = 'Functions are not valid as a React child. This may happen if ' + 'you return a Component instead of <Component /> from render. ' + 'Or maybe you meant to call this function rather than return it.' + getCurrentFiberStackInDev();

  if (ownerHasFunctionTypeWarning[currentComponentErrorInfo]) {
    return;
  }
  ownerHasFunctionTypeWarning[currentComponentErrorInfo] = true;

  warning$1(false, 'Functions are not valid as a React child. This may happen if ' + 'you return a Component instead of <Component /> from render. ' + 'Or maybe you meant to call this function rather than return it.');
}

// This wrapper function exists because I expect to clone the code in each path
// to be able to optimize each path individually by branching early. This needs
// a compiler or we can do it manually. Helpers that don't need this branching
// live outside of this function.
function ChildReconciler(shouldTrackSideEffects) {
  function deleteChild(returnFiber, childToDelete) {
    if (!shouldTrackSideEffects) {
      // Noop.
      return;
    }
    // Deletions are added in reversed order so we add it to the front.
    // At this point, the return fiber's effect list is empty except for
    // deletions, so we can just append the deletion to the list. The remaining
    // effects aren't added until the complete phase. Once we implement
    // resuming, this may not be true.
    var last = returnFiber.lastEffect;
    if (last !== null) {
      last.nextEffect = childToDelete;
      returnFiber.lastEffect = childToDelete;
    } else {
      returnFiber.firstEffect = returnFiber.lastEffect = childToDelete;
    }
    childToDelete.nextEffect = null;
    childToDelete.effectTag = Deletion;
  }

  function deleteRemainingChildren(returnFiber, currentFirstChild) {
    if (!shouldTrackSideEffects) {
      // Noop.
      return null;
    }

    // TODO: For the shouldClone case, this could be micro-optimized a bit by
    // assuming that after the first child we've already added everything.
    var childToDelete = currentFirstChild;
    while (childToDelete !== null) {
      deleteChild(returnFiber, childToDelete);
      childToDelete = childToDelete.sibling;
    }
    return null;
  }

  function mapRemainingChildren(returnFiber, currentFirstChild) {
    // Add the remaining children to a temporary map so that we can find them by
    // keys quickly. Implicit (null) keys get added to this set with their index
    var existingChildren = new Map();

    var existingChild = currentFirstChild;
    while (existingChild !== null) {
      if (existingChild.key !== null) {
        existingChildren.set(existingChild.key, existingChild);
      } else {
        existingChildren.set(existingChild.index, existingChild);
      }
      existingChild = existingChild.sibling;
    }
    return existingChildren;
  }

  function useFiber(fiber, pendingProps, expirationTime) {
    // We currently set sibling to null and index to 0 here because it is easy
    // to forget to do before returning it. E.g. for the single child case.
    var clone = createWorkInProgress(fiber, pendingProps, expirationTime);
    clone.index = 0;
    clone.sibling = null;
    return clone;
  }

  function placeChild(newFiber, lastPlacedIndex, newIndex) {
    newFiber.index = newIndex;
    if (!shouldTrackSideEffects) {
      // Noop.
      return lastPlacedIndex;
    }
    var current$$1 = newFiber.alternate;
    if (current$$1 !== null) {
      var oldIndex = current$$1.index;
      if (oldIndex < lastPlacedIndex) {
        // This is a move.
        newFiber.effectTag = Placement;
        return lastPlacedIndex;
      } else {
        // This item can stay in place.
        return oldIndex;
      }
    } else {
      // This is an insertion.
      newFiber.effectTag = Placement;
      return lastPlacedIndex;
    }
  }

  function placeSingleChild(newFiber) {
    // This is simpler for the single child case. We only need to do a
    // placement for inserting new children.
    if (shouldTrackSideEffects && newFiber.alternate === null) {
      newFiber.effectTag = Placement;
    }
    return newFiber;
  }

  function updateTextNode(returnFiber, current$$1, textContent, expirationTime) {
    if (current$$1 === null || current$$1.tag !== HostText) {
      // Insert
      var created = createFiberFromText(textContent, returnFiber.mode, expirationTime);
      created.return = returnFiber;
      return created;
    } else {
      // Update
      var existing = useFiber(current$$1, textContent, expirationTime);
      existing.return = returnFiber;
      return existing;
    }
  }

  function updateElement(returnFiber, current$$1, element, expirationTime) {
    if (current$$1 !== null && (current$$1.elementType === element.type || (
    // Keep this check inline so it only runs on the false path:
    isCompatibleFamilyForHotReloading(current$$1, element)))) {
      // Move based on index
      var existing = useFiber(current$$1, element.props, expirationTime);
      existing.ref = coerceRef(returnFiber, current$$1, element);
      existing.return = returnFiber;
      {
        existing._debugSource = element._source;
        existing._debugOwner = element._owner;
      }
      return existing;
    } else {
      // Insert
      var created = createFiberFromElement(element, returnFiber.mode, expirationTime);
      created.ref = coerceRef(returnFiber, current$$1, element);
      created.return = returnFiber;
      return created;
    }
  }

  function updatePortal(returnFiber, current$$1, portal, expirationTime) {
    if (current$$1 === null || current$$1.tag !== HostPortal || current$$1.stateNode.containerInfo !== portal.containerInfo || current$$1.stateNode.implementation !== portal.implementation) {
      // Insert
      var created = createFiberFromPortal(portal, returnFiber.mode, expirationTime);
      created.return = returnFiber;
      return created;
    } else {
      // Update
      var existing = useFiber(current$$1, portal.children || [], expirationTime);
      existing.return = returnFiber;
      return existing;
    }
  }

  function updateFragment(returnFiber, current$$1, fragment, expirationTime, key) {
    if (current$$1 === null || current$$1.tag !== Fragment) {
      // Insert
      var created = createFiberFromFragment(fragment, returnFiber.mode, expirationTime, key);
      created.return = returnFiber;
      return created;
    } else {
      // Update
      var existing = useFiber(current$$1, fragment, expirationTime);
      existing.return = returnFiber;
      return existing;
    }
  }

  function createChild(returnFiber, newChild, expirationTime) {
    if (typeof newChild === 'string' || typeof newChild === 'number') {
      // Text nodes don't have keys. If the previous node is implicitly keyed
      // we can continue to replace it without aborting even if it is not a text
      // node.
      var created = createFiberFromText('' + newChild, returnFiber.mode, expirationTime);
      created.return = returnFiber;
      return created;
    }

    if (typeof newChild === 'object' && newChild !== null) {
      switch (newChild.$$typeof) {
        case REACT_ELEMENT_TYPE:
          {
            var _created = createFiberFromElement(newChild, returnFiber.mode, expirationTime);
            _created.ref = coerceRef(returnFiber, null, newChild);
            _created.return = returnFiber;
            return _created;
          }
        case REACT_PORTAL_TYPE:
          {
            var _created2 = createFiberFromPortal(newChild, returnFiber.mode, expirationTime);
            _created2.return = returnFiber;
            return _created2;
          }
      }

      if (isArray(newChild) || getIteratorFn(newChild)) {
        var _created3 = createFiberFromFragment(newChild, returnFiber.mode, expirationTime, null);
        _created3.return = returnFiber;
        return _created3;
      }

      throwOnInvalidObjectType(returnFiber, newChild);
    }

    {
      if (typeof newChild === 'function') {
        warnOnFunctionType();
      }
    }

    return null;
  }

  function updateSlot(returnFiber, oldFiber, newChild, expirationTime) {
    // Update the fiber if the keys match, otherwise return null.

    var key = oldFiber !== null ? oldFiber.key : null;

    if (typeof newChild === 'string' || typeof newChild === 'number') {
      // Text nodes don't have keys. If the previous node is implicitly keyed
      // we can continue to replace it without aborting even if it is not a text
      // node.
      if (key !== null) {
        return null;
      }
      return updateTextNode(returnFiber, oldFiber, '' + newChild, expirationTime);
    }

    if (typeof newChild === 'object' && newChild !== null) {
      switch (newChild.$$typeof) {
        case REACT_ELEMENT_TYPE:
          {
            if (newChild.key === key) {
              if (newChild.type === REACT_FRAGMENT_TYPE) {
                return updateFragment(returnFiber, oldFiber, newChild.props.children, expirationTime, key);
              }
              return updateElement(returnFiber, oldFiber, newChild, expirationTime);
            } else {
              return null;
            }
          }
        case REACT_PORTAL_TYPE:
          {
            if (newChild.key === key) {
              return updatePortal(returnFiber, oldFiber, newChild, expirationTime);
            } else {
              return null;
            }
          }
      }

      if (isArray(newChild) || getIteratorFn(newChild)) {
        if (key !== null) {
          return null;
        }

        return updateFragment(returnFiber, oldFiber, newChild, expirationTime, null);
      }

      throwOnInvalidObjectType(returnFiber, newChild);
    }

    {
      if (typeof newChild === 'function') {
        warnOnFunctionType();
      }
    }

    return null;
  }

  function updateFromMap(existingChildren, returnFiber, newIdx, newChild, expirationTime) {
    if (typeof newChild === 'string' || typeof newChild === 'number') {
      // Text nodes don't have keys, so we neither have to check the old nor
      // new node for the key. If both are text nodes, they match.
      var matchedFiber = existingChildren.get(newIdx) || null;
      return updateTextNode(returnFiber, matchedFiber, '' + newChild, expirationTime);
    }

    if (typeof newChild === 'object' && newChild !== null) {
      switch (newChild.$$typeof) {
        case REACT_ELEMENT_TYPE:
          {
            var _matchedFiber = existingChildren.get(newChild.key === null ? newIdx : newChild.key) || null;
            if (newChild.type === REACT_FRAGMENT_TYPE) {
              return updateFragment(returnFiber, _matchedFiber, newChild.props.children, expirationTime, newChild.key);
            }
            return updateElement(returnFiber, _matchedFiber, newChild, expirationTime);
          }
        case REACT_PORTAL_TYPE:
          {
            var _matchedFiber2 = existingChildren.get(newChild.key === null ? newIdx : newChild.key) || null;
            return updatePortal(returnFiber, _matchedFiber2, newChild, expirationTime);
          }
      }

      if (isArray(newChild) || getIteratorFn(newChild)) {
        var _matchedFiber3 = existingChildren.get(newIdx) || null;
        return updateFragment(returnFiber, _matchedFiber3, newChild, expirationTime, null);
      }

      throwOnInvalidObjectType(returnFiber, newChild);
    }

    {
      if (typeof newChild === 'function') {
        warnOnFunctionType();
      }
    }

    return null;
  }

  /**
   * Warns if there is a duplicate or missing key
   */
  function warnOnInvalidKey(child, knownKeys) {
    {
      if (typeof child !== 'object' || child === null) {
        return knownKeys;
      }
      switch (child.$$typeof) {
        case REACT_ELEMENT_TYPE:
        case REACT_PORTAL_TYPE:
          warnForMissingKey(child);
          var key = child.key;
          if (typeof key !== 'string') {
            break;
          }
          if (knownKeys === null) {
            knownKeys = new Set();
            knownKeys.add(key);
            break;
          }
          if (!knownKeys.has(key)) {
            knownKeys.add(key);
            break;
          }
          warning$1(false, 'Encountered two children with the same key, `%s`. ' + 'Keys should be unique so that components maintain their identity ' + 'across updates. Non-unique keys may cause children to be ' + 'duplicated and/or omitted — the behavior is unsupported and ' + 'could change in a future version.', key);
          break;
        default:
          break;
      }
    }
    return knownKeys;
  }

  function reconcileChildrenArray(returnFiber, currentFirstChild, newChildren, expirationTime) {
    // This algorithm can't optimize by searching from both ends since we
    // don't have backpointers on fibers. I'm trying to see how far we can get
    // with that model. If it ends up not being worth the tradeoffs, we can
    // add it later.

    // Even with a two ended optimization, we'd want to optimize for the case
    // where there are few changes and brute force the comparison instead of
    // going for the Map. It'd like to explore hitting that path first in
    // forward-only mode and only go for the Map once we notice that we need
    // lots of look ahead. This doesn't handle reversal as well as two ended
    // search but that's unusual. Besides, for the two ended optimization to
    // work on Iterables, we'd need to copy the whole set.

    // In this first iteration, we'll just live with hitting the bad case
    // (adding everything to a Map) in for every insert/move.

    // If you change this code, also update reconcileChildrenIterator() which
    // uses the same algorithm.

    {
      // First, validate keys.
      var knownKeys = null;
      for (var i = 0; i < newChildren.length; i++) {
        var child = newChildren[i];
        knownKeys = warnOnInvalidKey(child, knownKeys);
      }
    }

    var resultingFirstChild = null;
    var previousNewFiber = null;

    var oldFiber = currentFirstChild;
    var lastPlacedIndex = 0;
    var newIdx = 0;
    var nextOldFiber = null;
    for (; oldFiber !== null && newIdx < newChildren.length; newIdx++) {
      if (oldFiber.index > newIdx) {
        nextOldFiber = oldFiber;
        oldFiber = null;
      } else {
        nextOldFiber = oldFiber.sibling;
      }
      var newFiber = updateSlot(returnFiber, oldFiber, newChildren[newIdx], expirationTime);
      if (newFiber === null) {
        // TODO: This breaks on empty slots like null children. That's
        // unfortunate because it triggers the slow path all the time. We need
        // a better way to communicate whether this was a miss or null,
        // boolean, undefined, etc.
        if (oldFiber === null) {
          oldFiber = nextOldFiber;
        }
        break;
      }
      if (shouldTrackSideEffects) {
        if (oldFiber && newFiber.alternate === null) {
          // We matched the slot, but we didn't reuse the existing fiber, so we
          // need to delete the existing child.
          deleteChild(returnFiber, oldFiber);
        }
      }
      lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx);
      if (previousNewFiber === null) {
        // TODO: Move out of the loop. This only happens for the first run.
        resultingFirstChild = newFiber;
      } else {
        // TODO: Defer siblings if we're not at the right index for this slot.
        // I.e. if we had null values before, then we want to defer this
        // for each null value. However, we also don't want to call updateSlot
        // with the previous one.
        previousNewFiber.sibling = newFiber;
      }
      previousNewFiber = newFiber;
      oldFiber = nextOldFiber;
    }

    if (newIdx === newChildren.length) {
      // We've reached the end of the new children. We can delete the rest.
      deleteRemainingChildren(returnFiber, oldFiber);
      return resultingFirstChild;
    }

    if (oldFiber === null) {
      // If we don't have any more existing children we can choose a fast path
      // since the rest will all be insertions.
      for (; newIdx < newChildren.length; newIdx++) {
        var _newFiber = createChild(returnFiber, newChildren[newIdx], expirationTime);
        if (_newFiber === null) {
          continue;
        }
        lastPlacedIndex = placeChild(_newFiber, lastPlacedIndex, newIdx);
        if (previousNewFiber === null) {
          // TODO: Move out of the loop. This only happens for the first run.
          resultingFirstChild = _newFiber;
        } else {
          previousNewFiber.sibling = _newFiber;
        }
        previousNewFiber = _newFiber;
      }
      return resultingFirstChild;
    }

    // Add all children to a key map for quick lookups.
    var existingChildren = mapRemainingChildren(returnFiber, oldFiber);

    // Keep scanning and use the map to restore deleted items as moves.
    for (; newIdx < newChildren.length; newIdx++) {
      var _newFiber2 = updateFromMap(existingChildren, returnFiber, newIdx, newChildren[newIdx], expirationTime);
      if (_newFiber2 !== null) {
        if (shouldTrackSideEffects) {
          if (_newFiber2.alternate !== null) {
            // The new fiber is a work in progress, but if there exists a
            // current, that means that we reused the fiber. We need to delete
            // it from the child list so that we don't add it to the deletion
            // list.
            existingChildren.delete(_newFiber2.key === null ? newIdx : _newFiber2.key);
          }
        }
        lastPlacedIndex = placeChild(_newFiber2, lastPlacedIndex, newIdx);
        if (previousNewFiber === null) {
          resultingFirstChild = _newFiber2;
        } else {
          previousNewFiber.sibling = _newFiber2;
        }
        previousNewFiber = _newFiber2;
      }
    }

    if (shouldTrackSideEffects) {
      // Any existing children that weren't consumed above were deleted. We need
      // to add them to the deletion list.
      existingChildren.forEach(function (child) {
        return deleteChild(returnFiber, child);
      });
    }

    return resultingFirstChild;
  }

  function reconcileChildrenIterator(returnFiber, currentFirstChild, newChildrenIterable, expirationTime) {
    // This is the same implementation as reconcileChildrenArray(),
    // but using the iterator instead.

    var iteratorFn = getIteratorFn(newChildrenIterable);
    (function () {
      if (!(typeof iteratorFn === 'function')) {
        {
          throw ReactError(Error('An object is not an iterable. This error is likely caused by a bug in React. Please file an issue.'));
        }
      }
    })();

    {
      // We don't support rendering Generators because it's a mutation.
      // See https://github.com/facebook/react/issues/12995
      if (typeof Symbol === 'function' &&
      // $FlowFixMe Flow doesn't know about toStringTag
      newChildrenIterable[Symbol.toStringTag] === 'Generator') {
        !didWarnAboutGenerators ? warning$1(false, 'Using Generators as children is unsupported and will likely yield ' + 'unexpected results because enumerating a generator mutates it. ' + 'You may convert it to an array with `Array.from()` or the ' + '`[...spread]` operator before rendering. Keep in mind ' + 'you might need to polyfill these features for older browsers.') : void 0;
        didWarnAboutGenerators = true;
      }

      // Warn about using Maps as children
      if (newChildrenIterable.entries === iteratorFn) {
        !didWarnAboutMaps ? warning$1(false, 'Using Maps as children is unsupported and will likely yield ' + 'unexpected results. Convert it to a sequence/iterable of keyed ' + 'ReactElements instead.') : void 0;
        didWarnAboutMaps = true;
      }

      // First, validate keys.
      // We'll get a different iterator later for the main pass.
      var _newChildren = iteratorFn.call(newChildrenIterable);
      if (_newChildren) {
        var knownKeys = null;
        var _step = _newChildren.next();
        for (; !_step.done; _step = _newChildren.next()) {
          var child = _step.value;
          knownKeys = warnOnInvalidKey(child, knownKeys);
        }
      }
    }

    var newChildren = iteratorFn.call(newChildrenIterable);
    (function () {
      if (!(newChildren != null)) {
        {
          throw ReactError(Error('An iterable object provided no iterator.'));
        }
      }
    })();

    var resultingFirstChild = null;
    var previousNewFiber = null;

    var oldFiber = currentFirstChild;
    var lastPlacedIndex = 0;
    var newIdx = 0;
    var nextOldFiber = null;

    var step = newChildren.next();
    for (; oldFiber !== null && !step.done; newIdx++, step = newChildren.next()) {
      if (oldFiber.index > newIdx) {
        nextOldFiber = oldFiber;
        oldFiber = null;
      } else {
        nextOldFiber = oldFiber.sibling;
      }
      var newFiber = updateSlot(returnFiber, oldFiber, step.value, expirationTime);
      if (newFiber === null) {
        // TODO: This breaks on empty slots like null children. That's
        // unfortunate because it triggers the slow path all the time. We need
        // a better way to communicate whether this was a miss or null,
        // boolean, undefined, etc.
        if (oldFiber === null) {
          oldFiber = nextOldFiber;
        }
        break;
      }
      if (shouldTrackSideEffects) {
        if (oldFiber && newFiber.alternate === null) {
          // We matched the slot, but we didn't reuse the existing fiber, so we
          // need to delete the existing child.
          deleteChild(returnFiber, oldFiber);
        }
      }
      lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx);
      if (previousNewFiber === null) {
        // TODO: Move out of the loop. This only happens for the first run.
        resultingFirstChild = newFiber;
      } else {
        // TODO: Defer siblings if we're not at the right index for this slot.
        // I.e. if we had null values before, then we want to defer this
        // for each null value. However, we also don't want to call updateSlot
        // with the previous one.
        previousNewFiber.sibling = newFiber;
      }
      previousNewFiber = newFiber;
      oldFiber = nextOldFiber;
    }

    if (step.done) {
      // We've reached the end of the new children. We can delete the rest.
      deleteRemainingChildren(returnFiber, oldFiber);
      return resultingFirstChild;
    }

    if (oldFiber === null) {
      // If we don't have any more existing children we can choose a fast path
      // since the rest will all be insertions.
      for (; !step.done; newIdx++, step = newChildren.next()) {
        var _newFiber3 = createChild(returnFiber, step.value, expirationTime);
        if (_newFiber3 === null) {
          continue;
        }
        lastPlacedIndex = placeChild(_newFiber3, lastPlacedIndex, newIdx);
        if (previousNewFiber === null) {
          // TODO: Move out of the loop. This only happens for the first run.
          resultingFirstChild = _newFiber3;
        } else {
          previousNewFiber.sibling = _newFiber3;
        }
        previousNewFiber = _newFiber3;
      }
      return resultingFirstChild;
    }

    // Add all children to a key map for quick lookups.
    var existingChildren = mapRemainingChildren(returnFiber, oldFiber);

    // Keep scanning and use the map to restore deleted items as moves.
    for (; !step.done; newIdx++, step = newChildren.next()) {
      var _newFiber4 = updateFromMap(existingChildren, returnFiber, newIdx, step.value, expirationTime);
      if (_newFiber4 !== null) {
        if (shouldTrackSideEffects) {
          if (_newFiber4.alternate !== null) {
            // The new fiber is a work in progress, but if there exists a
            // current, that means that we reused the fiber. We need to delete
            // it from the child list so that we don't add it to the deletion
            // list.
            existingChildren.delete(_newFiber4.key === null ? newIdx : _newFiber4.key);
          }
        }
        lastPlacedIndex = placeChild(_newFiber4, lastPlacedIndex, newIdx);
        if (previousNewFiber === null) {
          resultingFirstChild = _newFiber4;
        } else {
          previousNewFiber.sibling = _newFiber4;
        }
        previousNewFiber = _newFiber4;
      }
    }

    if (shouldTrackSideEffects) {
      // Any existing children that weren't consumed above were deleted. We need
      // to add them to the deletion list.
      existingChildren.forEach(function (child) {
        return deleteChild(returnFiber, child);
      });
    }

    return resultingFirstChild;
  }

  function reconcileSingleTextNode(returnFiber, currentFirstChild, textContent, expirationTime) {
    // There's no need to check for keys on text nodes since we don't have a
    // way to define them.
    if (currentFirstChild !== null && currentFirstChild.tag === HostText) {
      // We already have an existing node so let's just update it and delete
      // the rest.
      deleteRemainingChildren(returnFiber, currentFirstChild.sibling);
      var existing = useFiber(currentFirstChild, textContent, expirationTime);
      existing.return = returnFiber;
      return existing;
    }
    // The existing first child is not a text node so we need to create one
    // and delete the existing ones.
    deleteRemainingChildren(returnFiber, currentFirstChild);
    var created = createFiberFromText(textContent, returnFiber.mode, expirationTime);
    created.return = returnFiber;
    return created;
  }

  function reconcileSingleElement(returnFiber, currentFirstChild, element, expirationTime) {
    var key = element.key;
    var child = currentFirstChild;
    while (child !== null) {
      // TODO: If key === null and child.key === null, then this only applies to
      // the first item in the list.
      if (child.key === key) {
        if (child.tag === Fragment ? element.type === REACT_FRAGMENT_TYPE : child.elementType === element.type || (
        // Keep this check inline so it only runs on the false path:
        isCompatibleFamilyForHotReloading(child, element))) {
          deleteRemainingChildren(returnFiber, child.sibling);
          var existing = useFiber(child, element.type === REACT_FRAGMENT_TYPE ? element.props.children : element.props, expirationTime);
          existing.ref = coerceRef(returnFiber, child, element);
          existing.return = returnFiber;
          {
            existing._debugSource = element._source;
            existing._debugOwner = element._owner;
          }
          return existing;
        } else {
          deleteRemainingChildren(returnFiber, child);
          break;
        }
      } else {
        deleteChild(returnFiber, child);
      }
      child = child.sibling;
    }

    if (element.type === REACT_FRAGMENT_TYPE) {
      var created = createFiberFromFragment(element.props.children, returnFiber.mode, expirationTime, element.key);
      created.return = returnFiber;
      return created;
    } else {
      var _created4 = createFiberFromElement(element, returnFiber.mode, expirationTime);
      _created4.ref = coerceRef(returnFiber, currentFirstChild, element);
      _created4.return = returnFiber;
      return _created4;
    }
  }

  function reconcileSinglePortal(returnFiber, currentFirstChild, portal, expirationTime) {
    var key = portal.key;
    var child = currentFirstChild;
    while (child !== null) {
      // TODO: If key === null and child.key === null, then this only applies to
      // the first item in the list.
      if (child.key === key) {
        if (child.tag === HostPortal && child.stateNode.containerInfo === portal.containerInfo && child.stateNode.implementation === portal.implementation) {
          deleteRemainingChildren(returnFiber, child.sibling);
          var existing = useFiber(child, portal.children || [], expirationTime);
          existing.return = returnFiber;
          return existing;
        } else {
          deleteRemainingChildren(returnFiber, child);
          break;
        }
      } else {
        deleteChild(returnFiber, child);
      }
      child = child.sibling;
    }

    var created = createFiberFromPortal(portal, returnFiber.mode, expirationTime);
    created.return = returnFiber;
    return created;
  }

  // This API will tag the children with the side-effect of the reconciliation
  // itself. They will be added to the side-effect list as we pass through the
  // children and the parent.
  function reconcileChildFibers(returnFiber, currentFirstChild, newChild, expirationTime) {
    // This function is not recursive.
    // If the top level item is an array, we treat it as a set of children,
    // not as a fragment. Nested arrays on the other hand will be treated as
    // fragment nodes. Recursion happens at the normal flow.

    // Handle top level unkeyed fragments as if they were arrays.
    // This leads to an ambiguity between <>{[...]}</> and <>...</>.
    // We treat the ambiguous cases above the same.
    var isUnkeyedTopLevelFragment = typeof newChild === 'object' && newChild !== null && newChild.type === REACT_FRAGMENT_TYPE && newChild.key === null;
    if (isUnkeyedTopLevelFragment) {
      newChild = newChild.props.children;
    }

    // Handle object types
    var isObject = typeof newChild === 'object' && newChild !== null;

    if (isObject) {
      switch (newChild.$$typeof) {
        case REACT_ELEMENT_TYPE:
          return placeSingleChild(reconcileSingleElement(returnFiber, currentFirstChild, newChild, expirationTime));
        case REACT_PORTAL_TYPE:
          return placeSingleChild(reconcileSinglePortal(returnFiber, currentFirstChild, newChild, expirationTime));
      }
    }

    if (typeof newChild === 'string' || typeof newChild === 'number') {
      return placeSingleChild(reconcileSingleTextNode(returnFiber, currentFirstChild, '' + newChild, expirationTime));
    }

    if (isArray(newChild)) {
      return reconcileChildrenArray(returnFiber, currentFirstChild, newChild, expirationTime);
    }

    if (getIteratorFn(newChild)) {
      return reconcileChildrenIterator(returnFiber, currentFirstChild, newChild, expirationTime);
    }

    if (isObject) {
      throwOnInvalidObjectType(returnFiber, newChild);
    }

    {
      if (typeof newChild === 'function') {
        warnOnFunctionType();
      }
    }
    if (typeof newChild === 'undefined' && !isUnkeyedTopLevelFragment) {
      // If the new child is undefined, and the return fiber is a composite
      // component, throw an error. If Fiber return types are disabled,
      // we already threw above.
      switch (returnFiber.tag) {
        case ClassComponent:
          {
            {
              var instance = returnFiber.stateNode;
              if (instance.render._isMockFunction) {
                // We allow auto-mocks to proceed as if they're returning null.
                break;
              }
            }
          }
        // Intentionally fall through to the next case, which handles both
        // functions and classes
        // eslint-disable-next-lined no-fallthrough
        case FunctionComponent:
          {
            var Component = returnFiber.type;
            (function () {
              {
                {
                  throw ReactError(Error((Component.displayName || Component.name || 'Component') + '(...): Nothing was returned from render. This usually means a return statement is missing. Or, to render nothing, return null.'));
                }
              }
            })();
          }
      }
    }

    // Remaining cases are all treated as empty.
    return deleteRemainingChildren(returnFiber, currentFirstChild);
  }

  return reconcileChildFibers;
}

var reconcileChildFibers = ChildReconciler(true);
var mountChildFibers = ChildReconciler(false);

function cloneChildFibers(current$$1, workInProgress) {
  (function () {
    if (!(current$$1 === null || workInProgress.child === current$$1.child)) {
      {
        throw ReactError(Error('Resuming work not yet implemented.'));
      }
    }
  })();

  if (workInProgress.child === null) {
    return;
  }

  var currentChild = workInProgress.child;
  var newChild = createWorkInProgress(currentChild, currentChild.pendingProps, currentChild.expirationTime);
  workInProgress.child = newChild;

  newChild.return = workInProgress;
  while (currentChild.sibling !== null) {
    currentChild = currentChild.sibling;
    newChild = newChild.sibling = createWorkInProgress(currentChild, currentChild.pendingProps, currentChild.expirationTime);
    newChild.return = workInProgress;
  }
  newChild.sibling = null;
}

// Reset a workInProgress child set to prepare it for a second pass.
function resetChildFibers(workInProgress, renderExpirationTime) {
  var child = workInProgress.child;
  while (child !== null) {
    resetWorkInProgress(child, renderExpirationTime);
    child = child.sibling;
  }
}

var NO_CONTEXT = {};

var contextStackCursor$1 = createCursor(NO_CONTEXT);
var contextFiberStackCursor = createCursor(NO_CONTEXT);
var rootInstanceStackCursor = createCursor(NO_CONTEXT);

function requiredContext(c) {
  (function () {
    if (!(c !== NO_CONTEXT)) {
      {
        throw ReactError(Error('Expected host context to exist. This error is likely caused by a bug in React. Please file an issue.'));
      }
    }
  })();
  return c;
}

function getRootHostContainer() {
  var rootInstance = requiredContext(rootInstanceStackCursor.current);
  return rootInstance;
}

function pushHostContainer(fiber, nextRootInstance) {
  // Push current root instance onto the stack;
  // This allows us to reset root when portals are popped.
  push(rootInstanceStackCursor, nextRootInstance, fiber);
  // Track the context and the Fiber that provided it.
  // This enables us to pop only Fibers that provide unique contexts.
  push(contextFiberStackCursor, fiber, fiber);

  // Finally, we need to push the host context to the stack.
  // However, we can't just call getRootHostContext() and push it because
  // we'd have a different number of entries on the stack depending on
  // whether getRootHostContext() throws somewhere in renderer code or not.
  // So we push an empty value first. This lets us safely unwind on errors.
  push(contextStackCursor$1, NO_CONTEXT, fiber);
  var nextRootContext = getRootHostContext(nextRootInstance);
  // Now that we know this function doesn't throw, replace it.
  pop(contextStackCursor$1, fiber);
  push(contextStackCursor$1, nextRootContext, fiber);
}

function popHostContainer(fiber) {
  pop(contextStackCursor$1, fiber);
  pop(contextFiberStackCursor, fiber);
  pop(rootInstanceStackCursor, fiber);
}

function getHostContext() {
  var context = requiredContext(contextStackCursor$1.current);
  return context;
}

function pushHostContext(fiber) {
  var rootInstance = requiredContext(rootInstanceStackCursor.current);
  var context = requiredContext(contextStackCursor$1.current);
  var nextContext = getChildHostContext(context, fiber.type, rootInstance);

  // Don't push this Fiber's context unless it's unique.
  if (context === nextContext) {
    return;
  }

  // Track the context and the Fiber that provided it.
  // This enables us to pop only Fibers that provide unique contexts.
  push(contextFiberStackCursor, fiber, fiber);
  push(contextStackCursor$1, nextContext, fiber);
}

function popHostContext(fiber) {
  // Do not pop unless this Fiber provided the current context.
  // pushHostContext() only pushes Fibers that provide unique contexts.
  if (contextFiberStackCursor.current !== fiber) {
    return;
  }

  pop(contextStackCursor$1, fiber);
  pop(contextFiberStackCursor, fiber);
}

var DefaultSuspenseContext = 0;

// The Suspense Context is split into two parts. The lower bits is
// inherited deeply down the subtree. The upper bits only affect
// this immediate suspense boundary and gets reset each new
// boundary or suspense list.
var SubtreeSuspenseContextMask = 1;

// Subtree Flags:

// InvisibleParentSuspenseContext indicates that one of our parent Suspense
// boundaries is not currently showing visible main content.
// Either because it is already showing a fallback or is not mounted at all.
// We can use this to determine if it is desirable to trigger a fallback at
// the parent. If not, then we might need to trigger undesirable boundaries
// and/or suspend the commit to avoid hiding the parent content.
var InvisibleParentSuspenseContext = 1;

// Shallow Flags:

// ForceSuspenseFallback can be used by SuspenseList to force newly added
// items into their fallback state during one of the render passes.
var ForceSuspenseFallback = 2;

var suspenseStackCursor = createCursor(DefaultSuspenseContext);

function hasSuspenseContext(parentContext, flag) {
  return (parentContext & flag) !== 0;
}

function setDefaultShallowSuspenseContext(parentContext) {
  return parentContext & SubtreeSuspenseContextMask;
}

function setShallowSuspenseContext(parentContext, shallowContext) {
  return parentContext & SubtreeSuspenseContextMask | shallowContext;
}

function addSubtreeSuspenseContext(parentContext, subtreeContext) {
  return parentContext | subtreeContext;
}

function pushSuspenseContext(fiber, newContext) {
  push(suspenseStackCursor, newContext, fiber);
}

function popSuspenseContext(fiber) {
  pop(suspenseStackCursor, fiber);
}

// TODO: This is now an empty object. Should we switch this to a boolean?
// Alternatively we can make this use an effect tag similar to SuspenseList.


function shouldCaptureSuspense(workInProgress, hasInvisibleParent) {
  // If it was the primary children that just suspended, capture and render the
  var nextState = workInProgress.memoizedState;
  if (nextState !== null) {
    return false;
  }
  var props = workInProgress.memoizedProps;
  // In order to capture, the Suspense component must have a fallback prop.
  if (props.fallback === undefined) {
    return false;
  }
  // Regular boundaries always capture.
  if (props.unstable_avoidThisFallback !== true) {
    return true;
  }
  // If it's a boundary we should avoid, then we prefer to bubble up to the
  // parent boundary if it is currently invisible.
  if (hasInvisibleParent) {
    return false;
  }
  // If the parent is not able to handle it, we must handle it.
  return true;
}

function findFirstSuspended(row) {
  var node = row;
  while (node !== null) {
    if (node.tag === SuspenseComponent) {
      var state = node.memoizedState;
      if (state !== null) {
        return node;
      }
    } else if (node.tag === SuspenseListComponent &&
    // revealOrder undefined can't be trusted because it don't
    // keep track of whether it suspended or not.
    node.memoizedProps.revealOrder !== undefined) {
      var didSuspend = (node.effectTag & DidCapture) !== NoEffect;
      if (didSuspend) {
        return node;
      }
    } else if (node.child !== null) {
      node.child.return = node;
      node = node.child;
      continue;
    }
    if (node === row) {
      return null;
    }
    while (node.sibling === null) {
      if (node.return === null || node.return === row) {
        return null;
      }
      node = node.return;
    }
    node.sibling.return = node.return;
    node = node.sibling;
  }
  return null;
}

var NoEffect$1 = /*             */0;
var UnmountSnapshot = /*      */2;
var UnmountMutation = /*      */4;
var MountMutation = /*        */8;
var UnmountLayout = /*        */16;
var MountLayout = /*          */32;
var MountPassive = /*         */64;
var UnmountPassive = /*       */128;

var ReactCurrentDispatcher$1 = ReactSharedInternals.ReactCurrentDispatcher;


var didWarnAboutMismatchedHooksForComponent = void 0;
{
  didWarnAboutMismatchedHooksForComponent = new Set();
}

// These are set right before calling the component.
var renderExpirationTime$1 = NoWork;
// The work-in-progress fiber. I've named it differently to distinguish it from
// the work-in-progress hook.
var currentlyRenderingFiber$1 = null;

// Hooks are stored as a linked list on the fiber's memoizedState field. The
// current hook list is the list that belongs to the current fiber. The
// work-in-progress hook list is a new list that will be added to the
// work-in-progress fiber.
var currentHook = null;
var nextCurrentHook = null;
var firstWorkInProgressHook = null;
var workInProgressHook = null;
var nextWorkInProgressHook = null;

var remainingExpirationTime = NoWork;
var componentUpdateQueue = null;
var sideEffectTag = 0;

// Updates scheduled during render will trigger an immediate re-render at the
// end of the current pass. We can't store these updates on the normal queue,
// because if the work is aborted, they should be discarded. Because this is
// a relatively rare case, we also don't want to add an additional field to
// either the hook or queue object types. So we store them in a lazily create
// map of queue -> render-phase updates, which are discarded once the component
// completes without re-rendering.

// Whether an update was scheduled during the currently executing render pass.
var didScheduleRenderPhaseUpdate = false;
// Lazily created map of render-phase updates
var renderPhaseUpdates = null;
// Counter to prevent infinite loops.
var numberOfReRenders = 0;
var RE_RENDER_LIMIT = 25;

// In DEV, this is the name of the currently executing primitive hook
var currentHookNameInDev = null;

// In DEV, this list ensures that hooks are called in the same order between renders.
// The list stores the order of hooks used during the initial render (mount).
// Subsequent renders (updates) reference this list.
var hookTypesDev = null;
var hookTypesUpdateIndexDev = -1;

// In DEV, this tracks whether currently rendering component needs to ignore
// the dependencies for Hooks that need them (e.g. useEffect or useMemo).
// When true, such Hooks will always be "remounted". Only used during hot reload.
var ignorePreviousDependencies = false;

function mountHookTypesDev() {
  {
    var hookName = currentHookNameInDev;

    if (hookTypesDev === null) {
      hookTypesDev = [hookName];
    } else {
      hookTypesDev.push(hookName);
    }
  }
}

function updateHookTypesDev() {
  {
    var hookName = currentHookNameInDev;

    if (hookTypesDev !== null) {
      hookTypesUpdateIndexDev++;
      if (hookTypesDev[hookTypesUpdateIndexDev] !== hookName) {
        warnOnHookMismatchInDev(hookName);
      }
    }
  }
}

function checkDepsAreArrayDev(deps) {
  {
    if (deps !== undefined && deps !== null && !Array.isArray(deps)) {
      // Verify deps, but only on mount to avoid extra checks.
      // It's unlikely their type would change as usually you define them inline.
      warning$1(false, '%s received a final argument that is not an array (instead, received `%s`). When ' + 'specified, the final argument must be an array.', currentHookNameInDev, typeof deps);
    }
  }
}

function warnOnHookMismatchInDev(currentHookName) {
  {
    var componentName = getComponentName(currentlyRenderingFiber$1.type);
    if (!didWarnAboutMismatchedHooksForComponent.has(componentName)) {
      didWarnAboutMismatchedHooksForComponent.add(componentName);

      if (hookTypesDev !== null) {
        var table = '';

        var secondColumnStart = 30;

        for (var i = 0; i <= hookTypesUpdateIndexDev; i++) {
          var oldHookName = hookTypesDev[i];
          var newHookName = i === hookTypesUpdateIndexDev ? currentHookName : oldHookName;

          var row = i + 1 + '. ' + oldHookName;

          // Extra space so second column lines up
          // lol @ IE not supporting String#repeat
          while (row.length < secondColumnStart) {
            row += ' ';
          }

          row += newHookName + '\n';

          table += row;
        }

        warning$1(false, 'React has detected a change in the order of Hooks called by %s. ' + 'This will lead to bugs and errors if not fixed. ' + 'For more information, read the Rules of Hooks: https://fb.me/rules-of-hooks\n\n' + '   Previous render            Next render\n' + '   ------------------------------------------------------\n' + '%s' + '   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n', componentName, table);
      }
    }
  }
}

function throwInvalidHookError() {
  (function () {
    {
      {
        throw ReactError(Error('Invalid hook call. Hooks can only be called inside of the body of a function component. This could happen for one of the following reasons:\n1. You might have mismatching versions of React and the renderer (such as React DOM)\n2. You might be breaking the Rules of Hooks\n3. You might have more than one copy of React in the same app\nSee https://fb.me/react-invalid-hook-call for tips about how to debug and fix this problem.'));
      }
    }
  })();
}

function areHookInputsEqual(nextDeps, prevDeps) {
  {
    if (ignorePreviousDependencies) {
      // Only true when this component is being hot reloaded.
      return false;
    }
  }

  if (prevDeps === null) {
    {
      warning$1(false, '%s received a final argument during this render, but not during ' + 'the previous render. Even though the final argument is optional, ' + 'its type cannot change between renders.', currentHookNameInDev);
    }
    return false;
  }

  {
    // Don't bother comparing lengths in prod because these arrays should be
    // passed inline.
    if (nextDeps.length !== prevDeps.length) {
      warning$1(false, 'The final argument passed to %s changed size between renders. The ' + 'order and size of this array must remain constant.\n\n' + 'Previous: %s\n' + 'Incoming: %s', currentHookNameInDev, '[' + prevDeps.join(', ') + ']', '[' + nextDeps.join(', ') + ']');
    }
  }
  for (var i = 0; i < prevDeps.length && i < nextDeps.length; i++) {
    if (is(nextDeps[i], prevDeps[i])) {
      continue;
    }
    return false;
  }
  return true;
}

function renderWithHooks(current, workInProgress, Component, props, refOrContext, nextRenderExpirationTime) {
  renderExpirationTime$1 = nextRenderExpirationTime;
  currentlyRenderingFiber$1 = workInProgress;
  nextCurrentHook = current !== null ? current.memoizedState : null;

  {
    hookTypesDev = current !== null ? current._debugHookTypes : null;
    hookTypesUpdateIndexDev = -1;
    // Used for hot reloading:
    ignorePreviousDependencies = current !== null && current.type !== workInProgress.type;
  }

  // The following should have already been reset
  // currentHook = null;
  // workInProgressHook = null;

  // remainingExpirationTime = NoWork;
  // componentUpdateQueue = null;

  // didScheduleRenderPhaseUpdate = false;
  // renderPhaseUpdates = null;
  // numberOfReRenders = 0;
  // sideEffectTag = 0;

  // TODO Warn if no hooks are used at all during mount, then some are used during update.
  // Currently we will identify the update render as a mount because nextCurrentHook === null.
  // This is tricky because it's valid for certain types of components (e.g. React.lazy)

  // Using nextCurrentHook to differentiate between mount/update only works if at least one stateful hook is used.
  // Non-stateful hooks (e.g. context) don't get added to memoizedState,
  // so nextCurrentHook would be null during updates and mounts.
  {
    if (nextCurrentHook !== null) {
      ReactCurrentDispatcher$1.current = HooksDispatcherOnUpdateInDEV;
    } else if (hookTypesDev !== null) {
      // This dispatcher handles an edge case where a component is updating,
      // but no stateful hooks have been used.
      // We want to match the production code behavior (which will use HooksDispatcherOnMount),
      // but with the extra DEV validation to ensure hooks ordering hasn't changed.
      // This dispatcher does that.
      ReactCurrentDispatcher$1.current = HooksDispatcherOnMountWithHookTypesInDEV;
    } else {
      ReactCurrentDispatcher$1.current = HooksDispatcherOnMountInDEV;
    }
  }

  var children = Component(props, refOrContext);

  if (didScheduleRenderPhaseUpdate) {
    do {
      didScheduleRenderPhaseUpdate = false;
      numberOfReRenders += 1;

      // Start over from the beginning of the list
      nextCurrentHook = current !== null ? current.memoizedState : null;
      nextWorkInProgressHook = firstWorkInProgressHook;

      currentHook = null;
      workInProgressHook = null;
      componentUpdateQueue = null;

      {
        // Also validate hook order for cascading updates.
        hookTypesUpdateIndexDev = -1;
      }

      ReactCurrentDispatcher$1.current = HooksDispatcherOnUpdateInDEV;

      children = Component(props, refOrContext);
    } while (didScheduleRenderPhaseUpdate);

    renderPhaseUpdates = null;
    numberOfReRenders = 0;
  }

  // We can assume the previous dispatcher is always this one, since we set it
  // at the beginning of the render phase and there's no re-entrancy.
  ReactCurrentDispatcher$1.current = ContextOnlyDispatcher;

  var renderedWork = currentlyRenderingFiber$1;

  renderedWork.memoizedState = firstWorkInProgressHook;
  renderedWork.expirationTime = remainingExpirationTime;
  renderedWork.updateQueue = componentUpdateQueue;
  renderedWork.effectTag |= sideEffectTag;

  {
    renderedWork._debugHookTypes = hookTypesDev;
  }

  // This check uses currentHook so that it works the same in DEV and prod bundles.
  // hookTypesDev could catch more cases (e.g. context) but only in DEV bundles.
  var didRenderTooFewHooks = currentHook !== null && currentHook.next !== null;

  renderExpirationTime$1 = NoWork;
  currentlyRenderingFiber$1 = null;

  currentHook = null;
  nextCurrentHook = null;
  firstWorkInProgressHook = null;
  workInProgressHook = null;
  nextWorkInProgressHook = null;

  {
    currentHookNameInDev = null;
    hookTypesDev = null;
    hookTypesUpdateIndexDev = -1;
  }

  remainingExpirationTime = NoWork;
  componentUpdateQueue = null;
  sideEffectTag = 0;

  // These were reset above
  // didScheduleRenderPhaseUpdate = false;
  // renderPhaseUpdates = null;
  // numberOfReRenders = 0;

  (function () {
    if (!!didRenderTooFewHooks) {
      {
        throw ReactError(Error('Rendered fewer hooks than expected. This may be caused by an accidental early return statement.'));
      }
    }
  })();

  return children;
}

function bailoutHooks(current, workInProgress, expirationTime) {
  workInProgress.updateQueue = current.updateQueue;
  workInProgress.effectTag &= ~(Passive | Update);
  if (current.expirationTime <= expirationTime) {
    current.expirationTime = NoWork;
  }
}

function resetHooks() {
  // We can assume the previous dispatcher is always this one, since we set it
  // at the beginning of the render phase and there's no re-entrancy.
  ReactCurrentDispatcher$1.current = ContextOnlyDispatcher;

  // This is used to reset the state of this module when a component throws.
  // It's also called inside mountIndeterminateComponent if we determine the
  // component is a module-style component.
  renderExpirationTime$1 = NoWork;
  currentlyRenderingFiber$1 = null;

  currentHook = null;
  nextCurrentHook = null;
  firstWorkInProgressHook = null;
  workInProgressHook = null;
  nextWorkInProgressHook = null;

  {
    hookTypesDev = null;
    hookTypesUpdateIndexDev = -1;

    currentHookNameInDev = null;
  }

  remainingExpirationTime = NoWork;
  componentUpdateQueue = null;
  sideEffectTag = 0;

  didScheduleRenderPhaseUpdate = false;
  renderPhaseUpdates = null;
  numberOfReRenders = 0;
}

function mountWorkInProgressHook() {
  var hook = {
    memoizedState: null,

    baseState: null,
    queue: null,
    baseUpdate: null,

    next: null
  };

  if (workInProgressHook === null) {
    // This is the first hook in the list
    firstWorkInProgressHook = workInProgressHook = hook;
  } else {
    // Append to the end of the list
    workInProgressHook = workInProgressHook.next = hook;
  }
  return workInProgressHook;
}

function updateWorkInProgressHook() {
  // This function is used both for updates and for re-renders triggered by a
  // render phase update. It assumes there is either a current hook we can
  // clone, or a work-in-progress hook from a previous render pass that we can
  // use as a base. When we reach the end of the base list, we must switch to
  // the dispatcher used for mounts.
  if (nextWorkInProgressHook !== null) {
    // There's already a work-in-progress. Reuse it.
    workInProgressHook = nextWorkInProgressHook;
    nextWorkInProgressHook = workInProgressHook.next;

    currentHook = nextCurrentHook;
    nextCurrentHook = currentHook !== null ? currentHook.next : null;
  } else {
    // Clone from the current hook.
    (function () {
      if (!(nextCurrentHook !== null)) {
        {
          throw ReactError(Error('Rendered more hooks than during the previous render.'));
        }
      }
    })();
    currentHook = nextCurrentHook;

    var newHook = {
      memoizedState: currentHook.memoizedState,

      baseState: currentHook.baseState,
      queue: currentHook.queue,
      baseUpdate: currentHook.baseUpdate,

      next: null
    };

    if (workInProgressHook === null) {
      // This is the first hook in the list.
      workInProgressHook = firstWorkInProgressHook = newHook;
    } else {
      // Append to the end of the list.
      workInProgressHook = workInProgressHook.next = newHook;
    }
    nextCurrentHook = currentHook.next;
  }
  return workInProgressHook;
}

function createFunctionComponentUpdateQueue() {
  return {
    lastEffect: null
  };
}

function basicStateReducer(state, action) {
  return typeof action === 'function' ? action(state) : action;
}

function mountReducer(reducer, initialArg, init) {
  var hook = mountWorkInProgressHook();
  var initialState = void 0;
  if (init !== undefined) {
    initialState = init(initialArg);
  } else {
    initialState = initialArg;
  }
  hook.memoizedState = hook.baseState = initialState;
  var queue = hook.queue = {
    last: null,
    dispatch: null,
    lastRenderedReducer: reducer,
    lastRenderedState: initialState
  };
  var dispatch = queue.dispatch = dispatchAction.bind(null,
  // Flow doesn't know this is non-null, but we do.
  currentlyRenderingFiber$1, queue);
  return [hook.memoizedState, dispatch];
}

function updateReducer(reducer, initialArg, init) {
  var hook = updateWorkInProgressHook();
  var queue = hook.queue;
  (function () {
    if (!(queue !== null)) {
      {
        throw ReactError(Error('Should have a queue. This is likely a bug in React. Please file an issue.'));
      }
    }
  })();

  queue.lastRenderedReducer = reducer;

  if (numberOfReRenders > 0) {
    // This is a re-render. Apply the new render phase updates to the previous
    var _dispatch = queue.dispatch;
    if (renderPhaseUpdates !== null) {
      // Render phase updates are stored in a map of queue -> linked list
      var firstRenderPhaseUpdate = renderPhaseUpdates.get(queue);
      if (firstRenderPhaseUpdate !== undefined) {
        renderPhaseUpdates.delete(queue);
        var newState = hook.memoizedState;
        var update = firstRenderPhaseUpdate;
        do {
          // Process this render phase update. We don't have to check the
          // priority because it will always be the same as the current
          // render's.
          var _action = update.action;
          newState = reducer(newState, _action);
          update = update.next;
        } while (update !== null);

        // Mark that the fiber performed work, but only if the new state is
        // different from the current state.
        if (!is(newState, hook.memoizedState)) {
          markWorkInProgressReceivedUpdate();
        }

        hook.memoizedState = newState;
        // Don't persist the state accumulated from the render phase updates to
        // the base state unless the queue is empty.
        // TODO: Not sure if this is the desired semantics, but it's what we
        // do for gDSFP. I can't remember why.
        if (hook.baseUpdate === queue.last) {
          hook.baseState = newState;
        }

        queue.lastRenderedState = newState;

        return [newState, _dispatch];
      }
    }
    return [hook.memoizedState, _dispatch];
  }

  // The last update in the entire queue
  var last = queue.last;
  // The last update that is part of the base state.
  var baseUpdate = hook.baseUpdate;
  var baseState = hook.baseState;

  // Find the first unprocessed update.
  var first = void 0;
  if (baseUpdate !== null) {
    if (last !== null) {
      // For the first update, the queue is a circular linked list where
      // `queue.last.next = queue.first`. Once the first update commits, and
      // the `baseUpdate` is no longer empty, we can unravel the list.
      last.next = null;
    }
    first = baseUpdate.next;
  } else {
    first = last !== null ? last.next : null;
  }
  if (first !== null) {
    var _newState = baseState;
    var newBaseState = null;
    var newBaseUpdate = null;
    var prevUpdate = baseUpdate;
    var _update = first;
    var didSkip = false;
    do {
      var updateExpirationTime = _update.expirationTime;
      if (updateExpirationTime < renderExpirationTime$1) {
        // Priority is insufficient. Skip this update. If this is the first
        // skipped update, the previous update/state is the new base
        // update/state.
        if (!didSkip) {
          didSkip = true;
          newBaseUpdate = prevUpdate;
          newBaseState = _newState;
        }
        // Update the remaining priority in the queue.
        if (updateExpirationTime > remainingExpirationTime) {
          remainingExpirationTime = updateExpirationTime;
        }
      } else {
        // This update does have sufficient priority.

        // Mark the event time of this update as relevant to this render pass.
        // TODO: This should ideally use the true event time of this update rather than
        // its priority which is a derived and not reverseable value.
        // TODO: We should skip this update if it was already committed but currently
        // we have no way of detecting the difference between a committed and suspended
        // update here.
        markRenderEventTimeAndConfig(updateExpirationTime, _update.suspenseConfig);

        // Process this update.
        if (_update.eagerReducer === reducer) {
          // If this update was processed eagerly, and its reducer matches the
          // current reducer, we can use the eagerly computed state.
          _newState = _update.eagerState;
        } else {
          var _action2 = _update.action;
          _newState = reducer(_newState, _action2);
        }
      }
      prevUpdate = _update;
      _update = _update.next;
    } while (_update !== null && _update !== first);

    if (!didSkip) {
      newBaseUpdate = prevUpdate;
      newBaseState = _newState;
    }

    // Mark that the fiber performed work, but only if the new state is
    // different from the current state.
    if (!is(_newState, hook.memoizedState)) {
      markWorkInProgressReceivedUpdate();
    }

    hook.memoizedState = _newState;
    hook.baseUpdate = newBaseUpdate;
    hook.baseState = newBaseState;

    queue.lastRenderedState = _newState;
  }

  var dispatch = queue.dispatch;
  return [hook.memoizedState, dispatch];
}

function mountState(initialState) {
  var hook = mountWorkInProgressHook();
  if (typeof initialState === 'function') {
    initialState = initialState();
  }
  hook.memoizedState = hook.baseState = initialState;
  var queue = hook.queue = {
    last: null,
    dispatch: null,
    lastRenderedReducer: basicStateReducer,
    lastRenderedState: initialState
  };
  var dispatch = queue.dispatch = dispatchAction.bind(null,
  // Flow doesn't know this is non-null, but we do.
  currentlyRenderingFiber$1, queue);
  return [hook.memoizedState, dispatch];
}

function updateState(initialState) {
  return updateReducer(basicStateReducer, initialState);
}

function pushEffect(tag, create, destroy, deps) {
  var effect = {
    tag: tag,
    create: create,
    destroy: destroy,
    deps: deps,
    // Circular
    next: null
  };
  if (componentUpdateQueue === null) {
    componentUpdateQueue = createFunctionComponentUpdateQueue();
    componentUpdateQueue.lastEffect = effect.next = effect;
  } else {
    var _lastEffect = componentUpdateQueue.lastEffect;
    if (_lastEffect === null) {
      componentUpdateQueue.lastEffect = effect.next = effect;
    } else {
      var firstEffect = _lastEffect.next;
      _lastEffect.next = effect;
      effect.next = firstEffect;
      componentUpdateQueue.lastEffect = effect;
    }
  }
  return effect;
}

function mountRef(initialValue) {
  var hook = mountWorkInProgressHook();
  var ref = { current: initialValue };
  {
    Object.seal(ref);
  }
  hook.memoizedState = ref;
  return ref;
}

function updateRef(initialValue) {
  var hook = updateWorkInProgressHook();
  return hook.memoizedState;
}

function mountEffectImpl(fiberEffectTag, hookEffectTag, create, deps) {
  var hook = mountWorkInProgressHook();
  var nextDeps = deps === undefined ? null : deps;
  sideEffectTag |= fiberEffectTag;
  hook.memoizedState = pushEffect(hookEffectTag, create, undefined, nextDeps);
}

function updateEffectImpl(fiberEffectTag, hookEffectTag, create, deps) {
  var hook = updateWorkInProgressHook();
  var nextDeps = deps === undefined ? null : deps;
  var destroy = undefined;

  if (currentHook !== null) {
    var prevEffect = currentHook.memoizedState;
    destroy = prevEffect.destroy;
    if (nextDeps !== null) {
      var prevDeps = prevEffect.deps;
      if (areHookInputsEqual(nextDeps, prevDeps)) {
        pushEffect(NoEffect$1, create, destroy, nextDeps);
        return;
      }
    }
  }

  sideEffectTag |= fiberEffectTag;
  hook.memoizedState = pushEffect(hookEffectTag, create, destroy, nextDeps);
}

function mountEffect(create, deps) {
  {
    // $FlowExpectedError - jest isn't a global, and isn't recognized outside of tests
    if ('undefined' !== typeof jest) {
      warnIfNotCurrentlyActingEffectsInDEV(currentlyRenderingFiber$1);
    }
  }
  return mountEffectImpl(Update | Passive, UnmountPassive | MountPassive, create, deps);
}

function updateEffect(create, deps) {
  {
    // $FlowExpectedError - jest isn't a global, and isn't recognized outside of tests
    if ('undefined' !== typeof jest) {
      warnIfNotCurrentlyActingEffectsInDEV(currentlyRenderingFiber$1);
    }
  }
  return updateEffectImpl(Update | Passive, UnmountPassive | MountPassive, create, deps);
}

function mountLayoutEffect(create, deps) {
  return mountEffectImpl(Update, UnmountMutation | MountLayout, create, deps);
}

function updateLayoutEffect(create, deps) {
  return updateEffectImpl(Update, UnmountMutation | MountLayout, create, deps);
}

function imperativeHandleEffect(create, ref) {
  if (typeof ref === 'function') {
    var refCallback = ref;
    var _inst = create();
    refCallback(_inst);
    return function () {
      refCallback(null);
    };
  } else if (ref !== null && ref !== undefined) {
    var refObject = ref;
    {
      !refObject.hasOwnProperty('current') ? warning$1(false, 'Expected useImperativeHandle() first argument to either be a ' + 'ref callback or React.createRef() object. Instead received: %s.', 'an object with keys {' + Object.keys(refObject).join(', ') + '}') : void 0;
    }
    var _inst2 = create();
    refObject.current = _inst2;
    return function () {
      refObject.current = null;
    };
  }
}

function mountImperativeHandle(ref, create, deps) {
  {
    !(typeof create === 'function') ? warning$1(false, 'Expected useImperativeHandle() second argument to be a function ' + 'that creates a handle. Instead received: %s.', create !== null ? typeof create : 'null') : void 0;
  }

  // TODO: If deps are provided, should we skip comparing the ref itself?
  var effectDeps = deps !== null && deps !== undefined ? deps.concat([ref]) : null;

  return mountEffectImpl(Update, UnmountMutation | MountLayout, imperativeHandleEffect.bind(null, create, ref), effectDeps);
}

function updateImperativeHandle(ref, create, deps) {
  {
    !(typeof create === 'function') ? warning$1(false, 'Expected useImperativeHandle() second argument to be a function ' + 'that creates a handle. Instead received: %s.', create !== null ? typeof create : 'null') : void 0;
  }

  // TODO: If deps are provided, should we skip comparing the ref itself?
  var effectDeps = deps !== null && deps !== undefined ? deps.concat([ref]) : null;

  return updateEffectImpl(Update, UnmountMutation | MountLayout, imperativeHandleEffect.bind(null, create, ref), effectDeps);
}

function mountDebugValue(value, formatterFn) {
  // This hook is normally a no-op.
  // The react-debug-hooks package injects its own implementation
  // so that e.g. DevTools can display custom hook values.
}

var updateDebugValue = mountDebugValue;

function mountCallback(callback, deps) {
  var hook = mountWorkInProgressHook();
  var nextDeps = deps === undefined ? null : deps;
  hook.memoizedState = [callback, nextDeps];
  return callback;
}

function updateCallback(callback, deps) {
  var hook = updateWorkInProgressHook();
  var nextDeps = deps === undefined ? null : deps;
  var prevState = hook.memoizedState;
  if (prevState !== null) {
    if (nextDeps !== null) {
      var prevDeps = prevState[1];
      if (areHookInputsEqual(nextDeps, prevDeps)) {
        return prevState[0];
      }
    }
  }
  hook.memoizedState = [callback, nextDeps];
  return callback;
}

function mountMemo(nextCreate, deps) {
  var hook = mountWorkInProgressHook();
  var nextDeps = deps === undefined ? null : deps;
  var nextValue = nextCreate();
  hook.memoizedState = [nextValue, nextDeps];
  return nextValue;
}

function updateMemo(nextCreate, deps) {
  var hook = updateWorkInProgressHook();
  var nextDeps = deps === undefined ? null : deps;
  var prevState = hook.memoizedState;
  if (prevState !== null) {
    // Assume these are defined. If they're not, areHookInputsEqual will warn.
    if (nextDeps !== null) {
      var prevDeps = prevState[1];
      if (areHookInputsEqual(nextDeps, prevDeps)) {
        return prevState[0];
      }
    }
  }
  var nextValue = nextCreate();
  hook.memoizedState = [nextValue, nextDeps];
  return nextValue;
}

function dispatchAction(fiber, queue, action) {
  (function () {
    if (!(numberOfReRenders < RE_RENDER_LIMIT)) {
      {
        throw ReactError(Error('Too many re-renders. React limits the number of renders to prevent an infinite loop.'));
      }
    }
  })();

  {
    !(arguments.length <= 3) ? warning$1(false, "State updates from the useState() and useReducer() Hooks don't support the " + 'second callback argument. To execute a side effect after ' + 'rendering, declare it in the component body with useEffect().') : void 0;
  }

  var alternate = fiber.alternate;
  if (fiber === currentlyRenderingFiber$1 || alternate !== null && alternate === currentlyRenderingFiber$1) {
    // This is a render phase update. Stash it in a lazily-created map of
    // queue -> linked list of updates. After this render pass, we'll restart
    // and apply the stashed updates on top of the work-in-progress hook.
    didScheduleRenderPhaseUpdate = true;
    var update = {
      expirationTime: renderExpirationTime$1,
      suspenseConfig: null,
      action: action,
      eagerReducer: null,
      eagerState: null,
      next: null
    };
    {
      update.priority = getCurrentPriorityLevel();
    }
    if (renderPhaseUpdates === null) {
      renderPhaseUpdates = new Map();
    }
    var firstRenderPhaseUpdate = renderPhaseUpdates.get(queue);
    if (firstRenderPhaseUpdate === undefined) {
      renderPhaseUpdates.set(queue, update);
    } else {
      // Append the update to the end of the list.
      var lastRenderPhaseUpdate = firstRenderPhaseUpdate;
      while (lastRenderPhaseUpdate.next !== null) {
        lastRenderPhaseUpdate = lastRenderPhaseUpdate.next;
      }
      lastRenderPhaseUpdate.next = update;
    }
  } else {
    if (revertPassiveEffectsChange) {
      flushPassiveEffects();
    }

    var currentTime = requestCurrentTime();
    var _suspenseConfig = requestCurrentSuspenseConfig();
    var _expirationTime = computeExpirationForFiber(currentTime, fiber, _suspenseConfig);

    var _update2 = {
      expirationTime: _expirationTime,
      suspenseConfig: _suspenseConfig,
      action: action,
      eagerReducer: null,
      eagerState: null,
      next: null
    };

    {
      _update2.priority = getCurrentPriorityLevel();
    }

    // Append the update to the end of the list.
    var _last = queue.last;
    if (_last === null) {
      // This is the first update. Create a circular list.
      _update2.next = _update2;
    } else {
      var first = _last.next;
      if (first !== null) {
        // Still circular.
        _update2.next = first;
      }
      _last.next = _update2;
    }
    queue.last = _update2;

    if (fiber.expirationTime === NoWork && (alternate === null || alternate.expirationTime === NoWork)) {
      // The queue is currently empty, which means we can eagerly compute the
      // next state before entering the render phase. If the new state is the
      // same as the current state, we may be able to bail out entirely.
      var _lastRenderedReducer = queue.lastRenderedReducer;
      if (_lastRenderedReducer !== null) {
        var prevDispatcher = void 0;
        {
          prevDispatcher = ReactCurrentDispatcher$1.current;
          ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnUpdateInDEV;
        }
        try {
          var currentState = queue.lastRenderedState;
          var _eagerState = _lastRenderedReducer(currentState, action);
          // Stash the eagerly computed state, and the reducer used to compute
          // it, on the update object. If the reducer hasn't changed by the
          // time we enter the render phase, then the eager state can be used
          // without calling the reducer again.
          _update2.eagerReducer = _lastRenderedReducer;
          _update2.eagerState = _eagerState;
          if (is(_eagerState, currentState)) {
            // Fast path. We can bail out without scheduling React to re-render.
            // It's still possible that we'll need to rebase this update later,
            // if the component re-renders for a different reason and by that
            // time the reducer has changed.
            return;
          }
        } catch (error) {
          // Suppress the error. It will throw again in the render phase.
        } finally {
          {
            ReactCurrentDispatcher$1.current = prevDispatcher;
          }
        }
      }
    }
    {
      // $FlowExpectedError - jest isn't a global, and isn't recognized outside of tests
      if ('undefined' !== typeof jest) {
        warnIfNotScopedWithMatchingAct(fiber);
        warnIfNotCurrentlyActingUpdatesInDev(fiber);
      }
    }
    scheduleWork(fiber, _expirationTime);
  }
}

var ContextOnlyDispatcher = {
  readContext: readContext,

  useCallback: throwInvalidHookError,
  useContext: throwInvalidHookError,
  useEffect: throwInvalidHookError,
  useImperativeHandle: throwInvalidHookError,
  useLayoutEffect: throwInvalidHookError,
  useMemo: throwInvalidHookError,
  useReducer: throwInvalidHookError,
  useRef: throwInvalidHookError,
  useState: throwInvalidHookError,
  useDebugValue: throwInvalidHookError,
  useResponder: throwInvalidHookError
};

var HooksDispatcherOnMountInDEV = null;
var HooksDispatcherOnMountWithHookTypesInDEV = null;
var HooksDispatcherOnUpdateInDEV = null;
var InvalidNestedHooksDispatcherOnMountInDEV = null;
var InvalidNestedHooksDispatcherOnUpdateInDEV = null;

{
  var warnInvalidContextAccess = function () {
    warning$1(false, 'Context can only be read while React is rendering. ' + 'In classes, you can read it in the render method or getDerivedStateFromProps. ' + 'In function components, you can read it directly in the function body, but not ' + 'inside Hooks like useReducer() or useMemo().');
  };

  var warnInvalidHookAccess = function () {
    warning$1(false, 'Do not call Hooks inside useEffect(...), useMemo(...), or other built-in Hooks. ' + 'You can only call Hooks at the top level of your React function. ' + 'For more information, see ' + 'https://fb.me/rules-of-hooks');
  };

  HooksDispatcherOnMountInDEV = {
    readContext: function (context, observedBits) {
      return readContext(context, observedBits);
    },
    useCallback: function (callback, deps) {
      currentHookNameInDev = 'useCallback';
      mountHookTypesDev();
      checkDepsAreArrayDev(deps);
      return mountCallback(callback, deps);
    },
    useContext: function (context, observedBits) {
      currentHookNameInDev = 'useContext';
      mountHookTypesDev();
      return readContext(context, observedBits);
    },
    useEffect: function (create, deps) {
      currentHookNameInDev = 'useEffect';
      mountHookTypesDev();
      checkDepsAreArrayDev(deps);
      return mountEffect(create, deps);
    },
    useImperativeHandle: function (ref, create, deps) {
      currentHookNameInDev = 'useImperativeHandle';
      mountHookTypesDev();
      checkDepsAreArrayDev(deps);
      return mountImperativeHandle(ref, create, deps);
    },
    useLayoutEffect: function (create, deps) {
      currentHookNameInDev = 'useLayoutEffect';
      mountHookTypesDev();
      checkDepsAreArrayDev(deps);
      return mountLayoutEffect(create, deps);
    },
    useMemo: function (create, deps) {
      currentHookNameInDev = 'useMemo';
      mountHookTypesDev();
      checkDepsAreArrayDev(deps);
      var prevDispatcher = ReactCurrentDispatcher$1.current;
      ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnMountInDEV;
      try {
        return mountMemo(create, deps);
      } finally {
        ReactCurrentDispatcher$1.current = prevDispatcher;
      }
    },
    useReducer: function (reducer, initialArg, init) {
      currentHookNameInDev = 'useReducer';
      mountHookTypesDev();
      var prevDispatcher = ReactCurrentDispatcher$1.current;
      ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnMountInDEV;
      try {
        return mountReducer(reducer, initialArg, init);
      } finally {
        ReactCurrentDispatcher$1.current = prevDispatcher;
      }
    },
    useRef: function (initialValue) {
      currentHookNameInDev = 'useRef';
      mountHookTypesDev();
      return mountRef(initialValue);
    },
    useState: function (initialState) {
      currentHookNameInDev = 'useState';
      mountHookTypesDev();
      var prevDispatcher = ReactCurrentDispatcher$1.current;
      ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnMountInDEV;
      try {
        return mountState(initialState);
      } finally {
        ReactCurrentDispatcher$1.current = prevDispatcher;
      }
    },
    useDebugValue: function (value, formatterFn) {
      currentHookNameInDev = 'useDebugValue';
      mountHookTypesDev();
      return mountDebugValue(value, formatterFn);
    },
    useResponder: function (responder, props) {
      currentHookNameInDev = 'useResponder';
      mountHookTypesDev();
      return createResponderListener(responder, props);
    }
  };

  HooksDispatcherOnMountWithHookTypesInDEV = {
    readContext: function (context, observedBits) {
      return readContext(context, observedBits);
    },
    useCallback: function (callback, deps) {
      currentHookNameInDev = 'useCallback';
      updateHookTypesDev();
      return mountCallback(callback, deps);
    },
    useContext: function (context, observedBits) {
      currentHookNameInDev = 'useContext';
      updateHookTypesDev();
      return readContext(context, observedBits);
    },
    useEffect: function (create, deps) {
      currentHookNameInDev = 'useEffect';
      updateHookTypesDev();
      return mountEffect(create, deps);
    },
    useImperativeHandle: function (ref, create, deps) {
      currentHookNameInDev = 'useImperativeHandle';
      updateHookTypesDev();
      return mountImperativeHandle(ref, create, deps);
    },
    useLayoutEffect: function (create, deps) {
      currentHookNameInDev = 'useLayoutEffect';
      updateHookTypesDev();
      return mountLayoutEffect(create, deps);
    },
    useMemo: function (create, deps) {
      currentHookNameInDev = 'useMemo';
      updateHookTypesDev();
      var prevDispatcher = ReactCurrentDispatcher$1.current;
      ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnMountInDEV;
      try {
        return mountMemo(create, deps);
      } finally {
        ReactCurrentDispatcher$1.current = prevDispatcher;
      }
    },
    useReducer: function (reducer, initialArg, init) {
      currentHookNameInDev = 'useReducer';
      updateHookTypesDev();
      var prevDispatcher = ReactCurrentDispatcher$1.current;
      ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnMountInDEV;
      try {
        return mountReducer(reducer, initialArg, init);
      } finally {
        ReactCurrentDispatcher$1.current = prevDispatcher;
      }
    },
    useRef: function (initialValue) {
      currentHookNameInDev = 'useRef';
      updateHookTypesDev();
      return mountRef(initialValue);
    },
    useState: function (initialState) {
      currentHookNameInDev = 'useState';
      updateHookTypesDev();
      var prevDispatcher = ReactCurrentDispatcher$1.current;
      ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnMountInDEV;
      try {
        return mountState(initialState);
      } finally {
        ReactCurrentDispatcher$1.current = prevDispatcher;
      }
    },
    useDebugValue: function (value, formatterFn) {
      currentHookNameInDev = 'useDebugValue';
      updateHookTypesDev();
      return mountDebugValue(value, formatterFn);
    },
    useResponder: function (responder, props) {
      currentHookNameInDev = 'useResponder';
      updateHookTypesDev();
      return createResponderListener(responder, props);
    }
  };

  HooksDispatcherOnUpdateInDEV = {
    readContext: function (context, observedBits) {
      return readContext(context, observedBits);
    },
    useCallback: function (callback, deps) {
      currentHookNameInDev = 'useCallback';
      updateHookTypesDev();
      return updateCallback(callback, deps);
    },
    useContext: function (context, observedBits) {
      currentHookNameInDev = 'useContext';
      updateHookTypesDev();
      return readContext(context, observedBits);
    },
    useEffect: function (create, deps) {
      currentHookNameInDev = 'useEffect';
      updateHookTypesDev();
      return updateEffect(create, deps);
    },
    useImperativeHandle: function (ref, create, deps) {
      currentHookNameInDev = 'useImperativeHandle';
      updateHookTypesDev();
      return updateImperativeHandle(ref, create, deps);
    },
    useLayoutEffect: function (create, deps) {
      currentHookNameInDev = 'useLayoutEffect';
      updateHookTypesDev();
      return updateLayoutEffect(create, deps);
    },
    useMemo: function (create, deps) {
      currentHookNameInDev = 'useMemo';
      updateHookTypesDev();
      var prevDispatcher = ReactCurrentDispatcher$1.current;
      ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnUpdateInDEV;
      try {
        return updateMemo(create, deps);
      } finally {
        ReactCurrentDispatcher$1.current = prevDispatcher;
      }
    },
    useReducer: function (reducer, initialArg, init) {
      currentHookNameInDev = 'useReducer';
      updateHookTypesDev();
      var prevDispatcher = ReactCurrentDispatcher$1.current;
      ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnUpdateInDEV;
      try {
        return updateReducer(reducer, initialArg, init);
      } finally {
        ReactCurrentDispatcher$1.current = prevDispatcher;
      }
    },
    useRef: function (initialValue) {
      currentHookNameInDev = 'useRef';
      updateHookTypesDev();
      return updateRef(initialValue);
    },
    useState: function (initialState) {
      currentHookNameInDev = 'useState';
      updateHookTypesDev();
      var prevDispatcher = ReactCurrentDispatcher$1.current;
      ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnUpdateInDEV;
      try {
        return updateState(initialState);
      } finally {
        ReactCurrentDispatcher$1.current = prevDispatcher;
      }
    },
    useDebugValue: function (value, formatterFn) {
      currentHookNameInDev = 'useDebugValue';
      updateHookTypesDev();
      return updateDebugValue(value, formatterFn);
    },
    useResponder: function (responder, props) {
      currentHookNameInDev = 'useResponder';
      updateHookTypesDev();
      return createResponderListener(responder, props);
    }
  };

  InvalidNestedHooksDispatcherOnMountInDEV = {
    readContext: function (context, observedBits) {
      warnInvalidContextAccess();
      return readContext(context, observedBits);
    },
    useCallback: function (callback, deps) {
      currentHookNameInDev = 'useCallback';
      warnInvalidHookAccess();
      mountHookTypesDev();
      return mountCallback(callback, deps);
    },
    useContext: function (context, observedBits) {
      currentHookNameInDev = 'useContext';
      warnInvalidHookAccess();
      mountHookTypesDev();
      return readContext(context, observedBits);
    },
    useEffect: function (create, deps) {
      currentHookNameInDev = 'useEffect';
      warnInvalidHookAccess();
      mountHookTypesDev();
      return mountEffect(create, deps);
    },
    useImperativeHandle: function (ref, create, deps) {
      currentHookNameInDev = 'useImperativeHandle';
      warnInvalidHookAccess();
      mountHookTypesDev();
      return mountImperativeHandle(ref, create, deps);
    },
    useLayoutEffect: function (create, deps) {
      currentHookNameInDev = 'useLayoutEffect';
      warnInvalidHookAccess();
      mountHookTypesDev();
      return mountLayoutEffect(create, deps);
    },
    useMemo: function (create, deps) {
      currentHookNameInDev = 'useMemo';
      warnInvalidHookAccess();
      mountHookTypesDev();
      var prevDispatcher = ReactCurrentDispatcher$1.current;
      ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnMountInDEV;
      try {
        return mountMemo(create, deps);
      } finally {
        ReactCurrentDispatcher$1.current = prevDispatcher;
      }
    },
    useReducer: function (reducer, initialArg, init) {
      currentHookNameInDev = 'useReducer';
      warnInvalidHookAccess();
      mountHookTypesDev();
      var prevDispatcher = ReactCurrentDispatcher$1.current;
      ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnMountInDEV;
      try {
        return mountReducer(reducer, initialArg, init);
      } finally {
        ReactCurrentDispatcher$1.current = prevDispatcher;
      }
    },
    useRef: function (initialValue) {
      currentHookNameInDev = 'useRef';
      warnInvalidHookAccess();
      mountHookTypesDev();
      return mountRef(initialValue);
    },
    useState: function (initialState) {
      currentHookNameInDev = 'useState';
      warnInvalidHookAccess();
      mountHookTypesDev();
      var prevDispatcher = ReactCurrentDispatcher$1.current;
      ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnMountInDEV;
      try {
        return mountState(initialState);
      } finally {
        ReactCurrentDispatcher$1.current = prevDispatcher;
      }
    },
    useDebugValue: function (value, formatterFn) {
      currentHookNameInDev = 'useDebugValue';
      warnInvalidHookAccess();
      mountHookTypesDev();
      return mountDebugValue(value, formatterFn);
    },
    useResponder: function (responder, props) {
      currentHookNameInDev = 'useResponder';
      warnInvalidHookAccess();
      mountHookTypesDev();
      return createResponderListener(responder, props);
    }
  };

  InvalidNestedHooksDispatcherOnUpdateInDEV = {
    readContext: function (context, observedBits) {
      warnInvalidContextAccess();
      return readContext(context, observedBits);
    },
    useCallback: function (callback, deps) {
      currentHookNameInDev = 'useCallback';
      warnInvalidHookAccess();
      updateHookTypesDev();
      return updateCallback(callback, deps);
    },
    useContext: function (context, observedBits) {
      currentHookNameInDev = 'useContext';
      warnInvalidHookAccess();
      updateHookTypesDev();
      return readContext(context, observedBits);
    },
    useEffect: function (create, deps) {
      currentHookNameInDev = 'useEffect';
      warnInvalidHookAccess();
      updateHookTypesDev();
      return updateEffect(create, deps);
    },
    useImperativeHandle: function (ref, create, deps) {
      currentHookNameInDev = 'useImperativeHandle';
      warnInvalidHookAccess();
      updateHookTypesDev();
      return updateImperativeHandle(ref, create, deps);
    },
    useLayoutEffect: function (create, deps) {
      currentHookNameInDev = 'useLayoutEffect';
      warnInvalidHookAccess();
      updateHookTypesDev();
      return updateLayoutEffect(create, deps);
    },
    useMemo: function (create, deps) {
      currentHookNameInDev = 'useMemo';
      warnInvalidHookAccess();
      updateHookTypesDev();
      var prevDispatcher = ReactCurrentDispatcher$1.current;
      ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnUpdateInDEV;
      try {
        return updateMemo(create, deps);
      } finally {
        ReactCurrentDispatcher$1.current = prevDispatcher;
      }
    },
    useReducer: function (reducer, initialArg, init) {
      currentHookNameInDev = 'useReducer';
      warnInvalidHookAccess();
      updateHookTypesDev();
      var prevDispatcher = ReactCurrentDispatcher$1.current;
      ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnUpdateInDEV;
      try {
        return updateReducer(reducer, initialArg, init);
      } finally {
        ReactCurrentDispatcher$1.current = prevDispatcher;
      }
    },
    useRef: function (initialValue) {
      currentHookNameInDev = 'useRef';
      warnInvalidHookAccess();
      updateHookTypesDev();
      return updateRef(initialValue);
    },
    useState: function (initialState) {
      currentHookNameInDev = 'useState';
      warnInvalidHookAccess();
      updateHookTypesDev();
      var prevDispatcher = ReactCurrentDispatcher$1.current;
      ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnUpdateInDEV;
      try {
        return updateState(initialState);
      } finally {
        ReactCurrentDispatcher$1.current = prevDispatcher;
      }
    },
    useDebugValue: function (value, formatterFn) {
      currentHookNameInDev = 'useDebugValue';
      warnInvalidHookAccess();
      updateHookTypesDev();
      return updateDebugValue(value, formatterFn);
    },
    useResponder: function (responder, props) {
      currentHookNameInDev = 'useResponder';
      warnInvalidHookAccess();
      updateHookTypesDev();
      return createResponderListener(responder, props);
    }
  };
}

// Intentionally not named imports because Rollup would use dynamic dispatch for
// CommonJS interop named imports.
var now$1 = Scheduler.unstable_now;


var commitTime = 0;
var profilerStartTime = -1;

function getCommitTime() {
  return commitTime;
}

function recordCommitTime() {
  if (!enableProfilerTimer) {
    return;
  }
  commitTime = now$1();
}

function startProfilerTimer(fiber) {
  if (!enableProfilerTimer) {
    return;
  }

  profilerStartTime = now$1();

  if (fiber.actualStartTime < 0) {
    fiber.actualStartTime = now$1();
  }
}

function stopProfilerTimerIfRunning(fiber) {
  if (!enableProfilerTimer) {
    return;
  }
  profilerStartTime = -1;
}

function stopProfilerTimerIfRunningAndRecordDelta(fiber, overrideBaseTime) {
  if (!enableProfilerTimer) {
    return;
  }

  if (profilerStartTime >= 0) {
    var elapsedTime = now$1() - profilerStartTime;
    fiber.actualDuration += elapsedTime;
    if (overrideBaseTime) {
      fiber.selfBaseDuration = elapsedTime;
    }
    profilerStartTime = -1;
  }
}

// The deepest Fiber on the stack involved in a hydration context.
// This may have been an insertion or a hydration.
var hydrationParentFiber = null;
var nextHydratableInstance = null;
var isHydrating = false;

function enterHydrationState(fiber) {
  if (!supportsHydration) {
    return false;
  }

  var parentInstance = fiber.stateNode.containerInfo;
  nextHydratableInstance = getFirstHydratableChild(parentInstance);
  hydrationParentFiber = fiber;
  isHydrating = true;
  return true;
}

function reenterHydrationStateFromDehydratedSuspenseInstance(fiber) {
  if (!supportsHydration) {
    return false;
  }

  var suspenseInstance = fiber.stateNode;
  nextHydratableInstance = getNextHydratableSibling(suspenseInstance);
  popToNextHostParent(fiber);
  isHydrating = true;
  return true;
}

function deleteHydratableInstance(returnFiber, instance) {
  {
    switch (returnFiber.tag) {
      case HostRoot:
        didNotHydrateContainerInstance(returnFiber.stateNode.containerInfo, instance);
        break;
      case HostComponent:
        didNotHydrateInstance(returnFiber.type, returnFiber.memoizedProps, returnFiber.stateNode, instance);
        break;
    }
  }

  var childToDelete = createFiberFromHostInstanceForDeletion();
  childToDelete.stateNode = instance;
  childToDelete.return = returnFiber;
  childToDelete.effectTag = Deletion;

  // This might seem like it belongs on progressedFirstDeletion. However,
  // these children are not part of the reconciliation list of children.
  // Even if we abort and rereconcile the children, that will try to hydrate
  // again and the nodes are still in the host tree so these will be
  // recreated.
  if (returnFiber.lastEffect !== null) {
    returnFiber.lastEffect.nextEffect = childToDelete;
    returnFiber.lastEffect = childToDelete;
  } else {
    returnFiber.firstEffect = returnFiber.lastEffect = childToDelete;
  }
}

function insertNonHydratedInstance(returnFiber, fiber) {
  fiber.effectTag |= Placement;
  {
    switch (returnFiber.tag) {
      case HostRoot:
        {
          var parentContainer = returnFiber.stateNode.containerInfo;
          switch (fiber.tag) {
            case HostComponent:
              var type = fiber.type;
              var props = fiber.pendingProps;
              didNotFindHydratableContainerInstance(parentContainer, type, props);
              break;
            case HostText:
              var text = fiber.pendingProps;
              didNotFindHydratableContainerTextInstance(parentContainer, text);
              break;
            case SuspenseComponent:
              
              break;
          }
          break;
        }
      case HostComponent:
        {
          var parentType = returnFiber.type;
          var parentProps = returnFiber.memoizedProps;
          var parentInstance = returnFiber.stateNode;
          switch (fiber.tag) {
            case HostComponent:
              var _type = fiber.type;
              var _props = fiber.pendingProps;
              didNotFindHydratableInstance(parentType, parentProps, parentInstance, _type, _props);
              break;
            case HostText:
              var _text = fiber.pendingProps;
              didNotFindHydratableTextInstance(parentType, parentProps, parentInstance, _text);
              break;
            case SuspenseComponent:
              didNotFindHydratableSuspenseInstance(parentType, parentProps, parentInstance);
              break;
          }
          break;
        }
      default:
        return;
    }
  }
}

function tryHydrate(fiber, nextInstance) {
  switch (fiber.tag) {
    case HostComponent:
      {
        var type = fiber.type;
        var props = fiber.pendingProps;
        var instance = canHydrateInstance(nextInstance, type, props);
        if (instance !== null) {
          fiber.stateNode = instance;
          return true;
        }
        return false;
      }
    case HostText:
      {
        var text = fiber.pendingProps;
        var textInstance = canHydrateTextInstance(nextInstance, text);
        if (textInstance !== null) {
          fiber.stateNode = textInstance;
          return true;
        }
        return false;
      }
    case SuspenseComponent:
      {
        if (enableSuspenseServerRenderer) {
          var suspenseInstance = canHydrateSuspenseInstance(nextInstance);
          if (suspenseInstance !== null) {
            // Downgrade the tag to a dehydrated component until we've hydrated it.
            fiber.tag = DehydratedSuspenseComponent;
            fiber.stateNode = suspenseInstance;
            return true;
          }
        }
        return false;
      }
    default:
      return false;
  }
}

function tryToClaimNextHydratableInstance(fiber) {
  if (!isHydrating) {
    return;
  }
  var nextInstance = nextHydratableInstance;
  if (!nextInstance) {
    // Nothing to hydrate. Make it an insertion.
    insertNonHydratedInstance(hydrationParentFiber, fiber);
    isHydrating = false;
    hydrationParentFiber = fiber;
    return;
  }
  var firstAttemptedInstance = nextInstance;
  if (!tryHydrate(fiber, nextInstance)) {
    // If we can't hydrate this instance let's try the next one.
    // We use this as a heuristic. It's based on intuition and not data so it
    // might be flawed or unnecessary.
    nextInstance = getNextHydratableSibling(firstAttemptedInstance);
    if (!nextInstance || !tryHydrate(fiber, nextInstance)) {
      // Nothing to hydrate. Make it an insertion.
      insertNonHydratedInstance(hydrationParentFiber, fiber);
      isHydrating = false;
      hydrationParentFiber = fiber;
      return;
    }
    // We matched the next one, we'll now assume that the first one was
    // superfluous and we'll delete it. Since we can't eagerly delete it
    // we'll have to schedule a deletion. To do that, this node needs a dummy
    // fiber associated with it.
    deleteHydratableInstance(hydrationParentFiber, firstAttemptedInstance);
  }
  hydrationParentFiber = fiber;
  nextHydratableInstance = getFirstHydratableChild(nextInstance);
}

function prepareToHydrateHostInstance(fiber, rootContainerInstance, hostContext) {
  if (!supportsHydration) {
    (function () {
      {
        {
          throw ReactError(Error('Expected prepareToHydrateHostInstance() to never be called. This error is likely caused by a bug in React. Please file an issue.'));
        }
      }
    })();
  }

  var instance = fiber.stateNode;
  var updatePayload = hydrateInstance(instance, fiber.type, fiber.memoizedProps, rootContainerInstance, hostContext, fiber);
  // TODO: Type this specific to this type of component.
  fiber.updateQueue = updatePayload;
  // If the update payload indicates that there is a change or if there
  // is a new ref we mark this as an update.
  if (updatePayload !== null) {
    return true;
  }
  return false;
}

function prepareToHydrateHostTextInstance(fiber) {
  if (!supportsHydration) {
    (function () {
      {
        {
          throw ReactError(Error('Expected prepareToHydrateHostTextInstance() to never be called. This error is likely caused by a bug in React. Please file an issue.'));
        }
      }
    })();
  }

  var textInstance = fiber.stateNode;
  var textContent = fiber.memoizedProps;
  var shouldUpdate = hydrateTextInstance(textInstance, textContent, fiber);
  {
    if (shouldUpdate) {
      // We assume that prepareToHydrateHostTextInstance is called in a context where the
      // hydration parent is the parent host component of this host text.
      var returnFiber = hydrationParentFiber;
      if (returnFiber !== null) {
        switch (returnFiber.tag) {
          case HostRoot:
            {
              var parentContainer = returnFiber.stateNode.containerInfo;
              didNotMatchHydratedContainerTextInstance(parentContainer, textInstance, textContent);
              break;
            }
          case HostComponent:
            {
              var parentType = returnFiber.type;
              var parentProps = returnFiber.memoizedProps;
              var parentInstance = returnFiber.stateNode;
              didNotMatchHydratedTextInstance(parentType, parentProps, parentInstance, textInstance, textContent);
              break;
            }
        }
      }
    }
  }
  return shouldUpdate;
}

function skipPastDehydratedSuspenseInstance(fiber) {
  if (!supportsHydration) {
    (function () {
      {
        {
          throw ReactError(Error('Expected skipPastDehydratedSuspenseInstance() to never be called. This error is likely caused by a bug in React. Please file an issue.'));
        }
      }
    })();
  }
  var suspenseInstance = fiber.stateNode;
  (function () {
    if (!suspenseInstance) {
      {
        throw ReactError(Error('Expected to have a hydrated suspense instance. This error is likely caused by a bug in React. Please file an issue.'));
      }
    }
  })();
  nextHydratableInstance = getNextHydratableInstanceAfterSuspenseInstance(suspenseInstance);
}

function popToNextHostParent(fiber) {
  var parent = fiber.return;
  while (parent !== null && parent.tag !== HostComponent && parent.tag !== HostRoot && parent.tag !== DehydratedSuspenseComponent) {
    parent = parent.return;
  }
  hydrationParentFiber = parent;
}

function popHydrationState(fiber) {
  if (!supportsHydration) {
    return false;
  }
  if (fiber !== hydrationParentFiber) {
    // We're deeper than the current hydration context, inside an inserted
    // tree.
    return false;
  }
  if (!isHydrating) {
    // If we're not currently hydrating but we're in a hydration context, then
    // we were an insertion and now need to pop up reenter hydration of our
    // siblings.
    popToNextHostParent(fiber);
    isHydrating = true;
    return false;
  }

  var type = fiber.type;

  // If we have any remaining hydratable nodes, we need to delete them now.
  // We only do this deeper than head and body since they tend to have random
  // other nodes in them. We also ignore components with pure text content in
  // side of them.
  // TODO: Better heuristic.
  if (fiber.tag !== HostComponent || type !== 'head' && type !== 'body' && !shouldSetTextContent(type, fiber.memoizedProps)) {
    var nextInstance = nextHydratableInstance;
    while (nextInstance) {
      deleteHydratableInstance(fiber, nextInstance);
      nextInstance = getNextHydratableSibling(nextInstance);
    }
  }

  popToNextHostParent(fiber);
  nextHydratableInstance = hydrationParentFiber ? getNextHydratableSibling(fiber.stateNode) : null;
  return true;
}

function resetHydrationState() {
  if (!supportsHydration) {
    return;
  }

  hydrationParentFiber = null;
  nextHydratableInstance = null;
  isHydrating = false;
}

var ReactCurrentOwner$3 = ReactSharedInternals.ReactCurrentOwner;

var didReceiveUpdate = false;

var didWarnAboutBadClass = void 0;
var didWarnAboutModulePatternComponent = void 0;
var didWarnAboutContextTypeOnFunctionComponent = void 0;
var didWarnAboutGetDerivedStateOnFunctionComponent = void 0;
var didWarnAboutFunctionRefs = void 0;
var didWarnAboutReassigningProps = void 0;
var didWarnAboutMaxDuration = void 0;
var didWarnAboutRevealOrder = void 0;
var didWarnAboutTailOptions = void 0;
var didWarnAboutDefaultPropsOnFunctionComponent = void 0;

{
  didWarnAboutBadClass = {};
  didWarnAboutModulePatternComponent = {};
  didWarnAboutContextTypeOnFunctionComponent = {};
  didWarnAboutGetDerivedStateOnFunctionComponent = {};
  didWarnAboutFunctionRefs = {};
  didWarnAboutReassigningProps = false;
  didWarnAboutMaxDuration = false;
  didWarnAboutRevealOrder = {};
  didWarnAboutTailOptions = {};
  didWarnAboutDefaultPropsOnFunctionComponent = {};
}

function reconcileChildren(current$$1, workInProgress, nextChildren, renderExpirationTime) {
  if (current$$1 === null) {
    // If this is a fresh new component that hasn't been rendered yet, we
    // won't update its child set by applying minimal side-effects. Instead,
    // we will add them all to the child before it gets rendered. That means
    // we can optimize this reconciliation pass by not tracking side-effects.
    workInProgress.child = mountChildFibers(workInProgress, null, nextChildren, renderExpirationTime);
  } else {
    // If the current child is the same as the work in progress, it means that
    // we haven't yet started any work on these children. Therefore, we use
    // the clone algorithm to create a copy of all the current children.

    // If we had any progressed work already, that is invalid at this point so
    // let's throw it out.
    workInProgress.child = reconcileChildFibers(workInProgress, current$$1.child, nextChildren, renderExpirationTime);
  }
}

function forceUnmountCurrentAndReconcile(current$$1, workInProgress, nextChildren, renderExpirationTime) {
  // This function is fork of reconcileChildren. It's used in cases where we
  // want to reconcile without matching against the existing set. This has the
  // effect of all current children being unmounted; even if the type and key
  // are the same, the old child is unmounted and a new child is created.
  //
  // To do this, we're going to go through the reconcile algorithm twice. In
  // the first pass, we schedule a deletion for all the current children by
  // passing null.
  workInProgress.child = reconcileChildFibers(workInProgress, current$$1.child, null, renderExpirationTime);
  // In the second pass, we mount the new children. The trick here is that we
  // pass null in place of where we usually pass the current child set. This has
  // the effect of remounting all children regardless of whether their their
  // identity matches.
  workInProgress.child = reconcileChildFibers(workInProgress, null, nextChildren, renderExpirationTime);
}

function updateForwardRef(current$$1, workInProgress, Component, nextProps, renderExpirationTime) {
  // TODO: current can be non-null here even if the component
  // hasn't yet mounted. This happens after the first render suspends.
  // We'll need to figure out if this is fine or can cause issues.

  {
    if (workInProgress.type !== workInProgress.elementType) {
      // Lazy component props can't be validated in createElement
      // because they're only guaranteed to be resolved here.
      var innerPropTypes = Component.propTypes;
      if (innerPropTypes) {
        checkPropTypes(innerPropTypes, nextProps, // Resolved props
        'prop', getComponentName(Component), getCurrentFiberStackInDev);
      }
    }
  }

  var render = Component.render;
  var ref = workInProgress.ref;

  // The rest is a fork of updateFunctionComponent
  var nextChildren = void 0;
  prepareToReadContext(workInProgress, renderExpirationTime);
  {
    ReactCurrentOwner$3.current = workInProgress;
    setCurrentPhase('render');
    nextChildren = renderWithHooks(current$$1, workInProgress, render, nextProps, ref, renderExpirationTime);
    if (debugRenderPhaseSideEffects || debugRenderPhaseSideEffectsForStrictMode && workInProgress.mode & StrictMode) {
      // Only double-render components with Hooks
      if (workInProgress.memoizedState !== null) {
        nextChildren = renderWithHooks(current$$1, workInProgress, render, nextProps, ref, renderExpirationTime);
      }
    }
    setCurrentPhase(null);
  }

  if (current$$1 !== null && !didReceiveUpdate) {
    bailoutHooks(current$$1, workInProgress, renderExpirationTime);
    return bailoutOnAlreadyFinishedWork(current$$1, workInProgress, renderExpirationTime);
  }

  // React DevTools reads this flag.
  workInProgress.effectTag |= PerformedWork;
  reconcileChildren(current$$1, workInProgress, nextChildren, renderExpirationTime);
  return workInProgress.child;
}

function updateMemoComponent(current$$1, workInProgress, Component, nextProps, updateExpirationTime, renderExpirationTime) {
  if (current$$1 === null) {
    var type = Component.type;
    if (isSimpleFunctionComponent(type) && Component.compare === null &&
    // SimpleMemoComponent codepath doesn't resolve outer props either.
    Component.defaultProps === undefined) {
      var resolvedType = type;
      {
        resolvedType = resolveFunctionForHotReloading(type);
      }
      // If this is a plain function component without default props,
      // and with only the default shallow comparison, we upgrade it
      // to a SimpleMemoComponent to allow fast path updates.
      workInProgress.tag = SimpleMemoComponent;
      workInProgress.type = resolvedType;
      {
        validateFunctionComponentInDev(workInProgress, type);
      }
      return updateSimpleMemoComponent(current$$1, workInProgress, resolvedType, nextProps, updateExpirationTime, renderExpirationTime);
    }
    {
      var innerPropTypes = type.propTypes;
      if (innerPropTypes) {
        // Inner memo component props aren't currently validated in createElement.
        // We could move it there, but we'd still need this for lazy code path.
        checkPropTypes(innerPropTypes, nextProps, // Resolved props
        'prop', getComponentName(type), getCurrentFiberStackInDev);
      }
    }
    var child = createFiberFromTypeAndProps(Component.type, null, nextProps, null, workInProgress.mode, renderExpirationTime);
    child.ref = workInProgress.ref;
    child.return = workInProgress;
    workInProgress.child = child;
    return child;
  }
  {
    var _type = Component.type;
    var _innerPropTypes = _type.propTypes;
    if (_innerPropTypes) {
      // Inner memo component props aren't currently validated in createElement.
      // We could move it there, but we'd still need this for lazy code path.
      checkPropTypes(_innerPropTypes, nextProps, // Resolved props
      'prop', getComponentName(_type), getCurrentFiberStackInDev);
    }
  }
  var currentChild = current$$1.child; // This is always exactly one child
  if (updateExpirationTime < renderExpirationTime) {
    // This will be the props with resolved defaultProps,
    // unlike current.memoizedProps which will be the unresolved ones.
    var prevProps = currentChild.memoizedProps;
    // Default to shallow comparison
    var compare = Component.compare;
    compare = compare !== null ? compare : shallowEqual;
    if (compare(prevProps, nextProps) && current$$1.ref === workInProgress.ref) {
      return bailoutOnAlreadyFinishedWork(current$$1, workInProgress, renderExpirationTime);
    }
  }
  // React DevTools reads this flag.
  workInProgress.effectTag |= PerformedWork;
  var newChild = createWorkInProgress(currentChild, nextProps, renderExpirationTime);
  newChild.ref = workInProgress.ref;
  newChild.return = workInProgress;
  workInProgress.child = newChild;
  return newChild;
}

function updateSimpleMemoComponent(current$$1, workInProgress, Component, nextProps, updateExpirationTime, renderExpirationTime) {
  // TODO: current can be non-null here even if the component
  // hasn't yet mounted. This happens when the inner render suspends.
  // We'll need to figure out if this is fine or can cause issues.

  {
    if (workInProgress.type !== workInProgress.elementType) {
      // Lazy component props can't be validated in createElement
      // because they're only guaranteed to be resolved here.
      var outerMemoType = workInProgress.elementType;
      if (outerMemoType.$$typeof === REACT_LAZY_TYPE) {
        // We warn when you define propTypes on lazy()
        // so let's just skip over it to find memo() outer wrapper.
        // Inner props for memo are validated later.
        outerMemoType = refineResolvedLazyComponent(outerMemoType);
      }
      var outerPropTypes = outerMemoType && outerMemoType.propTypes;
      if (outerPropTypes) {
        checkPropTypes(outerPropTypes, nextProps, // Resolved (SimpleMemoComponent has no defaultProps)
        'prop', getComponentName(outerMemoType), getCurrentFiberStackInDev);
      }
      // Inner propTypes will be validated in the function component path.
    }
  }
  if (current$$1 !== null) {
    var prevProps = current$$1.memoizedProps;
    if (shallowEqual(prevProps, nextProps) && current$$1.ref === workInProgress.ref && (
    // Prevent bailout if the implementation changed due to hot reload:
    workInProgress.type === current$$1.type)) {
      didReceiveUpdate = false;
      if (updateExpirationTime < renderExpirationTime) {
        return bailoutOnAlreadyFinishedWork(current$$1, workInProgress, renderExpirationTime);
      }
    }
  }
  return updateFunctionComponent(current$$1, workInProgress, Component, nextProps, renderExpirationTime);
}

function updateFragment(current$$1, workInProgress, renderExpirationTime) {
  var nextChildren = workInProgress.pendingProps;
  reconcileChildren(current$$1, workInProgress, nextChildren, renderExpirationTime);
  return workInProgress.child;
}

function updateMode(current$$1, workInProgress, renderExpirationTime) {
  var nextChildren = workInProgress.pendingProps.children;
  reconcileChildren(current$$1, workInProgress, nextChildren, renderExpirationTime);
  return workInProgress.child;
}

function updateProfiler(current$$1, workInProgress, renderExpirationTime) {
  if (enableProfilerTimer) {
    workInProgress.effectTag |= Update;
  }
  var nextProps = workInProgress.pendingProps;
  var nextChildren = nextProps.children;
  reconcileChildren(current$$1, workInProgress, nextChildren, renderExpirationTime);
  return workInProgress.child;
}

function markRef(current$$1, workInProgress) {
  var ref = workInProgress.ref;
  if (current$$1 === null && ref !== null || current$$1 !== null && current$$1.ref !== ref) {
    // Schedule a Ref effect
    workInProgress.effectTag |= Ref;
  }
}

function updateFunctionComponent(current$$1, workInProgress, Component, nextProps, renderExpirationTime) {
  {
    if (workInProgress.type !== workInProgress.elementType) {
      // Lazy component props can't be validated in createElement
      // because they're only guaranteed to be resolved here.
      var innerPropTypes = Component.propTypes;
      if (innerPropTypes) {
        checkPropTypes(innerPropTypes, nextProps, // Resolved props
        'prop', getComponentName(Component), getCurrentFiberStackInDev);
      }
    }
  }

  var context = void 0;
  if (!disableLegacyContext) {
    var unmaskedContext = getUnmaskedContext(workInProgress, Component, true);
    context = getMaskedContext(workInProgress, unmaskedContext);
  }

  var nextChildren = void 0;
  prepareToReadContext(workInProgress, renderExpirationTime);
  {
    ReactCurrentOwner$3.current = workInProgress;
    setCurrentPhase('render');
    nextChildren = renderWithHooks(current$$1, workInProgress, Component, nextProps, context, renderExpirationTime);
    if (debugRenderPhaseSideEffects || debugRenderPhaseSideEffectsForStrictMode && workInProgress.mode & StrictMode) {
      // Only double-render components with Hooks
      if (workInProgress.memoizedState !== null) {
        nextChildren = renderWithHooks(current$$1, workInProgress, Component, nextProps, context, renderExpirationTime);
      }
    }
    setCurrentPhase(null);
  }

  if (current$$1 !== null && !didReceiveUpdate) {
    bailoutHooks(current$$1, workInProgress, renderExpirationTime);
    return bailoutOnAlreadyFinishedWork(current$$1, workInProgress, renderExpirationTime);
  }

  // React DevTools reads this flag.
  workInProgress.effectTag |= PerformedWork;
  reconcileChildren(current$$1, workInProgress, nextChildren, renderExpirationTime);
  return workInProgress.child;
}

function updateClassComponent(current$$1, workInProgress, Component, nextProps, renderExpirationTime) {
  {
    if (workInProgress.type !== workInProgress.elementType) {
      // Lazy component props can't be validated in createElement
      // because they're only guaranteed to be resolved here.
      var innerPropTypes = Component.propTypes;
      if (innerPropTypes) {
        checkPropTypes(innerPropTypes, nextProps, // Resolved props
        'prop', getComponentName(Component), getCurrentFiberStackInDev);
      }
    }
  }

  // Push context providers early to prevent context stack mismatches.
  // During mounting we don't know the child context yet as the instance doesn't exist.
  // We will invalidate the child context in finishClassComponent() right after rendering.
  var hasContext = void 0;
  if (isContextProvider(Component)) {
    hasContext = true;
    pushContextProvider(workInProgress);
  } else {
    hasContext = false;
  }
  prepareToReadContext(workInProgress, renderExpirationTime);

  var instance = workInProgress.stateNode;
  var shouldUpdate = void 0;
  if (instance === null) {
    if (current$$1 !== null) {
      // An class component without an instance only mounts if it suspended
      // inside a non- concurrent tree, in an inconsistent state. We want to
      // tree it like a new mount, even though an empty version of it already
      // committed. Disconnect the alternate pointers.
      current$$1.alternate = null;
      workInProgress.alternate = null;
      // Since this is conceptually a new fiber, schedule a Placement effect
      workInProgress.effectTag |= Placement;
    }
    // In the initial pass we might need to construct the instance.
    constructClassInstance(workInProgress, Component, nextProps, renderExpirationTime);
    mountClassInstance(workInProgress, Component, nextProps, renderExpirationTime);
    shouldUpdate = true;
  } else if (current$$1 === null) {
    // In a resume, we'll already have an instance we can reuse.
    shouldUpdate = resumeMountClassInstance(workInProgress, Component, nextProps, renderExpirationTime);
  } else {
    shouldUpdate = updateClassInstance(current$$1, workInProgress, Component, nextProps, renderExpirationTime);
  }
  var nextUnitOfWork = finishClassComponent(current$$1, workInProgress, Component, shouldUpdate, hasContext, renderExpirationTime);
  {
    var inst = workInProgress.stateNode;
    if (inst.props !== nextProps) {
      !didWarnAboutReassigningProps ? warning$1(false, 'It looks like %s is reassigning its own `this.props` while rendering. ' + 'This is not supported and can lead to confusing bugs.', getComponentName(workInProgress.type) || 'a component') : void 0;
      didWarnAboutReassigningProps = true;
    }
  }
  return nextUnitOfWork;
}

function finishClassComponent(current$$1, workInProgress, Component, shouldUpdate, hasContext, renderExpirationTime) {
  // Refs should update even if shouldComponentUpdate returns false
  markRef(current$$1, workInProgress);

  var didCaptureError = (workInProgress.effectTag & DidCapture) !== NoEffect;

  if (!shouldUpdate && !didCaptureError) {
    // Context providers should defer to sCU for rendering
    if (hasContext) {
      invalidateContextProvider(workInProgress, Component, false);
    }

    return bailoutOnAlreadyFinishedWork(current$$1, workInProgress, renderExpirationTime);
  }

  var instance = workInProgress.stateNode;

  // Rerender
  ReactCurrentOwner$3.current = workInProgress;
  var nextChildren = void 0;
  if (didCaptureError && typeof Component.getDerivedStateFromError !== 'function') {
    // If we captured an error, but getDerivedStateFrom catch is not defined,
    // unmount all the children. componentDidCatch will schedule an update to
    // re-render a fallback. This is temporary until we migrate everyone to
    // the new API.
    // TODO: Warn in a future release.
    nextChildren = null;

    if (enableProfilerTimer) {
      stopProfilerTimerIfRunning(workInProgress);
    }
  } else {
    {
      setCurrentPhase('render');
      nextChildren = instance.render();
      if (debugRenderPhaseSideEffects || debugRenderPhaseSideEffectsForStrictMode && workInProgress.mode & StrictMode) {
        instance.render();
      }
      setCurrentPhase(null);
    }
  }

  // React DevTools reads this flag.
  workInProgress.effectTag |= PerformedWork;
  if (current$$1 !== null && didCaptureError) {
    // If we're recovering from an error, reconcile without reusing any of
    // the existing children. Conceptually, the normal children and the children
    // that are shown on error are two different sets, so we shouldn't reuse
    // normal children even if their identities match.
    forceUnmountCurrentAndReconcile(current$$1, workInProgress, nextChildren, renderExpirationTime);
  } else {
    reconcileChildren(current$$1, workInProgress, nextChildren, renderExpirationTime);
  }

  // Memoize state using the values we just used to render.
  // TODO: Restructure so we never read values from the instance.
  workInProgress.memoizedState = instance.state;

  // The context might have changed so we need to recalculate it.
  if (hasContext) {
    invalidateContextProvider(workInProgress, Component, true);
  }

  return workInProgress.child;
}

function pushHostRootContext(workInProgress) {
  var root = workInProgress.stateNode;
  if (root.pendingContext) {
    pushTopLevelContextObject(workInProgress, root.pendingContext, root.pendingContext !== root.context);
  } else if (root.context) {
    // Should always be set
    pushTopLevelContextObject(workInProgress, root.context, false);
  }
  pushHostContainer(workInProgress, root.containerInfo);
}

function updateHostRoot(current$$1, workInProgress, renderExpirationTime) {
  pushHostRootContext(workInProgress);
  var updateQueue = workInProgress.updateQueue;
  (function () {
    if (!(updateQueue !== null)) {
      {
        throw ReactError(Error('If the root does not have an updateQueue, we should have already bailed out. This error is likely caused by a bug in React. Please file an issue.'));
      }
    }
  })();
  var nextProps = workInProgress.pendingProps;
  var prevState = workInProgress.memoizedState;
  var prevChildren = prevState !== null ? prevState.element : null;
  processUpdateQueue(workInProgress, updateQueue, nextProps, null, renderExpirationTime);
  var nextState = workInProgress.memoizedState;
  // Caution: React DevTools currently depends on this property
  // being called "element".
  var nextChildren = nextState.element;
  if (nextChildren === prevChildren) {
    // If the state is the same as before, that's a bailout because we had
    // no work that expires at this time.
    resetHydrationState();
    return bailoutOnAlreadyFinishedWork(current$$1, workInProgress, renderExpirationTime);
  }
  var root = workInProgress.stateNode;
  if ((current$$1 === null || current$$1.child === null) && root.hydrate && enterHydrationState(workInProgress)) {
    // If we don't have any current children this might be the first pass.
    // We always try to hydrate. If this isn't a hydration pass there won't
    // be any children to hydrate which is effectively the same thing as
    // not hydrating.

    // This is a bit of a hack. We track the host root as a placement to
    // know that we're currently in a mounting state. That way isMounted
    // works as expected. We must reset this before committing.
    // TODO: Delete this when we delete isMounted and findDOMNode.
    workInProgress.effectTag |= Placement;

    // Ensure that children mount into this root without tracking
    // side-effects. This ensures that we don't store Placement effects on
    // nodes that will be hydrated.
    workInProgress.child = mountChildFibers(workInProgress, null, nextChildren, renderExpirationTime);
  } else {
    // Otherwise reset hydration state in case we aborted and resumed another
    // root.
    reconcileChildren(current$$1, workInProgress, nextChildren, renderExpirationTime);
    resetHydrationState();
  }
  return workInProgress.child;
}

function updateHostComponent(current$$1, workInProgress, renderExpirationTime) {
  pushHostContext(workInProgress);

  if (current$$1 === null) {
    tryToClaimNextHydratableInstance(workInProgress);
  }

  var type = workInProgress.type;
  var nextProps = workInProgress.pendingProps;
  var prevProps = current$$1 !== null ? current$$1.memoizedProps : null;

  var nextChildren = nextProps.children;
  var isDirectTextChild = shouldSetTextContent(type, nextProps);

  if (isDirectTextChild) {
    // We special case a direct text child of a host node. This is a common
    // case. We won't handle it as a reified child. We will instead handle
    // this in the host environment that also have access to this prop. That
    // avoids allocating another HostText fiber and traversing it.
    nextChildren = null;
  } else if (prevProps !== null && shouldSetTextContent(type, prevProps)) {
    // If we're switching from a direct text child to a normal child, or to
    // empty, we need to schedule the text content to be reset.
    workInProgress.effectTag |= ContentReset;
  }

  markRef(current$$1, workInProgress);

  // Check the host config to see if the children are offscreen/hidden.
  if (workInProgress.mode & ConcurrentMode && renderExpirationTime !== Never && shouldDeprioritizeSubtree(type, nextProps)) {
    if (enableSchedulerTracing) {
      markSpawnedWork(Never);
    }
    // Schedule this fiber to re-render at offscreen priority. Then bailout.
    workInProgress.expirationTime = workInProgress.childExpirationTime = Never;
    return null;
  }

  reconcileChildren(current$$1, workInProgress, nextChildren, renderExpirationTime);
  return workInProgress.child;
}

function updateHostText(current$$1, workInProgress) {
  if (current$$1 === null) {
    tryToClaimNextHydratableInstance(workInProgress);
  }
  // Nothing to do here. This is terminal. We'll do the completion step
  // immediately after.
  return null;
}

function mountLazyComponent(_current, workInProgress, elementType, updateExpirationTime, renderExpirationTime) {
  if (_current !== null) {
    // An lazy component only mounts if it suspended inside a non-
    // concurrent tree, in an inconsistent state. We want to treat it like
    // a new mount, even though an empty version of it already committed.
    // Disconnect the alternate pointers.
    _current.alternate = null;
    workInProgress.alternate = null;
    // Since this is conceptually a new fiber, schedule a Placement effect
    workInProgress.effectTag |= Placement;
  }

  var props = workInProgress.pendingProps;
  // We can't start a User Timing measurement with correct label yet.
  // Cancel and resume right after we know the tag.
  cancelWorkTimer(workInProgress);
  var Component = readLazyComponentType(elementType);
  // Store the unwrapped component in the type.
  workInProgress.type = Component;
  var resolvedTag = workInProgress.tag = resolveLazyComponentTag(Component);
  startWorkTimer(workInProgress);
  var resolvedProps = resolveDefaultProps(Component, props);
  var child = void 0;
  switch (resolvedTag) {
    case FunctionComponent:
      {
        {
          validateFunctionComponentInDev(workInProgress, Component);
          workInProgress.type = Component = resolveFunctionForHotReloading(Component);
        }
        child = updateFunctionComponent(null, workInProgress, Component, resolvedProps, renderExpirationTime);
        break;
      }
    case ClassComponent:
      {
        {
          workInProgress.type = Component = resolveClassForHotReloading(Component);
        }
        child = updateClassComponent(null, workInProgress, Component, resolvedProps, renderExpirationTime);
        break;
      }
    case ForwardRef:
      {
        {
          workInProgress.type = Component = resolveForwardRefForHotReloading(Component);
        }
        child = updateForwardRef(null, workInProgress, Component, resolvedProps, renderExpirationTime);
        break;
      }
    case MemoComponent:
      {
        {
          if (workInProgress.type !== workInProgress.elementType) {
            var outerPropTypes = Component.propTypes;
            if (outerPropTypes) {
              checkPropTypes(outerPropTypes, resolvedProps, // Resolved for outer only
              'prop', getComponentName(Component), getCurrentFiberStackInDev);
            }
          }
        }
        child = updateMemoComponent(null, workInProgress, Component, resolveDefaultProps(Component.type, resolvedProps), // The inner type can have defaults too
        updateExpirationTime, renderExpirationTime);
        break;
      }
    default:
      {
        var hint = '';
        {
          if (Component !== null && typeof Component === 'object' && Component.$$typeof === REACT_LAZY_TYPE) {
            hint = ' Did you wrap a component in React.lazy() more than once?';
          }
        }
        // This message intentionally doesn't mention ForwardRef or MemoComponent
        // because the fact that it's a separate type of work is an
        // implementation detail.
        (function () {
          {
            {
              throw ReactError(Error('Element type is invalid. Received a promise that resolves to: ' + Component + '. Lazy element type must resolve to a class or function.' + hint));
            }
          }
        })();
      }
  }
  return child;
}

function mountIncompleteClassComponent(_current, workInProgress, Component, nextProps, renderExpirationTime) {
  if (_current !== null) {
    // An incomplete component only mounts if it suspended inside a non-
    // concurrent tree, in an inconsistent state. We want to treat it like
    // a new mount, even though an empty version of it already committed.
    // Disconnect the alternate pointers.
    _current.alternate = null;
    workInProgress.alternate = null;
    // Since this is conceptually a new fiber, schedule a Placement effect
    workInProgress.effectTag |= Placement;
  }

  // Promote the fiber to a class and try rendering again.
  workInProgress.tag = ClassComponent;

  // The rest of this function is a fork of `updateClassComponent`

  // Push context providers early to prevent context stack mismatches.
  // During mounting we don't know the child context yet as the instance doesn't exist.
  // We will invalidate the child context in finishClassComponent() right after rendering.
  var hasContext = void 0;
  if (isContextProvider(Component)) {
    hasContext = true;
    pushContextProvider(workInProgress);
  } else {
    hasContext = false;
  }
  prepareToReadContext(workInProgress, renderExpirationTime);

  constructClassInstance(workInProgress, Component, nextProps, renderExpirationTime);
  mountClassInstance(workInProgress, Component, nextProps, renderExpirationTime);

  return finishClassComponent(null, workInProgress, Component, true, hasContext, renderExpirationTime);
}

function mountIndeterminateComponent(_current, workInProgress, Component, renderExpirationTime) {
  if (_current !== null) {
    // An indeterminate component only mounts if it suspended inside a non-
    // concurrent tree, in an inconsistent state. We want to treat it like
    // a new mount, even though an empty version of it already committed.
    // Disconnect the alternate pointers.
    _current.alternate = null;
    workInProgress.alternate = null;
    // Since this is conceptually a new fiber, schedule a Placement effect
    workInProgress.effectTag |= Placement;
  }

  var props = workInProgress.pendingProps;
  var context = void 0;
  if (!disableLegacyContext) {
    var unmaskedContext = getUnmaskedContext(workInProgress, Component, false);
    context = getMaskedContext(workInProgress, unmaskedContext);
  }

  prepareToReadContext(workInProgress, renderExpirationTime);
  var value = void 0;

  {
    if (Component.prototype && typeof Component.prototype.render === 'function') {
      var componentName = getComponentName(Component) || 'Unknown';

      if (!didWarnAboutBadClass[componentName]) {
        warningWithoutStack$1(false, "The <%s /> component appears to have a render method, but doesn't extend React.Component. " + 'This is likely to cause errors. Change %s to extend React.Component instead.', componentName, componentName);
        didWarnAboutBadClass[componentName] = true;
      }
    }

    if (workInProgress.mode & StrictMode) {
      ReactStrictModeWarnings.recordLegacyContextWarning(workInProgress, null);
    }

    ReactCurrentOwner$3.current = workInProgress;
    value = renderWithHooks(null, workInProgress, Component, props, context, renderExpirationTime);
  }
  // React DevTools reads this flag.
  workInProgress.effectTag |= PerformedWork;

  if (typeof value === 'object' && value !== null && typeof value.render === 'function' && value.$$typeof === undefined) {
    {
      var _componentName = getComponentName(Component) || 'Unknown';
      if (!didWarnAboutModulePatternComponent[_componentName]) {
        warningWithoutStack$1(false, 'The <%s /> component appears to be a function component that returns a class instance. ' + 'Change %s to a class that extends React.Component instead. ' + "If you can't use a class try assigning the prototype on the function as a workaround. " + "`%s.prototype = React.Component.prototype`. Don't use an arrow function since it " + 'cannot be called with `new` by React.', _componentName, _componentName, _componentName);
        didWarnAboutModulePatternComponent[_componentName] = true;
      }
    }

    // Proceed under the assumption that this is a class instance
    workInProgress.tag = ClassComponent;

    // Throw out any hooks that were used.
    resetHooks();

    // Push context providers early to prevent context stack mismatches.
    // During mounting we don't know the child context yet as the instance doesn't exist.
    // We will invalidate the child context in finishClassComponent() right after rendering.
    var hasContext = false;
    if (isContextProvider(Component)) {
      hasContext = true;
      pushContextProvider(workInProgress);
    } else {
      hasContext = false;
    }

    workInProgress.memoizedState = value.state !== null && value.state !== undefined ? value.state : null;

    var getDerivedStateFromProps = Component.getDerivedStateFromProps;
    if (typeof getDerivedStateFromProps === 'function') {
      applyDerivedStateFromProps(workInProgress, Component, getDerivedStateFromProps, props);
    }

    adoptClassInstance(workInProgress, value);
    mountClassInstance(workInProgress, Component, props, renderExpirationTime);
    return finishClassComponent(null, workInProgress, Component, true, hasContext, renderExpirationTime);
  } else {
    // Proceed under the assumption that this is a function component
    workInProgress.tag = FunctionComponent;
    {
      if (disableLegacyContext && Component.contextTypes) {
        warningWithoutStack$1(false, '%s uses the legacy contextTypes API which is no longer supported. ' + 'Use React.createContext() with React.useContext() instead.', getComponentName(Component) || 'Unknown');
      }

      if (debugRenderPhaseSideEffects || debugRenderPhaseSideEffectsForStrictMode && workInProgress.mode & StrictMode) {
        // Only double-render components with Hooks
        if (workInProgress.memoizedState !== null) {
          value = renderWithHooks(null, workInProgress, Component, props, context, renderExpirationTime);
        }
      }
    }
    reconcileChildren(null, workInProgress, value, renderExpirationTime);
    {
      validateFunctionComponentInDev(workInProgress, Component);
    }
    return workInProgress.child;
  }
}

function validateFunctionComponentInDev(workInProgress, Component) {
  if (Component) {
    !!Component.childContextTypes ? warningWithoutStack$1(false, '%s(...): childContextTypes cannot be defined on a function component.', Component.displayName || Component.name || 'Component') : void 0;
  }
  if (workInProgress.ref !== null) {
    var info = '';
    var ownerName = getCurrentFiberOwnerNameInDevOrNull();
    if (ownerName) {
      info += '\n\nCheck the render method of `' + ownerName + '`.';
    }

    var warningKey = ownerName || workInProgress._debugID || '';
    var debugSource = workInProgress._debugSource;
    if (debugSource) {
      warningKey = debugSource.fileName + ':' + debugSource.lineNumber;
    }
    if (!didWarnAboutFunctionRefs[warningKey]) {
      didWarnAboutFunctionRefs[warningKey] = true;
      warning$1(false, 'Function components cannot be given refs. ' + 'Attempts to access this ref will fail. ' + 'Did you mean to use React.forwardRef()?%s', info);
    }
  }

  if (warnAboutDefaultPropsOnFunctionComponents && Component.defaultProps !== undefined) {
    var componentName = getComponentName(Component) || 'Unknown';

    if (!didWarnAboutDefaultPropsOnFunctionComponent[componentName]) {
      warningWithoutStack$1(false, '%s: Support for defaultProps will be removed from function components ' + 'in a future major release. Use JavaScript default parameters instead.', componentName);
      didWarnAboutDefaultPropsOnFunctionComponent[componentName] = true;
    }
  }

  if (typeof Component.getDerivedStateFromProps === 'function') {
    var _componentName2 = getComponentName(Component) || 'Unknown';

    if (!didWarnAboutGetDerivedStateOnFunctionComponent[_componentName2]) {
      warningWithoutStack$1(false, '%s: Function components do not support getDerivedStateFromProps.', _componentName2);
      didWarnAboutGetDerivedStateOnFunctionComponent[_componentName2] = true;
    }
  }

  if (typeof Component.contextType === 'object' && Component.contextType !== null) {
    var _componentName3 = getComponentName(Component) || 'Unknown';

    if (!didWarnAboutContextTypeOnFunctionComponent[_componentName3]) {
      warningWithoutStack$1(false, '%s: Function components do not support contextType.', _componentName3);
      didWarnAboutContextTypeOnFunctionComponent[_componentName3] = true;
    }
  }
}

// TODO: This is now an empty object. Should we just make it a boolean?
var SUSPENDED_MARKER = {};

function shouldRemainOnFallback(suspenseContext, current$$1, workInProgress) {
  // If the context is telling us that we should show a fallback, and we're not
  // already showing content, then we should show the fallback instead.
  return hasSuspenseContext(suspenseContext, ForceSuspenseFallback) && (current$$1 === null || current$$1.memoizedState !== null);
}

function updateSuspenseComponent(current$$1, workInProgress, renderExpirationTime) {
  var mode = workInProgress.mode;
  var nextProps = workInProgress.pendingProps;

  // This is used by DevTools to force a boundary to suspend.
  {
    if (shouldSuspend(workInProgress)) {
      workInProgress.effectTag |= DidCapture;
    }
  }

  var suspenseContext = suspenseStackCursor.current;

  var nextState = null;
  var nextDidTimeout = false;

  if ((workInProgress.effectTag & DidCapture) !== NoEffect || shouldRemainOnFallback(suspenseContext, current$$1, workInProgress)) {
    // Something in this boundary's subtree already suspended. Switch to
    // rendering the fallback children.
    nextState = SUSPENDED_MARKER;
    nextDidTimeout = true;
    workInProgress.effectTag &= ~DidCapture;
  } else {
    // Attempting the main content
    if (current$$1 === null || current$$1.memoizedState !== null) {
      // This is a new mount or this boundary is already showing a fallback state.
      // Mark this subtree context as having at least one invisible parent that could
      // handle the fallback state.
      // Boundaries without fallbacks or should be avoided are not considered since
      // they cannot handle preferred fallback states.
      if (nextProps.fallback !== undefined && nextProps.unstable_avoidThisFallback !== true) {
        suspenseContext = addSubtreeSuspenseContext(suspenseContext, InvisibleParentSuspenseContext);
      }
    }
  }

  suspenseContext = setDefaultShallowSuspenseContext(suspenseContext);

  pushSuspenseContext(workInProgress, suspenseContext);

  {
    if ('maxDuration' in nextProps) {
      if (!didWarnAboutMaxDuration) {
        didWarnAboutMaxDuration = true;
        warning$1(false, 'maxDuration has been removed from React. ' + 'Remove the maxDuration prop.');
      }
    }
  }

  // This next part is a bit confusing. If the children timeout, we switch to
  // showing the fallback children in place of the "primary" children.
  // However, we don't want to delete the primary children because then their
  // state will be lost (both the React state and the host state, e.g.
  // uncontrolled form inputs). Instead we keep them mounted and hide them.
  // Both the fallback children AND the primary children are rendered at the
  // same time. Once the primary children are un-suspended, we can delete
  // the fallback children — don't need to preserve their state.
  //
  // The two sets of children are siblings in the host environment, but
  // semantically, for purposes of reconciliation, they are two separate sets.
  // So we store them using two fragment fibers.
  //
  // However, we want to avoid allocating extra fibers for every placeholder.
  // They're only necessary when the children time out, because that's the
  // only time when both sets are mounted.
  //
  // So, the extra fragment fibers are only used if the children time out.
  // Otherwise, we render the primary children directly. This requires some
  // custom reconciliation logic to preserve the state of the primary
  // children. It's essentially a very basic form of re-parenting.

  // `child` points to the child fiber. In the normal case, this is the first
  // fiber of the primary children set. In the timed-out case, it's a
  // a fragment fiber containing the primary children.
  var child = void 0;
  // `next` points to the next fiber React should render. In the normal case,
  // it's the same as `child`: the first fiber of the primary children set.
  // In the timed-out case, it's a fragment fiber containing the *fallback*
  // children -- we skip over the primary children entirely.
  var next = void 0;
  if (current$$1 === null) {
    if (enableSuspenseServerRenderer) {
      // If we're currently hydrating, try to hydrate this boundary.
      // But only if this has a fallback.
      if (nextProps.fallback !== undefined) {
        tryToClaimNextHydratableInstance(workInProgress);
        // This could've changed the tag if this was a dehydrated suspense component.
        if (workInProgress.tag === DehydratedSuspenseComponent) {
          popSuspenseContext(workInProgress);
          return updateDehydratedSuspenseComponent(null, workInProgress, renderExpirationTime);
        }
      }
    }

    // This is the initial mount. This branch is pretty simple because there's
    // no previous state that needs to be preserved.
    if (nextDidTimeout) {
      // Mount separate fragments for primary and fallback children.
      var nextFallbackChildren = nextProps.fallback;
      var primaryChildFragment = createFiberFromFragment(null, mode, NoWork, null);
      primaryChildFragment.return = workInProgress;

      if ((workInProgress.mode & BatchedMode) === NoMode) {
        // Outside of batched mode, we commit the effects from the
        var progressedState = workInProgress.memoizedState;
        var progressedPrimaryChild = progressedState !== null ? workInProgress.child.child : workInProgress.child;
        primaryChildFragment.child = progressedPrimaryChild;
        var progressedChild = progressedPrimaryChild;
        while (progressedChild !== null) {
          progressedChild.return = primaryChildFragment;
          progressedChild = progressedChild.sibling;
        }
      }

      var fallbackChildFragment = createFiberFromFragment(nextFallbackChildren, mode, renderExpirationTime, null);
      fallbackChildFragment.return = workInProgress;
      primaryChildFragment.sibling = fallbackChildFragment;
      child = primaryChildFragment;
      // Skip the primary children, and continue working on the
      // fallback children.
      next = fallbackChildFragment;
    } else {
      // Mount the primary children without an intermediate fragment fiber.
      var nextPrimaryChildren = nextProps.children;
      child = next = mountChildFibers(workInProgress, null, nextPrimaryChildren, renderExpirationTime);
    }
  } else {
    // This is an update. This branch is more complicated because we need to
    // ensure the state of the primary children is preserved.
    var prevState = current$$1.memoizedState;
    var prevDidTimeout = prevState !== null;
    if (prevDidTimeout) {
      // The current tree already timed out. That means each child set is
      var currentPrimaryChildFragment = current$$1.child;
      var currentFallbackChildFragment = currentPrimaryChildFragment.sibling;
      if (nextDidTimeout) {
        // Still timed out. Reuse the current primary children by cloning
        // its fragment. We're going to skip over these entirely.
        var _nextFallbackChildren = nextProps.fallback;
        var _primaryChildFragment = createWorkInProgress(currentPrimaryChildFragment, currentPrimaryChildFragment.pendingProps, NoWork);
        _primaryChildFragment.return = workInProgress;

        if ((workInProgress.mode & BatchedMode) === NoMode) {
          // Outside of batched mode, we commit the effects from the
          var _progressedState = workInProgress.memoizedState;
          var _progressedPrimaryChild = _progressedState !== null ? workInProgress.child.child : workInProgress.child;
          if (_progressedPrimaryChild !== currentPrimaryChildFragment.child) {
            _primaryChildFragment.child = _progressedPrimaryChild;
            var _progressedChild = _progressedPrimaryChild;
            while (_progressedChild !== null) {
              _progressedChild.return = _primaryChildFragment;
              _progressedChild = _progressedChild.sibling;
            }
          }
        }

        // Because primaryChildFragment is a new fiber that we're inserting as the
        // parent of a new tree, we need to set its treeBaseDuration.
        if (enableProfilerTimer && workInProgress.mode & ProfileMode) {
          // treeBaseDuration is the sum of all the child tree base durations.
          var treeBaseDuration = 0;
          var hiddenChild = _primaryChildFragment.child;
          while (hiddenChild !== null) {
            treeBaseDuration += hiddenChild.treeBaseDuration;
            hiddenChild = hiddenChild.sibling;
          }
          _primaryChildFragment.treeBaseDuration = treeBaseDuration;
        }

        // Clone the fallback child fragment, too. These we'll continue
        // working on.
        var _fallbackChildFragment = createWorkInProgress(currentFallbackChildFragment, _nextFallbackChildren, currentFallbackChildFragment.expirationTime);
        _fallbackChildFragment.return = workInProgress;
        _primaryChildFragment.sibling = _fallbackChildFragment;
        child = _primaryChildFragment;
        _primaryChildFragment.childExpirationTime = NoWork;
        // Skip the primary children, and continue working on the
        // fallback children.
        next = _fallbackChildFragment;
      } else {
        // No longer suspended. Switch back to showing the primary children,
        // and remove the intermediate fragment fiber.
        var _nextPrimaryChildren = nextProps.children;
        var currentPrimaryChild = currentPrimaryChildFragment.child;
        var primaryChild = reconcileChildFibers(workInProgress, currentPrimaryChild, _nextPrimaryChildren, renderExpirationTime);

        // If this render doesn't suspend, we need to delete the fallback
        // children. Wait until the complete phase, after we've confirmed the
        // fallback is no longer needed.
        // TODO: Would it be better to store the fallback fragment on
        // the stateNode?

        // Continue rendering the children, like we normally do.
        child = next = primaryChild;
      }
    } else {
      // The current tree has not already timed out. That means the primary
      // children are not wrapped in a fragment fiber.
      var _currentPrimaryChild = current$$1.child;
      if (nextDidTimeout) {
        // Timed out. Wrap the children in a fragment fiber to keep them
        // separate from the fallback children.
        var _nextFallbackChildren2 = nextProps.fallback;
        var _primaryChildFragment2 = createFiberFromFragment(
        // It shouldn't matter what the pending props are because we aren't
        // going to render this fragment.
        null, mode, NoWork, null);
        _primaryChildFragment2.return = workInProgress;
        _primaryChildFragment2.child = _currentPrimaryChild;
        if (_currentPrimaryChild !== null) {
          _currentPrimaryChild.return = _primaryChildFragment2;
        }

        // Even though we're creating a new fiber, there are no new children,
        // because we're reusing an already mounted tree. So we don't need to
        // schedule a placement.
        // primaryChildFragment.effectTag |= Placement;

        if ((workInProgress.mode & BatchedMode) === NoMode) {
          // Outside of batched mode, we commit the effects from the
          var _progressedState2 = workInProgress.memoizedState;
          var _progressedPrimaryChild2 = _progressedState2 !== null ? workInProgress.child.child : workInProgress.child;
          _primaryChildFragment2.child = _progressedPrimaryChild2;
          var _progressedChild2 = _progressedPrimaryChild2;
          while (_progressedChild2 !== null) {
            _progressedChild2.return = _primaryChildFragment2;
            _progressedChild2 = _progressedChild2.sibling;
          }
        }

        // Because primaryChildFragment is a new fiber that we're inserting as the
        // parent of a new tree, we need to set its treeBaseDuration.
        if (enableProfilerTimer && workInProgress.mode & ProfileMode) {
          // treeBaseDuration is the sum of all the child tree base durations.
          var _treeBaseDuration = 0;
          var _hiddenChild = _primaryChildFragment2.child;
          while (_hiddenChild !== null) {
            _treeBaseDuration += _hiddenChild.treeBaseDuration;
            _hiddenChild = _hiddenChild.sibling;
          }
          _primaryChildFragment2.treeBaseDuration = _treeBaseDuration;
        }

        // Create a fragment from the fallback children, too.
        var _fallbackChildFragment2 = createFiberFromFragment(_nextFallbackChildren2, mode, renderExpirationTime, null);
        _fallbackChildFragment2.return = workInProgress;
        _primaryChildFragment2.sibling = _fallbackChildFragment2;
        _fallbackChildFragment2.effectTag |= Placement;
        child = _primaryChildFragment2;
        _primaryChildFragment2.childExpirationTime = NoWork;
        // Skip the primary children, and continue working on the
        // fallback children.
        next = _fallbackChildFragment2;
      } else {
        // Still haven't timed out.  Continue rendering the children, like we
        // normally do.
        var _nextPrimaryChildren2 = nextProps.children;
        next = child = reconcileChildFibers(workInProgress, _currentPrimaryChild, _nextPrimaryChildren2, renderExpirationTime);
      }
    }
    workInProgress.stateNode = current$$1.stateNode;
  }

  workInProgress.memoizedState = nextState;
  workInProgress.child = child;
  return next;
}

function retrySuspenseComponentWithoutHydrating(current$$1, workInProgress, renderExpirationTime) {
  // Detach from the current dehydrated boundary.
  current$$1.alternate = null;
  workInProgress.alternate = null;

  // Insert a deletion in the effect list.
  var returnFiber = workInProgress.return;
  (function () {
    if (!(returnFiber !== null)) {
      {
        throw ReactError(Error('Suspense boundaries are never on the root. This is probably a bug in React.'));
      }
    }
  })();
  var last = returnFiber.lastEffect;
  if (last !== null) {
    last.nextEffect = current$$1;
    returnFiber.lastEffect = current$$1;
  } else {
    returnFiber.firstEffect = returnFiber.lastEffect = current$$1;
  }
  current$$1.nextEffect = null;
  current$$1.effectTag = Deletion;

  popSuspenseContext(workInProgress);

  // Upgrade this work in progress to a real Suspense component.
  workInProgress.tag = SuspenseComponent;
  workInProgress.stateNode = null;
  workInProgress.memoizedState = null;
  // This is now an insertion.
  workInProgress.effectTag |= Placement;
  // Retry as a real Suspense component.
  return updateSuspenseComponent(null, workInProgress, renderExpirationTime);
}

function updateDehydratedSuspenseComponent(current$$1, workInProgress, renderExpirationTime) {
  pushSuspenseContext(workInProgress, setDefaultShallowSuspenseContext(suspenseStackCursor.current));
  var suspenseInstance = workInProgress.stateNode;
  if (current$$1 === null) {
    // During the first pass, we'll bail out and not drill into the children.
    // Instead, we'll leave the content in place and try to hydrate it later.
    if (isSuspenseInstanceFallback(suspenseInstance)) {
      // This is a client-only boundary. Since we won't get any content from the server
      // for this, we need to schedule that at a higher priority based on when it would
      // have timed out. In theory we could render it in this pass but it would have the
      // wrong priority associated with it and will prevent hydration of parent path.
      // Instead, we'll leave work left on it to render it in a separate commit.

      // TODO This time should be the time at which the server rendered response that is
      // a parent to this boundary was displayed. However, since we currently don't have
      // a protocol to transfer that time, we'll just estimate it by using the current
      // time. This will mean that Suspense timeouts are slightly shifted to later than
      // they should be.
      var serverDisplayTime = requestCurrentTime();
      // Schedule a normal pri update to render this content.
      workInProgress.expirationTime = computeAsyncExpiration(serverDisplayTime);
    } else {
      // We'll continue hydrating the rest at offscreen priority since we'll already
      // be showing the right content coming from the server, it is no rush.
      workInProgress.expirationTime = Never;
    }
    return null;
  }
  if ((workInProgress.effectTag & DidCapture) !== NoEffect) {
    // Something suspended. Leave the existing children in place.
    // TODO: In non-concurrent mode, should we commit the nodes we have hydrated so far?
    workInProgress.child = null;
    return null;
  }
  if (isSuspenseInstanceFallback(suspenseInstance)) {
    // This boundary is in a permanent fallback state. In this case, we'll never
    // get an update and we'll never be able to hydrate the final content. Let's just try the
    // client side render instead.
    return retrySuspenseComponentWithoutHydrating(current$$1, workInProgress, renderExpirationTime);
  }
  // We use childExpirationTime to indicate that a child might depend on context, so if
  // any context has changed, we need to treat is as if the input might have changed.
  var hasContextChanged$$1 = current$$1.childExpirationTime >= renderExpirationTime;
  if (didReceiveUpdate || hasContextChanged$$1) {
    // This boundary has changed since the first render. This means that we are now unable to
    // hydrate it. We might still be able to hydrate it using an earlier expiration time but
    // during this render we can't. Instead, we're going to delete the whole subtree and
    // instead inject a new real Suspense boundary to take its place, which may render content
    // or fallback. The real Suspense boundary will suspend for a while so we have some time
    // to ensure it can produce real content, but all state and pending events will be lost.
    return retrySuspenseComponentWithoutHydrating(current$$1, workInProgress, renderExpirationTime);
  } else if (isSuspenseInstancePending(suspenseInstance)) {
    // This component is still pending more data from the server, so we can't hydrate its
    // content. We treat it as if this component suspended itself. It might seem as if
    // we could just try to render it client-side instead. However, this will perform a
    // lot of unnecessary work and is unlikely to complete since it often will suspend
    // on missing data anyway. Additionally, the server might be able to render more
    // than we can on the client yet. In that case we'd end up with more fallback states
    // on the client than if we just leave it alone. If the server times out or errors
    // these should update this boundary to the permanent Fallback state instead.
    // Mark it as having captured (i.e. suspended).
    workInProgress.effectTag |= DidCapture;
    // Leave the children in place. I.e. empty.
    workInProgress.child = null;
    // Register a callback to retry this boundary once the server has sent the result.
    registerSuspenseInstanceRetry(suspenseInstance, retryTimedOutBoundary.bind(null, current$$1));
    return null;
  } else {
    // This is the first attempt.
    reenterHydrationStateFromDehydratedSuspenseInstance(workInProgress);
    var nextProps = workInProgress.pendingProps;
    var nextChildren = nextProps.children;
    workInProgress.child = mountChildFibers(workInProgress, null, nextChildren, renderExpirationTime);
    return workInProgress.child;
  }
}

function propagateSuspenseContextChange(workInProgress, firstChild, renderExpirationTime) {
  // Mark any Suspense boundaries with fallbacks as having work to do.
  // If they were previously forced into fallbacks, they may now be able
  // to unblock.
  var node = firstChild;
  while (node !== null) {
    if (node.tag === SuspenseComponent) {
      var state = node.memoizedState;
      if (state !== null) {
        if (node.expirationTime < renderExpirationTime) {
          node.expirationTime = renderExpirationTime;
        }
        var alternate = node.alternate;
        if (alternate !== null && alternate.expirationTime < renderExpirationTime) {
          alternate.expirationTime = renderExpirationTime;
        }
        scheduleWorkOnParentPath(node.return, renderExpirationTime);
      }
    } else if (node.child !== null) {
      node.child.return = node;
      node = node.child;
      continue;
    }
    if (node === workInProgress) {
      return;
    }
    while (node.sibling === null) {
      if (node.return === null || node.return === workInProgress) {
        return;
      }
      node = node.return;
    }
    node.sibling.return = node.return;
    node = node.sibling;
  }
}

function findLastContentRow(firstChild) {
  // This is going to find the last row among these children that is already
  // showing content on the screen, as opposed to being in fallback state or
  // new. If a row has multiple Suspense boundaries, any of them being in the
  // fallback state, counts as the whole row being in a fallback state.
  // Note that the "rows" will be workInProgress, but any nested children
  // will still be current since we haven't rendered them yet. The mounted
  // order may not be the same as the new order. We use the new order.
  var row = firstChild;
  var lastContentRow = null;
  while (row !== null) {
    var currentRow = row.alternate;
    // New rows can't be content rows.
    if (currentRow !== null && findFirstSuspended(currentRow) === null) {
      lastContentRow = row;
    }
    row = row.sibling;
  }
  return lastContentRow;
}

function validateRevealOrder(revealOrder) {
  {
    if (revealOrder !== undefined && revealOrder !== 'forwards' && revealOrder !== 'backwards' && revealOrder !== 'together' && !didWarnAboutRevealOrder[revealOrder]) {
      didWarnAboutRevealOrder[revealOrder] = true;
      if (typeof revealOrder === 'string') {
        switch (revealOrder.toLowerCase()) {
          case 'together':
          case 'forwards':
          case 'backwards':
            {
              warning$1(false, '"%s" is not a valid value for revealOrder on <SuspenseList />. ' + 'Use lowercase "%s" instead.', revealOrder, revealOrder.toLowerCase());
              break;
            }
          case 'forward':
          case 'backward':
            {
              warning$1(false, '"%s" is not a valid value for revealOrder on <SuspenseList />. ' + 'React uses the -s suffix in the spelling. Use "%ss" instead.', revealOrder, revealOrder.toLowerCase());
              break;
            }
          default:
            warning$1(false, '"%s" is not a supported revealOrder on <SuspenseList />. ' + 'Did you mean "together", "forwards" or "backwards"?', revealOrder);
            break;
        }
      } else {
        warning$1(false, '%s is not a supported value for revealOrder on <SuspenseList />. ' + 'Did you mean "together", "forwards" or "backwards"?', revealOrder);
      }
    }
  }
}

function validateTailOptions(tailMode, revealOrder) {
  {
    if (tailMode !== undefined && !didWarnAboutTailOptions[tailMode]) {
      if (tailMode !== 'collapsed' && tailMode !== 'hidden') {
        didWarnAboutTailOptions[tailMode] = true;
        warning$1(false, '"%s" is not a supported value for tail on <SuspenseList />. ' + 'Did you mean "collapsed" or "hidden"?', tailMode);
      } else if (revealOrder !== 'forwards' && revealOrder !== 'backwards') {
        didWarnAboutTailOptions[tailMode] = true;
        warning$1(false, '<SuspenseList tail="%s" /> is only valid if revealOrder is ' + '"forwards" or "backwards". ' + 'Did you mean to specify revealOrder="forwards"?', tailMode);
      }
    }
  }
}

function validateSuspenseListNestedChild(childSlot, index) {
  {
    var isArray = Array.isArray(childSlot);
    var isIterable = !isArray && typeof getIteratorFn(childSlot) === 'function';
    if (isArray || isIterable) {
      var type = isArray ? 'array' : 'iterable';
      warning$1(false, 'A nested %s was passed to row #%s in <SuspenseList />. Wrap it in ' + 'an additional SuspenseList to configure its revealOrder: ' + '<SuspenseList revealOrder=...> ... ' + '<SuspenseList revealOrder=...>{%s}</SuspenseList> ... ' + '</SuspenseList>', type, index, type);
      return false;
    }
  }
  return true;
}

function validateSuspenseListChildren(children, revealOrder) {
  {
    if ((revealOrder === 'forwards' || revealOrder === 'backwards') && children !== undefined && children !== null && children !== false) {
      if (Array.isArray(children)) {
        for (var i = 0; i < children.length; i++) {
          if (!validateSuspenseListNestedChild(children[i], i)) {
            return;
          }
        }
      } else {
        var iteratorFn = getIteratorFn(children);
        if (typeof iteratorFn === 'function') {
          var childrenIterator = iteratorFn.call(children);
          if (childrenIterator) {
            var step = childrenIterator.next();
            var _i = 0;
            for (; !step.done; step = childrenIterator.next()) {
              if (!validateSuspenseListNestedChild(step.value, _i)) {
                return;
              }
              _i++;
            }
          }
        } else {
          warning$1(false, 'A single row was passed to a <SuspenseList revealOrder="%s" />. ' + 'This is not useful since it needs multiple rows. ' + 'Did you mean to pass multiple children or an array?', revealOrder);
        }
      }
    }
  }
}

function initSuspenseListRenderState(workInProgress, isBackwards, tail, lastContentRow, tailMode) {
  var renderState = workInProgress.memoizedState;
  if (renderState === null) {
    workInProgress.memoizedState = {
      isBackwards: isBackwards,
      rendering: null,
      last: lastContentRow,
      tail: tail,
      tailExpiration: 0,
      tailMode: tailMode
    };
  } else {
    // We can reuse the existing object from previous renders.
    renderState.isBackwards = isBackwards;
    renderState.rendering = null;
    renderState.last = lastContentRow;
    renderState.tail = tail;
    renderState.tailExpiration = 0;
    renderState.tailMode = tailMode;
  }
}

// This can end up rendering this component multiple passes.
// The first pass splits the children fibers into two sets. A head and tail.
// We first render the head. If anything is in fallback state, we do another
// pass through beginWork to rerender all children (including the tail) with
// the force suspend context. If the first render didn't have anything in
// in fallback state. Then we render each row in the tail one-by-one.
// That happens in the completeWork phase without going back to beginWork.
function updateSuspenseListComponent(current$$1, workInProgress, renderExpirationTime) {
  var nextProps = workInProgress.pendingProps;
  var revealOrder = nextProps.revealOrder;
  var tailMode = nextProps.tail;
  var newChildren = nextProps.children;

  validateRevealOrder(revealOrder);
  validateTailOptions(tailMode, revealOrder);
  validateSuspenseListChildren(newChildren, revealOrder);

  reconcileChildren(current$$1, workInProgress, newChildren, renderExpirationTime);

  var suspenseContext = suspenseStackCursor.current;

  var shouldForceFallback = hasSuspenseContext(suspenseContext, ForceSuspenseFallback);
  if (shouldForceFallback) {
    suspenseContext = setShallowSuspenseContext(suspenseContext, ForceSuspenseFallback);
    workInProgress.effectTag |= DidCapture;
  } else {
    var didSuspendBefore = current$$1 !== null && (current$$1.effectTag & DidCapture) !== NoEffect;
    if (didSuspendBefore) {
      // If we previously forced a fallback, we need to schedule work
      // on any nested boundaries to let them know to try to render
      // again. This is the same as context updating.
      propagateSuspenseContextChange(workInProgress, workInProgress.child, renderExpirationTime);
    }
    suspenseContext = setDefaultShallowSuspenseContext(suspenseContext);
  }
  pushSuspenseContext(workInProgress, suspenseContext);

  if ((workInProgress.mode & BatchedMode) === NoMode) {
    // Outside of batched mode, SuspenseList doesn't work so we just
    // use make it a noop by treating it as the default revealOrder.
    workInProgress.memoizedState = null;
  } else {
    switch (revealOrder) {
      case 'forwards':
        {
          var lastContentRow = findLastContentRow(workInProgress.child);
          var tail = void 0;
          if (lastContentRow === null) {
            // The whole list is part of the tail.
            // TODO: We could fast path by just rendering the tail now.
            tail = workInProgress.child;
            workInProgress.child = null;
          } else {
            // Disconnect the tail rows after the content row.
            // We're going to render them separately later.
            tail = lastContentRow.sibling;
            lastContentRow.sibling = null;
          }
          initSuspenseListRenderState(workInProgress, false, // isBackwards
          tail, lastContentRow, tailMode);
          break;
        }
      case 'backwards':
        {
          // We're going to find the first row that has existing content.
          // At the same time we're going to reverse the list of everything
          // we pass in the meantime. That's going to be our tail in reverse
          // order.
          var _tail = null;
          var row = workInProgress.child;
          workInProgress.child = null;
          while (row !== null) {
            var currentRow = row.alternate;
            // New rows can't be content rows.
            if (currentRow !== null && findFirstSuspended(currentRow) === null) {
              // This is the beginning of the main content.
              workInProgress.child = row;
              break;
            }
            var nextRow = row.sibling;
            row.sibling = _tail;
            _tail = row;
            row = nextRow;
          }
          // TODO: If workInProgress.child is null, we can continue on the tail immediately.
          initSuspenseListRenderState(workInProgress, true, // isBackwards
          _tail, null, // last
          tailMode);
          break;
        }
      case 'together':
        {
          initSuspenseListRenderState(workInProgress, false, // isBackwards
          null, // tail
          null, // last
          undefined);
          break;
        }
      default:
        {
          // The default reveal order is the same as not having
          // a boundary.
          workInProgress.memoizedState = null;
        }
    }
  }
  return workInProgress.child;
}

function updatePortalComponent(current$$1, workInProgress, renderExpirationTime) {
  pushHostContainer(workInProgress, workInProgress.stateNode.containerInfo);
  var nextChildren = workInProgress.pendingProps;
  if (current$$1 === null) {
    // Portals are special because we don't append the children during mount
    // but at commit. Therefore we need to track insertions which the normal
    // flow doesn't do during mount. This doesn't happen at the root because
    // the root always starts with a "current" with a null child.
    // TODO: Consider unifying this with how the root works.
    workInProgress.child = reconcileChildFibers(workInProgress, null, nextChildren, renderExpirationTime);
  } else {
    reconcileChildren(current$$1, workInProgress, nextChildren, renderExpirationTime);
  }
  return workInProgress.child;
}

function updateContextProvider(current$$1, workInProgress, renderExpirationTime) {
  var providerType = workInProgress.type;
  var context = providerType._context;

  var newProps = workInProgress.pendingProps;
  var oldProps = workInProgress.memoizedProps;

  var newValue = newProps.value;

  {
    var providerPropTypes = workInProgress.type.propTypes;

    if (providerPropTypes) {
      checkPropTypes(providerPropTypes, newProps, 'prop', 'Context.Provider', getCurrentFiberStackInDev);
    }
  }

  pushProvider(workInProgress, newValue);

  if (oldProps !== null) {
    var oldValue = oldProps.value;
    var changedBits = calculateChangedBits(context, newValue, oldValue);
    if (changedBits === 0) {
      // No change. Bailout early if children are the same.
      if (oldProps.children === newProps.children && !hasContextChanged()) {
        return bailoutOnAlreadyFinishedWork(current$$1, workInProgress, renderExpirationTime);
      }
    } else {
      // The context value changed. Search for matching consumers and schedule
      // them to update.
      propagateContextChange(workInProgress, context, changedBits, renderExpirationTime);
    }
  }

  var newChildren = newProps.children;
  reconcileChildren(current$$1, workInProgress, newChildren, renderExpirationTime);
  return workInProgress.child;
}

var hasWarnedAboutUsingContextAsConsumer = false;

function updateContextConsumer(current$$1, workInProgress, renderExpirationTime) {
  var context = workInProgress.type;
  // The logic below for Context differs depending on PROD or DEV mode. In
  // DEV mode, we create a separate object for Context.Consumer that acts
  // like a proxy to Context. This proxy object adds unnecessary code in PROD
  // so we use the old behaviour (Context.Consumer references Context) to
  // reduce size and overhead. The separate object references context via
  // a property called "_context", which also gives us the ability to check
  // in DEV mode if this property exists or not and warn if it does not.
  {
    if (context._context === undefined) {
      // This may be because it's a Context (rather than a Consumer).
      // Or it may be because it's older React where they're the same thing.
      // We only want to warn if we're sure it's a new React.
      if (context !== context.Consumer) {
        if (!hasWarnedAboutUsingContextAsConsumer) {
          hasWarnedAboutUsingContextAsConsumer = true;
          warning$1(false, 'Rendering <Context> directly is not supported and will be removed in ' + 'a future major release. Did you mean to render <Context.Consumer> instead?');
        }
      }
    } else {
      context = context._context;
    }
  }
  var newProps = workInProgress.pendingProps;
  var render = newProps.children;

  {
    !(typeof render === 'function') ? warningWithoutStack$1(false, 'A context consumer was rendered with multiple children, or a child ' + "that isn't a function. A context consumer expects a single child " + 'that is a function. If you did pass a function, make sure there ' + 'is no trailing or leading whitespace around it.') : void 0;
  }

  prepareToReadContext(workInProgress, renderExpirationTime);
  var newValue = readContext(context, newProps.unstable_observedBits);
  var newChildren = void 0;
  {
    ReactCurrentOwner$3.current = workInProgress;
    setCurrentPhase('render');
    newChildren = render(newValue);
    setCurrentPhase(null);
  }

  // React DevTools reads this flag.
  workInProgress.effectTag |= PerformedWork;
  reconcileChildren(current$$1, workInProgress, newChildren, renderExpirationTime);
  return workInProgress.child;
}

function updateFundamentalComponent$1(current$$1, workInProgress, renderExpirationTime) {
  var fundamentalImpl = workInProgress.type.impl;
  if (fundamentalImpl.reconcileChildren === false) {
    return null;
  }
  var nextProps = workInProgress.pendingProps;
  var nextChildren = nextProps.children;

  reconcileChildren(current$$1, workInProgress, nextChildren, renderExpirationTime);
  return workInProgress.child;
}

function markWorkInProgressReceivedUpdate() {
  didReceiveUpdate = true;
}

function bailoutOnAlreadyFinishedWork(current$$1, workInProgress, renderExpirationTime) {
  cancelWorkTimer(workInProgress);

  if (current$$1 !== null) {
    // Reuse previous dependencies
    workInProgress.dependencies = current$$1.dependencies;
  }

  if (enableProfilerTimer) {
    // Don't update "base" render times for bailouts.
    stopProfilerTimerIfRunning(workInProgress);
  }

  // Check if the children have any pending work.
  var childExpirationTime = workInProgress.childExpirationTime;
  if (childExpirationTime < renderExpirationTime) {
    // The children don't have any work either. We can skip them.
    // TODO: Once we add back resuming, we should check if the children are
    // a work-in-progress set. If so, we need to transfer their effects.
    return null;
  } else {
    // This fiber doesn't have work, but its subtree does. Clone the child
    // fibers and continue.
    cloneChildFibers(current$$1, workInProgress);
    return workInProgress.child;
  }
}

function remountFiber(current$$1, oldWorkInProgress, newWorkInProgress) {
  {
    var returnFiber = oldWorkInProgress.return;
    if (returnFiber === null) {
      throw new Error('Cannot swap the root fiber.');
    }

    // Disconnect from the old current.
    // It will get deleted.
    current$$1.alternate = null;
    oldWorkInProgress.alternate = null;

    // Connect to the new tree.
    newWorkInProgress.index = oldWorkInProgress.index;
    newWorkInProgress.sibling = oldWorkInProgress.sibling;
    newWorkInProgress.return = oldWorkInProgress.return;
    newWorkInProgress.ref = oldWorkInProgress.ref;

    // Replace the child/sibling pointers above it.
    if (oldWorkInProgress === returnFiber.child) {
      returnFiber.child = newWorkInProgress;
    } else {
      var prevSibling = returnFiber.child;
      if (prevSibling === null) {
        throw new Error('Expected parent to have a child.');
      }
      while (prevSibling.sibling !== oldWorkInProgress) {
        prevSibling = prevSibling.sibling;
        if (prevSibling === null) {
          throw new Error('Expected to find the previous sibling.');
        }
      }
      prevSibling.sibling = newWorkInProgress;
    }

    // Delete the old fiber and place the new one.
    // Since the old fiber is disconnected, we have to schedule it manually.
    var last = returnFiber.lastEffect;
    if (last !== null) {
      last.nextEffect = current$$1;
      returnFiber.lastEffect = current$$1;
    } else {
      returnFiber.firstEffect = returnFiber.lastEffect = current$$1;
    }
    current$$1.nextEffect = null;
    current$$1.effectTag = Deletion;

    newWorkInProgress.effectTag |= Placement;

    // Restart work from the new fiber.
    return newWorkInProgress;
  }
}

function beginWork$1(current$$1, workInProgress, renderExpirationTime) {
  var updateExpirationTime = workInProgress.expirationTime;

  {
    if (workInProgress._debugNeedsRemount && current$$1 !== null) {
      // This will restart the begin phase with a new fiber.
      return remountFiber(current$$1, workInProgress, createFiberFromTypeAndProps(workInProgress.type, workInProgress.key, workInProgress.pendingProps, workInProgress._debugOwner || null, workInProgress.mode, workInProgress.expirationTime));
    }
  }

  if (current$$1 !== null) {
    var oldProps = current$$1.memoizedProps;
    var newProps = workInProgress.pendingProps;

    if (oldProps !== newProps || hasContextChanged() || (
    // Force a re-render if the implementation changed due to hot reload:
    workInProgress.type !== current$$1.type)) {
      // If props or context changed, mark the fiber as having performed work.
      // This may be unset if the props are determined to be equal later (memo).
      didReceiveUpdate = true;
    } else if (updateExpirationTime < renderExpirationTime) {
      didReceiveUpdate = false;
      // This fiber does not have any pending work. Bailout without entering
      // the begin phase. There's still some bookkeeping we that needs to be done
      // in this optimized path, mostly pushing stuff onto the stack.
      switch (workInProgress.tag) {
        case HostRoot:
          pushHostRootContext(workInProgress);
          resetHydrationState();
          break;
        case HostComponent:
          pushHostContext(workInProgress);
          if (workInProgress.mode & ConcurrentMode && renderExpirationTime !== Never && shouldDeprioritizeSubtree(workInProgress.type, newProps)) {
            if (enableSchedulerTracing) {
              markSpawnedWork(Never);
            }
            // Schedule this fiber to re-render at offscreen priority. Then bailout.
            workInProgress.expirationTime = workInProgress.childExpirationTime = Never;
            return null;
          }
          break;
        case ClassComponent:
          {
            var Component = workInProgress.type;
            if (isContextProvider(Component)) {
              pushContextProvider(workInProgress);
            }
            break;
          }
        case HostPortal:
          pushHostContainer(workInProgress, workInProgress.stateNode.containerInfo);
          break;
        case ContextProvider:
          {
            var newValue = workInProgress.memoizedProps.value;
            pushProvider(workInProgress, newValue);
            break;
          }
        case Profiler:
          if (enableProfilerTimer) {
            workInProgress.effectTag |= Update;
          }
          break;
        case SuspenseComponent:
          {
            var state = workInProgress.memoizedState;
            var didTimeout = state !== null;
            if (didTimeout) {
              // If this boundary is currently timed out, we need to decide
              // whether to retry the primary children, or to skip over it and
              // go straight to the fallback. Check the priority of the primary
              var primaryChildFragment = workInProgress.child;
              var primaryChildExpirationTime = primaryChildFragment.childExpirationTime;
              if (primaryChildExpirationTime !== NoWork && primaryChildExpirationTime >= renderExpirationTime) {
                // The primary children have pending work. Use the normal path
                // to attempt to render the primary children again.
                return updateSuspenseComponent(current$$1, workInProgress, renderExpirationTime);
              } else {
                pushSuspenseContext(workInProgress, setDefaultShallowSuspenseContext(suspenseStackCursor.current));
                // The primary children do not have pending work with sufficient
                // priority. Bailout.
                var child = bailoutOnAlreadyFinishedWork(current$$1, workInProgress, renderExpirationTime);
                if (child !== null) {
                  // The fallback children have pending work. Skip over the
                  // primary children and work on the fallback.
                  return child.sibling;
                } else {
                  return null;
                }
              }
            } else {
              pushSuspenseContext(workInProgress, setDefaultShallowSuspenseContext(suspenseStackCursor.current));
            }
            break;
          }
        case DehydratedSuspenseComponent:
          {
            if (enableSuspenseServerRenderer) {
              pushSuspenseContext(workInProgress, setDefaultShallowSuspenseContext(suspenseStackCursor.current));
              // We know that this component will suspend again because if it has
              // been unsuspended it has committed as a regular Suspense component.
              // If it needs to be retried, it should have work scheduled on it.
              workInProgress.effectTag |= DidCapture;
            }
            break;
          }
        case SuspenseListComponent:
          {
            var didSuspendBefore = (current$$1.effectTag & DidCapture) !== NoEffect;

            var hasChildWork = workInProgress.childExpirationTime >= renderExpirationTime;

            if (didSuspendBefore) {
              if (hasChildWork) {
                // If something was in fallback state last time, and we have all the
                // same children then we're still in progressive loading state.
                // Something might get unblocked by state updates or retries in the
                // tree which will affect the tail. So we need to use the normal
                // path to compute the correct tail.
                return updateSuspenseListComponent(current$$1, workInProgress, renderExpirationTime);
              }
              // If none of the children had any work, that means that none of
              // them got retried so they'll still be blocked in the same way
              // as before. We can fast bail out.
              workInProgress.effectTag |= DidCapture;
            }

            // If nothing suspended before and we're rendering the same children,
            // then the tail doesn't matter. Anything new that suspends will work
            // in the "together" mode, so we can continue from the state we had.
            var renderState = workInProgress.memoizedState;
            if (renderState !== null) {
              // Reset to the "together" mode in case we've started a different
              // update in the past but didn't complete it.
              renderState.rendering = null;
              renderState.tail = null;
            }
            pushSuspenseContext(workInProgress, suspenseStackCursor.current);

            if (hasChildWork) {
              break;
            } else {
              // If none of the children had any work, that means that none of
              // them got retried so they'll still be blocked in the same way
              // as before. We can fast bail out.
              return null;
            }
          }
      }
      return bailoutOnAlreadyFinishedWork(current$$1, workInProgress, renderExpirationTime);
    }
  } else {
    didReceiveUpdate = false;
  }

  // Before entering the begin phase, clear the expiration time.
  workInProgress.expirationTime = NoWork;

  switch (workInProgress.tag) {
    case IndeterminateComponent:
      {
        return mountIndeterminateComponent(current$$1, workInProgress, workInProgress.type, renderExpirationTime);
      }
    case LazyComponent:
      {
        var elementType = workInProgress.elementType;
        return mountLazyComponent(current$$1, workInProgress, elementType, updateExpirationTime, renderExpirationTime);
      }
    case FunctionComponent:
      {
        var _Component = workInProgress.type;
        var unresolvedProps = workInProgress.pendingProps;
        var resolvedProps = workInProgress.elementType === _Component ? unresolvedProps : resolveDefaultProps(_Component, unresolvedProps);
        return updateFunctionComponent(current$$1, workInProgress, _Component, resolvedProps, renderExpirationTime);
      }
    case ClassComponent:
      {
        var _Component2 = workInProgress.type;
        var _unresolvedProps = workInProgress.pendingProps;
        var _resolvedProps = workInProgress.elementType === _Component2 ? _unresolvedProps : resolveDefaultProps(_Component2, _unresolvedProps);
        return updateClassComponent(current$$1, workInProgress, _Component2, _resolvedProps, renderExpirationTime);
      }
    case HostRoot:
      return updateHostRoot(current$$1, workInProgress, renderExpirationTime);
    case HostComponent:
      return updateHostComponent(current$$1, workInProgress, renderExpirationTime);
    case HostText:
      return updateHostText(current$$1, workInProgress);
    case SuspenseComponent:
      return updateSuspenseComponent(current$$1, workInProgress, renderExpirationTime);
    case HostPortal:
      return updatePortalComponent(current$$1, workInProgress, renderExpirationTime);
    case ForwardRef:
      {
        var type = workInProgress.type;
        var _unresolvedProps2 = workInProgress.pendingProps;
        var _resolvedProps2 = workInProgress.elementType === type ? _unresolvedProps2 : resolveDefaultProps(type, _unresolvedProps2);
        return updateForwardRef(current$$1, workInProgress, type, _resolvedProps2, renderExpirationTime);
      }
    case Fragment:
      return updateFragment(current$$1, workInProgress, renderExpirationTime);
    case Mode:
      return updateMode(current$$1, workInProgress, renderExpirationTime);
    case Profiler:
      return updateProfiler(current$$1, workInProgress, renderExpirationTime);
    case ContextProvider:
      return updateContextProvider(current$$1, workInProgress, renderExpirationTime);
    case ContextConsumer:
      return updateContextConsumer(current$$1, workInProgress, renderExpirationTime);
    case MemoComponent:
      {
        var _type2 = workInProgress.type;
        var _unresolvedProps3 = workInProgress.pendingProps;
        // Resolve outer props first, then resolve inner props.
        var _resolvedProps3 = resolveDefaultProps(_type2, _unresolvedProps3);
        {
          if (workInProgress.type !== workInProgress.elementType) {
            var outerPropTypes = _type2.propTypes;
            if (outerPropTypes) {
              checkPropTypes(outerPropTypes, _resolvedProps3, // Resolved for outer only
              'prop', getComponentName(_type2), getCurrentFiberStackInDev);
            }
          }
        }
        _resolvedProps3 = resolveDefaultProps(_type2.type, _resolvedProps3);
        return updateMemoComponent(current$$1, workInProgress, _type2, _resolvedProps3, updateExpirationTime, renderExpirationTime);
      }
    case SimpleMemoComponent:
      {
        return updateSimpleMemoComponent(current$$1, workInProgress, workInProgress.type, workInProgress.pendingProps, updateExpirationTime, renderExpirationTime);
      }
    case IncompleteClassComponent:
      {
        var _Component3 = workInProgress.type;
        var _unresolvedProps4 = workInProgress.pendingProps;
        var _resolvedProps4 = workInProgress.elementType === _Component3 ? _unresolvedProps4 : resolveDefaultProps(_Component3, _unresolvedProps4);
        return mountIncompleteClassComponent(current$$1, workInProgress, _Component3, _resolvedProps4, renderExpirationTime);
      }
    case DehydratedSuspenseComponent:
      {
        if (enableSuspenseServerRenderer) {
          return updateDehydratedSuspenseComponent(current$$1, workInProgress, renderExpirationTime);
        }
        break;
      }
    case SuspenseListComponent:
      {
        return updateSuspenseListComponent(current$$1, workInProgress, renderExpirationTime);
      }
    case FundamentalComponent:
      {
        if (enableFundamentalAPI) {
          return updateFundamentalComponent$1(current$$1, workInProgress, renderExpirationTime);
        }
        break;
      }
  }
  (function () {
    {
      {
        throw ReactError(Error('Unknown unit of work tag. This error is likely caused by a bug in React. Please file an issue.'));
      }
    }
  })();
}

function createFundamentalStateInstance(currentFiber, props, impl, state) {
  return {
    currentFiber: currentFiber,
    impl: impl,
    instance: null,
    prevProps: null,
    props: props,
    state: state
  };
}

var emptyObject = {};
var isArray$2 = Array.isArray;

function markUpdate(workInProgress) {
  // Tag the fiber with an update effect. This turns a Placement into
  // a PlacementAndUpdate.
  workInProgress.effectTag |= Update;
}

function markRef$1(workInProgress) {
  workInProgress.effectTag |= Ref;
}

var appendAllChildren = void 0;
var updateHostContainer = void 0;
var updateHostComponent$1 = void 0;
var updateHostText$1 = void 0;
if (supportsMutation) {
  // Mutation mode

  appendAllChildren = function (parent, workInProgress, needsVisibilityToggle, isHidden) {
    // We only have the top Fiber that was created but we need recurse down its
    // children to find all the terminal nodes.
    var node = workInProgress.child;
    while (node !== null) {
      if (node.tag === HostComponent || node.tag === HostText) {
        appendInitialChild(parent, node.stateNode);
      } else if (node.tag === FundamentalComponent) {
        appendInitialChild(parent, node.stateNode.instance);
      } else if (node.tag === HostPortal) {
        // If we have a portal child, then we don't want to traverse
        // down its children. Instead, we'll get insertions from each child in
        // the portal directly.
      } else if (node.child !== null) {
        node.child.return = node;
        node = node.child;
        continue;
      }
      if (node === workInProgress) {
        return;
      }
      while (node.sibling === null) {
        if (node.return === null || node.return === workInProgress) {
          return;
        }
        node = node.return;
      }
      node.sibling.return = node.return;
      node = node.sibling;
    }
  };

  updateHostContainer = function (workInProgress) {
    // Noop
  };
  updateHostComponent$1 = function (current, workInProgress, type, newProps, rootContainerInstance) {
    // If we have an alternate, that means this is an update and we need to
    // schedule a side-effect to do the updates.
    var oldProps = current.memoizedProps;
    if (oldProps === newProps) {
      // In mutation mode, this is sufficient for a bailout because
      // we won't touch this node even if children changed.
      return;
    }

    // If we get updated because one of our children updated, we don't
    // have newProps so we'll have to reuse them.
    // TODO: Split the update API as separate for the props vs. children.
    // Even better would be if children weren't special cased at all tho.
    var instance = workInProgress.stateNode;
    var currentHostContext = getHostContext();
    // TODO: Experiencing an error where oldProps is null. Suggests a host
    // component is hitting the resume path. Figure out why. Possibly
    // related to `hidden`.
    var updatePayload = prepareUpdate(instance, type, oldProps, newProps, rootContainerInstance, currentHostContext);
    // TODO: Type this specific to this type of component.
    workInProgress.updateQueue = updatePayload;
    // If the update payload indicates that there is a change or if there
    // is a new ref we mark this as an update. All the work is done in commitWork.
    if (updatePayload) {
      markUpdate(workInProgress);
    }
  };
  updateHostText$1 = function (current, workInProgress, oldText, newText) {
    // If the text differs, mark it as an update. All the work in done in commitWork.
    if (oldText !== newText) {
      markUpdate(workInProgress);
    }
  };
} else if (supportsPersistence) {
  // Persistent host tree mode

  appendAllChildren = function (parent, workInProgress, needsVisibilityToggle, isHidden) {
    // We only have the top Fiber that was created but we need recurse down its
    // children to find all the terminal nodes.
    var node = workInProgress.child;
    while (node !== null) {
      // eslint-disable-next-line no-labels
      branches: if (node.tag === HostComponent) {
        var instance = node.stateNode;
        if (needsVisibilityToggle && isHidden) {
          // This child is inside a timed out tree. Hide it.
          var props = node.memoizedProps;
          var type = node.type;
          instance = cloneHiddenInstance(instance, type, props, node);
        }
        appendInitialChild(parent, instance);
      } else if (node.tag === HostText) {
        var _instance = node.stateNode;
        if (needsVisibilityToggle && isHidden) {
          // This child is inside a timed out tree. Hide it.
          var text = node.memoizedProps;
          _instance = cloneHiddenTextInstance(_instance, text, node);
        }
        appendInitialChild(parent, _instance);
      } else if (enableFundamentalAPI && node.tag === FundamentalComponent) {
        var _instance2 = node.stateNode.instance;
        if (needsVisibilityToggle && isHidden) {
          // This child is inside a timed out tree. Hide it.
          var _props = node.memoizedProps;
          var _type = node.type;
          _instance2 = cloneHiddenInstance(_instance2, _type, _props, node);
        }
        appendInitialChild(parent, _instance2);
      } else if (node.tag === HostPortal) {
        // If we have a portal child, then we don't want to traverse
        // down its children. Instead, we'll get insertions from each child in
        // the portal directly.
      } else if (node.tag === SuspenseComponent) {
        if ((node.effectTag & Update) !== NoEffect) {
          // Need to toggle the visibility of the primary children.
          var newIsHidden = node.memoizedState !== null;
          if (newIsHidden) {
            var primaryChildParent = node.child;
            if (primaryChildParent !== null) {
              if (primaryChildParent.child !== null) {
                primaryChildParent.child.return = primaryChildParent;
                appendAllChildren(parent, primaryChildParent, true, newIsHidden);
              }
              var fallbackChildParent = primaryChildParent.sibling;
              if (fallbackChildParent !== null) {
                fallbackChildParent.return = node;
                node = fallbackChildParent;
                continue;
              }
            }
          }
        }
        if (node.child !== null) {
          // Continue traversing like normal
          node.child.return = node;
          node = node.child;
          continue;
        }
      } else if (node.child !== null) {
        node.child.return = node;
        node = node.child;
        continue;
      }
      // $FlowFixMe This is correct but Flow is confused by the labeled break.
      node = node;
      if (node === workInProgress) {
        return;
      }
      while (node.sibling === null) {
        if (node.return === null || node.return === workInProgress) {
          return;
        }
        node = node.return;
      }
      node.sibling.return = node.return;
      node = node.sibling;
    }
  };

  // An unfortunate fork of appendAllChildren because we have two different parent types.
  var appendAllChildrenToContainer = function (containerChildSet, workInProgress, needsVisibilityToggle, isHidden) {
    // We only have the top Fiber that was created but we need recurse down its
    // children to find all the terminal nodes.
    var node = workInProgress.child;
    while (node !== null) {
      // eslint-disable-next-line no-labels
      branches: if (node.tag === HostComponent) {
        var instance = node.stateNode;
        if (needsVisibilityToggle && isHidden) {
          // This child is inside a timed out tree. Hide it.
          var props = node.memoizedProps;
          var type = node.type;
          instance = cloneHiddenInstance(instance, type, props, node);
        }
        appendChildToContainerChildSet(containerChildSet, instance);
      } else if (node.tag === HostText) {
        var _instance3 = node.stateNode;
        if (needsVisibilityToggle && isHidden) {
          // This child is inside a timed out tree. Hide it.
          var text = node.memoizedProps;
          _instance3 = cloneHiddenTextInstance(_instance3, text, node);
        }
        appendChildToContainerChildSet(containerChildSet, _instance3);
      } else if (enableFundamentalAPI && node.tag === FundamentalComponent) {
        var _instance4 = node.stateNode.instance;
        if (needsVisibilityToggle && isHidden) {
          // This child is inside a timed out tree. Hide it.
          var _props2 = node.memoizedProps;
          var _type2 = node.type;
          _instance4 = cloneHiddenInstance(_instance4, _type2, _props2, node);
        }
        appendChildToContainerChildSet(containerChildSet, _instance4);
      } else if (node.tag === HostPortal) {
        // If we have a portal child, then we don't want to traverse
        // down its children. Instead, we'll get insertions from each child in
        // the portal directly.
      } else if (node.tag === SuspenseComponent) {
        if ((node.effectTag & Update) !== NoEffect) {
          // Need to toggle the visibility of the primary children.
          var newIsHidden = node.memoizedState !== null;
          if (newIsHidden) {
            var primaryChildParent = node.child;
            if (primaryChildParent !== null) {
              if (primaryChildParent.child !== null) {
                primaryChildParent.child.return = primaryChildParent;
                appendAllChildrenToContainer(containerChildSet, primaryChildParent, true, newIsHidden);
              }
              var fallbackChildParent = primaryChildParent.sibling;
              if (fallbackChildParent !== null) {
                fallbackChildParent.return = node;
                node = fallbackChildParent;
                continue;
              }
            }
          }
        }
        if (node.child !== null) {
          // Continue traversing like normal
          node.child.return = node;
          node = node.child;
          continue;
        }
      } else if (node.child !== null) {
        node.child.return = node;
        node = node.child;
        continue;
      }
      // $FlowFixMe This is correct but Flow is confused by the labeled break.
      node = node;
      if (node === workInProgress) {
        return;
      }
      while (node.sibling === null) {
        if (node.return === null || node.return === workInProgress) {
          return;
        }
        node = node.return;
      }
      node.sibling.return = node.return;
      node = node.sibling;
    }
  };
  updateHostContainer = function (workInProgress) {
    var portalOrRoot = workInProgress.stateNode;
    var childrenUnchanged = workInProgress.firstEffect === null;
    if (childrenUnchanged) {
      // No changes, just reuse the existing instance.
    } else {
      var container = portalOrRoot.containerInfo;
      var newChildSet = createContainerChildSet(container);
      // If children might have changed, we have to add them all to the set.
      appendAllChildrenToContainer(newChildSet, workInProgress, false, false);
      portalOrRoot.pendingChildren = newChildSet;
      // Schedule an update on the container to swap out the container.
      markUpdate(workInProgress);
      finalizeContainerChildren(container, newChildSet);
    }
  };
  updateHostComponent$1 = function (current, workInProgress, type, newProps, rootContainerInstance) {
    var currentInstance = current.stateNode;
    var oldProps = current.memoizedProps;
    // If there are no effects associated with this node, then none of our children had any updates.
    // This guarantees that we can reuse all of them.
    var childrenUnchanged = workInProgress.firstEffect === null;
    if (childrenUnchanged && oldProps === newProps) {
      // No changes, just reuse the existing instance.
      // Note that this might release a previous clone.
      workInProgress.stateNode = currentInstance;
      return;
    }
    var recyclableInstance = workInProgress.stateNode;
    var currentHostContext = getHostContext();
    var updatePayload = null;
    if (oldProps !== newProps) {
      updatePayload = prepareUpdate(recyclableInstance, type, oldProps, newProps, rootContainerInstance, currentHostContext);
    }
    if (childrenUnchanged && updatePayload === null) {
      // No changes, just reuse the existing instance.
      // Note that this might release a previous clone.
      workInProgress.stateNode = currentInstance;
      return;
    }
    var newInstance = cloneInstance(currentInstance, updatePayload, type, oldProps, newProps, workInProgress, childrenUnchanged, recyclableInstance);
    if (finalizeInitialChildren(newInstance, type, newProps, rootContainerInstance, currentHostContext)) {
      markUpdate(workInProgress);
    }
    workInProgress.stateNode = newInstance;
    if (childrenUnchanged) {
      // If there are no other effects in this tree, we need to flag this node as having one.
      // Even though we're not going to use it for anything.
      // Otherwise parents won't know that there are new children to propagate upwards.
      markUpdate(workInProgress);
    } else {
      // If children might have changed, we have to add them all to the set.
      appendAllChildren(newInstance, workInProgress, false, false);
    }
  };
  updateHostText$1 = function (current, workInProgress, oldText, newText) {
    if (oldText !== newText) {
      // If the text content differs, we'll create a new text instance for it.
      var rootContainerInstance = getRootHostContainer();
      var currentHostContext = getHostContext();
      workInProgress.stateNode = createTextInstance(newText, rootContainerInstance, currentHostContext, workInProgress);
      // We'll have to mark it as having an effect, even though we won't use the effect for anything.
      // This lets the parents know that at least one of their children has changed.
      markUpdate(workInProgress);
    }
  };
} else {
  // No host operations
  updateHostContainer = function (workInProgress) {
    // Noop
  };
  updateHostComponent$1 = function (current, workInProgress, type, newProps, rootContainerInstance) {
    // Noop
  };
  updateHostText$1 = function (current, workInProgress, oldText, newText) {
    // Noop
  };
}

function cutOffTailIfNeeded(renderState, hasRenderedATailFallback) {
  switch (renderState.tailMode) {
    case 'hidden':
      {
        // Any insertions at the end of the tail list after this point
        // should be invisible. If there are already mounted boundaries
        // anything before them are not considered for collapsing.
        // Therefore we need to go through the whole tail to find if
        // there are any.
        var tailNode = renderState.tail;
        var lastTailNode = null;
        while (tailNode !== null) {
          if (tailNode.alternate !== null) {
            lastTailNode = tailNode;
          }
          tailNode = tailNode.sibling;
        }
        // Next we're simply going to delete all insertions after the
        // last rendered item.
        if (lastTailNode === null) {
          // All remaining items in the tail are insertions.
          renderState.tail = null;
        } else {
          // Detach the insertion after the last node that was already
          // inserted.
          lastTailNode.sibling = null;
        }
        break;
      }
    case 'collapsed':
      {
        // Any insertions at the end of the tail list after this point
        // should be invisible. If there are already mounted boundaries
        // anything before them are not considered for collapsing.
        // Therefore we need to go through the whole tail to find if
        // there are any.
        var _tailNode = renderState.tail;
        var _lastTailNode = null;
        while (_tailNode !== null) {
          if (_tailNode.alternate !== null) {
            _lastTailNode = _tailNode;
          }
          _tailNode = _tailNode.sibling;
        }
        // Next we're simply going to delete all insertions after the
        // last rendered item.
        if (_lastTailNode === null) {
          // All remaining items in the tail are insertions.
          if (!hasRenderedATailFallback && renderState.tail !== null) {
            // We suspended during the head. We want to show at least one
            // row at the tail. So we'll keep on and cut off the rest.
            renderState.tail.sibling = null;
          } else {
            renderState.tail = null;
          }
        } else {
          // Detach the insertion after the last node that was already
          // inserted.
          _lastTailNode.sibling = null;
        }
        break;
      }
  }
}

function completeWork(current, workInProgress, renderExpirationTime) {
  var newProps = workInProgress.pendingProps;

  switch (workInProgress.tag) {
    case IndeterminateComponent:
      break;
    case LazyComponent:
      break;
    case SimpleMemoComponent:
    case FunctionComponent:
      break;
    case ClassComponent:
      {
        var Component = workInProgress.type;
        if (isContextProvider(Component)) {
          popContext(workInProgress);
        }
        break;
      }
    case HostRoot:
      {
        popHostContainer(workInProgress);
        popTopLevelContextObject(workInProgress);
        var fiberRoot = workInProgress.stateNode;
        if (fiberRoot.pendingContext) {
          fiberRoot.context = fiberRoot.pendingContext;
          fiberRoot.pendingContext = null;
        }
        if (current === null || current.child === null) {
          // If we hydrated, pop so that we can delete any remaining children
          // that weren't hydrated.
          popHydrationState(workInProgress);
          // This resets the hacky state to fix isMounted before committing.
          // TODO: Delete this when we delete isMounted and findDOMNode.
          workInProgress.effectTag &= ~Placement;
        }
        updateHostContainer(workInProgress);
        break;
      }
    case HostComponent:
      {
        popHostContext(workInProgress);
        var rootContainerInstance = getRootHostContainer();
        var type = workInProgress.type;
        if (current !== null && workInProgress.stateNode != null) {
          updateHostComponent$1(current, workInProgress, type, newProps, rootContainerInstance);

          if (enableFlareAPI) {
            var prevListeners = current.memoizedProps.listeners;
            var nextListeners = newProps.listeners;
            var instance = workInProgress.stateNode;
            if (prevListeners !== nextListeners) {
              updateEventListeners(nextListeners, instance, rootContainerInstance, workInProgress);
            }
          }

          if (current.ref !== workInProgress.ref) {
            markRef$1(workInProgress);
          }
        } else {
          if (!newProps) {
            (function () {
              if (!(workInProgress.stateNode !== null)) {
                {
                  throw ReactError(Error('We must have new props for new mounts. This error is likely caused by a bug in React. Please file an issue.'));
                }
              }
            })();
            // This can happen when we abort work.
            break;
          }

          var currentHostContext = getHostContext();
          // TODO: Move createInstance to beginWork and keep it on a context
          // "stack" as the parent. Then append children as we go in beginWork
          // or completeWork depending on we want to add then top->down or
          // bottom->up. Top->down is faster in IE11.
          var wasHydrated = popHydrationState(workInProgress);
          if (wasHydrated) {
            // TODO: Move this and createInstance step into the beginPhase
            // to consolidate.
            if (prepareToHydrateHostInstance(workInProgress, rootContainerInstance, currentHostContext)) {
              // If changes to the hydrated node needs to be applied at the
              // commit-phase we mark this as such.
              markUpdate(workInProgress);
            }
          } else {
            var _instance5 = createInstance(type, newProps, rootContainerInstance, currentHostContext, workInProgress);

            appendAllChildren(_instance5, workInProgress, false, false);

            if (enableFlareAPI) {
              var listeners = newProps.listeners;
              if (listeners != null) {
                updateEventListeners(listeners, _instance5, rootContainerInstance, workInProgress);
              }
            }

            // Certain renderers require commit-time effects for initial mount.
            // (eg DOM renderer supports auto-focus for certain elements).
            // Make sure such renderers get scheduled for later work.
            if (finalizeInitialChildren(_instance5, type, newProps, rootContainerInstance, currentHostContext)) {
              markUpdate(workInProgress);
            }
            workInProgress.stateNode = _instance5;
          }

          if (workInProgress.ref !== null) {
            // If there is a ref on a host node we need to schedule a callback
            markRef$1(workInProgress);
          }
        }
        break;
      }
    case HostText:
      {
        var newText = newProps;
        if (current && workInProgress.stateNode != null) {
          var oldText = current.memoizedProps;
          // If we have an alternate, that means this is an update and we need
          // to schedule a side-effect to do the updates.
          updateHostText$1(current, workInProgress, oldText, newText);
        } else {
          if (typeof newText !== 'string') {
            (function () {
              if (!(workInProgress.stateNode !== null)) {
                {
                  throw ReactError(Error('We must have new props for new mounts. This error is likely caused by a bug in React. Please file an issue.'));
                }
              }
            })();
            // This can happen when we abort work.
          }
          var _rootContainerInstance = getRootHostContainer();
          var _currentHostContext = getHostContext();
          var _wasHydrated = popHydrationState(workInProgress);
          if (_wasHydrated) {
            if (prepareToHydrateHostTextInstance(workInProgress)) {
              markUpdate(workInProgress);
            }
          } else {
            workInProgress.stateNode = createTextInstance(newText, _rootContainerInstance, _currentHostContext, workInProgress);
          }
        }
        break;
      }
    case ForwardRef:
      break;
    case SuspenseComponent:
      {
        popSuspenseContext(workInProgress);
        var nextState = workInProgress.memoizedState;
        if ((workInProgress.effectTag & DidCapture) !== NoEffect) {
          // Something suspended. Re-render with the fallback children.
          workInProgress.expirationTime = renderExpirationTime;
          // Do not reset the effect list.
          return workInProgress;
        }

        var nextDidTimeout = nextState !== null;
        var prevDidTimeout = false;
        if (current === null) {
          // In cases where we didn't find a suitable hydration boundary we never
          // downgraded this to a DehydratedSuspenseComponent, but we still need to
          // pop the hydration state since we might be inside the insertion tree.
          popHydrationState(workInProgress);
        } else {
          var prevState = current.memoizedState;
          prevDidTimeout = prevState !== null;
          if (!nextDidTimeout && prevState !== null) {
            // We just switched from the fallback to the normal children.
            // Delete the fallback.
            // TODO: Would it be better to store the fallback fragment on
            var currentFallbackChild = current.child.sibling;
            if (currentFallbackChild !== null) {
              // Deletions go at the beginning of the return fiber's effect list
              var first = workInProgress.firstEffect;
              if (first !== null) {
                workInProgress.firstEffect = currentFallbackChild;
                currentFallbackChild.nextEffect = first;
              } else {
                workInProgress.firstEffect = workInProgress.lastEffect = currentFallbackChild;
                currentFallbackChild.nextEffect = null;
              }
              currentFallbackChild.effectTag = Deletion;
            }
          }
        }

        if (nextDidTimeout && !prevDidTimeout) {
          // If this subtreee is running in batched mode we can suspend,
          // otherwise we won't suspend.
          // TODO: This will still suspend a synchronous tree if anything
          // in the concurrent tree already suspended during this render.
          // This is a known bug.
          if ((workInProgress.mode & BatchedMode) !== NoMode) {
            // TODO: Move this back to throwException because this is too late
            // if this is a large tree which is common for initial loads. We
            // don't know if we should restart a render or not until we get
            // this marker, and this is too late.
            // If this render already had a ping or lower pri updates,
            // and this is the first time we know we're going to suspend we
            // should be able to immediately restart from within throwException.
            var hasInvisibleChildContext = current === null && workInProgress.memoizedProps.unstable_avoidThisFallback !== true;
            if (hasInvisibleChildContext || hasSuspenseContext(suspenseStackCursor.current, InvisibleParentSuspenseContext)) {
              // If this was in an invisible tree or a new render, then showing
              // this boundary is ok.
              renderDidSuspend();
            } else {
              // Otherwise, we're going to have to hide content so we should
              // suspend for longer if possible.
              renderDidSuspendDelayIfPossible();
            }
          }
        }

        if (supportsPersistence) {
          // TODO: Only schedule updates if not prevDidTimeout.
          if (nextDidTimeout) {
            // If this boundary just timed out, schedule an effect to attach a
            // retry listener to the proimse. This flag is also used to hide the
            // primary children.
            workInProgress.effectTag |= Update;
          }
        }
        if (supportsMutation) {
          // TODO: Only schedule updates if these values are non equal, i.e. it changed.
          if (nextDidTimeout || prevDidTimeout) {
            // If this boundary just timed out, schedule an effect to attach a
            // retry listener to the proimse. This flag is also used to hide the
            // primary children. In mutation mode, we also need the flag to
            // *unhide* children that were previously hidden, so check if the
            // is currently timed out, too.
            workInProgress.effectTag |= Update;
          }
        }
        if (enableSuspenseCallback && workInProgress.updateQueue !== null && workInProgress.memoizedProps.suspenseCallback != null) {
          // Always notify the callback
          workInProgress.effectTag |= Update;
        }
        break;
      }
    case Fragment:
      break;
    case Mode:
      break;
    case Profiler:
      break;
    case HostPortal:
      popHostContainer(workInProgress);
      updateHostContainer(workInProgress);
      break;
    case ContextProvider:
      // Pop provider fiber
      popProvider(workInProgress);
      break;
    case ContextConsumer:
      break;
    case MemoComponent:
      break;
    case IncompleteClassComponent:
      {
        // Same as class component case. I put it down here so that the tags are
        // sequential to ensure this switch is compiled to a jump table.
        var _Component = workInProgress.type;
        if (isContextProvider(_Component)) {
          popContext(workInProgress);
        }
        break;
      }
    case DehydratedSuspenseComponent:
      {
        if (enableSuspenseServerRenderer) {
          popSuspenseContext(workInProgress);
          if (current === null) {
            var _wasHydrated2 = popHydrationState(workInProgress);
            (function () {
              if (!_wasHydrated2) {
                {
                  throw ReactError(Error('A dehydrated suspense component was completed without a hydrated node. This is probably a bug in React.'));
                }
              }
            })();
            if (enableSchedulerTracing) {
              markSpawnedWork(Never);
            }
            skipPastDehydratedSuspenseInstance(workInProgress);
          } else if ((workInProgress.effectTag & DidCapture) === NoEffect) {
            // This boundary did not suspend so it's now hydrated.
            // To handle any future suspense cases, we're going to now upgrade it
            // to a Suspense component. We detach it from the existing current fiber.
            current.alternate = null;
            workInProgress.alternate = null;
            workInProgress.tag = SuspenseComponent;
            workInProgress.memoizedState = null;
            workInProgress.stateNode = null;
          }
        }
        break;
      }
    case SuspenseListComponent:
      {
        popSuspenseContext(workInProgress);

        var renderState = workInProgress.memoizedState;

        if (renderState === null) {
          // We're running in the default, "independent" mode. We don't do anything
          // in this mode.
          break;
        }

        var didSuspendAlready = (workInProgress.effectTag & DidCapture) !== NoEffect;

        var renderedTail = renderState.rendering;
        if (renderedTail === null) {
          // We just rendered the head.
          if (!didSuspendAlready) {
            // This is the first pass. We need to figure out if anything is still
            // suspended in the rendered set.

            // If new content unsuspended, but there's still some content that
            // didn't. Then we need to do a second pass that forces everything
            // to keep showing their fallbacks.

            // We might be suspended if something in this render pass suspended, or
            // something in the previous committed pass suspended. Otherwise,
            // there's no chance so we can skip the expensive call to
            // findFirstSuspended.
            var cannotBeSuspended = renderHasNotSuspendedYet() && (current === null || (current.effectTag & DidCapture) === NoEffect);
            if (!cannotBeSuspended) {
              var row = workInProgress.child;
              while (row !== null) {
                var suspended = findFirstSuspended(row);
                if (suspended !== null) {
                  didSuspendAlready = true;
                  workInProgress.effectTag |= DidCapture;
                  cutOffTailIfNeeded(renderState, false);

                  // If this is a newly suspended tree, it might not get committed as
                  // part of the second pass. In that case nothing will subscribe to
                  // its thennables. Instead, we'll transfer its thennables to the
                  // SuspenseList so that it can retry if they resolve.
                  // There might be multiple of these in the list but since we're
                  // going to wait for all of them anyway, it doesn't really matter
                  // which ones gets to ping. In theory we could get clever and keep
                  // track of how many dependencies remain but it gets tricky because
                  // in the meantime, we can add/remove/change items and dependencies.
                  // We might bail out of the loop before finding any but that
                  // doesn't matter since that means that the other boundaries that
                  // we did find already has their listeners attached.
                  var newThennables = suspended.updateQueue;
                  if (newThennables !== null) {
                    workInProgress.updateQueue = newThennables;
                    workInProgress.effectTag |= Update;
                  }

                  // Rerender the whole list, but this time, we'll force fallbacks
                  // to stay in place.
                  // Reset the effect list before doing the second pass since that's now invalid.
                  workInProgress.firstEffect = workInProgress.lastEffect = null;
                  // Reset the child fibers to their original state.
                  resetChildFibers(workInProgress, renderExpirationTime);

                  // Set up the Suspense Context to force suspense and immediately
                  // rerender the children.
                  pushSuspenseContext(workInProgress, setShallowSuspenseContext(suspenseStackCursor.current, ForceSuspenseFallback));
                  return workInProgress.child;
                }
                row = row.sibling;
              }
            }
          } else {
            cutOffTailIfNeeded(renderState, false);
          }
          // Next we're going to render the tail.
        } else {
          // Append the rendered row to the child list.
          if (!didSuspendAlready) {
            var _suspended = findFirstSuspended(renderedTail);
            if (_suspended !== null) {
              workInProgress.effectTag |= DidCapture;
              didSuspendAlready = true;
              cutOffTailIfNeeded(renderState, true);
              // This might have been modified.
              if (renderState.tail === null && renderState.tailMode === 'hidden') {
                // We need to delete the row we just rendered.
                // Ensure we transfer the update queue to the parent.
                var _newThennables = _suspended.updateQueue;
                if (_newThennables !== null) {
                  workInProgress.updateQueue = _newThennables;
                  workInProgress.effectTag |= Update;
                }
                // Reset the effect list to what it w as before we rendered this
                // child. The nested children have already appended themselves.
                var lastEffect = workInProgress.lastEffect = renderState.lastEffect;
                // Remove any effects that were appended after this point.
                if (lastEffect !== null) {
                  lastEffect.nextEffect = null;
                }
                // We're done.
                return null;
              }
            } else if (now() > renderState.tailExpiration && renderExpirationTime > Never) {
              // We have now passed our CPU deadline and we'll just give up further
              // attempts to render the main content and only render fallbacks.
              // The assumption is that this is usually faster.
              workInProgress.effectTag |= DidCapture;
              didSuspendAlready = true;

              cutOffTailIfNeeded(renderState, false);

              // Since nothing actually suspended, there will nothing to ping this
              // to get it started back up to attempt the next item. If we can show
              // them, then they really have the same priority as this render.
              // So we'll pick it back up the very next render pass once we've had
              // an opportunity to yield for paint.

              var nextPriority = renderExpirationTime - 1;
              workInProgress.expirationTime = workInProgress.childExpirationTime = nextPriority;
              if (enableSchedulerTracing) {
                markSpawnedWork(nextPriority);
              }
            }
          }
          if (renderState.isBackwards) {
            // The effect list of the backwards tail will have been added
            // to the end. This breaks the guarantee that life-cycles fire in
            // sibling order but that isn't a strong guarantee promised by React.
            // Especially since these might also just pop in during future commits.
            // Append to the beginning of the list.
            renderedTail.sibling = workInProgress.child;
            workInProgress.child = renderedTail;
          } else {
            var previousSibling = renderState.last;
            if (previousSibling !== null) {
              previousSibling.sibling = renderedTail;
            } else {
              workInProgress.child = renderedTail;
            }
            renderState.last = renderedTail;
          }
        }

        if (renderState.tail !== null) {
          // We still have tail rows to render.
          if (renderState.tailExpiration === 0) {
            // Heuristic for how long we're willing to spend rendering rows
            // until we just give up and show what we have so far.
            var TAIL_EXPIRATION_TIMEOUT_MS = 500;
            renderState.tailExpiration = now() + TAIL_EXPIRATION_TIMEOUT_MS;
          }
          // Pop a row.
          var next = renderState.tail;
          renderState.rendering = next;
          renderState.tail = next.sibling;
          renderState.lastEffect = workInProgress.lastEffect;
          next.sibling = null;

          // Restore the context.
          // TODO: We can probably just avoid popping it instead and only
          // setting it the first time we go from not suspended to suspended.
          var suspenseContext = suspenseStackCursor.current;
          if (didSuspendAlready) {
            suspenseContext = setShallowSuspenseContext(suspenseContext, ForceSuspenseFallback);
          } else {
            suspenseContext = setDefaultShallowSuspenseContext(suspenseContext);
          }
          pushSuspenseContext(workInProgress, suspenseContext);
          // Do a pass over the next row.
          return next;
        }
        break;
      }
    case FundamentalComponent:
      {
        if (enableFundamentalAPI) {
          var fundamentalImpl = workInProgress.type.impl;
          var fundamentalInstance = workInProgress.stateNode;

          if (fundamentalInstance === null) {
            var getInitialState = fundamentalImpl.getInitialState;
            var fundamentalState = void 0;
            if (getInitialState !== undefined) {
              fundamentalState = getInitialState(newProps);
            }
            fundamentalInstance = workInProgress.stateNode = createFundamentalStateInstance(workInProgress, newProps, fundamentalImpl, fundamentalState || {});
            var _instance6 = getFundamentalComponentInstance(fundamentalInstance);
            fundamentalInstance.instance = _instance6;
            if (fundamentalImpl.reconcileChildren === false) {
              return null;
            }
            appendAllChildren(_instance6, workInProgress, false, false);
            mountFundamentalComponent(fundamentalInstance);
          } else {
            // We fire update in commit phase
            var prevProps = fundamentalInstance.props;
            fundamentalInstance.prevProps = prevProps;
            fundamentalInstance.props = newProps;
            fundamentalInstance.currentFiber = workInProgress;
            if (supportsPersistence) {
              var _instance7 = cloneFundamentalInstance(fundamentalInstance);
              fundamentalInstance.instance = _instance7;
              appendAllChildren(_instance7, workInProgress, false, false);
            }
            var shouldUpdate = shouldUpdateFundamentalComponent(fundamentalInstance);
            if (shouldUpdate) {
              markUpdate(workInProgress);
            }
          }
        }
        break;
      }
    default:
      (function () {
        {
          {
            throw ReactError(Error('Unknown unit of work tag. This error is likely caused by a bug in React. Please file an issue.'));
          }
        }
      })();
  }

  return null;
}

function mountEventResponder$1(responder, responderProps, instance, rootContainerInstance, fiber, respondersMap) {
  var responderState = emptyObject;
  var getInitialState = responder.getInitialState;
  if (getInitialState !== null) {
    responderState = getInitialState(responderProps);
  }
  var responderInstance = createResponderInstance(responder, responderProps, responderState, instance, fiber);
  mountResponderInstance(responder, responderInstance, responderProps, responderState, instance, rootContainerInstance);
  respondersMap.set(responder, responderInstance);
}

function updateEventListener(listener, fiber, visistedResponders, respondersMap, instance, rootContainerInstance) {
  var responder = void 0;
  var props = void 0;

  if (listener) {
    responder = listener.responder;
    props = listener.props;
  }
  (function () {
    if (!(responder && responder.$$typeof === REACT_RESPONDER_TYPE)) {
      {
        throw ReactError(Error('An invalid value was used as an event listener. Expect one or many event listeners created via React.unstable_useResponer().'));
      }
    }
  })();
  var listenerProps = props;
  if (visistedResponders.has(responder)) {
    // show warning
    {
      warning$1(false, 'Duplicate event responder "%s" found in event listeners. ' + 'Event listeners passed to elements cannot use the same event responder more than once.', responder.displayName);
    }
    return;
  }
  visistedResponders.add(responder);
  var responderInstance = respondersMap.get(responder);

  if (responderInstance === undefined) {
    // Mount
    mountEventResponder$1(responder, listenerProps, instance, rootContainerInstance, fiber, respondersMap);
  } else {
    // Update
    responderInstance.props = listenerProps;
    responderInstance.fiber = fiber;
  }
}

function updateEventListeners(listeners, instance, rootContainerInstance, fiber) {
  var visistedResponders = new Set();
  var dependencies = fiber.dependencies;
  if (listeners != null) {
    if (dependencies === null) {
      dependencies = fiber.dependencies = {
        expirationTime: NoWork,
        firstContext: null,
        responders: new Map()
      };
    }
    var respondersMap = dependencies.responders;
    if (respondersMap === null) {
      respondersMap = new Map();
    }
    if (isArray$2(listeners)) {
      for (var i = 0, length = listeners.length; i < length; i++) {
        var listener = listeners[i];
        updateEventListener(listener, fiber, visistedResponders, respondersMap, instance, rootContainerInstance);
      }
    } else {
      updateEventListener(listeners, fiber, visistedResponders, respondersMap, instance, rootContainerInstance);
    }
  }
  if (dependencies !== null) {
    var _respondersMap = dependencies.responders;
    if (_respondersMap !== null) {
      // Unmount
      var mountedResponders = Array.from(_respondersMap.keys());
      for (var _i = 0, _length = mountedResponders.length; _i < _length; _i++) {
        var mountedResponder = mountedResponders[_i];
        if (!visistedResponders.has(mountedResponder)) {
          var responderInstance = _respondersMap.get(mountedResponder);
          unmountResponderInstance(responderInstance);
          _respondersMap.delete(mountedResponder);
        }
      }
    }
  }
}

function unwindWork(workInProgress, renderExpirationTime) {
  switch (workInProgress.tag) {
    case ClassComponent:
      {
        var Component = workInProgress.type;
        if (isContextProvider(Component)) {
          popContext(workInProgress);
        }
        var effectTag = workInProgress.effectTag;
        if (effectTag & ShouldCapture) {
          workInProgress.effectTag = effectTag & ~ShouldCapture | DidCapture;
          return workInProgress;
        }
        return null;
      }
    case HostRoot:
      {
        popHostContainer(workInProgress);
        popTopLevelContextObject(workInProgress);
        var _effectTag = workInProgress.effectTag;
        (function () {
          if (!((_effectTag & DidCapture) === NoEffect)) {
            {
              throw ReactError(Error('The root failed to unmount after an error. This is likely a bug in React. Please file an issue.'));
            }
          }
        })();
        workInProgress.effectTag = _effectTag & ~ShouldCapture | DidCapture;
        return workInProgress;
      }
    case HostComponent:
      {
        // TODO: popHydrationState
        popHostContext(workInProgress);
        return null;
      }
    case SuspenseComponent:
      {
        popSuspenseContext(workInProgress);
        var _effectTag2 = workInProgress.effectTag;
        if (_effectTag2 & ShouldCapture) {
          workInProgress.effectTag = _effectTag2 & ~ShouldCapture | DidCapture;
          // Captured a suspense effect. Re-render the boundary.
          return workInProgress;
        }
        return null;
      }
    case DehydratedSuspenseComponent:
      {
        if (enableSuspenseServerRenderer) {
          // TODO: popHydrationState
          popSuspenseContext(workInProgress);
          var _effectTag3 = workInProgress.effectTag;
          if (_effectTag3 & ShouldCapture) {
            workInProgress.effectTag = _effectTag3 & ~ShouldCapture | DidCapture;
            // Captured a suspense effect. Re-render the boundary.
            return workInProgress;
          }
        }
        return null;
      }
    case SuspenseListComponent:
      {
        popSuspenseContext(workInProgress);
        // SuspenseList doesn't actually catch anything. It should've been
        // caught by a nested boundary. If not, it should bubble through.
        return null;
      }
    case HostPortal:
      popHostContainer(workInProgress);
      return null;
    case ContextProvider:
      popProvider(workInProgress);
      return null;
    default:
      return null;
  }
}

function unwindInterruptedWork(interruptedWork) {
  switch (interruptedWork.tag) {
    case ClassComponent:
      {
        var childContextTypes = interruptedWork.type.childContextTypes;
        if (childContextTypes !== null && childContextTypes !== undefined) {
          popContext(interruptedWork);
        }
        break;
      }
    case HostRoot:
      {
        popHostContainer(interruptedWork);
        popTopLevelContextObject(interruptedWork);
        break;
      }
    case HostComponent:
      {
        popHostContext(interruptedWork);
        break;
      }
    case HostPortal:
      popHostContainer(interruptedWork);
      break;
    case SuspenseComponent:
      popSuspenseContext(interruptedWork);
      break;
    case DehydratedSuspenseComponent:
      if (enableSuspenseServerRenderer) {
        // TODO: popHydrationState
        popSuspenseContext(interruptedWork);
      }
      break;
    case SuspenseListComponent:
      popSuspenseContext(interruptedWork);
      break;
    case ContextProvider:
      popProvider(interruptedWork);
      break;
    default:
      break;
  }
}

function createCapturedValue(value, source) {
  // If the value is an error, call this function immediately after it is thrown
  // so the stack is accurate.
  return {
    value: value,
    source: source,
    stack: getStackByFiberInDevAndProd(source)
  };
}

// This module is forked in different environments.
// By default, return `true` to log errors to the console.
// Forks can return `false` if this isn't desirable.
function showErrorDialog(capturedError) {
  return true;
}

function logCapturedError(capturedError) {
  var logError = showErrorDialog(capturedError);

  // Allow injected showErrorDialog() to prevent default console.error logging.
  // This enables renderers like ReactNative to better manage redbox behavior.
  if (logError === false) {
    return;
  }

  var error = capturedError.error;
  {
    var componentName = capturedError.componentName,
        componentStack = capturedError.componentStack,
        errorBoundaryName = capturedError.errorBoundaryName,
        errorBoundaryFound = capturedError.errorBoundaryFound,
        willRetry = capturedError.willRetry;

    // Browsers support silencing uncaught errors by calling
    // `preventDefault()` in window `error` handler.
    // We record this information as an expando on the error.

    if (error != null && error._suppressLogging) {
      if (errorBoundaryFound && willRetry) {
        // The error is recoverable and was silenced.
        // Ignore it and don't print the stack addendum.
        // This is handy for testing error boundaries without noise.
        return;
      }
      // The error is fatal. Since the silencing might have
      // been accidental, we'll surface it anyway.
      // However, the browser would have silenced the original error
      // so we'll print it first, and then print the stack addendum.
      console.error(error);
      // For a more detailed description of this block, see:
      // https://github.com/facebook/react/pull/13384
    }

    var componentNameMessage = componentName ? 'The above error occurred in the <' + componentName + '> component:' : 'The above error occurred in one of your React components:';

    var errorBoundaryMessage = void 0;
    // errorBoundaryFound check is sufficient; errorBoundaryName check is to satisfy Flow.
    if (errorBoundaryFound && errorBoundaryName) {
      if (willRetry) {
        errorBoundaryMessage = 'React will try to recreate this component tree from scratch ' + ('using the error boundary you provided, ' + errorBoundaryName + '.');
      } else {
        errorBoundaryMessage = 'This error was initially handled by the error boundary ' + errorBoundaryName + '.\n' + 'Recreating the tree from scratch failed so React will unmount the tree.';
      }
    } else {
      errorBoundaryMessage = 'Consider adding an error boundary to your tree to customize error handling behavior.\n' + 'Visit https://fb.me/react-error-boundaries to learn more about error boundaries.';
    }
    var combinedMessage = '' + componentNameMessage + componentStack + '\n\n' + ('' + errorBoundaryMessage);

    // In development, we provide our own message with just the component stack.
    // We don't include the original error message and JS stack because the browser
    // has already printed it. Even if the application swallows the error, it is still
    // displayed by the browser thanks to the DEV-only fake event trick in ReactErrorUtils.
    console.error(combinedMessage);
  }
}

var didWarnAboutUndefinedSnapshotBeforeUpdate = null;
{
  didWarnAboutUndefinedSnapshotBeforeUpdate = new Set();
}

var PossiblyWeakSet$1 = typeof WeakSet === 'function' ? WeakSet : Set;

function logError(boundary, errorInfo) {
  var source = errorInfo.source;
  var stack = errorInfo.stack;
  if (stack === null && source !== null) {
    stack = getStackByFiberInDevAndProd(source);
  }

  var capturedError = {
    componentName: source !== null ? getComponentName(source.type) : null,
    componentStack: stack !== null ? stack : '',
    error: errorInfo.value,
    errorBoundary: null,
    errorBoundaryName: null,
    errorBoundaryFound: false,
    willRetry: false
  };

  if (boundary !== null && boundary.tag === ClassComponent) {
    capturedError.errorBoundary = boundary.stateNode;
    capturedError.errorBoundaryName = getComponentName(boundary.type);
    capturedError.errorBoundaryFound = true;
    capturedError.willRetry = true;
  }

  try {
    logCapturedError(capturedError);
  } catch (e) {
    // This method must not throw, or React internal state will get messed up.
    // If console.error is overridden, or logCapturedError() shows a dialog that throws,
    // we want to report this error outside of the normal stack as a last resort.
    // https://github.com/facebook/react/issues/13188
    setTimeout(function () {
      throw e;
    });
  }
}

var callComponentWillUnmountWithTimer = function (current$$1, instance) {
  startPhaseTimer(current$$1, 'componentWillUnmount');
  instance.props = current$$1.memoizedProps;
  instance.state = current$$1.memoizedState;
  instance.componentWillUnmount();
  stopPhaseTimer();
};

// Capture errors so they don't interrupt unmounting.
function safelyCallComponentWillUnmount(current$$1, instance) {
  {
    invokeGuardedCallback(null, callComponentWillUnmountWithTimer, null, current$$1, instance);
    if (hasCaughtError()) {
      var unmountError = clearCaughtError();
      captureCommitPhaseError(current$$1, unmountError);
    }
  }
}

function safelyDetachRef(current$$1) {
  var ref = current$$1.ref;
  if (ref !== null) {
    if (typeof ref === 'function') {
      {
        invokeGuardedCallback(null, ref, null, null);
        if (hasCaughtError()) {
          var refError = clearCaughtError();
          captureCommitPhaseError(current$$1, refError);
        }
      }
    } else {
      ref.current = null;
    }
  }
}

function safelyCallDestroy(current$$1, destroy) {
  {
    invokeGuardedCallback(null, destroy, null);
    if (hasCaughtError()) {
      var error = clearCaughtError();
      captureCommitPhaseError(current$$1, error);
    }
  }
}

function commitBeforeMutationLifeCycles(current$$1, finishedWork) {
  switch (finishedWork.tag) {
    case FunctionComponent:
    case ForwardRef:
    case SimpleMemoComponent:
      {
        commitHookEffectList(UnmountSnapshot, NoEffect$1, finishedWork);
        return;
      }
    case ClassComponent:
      {
        if (finishedWork.effectTag & Snapshot) {
          if (current$$1 !== null) {
            var prevProps = current$$1.memoizedProps;
            var prevState = current$$1.memoizedState;
            startPhaseTimer(finishedWork, 'getSnapshotBeforeUpdate');
            var instance = finishedWork.stateNode;
            // We could update instance props and state here,
            // but instead we rely on them being set during last render.
            // TODO: revisit this when we implement resuming.
            {
              if (finishedWork.type === finishedWork.elementType && !didWarnAboutReassigningProps) {
                !(instance.props === finishedWork.memoizedProps) ? warning$1(false, 'Expected %s props to match memoized props before ' + 'getSnapshotBeforeUpdate. ' + 'This might either be because of a bug in React, or because ' + 'a component reassigns its own `this.props`. ' + 'Please file an issue.', getComponentName(finishedWork.type) || 'instance') : void 0;
                !(instance.state === finishedWork.memoizedState) ? warning$1(false, 'Expected %s state to match memoized state before ' + 'getSnapshotBeforeUpdate. ' + 'This might either be because of a bug in React, or because ' + 'a component reassigns its own `this.props`. ' + 'Please file an issue.', getComponentName(finishedWork.type) || 'instance') : void 0;
              }
            }
            var snapshot = instance.getSnapshotBeforeUpdate(finishedWork.elementType === finishedWork.type ? prevProps : resolveDefaultProps(finishedWork.type, prevProps), prevState);
            {
              var didWarnSet = didWarnAboutUndefinedSnapshotBeforeUpdate;
              if (snapshot === undefined && !didWarnSet.has(finishedWork.type)) {
                didWarnSet.add(finishedWork.type);
                warningWithoutStack$1(false, '%s.getSnapshotBeforeUpdate(): A snapshot value (or null) ' + 'must be returned. You have returned undefined.', getComponentName(finishedWork.type));
              }
            }
            instance.__reactInternalSnapshotBeforeUpdate = snapshot;
            stopPhaseTimer();
          }
        }
        return;
      }
    case HostRoot:
    case HostComponent:
    case HostText:
    case HostPortal:
    case IncompleteClassComponent:
      // Nothing to do for these component types
      return;
    default:
      {
        (function () {
          {
            {
              throw ReactError(Error('This unit of work tag should not have side-effects. This error is likely caused by a bug in React. Please file an issue.'));
            }
          }
        })();
      }
  }
}

function commitHookEffectList(unmountTag, mountTag, finishedWork) {
  var updateQueue = finishedWork.updateQueue;
  var lastEffect = updateQueue !== null ? updateQueue.lastEffect : null;
  if (lastEffect !== null) {
    var firstEffect = lastEffect.next;
    var effect = firstEffect;
    do {
      if ((effect.tag & unmountTag) !== NoEffect$1) {
        // Unmount
        var destroy = effect.destroy;
        effect.destroy = undefined;
        if (destroy !== undefined) {
          destroy();
        }
      }
      if ((effect.tag & mountTag) !== NoEffect$1) {
        // Mount
        var create = effect.create;
        effect.destroy = create();

        {
          var _destroy = effect.destroy;
          if (_destroy !== undefined && typeof _destroy !== 'function') {
            var addendum = void 0;
            if (_destroy === null) {
              addendum = ' You returned null. If your effect does not require clean ' + 'up, return undefined (or nothing).';
            } else if (typeof _destroy.then === 'function') {
              addendum = '\n\nIt looks like you wrote useEffect(async () => ...) or returned a Promise. ' + 'Instead, write the async function inside your effect ' + 'and call it immediately:\n\n' + 'useEffect(() => {\n' + '  async function fetchData() {\n' + '    // You can await here\n' + '    const response = await MyAPI.getData(someId);\n' + '    // ...\n' + '  }\n' + '  fetchData();\n' + '}, [someId]); // Or [] if effect doesn\'t need props or state\n\n' + 'Learn more about data fetching with Hooks: https://fb.me/react-hooks-data-fetching';
            } else {
              addendum = ' You returned: ' + _destroy;
            }
            warningWithoutStack$1(false, 'An effect function must not return anything besides a function, ' + 'which is used for clean-up.%s%s', addendum, getStackByFiberInDevAndProd(finishedWork));
          }
        }
      }
      effect = effect.next;
    } while (effect !== firstEffect);
  }
}

function commitPassiveHookEffects(finishedWork) {
  if ((finishedWork.effectTag & Passive) !== NoEffect) {
    switch (finishedWork.tag) {
      case FunctionComponent:
      case ForwardRef:
      case SimpleMemoComponent:
        {
          commitHookEffectList(UnmountPassive, NoEffect$1, finishedWork);
          commitHookEffectList(NoEffect$1, MountPassive, finishedWork);
          break;
        }
      default:
        break;
    }
  }
}

function commitLifeCycles(finishedRoot, current$$1, finishedWork, committedExpirationTime) {
  switch (finishedWork.tag) {
    case FunctionComponent:
    case ForwardRef:
    case SimpleMemoComponent:
      {
        commitHookEffectList(UnmountLayout, MountLayout, finishedWork);
        break;
      }
    case ClassComponent:
      {
        var instance = finishedWork.stateNode;
        if (finishedWork.effectTag & Update) {
          if (current$$1 === null) {
            startPhaseTimer(finishedWork, 'componentDidMount');
            // We could update instance props and state here,
            // but instead we rely on them being set during last render.
            // TODO: revisit this when we implement resuming.
            {
              if (finishedWork.type === finishedWork.elementType && !didWarnAboutReassigningProps) {
                !(instance.props === finishedWork.memoizedProps) ? warning$1(false, 'Expected %s props to match memoized props before ' + 'componentDidMount. ' + 'This might either be because of a bug in React, or because ' + 'a component reassigns its own `this.props`. ' + 'Please file an issue.', getComponentName(finishedWork.type) || 'instance') : void 0;
                !(instance.state === finishedWork.memoizedState) ? warning$1(false, 'Expected %s state to match memoized state before ' + 'componentDidMount. ' + 'This might either be because of a bug in React, or because ' + 'a component reassigns its own `this.props`. ' + 'Please file an issue.', getComponentName(finishedWork.type) || 'instance') : void 0;
              }
            }
            instance.componentDidMount();
            stopPhaseTimer();
          } else {
            var prevProps = finishedWork.elementType === finishedWork.type ? current$$1.memoizedProps : resolveDefaultProps(finishedWork.type, current$$1.memoizedProps);
            var prevState = current$$1.memoizedState;
            startPhaseTimer(finishedWork, 'componentDidUpdate');
            // We could update instance props and state here,
            // but instead we rely on them being set during last render.
            // TODO: revisit this when we implement resuming.
            {
              if (finishedWork.type === finishedWork.elementType && !didWarnAboutReassigningProps) {
                !(instance.props === finishedWork.memoizedProps) ? warning$1(false, 'Expected %s props to match memoized props before ' + 'componentDidUpdate. ' + 'This might either be because of a bug in React, or because ' + 'a component reassigns its own `this.props`. ' + 'Please file an issue.', getComponentName(finishedWork.type) || 'instance') : void 0;
                !(instance.state === finishedWork.memoizedState) ? warning$1(false, 'Expected %s state to match memoized state before ' + 'componentDidUpdate. ' + 'This might either be because of a bug in React, or because ' + 'a component reassigns its own `this.props`. ' + 'Please file an issue.', getComponentName(finishedWork.type) || 'instance') : void 0;
              }
            }
            instance.componentDidUpdate(prevProps, prevState, instance.__reactInternalSnapshotBeforeUpdate);
            stopPhaseTimer();
          }
        }
        var updateQueue = finishedWork.updateQueue;
        if (updateQueue !== null) {
          {
            if (finishedWork.type === finishedWork.elementType && !didWarnAboutReassigningProps) {
              !(instance.props === finishedWork.memoizedProps) ? warning$1(false, 'Expected %s props to match memoized props before ' + 'processing the update queue. ' + 'This might either be because of a bug in React, or because ' + 'a component reassigns its own `this.props`. ' + 'Please file an issue.', getComponentName(finishedWork.type) || 'instance') : void 0;
              !(instance.state === finishedWork.memoizedState) ? warning$1(false, 'Expected %s state to match memoized state before ' + 'processing the update queue. ' + 'This might either be because of a bug in React, or because ' + 'a component reassigns its own `this.props`. ' + 'Please file an issue.', getComponentName(finishedWork.type) || 'instance') : void 0;
            }
          }
          // We could update instance props and state here,
          // but instead we rely on them being set during last render.
          // TODO: revisit this when we implement resuming.
          commitUpdateQueue(finishedWork, updateQueue, instance, committedExpirationTime);
        }
        return;
      }
    case HostRoot:
      {
        var _updateQueue = finishedWork.updateQueue;
        if (_updateQueue !== null) {
          var _instance = null;
          if (finishedWork.child !== null) {
            switch (finishedWork.child.tag) {
              case HostComponent:
                _instance = getPublicInstance(finishedWork.child.stateNode);
                break;
              case ClassComponent:
                _instance = finishedWork.child.stateNode;
                break;
            }
          }
          commitUpdateQueue(finishedWork, _updateQueue, _instance, committedExpirationTime);
        }
        return;
      }
    case HostComponent:
      {
        var _instance2 = finishedWork.stateNode;

        // Renderers may schedule work to be done after host components are mounted
        // (eg DOM renderer may schedule auto-focus for inputs and form controls).
        // These effects should only be committed when components are first mounted,
        // aka when there is no current/alternate.
        if (current$$1 === null && finishedWork.effectTag & Update) {
          var type = finishedWork.type;
          var props = finishedWork.memoizedProps;
          commitMount(_instance2, type, props, finishedWork);
        }

        return;
      }
    case HostText:
      {
        // We have no life-cycles associated with text.
        return;
      }
    case HostPortal:
      {
        // We have no life-cycles associated with portals.
        return;
      }
    case Profiler:
      {
        if (enableProfilerTimer) {
          var onRender = finishedWork.memoizedProps.onRender;

          if (typeof onRender === 'function') {
            if (enableSchedulerTracing) {
              onRender(finishedWork.memoizedProps.id, current$$1 === null ? 'mount' : 'update', finishedWork.actualDuration, finishedWork.treeBaseDuration, finishedWork.actualStartTime, getCommitTime(), finishedRoot.memoizedInteractions);
            } else {
              onRender(finishedWork.memoizedProps.id, current$$1 === null ? 'mount' : 'update', finishedWork.actualDuration, finishedWork.treeBaseDuration, finishedWork.actualStartTime, getCommitTime());
            }
          }
        }
        return;
      }
    case SuspenseComponent:
    case SuspenseListComponent:
    case IncompleteClassComponent:
    case FundamentalComponent:
      return;
    default:
      {
        (function () {
          {
            {
              throw ReactError(Error('This unit of work tag should not have side-effects. This error is likely caused by a bug in React. Please file an issue.'));
            }
          }
        })();
      }
  }
}

function hideOrUnhideAllChildren(finishedWork, isHidden) {
  if (supportsMutation) {
    // We only have the top Fiber that was inserted but we need to recurse down its
    var node = finishedWork;
    while (true) {
      if (node.tag === HostComponent) {
        var instance = node.stateNode;
        if (isHidden) {
          hideInstance(instance);
        } else {
          unhideInstance(node.stateNode, node.memoizedProps);
        }
      } else if (node.tag === HostText) {
        var _instance3 = node.stateNode;
        if (isHidden) {
          hideTextInstance(_instance3);
        } else {
          unhideTextInstance(_instance3, node.memoizedProps);
        }
      } else if (node.tag === SuspenseComponent && node.memoizedState !== null) {
        // Found a nested Suspense component that timed out. Skip over the
        var fallbackChildFragment = node.child.sibling;
        fallbackChildFragment.return = node;
        node = fallbackChildFragment;
        continue;
      } else if (node.child !== null) {
        node.child.return = node;
        node = node.child;
        continue;
      }
      if (node === finishedWork) {
        return;
      }
      while (node.sibling === null) {
        if (node.return === null || node.return === finishedWork) {
          return;
        }
        node = node.return;
      }
      node.sibling.return = node.return;
      node = node.sibling;
    }
  }
}

function commitAttachRef(finishedWork) {
  var ref = finishedWork.ref;
  if (ref !== null) {
    var instance = finishedWork.stateNode;
    var instanceToUse = void 0;
    switch (finishedWork.tag) {
      case HostComponent:
        instanceToUse = getPublicInstance(instance);
        break;
      default:
        instanceToUse = instance;
    }
    if (typeof ref === 'function') {
      ref(instanceToUse);
    } else {
      {
        if (!ref.hasOwnProperty('current')) {
          warningWithoutStack$1(false, 'Unexpected ref object provided for %s. ' + 'Use either a ref-setter function or React.createRef().%s', getComponentName(finishedWork.type), getStackByFiberInDevAndProd(finishedWork));
        }
      }

      ref.current = instanceToUse;
    }
  }
}

function commitDetachRef(current$$1) {
  var currentRef = current$$1.ref;
  if (currentRef !== null) {
    if (typeof currentRef === 'function') {
      currentRef(null);
    } else {
      currentRef.current = null;
    }
  }
}

// User-originating errors (lifecycles and refs) should not interrupt
// deletion, so don't let them throw. Host-originating errors should
// interrupt deletion, so it's okay
function commitUnmount(current$$1, renderPriorityLevel) {
  onCommitUnmount(current$$1);

  switch (current$$1.tag) {
    case FunctionComponent:
    case ForwardRef:
    case MemoComponent:
    case SimpleMemoComponent:
      {
        var updateQueue = current$$1.updateQueue;
        if (updateQueue !== null) {
          var lastEffect = updateQueue.lastEffect;
          if (lastEffect !== null) {
            var firstEffect = lastEffect.next;

            // When the owner fiber is deleted, the destroy function of a passive
            // effect hook is called during the synchronous commit phase. This is
            // a concession to implementation complexity. Calling it in the
            // passive effect phase (like they usually are, when dependencies
            // change during an update) would require either traversing the
            // children of the deleted fiber again, or including unmount effects
            // as part of the fiber effect list.
            //
            // Because this is during the sync commit phase, we need to change
            // the priority.
            //
            // TODO: Reconsider this implementation trade off.
            var priorityLevel = renderPriorityLevel > NormalPriority ? NormalPriority : renderPriorityLevel;
            runWithPriority$2(priorityLevel, function () {
              var effect = firstEffect;
              do {
                var destroy = effect.destroy;
                if (destroy !== undefined) {
                  safelyCallDestroy(current$$1, destroy);
                }
                effect = effect.next;
              } while (effect !== firstEffect);
            });
          }
        }
        break;
      }
    case ClassComponent:
      {
        safelyDetachRef(current$$1);
        var instance = current$$1.stateNode;
        if (typeof instance.componentWillUnmount === 'function') {
          safelyCallComponentWillUnmount(current$$1, instance);
        }
        return;
      }
    case HostComponent:
      {
        if (enableFlareAPI) {
          var dependencies = current$$1.dependencies;

          if (dependencies !== null) {
            var respondersMap = dependencies.responders;
            if (respondersMap !== null) {
              var responderInstances = Array.from(respondersMap.values());
              for (var i = 0, length = responderInstances.length; i < length; i++) {
                var responderInstance = responderInstances[i];
                unmountResponderInstance(responderInstance);
              }
              dependencies.responders = null;
            }
          }
        }
        safelyDetachRef(current$$1);
        return;
      }
    case HostPortal:
      {
        // TODO: this is recursive.
        // We are also not using this parent because
        // the portal will get pushed immediately.
        if (supportsMutation) {
          unmountHostComponents(current$$1, renderPriorityLevel);
        } else if (supportsPersistence) {
          emptyPortalContainer(current$$1);
        }
        return;
      }
    case FundamentalComponent:
      {
        if (enableFundamentalAPI) {
          var fundamentalInstance = current$$1.stateNode;
          if (fundamentalInstance !== null) {
            unmountFundamentalComponent(fundamentalInstance);
            current$$1.stateNode = null;
          }
        }
      }
  }
}

function commitNestedUnmounts(root, renderPriorityLevel) {
  // While we're inside a removed host node we don't want to call
  // removeChild on the inner nodes because they're removed by the top
  // call anyway. We also want to call componentWillUnmount on all
  // composites before this host node is removed from the tree. Therefore
  var node = root;
  while (true) {
    commitUnmount(node, renderPriorityLevel);
    // Visit children because they may contain more composite or host nodes.
    // Skip portals because commitUnmount() currently visits them recursively.
    if (node.child !== null && (
    // If we use mutation we drill down into portals using commitUnmount above.
    // If we don't use mutation we drill down into portals here instead.
    !supportsMutation || node.tag !== HostPortal)) {
      node.child.return = node;
      node = node.child;
      continue;
    }
    if (node === root) {
      return;
    }
    while (node.sibling === null) {
      if (node.return === null || node.return === root) {
        return;
      }
      node = node.return;
    }
    node.sibling.return = node.return;
    node = node.sibling;
  }
}

function detachFiber(current$$1) {
  // Cut off the return pointers to disconnect it from the tree. Ideally, we
  // should clear the child pointer of the parent alternate to let this
  // get GC:ed but we don't know which for sure which parent is the current
  // one so we'll settle for GC:ing the subtree of this child. This child
  // itself will be GC:ed when the parent updates the next time.
  current$$1.return = null;
  current$$1.child = null;
  current$$1.memoizedState = null;
  current$$1.updateQueue = null;
  current$$1.dependencies = null;
  var alternate = current$$1.alternate;
  if (alternate !== null) {
    alternate.return = null;
    alternate.child = null;
    alternate.memoizedState = null;
    alternate.updateQueue = null;
    alternate.dependencies = null;
  }
}

function emptyPortalContainer(current$$1) {
  if (!supportsPersistence) {
    return;
  }

  var portal = current$$1.stateNode;
  var containerInfo = portal.containerInfo;

  var emptyChildSet = createContainerChildSet(containerInfo);
  replaceContainerChildren(containerInfo, emptyChildSet);
}

function commitContainer(finishedWork) {
  if (!supportsPersistence) {
    return;
  }

  switch (finishedWork.tag) {
    case ClassComponent:
    case HostComponent:
    case HostText:
    case FundamentalComponent:
      {
        return;
      }
    case HostRoot:
    case HostPortal:
      {
        var portalOrRoot = finishedWork.stateNode;
        var containerInfo = portalOrRoot.containerInfo,
            _pendingChildren = portalOrRoot.pendingChildren;

        replaceContainerChildren(containerInfo, _pendingChildren);
        return;
      }
    default:
      {
        (function () {
          {
            {
              throw ReactError(Error('This unit of work tag should not have side-effects. This error is likely caused by a bug in React. Please file an issue.'));
            }
          }
        })();
      }
  }
}

function getHostParentFiber(fiber) {
  var parent = fiber.return;
  while (parent !== null) {
    if (isHostParent(parent)) {
      return parent;
    }
    parent = parent.return;
  }
  (function () {
    {
      {
        throw ReactError(Error('Expected to find a host parent. This error is likely caused by a bug in React. Please file an issue.'));
      }
    }
  })();
}

function isHostParent(fiber) {
  return fiber.tag === HostComponent || fiber.tag === HostRoot || fiber.tag === HostPortal;
}

function getHostSibling(fiber) {
  // We're going to search forward into the tree until we find a sibling host
  // node. Unfortunately, if multiple insertions are done in a row we have to
  // search past them. This leads to exponential search for the next sibling.
  var node = fiber;
  siblings: while (true) {
    // If we didn't find anything, let's try the next sibling.
    while (node.sibling === null) {
      if (node.return === null || isHostParent(node.return)) {
        // If we pop out of the root or hit the parent the fiber we are the
        // last sibling.
        return null;
      }
      node = node.return;
    }
    node.sibling.return = node.return;
    node = node.sibling;
    while (node.tag !== HostComponent && node.tag !== HostText && node.tag !== DehydratedSuspenseComponent) {
      // If it is not host node and, we might have a host node inside it.
      // Try to search down until we find one.
      if (node.effectTag & Placement) {
        // If we don't have a child, try the siblings instead.
        continue siblings;
      }
      // If we don't have a child, try the siblings instead.
      // We also skip portals because they are not part of this host tree.
      if (node.child === null || node.tag === HostPortal) {
        continue siblings;
      } else {
        node.child.return = node;
        node = node.child;
      }
    }
    // Check if this host node is stable or about to be placed.
    if (!(node.effectTag & Placement)) {
      // Found it!
      return node.stateNode;
    }
  }
}

function commitPlacement(finishedWork) {
  if (!supportsMutation) {
    return;
  }

  // Recursively insert all host nodes into the parent.
  var parentFiber = getHostParentFiber(finishedWork);

  // Note: these two variables *must* always be updated together.
  var parent = void 0;
  var isContainer = void 0;
  var parentStateNode = parentFiber.stateNode;
  switch (parentFiber.tag) {
    case HostComponent:
      parent = parentStateNode;
      isContainer = false;
      break;
    case HostRoot:
      parent = parentStateNode.containerInfo;
      isContainer = true;
      break;
    case HostPortal:
      parent = parentStateNode.containerInfo;
      isContainer = true;
      break;
    case FundamentalComponent:
      if (enableFundamentalAPI) {
        parent = parentStateNode.instance;
        isContainer = false;
      }
    // eslint-disable-next-line-no-fallthrough
    default:
      (function () {
        {
          {
            throw ReactError(Error('Invalid host parent fiber. This error is likely caused by a bug in React. Please file an issue.'));
          }
        }
      })();
  }
  if (parentFiber.effectTag & ContentReset) {
    // Reset the text content of the parent before doing any insertions
    resetTextContent(parent);
    // Clear ContentReset from the effect tag
    parentFiber.effectTag &= ~ContentReset;
  }

  var before = getHostSibling(finishedWork);
  // We only have the top Fiber that was inserted but we need to recurse down its
  // children to find all the terminal nodes.
  var node = finishedWork;
  while (true) {
    var isHost = node.tag === HostComponent || node.tag === HostText;
    if (isHost || node.tag === FundamentalComponent) {
      var stateNode = isHost ? node.stateNode : node.stateNode.instance;
      if (before) {
        if (isContainer) {
          insertInContainerBefore(parent, stateNode, before);
        } else {
          insertBefore(parent, stateNode, before);
        }
      } else {
        if (isContainer) {
          appendChildToContainer(parent, stateNode);
        } else {
          appendChild(parent, stateNode);
        }
      }
    } else if (node.tag === HostPortal) {
      // If the insertion itself is a portal, then we don't want to traverse
      // down its children. Instead, we'll get insertions from each child in
      // the portal directly.
    } else if (node.child !== null) {
      node.child.return = node;
      node = node.child;
      continue;
    }
    if (node === finishedWork) {
      return;
    }
    while (node.sibling === null) {
      if (node.return === null || node.return === finishedWork) {
        return;
      }
      node = node.return;
    }
    node.sibling.return = node.return;
    node = node.sibling;
  }
}

function unmountHostComponents(current$$1, renderPriorityLevel) {
  // We only have the top Fiber that was deleted but we need to recurse down its
  var node = current$$1;

  // Each iteration, currentParent is populated with node's host parent if not
  // currentParentIsValid.
  var currentParentIsValid = false;

  // Note: these two variables *must* always be updated together.
  var currentParent = void 0;
  var currentParentIsContainer = void 0;

  while (true) {
    if (!currentParentIsValid) {
      var parent = node.return;
      findParent: while (true) {
        (function () {
          if (!(parent !== null)) {
            {
              throw ReactError(Error('Expected to find a host parent. This error is likely caused by a bug in React. Please file an issue.'));
            }
          }
        })();
        var parentStateNode = parent.stateNode;
        switch (parent.tag) {
          case HostComponent:
            currentParent = parentStateNode;
            currentParentIsContainer = false;
            break findParent;
          case HostRoot:
            currentParent = parentStateNode.containerInfo;
            currentParentIsContainer = true;
            break findParent;
          case HostPortal:
            currentParent = parentStateNode.containerInfo;
            currentParentIsContainer = true;
            break findParent;
          case FundamentalComponent:
            if (enableFundamentalAPI) {
              currentParent = parentStateNode.instance;
              currentParentIsContainer = false;
            }
        }
        parent = parent.return;
      }
      currentParentIsValid = true;
    }

    if (node.tag === HostComponent || node.tag === HostText) {
      commitNestedUnmounts(node, renderPriorityLevel);
      // After all the children have unmounted, it is now safe to remove the
      // node from the tree.
      if (currentParentIsContainer) {
        removeChildFromContainer(currentParent, node.stateNode);
      } else {
        removeChild(currentParent, node.stateNode);
      }
      // Don't visit children because we already visited them.
    } else if (node.tag === FundamentalComponent) {
      var fundamentalNode = node.stateNode.instance;
      commitNestedUnmounts(node, renderPriorityLevel);
      // After all the children have unmounted, it is now safe to remove the
      // node from the tree.
      if (currentParentIsContainer) {
        removeChildFromContainer(currentParent, fundamentalNode);
      } else {
        removeChild(currentParent, fundamentalNode);
      }
    } else if (enableSuspenseServerRenderer && node.tag === DehydratedSuspenseComponent) {
      // Delete the dehydrated suspense boundary and all of its content.
      if (currentParentIsContainer) {
        clearSuspenseBoundaryFromContainer(currentParent, node.stateNode);
      } else {
        clearSuspenseBoundary(currentParent, node.stateNode);
      }
    } else if (node.tag === HostPortal) {
      if (node.child !== null) {
        // When we go into a portal, it becomes the parent to remove from.
        // We will reassign it back when we pop the portal on the way up.
        currentParent = node.stateNode.containerInfo;
        currentParentIsContainer = true;
        // Visit children because portals might contain host components.
        node.child.return = node;
        node = node.child;
        continue;
      }
    } else {
      commitUnmount(node, renderPriorityLevel);
      // Visit children because we may find more host components below.
      if (node.child !== null) {
        node.child.return = node;
        node = node.child;
        continue;
      }
    }
    if (node === current$$1) {
      return;
    }
    while (node.sibling === null) {
      if (node.return === null || node.return === current$$1) {
        return;
      }
      node = node.return;
      if (node.tag === HostPortal) {
        // When we go out of the portal, we need to restore the parent.
        // Since we don't keep a stack of them, we will search for it.
        currentParentIsValid = false;
      }
    }
    node.sibling.return = node.return;
    node = node.sibling;
  }
}

function commitDeletion(current$$1, renderPriorityLevel) {
  if (supportsMutation) {
    // Recursively delete all host nodes from the parent.
    // Detach refs and call componentWillUnmount() on the whole subtree.
    unmountHostComponents(current$$1, renderPriorityLevel);
  } else {
    // Detach refs and call componentWillUnmount() on the whole subtree.
    commitNestedUnmounts(current$$1, renderPriorityLevel);
  }
  detachFiber(current$$1);
}

function commitWork(current$$1, finishedWork) {
  if (!supportsMutation) {
    switch (finishedWork.tag) {
      case FunctionComponent:
      case ForwardRef:
      case MemoComponent:
      case SimpleMemoComponent:
        {
          // Note: We currently never use MountMutation, but useLayout uses
          // UnmountMutation.
          commitHookEffectList(UnmountMutation, MountMutation, finishedWork);
          return;
        }
      case Profiler:
        {
          return;
        }
      case SuspenseComponent:
        {
          commitSuspenseComponent(finishedWork);
          attachSuspenseRetryListeners(finishedWork);
          return;
        }
      case SuspenseListComponent:
        {
          attachSuspenseRetryListeners(finishedWork);
          return;
        }
    }

    commitContainer(finishedWork);
    return;
  }

  switch (finishedWork.tag) {
    case FunctionComponent:
    case ForwardRef:
    case MemoComponent:
    case SimpleMemoComponent:
      {
        // Note: We currently never use MountMutation, but useLayout uses
        // UnmountMutation.
        commitHookEffectList(UnmountMutation, MountMutation, finishedWork);
        return;
      }
    case ClassComponent:
      {
        return;
      }
    case HostComponent:
      {
        var instance = finishedWork.stateNode;
        if (instance != null) {
          // Commit the work prepared earlier.
          var newProps = finishedWork.memoizedProps;
          // For hydration we reuse the update path but we treat the oldProps
          // as the newProps. The updatePayload will contain the real change in
          // this case.
          var oldProps = current$$1 !== null ? current$$1.memoizedProps : newProps;
          var type = finishedWork.type;
          // TODO: Type the updateQueue to be specific to host components.
          var updatePayload = finishedWork.updateQueue;
          finishedWork.updateQueue = null;
          if (updatePayload !== null) {
            commitUpdate(instance, updatePayload, type, oldProps, newProps, finishedWork);
          }
        }
        return;
      }
    case HostText:
      {
        (function () {
          if (!(finishedWork.stateNode !== null)) {
            {
              throw ReactError(Error('This should have a text node initialized. This error is likely caused by a bug in React. Please file an issue.'));
            }
          }
        })();
        var textInstance = finishedWork.stateNode;
        var newText = finishedWork.memoizedProps;
        // For hydration we reuse the update path but we treat the oldProps
        // as the newProps. The updatePayload will contain the real change in
        // this case.
        var oldText = current$$1 !== null ? current$$1.memoizedProps : newText;
        commitTextUpdate(textInstance, oldText, newText);
        return;
      }
    case HostRoot:
      {
        return;
      }
    case Profiler:
      {
        return;
      }
    case SuspenseComponent:
      {
        commitSuspenseComponent(finishedWork);
        attachSuspenseRetryListeners(finishedWork);
        return;
      }
    case SuspenseListComponent:
      {
        attachSuspenseRetryListeners(finishedWork);
        return;
      }
    case IncompleteClassComponent:
      {
        return;
      }
    case FundamentalComponent:
      {
        if (enableFundamentalAPI) {
          var fundamentalInstance = finishedWork.stateNode;
          updateFundamentalComponent(fundamentalInstance);
        }
        return;
      }
    default:
      {
        (function () {
          {
            {
              throw ReactError(Error('This unit of work tag should not have side-effects. This error is likely caused by a bug in React. Please file an issue.'));
            }
          }
        })();
      }
  }
}

function commitSuspenseComponent(finishedWork) {
  var newState = finishedWork.memoizedState;

  var newDidTimeout = void 0;
  var primaryChildParent = finishedWork;
  if (newState === null) {
    newDidTimeout = false;
  } else {
    newDidTimeout = true;
    primaryChildParent = finishedWork.child;
    markCommitTimeOfFallback();
  }

  if (supportsMutation && primaryChildParent !== null) {
    hideOrUnhideAllChildren(primaryChildParent, newDidTimeout);
  }

  if (enableSuspenseCallback && newState !== null) {
    var suspenseCallback = finishedWork.memoizedProps.suspenseCallback;
    if (typeof suspenseCallback === 'function') {
      var thenables = finishedWork.updateQueue;
      if (thenables !== null) {
        suspenseCallback(new Set(thenables));
      }
    } else {
      if (suspenseCallback !== undefined) {
        warning$1(false, 'Unexpected type for suspenseCallback.');
      }
    }
  }
}

function attachSuspenseRetryListeners(finishedWork) {
  // If this boundary just timed out, then it will have a set of thenables.
  // For each thenable, attach a listener so that when it resolves, React
  var thenables = finishedWork.updateQueue;
  if (thenables !== null) {
    finishedWork.updateQueue = null;
    var retryCache = finishedWork.stateNode;
    if (retryCache === null) {
      retryCache = finishedWork.stateNode = new PossiblyWeakSet$1();
    }
    thenables.forEach(function (thenable) {
      // Memoize using the boundary fiber to prevent redundant listeners.
      var retry = resolveRetryThenable.bind(null, finishedWork, thenable);
      if (!retryCache.has(thenable)) {
        if (enableSchedulerTracing) {
          retry = tracing.unstable_wrap(retry);
        }
        retryCache.add(thenable);
        thenable.then(retry, retry);
      }
    });
  }
}

function commitResetTextContent(current$$1) {
  if (!supportsMutation) {
    return;
  }
  resetTextContent(current$$1.stateNode);
}

var PossiblyWeakSet = typeof WeakSet === 'function' ? WeakSet : Set;
var PossiblyWeakMap$1 = typeof WeakMap === 'function' ? WeakMap : Map;

function createRootErrorUpdate(fiber, errorInfo, expirationTime) {
  var update = createUpdate(expirationTime, null);
  // Unmount the root by rendering null.
  update.tag = CaptureUpdate;
  // Caution: React DevTools currently depends on this property
  // being called "element".
  update.payload = { element: null };
  var error = errorInfo.value;
  update.callback = function () {
    onUncaughtError(error);
    logError(fiber, errorInfo);
  };
  return update;
}

function createClassErrorUpdate(fiber, errorInfo, expirationTime) {
  var update = createUpdate(expirationTime, null);
  update.tag = CaptureUpdate;
  var getDerivedStateFromError = fiber.type.getDerivedStateFromError;
  if (typeof getDerivedStateFromError === 'function') {
    var error = errorInfo.value;
    update.payload = function () {
      logError(fiber, errorInfo);
      return getDerivedStateFromError(error);
    };
  }

  var inst = fiber.stateNode;
  if (inst !== null && typeof inst.componentDidCatch === 'function') {
    update.callback = function callback() {
      {
        markFailedErrorBoundaryForHotReloading(fiber);
      }
      if (typeof getDerivedStateFromError !== 'function') {
        // To preserve the preexisting retry behavior of error boundaries,
        // we keep track of which ones already failed during this batch.
        // This gets reset before we yield back to the browser.
        // TODO: Warn in strict mode if getDerivedStateFromError is
        // not defined.
        markLegacyErrorBoundaryAsFailed(this);

        // Only log here if componentDidCatch is the only error boundary method defined
        logError(fiber, errorInfo);
      }
      var error = errorInfo.value;
      var stack = errorInfo.stack;
      this.componentDidCatch(error, {
        componentStack: stack !== null ? stack : ''
      });
      {
        if (typeof getDerivedStateFromError !== 'function') {
          // If componentDidCatch is the only error boundary method defined,
          // then it needs to call setState to recover from errors.
          // If no state update is scheduled then the boundary will swallow the error.
          !(fiber.expirationTime === Sync) ? warningWithoutStack$1(false, '%s: Error boundaries should implement getDerivedStateFromError(). ' + 'In that method, return a state update to display an error message or fallback UI.', getComponentName(fiber.type) || 'Unknown') : void 0;
        }
      }
    };
  } else {
    update.callback = function () {
      markFailedErrorBoundaryForHotReloading(fiber);
    };
  }
  return update;
}

function attachPingListener(root, renderExpirationTime, thenable) {
  // Attach a listener to the promise to "ping" the root and retry. But
  // only if one does not already exist for the current render expiration
  // time (which acts like a "thread ID" here).
  var pingCache = root.pingCache;
  var threadIDs = void 0;
  if (pingCache === null) {
    pingCache = root.pingCache = new PossiblyWeakMap$1();
    threadIDs = new Set();
    pingCache.set(thenable, threadIDs);
  } else {
    threadIDs = pingCache.get(thenable);
    if (threadIDs === undefined) {
      threadIDs = new Set();
      pingCache.set(thenable, threadIDs);
    }
  }
  if (!threadIDs.has(renderExpirationTime)) {
    // Memoize using the thread ID to prevent redundant listeners.
    threadIDs.add(renderExpirationTime);
    var ping = pingSuspendedRoot.bind(null, root, thenable, renderExpirationTime);
    if (enableSchedulerTracing) {
      ping = tracing.unstable_wrap(ping);
    }
    thenable.then(ping, ping);
  }
}

function throwException(root, returnFiber, sourceFiber, value, renderExpirationTime) {
  // The source fiber did not complete.
  sourceFiber.effectTag |= Incomplete;
  // Its effect list is no longer valid.
  sourceFiber.firstEffect = sourceFiber.lastEffect = null;

  if (value !== null && typeof value === 'object' && typeof value.then === 'function') {
    // This is a thenable.
    var thenable = value;

    checkForWrongSuspensePriorityInDEV(sourceFiber);

    var hasInvisibleParentBoundary = hasSuspenseContext(suspenseStackCursor.current, InvisibleParentSuspenseContext);

    // Schedule the nearest Suspense to re-render the timed out view.
    var _workInProgress = returnFiber;
    do {
      if (_workInProgress.tag === SuspenseComponent && shouldCaptureSuspense(_workInProgress, hasInvisibleParentBoundary)) {
        // Found the nearest boundary.

        // Stash the promise on the boundary fiber. If the boundary times out, we'll
        var thenables = _workInProgress.updateQueue;
        if (thenables === null) {
          var updateQueue = new Set();
          updateQueue.add(thenable);
          _workInProgress.updateQueue = updateQueue;
        } else {
          thenables.add(thenable);
        }

        // If the boundary is outside of batched mode, we should *not*
        // suspend the commit. Pretend as if the suspended component rendered
        // null and keep rendering. In the commit phase, we'll schedule a
        // subsequent synchronous update to re-render the Suspense.
        //
        // Note: It doesn't matter whether the component that suspended was
        // inside a batched mode tree. If the Suspense is outside of it, we
        // should *not* suspend the commit.
        if ((_workInProgress.mode & BatchedMode) === NoMode) {
          _workInProgress.effectTag |= DidCapture;

          // We're going to commit this fiber even though it didn't complete.
          // But we shouldn't call any lifecycle methods or callbacks. Remove
          // all lifecycle effect tags.
          sourceFiber.effectTag &= ~(LifecycleEffectMask | Incomplete);

          if (sourceFiber.tag === ClassComponent) {
            var currentSourceFiber = sourceFiber.alternate;
            if (currentSourceFiber === null) {
              // This is a new mount. Change the tag so it's not mistaken for a
              // completed class component. For example, we should not call
              // componentWillUnmount if it is deleted.
              sourceFiber.tag = IncompleteClassComponent;
            } else {
              // When we try rendering again, we should not reuse the current fiber,
              // since it's known to be in an inconsistent state. Use a force update to
              // prevent a bail out.
              var update = createUpdate(Sync, null);
              update.tag = ForceUpdate;
              enqueueUpdate(sourceFiber, update);
            }
          }

          // The source fiber did not complete. Mark it with Sync priority to
          // indicate that it still has pending work.
          sourceFiber.expirationTime = Sync;

          // Exit without suspending.
          return;
        }

        // Confirmed that the boundary is in a concurrent mode tree. Continue
        // with the normal suspend path.
        //
        // After this we'll use a set of heuristics to determine whether this
        // render pass will run to completion or restart or "suspend" the commit.
        // The actual logic for this is spread out in different places.
        //
        // This first principle is that if we're going to suspend when we complete
        // a root, then we should also restart if we get an update or ping that
        // might unsuspend it, and vice versa. The only reason to suspend is
        // because you think you might want to restart before committing. However,
        // it doesn't make sense to restart only while in the period we're suspended.
        //
        // Restarting too aggressively is also not good because it starves out any
        // intermediate loading state. So we use heuristics to determine when.

        // Suspense Heuristics
        //
        // If nothing threw a Promise or all the same fallbacks are already showing,
        // then don't suspend/restart.
        //
        // If this is an initial render of a new tree of Suspense boundaries and
        // those trigger a fallback, then don't suspend/restart. We want to ensure
        // that we can show the initial loading state as quickly as possible.
        //
        // If we hit a "Delayed" case, such as when we'd switch from content back into
        // a fallback, then we should always suspend/restart. SuspenseConfig applies to
        // this case. If none is defined, JND is used instead.
        //
        // If we're already showing a fallback and it gets "retried", allowing us to show
        // another level, but there's still an inner boundary that would show a fallback,
        // then we suspend/restart for 500ms since the last time we showed a fallback
        // anywhere in the tree. This effectively throttles progressive loading into a
        // consistent train of commits. This also gives us an opportunity to restart to
        // get to the completed state slightly earlier.
        //
        // If there's ambiguity due to batching it's resolved in preference of:
        // 1) "delayed", 2) "initial render", 3) "retry".
        //
        // We want to ensure that a "busy" state doesn't get force committed. We want to
        // ensure that new initial loading states can commit as soon as possible.

        attachPingListener(root, renderExpirationTime, thenable);

        _workInProgress.effectTag |= ShouldCapture;
        _workInProgress.expirationTime = renderExpirationTime;

        return;
      } else if (enableSuspenseServerRenderer && _workInProgress.tag === DehydratedSuspenseComponent) {
        attachPingListener(root, renderExpirationTime, thenable);

        // Since we already have a current fiber, we can eagerly add a retry listener.
        var retryCache = _workInProgress.memoizedState;
        if (retryCache === null) {
          retryCache = _workInProgress.memoizedState = new PossiblyWeakSet();
          var current$$1 = _workInProgress.alternate;
          (function () {
            if (!current$$1) {
              {
                throw ReactError(Error('A dehydrated suspense boundary must commit before trying to render. This is probably a bug in React.'));
              }
            }
          })();
          current$$1.memoizedState = retryCache;
        }
        // Memoize using the boundary fiber to prevent redundant listeners.
        if (!retryCache.has(thenable)) {
          retryCache.add(thenable);
          var retry = resolveRetryThenable.bind(null, _workInProgress, thenable);
          if (enableSchedulerTracing) {
            retry = tracing.unstable_wrap(retry);
          }
          thenable.then(retry, retry);
        }
        _workInProgress.effectTag |= ShouldCapture;
        _workInProgress.expirationTime = renderExpirationTime;
        return;
      }
      // This boundary already captured during this render. Continue to the next
      // boundary.
      _workInProgress = _workInProgress.return;
    } while (_workInProgress !== null);
    // No boundary was found. Fallthrough to error mode.
    // TODO: Use invariant so the message is stripped in prod?
    value = new Error((getComponentName(sourceFiber.type) || 'A React component') + ' suspended while rendering, but no fallback UI was specified.\n' + '\n' + 'Add a <Suspense fallback=...> component higher in the tree to ' + 'provide a loading indicator or placeholder to display.' + getStackByFiberInDevAndProd(sourceFiber));
  }

  // We didn't find a boundary that could handle this type of exception. Start
  // over and traverse parent path again, this time treating the exception
  // as an error.
  renderDidError();
  value = createCapturedValue(value, sourceFiber);
  var workInProgress = returnFiber;
  do {
    switch (workInProgress.tag) {
      case HostRoot:
        {
          var _errorInfo = value;
          workInProgress.effectTag |= ShouldCapture;
          workInProgress.expirationTime = renderExpirationTime;
          var _update = createRootErrorUpdate(workInProgress, _errorInfo, renderExpirationTime);
          enqueueCapturedUpdate(workInProgress, _update);
          return;
        }
      case ClassComponent:
        // Capture and retry
        var errorInfo = value;
        var ctor = workInProgress.type;
        var instance = workInProgress.stateNode;
        if ((workInProgress.effectTag & DidCapture) === NoEffect && (typeof ctor.getDerivedStateFromError === 'function' || instance !== null && typeof instance.componentDidCatch === 'function' && !isAlreadyFailedLegacyErrorBoundary(instance))) {
          workInProgress.effectTag |= ShouldCapture;
          workInProgress.expirationTime = renderExpirationTime;
          // Schedule the error boundary to re-render using updated state
          var _update2 = createClassErrorUpdate(workInProgress, errorInfo, renderExpirationTime);
          enqueueCapturedUpdate(workInProgress, _update2);
          return;
        }
        break;
      default:
        break;
    }
    workInProgress = workInProgress.return;
  } while (workInProgress !== null);
}

// The scheduler is imported here *only* to detect whether it's been mocked
// DEV stuff
var ceil = Math.ceil;

var ReactCurrentDispatcher = ReactSharedInternals.ReactCurrentDispatcher;
var ReactCurrentOwner$2 = ReactSharedInternals.ReactCurrentOwner;
var IsSomeRendererActing = ReactSharedInternals.IsSomeRendererActing;


var NoContext = /*                    */0;
var BatchedContext = /*               */1;
var EventContext = /*                 */2;
var DiscreteEventContext = /*         */4;
var LegacyUnbatchedContext = /*       */8;
var RenderContext = /*                */16;
var CommitContext = /*                */32;

var RootIncomplete = 0;
var RootErrored = 1;
var RootSuspended = 2;
var RootSuspendedWithDelay = 3;
var RootCompleted = 4;

// Describes where we are in the React execution stack
var executionContext = NoContext;
// The root we're working on
var workInProgressRoot = null;
// The fiber we're working on
var workInProgress = null;
// The expiration time we're rendering
var renderExpirationTime = NoWork;
// Whether to root completed, errored, suspended, etc.
var workInProgressRootExitStatus = RootIncomplete;
// Most recent event time among processed updates during this render.
// This is conceptually a time stamp but expressed in terms of an ExpirationTime
// because we deal mostly with expiration times in the hot path, so this avoids
// the conversion happening in the hot path.
var workInProgressRootLatestProcessedExpirationTime = Sync;
var workInProgressRootLatestSuspenseTimeout = Sync;
var workInProgressRootCanSuspendUsingConfig = null;
// If we're pinged while rendering we don't always restart immediately.
// This flag determines if it might be worthwhile to restart if an opportunity
// happens latere.
var workInProgressRootHasPendingPing = false;
// The most recent time we committed a fallback. This lets us ensure a train
// model where we don't commit new loading states in too quick succession.
var globalMostRecentFallbackTime = 0;
var FALLBACK_THROTTLE_MS = 500;

var nextEffect = null;
var hasUncaughtError = false;
var firstUncaughtError = null;
var legacyErrorBoundariesThatAlreadyFailed = null;

var rootDoesHavePassiveEffects = false;
var rootWithPendingPassiveEffects = null;
var pendingPassiveEffectsRenderPriority = NoPriority;
var pendingPassiveEffectsExpirationTime = NoWork;

var rootsWithPendingDiscreteUpdates = null;

// Use these to prevent an infinite loop of nested updates
var NESTED_UPDATE_LIMIT = 50;
var nestedUpdateCount = 0;
var rootWithNestedUpdates = null;

var NESTED_PASSIVE_UPDATE_LIMIT = 50;
var nestedPassiveUpdateCount = 0;

var interruptedBy = null;

// Marks the need to reschedule pending interactions at these expiration times
// during the commit phase. This enables them to be traced across components
// that spawn new work during render. E.g. hidden boundaries, suspended SSR
// hydration or SuspenseList.
var spawnedWorkDuringRender = null;

// Expiration times are computed by adding to the current time (the start
// time). However, if two updates are scheduled within the same event, we
// should treat their start times as simultaneous, even if the actual clock
// time has advanced between the first and second call.

// In other words, because expiration times determine how updates are batched,
// we want all updates of like priority that occur within the same event to
// receive the same expiration time. Otherwise we get tearing.
var currentEventTime = NoWork;

function requestCurrentTime() {
  if ((executionContext & (RenderContext | CommitContext)) !== NoContext) {
    // We're inside React, so it's fine to read the actual time.
    return msToExpirationTime(now());
  }
  // We're not inside React, so we may be in the middle of a browser event.
  if (currentEventTime !== NoWork) {
    // Use the same start time for all updates until we enter React again.
    return currentEventTime;
  }
  // This is the first update since React yielded. Compute a new start time.
  currentEventTime = msToExpirationTime(now());
  return currentEventTime;
}

function computeExpirationForFiber(currentTime, fiber, suspenseConfig) {
  var mode = fiber.mode;
  if ((mode & BatchedMode) === NoMode) {
    return Sync;
  }

  var priorityLevel = getCurrentPriorityLevel();
  if ((mode & ConcurrentMode) === NoMode) {
    return priorityLevel === ImmediatePriority ? Sync : Batched;
  }

  if ((executionContext & RenderContext) !== NoContext) {
    // Use whatever time we're already rendering
    return renderExpirationTime;
  }

  var expirationTime = void 0;
  if (suspenseConfig !== null) {
    // Compute an expiration time based on the Suspense timeout.
    expirationTime = computeSuspenseExpiration(currentTime, suspenseConfig.timeoutMs | 0 || LOW_PRIORITY_EXPIRATION);
  } else {
    // Compute an expiration time based on the Scheduler priority.
    switch (priorityLevel) {
      case ImmediatePriority:
        expirationTime = Sync;
        break;
      case UserBlockingPriority$2:
        // TODO: Rename this to computeUserBlockingExpiration
        expirationTime = computeInteractiveExpiration(currentTime);
        break;
      case NormalPriority:
      case LowPriority:
        // TODO: Handle LowPriority
        // TODO: Rename this to... something better.
        expirationTime = computeAsyncExpiration(currentTime);
        break;
      case IdlePriority:
        expirationTime = Never;
        break;
      default:
        (function () {
          {
            {
              throw ReactError(Error('Expected a valid priority level'));
            }
          }
        })();
    }
  }

  // If we're in the middle of rendering a tree, do not update at the same
  // expiration time that is already rendering.
  // TODO: We shouldn't have to do this if the update is on a different root.
  // Refactor computeExpirationForFiber + scheduleUpdate so we have access to
  // the root when we check for this condition.
  if (workInProgressRoot !== null && expirationTime === renderExpirationTime) {
    // This is a trick to move this update into a separate batch
    expirationTime -= 1;
  }

  return expirationTime;
}

var lastUniqueAsyncExpiration = NoWork;
function computeUniqueAsyncExpiration() {
  var currentTime = requestCurrentTime();
  var result = computeAsyncExpiration(currentTime);
  if (result <= lastUniqueAsyncExpiration) {
    // Since we assume the current time monotonically increases, we only hit
    // this branch when computeUniqueAsyncExpiration is fired multiple times
    // within a 200ms window (or whatever the async bucket size is).
    result -= 1;
  }
  lastUniqueAsyncExpiration = result;
  return result;
}

function scheduleUpdateOnFiber(fiber, expirationTime) {
  checkForNestedUpdates();
  warnAboutInvalidUpdatesOnClassComponentsInDEV(fiber);

  var root = markUpdateTimeFromFiberToRoot(fiber, expirationTime);
  if (root === null) {
    warnAboutUpdateOnUnmountedFiberInDEV(fiber);
    return;
  }

  root.pingTime = NoWork;

  checkForInterruption(fiber, expirationTime);
  recordScheduleUpdate();

  // TODO: computeExpirationForFiber also reads the priority. Pass the
  // priority as an argument to that function and this one.
  var priorityLevel = getCurrentPriorityLevel();

  if (expirationTime === Sync) {
    if (
    // Check if we're inside unbatchedUpdates
    (executionContext & LegacyUnbatchedContext) !== NoContext &&
    // Check if we're not already rendering
    (executionContext & (RenderContext | CommitContext)) === NoContext) {
      // Register pending interactions on the root to avoid losing traced interaction data.
      schedulePendingInteractions(root, expirationTime);

      // This is a legacy edge case. The initial mount of a ReactDOM.render-ed
      // root inside of batchedUpdates should be synchronous, but layout updates
      // should be deferred until the end of the batch.
      var callback = renderRoot(root, Sync, true);
      while (callback !== null) {
        callback = callback(true);
      }
    } else {
      scheduleCallbackForRoot(root, ImmediatePriority, Sync);
      if (executionContext === NoContext) {
        // Flush the synchronous work now, wnless we're already working or inside
        // a batch. This is intentionally inside scheduleUpdateOnFiber instead of
        // scheduleCallbackForFiber to preserve the ability to schedule a callback
        // without immediately flushing it. We only do this for user-initiated
        // updates, to preserve historical behavior of sync mode.
        flushSyncCallbackQueue();
      }
    }
  } else {
    scheduleCallbackForRoot(root, priorityLevel, expirationTime);
  }

  if ((executionContext & DiscreteEventContext) !== NoContext && (
  // Only updates at user-blocking priority or greater are considered
  // discrete, even inside a discrete event.
  priorityLevel === UserBlockingPriority$2 || priorityLevel === ImmediatePriority)) {
    // This is the result of a discrete event. Track the lowest priority
    // discrete update per root so we can flush them early, if needed.
    if (rootsWithPendingDiscreteUpdates === null) {
      rootsWithPendingDiscreteUpdates = new Map([[root, expirationTime]]);
    } else {
      var lastDiscreteTime = rootsWithPendingDiscreteUpdates.get(root);
      if (lastDiscreteTime === undefined || lastDiscreteTime > expirationTime) {
        rootsWithPendingDiscreteUpdates.set(root, expirationTime);
      }
    }
  }
}
var scheduleWork = scheduleUpdateOnFiber;

// This is split into a separate function so we can mark a fiber with pending
// work without treating it as a typical update that originates from an event;
// e.g. retrying a Suspense boundary isn't an update, but it does schedule work
// on a fiber.
function markUpdateTimeFromFiberToRoot(fiber, expirationTime) {
  // Update the source fiber's expiration time
  if (fiber.expirationTime < expirationTime) {
    fiber.expirationTime = expirationTime;
  }
  var alternate = fiber.alternate;
  if (alternate !== null && alternate.expirationTime < expirationTime) {
    alternate.expirationTime = expirationTime;
  }
  // Walk the parent path to the root and update the child expiration time.
  var node = fiber.return;
  var root = null;
  if (node === null && fiber.tag === HostRoot) {
    root = fiber.stateNode;
  } else {
    while (node !== null) {
      alternate = node.alternate;
      if (node.childExpirationTime < expirationTime) {
        node.childExpirationTime = expirationTime;
        if (alternate !== null && alternate.childExpirationTime < expirationTime) {
          alternate.childExpirationTime = expirationTime;
        }
      } else if (alternate !== null && alternate.childExpirationTime < expirationTime) {
        alternate.childExpirationTime = expirationTime;
      }
      if (node.return === null && node.tag === HostRoot) {
        root = node.stateNode;
        break;
      }
      node = node.return;
    }
  }

  if (root !== null) {
    // Update the first and last pending expiration times in this root
    var firstPendingTime = root.firstPendingTime;
    if (expirationTime > firstPendingTime) {
      root.firstPendingTime = expirationTime;
    }
    var lastPendingTime = root.lastPendingTime;
    if (lastPendingTime === NoWork || expirationTime < lastPendingTime) {
      root.lastPendingTime = expirationTime;
    }
  }

  return root;
}

// Use this function, along with runRootCallback, to ensure that only a single
// callback per root is scheduled. It's still possible to call renderRoot
// directly, but scheduling via this function helps avoid excessive callbacks.
// It works by storing the callback node and expiration time on the root. When a
// new callback comes in, it compares the expiration time to determine if it
// should cancel the previous one. It also relies on commitRoot scheduling a
// callback to render the next level, because that means we don't need a
// separate callback per expiration time.
function scheduleCallbackForRoot(root, priorityLevel, expirationTime) {
  var existingCallbackExpirationTime = root.callbackExpirationTime;
  if (existingCallbackExpirationTime < expirationTime) {
    // New callback has higher priority than the existing one.
    var existingCallbackNode = root.callbackNode;
    if (existingCallbackNode !== null) {
      cancelCallback(existingCallbackNode);
    }
    root.callbackExpirationTime = expirationTime;

    if (expirationTime === Sync) {
      // Sync React callbacks are scheduled on a special internal queue
      root.callbackNode = scheduleSyncCallback(runRootCallback.bind(null, root, renderRoot.bind(null, root, expirationTime)));
    } else {
      var options = null;
      if (!disableSchedulerTimeoutBasedOnReactExpirationTime && expirationTime !== Never) {
        var timeout = expirationTimeToMs(expirationTime) - now();
        options = { timeout: timeout };
      }

      root.callbackNode = scheduleCallback(priorityLevel, runRootCallback.bind(null, root, renderRoot.bind(null, root, expirationTime)), options);
      if (enableUserTimingAPI && expirationTime !== Sync && (executionContext & (RenderContext | CommitContext)) === NoContext) {
        // Scheduled an async callback, and we're not already working. Add an
        // entry to the flamegraph that shows we're waiting for a callback
        // to fire.
        startRequestCallbackTimer();
      }
    }
  }

  // Associate the current interactions with this new root+priority.
  schedulePendingInteractions(root, expirationTime);
}

function runRootCallback(root, callback, isSync) {
  var prevCallbackNode = root.callbackNode;
  var continuation = null;
  try {
    continuation = callback(isSync);
    if (continuation !== null) {
      return runRootCallback.bind(null, root, continuation);
    } else {
      return null;
    }
  } finally {
    // If the callback exits without returning a continuation, remove the
    // corresponding callback node from the root. Unless the callback node
    // has changed, which implies that it was already cancelled by a high
    // priority update.
    if (continuation === null && prevCallbackNode === root.callbackNode) {
      root.callbackNode = null;
      root.callbackExpirationTime = NoWork;
    }
  }
}

function flushRoot(root, expirationTime) {
  if ((executionContext & (RenderContext | CommitContext)) !== NoContext) {
    (function () {
      {
        {
          throw ReactError(Error('work.commit(): Cannot commit while already rendering. This likely means you attempted to commit from inside a lifecycle method.'));
        }
      }
    })();
  }
  scheduleSyncCallback(renderRoot.bind(null, root, expirationTime));
  flushSyncCallbackQueue();
}

function flushDiscreteUpdates() {
  // TODO: Should be able to flush inside batchedUpdates, but not inside `act`.
  // However, `act` uses `batchedUpdates`, so there's no way to distinguish
  // those two cases. Need to fix this before exposing flushDiscreteUpdates
  // as a public API.
  if ((executionContext & (BatchedContext | RenderContext | CommitContext)) !== NoContext) {
    if (true && (executionContext & RenderContext) !== NoContext) {
      warning$1(false, 'unstable_flushDiscreteUpdates: Cannot flush updates when React is ' + 'already rendering.');
    }
    // We're already rendering, so we can't synchronously flush pending work.
    // This is probably a nested event dispatch triggered by a lifecycle/effect,
    // like `el.focus()`. Exit.
    return;
  }
  flushPendingDiscreteUpdates();
  if (!revertPassiveEffectsChange) {
    // If the discrete updates scheduled passive effects, flush them now so that
    // they fire before the next serial event.
    flushPassiveEffects();
  }
}

function resolveLocksOnRoot(root, expirationTime) {
  var firstBatch = root.firstBatch;
  if (firstBatch !== null && firstBatch._defer && firstBatch._expirationTime >= expirationTime) {
    scheduleCallback(NormalPriority, function () {
      firstBatch._onComplete();
      return null;
    });
    return true;
  } else {
    return false;
  }
}





function flushPendingDiscreteUpdates() {
  if (rootsWithPendingDiscreteUpdates !== null) {
    // For each root with pending discrete updates, schedule a callback to
    // immediately flush them.
    var roots = rootsWithPendingDiscreteUpdates;
    rootsWithPendingDiscreteUpdates = null;
    roots.forEach(function (expirationTime, root) {
      scheduleSyncCallback(renderRoot.bind(null, root, expirationTime));
    });
    // Now flush the immediate queue.
    flushSyncCallbackQueue();
  }
}

function batchedUpdates$1(fn, a) {
  var prevExecutionContext = executionContext;
  executionContext |= BatchedContext;
  try {
    return fn(a);
  } finally {
    executionContext = prevExecutionContext;
    if (executionContext === NoContext) {
      // Flush the immediate callbacks that were scheduled during this batch
      flushSyncCallbackQueue();
    }
  }
}

function batchedEventUpdates$1(fn, a) {
  var prevExecutionContext = executionContext;
  executionContext |= EventContext;
  try {
    return fn(a);
  } finally {
    executionContext = prevExecutionContext;
    if (executionContext === NoContext) {
      // Flush the immediate callbacks that were scheduled during this batch
      flushSyncCallbackQueue();
    }
  }
}

function discreteUpdates$1(fn, a, b, c) {
  var prevExecutionContext = executionContext;
  executionContext |= DiscreteEventContext;
  try {
    // Should this
    return runWithPriority$2(UserBlockingPriority$2, fn.bind(null, a, b, c));
  } finally {
    executionContext = prevExecutionContext;
    if (executionContext === NoContext) {
      // Flush the immediate callbacks that were scheduled during this batch
      flushSyncCallbackQueue();
    }
  }
}

function unbatchedUpdates(fn, a) {
  var prevExecutionContext = executionContext;
  executionContext &= ~BatchedContext;
  executionContext |= LegacyUnbatchedContext;
  try {
    return fn(a);
  } finally {
    executionContext = prevExecutionContext;
    if (executionContext === NoContext) {
      // Flush the immediate callbacks that were scheduled during this batch
      flushSyncCallbackQueue();
    }
  }
}

function flushSync(fn, a) {
  if ((executionContext & (RenderContext | CommitContext)) !== NoContext) {
    (function () {
      {
        {
          throw ReactError(Error('flushSync was called from inside a lifecycle method. It cannot be called when React is already rendering.'));
        }
      }
    })();
  }
  var prevExecutionContext = executionContext;
  executionContext |= BatchedContext;
  try {
    return runWithPriority$2(ImmediatePriority, fn.bind(null, a));
  } finally {
    executionContext = prevExecutionContext;
    // Flush the immediate callbacks that were scheduled during this batch.
    // Note that this will happen even if batchedUpdates is higher up
    // the stack.
    flushSyncCallbackQueue();
  }
}

function flushControlled(fn) {
  var prevExecutionContext = executionContext;
  executionContext |= BatchedContext;
  try {
    runWithPriority$2(ImmediatePriority, fn);
  } finally {
    executionContext = prevExecutionContext;
    if (executionContext === NoContext) {
      // Flush the immediate callbacks that were scheduled during this batch
      flushSyncCallbackQueue();
    }
  }
}

function prepareFreshStack(root, expirationTime) {
  root.finishedWork = null;
  root.finishedExpirationTime = NoWork;

  var timeoutHandle = root.timeoutHandle;
  if (timeoutHandle !== noTimeout) {
    // The root previous suspended and scheduled a timeout to commit a fallback
    // state. Now that we have additional work, cancel the timeout.
    root.timeoutHandle = noTimeout;
    // $FlowFixMe Complains noTimeout is not a TimeoutID, despite the check above
    cancelTimeout(timeoutHandle);
  }

  if (workInProgress !== null) {
    var interruptedWork = workInProgress.return;
    while (interruptedWork !== null) {
      unwindInterruptedWork(interruptedWork);
      interruptedWork = interruptedWork.return;
    }
  }
  workInProgressRoot = root;
  workInProgress = createWorkInProgress(root.current, null, expirationTime);
  renderExpirationTime = expirationTime;
  workInProgressRootExitStatus = RootIncomplete;
  workInProgressRootLatestProcessedExpirationTime = Sync;
  workInProgressRootLatestSuspenseTimeout = Sync;
  workInProgressRootCanSuspendUsingConfig = null;
  workInProgressRootHasPendingPing = false;

  if (enableSchedulerTracing) {
    spawnedWorkDuringRender = null;
  }

  {
    ReactStrictModeWarnings.discardPendingWarnings();
    componentsThatTriggeredHighPriSuspend = null;
  }
}

function renderRoot(root, expirationTime, isSync) {
  (function () {
    if (!((executionContext & (RenderContext | CommitContext)) === NoContext)) {
      {
        throw ReactError(Error('Should not already be working.'));
      }
    }
  })();

  if (enableUserTimingAPI && expirationTime !== Sync) {
    var didExpire = isSync;
    stopRequestCallbackTimer(didExpire);
  }

  if (root.firstPendingTime < expirationTime) {
    // If there's no work left at this expiration time, exit immediately. This
    // happens when multiple callbacks are scheduled for a single root, but an
    // earlier callback flushes the work of a later one.
    return null;
  }

  if (isSync && root.finishedExpirationTime === expirationTime) {
    // There's already a pending commit at this expiration time.
    // TODO: This is poorly factored. This case only exists for the
    // batch.commit() API.
    return commitRoot.bind(null, root);
  }

  flushPassiveEffects();

  // If the root or expiration time have changed, throw out the existing stack
  // and prepare a fresh one. Otherwise we'll continue where we left off.
  if (root !== workInProgressRoot || expirationTime !== renderExpirationTime) {
    prepareFreshStack(root, expirationTime);
    startWorkOnPendingInteractions(root, expirationTime);
  } else if (workInProgressRootExitStatus === RootSuspendedWithDelay) {
    // We could've received an update at a lower priority while we yielded.
    // We're suspended in a delayed state. Once we complete this render we're
    // just going to try to recover at the last pending time anyway so we might
    // as well start doing that eagerly.
    // Ideally we should be able to do this even for retries but we don't yet
    // know if we're going to process an update which wants to commit earlier,
    // and this path happens very early so it would happen too often. Instead,
    // for that case, we'll wait until we complete.
    if (workInProgressRootHasPendingPing) {
      // We have a ping at this expiration. Let's restart to see if we get unblocked.
      prepareFreshStack(root, expirationTime);
    } else {
      var lastPendingTime = root.lastPendingTime;
      if (lastPendingTime < expirationTime) {
        // There's lower priority work. It might be unsuspended. Try rendering
        // at that level immediately, while preserving the position in the queue.
        return renderRoot.bind(null, root, lastPendingTime);
      }
    }
  }

  // If we have a work-in-progress fiber, it means there's still work to do
  // in this root.
  if (workInProgress !== null) {
    var prevExecutionContext = executionContext;
    executionContext |= RenderContext;
    var prevDispatcher = ReactCurrentDispatcher.current;
    if (prevDispatcher === null) {
      // The React isomorphic package does not include a default dispatcher.
      // Instead the first renderer will lazily attach one, in order to give
      // nicer error messages.
      prevDispatcher = ContextOnlyDispatcher;
    }
    ReactCurrentDispatcher.current = ContextOnlyDispatcher;
    var prevInteractions = null;
    if (enableSchedulerTracing) {
      prevInteractions = tracing.__interactionsRef.current;
      tracing.__interactionsRef.current = root.memoizedInteractions;
    }

    startWorkLoopTimer(workInProgress);

    // TODO: Fork renderRoot into renderRootSync and renderRootAsync
    if (isSync) {
      if (expirationTime !== Sync) {
        // An async update expired. There may be other expired updates on
        // this root. We should render all the expired work in a
        // single batch.
        var currentTime = requestCurrentTime();
        if (currentTime < expirationTime) {
          // Restart at the current time.
          executionContext = prevExecutionContext;
          resetContextDependencies();
          ReactCurrentDispatcher.current = prevDispatcher;
          if (enableSchedulerTracing) {
            tracing.__interactionsRef.current = prevInteractions;
          }
          return renderRoot.bind(null, root, currentTime);
        }
      }
    } else {
      // Since we know we're in a React event, we can clear the current
      // event time. The next update will compute a new event time.
      currentEventTime = NoWork;
    }

    do {
      try {
        if (isSync) {
          workLoopSync();
        } else {
          workLoop();
        }
        break;
      } catch (thrownValue) {
        // Reset module-level state that was set during the render phase.
        resetContextDependencies();
        resetHooks();

        var sourceFiber = workInProgress;
        if (sourceFiber === null || sourceFiber.return === null) {
          // Expected to be working on a non-root fiber. This is a fatal error
          // because there's no ancestor that can handle it; the root is
          // supposed to capture all errors that weren't caught by an error
          // boundary.
          prepareFreshStack(root, expirationTime);
          executionContext = prevExecutionContext;
          throw thrownValue;
        }

        if (enableProfilerTimer && sourceFiber.mode & ProfileMode) {
          // Record the time spent rendering before an error was thrown. This
          // avoids inaccurate Profiler durations in the case of a
          // suspended render.
          stopProfilerTimerIfRunningAndRecordDelta(sourceFiber, true);
        }

        var returnFiber = sourceFiber.return;
        throwException(root, returnFiber, sourceFiber, thrownValue, renderExpirationTime);
        workInProgress = completeUnitOfWork(sourceFiber);
      }
    } while (true);

    executionContext = prevExecutionContext;
    resetContextDependencies();
    ReactCurrentDispatcher.current = prevDispatcher;
    if (enableSchedulerTracing) {
      tracing.__interactionsRef.current = prevInteractions;
    }

    if (workInProgress !== null) {
      // There's still work left over. Return a continuation.
      stopInterruptedWorkLoopTimer();
      if (expirationTime !== Sync) {
        startRequestCallbackTimer();
      }
      return renderRoot.bind(null, root, expirationTime);
    }
  }

  // We now have a consistent tree. The next step is either to commit it, or, if
  // something suspended, wait to commit it after a timeout.
  stopFinishedWorkLoopTimer();

  root.finishedWork = root.current.alternate;
  root.finishedExpirationTime = expirationTime;

  var isLocked = resolveLocksOnRoot(root, expirationTime);
  if (isLocked) {
    // This root has a lock that prevents it from committing. Exit. If we begin
    // work on the root again, without any intervening updates, it will finish
    // without doing additional work.
    return null;
  }

  // Set this to null to indicate there's no in-progress render.
  workInProgressRoot = null;

  switch (workInProgressRootExitStatus) {
    case RootIncomplete:
      {
        (function () {
          {
            {
              throw ReactError(Error('Should have a work-in-progress.'));
            }
          }
        })();
      }
    // Flow knows about invariant, so it complains if I add a break statement,
    // but eslint doesn't know about invariant, so it complains if I do.
    // eslint-disable-next-line no-fallthrough
    case RootErrored:
      {
        // An error was thrown. First check if there is lower priority work
        // scheduled on this root.
        var _lastPendingTime = root.lastPendingTime;
        if (_lastPendingTime < expirationTime) {
          // There's lower priority work. Before raising the error, try rendering
          // at the lower priority to see if it fixes it. Use a continuation to
          // maintain the existing priority and position in the queue.
          return renderRoot.bind(null, root, _lastPendingTime);
        }
        if (!isSync) {
          // If we're rendering asynchronously, it's possible the error was
          // caused by tearing due to a mutation during an event. Try rendering
          // one more time without yiedling to events.
          prepareFreshStack(root, expirationTime);
          scheduleSyncCallback(renderRoot.bind(null, root, expirationTime));
          return null;
        }
        // If we're already rendering synchronously, commit the root in its
        // errored state.
        return commitRoot.bind(null, root);
      }
    case RootSuspended:
      {
        flushSuspensePriorityWarningInDEV();

        // We have an acceptable loading state. We need to figure out if we should
        // immediately commit it or wait a bit.

        // If we have processed new updates during this render, we may now have a
        // new loading state ready. We want to ensure that we commit that as soon as
        // possible.
        var hasNotProcessedNewUpdates = workInProgressRootLatestProcessedExpirationTime === Sync;
        if (hasNotProcessedNewUpdates && !isSync &&
        // do not delay if we're inside an act() scope
        !(true && flushSuspenseFallbacksInTests && IsThisRendererActing.current)) {
          // If we have not processed any new updates during this pass, then this is
          // either a retry of an existing fallback state or a hidden tree.
          // Hidden trees shouldn't be batched with other work and after that's
          // fixed it can only be a retry.
          // We're going to throttle committing retries so that we don't show too
          // many loading states too quickly.
          var msUntilTimeout = globalMostRecentFallbackTime + FALLBACK_THROTTLE_MS - now();
          // Don't bother with a very short suspense time.
          if (msUntilTimeout > 10) {
            if (workInProgressRootHasPendingPing) {
              // This render was pinged but we didn't get to restart earlier so try
              // restarting now instead.
              prepareFreshStack(root, expirationTime);
              return renderRoot.bind(null, root, expirationTime);
            }
            var _lastPendingTime2 = root.lastPendingTime;
            if (_lastPendingTime2 < expirationTime) {
              // There's lower priority work. It might be unsuspended. Try rendering
              // at that level.
              return renderRoot.bind(null, root, _lastPendingTime2);
            }
            // The render is suspended, it hasn't timed out, and there's no lower
            // priority work to do. Instead of committing the fallback
            // immediately, wait for more data to arrive.
            root.timeoutHandle = scheduleTimeout(commitRoot.bind(null, root), msUntilTimeout);
            return null;
          }
        }
        // The work expired. Commit immediately.
        return commitRoot.bind(null, root);
      }
    case RootSuspendedWithDelay:
      {
        flushSuspensePriorityWarningInDEV();

        if (!isSync &&
        // do not delay if we're inside an act() scope
        !(true && flushSuspenseFallbacksInTests && IsThisRendererActing.current)) {
          // We're suspended in a state that should be avoided. We'll try to avoid committing
          // it for as long as the timeouts let us.
          if (workInProgressRootHasPendingPing) {
            // This render was pinged but we didn't get to restart earlier so try
            // restarting now instead.
            prepareFreshStack(root, expirationTime);
            return renderRoot.bind(null, root, expirationTime);
          }
          var _lastPendingTime3 = root.lastPendingTime;
          if (_lastPendingTime3 < expirationTime) {
            // There's lower priority work. It might be unsuspended. Try rendering
            // at that level immediately.
            return renderRoot.bind(null, root, _lastPendingTime3);
          }

          var _msUntilTimeout = void 0;
          if (workInProgressRootLatestSuspenseTimeout !== Sync) {
            // We have processed a suspense config whose expiration time we can use as
            // the timeout.
            _msUntilTimeout = expirationTimeToMs(workInProgressRootLatestSuspenseTimeout) - now();
          } else if (workInProgressRootLatestProcessedExpirationTime === Sync) {
            // This should never normally happen because only new updates cause
            // delayed states, so we should have processed something. However,
            // this could also happen in an offscreen tree.
            _msUntilTimeout = 0;
          } else {
            // If we don't have a suspense config, we're going to use a heuristic to
            var eventTimeMs = inferTimeFromExpirationTime(workInProgressRootLatestProcessedExpirationTime);
            var currentTimeMs = now();
            var timeUntilExpirationMs = expirationTimeToMs(expirationTime) - currentTimeMs;
            var timeElapsed = currentTimeMs - eventTimeMs;
            if (timeElapsed < 0) {
              // We get this wrong some time since we estimate the time.
              timeElapsed = 0;
            }

            _msUntilTimeout = jnd(timeElapsed) - timeElapsed;

            // Clamp the timeout to the expiration time.
            // TODO: Once the event time is exact instead of inferred from expiration time
            // we don't need this.
            if (timeUntilExpirationMs < _msUntilTimeout) {
              _msUntilTimeout = timeUntilExpirationMs;
            }
          }

          // Don't bother with a very short suspense time.
          if (_msUntilTimeout > 10) {
            // The render is suspended, it hasn't timed out, and there's no lower
            // priority work to do. Instead of committing the fallback
            // immediately, wait for more data to arrive.
            root.timeoutHandle = scheduleTimeout(commitRoot.bind(null, root), _msUntilTimeout);
            return null;
          }
        }
        // The work expired. Commit immediately.
        return commitRoot.bind(null, root);
      }
    case RootCompleted:
      {
        // The work completed. Ready to commit.
        if (!isSync &&
        // do not delay if we're inside an act() scope
        !(true && flushSuspenseFallbacksInTests && IsThisRendererActing.current) && workInProgressRootLatestProcessedExpirationTime !== Sync && workInProgressRootCanSuspendUsingConfig !== null) {
          // If we have exceeded the minimum loading delay, which probably
          // means we have shown a spinner already, we might have to suspend
          // a bit longer to ensure that the spinner is shown for enough time.
          var _msUntilTimeout2 = computeMsUntilSuspenseLoadingDelay(workInProgressRootLatestProcessedExpirationTime, expirationTime, workInProgressRootCanSuspendUsingConfig);
          if (_msUntilTimeout2 > 10) {
            root.timeoutHandle = scheduleTimeout(commitRoot.bind(null, root), _msUntilTimeout2);
            return null;
          }
        }
        return commitRoot.bind(null, root);
      }
    default:
      {
        (function () {
          {
            {
              throw ReactError(Error('Unknown root exit status.'));
            }
          }
        })();
      }
  }
}

function markCommitTimeOfFallback() {
  globalMostRecentFallbackTime = now();
}

function markRenderEventTimeAndConfig(expirationTime, suspenseConfig) {
  if (expirationTime < workInProgressRootLatestProcessedExpirationTime && expirationTime > Never) {
    workInProgressRootLatestProcessedExpirationTime = expirationTime;
  }
  if (suspenseConfig !== null) {
    if (expirationTime < workInProgressRootLatestSuspenseTimeout && expirationTime > Never) {
      workInProgressRootLatestSuspenseTimeout = expirationTime;
      // Most of the time we only have one config and getting wrong is not bad.
      workInProgressRootCanSuspendUsingConfig = suspenseConfig;
    }
  }
}

function renderDidSuspend() {
  if (workInProgressRootExitStatus === RootIncomplete) {
    workInProgressRootExitStatus = RootSuspended;
  }
}

function renderDidSuspendDelayIfPossible() {
  if (workInProgressRootExitStatus === RootIncomplete || workInProgressRootExitStatus === RootSuspended) {
    workInProgressRootExitStatus = RootSuspendedWithDelay;
  }
}

function renderDidError() {
  if (workInProgressRootExitStatus !== RootCompleted) {
    workInProgressRootExitStatus = RootErrored;
  }
}

// Called during render to determine if anything has suspended.
// Returns false if we're not sure.
function renderHasNotSuspendedYet() {
  // If something errored or completed, we can't really be sure,
  // so those are false.
  return workInProgressRootExitStatus === RootIncomplete;
}

function inferTimeFromExpirationTime(expirationTime) {
  // We don't know exactly when the update was scheduled, but we can infer an
  // approximate start time from the expiration time.
  var earliestExpirationTimeMs = expirationTimeToMs(expirationTime);
  return earliestExpirationTimeMs - LOW_PRIORITY_EXPIRATION;
}

function inferTimeFromExpirationTimeWithSuspenseConfig(expirationTime, suspenseConfig) {
  // We don't know exactly when the update was scheduled, but we can infer an
  // approximate start time from the expiration time by subtracting the timeout
  // that was added to the event time.
  var earliestExpirationTimeMs = expirationTimeToMs(expirationTime);
  return earliestExpirationTimeMs - (suspenseConfig.timeoutMs | 0 || LOW_PRIORITY_EXPIRATION);
}

function workLoopSync() {
  // Already timed out, so perform work without checking if we need to yield.
  while (workInProgress !== null) {
    workInProgress = performUnitOfWork(workInProgress);
  }
}

function workLoop() {
  // Perform work until Scheduler asks us to yield
  while (workInProgress !== null && !shouldYield()) {
    workInProgress = performUnitOfWork(workInProgress);
  }
}

function performUnitOfWork(unitOfWork) {
  // The current, flushed, state of this fiber is the alternate. Ideally
  // nothing should rely on this, but relying on it here means that we don't
  // need an additional field on the work in progress.
  var current$$1 = unitOfWork.alternate;

  startWorkTimer(unitOfWork);
  setCurrentFiber(unitOfWork);

  var next = void 0;
  if (enableProfilerTimer && (unitOfWork.mode & ProfileMode) !== NoMode) {
    startProfilerTimer(unitOfWork);
    next = beginWork$$1(current$$1, unitOfWork, renderExpirationTime);
    stopProfilerTimerIfRunningAndRecordDelta(unitOfWork, true);
  } else {
    next = beginWork$$1(current$$1, unitOfWork, renderExpirationTime);
  }

  resetCurrentFiber();
  unitOfWork.memoizedProps = unitOfWork.pendingProps;
  if (next === null) {
    // If this doesn't spawn new work, complete the current work.
    next = completeUnitOfWork(unitOfWork);
  }

  ReactCurrentOwner$2.current = null;
  return next;
}

function completeUnitOfWork(unitOfWork) {
  // Attempt to complete the current unit of work, then move to the next
  // sibling. If there are no more siblings, return to the parent fiber.
  workInProgress = unitOfWork;
  do {
    // The current, flushed, state of this fiber is the alternate. Ideally
    // nothing should rely on this, but relying on it here means that we don't
    // need an additional field on the work in progress.
    var current$$1 = workInProgress.alternate;
    var returnFiber = workInProgress.return;

    // Check if the work completed or if something threw.
    if ((workInProgress.effectTag & Incomplete) === NoEffect) {
      setCurrentFiber(workInProgress);
      var next = void 0;
      if (!enableProfilerTimer || (workInProgress.mode & ProfileMode) === NoMode) {
        next = completeWork(current$$1, workInProgress, renderExpirationTime);
      } else {
        startProfilerTimer(workInProgress);
        next = completeWork(current$$1, workInProgress, renderExpirationTime);
        // Update render duration assuming we didn't error.
        stopProfilerTimerIfRunningAndRecordDelta(workInProgress, false);
      }
      stopWorkTimer(workInProgress);
      resetCurrentFiber();
      resetChildExpirationTime(workInProgress);

      if (next !== null) {
        // Completing this fiber spawned new work. Work on that next.
        return next;
      }

      if (returnFiber !== null &&
      // Do not append effects to parents if a sibling failed to complete
      (returnFiber.effectTag & Incomplete) === NoEffect) {
        // Append all the effects of the subtree and this fiber onto the effect
        // list of the parent. The completion order of the children affects the
        // side-effect order.
        if (returnFiber.firstEffect === null) {
          returnFiber.firstEffect = workInProgress.firstEffect;
        }
        if (workInProgress.lastEffect !== null) {
          if (returnFiber.lastEffect !== null) {
            returnFiber.lastEffect.nextEffect = workInProgress.firstEffect;
          }
          returnFiber.lastEffect = workInProgress.lastEffect;
        }

        // If this fiber had side-effects, we append it AFTER the children's
        // side-effects. We can perform certain side-effects earlier if needed,
        // by doing multiple passes over the effect list. We don't want to
        // schedule our own side-effect on our own list because if end up
        // reusing children we'll schedule this effect onto itself since we're
        // at the end.
        var effectTag = workInProgress.effectTag;

        // Skip both NoWork and PerformedWork tags when creating the effect
        // list. PerformedWork effect is read by React DevTools but shouldn't be
        // committed.
        if (effectTag > PerformedWork) {
          if (returnFiber.lastEffect !== null) {
            returnFiber.lastEffect.nextEffect = workInProgress;
          } else {
            returnFiber.firstEffect = workInProgress;
          }
          returnFiber.lastEffect = workInProgress;
        }
      }
    } else {
      // This fiber did not complete because something threw. Pop values off
      // the stack without entering the complete phase. If this is a boundary,
      // capture values if possible.
      var _next = unwindWork(workInProgress, renderExpirationTime);

      // Because this fiber did not complete, don't reset its expiration time.

      if (enableProfilerTimer && (workInProgress.mode & ProfileMode) !== NoMode) {
        // Record the render duration for the fiber that errored.
        stopProfilerTimerIfRunningAndRecordDelta(workInProgress, false);

        // Include the time spent working on failed children before continuing.
        var actualDuration = workInProgress.actualDuration;
        var child = workInProgress.child;
        while (child !== null) {
          actualDuration += child.actualDuration;
          child = child.sibling;
        }
        workInProgress.actualDuration = actualDuration;
      }

      if (_next !== null) {
        // If completing this work spawned new work, do that next. We'll come
        // back here again.
        // Since we're restarting, remove anything that is not a host effect
        // from the effect tag.
        // TODO: The name stopFailedWorkTimer is misleading because Suspense
        // also captures and restarts.
        stopFailedWorkTimer(workInProgress);
        _next.effectTag &= HostEffectMask;
        return _next;
      }
      stopWorkTimer(workInProgress);

      if (returnFiber !== null) {
        // Mark the parent fiber as incomplete and clear its effect list.
        returnFiber.firstEffect = returnFiber.lastEffect = null;
        returnFiber.effectTag |= Incomplete;
      }
    }

    var siblingFiber = workInProgress.sibling;
    if (siblingFiber !== null) {
      // If there is more work to do in this returnFiber, do that next.
      return siblingFiber;
    }
    // Otherwise, return to the parent
    workInProgress = returnFiber;
  } while (workInProgress !== null);

  // We've reached the root.
  if (workInProgressRootExitStatus === RootIncomplete) {
    workInProgressRootExitStatus = RootCompleted;
  }
  return null;
}

function resetChildExpirationTime(completedWork) {
  if (renderExpirationTime !== Never && completedWork.childExpirationTime === Never) {
    // The children of this component are hidden. Don't bubble their
    // expiration times.
    return;
  }

  var newChildExpirationTime = NoWork;

  // Bubble up the earliest expiration time.
  if (enableProfilerTimer && (completedWork.mode & ProfileMode) !== NoMode) {
    // In profiling mode, resetChildExpirationTime is also used to reset
    // profiler durations.
    var actualDuration = completedWork.actualDuration;
    var treeBaseDuration = completedWork.selfBaseDuration;

    // When a fiber is cloned, its actualDuration is reset to 0. This value will
    // only be updated if work is done on the fiber (i.e. it doesn't bailout).
    // When work is done, it should bubble to the parent's actualDuration. If
    // the fiber has not been cloned though, (meaning no work was done), then
    // this value will reflect the amount of time spent working on a previous
    // render. In that case it should not bubble. We determine whether it was
    // cloned by comparing the child pointer.
    var shouldBubbleActualDurations = completedWork.alternate === null || completedWork.child !== completedWork.alternate.child;

    var child = completedWork.child;
    while (child !== null) {
      var childUpdateExpirationTime = child.expirationTime;
      var childChildExpirationTime = child.childExpirationTime;
      if (childUpdateExpirationTime > newChildExpirationTime) {
        newChildExpirationTime = childUpdateExpirationTime;
      }
      if (childChildExpirationTime > newChildExpirationTime) {
        newChildExpirationTime = childChildExpirationTime;
      }
      if (shouldBubbleActualDurations) {
        actualDuration += child.actualDuration;
      }
      treeBaseDuration += child.treeBaseDuration;
      child = child.sibling;
    }
    completedWork.actualDuration = actualDuration;
    completedWork.treeBaseDuration = treeBaseDuration;
  } else {
    var _child = completedWork.child;
    while (_child !== null) {
      var _childUpdateExpirationTime = _child.expirationTime;
      var _childChildExpirationTime = _child.childExpirationTime;
      if (_childUpdateExpirationTime > newChildExpirationTime) {
        newChildExpirationTime = _childUpdateExpirationTime;
      }
      if (_childChildExpirationTime > newChildExpirationTime) {
        newChildExpirationTime = _childChildExpirationTime;
      }
      _child = _child.sibling;
    }
  }

  completedWork.childExpirationTime = newChildExpirationTime;
}

function commitRoot(root) {
  var renderPriorityLevel = getCurrentPriorityLevel();
  runWithPriority$2(ImmediatePriority, commitRootImpl.bind(null, root, renderPriorityLevel));
  // If there are passive effects, schedule a callback to flush them. This goes
  // outside commitRootImpl so that it inherits the priority of the render.
  if (rootWithPendingPassiveEffects !== null) {
    scheduleCallback(NormalPriority, function () {
      flushPassiveEffects();
      return null;
    });
  }
  return null;
}

function commitRootImpl(root, renderPriorityLevel) {
  flushPassiveEffects();
  flushRenderPhaseStrictModeWarningsInDEV();

  (function () {
    if (!((executionContext & (RenderContext | CommitContext)) === NoContext)) {
      {
        throw ReactError(Error('Should not already be working.'));
      }
    }
  })();

  var finishedWork = root.finishedWork;
  var expirationTime = root.finishedExpirationTime;
  if (finishedWork === null) {
    return null;
  }
  root.finishedWork = null;
  root.finishedExpirationTime = NoWork;

  (function () {
    if (!(finishedWork !== root.current)) {
      {
        throw ReactError(Error('Cannot commit the same tree as before. This error is likely caused by a bug in React. Please file an issue.'));
      }
    }
  })();

  // commitRoot never returns a continuation; it always finishes synchronously.
  // So we can clear these now to allow a new callback to be scheduled.
  root.callbackNode = null;
  root.callbackExpirationTime = NoWork;

  startCommitTimer();

  // Update the first and last pending times on this root. The new first
  // pending time is whatever is left on the root fiber.
  var updateExpirationTimeBeforeCommit = finishedWork.expirationTime;
  var childExpirationTimeBeforeCommit = finishedWork.childExpirationTime;
  var firstPendingTimeBeforeCommit = childExpirationTimeBeforeCommit > updateExpirationTimeBeforeCommit ? childExpirationTimeBeforeCommit : updateExpirationTimeBeforeCommit;
  root.firstPendingTime = firstPendingTimeBeforeCommit;
  if (firstPendingTimeBeforeCommit < root.lastPendingTime) {
    // This usually means we've finished all the work, but it can also happen
    // when something gets downprioritized during render, like a hidden tree.
    root.lastPendingTime = firstPendingTimeBeforeCommit;
  }

  if (root === workInProgressRoot) {
    // We can reset these now that they are finished.
    workInProgressRoot = null;
    workInProgress = null;
    renderExpirationTime = NoWork;
  } else {}
  // This indicates that the last root we worked on is not the same one that
  // we're committing now. This most commonly happens when a suspended root
  // times out.


  // Get the list of effects.
  var firstEffect = void 0;
  if (finishedWork.effectTag > PerformedWork) {
    // A fiber's effect list consists only of its children, not itself. So if
    // the root has an effect, we need to add it to the end of the list. The
    // resulting list is the set that would belong to the root's parent, if it
    // had one; that is, all the effects in the tree including the root.
    if (finishedWork.lastEffect !== null) {
      finishedWork.lastEffect.nextEffect = finishedWork;
      firstEffect = finishedWork.firstEffect;
    } else {
      firstEffect = finishedWork;
    }
  } else {
    // There is no effect on the root.
    firstEffect = finishedWork.firstEffect;
  }

  if (firstEffect !== null) {
    var prevExecutionContext = executionContext;
    executionContext |= CommitContext;
    var prevInteractions = null;
    if (enableSchedulerTracing) {
      prevInteractions = tracing.__interactionsRef.current;
      tracing.__interactionsRef.current = root.memoizedInteractions;
    }

    // Reset this to null before calling lifecycles
    ReactCurrentOwner$2.current = null;

    // The commit phase is broken into several sub-phases. We do a separate pass
    // of the effect list for each phase: all mutation effects come before all
    // layout effects, and so on.

    // The first phase a "before mutation" phase. We use this phase to read the
    // state of the host tree right before we mutate it. This is where
    // getSnapshotBeforeUpdate is called.
    startCommitSnapshotEffectsTimer();
    prepareForCommit(root.containerInfo);
    nextEffect = firstEffect;
    do {
      {
        invokeGuardedCallback(null, commitBeforeMutationEffects, null);
        if (hasCaughtError()) {
          (function () {
            if (!(nextEffect !== null)) {
              {
                throw ReactError(Error('Should be working on an effect.'));
              }
            }
          })();
          var error = clearCaughtError();
          captureCommitPhaseError(nextEffect, error);
          nextEffect = nextEffect.nextEffect;
        }
      }
    } while (nextEffect !== null);
    stopCommitSnapshotEffectsTimer();

    if (enableProfilerTimer) {
      // Mark the current commit time to be shared by all Profilers in this
      // batch. This enables them to be grouped later.
      recordCommitTime();
    }

    // The next phase is the mutation phase, where we mutate the host tree.
    startCommitHostEffectsTimer();
    nextEffect = firstEffect;
    do {
      {
        invokeGuardedCallback(null, commitMutationEffects, null, renderPriorityLevel);
        if (hasCaughtError()) {
          (function () {
            if (!(nextEffect !== null)) {
              {
                throw ReactError(Error('Should be working on an effect.'));
              }
            }
          })();
          var _error = clearCaughtError();
          captureCommitPhaseError(nextEffect, _error);
          nextEffect = nextEffect.nextEffect;
        }
      }
    } while (nextEffect !== null);
    stopCommitHostEffectsTimer();
    resetAfterCommit(root.containerInfo);

    // The work-in-progress tree is now the current tree. This must come after
    // the mutation phase, so that the previous tree is still current during
    // componentWillUnmount, but before the layout phase, so that the finished
    // work is current during componentDidMount/Update.
    root.current = finishedWork;

    // The next phase is the layout phase, where we call effects that read
    // the host tree after it's been mutated. The idiomatic use case for this is
    // layout, but class component lifecycles also fire here for legacy reasons.
    startCommitLifeCyclesTimer();
    nextEffect = firstEffect;
    do {
      {
        invokeGuardedCallback(null, commitLayoutEffects, null, root, expirationTime);
        if (hasCaughtError()) {
          (function () {
            if (!(nextEffect !== null)) {
              {
                throw ReactError(Error('Should be working on an effect.'));
              }
            }
          })();
          var _error2 = clearCaughtError();
          captureCommitPhaseError(nextEffect, _error2);
          nextEffect = nextEffect.nextEffect;
        }
      }
    } while (nextEffect !== null);
    stopCommitLifeCyclesTimer();

    nextEffect = null;

    // Tell Scheduler to yield at the end of the frame, so the browser has an
    // opportunity to paint.
    requestPaint();

    if (enableSchedulerTracing) {
      tracing.__interactionsRef.current = prevInteractions;
    }
    executionContext = prevExecutionContext;
  } else {
    // No effects.
    root.current = finishedWork;
    // Measure these anyway so the flamegraph explicitly shows that there were
    // no effects.
    // TODO: Maybe there's a better way to report this.
    startCommitSnapshotEffectsTimer();
    stopCommitSnapshotEffectsTimer();
    if (enableProfilerTimer) {
      recordCommitTime();
    }
    startCommitHostEffectsTimer();
    stopCommitHostEffectsTimer();
    startCommitLifeCyclesTimer();
    stopCommitLifeCyclesTimer();
  }

  stopCommitTimer();

  var rootDidHavePassiveEffects = rootDoesHavePassiveEffects;

  if (rootDoesHavePassiveEffects) {
    // This commit has passive effects. Stash a reference to them. But don't
    // schedule a callback until after flushing layout work.
    rootDoesHavePassiveEffects = false;
    rootWithPendingPassiveEffects = root;
    pendingPassiveEffectsExpirationTime = expirationTime;
    pendingPassiveEffectsRenderPriority = renderPriorityLevel;
  } else {
    // We are done with the effect chain at this point so let's clear the
    // nextEffect pointers to assist with GC. If we have passive effects, we'll
    // clear this in flushPassiveEffects.
    nextEffect = firstEffect;
    while (nextEffect !== null) {
      var nextNextEffect = nextEffect.nextEffect;
      nextEffect.nextEffect = null;
      nextEffect = nextNextEffect;
    }
  }

  // Check if there's remaining work on this root
  var remainingExpirationTime = root.firstPendingTime;
  if (remainingExpirationTime !== NoWork) {
    var currentTime = requestCurrentTime();
    var priorityLevel = inferPriorityFromExpirationTime(currentTime, remainingExpirationTime);

    if (enableSchedulerTracing) {
      if (spawnedWorkDuringRender !== null) {
        var expirationTimes = spawnedWorkDuringRender;
        spawnedWorkDuringRender = null;
        for (var i = 0; i < expirationTimes.length; i++) {
          scheduleInteractions(root, expirationTimes[i], root.memoizedInteractions);
        }
      }
    }

    scheduleCallbackForRoot(root, priorityLevel, remainingExpirationTime);
  } else {
    // If there's no remaining work, we can clear the set of already failed
    // error boundaries.
    legacyErrorBoundariesThatAlreadyFailed = null;
  }

  if (enableSchedulerTracing) {
    if (!rootDidHavePassiveEffects) {
      // If there are no passive effects, then we can complete the pending interactions.
      // Otherwise, we'll wait until after the passive effects are flushed.
      // Wait to do this until after remaining work has been scheduled,
      // so that we don't prematurely signal complete for interactions when there's e.g. hidden work.
      finishPendingInteractions(root, expirationTime);
    }
  }

  onCommitRoot(finishedWork.stateNode, expirationTime);

  if (remainingExpirationTime === Sync) {
    // Count the number of times the root synchronously re-renders without
    // finishing. If there are too many, it indicates an infinite update loop.
    if (root === rootWithNestedUpdates) {
      nestedUpdateCount++;
    } else {
      nestedUpdateCount = 0;
      rootWithNestedUpdates = root;
    }
  } else {
    nestedUpdateCount = 0;
  }

  if (hasUncaughtError) {
    hasUncaughtError = false;
    var _error3 = firstUncaughtError;
    firstUncaughtError = null;
    throw _error3;
  }

  if ((executionContext & LegacyUnbatchedContext) !== NoContext) {
    // This is a legacy edge case. We just committed the initial mount of
    // a ReactDOM.render-ed root inside of batchedUpdates. The commit fired
    // synchronously, but layout updates should be deferred until the end
    // of the batch.
    return null;
  }

  // If layout work was scheduled, flush it now.
  flushSyncCallbackQueue();
  return null;
}

function commitBeforeMutationEffects() {
  while (nextEffect !== null) {
    if ((nextEffect.effectTag & Snapshot) !== NoEffect) {
      setCurrentFiber(nextEffect);
      recordEffect();

      var current$$1 = nextEffect.alternate;
      commitBeforeMutationLifeCycles(current$$1, nextEffect);

      resetCurrentFiber();
    }
    nextEffect = nextEffect.nextEffect;
  }
}

function commitMutationEffects(renderPriorityLevel) {
  // TODO: Should probably move the bulk of this function to commitWork.
  while (nextEffect !== null) {
    setCurrentFiber(nextEffect);

    var effectTag = nextEffect.effectTag;

    if (effectTag & ContentReset) {
      commitResetTextContent(nextEffect);
    }

    if (effectTag & Ref) {
      var current$$1 = nextEffect.alternate;
      if (current$$1 !== null) {
        commitDetachRef(current$$1);
      }
    }

    // The following switch statement is only concerned about placement,
    // updates, and deletions. To avoid needing to add a case for every possible
    // bitmap value, we remove the secondary effects from the effect tag and
    // switch on that value.
    var primaryEffectTag = effectTag & (Placement | Update | Deletion);
    switch (primaryEffectTag) {
      case Placement:
        {
          commitPlacement(nextEffect);
          // Clear the "placement" from effect tag so that we know that this is
          // inserted, before any life-cycles like componentDidMount gets called.
          // TODO: findDOMNode doesn't rely on this any more but isMounted does
          // and isMounted is deprecated anyway so we should be able to kill this.
          nextEffect.effectTag &= ~Placement;
          break;
        }
      case PlacementAndUpdate:
        {
          // Placement
          commitPlacement(nextEffect);
          // Clear the "placement" from effect tag so that we know that this is
          // inserted, before any life-cycles like componentDidMount gets called.
          nextEffect.effectTag &= ~Placement;

          // Update
          var _current = nextEffect.alternate;
          commitWork(_current, nextEffect);
          break;
        }
      case Update:
        {
          var _current2 = nextEffect.alternate;
          commitWork(_current2, nextEffect);
          break;
        }
      case Deletion:
        {
          commitDeletion(nextEffect, renderPriorityLevel);
          break;
        }
    }

    // TODO: Only record a mutation effect if primaryEffectTag is non-zero.
    recordEffect();

    resetCurrentFiber();
    nextEffect = nextEffect.nextEffect;
  }
}

function commitLayoutEffects(root, committedExpirationTime) {
  // TODO: Should probably move the bulk of this function to commitWork.
  while (nextEffect !== null) {
    setCurrentFiber(nextEffect);

    var effectTag = nextEffect.effectTag;

    if (effectTag & (Update | Callback)) {
      recordEffect();
      var current$$1 = nextEffect.alternate;
      commitLifeCycles(root, current$$1, nextEffect, committedExpirationTime);
    }

    if (effectTag & Ref) {
      recordEffect();
      commitAttachRef(nextEffect);
    }

    if (effectTag & Passive) {
      rootDoesHavePassiveEffects = true;
    }

    resetCurrentFiber();
    nextEffect = nextEffect.nextEffect;
  }
}

function flushPassiveEffects() {
  if (rootWithPendingPassiveEffects === null) {
    return false;
  }
  var root = rootWithPendingPassiveEffects;
  var expirationTime = pendingPassiveEffectsExpirationTime;
  var renderPriorityLevel = pendingPassiveEffectsRenderPriority;
  rootWithPendingPassiveEffects = null;
  pendingPassiveEffectsExpirationTime = NoWork;
  pendingPassiveEffectsRenderPriority = NoPriority;
  var priorityLevel = renderPriorityLevel > NormalPriority ? NormalPriority : renderPriorityLevel;
  return runWithPriority$2(priorityLevel, flushPassiveEffectsImpl.bind(null, root, expirationTime));
}

function flushPassiveEffectsImpl(root, expirationTime) {
  var prevInteractions = null;
  if (enableSchedulerTracing) {
    prevInteractions = tracing.__interactionsRef.current;
    tracing.__interactionsRef.current = root.memoizedInteractions;
  }

  (function () {
    if (!((executionContext & (RenderContext | CommitContext)) === NoContext)) {
      {
        throw ReactError(Error('Cannot flush passive effects while already rendering.'));
      }
    }
  })();
  var prevExecutionContext = executionContext;
  executionContext |= CommitContext;

  // Note: This currently assumes there are no passive effects on the root
  // fiber, because the root is not part of its own effect list. This could
  // change in the future.
  var effect = root.current.firstEffect;
  while (effect !== null) {
    {
      setCurrentFiber(effect);
      invokeGuardedCallback(null, commitPassiveHookEffects, null, effect);
      if (hasCaughtError()) {
        (function () {
          if (!(effect !== null)) {
            {
              throw ReactError(Error('Should be working on an effect.'));
            }
          }
        })();
        var error = clearCaughtError();
        captureCommitPhaseError(effect, error);
      }
      resetCurrentFiber();
    }
    var nextNextEffect = effect.nextEffect;
    // Remove nextEffect pointer to assist GC
    effect.nextEffect = null;
    effect = nextNextEffect;
  }

  if (enableSchedulerTracing) {
    tracing.__interactionsRef.current = prevInteractions;
    finishPendingInteractions(root, expirationTime);
  }

  executionContext = prevExecutionContext;
  flushSyncCallbackQueue();

  // If additional passive effects were scheduled, increment a counter. If this
  // exceeds the limit, we'll fire a warning.
  nestedPassiveUpdateCount = rootWithPendingPassiveEffects === null ? 0 : nestedPassiveUpdateCount + 1;

  return true;
}

function isAlreadyFailedLegacyErrorBoundary(instance) {
  return legacyErrorBoundariesThatAlreadyFailed !== null && legacyErrorBoundariesThatAlreadyFailed.has(instance);
}

function markLegacyErrorBoundaryAsFailed(instance) {
  if (legacyErrorBoundariesThatAlreadyFailed === null) {
    legacyErrorBoundariesThatAlreadyFailed = new Set([instance]);
  } else {
    legacyErrorBoundariesThatAlreadyFailed.add(instance);
  }
}

function prepareToThrowUncaughtError(error) {
  if (!hasUncaughtError) {
    hasUncaughtError = true;
    firstUncaughtError = error;
  }
}
var onUncaughtError = prepareToThrowUncaughtError;

function captureCommitPhaseErrorOnRoot(rootFiber, sourceFiber, error) {
  var errorInfo = createCapturedValue(error, sourceFiber);
  var update = createRootErrorUpdate(rootFiber, errorInfo, Sync);
  enqueueUpdate(rootFiber, update);
  var root = markUpdateTimeFromFiberToRoot(rootFiber, Sync);
  if (root !== null) {
    scheduleCallbackForRoot(root, ImmediatePriority, Sync);
  }
}

function captureCommitPhaseError(sourceFiber, error) {
  if (sourceFiber.tag === HostRoot) {
    // Error was thrown at the root. There is no parent, so the root
    // itself should capture it.
    captureCommitPhaseErrorOnRoot(sourceFiber, sourceFiber, error);
    return;
  }

  var fiber = sourceFiber.return;
  while (fiber !== null) {
    if (fiber.tag === HostRoot) {
      captureCommitPhaseErrorOnRoot(fiber, sourceFiber, error);
      return;
    } else if (fiber.tag === ClassComponent) {
      var ctor = fiber.type;
      var instance = fiber.stateNode;
      if (typeof ctor.getDerivedStateFromError === 'function' || typeof instance.componentDidCatch === 'function' && !isAlreadyFailedLegacyErrorBoundary(instance)) {
        var errorInfo = createCapturedValue(error, sourceFiber);
        var update = createClassErrorUpdate(fiber, errorInfo,
        // TODO: This is always sync
        Sync);
        enqueueUpdate(fiber, update);
        var root = markUpdateTimeFromFiberToRoot(fiber, Sync);
        if (root !== null) {
          scheduleCallbackForRoot(root, ImmediatePriority, Sync);
        }
        return;
      }
    }
    fiber = fiber.return;
  }
}

function pingSuspendedRoot(root, thenable, suspendedTime) {
  var pingCache = root.pingCache;
  if (pingCache !== null) {
    // The thenable resolved, so we no longer need to memoize, because it will
    // never be thrown again.
    pingCache.delete(thenable);
  }

  if (workInProgressRoot === root && renderExpirationTime === suspendedTime) {
    // Received a ping at the same priority level at which we're currently
    // rendering. We might want to restart this render. This should mirror
    // the logic of whether or not a root suspends once it completes.

    // TODO: If we're rendering sync either due to Sync, Batched or expired,
    // we should probably never restart.

    // If we're suspended with delay, we'll always suspend so we can always
    // restart. If we're suspended without any updates, it might be a retry.
    // If it's early in the retry we can restart. We can't know for sure
    // whether we'll eventually process an update during this render pass,
    // but it's somewhat unlikely that we get to a ping before that, since
    // getting to the root most update is usually very fast.
    if (workInProgressRootExitStatus === RootSuspendedWithDelay || workInProgressRootExitStatus === RootSuspended && workInProgressRootLatestProcessedExpirationTime === Sync && now() - globalMostRecentFallbackTime < FALLBACK_THROTTLE_MS) {
      // Restart from the root. Don't need to schedule a ping because
      // we're already working on this tree.
      prepareFreshStack(root, renderExpirationTime);
    } else {
      // Even though we can't restart right now, we might get an
      // opportunity later. So we mark this render as having a ping.
      workInProgressRootHasPendingPing = true;
    }
    return;
  }

  var lastPendingTime = root.lastPendingTime;
  if (lastPendingTime < suspendedTime) {
    // The root is no longer suspended at this time.
    return;
  }

  var pingTime = root.pingTime;
  if (pingTime !== NoWork && pingTime < suspendedTime) {
    // There's already a lower priority ping scheduled.
    return;
  }

  // Mark the time at which this ping was scheduled.
  root.pingTime = suspendedTime;

  if (root.finishedExpirationTime === suspendedTime) {
    // If there's a pending fallback waiting to commit, throw it away.
    root.finishedExpirationTime = NoWork;
    root.finishedWork = null;
  }

  var currentTime = requestCurrentTime();
  var priorityLevel = inferPriorityFromExpirationTime(currentTime, suspendedTime);
  scheduleCallbackForRoot(root, priorityLevel, suspendedTime);
}

function retryTimedOutBoundary(boundaryFiber) {
  // The boundary fiber (a Suspense component or SuspenseList component)
  // previously was rendered in its fallback state. One of the promises that
  // suspended it has resolved, which means at least part of the tree was
  // likely unblocked. Try rendering again, at a new expiration time.
  var currentTime = requestCurrentTime();
  var suspenseConfig = null; // Retries don't carry over the already committed update.
  var retryTime = computeExpirationForFiber(currentTime, boundaryFiber, suspenseConfig);
  // TODO: Special case idle priority?
  var priorityLevel = inferPriorityFromExpirationTime(currentTime, retryTime);
  var root = markUpdateTimeFromFiberToRoot(boundaryFiber, retryTime);
  if (root !== null) {
    scheduleCallbackForRoot(root, priorityLevel, retryTime);
  }
}

function resolveRetryThenable(boundaryFiber, thenable) {
  var retryCache = void 0;
  if (enableSuspenseServerRenderer) {
    switch (boundaryFiber.tag) {
      case SuspenseComponent:
        retryCache = boundaryFiber.stateNode;
        break;
      case DehydratedSuspenseComponent:
        retryCache = boundaryFiber.memoizedState;
        break;
      default:
        (function () {
          {
            {
              throw ReactError(Error('Pinged unknown suspense boundary type. This is probably a bug in React.'));
            }
          }
        })();
    }
  } else {
    retryCache = boundaryFiber.stateNode;
  }

  if (retryCache !== null) {
    // The thenable resolved, so we no longer need to memoize, because it will
    // never be thrown again.
    retryCache.delete(thenable);
  }

  retryTimedOutBoundary(boundaryFiber);
}

// Computes the next Just Noticeable Difference (JND) boundary.
// The theory is that a person can't tell the difference between small differences in time.
// Therefore, if we wait a bit longer than necessary that won't translate to a noticeable
// difference in the experience. However, waiting for longer might mean that we can avoid
// showing an intermediate loading state. The longer we have already waited, the harder it
// is to tell small differences in time. Therefore, the longer we've already waited,
// the longer we can wait additionally. At some point we have to give up though.
// We pick a train model where the next boundary commits at a consistent schedule.
// These particular numbers are vague estimates. We expect to adjust them based on research.
function jnd(timeElapsed) {
  return timeElapsed < 120 ? 120 : timeElapsed < 480 ? 480 : timeElapsed < 1080 ? 1080 : timeElapsed < 1920 ? 1920 : timeElapsed < 3000 ? 3000 : timeElapsed < 4320 ? 4320 : ceil(timeElapsed / 1960) * 1960;
}

function computeMsUntilSuspenseLoadingDelay(mostRecentEventTime, committedExpirationTime, suspenseConfig) {
  var busyMinDurationMs = suspenseConfig.busyMinDurationMs | 0;
  if (busyMinDurationMs <= 0) {
    return 0;
  }
  var busyDelayMs = suspenseConfig.busyDelayMs | 0;

  // Compute the time until this render pass would expire.
  var currentTimeMs = now();
  var eventTimeMs = inferTimeFromExpirationTimeWithSuspenseConfig(mostRecentEventTime, suspenseConfig);
  var timeElapsed = currentTimeMs - eventTimeMs;
  if (timeElapsed <= busyDelayMs) {
    // If we haven't yet waited longer than the initial delay, we don't
    // have to wait any additional time.
    return 0;
  }
  var msUntilTimeout = busyDelayMs + busyMinDurationMs - timeElapsed;
  // This is the value that is passed to `setTimeout`.
  return msUntilTimeout;
}

function checkForNestedUpdates() {
  if (nestedUpdateCount > NESTED_UPDATE_LIMIT) {
    nestedUpdateCount = 0;
    rootWithNestedUpdates = null;
    (function () {
      {
        {
          throw ReactError(Error('Maximum update depth exceeded. This can happen when a component repeatedly calls setState inside componentWillUpdate or componentDidUpdate. React limits the number of nested updates to prevent infinite loops.'));
        }
      }
    })();
  }

  {
    if (nestedPassiveUpdateCount > NESTED_PASSIVE_UPDATE_LIMIT) {
      nestedPassiveUpdateCount = 0;
      warning$1(false, 'Maximum update depth exceeded. This can happen when a component ' + "calls setState inside useEffect, but useEffect either doesn't " + 'have a dependency array, or one of the dependencies changes on ' + 'every render.');
    }
  }
}

function flushRenderPhaseStrictModeWarningsInDEV() {
  {
    ReactStrictModeWarnings.flushLegacyContextWarning();

    if (warnAboutDeprecatedLifecycles) {
      ReactStrictModeWarnings.flushPendingUnsafeLifecycleWarnings();
    }
  }
}

function stopFinishedWorkLoopTimer() {
  var didCompleteRoot = true;
  stopWorkLoopTimer(interruptedBy, didCompleteRoot);
  interruptedBy = null;
}

function stopInterruptedWorkLoopTimer() {
  // TODO: Track which fiber caused the interruption.
  var didCompleteRoot = false;
  stopWorkLoopTimer(interruptedBy, didCompleteRoot);
  interruptedBy = null;
}

function checkForInterruption(fiberThatReceivedUpdate, updateExpirationTime) {
  if (enableUserTimingAPI && workInProgressRoot !== null && updateExpirationTime > renderExpirationTime) {
    interruptedBy = fiberThatReceivedUpdate;
  }
}

var didWarnStateUpdateForUnmountedComponent = null;
function warnAboutUpdateOnUnmountedFiberInDEV(fiber) {
  {
    var tag = fiber.tag;
    if (tag !== HostRoot && tag !== ClassComponent && tag !== FunctionComponent && tag !== ForwardRef && tag !== MemoComponent && tag !== SimpleMemoComponent) {
      // Only warn for user-defined components, not internal ones like Suspense.
      return;
    }
    // We show the whole stack but dedupe on the top component's name because
    // the problematic code almost always lies inside that component.
    var componentName = getComponentName(fiber.type) || 'ReactComponent';
    if (didWarnStateUpdateForUnmountedComponent !== null) {
      if (didWarnStateUpdateForUnmountedComponent.has(componentName)) {
        return;
      }
      didWarnStateUpdateForUnmountedComponent.add(componentName);
    } else {
      didWarnStateUpdateForUnmountedComponent = new Set([componentName]);
    }
    warningWithoutStack$1(false, "Can't perform a React state update on an unmounted component. This " + 'is a no-op, but it indicates a memory leak in your application. To ' + 'fix, cancel all subscriptions and asynchronous tasks in %s.%s', tag === ClassComponent ? 'the componentWillUnmount method' : 'a useEffect cleanup function', getStackByFiberInDevAndProd(fiber));
  }
}

var beginWork$$1 = void 0;
if (true && replayFailedUnitOfWorkWithInvokeGuardedCallback) {
  var dummyFiber = null;
  beginWork$$1 = function (current$$1, unitOfWork, expirationTime) {
    // If a component throws an error, we replay it again in a synchronously
    // dispatched event, so that the debugger will treat it as an uncaught
    // error See ReactErrorUtils for more information.

    // Before entering the begin phase, copy the work-in-progress onto a dummy
    // fiber. If beginWork throws, we'll use this to reset the state.
    var originalWorkInProgressCopy = assignFiberPropertiesInDEV(dummyFiber, unitOfWork);
    try {
      return beginWork$1(current$$1, unitOfWork, expirationTime);
    } catch (originalError) {
      if (originalError !== null && typeof originalError === 'object' && typeof originalError.then === 'function') {
        // Don't replay promises. Treat everything else like an error.
        throw originalError;
      }

      // Keep this code in sync with renderRoot; any changes here must have
      // corresponding changes there.
      resetContextDependencies();
      resetHooks();

      // Unwind the failed stack frame
      unwindInterruptedWork(unitOfWork);

      // Restore the original properties of the fiber.
      assignFiberPropertiesInDEV(unitOfWork, originalWorkInProgressCopy);

      if (enableProfilerTimer && unitOfWork.mode & ProfileMode) {
        // Reset the profiler timer.
        startProfilerTimer(unitOfWork);
      }

      // Run beginWork again.
      invokeGuardedCallback(null, beginWork$1, null, current$$1, unitOfWork, expirationTime);

      if (hasCaughtError()) {
        var replayError = clearCaughtError();
        // `invokeGuardedCallback` sometimes sets an expando `_suppressLogging`.
        // Rethrow this error instead of the original one.
        throw replayError;
      } else {
        // This branch is reachable if the render phase is impure.
        throw originalError;
      }
    }
  };
} else {
  beginWork$$1 = beginWork$1;
}

var didWarnAboutUpdateInRender = false;
var didWarnAboutUpdateInGetChildContext = false;
function warnAboutInvalidUpdatesOnClassComponentsInDEV(fiber) {
  {
    if (fiber.tag === ClassComponent) {
      switch (phase) {
        case 'getChildContext':
          if (didWarnAboutUpdateInGetChildContext) {
            return;
          }
          warningWithoutStack$1(false, 'setState(...): Cannot call setState() inside getChildContext()');
          didWarnAboutUpdateInGetChildContext = true;
          break;
        case 'render':
          if (didWarnAboutUpdateInRender) {
            return;
          }
          warningWithoutStack$1(false, 'Cannot update during an existing state transition (such as ' + 'within `render`). Render methods should be a pure function of ' + 'props and state.');
          didWarnAboutUpdateInRender = true;
          break;
      }
    }
  }
}

// a 'shared' variable that changes when act() opens/closes in tests.
var IsThisRendererActing = { current: false };

function warnIfNotScopedWithMatchingAct(fiber) {
  {
    if (warnsIfNotActing === true && IsSomeRendererActing.current === true && IsThisRendererActing.current !== true) {
      warningWithoutStack$1(false, "It looks like you're using the wrong act() around your test interactions.\n" + 'Be sure to use the matching version of act() corresponding to your renderer:\n\n' + '// for react-dom:\n' + "import {act} from 'react-dom/test-utils';\n" + '//...\n' + 'act(() => ...);\n\n' + '// for react-test-renderer:\n' + "import TestRenderer from 'react-test-renderer';\n" + 'const {act} = TestRenderer;\n' + '//...\n' + 'act(() => ...);' + '%s', getStackByFiberInDevAndProd(fiber));
    }
  }
}

function warnIfNotCurrentlyActingEffectsInDEV(fiber) {
  {
    if (warnsIfNotActing === true && (fiber.mode & StrictMode) !== NoMode && IsSomeRendererActing.current === false && IsThisRendererActing.current === false) {
      warningWithoutStack$1(false, 'An update to %s ran an effect, but was not wrapped in act(...).\n\n' + 'When testing, code that causes React state updates should be ' + 'wrapped into act(...):\n\n' + 'act(() => {\n' + '  /* fire events that update state */\n' + '});\n' + '/* assert on the output */\n\n' + "This ensures that you're testing the behavior the user would see " + 'in the browser.' + ' Learn more at https://fb.me/react-wrap-tests-with-act' + '%s', getComponentName(fiber.type), getStackByFiberInDevAndProd(fiber));
    }
  }
}

function warnIfNotCurrentlyActingUpdatesInDEV(fiber) {
  {
    if (warnsIfNotActing === true && executionContext === NoContext && IsSomeRendererActing.current === false && IsThisRendererActing.current === false) {
      warningWithoutStack$1(false, 'An update to %s inside a test was not wrapped in act(...).\n\n' + 'When testing, code that causes React state updates should be ' + 'wrapped into act(...):\n\n' + 'act(() => {\n' + '  /* fire events that update state */\n' + '});\n' + '/* assert on the output */\n\n' + "This ensures that you're testing the behavior the user would see " + 'in the browser.' + ' Learn more at https://fb.me/react-wrap-tests-with-act' + '%s', getComponentName(fiber.type), getStackByFiberInDevAndProd(fiber));
    }
  }
}

var warnIfNotCurrentlyActingUpdatesInDev = warnIfNotCurrentlyActingUpdatesInDEV;

// In tests, we want to enforce a mocked scheduler.
var didWarnAboutUnmockedScheduler = false;
// TODO Before we release concurrent mode, revisit this and decide whether a mocked
// scheduler is the actual recommendation. The alternative could be a testing build,
// a new lib, or whatever; we dunno just yet. This message is for early adopters
// to get their tests right.

function warnIfUnmockedScheduler(fiber) {
  {
    if (didWarnAboutUnmockedScheduler === false && Scheduler.unstable_flushAllWithoutAsserting === undefined) {
      if (fiber.mode & BatchedMode || fiber.mode & ConcurrentMode) {
        didWarnAboutUnmockedScheduler = true;
        warningWithoutStack$1(false, 'In Concurrent or Sync modes, the "scheduler" module needs to be mocked ' + 'to guarantee consistent behaviour across tests and browsers. ' + 'For example, with jest: \n' + "jest.mock('scheduler', () => require('scheduler/unstable_mock'));\n\n" + 'For more info, visit https://fb.me/react-mock-scheduler');
      } else if (warnAboutUnmockedScheduler === true) {
        didWarnAboutUnmockedScheduler = true;
        warningWithoutStack$1(false, 'Starting from React v17, the "scheduler" module will need to be mocked ' + 'to guarantee consistent behaviour across tests and browsers. ' + 'For example, with jest: \n' + "jest.mock('scheduler', () => require('scheduler/unstable_mock'));\n\n" + 'For more info, visit https://fb.me/react-mock-scheduler');
      }
    }
  }
}

var componentsThatTriggeredHighPriSuspend = null;
function checkForWrongSuspensePriorityInDEV(sourceFiber) {
  {
    var currentPriorityLevel = getCurrentPriorityLevel();
    if ((sourceFiber.mode & ConcurrentMode) !== NoEffect && (currentPriorityLevel === UserBlockingPriority$2 || currentPriorityLevel === ImmediatePriority)) {
      var workInProgressNode = sourceFiber;
      while (workInProgressNode !== null) {
        // Add the component that triggered the suspense
        var current$$1 = workInProgressNode.alternate;
        if (current$$1 !== null) {
          // TODO: warn component that triggers the high priority
          // suspend is the HostRoot
          switch (workInProgressNode.tag) {
            case ClassComponent:
              // Loop through the component's update queue and see whether the component
              // has triggered any high priority updates
              var updateQueue = current$$1.updateQueue;
              if (updateQueue !== null) {
                var update = updateQueue.firstUpdate;
                while (update !== null) {
                  var priorityLevel = update.priority;
                  if (priorityLevel === UserBlockingPriority$2 || priorityLevel === ImmediatePriority) {
                    if (componentsThatTriggeredHighPriSuspend === null) {
                      componentsThatTriggeredHighPriSuspend = new Set([getComponentName(workInProgressNode.type)]);
                    } else {
                      componentsThatTriggeredHighPriSuspend.add(getComponentName(workInProgressNode.type));
                    }
                    break;
                  }
                  update = update.next;
                }
              }
              break;
            case FunctionComponent:
            case ForwardRef:
            case SimpleMemoComponent:
              if (workInProgressNode.memoizedState !== null && workInProgressNode.memoizedState.baseUpdate !== null) {
                var _update = workInProgressNode.memoizedState.baseUpdate;
                // Loop through the functional component's memoized state to see whether
                // the component has triggered any high pri updates
                while (_update !== null) {
                  var priority = _update.priority;
                  if (priority === UserBlockingPriority$2 || priority === ImmediatePriority) {
                    if (componentsThatTriggeredHighPriSuspend === null) {
                      componentsThatTriggeredHighPriSuspend = new Set([getComponentName(workInProgressNode.type)]);
                    } else {
                      componentsThatTriggeredHighPriSuspend.add(getComponentName(workInProgressNode.type));
                    }
                    break;
                  }
                  if (_update.next === workInProgressNode.memoizedState.baseUpdate) {
                    break;
                  }
                  _update = _update.next;
                }
              }
              break;
            default:
              break;
          }
        }
        workInProgressNode = workInProgressNode.return;
      }
    }
  }
}

function flushSuspensePriorityWarningInDEV() {
  {
    if (componentsThatTriggeredHighPriSuspend !== null) {
      var componentNames = [];
      componentsThatTriggeredHighPriSuspend.forEach(function (name) {
        return componentNames.push(name);
      });
      componentsThatTriggeredHighPriSuspend = null;

      if (componentNames.length > 0) {
        warningWithoutStack$1(false, '%s triggered a user-blocking update that suspended.' + '\n\n' + 'The fix is to split the update into multiple parts: a user-blocking ' + 'update to provide immediate feedback, and another update that ' + 'triggers the bulk of the changes.' + '\n\n' + 'Refer to the documentation for useSuspenseTransition to learn how ' + 'to implement this pattern.',
        // TODO: Add link to React docs with more information, once it exists
        componentNames.sort().join(', '));
      }
    }
  }
}

function computeThreadID(root, expirationTime) {
  // Interaction threads are unique per root and expiration time.
  return expirationTime * 1000 + root.interactionThreadID;
}

function markSpawnedWork(expirationTime) {
  if (!enableSchedulerTracing) {
    return;
  }
  if (spawnedWorkDuringRender === null) {
    spawnedWorkDuringRender = [expirationTime];
  } else {
    spawnedWorkDuringRender.push(expirationTime);
  }
}

function scheduleInteractions(root, expirationTime, interactions) {
  if (!enableSchedulerTracing) {
    return;
  }

  if (interactions.size > 0) {
    var pendingInteractionMap = root.pendingInteractionMap;
    var pendingInteractions = pendingInteractionMap.get(expirationTime);
    if (pendingInteractions != null) {
      interactions.forEach(function (interaction) {
        if (!pendingInteractions.has(interaction)) {
          // Update the pending async work count for previously unscheduled interaction.
          interaction.__count++;
        }

        pendingInteractions.add(interaction);
      });
    } else {
      pendingInteractionMap.set(expirationTime, new Set(interactions));

      // Update the pending async work count for the current interactions.
      interactions.forEach(function (interaction) {
        interaction.__count++;
      });
    }

    var subscriber = tracing.__subscriberRef.current;
    if (subscriber !== null) {
      var threadID = computeThreadID(root, expirationTime);
      subscriber.onWorkScheduled(interactions, threadID);
    }
  }
}

function schedulePendingInteractions(root, expirationTime) {
  // This is called when work is scheduled on a root.
  // It associates the current interactions with the newly-scheduled expiration.
  // They will be restored when that expiration is later committed.
  if (!enableSchedulerTracing) {
    return;
  }

  scheduleInteractions(root, expirationTime, tracing.__interactionsRef.current);
}

function startWorkOnPendingInteractions(root, expirationTime) {
  // This is called when new work is started on a root.
  if (!enableSchedulerTracing) {
    return;
  }

  // Determine which interactions this batch of work currently includes, So that
  // we can accurately attribute time spent working on it, And so that cascading
  // work triggered during the render phase will be associated with it.
  var interactions = new Set();
  root.pendingInteractionMap.forEach(function (scheduledInteractions, scheduledExpirationTime) {
    if (scheduledExpirationTime >= expirationTime) {
      scheduledInteractions.forEach(function (interaction) {
        return interactions.add(interaction);
      });
    }
  });

  // Store the current set of interactions on the FiberRoot for a few reasons:
  // We can re-use it in hot functions like renderRoot() without having to
  // recalculate it. We will also use it in commitWork() to pass to any Profiler
  // onRender() hooks. This also provides DevTools with a way to access it when
  // the onCommitRoot() hook is called.
  root.memoizedInteractions = interactions;

  if (interactions.size > 0) {
    var subscriber = tracing.__subscriberRef.current;
    if (subscriber !== null) {
      var threadID = computeThreadID(root, expirationTime);
      try {
        subscriber.onWorkStarted(interactions, threadID);
      } catch (error) {
        // If the subscriber throws, rethrow it in a separate task
        scheduleCallback(ImmediatePriority, function () {
          throw error;
        });
      }
    }
  }
}

function finishPendingInteractions(root, committedExpirationTime) {
  if (!enableSchedulerTracing) {
    return;
  }

  var earliestRemainingTimeAfterCommit = root.firstPendingTime;

  var subscriber = void 0;

  try {
    subscriber = tracing.__subscriberRef.current;
    if (subscriber !== null && root.memoizedInteractions.size > 0) {
      var threadID = computeThreadID(root, committedExpirationTime);
      subscriber.onWorkStopped(root.memoizedInteractions, threadID);
    }
  } catch (error) {
    // If the subscriber throws, rethrow it in a separate task
    scheduleCallback(ImmediatePriority, function () {
      throw error;
    });
  } finally {
    // Clear completed interactions from the pending Map.
    // Unless the render was suspended or cascading work was scheduled,
    // In which case– leave pending interactions until the subsequent render.
    var pendingInteractionMap = root.pendingInteractionMap;
    pendingInteractionMap.forEach(function (scheduledInteractions, scheduledExpirationTime) {
      // Only decrement the pending interaction count if we're done.
      // If there's still work at the current priority,
      // That indicates that we are waiting for suspense data.
      if (scheduledExpirationTime > earliestRemainingTimeAfterCommit) {
        pendingInteractionMap.delete(scheduledExpirationTime);

        scheduledInteractions.forEach(function (interaction) {
          interaction.__count--;

          if (subscriber !== null && interaction.__count === 0) {
            try {
              subscriber.onInteractionScheduledWorkCompleted(interaction);
            } catch (error) {
              // If the subscriber throws, rethrow it in a separate task
              scheduleCallback(ImmediatePriority, function () {
                throw error;
              });
            }
          }
        });
      }
    });
  }
}

var onCommitFiberRoot = null;
var onCommitFiberUnmount = null;
var hasLoggedError = false;

var isDevToolsPresent = typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ !== 'undefined';

function injectInternals(internals) {
  if (typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ === 'undefined') {
    // No DevTools
    return false;
  }
  var hook = __REACT_DEVTOOLS_GLOBAL_HOOK__;
  if (hook.isDisabled) {
    // This isn't a real property on the hook, but it can be set to opt out
    // of DevTools integration and associated warnings and logs.
    // https://github.com/facebook/react/issues/3877
    return true;
  }
  if (!hook.supportsFiber) {
    {
      warningWithoutStack$1(false, 'The installed version of React DevTools is too old and will not work ' + 'with the current version of React. Please update React DevTools. ' + 'https://fb.me/react-devtools');
    }
    // DevTools exists, even though it doesn't support Fiber.
    return true;
  }
  try {
    var rendererID = hook.inject(internals);
    // We have successfully injected, so now it is safe to set up hooks.
    onCommitFiberRoot = function (root, expirationTime) {
      try {
        var didError = (root.current.effectTag & DidCapture) === DidCapture;
        if (enableProfilerTimer) {
          var currentTime = requestCurrentTime();
          var priorityLevel = inferPriorityFromExpirationTime(currentTime, expirationTime);
          hook.onCommitFiberRoot(rendererID, root, priorityLevel, didError);
        } else {
          hook.onCommitFiberRoot(rendererID, root, undefined, didError);
        }
      } catch (err) {
        if (true && !hasLoggedError) {
          hasLoggedError = true;
          warningWithoutStack$1(false, 'React DevTools encountered an error: %s', err);
        }
      }
    };
    onCommitFiberUnmount = function (fiber) {
      try {
        hook.onCommitFiberUnmount(rendererID, fiber);
      } catch (err) {
        if (true && !hasLoggedError) {
          hasLoggedError = true;
          warningWithoutStack$1(false, 'React DevTools encountered an error: %s', err);
        }
      }
    };
  } catch (err) {
    // Catch all errors because it is unsafe to throw during initialization.
    {
      warningWithoutStack$1(false, 'React DevTools encountered an error: %s.', err);
    }
  }
  // DevTools exists
  return true;
}

function onCommitRoot(root, expirationTime) {
  if (typeof onCommitFiberRoot === 'function') {
    onCommitFiberRoot(root, expirationTime);
  }
}

function onCommitUnmount(fiber) {
  if (typeof onCommitFiberUnmount === 'function') {
    onCommitFiberUnmount(fiber);
  }
}

var hasBadMapPolyfill = void 0;

{
  hasBadMapPolyfill = false;
  try {
    var nonExtensibleObject = Object.preventExtensions({});
    var testMap = new Map([[nonExtensibleObject, null]]);
    var testSet = new Set([nonExtensibleObject]);
    // This is necessary for Rollup to not consider these unused.
    // https://github.com/rollup/rollup/issues/1771
    // TODO: we can remove these if Rollup fixes the bug.
    testMap.set(0, 0);
    testSet.add(0);
  } catch (e) {
    // TODO: Consider warning about bad polyfills
    hasBadMapPolyfill = true;
  }
}

// A Fiber is work on a Component that needs to be done or was done. There can
// be more than one per component.


var debugCounter = void 0;

{
  debugCounter = 1;
}

function FiberNode(tag, pendingProps, key, mode) {
  // Instance
  this.tag = tag;
  this.key = key;
  this.elementType = null;
  this.type = null;
  this.stateNode = null;

  // Fiber
  this.return = null;
  this.child = null;
  this.sibling = null;
  this.index = 0;

  this.ref = null;

  this.pendingProps = pendingProps;
  this.memoizedProps = null;
  this.updateQueue = null;
  this.memoizedState = null;
  this.dependencies = null;

  this.mode = mode;

  // Effects
  this.effectTag = NoEffect;
  this.nextEffect = null;

  this.firstEffect = null;
  this.lastEffect = null;

  this.expirationTime = NoWork;
  this.childExpirationTime = NoWork;

  this.alternate = null;

  if (enableProfilerTimer) {
    // Note: The following is done to avoid a v8 performance cliff.
    //
    // Initializing the fields below to smis and later updating them with
    // double values will cause Fibers to end up having separate shapes.
    // This behavior/bug has something to do with Object.preventExtension().
    // Fortunately this only impacts DEV builds.
    // Unfortunately it makes React unusably slow for some applications.
    // To work around this, initialize the fields below with doubles.
    //
    // Learn more about this here:
    // https://github.com/facebook/react/issues/14365
    // https://bugs.chromium.org/p/v8/issues/detail?id=8538
    this.actualDuration = Number.NaN;
    this.actualStartTime = Number.NaN;
    this.selfBaseDuration = Number.NaN;
    this.treeBaseDuration = Number.NaN;

    // It's okay to replace the initial doubles with smis after initialization.
    // This won't trigger the performance cliff mentioned above,
    // and it simplifies other profiler code (including DevTools).
    this.actualDuration = 0;
    this.actualStartTime = -1;
    this.selfBaseDuration = 0;
    this.treeBaseDuration = 0;
  }

  {
    this._debugID = debugCounter++;
    this._debugSource = null;
    this._debugOwner = null;
    this._debugIsCurrentlyTiming = false;
    this._debugNeedsRemount = false;
    this._debugHookTypes = null;
    if (!hasBadMapPolyfill && typeof Object.preventExtensions === 'function') {
      Object.preventExtensions(this);
    }
  }
}

// This is a constructor function, rather than a POJO constructor, still
// please ensure we do the following:
// 1) Nobody should add any instance methods on this. Instance methods can be
//    more difficult to predict when they get optimized and they are almost
//    never inlined properly in static compilers.
// 2) Nobody should rely on `instanceof Fiber` for type testing. We should
//    always know when it is a fiber.
// 3) We might want to experiment with using numeric keys since they are easier
//    to optimize in a non-JIT environment.
// 4) We can easily go from a constructor to a createFiber object literal if that
//    is faster.
// 5) It should be easy to port this to a C struct and keep a C implementation
//    compatible.
var createFiber = function (tag, pendingProps, key, mode) {
  // $FlowFixMe: the shapes are exact here but Flow doesn't like constructors
  return new FiberNode(tag, pendingProps, key, mode);
};

function shouldConstruct(Component) {
  var prototype = Component.prototype;
  return !!(prototype && prototype.isReactComponent);
}

function isSimpleFunctionComponent(type) {
  return typeof type === 'function' && !shouldConstruct(type) && type.defaultProps === undefined;
}

function resolveLazyComponentTag(Component) {
  if (typeof Component === 'function') {
    return shouldConstruct(Component) ? ClassComponent : FunctionComponent;
  } else if (Component !== undefined && Component !== null) {
    var $$typeof = Component.$$typeof;
    if ($$typeof === REACT_FORWARD_REF_TYPE) {
      return ForwardRef;
    }
    if ($$typeof === REACT_MEMO_TYPE) {
      return MemoComponent;
    }
  }
  return IndeterminateComponent;
}

// This is used to create an alternate fiber to do work on.
function createWorkInProgress(current, pendingProps, expirationTime) {
  var workInProgress = current.alternate;
  if (workInProgress === null) {
    // We use a double buffering pooling technique because we know that we'll
    // only ever need at most two versions of a tree. We pool the "other" unused
    // node that we're free to reuse. This is lazily created to avoid allocating
    // extra objects for things that are never updated. It also allow us to
    // reclaim the extra memory if needed.
    workInProgress = createFiber(current.tag, pendingProps, current.key, current.mode);
    workInProgress.elementType = current.elementType;
    workInProgress.type = current.type;
    workInProgress.stateNode = current.stateNode;

    {
      // DEV-only fields
      workInProgress._debugID = current._debugID;
      workInProgress._debugSource = current._debugSource;
      workInProgress._debugOwner = current._debugOwner;
      workInProgress._debugHookTypes = current._debugHookTypes;
    }

    workInProgress.alternate = current;
    current.alternate = workInProgress;
  } else {
    workInProgress.pendingProps = pendingProps;

    // We already have an alternate.
    // Reset the effect tag.
    workInProgress.effectTag = NoEffect;

    // The effect list is no longer valid.
    workInProgress.nextEffect = null;
    workInProgress.firstEffect = null;
    workInProgress.lastEffect = null;

    if (enableProfilerTimer) {
      // We intentionally reset, rather than copy, actualDuration & actualStartTime.
      // This prevents time from endlessly accumulating in new commits.
      // This has the downside of resetting values for different priority renders,
      // But works for yielding (the common case) and should support resuming.
      workInProgress.actualDuration = 0;
      workInProgress.actualStartTime = -1;
    }
  }

  workInProgress.childExpirationTime = current.childExpirationTime;
  workInProgress.expirationTime = current.expirationTime;

  workInProgress.child = current.child;
  workInProgress.memoizedProps = current.memoizedProps;
  workInProgress.memoizedState = current.memoizedState;
  workInProgress.updateQueue = current.updateQueue;

  // Clone the dependencies object. This is mutated during the render phase, so
  // it cannot be shared with the current fiber.
  var currentDependencies = current.dependencies;
  workInProgress.dependencies = currentDependencies === null ? null : {
    expirationTime: currentDependencies.expirationTime,
    firstContext: currentDependencies.firstContext,
    responders: currentDependencies.responders
  };

  // These will be overridden during the parent's reconciliation
  workInProgress.sibling = current.sibling;
  workInProgress.index = current.index;
  workInProgress.ref = current.ref;

  if (enableProfilerTimer) {
    workInProgress.selfBaseDuration = current.selfBaseDuration;
    workInProgress.treeBaseDuration = current.treeBaseDuration;
  }

  {
    workInProgress._debugNeedsRemount = current._debugNeedsRemount;
    switch (workInProgress.tag) {
      case IndeterminateComponent:
      case FunctionComponent:
      case SimpleMemoComponent:
        workInProgress.type = resolveFunctionForHotReloading(current.type);
        break;
      case ClassComponent:
        workInProgress.type = resolveClassForHotReloading(current.type);
        break;
      case ForwardRef:
        workInProgress.type = resolveForwardRefForHotReloading(current.type);
        break;
      default:
        break;
    }
  }

  return workInProgress;
}

// Used to reuse a Fiber for a second pass.
function resetWorkInProgress(workInProgress, renderExpirationTime) {
  // This resets the Fiber to what createFiber or createWorkInProgress would
  // have set the values to before during the first pass. Ideally this wouldn't
  // be necessary but unfortunately many code paths reads from the workInProgress
  // when they should be reading from current and writing to workInProgress.

  // We assume pendingProps, index, key, ref, return are still untouched to
  // avoid doing another reconciliation.

  // Reset the effect tag but keep any Placement tags, since that's something
  // that child fiber is setting, not the reconciliation.
  workInProgress.effectTag &= Placement;

  // The effect list is no longer valid.
  workInProgress.nextEffect = null;
  workInProgress.firstEffect = null;
  workInProgress.lastEffect = null;

  var current = workInProgress.alternate;
  if (current === null) {
    // Reset to createFiber's initial values.
    workInProgress.childExpirationTime = NoWork;
    workInProgress.expirationTime = renderExpirationTime;

    workInProgress.child = null;
    workInProgress.memoizedProps = null;
    workInProgress.memoizedState = null;
    workInProgress.updateQueue = null;

    workInProgress.dependencies = null;

    if (enableProfilerTimer) {
      // Note: We don't reset the actualTime counts. It's useful to accumulate
      // actual time across multiple render passes.
      workInProgress.selfBaseDuration = 0;
      workInProgress.treeBaseDuration = 0;
    }
  } else {
    // Reset to the cloned values that createWorkInProgress would've.
    workInProgress.childExpirationTime = current.childExpirationTime;
    workInProgress.expirationTime = current.expirationTime;

    workInProgress.child = current.child;
    workInProgress.memoizedProps = current.memoizedProps;
    workInProgress.memoizedState = current.memoizedState;
    workInProgress.updateQueue = current.updateQueue;

    // Clone the dependencies object. This is mutated during the render phase, so
    // it cannot be shared with the current fiber.
    var currentDependencies = current.dependencies;
    workInProgress.dependencies = currentDependencies === null ? null : {
      expirationTime: currentDependencies.expirationTime,
      firstContext: currentDependencies.firstContext,
      responders: currentDependencies.responders
    };

    if (enableProfilerTimer) {
      // Note: We don't reset the actualTime counts. It's useful to accumulate
      // actual time across multiple render passes.
      workInProgress.selfBaseDuration = current.selfBaseDuration;
      workInProgress.treeBaseDuration = current.treeBaseDuration;
    }
  }

  return workInProgress;
}

function createHostRootFiber(tag) {
  var mode = void 0;
  if (tag === ConcurrentRoot) {
    mode = ConcurrentMode | BatchedMode | StrictMode;
  } else if (tag === BatchedRoot) {
    mode = BatchedMode | StrictMode;
  } else {
    mode = NoMode;
  }

  if (enableProfilerTimer && isDevToolsPresent) {
    // Always collect profile timings when DevTools are present.
    // This enables DevTools to start capturing timing at any point–
    // Without some nodes in the tree having empty base times.
    mode |= ProfileMode;
  }

  return createFiber(HostRoot, null, null, mode);
}

function createFiberFromTypeAndProps(type, // React$ElementType
key, pendingProps, owner, mode, expirationTime) {
  var fiber = void 0;

  var fiberTag = IndeterminateComponent;
  // The resolved type is set if we know what the final type will be. I.e. it's not lazy.
  var resolvedType = type;
  if (typeof type === 'function') {
    if (shouldConstruct(type)) {
      fiberTag = ClassComponent;
      {
        resolvedType = resolveClassForHotReloading(resolvedType);
      }
    } else {
      {
        resolvedType = resolveFunctionForHotReloading(resolvedType);
      }
    }
  } else if (typeof type === 'string') {
    fiberTag = HostComponent;
  } else {
    getTag: switch (type) {
      case REACT_FRAGMENT_TYPE:
        return createFiberFromFragment(pendingProps.children, mode, expirationTime, key);
      case REACT_CONCURRENT_MODE_TYPE:
        fiberTag = Mode;
        mode |= ConcurrentMode | BatchedMode | StrictMode;
        break;
      case REACT_STRICT_MODE_TYPE:
        fiberTag = Mode;
        mode |= StrictMode;
        break;
      case REACT_PROFILER_TYPE:
        return createFiberFromProfiler(pendingProps, mode, expirationTime, key);
      case REACT_SUSPENSE_TYPE:
        return createFiberFromSuspense(pendingProps, mode, expirationTime, key);
      case REACT_SUSPENSE_LIST_TYPE:
        return createFiberFromSuspenseList(pendingProps, mode, expirationTime, key);
      default:
        {
          if (typeof type === 'object' && type !== null) {
            switch (type.$$typeof) {
              case REACT_PROVIDER_TYPE:
                fiberTag = ContextProvider;
                break getTag;
              case REACT_CONTEXT_TYPE:
                // This is a consumer
                fiberTag = ContextConsumer;
                break getTag;
              case REACT_FORWARD_REF_TYPE:
                fiberTag = ForwardRef;
                {
                  resolvedType = resolveForwardRefForHotReloading(resolvedType);
                }
                break getTag;
              case REACT_MEMO_TYPE:
                fiberTag = MemoComponent;
                break getTag;
              case REACT_LAZY_TYPE:
                fiberTag = LazyComponent;
                resolvedType = null;
                break getTag;
              case REACT_FUNDAMENTAL_TYPE:
                if (enableFundamentalAPI) {
                  return createFiberFromFundamental(type, pendingProps, mode, expirationTime, key);
                }
                break;
            }
          }
          var info = '';
          {
            if (type === undefined || typeof type === 'object' && type !== null && Object.keys(type).length === 0) {
              info += ' You likely forgot to export your component from the file ' + "it's defined in, or you might have mixed up default and " + 'named imports.';
            }
            var ownerName = owner ? getComponentName(owner.type) : null;
            if (ownerName) {
              info += '\n\nCheck the render method of `' + ownerName + '`.';
            }
          }
          (function () {
            {
              {
                throw ReactError(Error('Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: ' + (type == null ? type : typeof type) + '.' + info));
              }
            }
          })();
        }
    }
  }

  fiber = createFiber(fiberTag, pendingProps, key, mode);
  fiber.elementType = type;
  fiber.type = resolvedType;
  fiber.expirationTime = expirationTime;

  return fiber;
}

function createFiberFromElement(element, mode, expirationTime) {
  var owner = null;
  {
    owner = element._owner;
  }
  var type = element.type;
  var key = element.key;
  var pendingProps = element.props;
  var fiber = createFiberFromTypeAndProps(type, key, pendingProps, owner, mode, expirationTime);
  {
    fiber._debugSource = element._source;
    fiber._debugOwner = element._owner;
  }
  return fiber;
}

function createFiberFromFragment(elements, mode, expirationTime, key) {
  var fiber = createFiber(Fragment, elements, key, mode);
  fiber.expirationTime = expirationTime;
  return fiber;
}

function createFiberFromFundamental(fundamentalComponent, pendingProps, mode, expirationTime, key) {
  var fiber = createFiber(FundamentalComponent, pendingProps, key, mode);
  fiber.elementType = fundamentalComponent;
  fiber.type = fundamentalComponent;
  fiber.expirationTime = expirationTime;
  return fiber;
}

function createFiberFromProfiler(pendingProps, mode, expirationTime, key) {
  {
    if (typeof pendingProps.id !== 'string' || typeof pendingProps.onRender !== 'function') {
      warningWithoutStack$1(false, 'Profiler must specify an "id" string and "onRender" function as props');
    }
  }

  var fiber = createFiber(Profiler, pendingProps, key, mode | ProfileMode);
  // TODO: The Profiler fiber shouldn't have a type. It has a tag.
  fiber.elementType = REACT_PROFILER_TYPE;
  fiber.type = REACT_PROFILER_TYPE;
  fiber.expirationTime = expirationTime;

  return fiber;
}

function createFiberFromSuspense(pendingProps, mode, expirationTime, key) {
  var fiber = createFiber(SuspenseComponent, pendingProps, key, mode);

  // TODO: The SuspenseComponent fiber shouldn't have a type. It has a tag.
  // This needs to be fixed in getComponentName so that it relies on the tag
  // instead.
  fiber.type = REACT_SUSPENSE_TYPE;
  fiber.elementType = REACT_SUSPENSE_TYPE;

  fiber.expirationTime = expirationTime;
  return fiber;
}

function createFiberFromSuspenseList(pendingProps, mode, expirationTime, key) {
  var fiber = createFiber(SuspenseListComponent, pendingProps, key, mode);
  {
    // TODO: The SuspenseListComponent fiber shouldn't have a type. It has a tag.
    // This needs to be fixed in getComponentName so that it relies on the tag
    // instead.
    fiber.type = REACT_SUSPENSE_LIST_TYPE;
  }
  fiber.elementType = REACT_SUSPENSE_LIST_TYPE;
  fiber.expirationTime = expirationTime;
  return fiber;
}

function createFiberFromText(content, mode, expirationTime) {
  var fiber = createFiber(HostText, content, null, mode);
  fiber.expirationTime = expirationTime;
  return fiber;
}

function createFiberFromHostInstanceForDeletion() {
  var fiber = createFiber(HostComponent, null, null, NoMode);
  // TODO: These should not need a type.
  fiber.elementType = 'DELETED';
  fiber.type = 'DELETED';
  return fiber;
}

function createFiberFromPortal(portal, mode, expirationTime) {
  var pendingProps = portal.children !== null ? portal.children : [];
  var fiber = createFiber(HostPortal, pendingProps, portal.key, mode);
  fiber.expirationTime = expirationTime;
  fiber.stateNode = {
    containerInfo: portal.containerInfo,
    pendingChildren: null, // Used by persistent updates
    implementation: portal.implementation
  };
  return fiber;
}

// Used for stashing WIP properties to replay failed work in DEV.
function assignFiberPropertiesInDEV(target, source) {
  if (target === null) {
    // This Fiber's initial properties will always be overwritten.
    // We only use a Fiber to ensure the same hidden class so DEV isn't slow.
    target = createFiber(IndeterminateComponent, null, null, NoMode);
  }

  // This is intentionally written as a list of all properties.
  // We tried to use Object.assign() instead but this is called in
  // the hottest path, and Object.assign() was too slow:
  // https://github.com/facebook/react/issues/12502
  // This code is DEV-only so size is not a concern.

  target.tag = source.tag;
  target.key = source.key;
  target.elementType = source.elementType;
  target.type = source.type;
  target.stateNode = source.stateNode;
  target.return = source.return;
  target.child = source.child;
  target.sibling = source.sibling;
  target.index = source.index;
  target.ref = source.ref;
  target.pendingProps = source.pendingProps;
  target.memoizedProps = source.memoizedProps;
  target.updateQueue = source.updateQueue;
  target.memoizedState = source.memoizedState;
  target.dependencies = source.dependencies;
  target.mode = source.mode;
  target.effectTag = source.effectTag;
  target.nextEffect = source.nextEffect;
  target.firstEffect = source.firstEffect;
  target.lastEffect = source.lastEffect;
  target.expirationTime = source.expirationTime;
  target.childExpirationTime = source.childExpirationTime;
  target.alternate = source.alternate;
  if (enableProfilerTimer) {
    target.actualDuration = source.actualDuration;
    target.actualStartTime = source.actualStartTime;
    target.selfBaseDuration = source.selfBaseDuration;
    target.treeBaseDuration = source.treeBaseDuration;
  }
  target._debugID = source._debugID;
  target._debugSource = source._debugSource;
  target._debugOwner = source._debugOwner;
  target._debugIsCurrentlyTiming = source._debugIsCurrentlyTiming;
  target._debugNeedsRemount = source._debugNeedsRemount;
  target._debugHookTypes = source._debugHookTypes;
  return target;
}

// TODO: This should be lifted into the renderer.


// The following attributes are only used by interaction tracing builds.
// They enable interactions to be associated with their async work,
// And expose interaction metadata to the React DevTools Profiler plugin.
// Note that these attributes are only defined when the enableSchedulerTracing flag is enabled.


// Exported FiberRoot type includes all properties,
// To avoid requiring potentially error-prone :any casts throughout the project.
// Profiling properties are only safe to access in profiling builds (when enableSchedulerTracing is true).
// The types are defined separately within this file to ensure they stay in sync.
// (We don't have to use an inline :any cast when enableSchedulerTracing is disabled.)


function FiberRootNode(containerInfo, tag, hydrate) {
  this.tag = tag;
  this.current = null;
  this.containerInfo = containerInfo;
  this.pendingChildren = null;
  this.pingCache = null;
  this.finishedExpirationTime = NoWork;
  this.finishedWork = null;
  this.timeoutHandle = noTimeout;
  this.context = null;
  this.pendingContext = null;
  this.hydrate = hydrate;
  this.firstBatch = null;
  this.callbackNode = null;
  this.callbackExpirationTime = NoWork;
  this.firstPendingTime = NoWork;
  this.lastPendingTime = NoWork;
  this.pingTime = NoWork;

  if (enableSchedulerTracing) {
    this.interactionThreadID = tracing.unstable_getThreadID();
    this.memoizedInteractions = new Set();
    this.pendingInteractionMap = new Map();
  }
}

function createFiberRoot(containerInfo, tag, hydrate) {
  var root = new FiberRootNode(containerInfo, tag, hydrate);

  // Cyclic construction. This cheats the type system right now because
  // stateNode is any.
  var uninitializedFiber = createHostRootFiber(tag);
  root.current = uninitializedFiber;
  uninitializedFiber.stateNode = root;

  return root;
}

// This lets us hook into Fiber to debug what it's doing.
// See https://github.com/facebook/react/pull/8033.
// This is not part of the public API, not even for React DevTools.
// You may only inject a debugTool if you work on React Fiber itself.
var ReactFiberInstrumentation = {
  debugTool: null
};

var ReactFiberInstrumentation_1 = ReactFiberInstrumentation;

// 0 is PROD, 1 is DEV.
// Might add PROFILE later.


var didWarnAboutNestedUpdates = void 0;
var didWarnAboutFindNodeInStrictMode = void 0;

{
  didWarnAboutNestedUpdates = false;
  didWarnAboutFindNodeInStrictMode = {};
}

function getContextForSubtree(parentComponent) {
  if (!parentComponent) {
    return emptyContextObject;
  }

  var fiber = get(parentComponent);
  var parentContext = findCurrentUnmaskedContext(fiber);

  if (fiber.tag === ClassComponent) {
    var Component = fiber.type;
    if (isContextProvider(Component)) {
      return processChildContext(fiber, Component, parentContext);
    }
  }

  return parentContext;
}

function scheduleRootUpdate(current$$1, element, expirationTime, suspenseConfig, callback) {
  {
    if (phase === 'render' && current !== null && !didWarnAboutNestedUpdates) {
      didWarnAboutNestedUpdates = true;
      warningWithoutStack$1(false, 'Render methods should be a pure function of props and state; ' + 'triggering nested component updates from render is not allowed. ' + 'If necessary, trigger nested updates in componentDidUpdate.\n\n' + 'Check the render method of %s.', getComponentName(current.type) || 'Unknown');
    }
  }

  var update = createUpdate(expirationTime, suspenseConfig);
  // Caution: React DevTools currently depends on this property
  // being called "element".
  update.payload = { element: element };

  callback = callback === undefined ? null : callback;
  if (callback !== null) {
    !(typeof callback === 'function') ? warningWithoutStack$1(false, 'render(...): Expected the last optional `callback` argument to be a ' + 'function. Instead received: %s.', callback) : void 0;
    update.callback = callback;
  }

  if (revertPassiveEffectsChange) {
    flushPassiveEffects();
  }
  enqueueUpdate(current$$1, update);
  scheduleWork(current$$1, expirationTime);

  return expirationTime;
}

function updateContainerAtExpirationTime(element, container, parentComponent, expirationTime, suspenseConfig, callback) {
  // TODO: If this is a nested container, this won't be the root.
  var current$$1 = container.current;

  {
    if (ReactFiberInstrumentation_1.debugTool) {
      if (current$$1.alternate === null) {
        ReactFiberInstrumentation_1.debugTool.onMountContainer(container);
      } else if (element === null) {
        ReactFiberInstrumentation_1.debugTool.onUnmountContainer(container);
      } else {
        ReactFiberInstrumentation_1.debugTool.onUpdateContainer(container);
      }
    }
  }

  var context = getContextForSubtree(parentComponent);
  if (container.context === null) {
    container.context = context;
  } else {
    container.pendingContext = context;
  }

  return scheduleRootUpdate(current$$1, element, expirationTime, suspenseConfig, callback);
}

function findHostInstance(component) {
  var fiber = get(component);
  if (fiber === undefined) {
    if (typeof component.render === 'function') {
      (function () {
        {
          {
            throw ReactError(Error('Unable to find node on an unmounted component.'));
          }
        }
      })();
    } else {
      (function () {
        {
          {
            throw ReactError(Error('Argument appears to not be a ReactComponent. Keys: ' + Object.keys(component)));
          }
        }
      })();
    }
  }
  var hostFiber = findCurrentHostFiber(fiber);
  if (hostFiber === null) {
    return null;
  }
  return hostFiber.stateNode;
}

function findHostInstanceWithWarning(component, methodName) {
  {
    var fiber = get(component);
    if (fiber === undefined) {
      if (typeof component.render === 'function') {
        (function () {
          {
            {
              throw ReactError(Error('Unable to find node on an unmounted component.'));
            }
          }
        })();
      } else {
        (function () {
          {
            {
              throw ReactError(Error('Argument appears to not be a ReactComponent. Keys: ' + Object.keys(component)));
            }
          }
        })();
      }
    }
    var hostFiber = findCurrentHostFiber(fiber);
    if (hostFiber === null) {
      return null;
    }
    if (hostFiber.mode & StrictMode) {
      var componentName = getComponentName(fiber.type) || 'Component';
      if (!didWarnAboutFindNodeInStrictMode[componentName]) {
        didWarnAboutFindNodeInStrictMode[componentName] = true;
        if (fiber.mode & StrictMode) {
          warningWithoutStack$1(false, '%s is deprecated in StrictMode. ' + '%s was passed an instance of %s which is inside StrictMode. ' + 'Instead, add a ref directly to the element you want to reference.' + '\n%s' + '\n\nLearn more about using refs safely here:' + '\nhttps://fb.me/react-strict-mode-find-node', methodName, methodName, componentName, getStackByFiberInDevAndProd(hostFiber));
        } else {
          warningWithoutStack$1(false, '%s is deprecated in StrictMode. ' + '%s was passed an instance of %s which renders StrictMode children. ' + 'Instead, add a ref directly to the element you want to reference.' + '\n%s' + '\n\nLearn more about using refs safely here:' + '\nhttps://fb.me/react-strict-mode-find-node', methodName, methodName, componentName, getStackByFiberInDevAndProd(hostFiber));
        }
      }
    }
    return hostFiber.stateNode;
  }
  return findHostInstance(component);
}

function createContainer(containerInfo, tag, hydrate) {
  return createFiberRoot(containerInfo, tag, hydrate);
}

function updateContainer(element, container, parentComponent, callback) {
  var current$$1 = container.current;
  var currentTime = requestCurrentTime();
  {
    // $FlowExpectedError - jest isn't a global, and isn't recognized outside of tests
    if ('undefined' !== typeof jest) {
      warnIfUnmockedScheduler(current$$1);
      warnIfNotScopedWithMatchingAct(current$$1);
    }
  }
  var suspenseConfig = requestCurrentSuspenseConfig();
  var expirationTime = computeExpirationForFiber(currentTime, current$$1, suspenseConfig);
  return updateContainerAtExpirationTime(element, container, parentComponent, expirationTime, suspenseConfig, callback);
}

function getPublicRootInstance(container) {
  var containerFiber = container.current;
  if (!containerFiber.child) {
    return null;
  }
  switch (containerFiber.child.tag) {
    case HostComponent:
      return getPublicInstance(containerFiber.child.stateNode);
    default:
      return containerFiber.child.stateNode;
  }
}

function findHostInstanceWithNoPortals(fiber) {
  var hostFiber = findCurrentHostFiberWithNoPortals(fiber);
  if (hostFiber === null) {
    return null;
  }
  if (hostFiber.tag === FundamentalComponent) {
    return hostFiber.stateNode.instance;
  }
  return hostFiber.stateNode;
}

var shouldSuspendImpl = function (fiber) {
  return false;
};

function shouldSuspend(fiber) {
  return shouldSuspendImpl(fiber);
}

var overrideHookState = null;
var overrideProps = null;
var scheduleUpdate = null;
var setSuspenseHandler = null;

{
  var copyWithSetImpl = function (obj, path, idx, value) {
    if (idx >= path.length) {
      return value;
    }
    var key = path[idx];
    var updated = Array.isArray(obj) ? obj.slice() : _assign({}, obj);
    // $FlowFixMe number or string is fine here
    updated[key] = copyWithSetImpl(obj[key], path, idx + 1, value);
    return updated;
  };

  var copyWithSet = function (obj, path, value) {
    return copyWithSetImpl(obj, path, 0, value);
  };

  // Support DevTools editable values for useState and useReducer.
  overrideHookState = function (fiber, id, path, value) {
    // For now, the "id" of stateful hooks is just the stateful hook index.
    // This may change in the future with e.g. nested hooks.
    var currentHook = fiber.memoizedState;
    while (currentHook !== null && id > 0) {
      currentHook = currentHook.next;
      id--;
    }
    if (currentHook !== null) {
      if (revertPassiveEffectsChange) {
        flushPassiveEffects();
      }

      var newState = copyWithSet(currentHook.memoizedState, path, value);
      currentHook.memoizedState = newState;
      currentHook.baseState = newState;

      // We aren't actually adding an update to the queue,
      // because there is no update we can add for useReducer hooks that won't trigger an error.
      // (There's no appropriate action type for DevTools overrides.)
      // As a result though, React will see the scheduled update as a noop and bailout.
      // Shallow cloning props works as a workaround for now to bypass the bailout check.
      fiber.memoizedProps = _assign({}, fiber.memoizedProps);

      scheduleWork(fiber, Sync);
    }
  };

  // Support DevTools props for function components, forwardRef, memo, host components, etc.
  overrideProps = function (fiber, path, value) {
    if (revertPassiveEffectsChange) {
      flushPassiveEffects();
    }
    fiber.pendingProps = copyWithSet(fiber.memoizedProps, path, value);
    if (fiber.alternate) {
      fiber.alternate.pendingProps = fiber.pendingProps;
    }
    scheduleWork(fiber, Sync);
  };

  scheduleUpdate = function (fiber) {
    if (revertPassiveEffectsChange) {
      flushPassiveEffects();
    }
    scheduleWork(fiber, Sync);
  };

  setSuspenseHandler = function (newShouldSuspendImpl) {
    shouldSuspendImpl = newShouldSuspendImpl;
  };
}

function injectIntoDevTools(devToolsConfig) {
  var findFiberByHostInstance = devToolsConfig.findFiberByHostInstance;
  var ReactCurrentDispatcher = ReactSharedInternals.ReactCurrentDispatcher;


  return injectInternals(_assign({}, devToolsConfig, {
    overrideHookState: overrideHookState,
    overrideProps: overrideProps,
    setSuspenseHandler: setSuspenseHandler,
    scheduleUpdate: scheduleUpdate,
    currentDispatcherRef: ReactCurrentDispatcher,
    findHostInstanceByFiber: function (fiber) {
      var hostFiber = findCurrentHostFiber(fiber);
      if (hostFiber === null) {
        return null;
      }
      return hostFiber.stateNode;
    },
    findFiberByHostInstance: function (instance) {
      if (!findFiberByHostInstance) {
        // Might not be implemented by the renderer.
        return null;
      }
      return findFiberByHostInstance(instance);
    },

    // React Refresh
    findHostInstancesForRefresh: findHostInstancesForRefresh,
    scheduleRefresh: scheduleRefresh,
    scheduleRoot: scheduleRoot,
    setRefreshHandler: setRefreshHandler,
    // Enables DevTools to append owner stacks to error messages in DEV mode.
    getCurrentFiber: function () {
      return current;
    }
  }));
}

// This file intentionally does *not* have the Flow annotation.
// Don't add it. See `./inline-typed.js` for an explanation.

function createPortal$1(children, containerInfo,
// TODO: figure out the API for cross-renderer implementation.
implementation) {
  var key = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null;

  return {
    // This tag allow us to uniquely identify this as a React Portal
    $$typeof: REACT_PORTAL_TYPE,
    key: key == null ? null : '' + key,
    children: children,
    containerInfo: containerInfo,
    implementation: implementation
  };
}

// TODO: this is special because it gets imported during build.

var ReactVersion = '16.9.0';

// TODO: This type is shared between the reconciler and ReactDOM, but will
// eventually be lifted out to the renderer.

var ReactCurrentOwner = ReactSharedInternals.ReactCurrentOwner;

var topLevelUpdateWarnings = void 0;
var warnOnInvalidCallback = void 0;
var didWarnAboutUnstableCreatePortal = false;

{
  if (typeof Map !== 'function' ||
  // $FlowIssue Flow incorrectly thinks Map has no prototype
  Map.prototype == null || typeof Map.prototype.forEach !== 'function' || typeof Set !== 'function' ||
  // $FlowIssue Flow incorrectly thinks Set has no prototype
  Set.prototype == null || typeof Set.prototype.clear !== 'function' || typeof Set.prototype.forEach !== 'function') {
    warningWithoutStack$1(false, 'React depends on Map and Set built-in types. Make sure that you load a ' + 'polyfill in older browsers. https://fb.me/react-polyfills');
  }

  topLevelUpdateWarnings = function (container) {
    if (container._reactRootContainer && container.nodeType !== COMMENT_NODE) {
      var hostInstance = findHostInstanceWithNoPortals(container._reactRootContainer._internalRoot.current);
      if (hostInstance) {
        !(hostInstance.parentNode === container) ? warningWithoutStack$1(false, 'render(...): It looks like the React-rendered content of this ' + 'container was removed without using React. This is not ' + 'supported and will cause errors. Instead, call ' + 'ReactDOM.unmountComponentAtNode to empty a container.') : void 0;
      }
    }

    var isRootRenderedBySomeReact = !!container._reactRootContainer;
    var rootEl = getReactRootElementInContainer(container);
    var hasNonRootReactChild = !!(rootEl && getInstanceFromNode$1(rootEl));

    !(!hasNonRootReactChild || isRootRenderedBySomeReact) ? warningWithoutStack$1(false, 'render(...): Replacing React-rendered children with a new root ' + 'component. If you intended to update the children of this node, ' + 'you should instead have the existing children update their state ' + 'and render the new components instead of calling ReactDOM.render.') : void 0;

    !(container.nodeType !== ELEMENT_NODE || !container.tagName || container.tagName.toUpperCase() !== 'BODY') ? warningWithoutStack$1(false, 'render(): Rendering components directly into document.body is ' + 'discouraged, since its children are often manipulated by third-party ' + 'scripts and browser extensions. This may lead to subtle ' + 'reconciliation issues. Try rendering into a container element created ' + 'for your app.') : void 0;
  };

  warnOnInvalidCallback = function (callback, callerName) {
    !(callback === null || typeof callback === 'function') ? warningWithoutStack$1(false, '%s(...): Expected the last optional `callback` argument to be a ' + 'function. Instead received: %s.', callerName, callback) : void 0;
  };
}

setRestoreImplementation(restoreControlledState$1);

function ReactBatch(root) {
  var expirationTime = computeUniqueAsyncExpiration();
  this._expirationTime = expirationTime;
  this._root = root;
  this._next = null;
  this._callbacks = null;
  this._didComplete = false;
  this._hasChildren = false;
  this._children = null;
  this._defer = true;
}
ReactBatch.prototype.render = function (children) {
  var _this = this;

  (function () {
    if (!_this._defer) {
      {
        throw ReactError(Error('batch.render: Cannot render a batch that already committed.'));
      }
    }
  })();
  this._hasChildren = true;
  this._children = children;
  var internalRoot = this._root._internalRoot;
  var expirationTime = this._expirationTime;
  var work = new ReactWork();
  updateContainerAtExpirationTime(children, internalRoot, null, expirationTime, null, work._onCommit);
  return work;
};
ReactBatch.prototype.then = function (onComplete) {
  if (this._didComplete) {
    onComplete();
    return;
  }
  var callbacks = this._callbacks;
  if (callbacks === null) {
    callbacks = this._callbacks = [];
  }
  callbacks.push(onComplete);
};
ReactBatch.prototype.commit = function () {
  var _this2 = this;

  var internalRoot = this._root._internalRoot;
  var firstBatch = internalRoot.firstBatch;
  (function () {
    if (!(_this2._defer && firstBatch !== null)) {
      {
        throw ReactError(Error('batch.commit: Cannot commit a batch multiple times.'));
      }
    }
  })();

  if (!this._hasChildren) {
    // This batch is empty. Return.
    this._next = null;
    this._defer = false;
    return;
  }

  var expirationTime = this._expirationTime;

  // Ensure this is the first batch in the list.
  if (firstBatch !== this) {
    // This batch is not the earliest batch. We need to move it to the front.
    // Update its expiration time to be the expiration time of the earliest
    // batch, so that we can flush it without flushing the other batches.
    if (this._hasChildren) {
      expirationTime = this._expirationTime = firstBatch._expirationTime;
      // Rendering this batch again ensures its children will be the final state
      // when we flush (updates are processed in insertion order: last
      // update wins).
      // TODO: This forces a restart. Should we print a warning?
      this.render(this._children);
    }

    // Remove the batch from the list.
    var previous = null;
    var batch = firstBatch;
    while (batch !== this) {
      previous = batch;
      batch = batch._next;
    }
    (function () {
      if (!(previous !== null)) {
        {
          throw ReactError(Error('batch.commit: Cannot commit a batch multiple times.'));
        }
      }
    })();
    previous._next = batch._next;

    // Add it to the front.
    this._next = firstBatch;
    firstBatch = internalRoot.firstBatch = this;
  }

  // Synchronously flush all the work up to this batch's expiration time.
  this._defer = false;
  flushRoot(internalRoot, expirationTime);

  // Pop the batch from the list.
  var next = this._next;
  this._next = null;
  firstBatch = internalRoot.firstBatch = next;

  // Append the next earliest batch's children to the update queue.
  if (firstBatch !== null && firstBatch._hasChildren) {
    firstBatch.render(firstBatch._children);
  }
};
ReactBatch.prototype._onComplete = function () {
  if (this._didComplete) {
    return;
  }
  this._didComplete = true;
  var callbacks = this._callbacks;
  if (callbacks === null) {
    return;
  }
  // TODO: Error handling.
  for (var i = 0; i < callbacks.length; i++) {
    var _callback = callbacks[i];
    _callback();
  }
};

function ReactWork() {
  this._callbacks = null;
  this._didCommit = false;
  // TODO: Avoid need to bind by replacing callbacks in the update queue with
  // list of Work objects.
  this._onCommit = this._onCommit.bind(this);
}
ReactWork.prototype.then = function (onCommit) {
  if (this._didCommit) {
    onCommit();
    return;
  }
  var callbacks = this._callbacks;
  if (callbacks === null) {
    callbacks = this._callbacks = [];
  }
  callbacks.push(onCommit);
};
ReactWork.prototype._onCommit = function () {
  if (this._didCommit) {
    return;
  }
  this._didCommit = true;
  var callbacks = this._callbacks;
  if (callbacks === null) {
    return;
  }
  // TODO: Error handling.
  for (var i = 0; i < callbacks.length; i++) {
    var _callback2 = callbacks[i];
    (function () {
      if (!(typeof _callback2 === 'function')) {
        {
          throw ReactError(Error('Invalid argument passed as callback. Expected a function. Instead received: ' + _callback2));
        }
      }
    })();
    _callback2();
  }
};

function ReactSyncRoot(container, tag, hydrate) {
  // Tag is either LegacyRoot or Concurrent Root
  var root = createContainer(container, tag, hydrate);
  this._internalRoot = root;
}

function ReactRoot(container, hydrate) {
  var root = createContainer(container, ConcurrentRoot, hydrate);
  this._internalRoot = root;
}

ReactRoot.prototype.render = ReactSyncRoot.prototype.render = function (children, callback) {
  var root = this._internalRoot;
  var work = new ReactWork();
  callback = callback === undefined ? null : callback;
  {
    warnOnInvalidCallback(callback, 'render');
  }
  if (callback !== null) {
    work.then(callback);
  }
  updateContainer(children, root, null, work._onCommit);
  return work;
};

ReactRoot.prototype.unmount = ReactSyncRoot.prototype.unmount = function (callback) {
  var root = this._internalRoot;
  var work = new ReactWork();
  callback = callback === undefined ? null : callback;
  {
    warnOnInvalidCallback(callback, 'render');
  }
  if (callback !== null) {
    work.then(callback);
  }
  updateContainer(null, root, null, work._onCommit);
  return work;
};

// Sync roots cannot create batches. Only concurrent ones.
ReactRoot.prototype.createBatch = function () {
  var batch = new ReactBatch(this);
  var expirationTime = batch._expirationTime;

  var internalRoot = this._internalRoot;
  var firstBatch = internalRoot.firstBatch;
  if (firstBatch === null) {
    internalRoot.firstBatch = batch;
    batch._next = null;
  } else {
    // Insert sorted by expiration time then insertion order
    var insertAfter = null;
    var insertBefore = firstBatch;
    while (insertBefore !== null && insertBefore._expirationTime >= expirationTime) {
      insertAfter = insertBefore;
      insertBefore = insertBefore._next;
    }
    batch._next = insertBefore;
    if (insertAfter !== null) {
      insertAfter._next = batch;
    }
  }

  return batch;
};

/**
 * True if the supplied DOM node is a valid node element.
 *
 * @param {?DOMElement} node The candidate DOM node.
 * @return {boolean} True if the DOM is a valid DOM node.
 * @internal
 */
function isValidContainer(node) {
  return !!(node && (node.nodeType === ELEMENT_NODE || node.nodeType === DOCUMENT_NODE || node.nodeType === DOCUMENT_FRAGMENT_NODE || node.nodeType === COMMENT_NODE && node.nodeValue === ' react-mount-point-unstable '));
}

function getReactRootElementInContainer(container) {
  if (!container) {
    return null;
  }

  if (container.nodeType === DOCUMENT_NODE) {
    return container.documentElement;
  } else {
    return container.firstChild;
  }
}

function shouldHydrateDueToLegacyHeuristic(container) {
  var rootElement = getReactRootElementInContainer(container);
  return !!(rootElement && rootElement.nodeType === ELEMENT_NODE && rootElement.hasAttribute(ROOT_ATTRIBUTE_NAME));
}

setBatchingImplementation(batchedUpdates$1, discreteUpdates$1, flushDiscreteUpdates, batchedEventUpdates$1);

var warnedAboutHydrateAPI = false;

function legacyCreateRootFromDOMContainer(container, forceHydrate) {
  var shouldHydrate = forceHydrate || shouldHydrateDueToLegacyHeuristic(container);
  // First clear any existing content.
  if (!shouldHydrate) {
    var warned = false;
    var rootSibling = void 0;
    while (rootSibling = container.lastChild) {
      {
        if (!warned && rootSibling.nodeType === ELEMENT_NODE && rootSibling.hasAttribute(ROOT_ATTRIBUTE_NAME)) {
          warned = true;
          warningWithoutStack$1(false, 'render(): Target node has markup rendered by React, but there ' + 'are unrelated nodes as well. This is most commonly caused by ' + 'white-space inserted around server-rendered markup.');
        }
      }
      container.removeChild(rootSibling);
    }
  }
  {
    if (shouldHydrate && !forceHydrate && !warnedAboutHydrateAPI) {
      warnedAboutHydrateAPI = true;
      lowPriorityWarning$1(false, 'render(): Calling ReactDOM.render() to hydrate server-rendered markup ' + 'will stop working in React v17. Replace the ReactDOM.render() call ' + 'with ReactDOM.hydrate() if you want React to attach to the server HTML.');
    }
  }

  // Legacy roots are not batched.
  return new ReactSyncRoot(container, LegacyRoot, shouldHydrate);
}

function legacyRenderSubtreeIntoContainer(parentComponent, children, container, forceHydrate, callback) {
  {
    topLevelUpdateWarnings(container);
    warnOnInvalidCallback(callback === undefined ? null : callback, 'render');
  }

  // TODO: Without `any` type, Flow says "Property cannot be accessed on any
  // member of intersection type." Whyyyyyy.
  var root = container._reactRootContainer;
  var fiberRoot = void 0;
  if (!root) {
    // Initial mount
    root = container._reactRootContainer = legacyCreateRootFromDOMContainer(container, forceHydrate);
    fiberRoot = root._internalRoot;
    if (typeof callback === 'function') {
      var originalCallback = callback;
      callback = function () {
        var instance = getPublicRootInstance(fiberRoot);
        originalCallback.call(instance);
      };
    }
    // Initial mount should not be batched.
    unbatchedUpdates(function () {
      updateContainer(children, fiberRoot, parentComponent, callback);
    });
  } else {
    fiberRoot = root._internalRoot;
    if (typeof callback === 'function') {
      var _originalCallback = callback;
      callback = function () {
        var instance = getPublicRootInstance(fiberRoot);
        _originalCallback.call(instance);
      };
    }
    // Update
    updateContainer(children, fiberRoot, parentComponent, callback);
  }
  return getPublicRootInstance(fiberRoot);
}

function createPortal$$1(children, container) {
  var key = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;

  (function () {
    if (!isValidContainer(container)) {
      {
        throw ReactError(Error('Target container is not a DOM element.'));
      }
    }
  })();
  // TODO: pass ReactDOM portal implementation as third argument
  return createPortal$1(children, container, null, key);
}

var ReactDOM = {
  createPortal: createPortal$$1,

  findDOMNode: function (componentOrElement) {
    {
      var owner = ReactCurrentOwner.current;
      if (owner !== null && owner.stateNode !== null) {
        var warnedAboutRefsInRender = owner.stateNode._warnedAboutRefsInRender;
        !warnedAboutRefsInRender ? warningWithoutStack$1(false, '%s is accessing findDOMNode inside its render(). ' + 'render() should be a pure function of props and state. It should ' + 'never access something that requires stale data from the previous ' + 'render, such as refs. Move this logic to componentDidMount and ' + 'componentDidUpdate instead.', getComponentName(owner.type) || 'A component') : void 0;
        owner.stateNode._warnedAboutRefsInRender = true;
      }
    }
    if (componentOrElement == null) {
      return null;
    }
    if (componentOrElement.nodeType === ELEMENT_NODE) {
      return componentOrElement;
    }
    {
      return findHostInstanceWithWarning(componentOrElement, 'findDOMNode');
    }
    return findHostInstance(componentOrElement);
  },
  hydrate: function (element, container, callback) {
    (function () {
      if (!isValidContainer(container)) {
        {
          throw ReactError(Error('Target container is not a DOM element.'));
        }
      }
    })();
    {
      !!container._reactHasBeenPassedToCreateRootDEV ? warningWithoutStack$1(false, 'You are calling ReactDOM.hydrate() on a container that was previously ' + 'passed to ReactDOM.%s(). This is not supported. ' + 'Did you mean to call createRoot(container, {hydrate: true}).render(element)?', enableStableConcurrentModeAPIs ? 'createRoot' : 'unstable_createRoot') : void 0;
    }
    // TODO: throw or warn if we couldn't hydrate?
    return legacyRenderSubtreeIntoContainer(null, element, container, true, callback);
  },
  render: function (element, container, callback) {
    (function () {
      if (!isValidContainer(container)) {
        {
          throw ReactError(Error('Target container is not a DOM element.'));
        }
      }
    })();
    {
      !!container._reactHasBeenPassedToCreateRootDEV ? warningWithoutStack$1(false, 'You are calling ReactDOM.render() on a container that was previously ' + 'passed to ReactDOM.%s(). This is not supported. ' + 'Did you mean to call root.render(element)?', enableStableConcurrentModeAPIs ? 'createRoot' : 'unstable_createRoot') : void 0;
    }
    return legacyRenderSubtreeIntoContainer(null, element, container, false, callback);
  },
  unstable_renderSubtreeIntoContainer: function (parentComponent, element, containerNode, callback) {
    (function () {
      if (!isValidContainer(containerNode)) {
        {
          throw ReactError(Error('Target container is not a DOM element.'));
        }
      }
    })();
    (function () {
      if (!(parentComponent != null && has(parentComponent))) {
        {
          throw ReactError(Error('parentComponent must be a valid React Component'));
        }
      }
    })();
    return legacyRenderSubtreeIntoContainer(parentComponent, element, containerNode, false, callback);
  },
  unmountComponentAtNode: function (container) {
    (function () {
      if (!isValidContainer(container)) {
        {
          throw ReactError(Error('unmountComponentAtNode(...): Target container is not a DOM element.'));
        }
      }
    })();

    {
      !!container._reactHasBeenPassedToCreateRootDEV ? warningWithoutStack$1(false, 'You are calling ReactDOM.unmountComponentAtNode() on a container that was previously ' + 'passed to ReactDOM.%s(). This is not supported. Did you mean to call root.unmount()?', enableStableConcurrentModeAPIs ? 'createRoot' : 'unstable_createRoot') : void 0;
    }

    if (container._reactRootContainer) {
      {
        var rootEl = getReactRootElementInContainer(container);
        var renderedByDifferentReact = rootEl && !getInstanceFromNode$1(rootEl);
        !!renderedByDifferentReact ? warningWithoutStack$1(false, "unmountComponentAtNode(): The node you're attempting to unmount " + 'was rendered by another copy of React.') : void 0;
      }

      // Unmount should not be batched.
      unbatchedUpdates(function () {
        legacyRenderSubtreeIntoContainer(null, null, container, false, function () {
          container._reactRootContainer = null;
        });
      });
      // If you call unmountComponentAtNode twice in quick succession, you'll
      // get `true` twice. That's probably fine?
      return true;
    } else {
      {
        var _rootEl = getReactRootElementInContainer(container);
        var hasNonRootReactChild = !!(_rootEl && getInstanceFromNode$1(_rootEl));

        // Check if the container itself is a React root node.
        var isContainerReactRoot = container.nodeType === ELEMENT_NODE && isValidContainer(container.parentNode) && !!container.parentNode._reactRootContainer;

        !!hasNonRootReactChild ? warningWithoutStack$1(false, "unmountComponentAtNode(): The node you're attempting to unmount " + 'was rendered by React and is not a top-level container. %s', isContainerReactRoot ? 'You may have accidentally passed in a React root node instead ' + 'of its container.' : 'Instead, have the parent component update its state and ' + 'rerender in order to remove this component.') : void 0;
      }

      return false;
    }
  },


  // Temporary alias since we already shipped React 16 RC with it.
  // TODO: remove in React 17.
  unstable_createPortal: function () {
    if (!didWarnAboutUnstableCreatePortal) {
      didWarnAboutUnstableCreatePortal = true;
      lowPriorityWarning$1(false, 'The ReactDOM.unstable_createPortal() alias has been deprecated, ' + 'and will be removed in React 17+. Update your code to use ' + 'ReactDOM.createPortal() instead. It has the exact same API, ' + 'but without the "unstable_" prefix.');
    }
    return createPortal$$1.apply(undefined, arguments);
  },


  unstable_batchedUpdates: batchedUpdates$1,

  // TODO remove this legacy method, unstable_discreteUpdates replaces it
  unstable_interactiveUpdates: function (fn, a, b, c) {
    flushDiscreteUpdates();
    return discreteUpdates$1(fn, a, b, c);
  },

  unstable_discreteUpdates: discreteUpdates$1,
  unstable_flushDiscreteUpdates: flushDiscreteUpdates,

  flushSync: flushSync,

  unstable_createRoot: createRoot,
  unstable_createSyncRoot: createSyncRoot,
  unstable_flushControlled: flushControlled,

  __SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED: {
    // Keep in sync with ReactDOMUnstableNativeDependencies.js
    // ReactTestUtils.js, and ReactTestUtilsAct.js. This is an array for better minification.
    Events: [getInstanceFromNode$1, getNodeFromInstance$1, getFiberCurrentPropsFromNode$1, injection.injectEventPluginsByName, eventNameDispatchConfigs, accumulateTwoPhaseDispatches, accumulateDirectDispatches, enqueueStateRestore, restoreStateIfNeeded, dispatchEvent, runEventsInBatch, flushPassiveEffects, IsThisRendererActing]
  }
};

function createRoot(container, options) {
  var functionName = enableStableConcurrentModeAPIs ? 'createRoot' : 'unstable_createRoot';
  (function () {
    if (!isValidContainer(container)) {
      {
        throw ReactError(Error(functionName + '(...): Target container is not a DOM element.'));
      }
    }
  })();
  warnIfReactDOMContainerInDEV(container);
  var hydrate = options != null && options.hydrate === true;
  return new ReactRoot(container, hydrate);
}

function createSyncRoot(container, options) {
  var functionName = enableStableConcurrentModeAPIs ? 'createRoot' : 'unstable_createRoot';
  (function () {
    if (!isValidContainer(container)) {
      {
        throw ReactError(Error(functionName + '(...): Target container is not a DOM element.'));
      }
    }
  })();
  warnIfReactDOMContainerInDEV(container);
  var hydrate = options != null && options.hydrate === true;
  return new ReactSyncRoot(container, BatchedRoot, hydrate);
}

function warnIfReactDOMContainerInDEV(container) {
  {
    !!container._reactRootContainer ? warningWithoutStack$1(false, 'You are calling ReactDOM.%s() on a container that was previously ' + 'passed to ReactDOM.render(). This is not supported.', enableStableConcurrentModeAPIs ? 'createRoot' : 'unstable_createRoot') : void 0;
    container._reactHasBeenPassedToCreateRootDEV = true;
  }
}

if (enableStableConcurrentModeAPIs) {
  ReactDOM.createRoot = createRoot;
  ReactDOM.createSyncRoot = createSyncRoot;
}

var foundDevTools = injectIntoDevTools({
  findFiberByHostInstance: getClosestInstanceFromNode,
  bundleType: 1,
  version: ReactVersion,
  rendererPackageName: 'react-dom'
});

{
  if (!foundDevTools && canUseDOM && window.top === window.self) {
    // If we're in Chrome or Firefox, provide a download link if not installed.
    if (navigator.userAgent.indexOf('Chrome') > -1 && navigator.userAgent.indexOf('Edge') === -1 || navigator.userAgent.indexOf('Firefox') > -1) {
      var protocol = window.location.protocol;
      // Don't warn in exotic cases like chrome-extension://.
      if (/^(https?|file):$/.test(protocol)) {
        console.info('%cDownload the React DevTools ' + 'for a better development experience: ' + 'https://fb.me/react-devtools' + (protocol === 'file:' ? '\nYou might need to use a local HTTP server (instead of file://): ' + 'https://fb.me/react-devtools-faq' : ''), 'font-weight:bold');
      }
    }
  }
}



var ReactDOM$2 = Object.freeze({
	default: ReactDOM
});

var ReactDOM$3 = ( ReactDOM$2 && ReactDOM ) || ReactDOM$2;

// TODO: decide on the top-level export form.
// This is hacky but makes it work with both Rollup and Jest.
var reactDom = ReactDOM$3.default || ReactDOM$3;

module.exports = reactDom;
  })();
}

}).call(this,require('_process'))
},{"_process":24,"object-assign":20,"prop-types/checkPropTypes":25,"react":73,"scheduler":79,"scheduler/tracing":80}],41:[function(require,module,exports){
/** @license React v16.9.0
 * react-dom.production.min.js
 *
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

/*
 Modernizr 3.0.0pre (Custom Build) | MIT
*/
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function xj(a,b,c,d,e,f){var h=b.current;a:if(c){c=c._reactInternalFiber;b:{if(2!==ld(c)||1!==c.tag)throw t(Error(170));var g=c;do{switch(g.tag){case 3:g=g.stateNode.context;break b;case 1:if(N(g.type)){g=g.stateNode.__reactInternalMemoizedMergedChildContext;break b}}g=g.return}while(null!==g);throw t(Error(171));}if(1===c.tag){var k=c.type;if(N(k)){c=We(c,k,g);break a}}c=g}else c=Qe;null===b.context?b.context=c:b.pendingContext=c;b=f;e=Qf(d,e);e.payload={element:a};b=void 0===b?null:b;null!==b&&
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function Bj(a){var b=1073741821-25*(((1073741821-cg()+500)/25|0)+1);b<=Xi&&--b;this._expirationTime=Xi=b;this._root=a;this._callbacks=this._next=null;this._hasChildren=this._didComplete=!1;this._children=null;this._defer=!0}Bj.prototype.render=function(a){if(!this._defer)throw t(Error(250));this._hasChildren=!0;this._children=a;var b=this._root._internalRoot,c=this._expirationTime,d=new Cj;xj(a,b,null,c,null,d._onCommit);return d};
Bj.prototype.then=function(a){if(this._didComplete)a();else{var b=this._callbacks;null===b&&(b=this._callbacks=[]);b.push(a)}};
Bj.prototype.commit=function(){var a=this._root._internalRoot,b=a.firstBatch;if(!this._defer||null===b)throw t(Error(251));if(this._hasChildren){var c=this._expirationTime;if(b!==this){this._hasChildren&&(c=this._expirationTime=b._expirationTime,this.render(this._children));for(var d=null,e=b;e!==this;)d=e,e=e._next;if(null===d)throw t(Error(251));d._next=e._next;this._next=b;a.firstBatch=this}this._defer=!1;b=c;if((U&(Ci|Di))!==T)throw t(Error(253));xf(Z.bind(null,a,b));O();b=this._next;this._next=
null;b=a.firstBatch=b;null!==b&&b._hasChildren&&b.render(b._children)}else this._next=null,this._defer=!1};Bj.prototype._onComplete=function(){if(!this._didComplete){this._didComplete=!0;var a=this._callbacks;if(null!==a)for(var b=0;b<a.length;b++)(0,a[b])()}};function Cj(){this._callbacks=null;this._didCommit=!1;this._onCommit=this._onCommit.bind(this)}Cj.prototype.then=function(a){if(this._didCommit)a();else{var b=this._callbacks;null===b&&(b=this._callbacks=[]);b.push(a)}};
Cj.prototype._onCommit=function(){if(!this._didCommit){this._didCommit=!0;var a=this._callbacks;if(null!==a)for(var b=0;b<a.length;b++){var c=a[b];if("function"!==typeof c)throw t(Error(191),c);c()}}};function Dj(a,b,c){this._internalRoot=wj(a,b,c)}function Ej(a,b){this._internalRoot=wj(a,2,b)}Ej.prototype.render=Dj.prototype.render=function(a,b){var c=this._internalRoot,d=new Cj;b=void 0===b?null:b;null!==b&&d.then(b);yj(a,c,null,d._onCommit);return d};
Ej.prototype.unmount=Dj.prototype.unmount=function(a){var b=this._internalRoot,c=new Cj;a=void 0===a?null:a;null!==a&&c.then(a);yj(null,b,null,c._onCommit);return c};Ej.prototype.createBatch=function(){var a=new Bj(this),b=a._expirationTime,c=this._internalRoot,d=c.firstBatch;if(null===d)c.firstBatch=a,a._next=null;else{for(c=null;null!==d&&d._expirationTime>=b;)c=d,d=d._next;a._next=d;null!==c&&(c._next=a)}return a};
function Hj(a){return!(!a||1!==a.nodeType&&9!==a.nodeType&&11!==a.nodeType&&(8!==a.nodeType||" react-mount-point-unstable "!==a.nodeValue))}Jb=ej;Kb=fj;Lb=aj;Mb=function(a,b){var c=U;U|=2;try{return a(b)}finally{U=c,U===T&&O()}};function Ij(a,b){b||(b=a?9===a.nodeType?a.documentElement:a.firstChild:null,b=!(!b||1!==b.nodeType||!b.hasAttribute("data-reactroot")));if(!b)for(var c;c=a.lastChild;)a.removeChild(c);return new Dj(a,0,b)}
function Jj(a,b,c,d,e){var f=c._reactRootContainer,h=void 0;if(f){h=f._internalRoot;if("function"===typeof e){var g=e;e=function(){var a=zj(h);g.call(a)}}yj(b,h,a,e)}else{f=c._reactRootContainer=Ij(c,d);h=f._internalRoot;if("function"===typeof e){var k=e;e=function(){var a=zj(h);k.call(a)}}gj(function(){yj(b,h,a,e)})}return zj(h)}function Kj(a,b){var c=2<arguments.length&&void 0!==arguments[2]?arguments[2]:null;if(!Hj(b))throw t(Error(200));return Aj(a,b,null,c)}
var Nj={createPortal:Kj,findDOMNode:function(a){if(null==a)a=null;else if(1!==a.nodeType){var b=a._reactInternalFiber;if(void 0===b){if("function"===typeof a.render)throw t(Error(188));throw t(Error(268),Object.keys(a));}a=qd(b);a=null===a?null:a.stateNode}return a},hydrate:function(a,b,c){if(!Hj(b))throw t(Error(200));return Jj(null,a,b,!0,c)},render:function(a,b,c){if(!Hj(b))throw t(Error(200));return Jj(null,a,b,!1,c)},unstable_renderSubtreeIntoContainer:function(a,b,c,d){if(!Hj(c))throw t(Error(200));
if(null==a||void 0===a._reactInternalFiber)throw t(Error(38));return Jj(a,b,c,!1,d)},unmountComponentAtNode:function(a){if(!Hj(a))throw t(Error(40));return a._reactRootContainer?(gj(function(){Jj(null,null,a,!1,function(){a._reactRootContainer=null})}),!0):!1},unstable_createPortal:function(){return Kj.apply(void 0,arguments)},unstable_batchedUpdates:ej,unstable_interactiveUpdates:function(a,b,c,d){aj();return fj(a,b,c,d)},unstable_discreteUpdates:fj,unstable_flushDiscreteUpdates:aj,flushSync:function(a,
b){if((U&(Ci|Di))!==T)throw t(Error(187));var c=U;U|=1;try{return vf(99,a.bind(null,b))}finally{U=c,O()}},unstable_createRoot:Lj,unstable_createSyncRoot:Mj,unstable_flushControlled:function(a){var b=U;U|=1;try{vf(99,a)}finally{U=b,U===T&&O()}},__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED:{Events:[Ia,Ja,Ka,Ca.injectEventPluginsByName,fa,Qa,function(a){ya(a,Pa)},Hb,Ib,Ud,Ba,cj,{current:!1}]}};
function Lj(a,b){if(!Hj(a))throw t(Error(299),"unstable_createRoot");return new Ej(a,null!=b&&!0===b.hydrate)}function Mj(a,b){if(!Hj(a))throw t(Error(299),"unstable_createRoot");return new Dj(a,1,null!=b&&!0===b.hydrate)}
(function(a){var b=a.findFiberByHostInstance;return tj(m({},a,{overrideHookState:null,overrideProps:null,setSuspenseHandler:null,scheduleUpdate:null,currentDispatcherRef:Xb.ReactCurrentDispatcher,findHostInstanceByFiber:function(a){a=qd(a);return null===a?null:a.stateNode},findFiberByHostInstance:function(a){return b?b(a):null},findHostInstancesForRefresh:null,scheduleRefresh:null,scheduleRoot:null,setRefreshHandler:null,getCurrentFiber:null}))})({findFiberByHostInstance:Ha,bundleType:0,version:"16.9.0",
rendererPackageName:"react-dom"});var Oj={default:Nj},Pj=Oj&&Nj||Oj;module.exports=Pj.default||Pj;

},{"object-assign":20,"react":73,"scheduler":79}],42:[function(require,module,exports){
(function (process){
'use strict';

function checkDCE() {
  /* global __REACT_DEVTOOLS_GLOBAL_HOOK__ */
  if (
    typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ === 'undefined' ||
    typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.checkDCE !== 'function'
  ) {
    return;
  }
  if (process.env.NODE_ENV !== 'production') {
    // This branch is unreachable because this function is only called
    // in production, but the condition is true only in development.
    // Therefore if the branch is still here, dead code elimination wasn't
    // properly applied.
    // Don't change the message. React DevTools relies on it. Also make sure
    // this message doesn't occur elsewhere in this function, or it will cause
    // a false positive.
    throw new Error('^_^');
  }
  try {
    // Verify that the code above has been dead code eliminated (DCE'd).
    __REACT_DEVTOOLS_GLOBAL_HOOK__.checkDCE(checkDCE);
  } catch (err) {
    // DevTools shouldn't crash React, no matter what.
    // We should still report in case we break this code.
    console.error(err);
  }
}

if (process.env.NODE_ENV === 'production') {
  // DCE check should happen before ReactDOM bundle executes so that
  // DevTools can report bad minification during injection.
  checkDCE();
  module.exports = require('./cjs/react-dom.production.min.js');
} else {
  module.exports = require('./cjs/react-dom.development.js');
}

}).call(this,require('_process'))
},{"./cjs/react-dom.development.js":40,"./cjs/react-dom.production.min.js":41,"_process":24}],43:[function(require,module,exports){
(function (process){
/** @license React v16.9.0
 * react-is.development.js
 *
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

'use strict';



if (process.env.NODE_ENV !== "production") {
  (function() {
'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

// The Symbol used to tag the ReactElement-like types. If there is no native Symbol
// nor polyfill, then a plain number is used for performance.
var hasSymbol = typeof Symbol === 'function' && Symbol.for;

var REACT_ELEMENT_TYPE = hasSymbol ? Symbol.for('react.element') : 0xeac7;
var REACT_PORTAL_TYPE = hasSymbol ? Symbol.for('react.portal') : 0xeaca;
var REACT_FRAGMENT_TYPE = hasSymbol ? Symbol.for('react.fragment') : 0xeacb;
var REACT_STRICT_MODE_TYPE = hasSymbol ? Symbol.for('react.strict_mode') : 0xeacc;
var REACT_PROFILER_TYPE = hasSymbol ? Symbol.for('react.profiler') : 0xead2;
var REACT_PROVIDER_TYPE = hasSymbol ? Symbol.for('react.provider') : 0xeacd;
var REACT_CONTEXT_TYPE = hasSymbol ? Symbol.for('react.context') : 0xeace;
// TODO: We don't use AsyncMode or ConcurrentMode anymore. They were temporary
// (unstable) APIs that have been removed. Can we remove the symbols?
var REACT_ASYNC_MODE_TYPE = hasSymbol ? Symbol.for('react.async_mode') : 0xeacf;
var REACT_CONCURRENT_MODE_TYPE = hasSymbol ? Symbol.for('react.concurrent_mode') : 0xeacf;
var REACT_FORWARD_REF_TYPE = hasSymbol ? Symbol.for('react.forward_ref') : 0xead0;
var REACT_SUSPENSE_TYPE = hasSymbol ? Symbol.for('react.suspense') : 0xead1;
var REACT_SUSPENSE_LIST_TYPE = hasSymbol ? Symbol.for('react.suspense_list') : 0xead8;
var REACT_MEMO_TYPE = hasSymbol ? Symbol.for('react.memo') : 0xead3;
var REACT_LAZY_TYPE = hasSymbol ? Symbol.for('react.lazy') : 0xead4;
var REACT_FUNDAMENTAL_TYPE = hasSymbol ? Symbol.for('react.fundamental') : 0xead5;
var REACT_RESPONDER_TYPE = hasSymbol ? Symbol.for('react.responder') : 0xead6;

function isValidElementType(type) {
  return typeof type === 'string' || typeof type === 'function' ||
  // Note: its typeof might be other than 'symbol' or 'number' if it's a polyfill.
  type === REACT_FRAGMENT_TYPE || type === REACT_CONCURRENT_MODE_TYPE || type === REACT_PROFILER_TYPE || type === REACT_STRICT_MODE_TYPE || type === REACT_SUSPENSE_TYPE || type === REACT_SUSPENSE_LIST_TYPE || typeof type === 'object' && type !== null && (type.$$typeof === REACT_LAZY_TYPE || type.$$typeof === REACT_MEMO_TYPE || type.$$typeof === REACT_PROVIDER_TYPE || type.$$typeof === REACT_CONTEXT_TYPE || type.$$typeof === REACT_FORWARD_REF_TYPE || type.$$typeof === REACT_FUNDAMENTAL_TYPE || type.$$typeof === REACT_RESPONDER_TYPE);
}

/**
 * Forked from fbjs/warning:
 * https://github.com/facebook/fbjs/blob/e66ba20ad5be433eb54423f2b097d829324d9de6/packages/fbjs/src/__forks__/warning.js
 *
 * Only change is we use console.warn instead of console.error,
 * and do nothing when 'console' is not supported.
 * This really simplifies the code.
 * ---
 * Similar to invariant but only logs a warning if the condition is not met.
 * This can be used to log issues in development environments in critical
 * paths. Removing the logging code for production environments will keep the
 * same logic and follow the same code paths.
 */

var lowPriorityWarning = function () {};

{
  var printWarning = function (format) {
    for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
      args[_key - 1] = arguments[_key];
    }

    var argIndex = 0;
    var message = 'Warning: ' + format.replace(/%s/g, function () {
      return args[argIndex++];
    });
    if (typeof console !== 'undefined') {
      console.warn(message);
    }
    try {
      // --- Welcome to debugging React ---
      // This error was thrown as a convenience so that you can use this stack
      // to find the callsite that caused this warning to fire.
      throw new Error(message);
    } catch (x) {}
  };

  lowPriorityWarning = function (condition, format) {
    if (format === undefined) {
      throw new Error('`lowPriorityWarning(condition, format, ...args)` requires a warning ' + 'message argument');
    }
    if (!condition) {
      for (var _len2 = arguments.length, args = Array(_len2 > 2 ? _len2 - 2 : 0), _key2 = 2; _key2 < _len2; _key2++) {
        args[_key2 - 2] = arguments[_key2];
      }

      printWarning.apply(undefined, [format].concat(args));
    }
  };
}

var lowPriorityWarning$1 = lowPriorityWarning;

function typeOf(object) {
  if (typeof object === 'object' && object !== null) {
    var $$typeof = object.$$typeof;
    switch ($$typeof) {
      case REACT_ELEMENT_TYPE:
        var type = object.type;

        switch (type) {
          case REACT_ASYNC_MODE_TYPE:
          case REACT_CONCURRENT_MODE_TYPE:
          case REACT_FRAGMENT_TYPE:
          case REACT_PROFILER_TYPE:
          case REACT_STRICT_MODE_TYPE:
          case REACT_SUSPENSE_TYPE:
            return type;
          default:
            var $$typeofType = type && type.$$typeof;

            switch ($$typeofType) {
              case REACT_CONTEXT_TYPE:
              case REACT_FORWARD_REF_TYPE:
              case REACT_PROVIDER_TYPE:
                return $$typeofType;
              default:
                return $$typeof;
            }
        }
      case REACT_LAZY_TYPE:
      case REACT_MEMO_TYPE:
      case REACT_PORTAL_TYPE:
        return $$typeof;
    }
  }

  return undefined;
}

// AsyncMode is deprecated along with isAsyncMode
var AsyncMode = REACT_ASYNC_MODE_TYPE;
var ConcurrentMode = REACT_CONCURRENT_MODE_TYPE;
var ContextConsumer = REACT_CONTEXT_TYPE;
var ContextProvider = REACT_PROVIDER_TYPE;
var Element = REACT_ELEMENT_TYPE;
var ForwardRef = REACT_FORWARD_REF_TYPE;
var Fragment = REACT_FRAGMENT_TYPE;
var Lazy = REACT_LAZY_TYPE;
var Memo = REACT_MEMO_TYPE;
var Portal = REACT_PORTAL_TYPE;
var Profiler = REACT_PROFILER_TYPE;
var StrictMode = REACT_STRICT_MODE_TYPE;
var Suspense = REACT_SUSPENSE_TYPE;

var hasWarnedAboutDeprecatedIsAsyncMode = false;

// AsyncMode should be deprecated
function isAsyncMode(object) {
  {
    if (!hasWarnedAboutDeprecatedIsAsyncMode) {
      hasWarnedAboutDeprecatedIsAsyncMode = true;
      lowPriorityWarning$1(false, 'The ReactIs.isAsyncMode() alias has been deprecated, ' + 'and will be removed in React 17+. Update your code to use ' + 'ReactIs.isConcurrentMode() instead. It has the exact same API.');
    }
  }
  return isConcurrentMode(object) || typeOf(object) === REACT_ASYNC_MODE_TYPE;
}
function isConcurrentMode(object) {
  return typeOf(object) === REACT_CONCURRENT_MODE_TYPE;
}
function isContextConsumer(object) {
  return typeOf(object) === REACT_CONTEXT_TYPE;
}
function isContextProvider(object) {
  return typeOf(object) === REACT_PROVIDER_TYPE;
}
function isElement(object) {
  return typeof object === 'object' && object !== null && object.$$typeof === REACT_ELEMENT_TYPE;
}
function isForwardRef(object) {
  return typeOf(object) === REACT_FORWARD_REF_TYPE;
}
function isFragment(object) {
  return typeOf(object) === REACT_FRAGMENT_TYPE;
}
function isLazy(object) {
  return typeOf(object) === REACT_LAZY_TYPE;
}
function isMemo(object) {
  return typeOf(object) === REACT_MEMO_TYPE;
}
function isPortal(object) {
  return typeOf(object) === REACT_PORTAL_TYPE;
}
function isProfiler(object) {
  return typeOf(object) === REACT_PROFILER_TYPE;
}
function isStrictMode(object) {
  return typeOf(object) === REACT_STRICT_MODE_TYPE;
}
function isSuspense(object) {
  return typeOf(object) === REACT_SUSPENSE_TYPE;
}

exports.typeOf = typeOf;
exports.AsyncMode = AsyncMode;
exports.ConcurrentMode = ConcurrentMode;
exports.ContextConsumer = ContextConsumer;
exports.ContextProvider = ContextProvider;
exports.Element = Element;
exports.ForwardRef = ForwardRef;
exports.Fragment = Fragment;
exports.Lazy = Lazy;
exports.Memo = Memo;
exports.Portal = Portal;
exports.Profiler = Profiler;
exports.StrictMode = StrictMode;
exports.Suspense = Suspense;
exports.isValidElementType = isValidElementType;
exports.isAsyncMode = isAsyncMode;
exports.isConcurrentMode = isConcurrentMode;
exports.isContextConsumer = isContextConsumer;
exports.isContextProvider = isContextProvider;
exports.isElement = isElement;
exports.isForwardRef = isForwardRef;
exports.isFragment = isFragment;
exports.isLazy = isLazy;
exports.isMemo = isMemo;
exports.isPortal = isPortal;
exports.isProfiler = isProfiler;
exports.isStrictMode = isStrictMode;
exports.isSuspense = isSuspense;
  })();
}

}).call(this,require('_process'))
},{"_process":24}],44:[function(require,module,exports){
/** @license React v16.9.0
 * react-is.production.min.js
 *
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

'use strict';Object.defineProperty(exports,"__esModule",{value:!0});
var b="function"===typeof Symbol&&Symbol.for,c=b?Symbol.for("react.element"):60103,d=b?Symbol.for("react.portal"):60106,e=b?Symbol.for("react.fragment"):60107,f=b?Symbol.for("react.strict_mode"):60108,g=b?Symbol.for("react.profiler"):60114,h=b?Symbol.for("react.provider"):60109,k=b?Symbol.for("react.context"):60110,l=b?Symbol.for("react.async_mode"):60111,m=b?Symbol.for("react.concurrent_mode"):60111,n=b?Symbol.for("react.forward_ref"):60112,p=b?Symbol.for("react.suspense"):60113,q=b?Symbol.for("react.suspense_list"):
60120,r=b?Symbol.for("react.memo"):60115,t=b?Symbol.for("react.lazy"):60116,v=b?Symbol.for("react.fundamental"):60117,w=b?Symbol.for("react.responder"):60118;function x(a){if("object"===typeof a&&null!==a){var u=a.$$typeof;switch(u){case c:switch(a=a.type,a){case l:case m:case e:case g:case f:case p:return a;default:switch(a=a&&a.$$typeof,a){case k:case n:case h:return a;default:return u}}case t:case r:case d:return u}}}function y(a){return x(a)===m}exports.typeOf=x;exports.AsyncMode=l;
exports.ConcurrentMode=m;exports.ContextConsumer=k;exports.ContextProvider=h;exports.Element=c;exports.ForwardRef=n;exports.Fragment=e;exports.Lazy=t;exports.Memo=r;exports.Portal=d;exports.Profiler=g;exports.StrictMode=f;exports.Suspense=p;
exports.isValidElementType=function(a){return"string"===typeof a||"function"===typeof a||a===e||a===m||a===g||a===f||a===p||a===q||"object"===typeof a&&null!==a&&(a.$$typeof===t||a.$$typeof===r||a.$$typeof===h||a.$$typeof===k||a.$$typeof===n||a.$$typeof===v||a.$$typeof===w)};exports.isAsyncMode=function(a){return y(a)||x(a)===l};exports.isConcurrentMode=y;exports.isContextConsumer=function(a){return x(a)===k};exports.isContextProvider=function(a){return x(a)===h};
exports.isElement=function(a){return"object"===typeof a&&null!==a&&a.$$typeof===c};exports.isForwardRef=function(a){return x(a)===n};exports.isFragment=function(a){return x(a)===e};exports.isLazy=function(a){return x(a)===t};exports.isMemo=function(a){return x(a)===r};exports.isPortal=function(a){return x(a)===d};exports.isProfiler=function(a){return x(a)===g};exports.isStrictMode=function(a){return x(a)===f};exports.isSuspense=function(a){return x(a)===p};

},{}],45:[function(require,module,exports){
(function (process){
'use strict';

if (process.env.NODE_ENV === 'production') {
  module.exports = require('./cjs/react-is.production.min.js');
} else {
  module.exports = require('./cjs/react-is.development.js');
}

}).call(this,require('_process'))
},{"./cjs/react-is.development.js":43,"./cjs/react-is.production.min.js":44,"_process":24}],46:[function(require,module,exports){
"use strict";

exports.__esModule = true;

var _warning = require("warning");

var _warning2 = _interopRequireDefault(_warning);

var _react = require("react");

var _react2 = _interopRequireDefault(_react);

var _propTypes = require("prop-types");

var _propTypes2 = _interopRequireDefault(_propTypes);

var _history = require("history");

var _Router = require("./Router");

var _Router2 = _interopRequireDefault(_Router);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

/**
 * The public API for a <Router> that uses HTML5 history.
 */
var BrowserRouter = function (_React$Component) {
  _inherits(BrowserRouter, _React$Component);

  function BrowserRouter() {
    var _temp, _this, _ret;

    _classCallCheck(this, BrowserRouter);

    for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }

    return _ret = (_temp = (_this = _possibleConstructorReturn(this, _React$Component.call.apply(_React$Component, [this].concat(args))), _this), _this.history = (0, _history.createBrowserHistory)(_this.props), _temp), _possibleConstructorReturn(_this, _ret);
  }

  BrowserRouter.prototype.componentWillMount = function componentWillMount() {
    (0, _warning2.default)(!this.props.history, "<BrowserRouter> ignores the history prop. To use a custom history, " + "use `import { Router }` instead of `import { BrowserRouter as Router }`.");
  };

  BrowserRouter.prototype.render = function render() {
    return _react2.default.createElement(_Router2.default, { history: this.history, children: this.props.children });
  };

  return BrowserRouter;
}(_react2.default.Component);

BrowserRouter.propTypes = {
  basename: _propTypes2.default.string,
  forceRefresh: _propTypes2.default.bool,
  getUserConfirmation: _propTypes2.default.func,
  keyLength: _propTypes2.default.number,
  children: _propTypes2.default.node
};
exports.default = BrowserRouter;
},{"./Router":54,"history":14,"prop-types":28,"react":73,"warning":89}],47:[function(require,module,exports){
"use strict";

exports.__esModule = true;

var _warning = require("warning");

var _warning2 = _interopRequireDefault(_warning);

var _react = require("react");

var _react2 = _interopRequireDefault(_react);

var _propTypes = require("prop-types");

var _propTypes2 = _interopRequireDefault(_propTypes);

var _history = require("history");

var _Router = require("./Router");

var _Router2 = _interopRequireDefault(_Router);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

/**
 * The public API for a <Router> that uses window.location.hash.
 */
var HashRouter = function (_React$Component) {
  _inherits(HashRouter, _React$Component);

  function HashRouter() {
    var _temp, _this, _ret;

    _classCallCheck(this, HashRouter);

    for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }

    return _ret = (_temp = (_this = _possibleConstructorReturn(this, _React$Component.call.apply(_React$Component, [this].concat(args))), _this), _this.history = (0, _history.createHashHistory)(_this.props), _temp), _possibleConstructorReturn(_this, _ret);
  }

  HashRouter.prototype.componentWillMount = function componentWillMount() {
    (0, _warning2.default)(!this.props.history, "<HashRouter> ignores the history prop. To use a custom history, " + "use `import { Router }` instead of `import { HashRouter as Router }`.");
  };

  HashRouter.prototype.render = function render() {
    return _react2.default.createElement(_Router2.default, { history: this.history, children: this.props.children });
  };

  return HashRouter;
}(_react2.default.Component);

HashRouter.propTypes = {
  basename: _propTypes2.default.string,
  getUserConfirmation: _propTypes2.default.func,
  hashType: _propTypes2.default.oneOf(["hashbang", "noslash", "slash"]),
  children: _propTypes2.default.node
};
exports.default = HashRouter;
},{"./Router":54,"history":14,"prop-types":28,"react":73,"warning":89}],48:[function(require,module,exports){
"use strict";

exports.__esModule = true;

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

var _react = require("react");

var _react2 = _interopRequireDefault(_react);

var _propTypes = require("prop-types");

var _propTypes2 = _interopRequireDefault(_propTypes);

var _invariant = require("invariant");

var _invariant2 = _interopRequireDefault(_invariant);

var _history = require("history");

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _objectWithoutProperties(obj, keys) { var target = {}; for (var i in obj) { if (keys.indexOf(i) >= 0) continue; if (!Object.prototype.hasOwnProperty.call(obj, i)) continue; target[i] = obj[i]; } return target; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var isModifiedEvent = function isModifiedEvent(event) {
  return !!(event.metaKey || event.altKey || event.ctrlKey || event.shiftKey);
};

/**
 * The public API for rendering a history-aware <a>.
 */

var Link = function (_React$Component) {
  _inherits(Link, _React$Component);

  function Link() {
    var _temp, _this, _ret;

    _classCallCheck(this, Link);

    for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }

    return _ret = (_temp = (_this = _possibleConstructorReturn(this, _React$Component.call.apply(_React$Component, [this].concat(args))), _this), _this.handleClick = function (event) {
      if (_this.props.onClick) _this.props.onClick(event);

      if (!event.defaultPrevented && // onClick prevented default
      event.button === 0 && // ignore everything but left clicks
      !_this.props.target && // let browser handle "target=_blank" etc.
      !isModifiedEvent(event) // ignore clicks with modifier keys
      ) {
          event.preventDefault();

          var history = _this.context.router.history;
          var _this$props = _this.props,
              replace = _this$props.replace,
              to = _this$props.to;


          if (replace) {
            history.replace(to);
          } else {
            history.push(to);
          }
        }
    }, _temp), _possibleConstructorReturn(_this, _ret);
  }

  Link.prototype.render = function render() {
    var _props = this.props,
        replace = _props.replace,
        to = _props.to,
        innerRef = _props.innerRef,
        props = _objectWithoutProperties(_props, ["replace", "to", "innerRef"]); // eslint-disable-line no-unused-vars

    (0, _invariant2.default)(this.context.router, "You should not use <Link> outside a <Router>");

    (0, _invariant2.default)(to !== undefined, 'You must specify the "to" property');

    var history = this.context.router.history;

    var location = typeof to === "string" ? (0, _history.createLocation)(to, null, null, history.location) : to;

    var href = history.createHref(location);
    return _react2.default.createElement("a", _extends({}, props, { onClick: this.handleClick, href: href, ref: innerRef }));
  };

  return Link;
}(_react2.default.Component);

Link.propTypes = {
  onClick: _propTypes2.default.func,
  target: _propTypes2.default.string,
  replace: _propTypes2.default.bool,
  to: _propTypes2.default.oneOfType([_propTypes2.default.string, _propTypes2.default.object]).isRequired,
  innerRef: _propTypes2.default.oneOfType([_propTypes2.default.string, _propTypes2.default.func])
};
Link.defaultProps = {
  replace: false
};
Link.contextTypes = {
  router: _propTypes2.default.shape({
    history: _propTypes2.default.shape({
      push: _propTypes2.default.func.isRequired,
      replace: _propTypes2.default.func.isRequired,
      createHref: _propTypes2.default.func.isRequired
    }).isRequired
  }).isRequired
};
exports.default = Link;
},{"history":14,"invariant":16,"prop-types":28,"react":73}],49:[function(require,module,exports){
"use strict";

exports.__esModule = true;

var _MemoryRouter = require("react-router/MemoryRouter");

var _MemoryRouter2 = _interopRequireDefault(_MemoryRouter);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

exports.default = _MemoryRouter2.default; // Written in this round about way for babel-transform-imports
},{"react-router/MemoryRouter":61}],50:[function(require,module,exports){
"use strict";

exports.__esModule = true;

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };

var _react = require("react");

var _react2 = _interopRequireDefault(_react);

var _propTypes = require("prop-types");

var _propTypes2 = _interopRequireDefault(_propTypes);

var _Route = require("./Route");

var _Route2 = _interopRequireDefault(_Route);

var _Link = require("./Link");

var _Link2 = _interopRequireDefault(_Link);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _objectWithoutProperties(obj, keys) { var target = {}; for (var i in obj) { if (keys.indexOf(i) >= 0) continue; if (!Object.prototype.hasOwnProperty.call(obj, i)) continue; target[i] = obj[i]; } return target; }

/**
 * A <Link> wrapper that knows if it's "active" or not.
 */
var NavLink = function NavLink(_ref) {
  var to = _ref.to,
      exact = _ref.exact,
      strict = _ref.strict,
      location = _ref.location,
      activeClassName = _ref.activeClassName,
      className = _ref.className,
      activeStyle = _ref.activeStyle,
      style = _ref.style,
      getIsActive = _ref.isActive,
      ariaCurrent = _ref["aria-current"],
      rest = _objectWithoutProperties(_ref, ["to", "exact", "strict", "location", "activeClassName", "className", "activeStyle", "style", "isActive", "aria-current"]);

  var path = (typeof to === "undefined" ? "undefined" : _typeof(to)) === "object" ? to.pathname : to;

  // Regex taken from: https://github.com/pillarjs/path-to-regexp/blob/master/index.js#L202
  var escapedPath = path && path.replace(/([.+*?=^!:${}()[\]|/\\])/g, "\\$1");

  return _react2.default.createElement(_Route2.default, {
    path: escapedPath,
    exact: exact,
    strict: strict,
    location: location,
    children: function children(_ref2) {
      var location = _ref2.location,
          match = _ref2.match;

      var isActive = !!(getIsActive ? getIsActive(match, location) : match);

      return _react2.default.createElement(_Link2.default, _extends({
        to: to,
        className: isActive ? [className, activeClassName].filter(function (i) {
          return i;
        }).join(" ") : className,
        style: isActive ? _extends({}, style, activeStyle) : style,
        "aria-current": isActive && ariaCurrent || null
      }, rest));
    }
  });
};

NavLink.propTypes = {
  to: _Link2.default.propTypes.to,
  exact: _propTypes2.default.bool,
  strict: _propTypes2.default.bool,
  location: _propTypes2.default.object,
  activeClassName: _propTypes2.default.string,
  className: _propTypes2.default.string,
  activeStyle: _propTypes2.default.object,
  style: _propTypes2.default.object,
  isActive: _propTypes2.default.func,
  "aria-current": _propTypes2.default.oneOf(["page", "step", "location", "date", "time", "true"])
};

NavLink.defaultProps = {
  activeClassName: "active",
  "aria-current": "page"
};

exports.default = NavLink;
},{"./Link":48,"./Route":53,"prop-types":28,"react":73}],51:[function(require,module,exports){
"use strict";

exports.__esModule = true;

var _Prompt = require("react-router/Prompt");

var _Prompt2 = _interopRequireDefault(_Prompt);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

exports.default = _Prompt2.default; // Written in this round about way for babel-transform-imports
},{"react-router/Prompt":62}],52:[function(require,module,exports){
"use strict";

exports.__esModule = true;

var _Redirect = require("react-router/Redirect");

var _Redirect2 = _interopRequireDefault(_Redirect);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

exports.default = _Redirect2.default; // Written in this round about way for babel-transform-imports
},{"react-router/Redirect":63}],53:[function(require,module,exports){
"use strict";

exports.__esModule = true;

var _Route = require("react-router/Route");

var _Route2 = _interopRequireDefault(_Route);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

exports.default = _Route2.default; // Written in this round about way for babel-transform-imports
},{"react-router/Route":64}],54:[function(require,module,exports){
"use strict";

exports.__esModule = true;

var _Router = require("react-router/Router");

var _Router2 = _interopRequireDefault(_Router);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

exports.default = _Router2.default; // Written in this round about way for babel-transform-imports
},{"react-router/Router":65}],55:[function(require,module,exports){
"use strict";

exports.__esModule = true;

var _StaticRouter = require("react-router/StaticRouter");

var _StaticRouter2 = _interopRequireDefault(_StaticRouter);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

exports.default = _StaticRouter2.default; // Written in this round about way for babel-transform-imports
},{"react-router/StaticRouter":66}],56:[function(require,module,exports){
"use strict";

exports.__esModule = true;

var _Switch = require("react-router/Switch");

var _Switch2 = _interopRequireDefault(_Switch);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

exports.default = _Switch2.default; // Written in this round about way for babel-transform-imports
},{"react-router/Switch":67}],57:[function(require,module,exports){
"use strict";

exports.__esModule = true;

var _generatePath = require("react-router/generatePath");

var _generatePath2 = _interopRequireDefault(_generatePath);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

exports.default = _generatePath2.default; // Written in this round about way for babel-transform-imports
},{"react-router/generatePath":68}],58:[function(require,module,exports){
"use strict";

exports.__esModule = true;
exports.withRouter = exports.matchPath = exports.generatePath = exports.Switch = exports.StaticRouter = exports.Router = exports.Route = exports.Redirect = exports.Prompt = exports.NavLink = exports.MemoryRouter = exports.Link = exports.HashRouter = exports.BrowserRouter = undefined;

var _BrowserRouter2 = require("./BrowserRouter");

var _BrowserRouter3 = _interopRequireDefault(_BrowserRouter2);

var _HashRouter2 = require("./HashRouter");

var _HashRouter3 = _interopRequireDefault(_HashRouter2);

var _Link2 = require("./Link");

var _Link3 = _interopRequireDefault(_Link2);

var _MemoryRouter2 = require("./MemoryRouter");

var _MemoryRouter3 = _interopRequireDefault(_MemoryRouter2);

var _NavLink2 = require("./NavLink");

var _NavLink3 = _interopRequireDefault(_NavLink2);

var _Prompt2 = require("./Prompt");

var _Prompt3 = _interopRequireDefault(_Prompt2);

var _Redirect2 = require("./Redirect");

var _Redirect3 = _interopRequireDefault(_Redirect2);

var _Route2 = require("./Route");

var _Route3 = _interopRequireDefault(_Route2);

var _Router2 = require("./Router");

var _Router3 = _interopRequireDefault(_Router2);

var _StaticRouter2 = require("./StaticRouter");

var _StaticRouter3 = _interopRequireDefault(_StaticRouter2);

var _Switch2 = require("./Switch");

var _Switch3 = _interopRequireDefault(_Switch2);

var _generatePath2 = require("./generatePath");

var _generatePath3 = _interopRequireDefault(_generatePath2);

var _matchPath2 = require("./matchPath");

var _matchPath3 = _interopRequireDefault(_matchPath2);

var _withRouter2 = require("./withRouter");

var _withRouter3 = _interopRequireDefault(_withRouter2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

exports.BrowserRouter = _BrowserRouter3.default;
exports.HashRouter = _HashRouter3.default;
exports.Link = _Link3.default;
exports.MemoryRouter = _MemoryRouter3.default;
exports.NavLink = _NavLink3.default;
exports.Prompt = _Prompt3.default;
exports.Redirect = _Redirect3.default;
exports.Route = _Route3.default;
exports.Router = _Router3.default;
exports.StaticRouter = _StaticRouter3.default;
exports.Switch = _Switch3.default;
exports.generatePath = _generatePath3.default;
exports.matchPath = _matchPath3.default;
exports.withRouter = _withRouter3.default;
},{"./BrowserRouter":46,"./HashRouter":47,"./Link":48,"./MemoryRouter":49,"./NavLink":50,"./Prompt":51,"./Redirect":52,"./Route":53,"./Router":54,"./StaticRouter":55,"./Switch":56,"./generatePath":57,"./matchPath":59,"./withRouter":60}],59:[function(require,module,exports){
"use strict";

exports.__esModule = true;

var _matchPath = require("react-router/matchPath");

var _matchPath2 = _interopRequireDefault(_matchPath);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

exports.default = _matchPath2.default; // Written in this round about way for babel-transform-imports
},{"react-router/matchPath":69}],60:[function(require,module,exports){
"use strict";

exports.__esModule = true;

var _withRouter = require("react-router/withRouter");

var _withRouter2 = _interopRequireDefault(_withRouter);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

exports.default = _withRouter2.default; // Written in this round about way for babel-transform-imports
},{"react-router/withRouter":70}],61:[function(require,module,exports){
"use strict";

exports.__esModule = true;

var _warning = require("warning");

var _warning2 = _interopRequireDefault(_warning);

var _react = require("react");

var _react2 = _interopRequireDefault(_react);

var _propTypes = require("prop-types");

var _propTypes2 = _interopRequireDefault(_propTypes);

var _history = require("history");

var _Router = require("./Router");

var _Router2 = _interopRequireDefault(_Router);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

/**
 * The public API for a <Router> that stores location in memory.
 */
var MemoryRouter = function (_React$Component) {
  _inherits(MemoryRouter, _React$Component);

  function MemoryRouter() {
    var _temp, _this, _ret;

    _classCallCheck(this, MemoryRouter);

    for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }

    return _ret = (_temp = (_this = _possibleConstructorReturn(this, _React$Component.call.apply(_React$Component, [this].concat(args))), _this), _this.history = (0, _history.createMemoryHistory)(_this.props), _temp), _possibleConstructorReturn(_this, _ret);
  }

  MemoryRouter.prototype.componentWillMount = function componentWillMount() {
    (0, _warning2.default)(!this.props.history, "<MemoryRouter> ignores the history prop. To use a custom history, " + "use `import { Router }` instead of `import { MemoryRouter as Router }`.");
  };

  MemoryRouter.prototype.render = function render() {
    return _react2.default.createElement(_Router2.default, { history: this.history, children: this.props.children });
  };

  return MemoryRouter;
}(_react2.default.Component);

MemoryRouter.propTypes = {
  initialEntries: _propTypes2.default.array,
  initialIndex: _propTypes2.default.number,
  getUserConfirmation: _propTypes2.default.func,
  keyLength: _propTypes2.default.number,
  children: _propTypes2.default.node
};
exports.default = MemoryRouter;
},{"./Router":65,"history":14,"prop-types":28,"react":73,"warning":89}],62:[function(require,module,exports){
"use strict";

exports.__esModule = true;

var _react = require("react");

var _react2 = _interopRequireDefault(_react);

var _propTypes = require("prop-types");

var _propTypes2 = _interopRequireDefault(_propTypes);

var _invariant = require("invariant");

var _invariant2 = _interopRequireDefault(_invariant);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

/**
 * The public API for prompting the user before navigating away
 * from a screen with a component.
 */
var Prompt = function (_React$Component) {
  _inherits(Prompt, _React$Component);

  function Prompt() {
    _classCallCheck(this, Prompt);

    return _possibleConstructorReturn(this, _React$Component.apply(this, arguments));
  }

  Prompt.prototype.enable = function enable(message) {
    if (this.unblock) this.unblock();

    this.unblock = this.context.router.history.block(message);
  };

  Prompt.prototype.disable = function disable() {
    if (this.unblock) {
      this.unblock();
      this.unblock = null;
    }
  };

  Prompt.prototype.componentWillMount = function componentWillMount() {
    (0, _invariant2.default)(this.context.router, "You should not use <Prompt> outside a <Router>");

    if (this.props.when) this.enable(this.props.message);
  };

  Prompt.prototype.componentWillReceiveProps = function componentWillReceiveProps(nextProps) {
    if (nextProps.when) {
      if (!this.props.when || this.props.message !== nextProps.message) this.enable(nextProps.message);
    } else {
      this.disable();
    }
  };

  Prompt.prototype.componentWillUnmount = function componentWillUnmount() {
    this.disable();
  };

  Prompt.prototype.render = function render() {
    return null;
  };

  return Prompt;
}(_react2.default.Component);

Prompt.propTypes = {
  when: _propTypes2.default.bool,
  message: _propTypes2.default.oneOfType([_propTypes2.default.func, _propTypes2.default.string]).isRequired
};
Prompt.defaultProps = {
  when: true
};
Prompt.contextTypes = {
  router: _propTypes2.default.shape({
    history: _propTypes2.default.shape({
      block: _propTypes2.default.func.isRequired
    }).isRequired
  }).isRequired
};
exports.default = Prompt;
},{"invariant":16,"prop-types":28,"react":73}],63:[function(require,module,exports){
"use strict";

exports.__esModule = true;

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

var _react = require("react");

var _react2 = _interopRequireDefault(_react);

var _propTypes = require("prop-types");

var _propTypes2 = _interopRequireDefault(_propTypes);

var _warning = require("warning");

var _warning2 = _interopRequireDefault(_warning);

var _invariant = require("invariant");

var _invariant2 = _interopRequireDefault(_invariant);

var _history = require("history");

var _generatePath = require("./generatePath");

var _generatePath2 = _interopRequireDefault(_generatePath);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

/**
 * The public API for updating the location programmatically
 * with a component.
 */
var Redirect = function (_React$Component) {
  _inherits(Redirect, _React$Component);

  function Redirect() {
    _classCallCheck(this, Redirect);

    return _possibleConstructorReturn(this, _React$Component.apply(this, arguments));
  }

  Redirect.prototype.isStatic = function isStatic() {
    return this.context.router && this.context.router.staticContext;
  };

  Redirect.prototype.componentWillMount = function componentWillMount() {
    (0, _invariant2.default)(this.context.router, "You should not use <Redirect> outside a <Router>");

    if (this.isStatic()) this.perform();
  };

  Redirect.prototype.componentDidMount = function componentDidMount() {
    if (!this.isStatic()) this.perform();
  };

  Redirect.prototype.componentDidUpdate = function componentDidUpdate(prevProps) {
    var prevTo = (0, _history.createLocation)(prevProps.to);
    var nextTo = (0, _history.createLocation)(this.props.to);

    if ((0, _history.locationsAreEqual)(prevTo, nextTo)) {
      (0, _warning2.default)(false, "You tried to redirect to the same route you're currently on: " + ("\"" + nextTo.pathname + nextTo.search + "\""));
      return;
    }

    this.perform();
  };

  Redirect.prototype.computeTo = function computeTo(_ref) {
    var computedMatch = _ref.computedMatch,
        to = _ref.to;

    if (computedMatch) {
      if (typeof to === "string") {
        return (0, _generatePath2.default)(to, computedMatch.params);
      } else {
        return _extends({}, to, {
          pathname: (0, _generatePath2.default)(to.pathname, computedMatch.params)
        });
      }
    }

    return to;
  };

  Redirect.prototype.perform = function perform() {
    var history = this.context.router.history;
    var push = this.props.push;

    var to = this.computeTo(this.props);

    if (push) {
      history.push(to);
    } else {
      history.replace(to);
    }
  };

  Redirect.prototype.render = function render() {
    return null;
  };

  return Redirect;
}(_react2.default.Component);

Redirect.propTypes = {
  computedMatch: _propTypes2.default.object, // private, from <Switch>
  push: _propTypes2.default.bool,
  from: _propTypes2.default.string,
  to: _propTypes2.default.oneOfType([_propTypes2.default.string, _propTypes2.default.object]).isRequired
};
Redirect.defaultProps = {
  push: false
};
Redirect.contextTypes = {
  router: _propTypes2.default.shape({
    history: _propTypes2.default.shape({
      push: _propTypes2.default.func.isRequired,
      replace: _propTypes2.default.func.isRequired
    }).isRequired,
    staticContext: _propTypes2.default.object
  }).isRequired
};
exports.default = Redirect;
},{"./generatePath":68,"history":14,"invariant":16,"prop-types":28,"react":73,"warning":89}],64:[function(require,module,exports){
"use strict";

exports.__esModule = true;

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

var _warning = require("warning");

var _warning2 = _interopRequireDefault(_warning);

var _invariant = require("invariant");

var _invariant2 = _interopRequireDefault(_invariant);

var _react = require("react");

var _react2 = _interopRequireDefault(_react);

var _propTypes = require("prop-types");

var _propTypes2 = _interopRequireDefault(_propTypes);

var _matchPath = require("./matchPath");

var _matchPath2 = _interopRequireDefault(_matchPath);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var isEmptyChildren = function isEmptyChildren(children) {
  return _react2.default.Children.count(children) === 0;
};

/**
 * The public API for matching a single path and rendering.
 */

var Route = function (_React$Component) {
  _inherits(Route, _React$Component);

  function Route() {
    var _temp, _this, _ret;

    _classCallCheck(this, Route);

    for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }

    return _ret = (_temp = (_this = _possibleConstructorReturn(this, _React$Component.call.apply(_React$Component, [this].concat(args))), _this), _this.state = {
      match: _this.computeMatch(_this.props, _this.context.router)
    }, _temp), _possibleConstructorReturn(_this, _ret);
  }

  Route.prototype.getChildContext = function getChildContext() {
    return {
      router: _extends({}, this.context.router, {
        route: {
          location: this.props.location || this.context.router.route.location,
          match: this.state.match
        }
      })
    };
  };

  Route.prototype.computeMatch = function computeMatch(_ref, router) {
    var computedMatch = _ref.computedMatch,
        location = _ref.location,
        path = _ref.path,
        strict = _ref.strict,
        exact = _ref.exact,
        sensitive = _ref.sensitive;

    if (computedMatch) return computedMatch; // <Switch> already computed the match for us

    (0, _invariant2.default)(router, "You should not use <Route> or withRouter() outside a <Router>");

    var route = router.route;

    var pathname = (location || route.location).pathname;

    return (0, _matchPath2.default)(pathname, { path: path, strict: strict, exact: exact, sensitive: sensitive }, route.match);
  };

  Route.prototype.componentWillMount = function componentWillMount() {
    (0, _warning2.default)(!(this.props.component && this.props.render), "You should not use <Route component> and <Route render> in the same route; <Route render> will be ignored");

    (0, _warning2.default)(!(this.props.component && this.props.children && !isEmptyChildren(this.props.children)), "You should not use <Route component> and <Route children> in the same route; <Route children> will be ignored");

    (0, _warning2.default)(!(this.props.render && this.props.children && !isEmptyChildren(this.props.children)), "You should not use <Route render> and <Route children> in the same route; <Route children> will be ignored");
  };

  Route.prototype.componentWillReceiveProps = function componentWillReceiveProps(nextProps, nextContext) {
    (0, _warning2.default)(!(nextProps.location && !this.props.location), '<Route> elements should not change from uncontrolled to controlled (or vice versa). You initially used no "location" prop and then provided one on a subsequent render.');

    (0, _warning2.default)(!(!nextProps.location && this.props.location), '<Route> elements should not change from controlled to uncontrolled (or vice versa). You provided a "location" prop initially but omitted it on a subsequent render.');

    this.setState({
      match: this.computeMatch(nextProps, nextContext.router)
    });
  };

  Route.prototype.render = function render() {
    var match = this.state.match;
    var _props = this.props,
        children = _props.children,
        component = _props.component,
        render = _props.render;
    var _context$router = this.context.router,
        history = _context$router.history,
        route = _context$router.route,
        staticContext = _context$router.staticContext;

    var location = this.props.location || route.location;
    var props = { match: match, location: location, history: history, staticContext: staticContext };

    if (component) return match ? _react2.default.createElement(component, props) : null;

    if (render) return match ? render(props) : null;

    if (typeof children === "function") return children(props);

    if (children && !isEmptyChildren(children)) return _react2.default.Children.only(children);

    return null;
  };

  return Route;
}(_react2.default.Component);

Route.propTypes = {
  computedMatch: _propTypes2.default.object, // private, from <Switch>
  path: _propTypes2.default.string,
  exact: _propTypes2.default.bool,
  strict: _propTypes2.default.bool,
  sensitive: _propTypes2.default.bool,
  component: _propTypes2.default.func,
  render: _propTypes2.default.func,
  children: _propTypes2.default.oneOfType([_propTypes2.default.func, _propTypes2.default.node]),
  location: _propTypes2.default.object
};
Route.contextTypes = {
  router: _propTypes2.default.shape({
    history: _propTypes2.default.object.isRequired,
    route: _propTypes2.default.object.isRequired,
    staticContext: _propTypes2.default.object
  })
};
Route.childContextTypes = {
  router: _propTypes2.default.object.isRequired
};
exports.default = Route;
},{"./matchPath":69,"invariant":16,"prop-types":28,"react":73,"warning":89}],65:[function(require,module,exports){
"use strict";

exports.__esModule = true;

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

var _warning = require("warning");

var _warning2 = _interopRequireDefault(_warning);

var _invariant = require("invariant");

var _invariant2 = _interopRequireDefault(_invariant);

var _react = require("react");

var _react2 = _interopRequireDefault(_react);

var _propTypes = require("prop-types");

var _propTypes2 = _interopRequireDefault(_propTypes);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

/**
 * The public API for putting history on context.
 */
var Router = function (_React$Component) {
  _inherits(Router, _React$Component);

  function Router() {
    var _temp, _this, _ret;

    _classCallCheck(this, Router);

    for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }

    return _ret = (_temp = (_this = _possibleConstructorReturn(this, _React$Component.call.apply(_React$Component, [this].concat(args))), _this), _this.state = {
      match: _this.computeMatch(_this.props.history.location.pathname)
    }, _temp), _possibleConstructorReturn(_this, _ret);
  }

  Router.prototype.getChildContext = function getChildContext() {
    return {
      router: _extends({}, this.context.router, {
        history: this.props.history,
        route: {
          location: this.props.history.location,
          match: this.state.match
        }
      })
    };
  };

  Router.prototype.computeMatch = function computeMatch(pathname) {
    return {
      path: "/",
      url: "/",
      params: {},
      isExact: pathname === "/"
    };
  };

  Router.prototype.componentWillMount = function componentWillMount() {
    var _this2 = this;

    var _props = this.props,
        children = _props.children,
        history = _props.history;


    (0, _invariant2.default)(children == null || _react2.default.Children.count(children) === 1, "A <Router> may have only one child element");

    // Do this here so we can setState when a <Redirect> changes the
    // location in componentWillMount. This happens e.g. when doing
    // server rendering using a <StaticRouter>.
    this.unlisten = history.listen(function () {
      _this2.setState({
        match: _this2.computeMatch(history.location.pathname)
      });
    });
  };

  Router.prototype.componentWillReceiveProps = function componentWillReceiveProps(nextProps) {
    (0, _warning2.default)(this.props.history === nextProps.history, "You cannot change <Router history>");
  };

  Router.prototype.componentWillUnmount = function componentWillUnmount() {
    this.unlisten();
  };

  Router.prototype.render = function render() {
    var children = this.props.children;

    return children ? _react2.default.Children.only(children) : null;
  };

  return Router;
}(_react2.default.Component);

Router.propTypes = {
  history: _propTypes2.default.object.isRequired,
  children: _propTypes2.default.node
};
Router.contextTypes = {
  router: _propTypes2.default.object
};
Router.childContextTypes = {
  router: _propTypes2.default.object.isRequired
};
exports.default = Router;
},{"invariant":16,"prop-types":28,"react":73,"warning":89}],66:[function(require,module,exports){
"use strict";

exports.__esModule = true;

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

var _warning = require("warning");

var _warning2 = _interopRequireDefault(_warning);

var _invariant = require("invariant");

var _invariant2 = _interopRequireDefault(_invariant);

var _react = require("react");

var _react2 = _interopRequireDefault(_react);

var _propTypes = require("prop-types");

var _propTypes2 = _interopRequireDefault(_propTypes);

var _history = require("history");

var _Router = require("./Router");

var _Router2 = _interopRequireDefault(_Router);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _objectWithoutProperties(obj, keys) { var target = {}; for (var i in obj) { if (keys.indexOf(i) >= 0) continue; if (!Object.prototype.hasOwnProperty.call(obj, i)) continue; target[i] = obj[i]; } return target; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var addLeadingSlash = function addLeadingSlash(path) {
  return path.charAt(0) === "/" ? path : "/" + path;
};

var addBasename = function addBasename(basename, location) {
  if (!basename) return location;

  return _extends({}, location, {
    pathname: addLeadingSlash(basename) + location.pathname
  });
};

var stripBasename = function stripBasename(basename, location) {
  if (!basename) return location;

  var base = addLeadingSlash(basename);

  if (location.pathname.indexOf(base) !== 0) return location;

  return _extends({}, location, {
    pathname: location.pathname.substr(base.length)
  });
};

var createURL = function createURL(location) {
  return typeof location === "string" ? location : (0, _history.createPath)(location);
};

var staticHandler = function staticHandler(methodName) {
  return function () {
    (0, _invariant2.default)(false, "You cannot %s with <StaticRouter>", methodName);
  };
};

var noop = function noop() {};

/**
 * The public top-level API for a "static" <Router>, so-called because it
 * can't actually change the current location. Instead, it just records
 * location changes in a context object. Useful mainly in testing and
 * server-rendering scenarios.
 */

var StaticRouter = function (_React$Component) {
  _inherits(StaticRouter, _React$Component);

  function StaticRouter() {
    var _temp, _this, _ret;

    _classCallCheck(this, StaticRouter);

    for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }

    return _ret = (_temp = (_this = _possibleConstructorReturn(this, _React$Component.call.apply(_React$Component, [this].concat(args))), _this), _this.createHref = function (path) {
      return addLeadingSlash(_this.props.basename + createURL(path));
    }, _this.handlePush = function (location) {
      var _this$props = _this.props,
          basename = _this$props.basename,
          context = _this$props.context;

      context.action = "PUSH";
      context.location = addBasename(basename, (0, _history.createLocation)(location));
      context.url = createURL(context.location);
    }, _this.handleReplace = function (location) {
      var _this$props2 = _this.props,
          basename = _this$props2.basename,
          context = _this$props2.context;

      context.action = "REPLACE";
      context.location = addBasename(basename, (0, _history.createLocation)(location));
      context.url = createURL(context.location);
    }, _this.handleListen = function () {
      return noop;
    }, _this.handleBlock = function () {
      return noop;
    }, _temp), _possibleConstructorReturn(_this, _ret);
  }

  StaticRouter.prototype.getChildContext = function getChildContext() {
    return {
      router: {
        staticContext: this.props.context
      }
    };
  };

  StaticRouter.prototype.componentWillMount = function componentWillMount() {
    (0, _warning2.default)(!this.props.history, "<StaticRouter> ignores the history prop. To use a custom history, " + "use `import { Router }` instead of `import { StaticRouter as Router }`.");
  };

  StaticRouter.prototype.render = function render() {
    var _props = this.props,
        basename = _props.basename,
        context = _props.context,
        location = _props.location,
        props = _objectWithoutProperties(_props, ["basename", "context", "location"]);

    var history = {
      createHref: this.createHref,
      action: "POP",
      location: stripBasename(basename, (0, _history.createLocation)(location)),
      push: this.handlePush,
      replace: this.handleReplace,
      go: staticHandler("go"),
      goBack: staticHandler("goBack"),
      goForward: staticHandler("goForward"),
      listen: this.handleListen,
      block: this.handleBlock
    };

    return _react2.default.createElement(_Router2.default, _extends({}, props, { history: history }));
  };

  return StaticRouter;
}(_react2.default.Component);

StaticRouter.propTypes = {
  basename: _propTypes2.default.string,
  context: _propTypes2.default.object.isRequired,
  location: _propTypes2.default.oneOfType([_propTypes2.default.string, _propTypes2.default.object])
};
StaticRouter.defaultProps = {
  basename: "",
  location: "/"
};
StaticRouter.childContextTypes = {
  router: _propTypes2.default.object.isRequired
};
exports.default = StaticRouter;
},{"./Router":65,"history":14,"invariant":16,"prop-types":28,"react":73,"warning":89}],67:[function(require,module,exports){
"use strict";

exports.__esModule = true;

var _react = require("react");

var _react2 = _interopRequireDefault(_react);

var _propTypes = require("prop-types");

var _propTypes2 = _interopRequireDefault(_propTypes);

var _warning = require("warning");

var _warning2 = _interopRequireDefault(_warning);

var _invariant = require("invariant");

var _invariant2 = _interopRequireDefault(_invariant);

var _matchPath = require("./matchPath");

var _matchPath2 = _interopRequireDefault(_matchPath);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

/**
 * The public API for rendering the first <Route> that matches.
 */
var Switch = function (_React$Component) {
  _inherits(Switch, _React$Component);

  function Switch() {
    _classCallCheck(this, Switch);

    return _possibleConstructorReturn(this, _React$Component.apply(this, arguments));
  }

  Switch.prototype.componentWillMount = function componentWillMount() {
    (0, _invariant2.default)(this.context.router, "You should not use <Switch> outside a <Router>");
  };

  Switch.prototype.componentWillReceiveProps = function componentWillReceiveProps(nextProps) {
    (0, _warning2.default)(!(nextProps.location && !this.props.location), '<Switch> elements should not change from uncontrolled to controlled (or vice versa). You initially used no "location" prop and then provided one on a subsequent render.');

    (0, _warning2.default)(!(!nextProps.location && this.props.location), '<Switch> elements should not change from controlled to uncontrolled (or vice versa). You provided a "location" prop initially but omitted it on a subsequent render.');
  };

  Switch.prototype.render = function render() {
    var route = this.context.router.route;
    var children = this.props.children;

    var location = this.props.location || route.location;

    var match = void 0,
        child = void 0;
    _react2.default.Children.forEach(children, function (element) {
      if (match == null && _react2.default.isValidElement(element)) {
        var _element$props = element.props,
            pathProp = _element$props.path,
            exact = _element$props.exact,
            strict = _element$props.strict,
            sensitive = _element$props.sensitive,
            from = _element$props.from;

        var path = pathProp || from;

        child = element;
        match = (0, _matchPath2.default)(location.pathname, { path: path, exact: exact, strict: strict, sensitive: sensitive }, route.match);
      }
    });

    return match ? _react2.default.cloneElement(child, { location: location, computedMatch: match }) : null;
  };

  return Switch;
}(_react2.default.Component);

Switch.contextTypes = {
  router: _propTypes2.default.shape({
    route: _propTypes2.default.object.isRequired
  }).isRequired
};
Switch.propTypes = {
  children: _propTypes2.default.node,
  location: _propTypes2.default.object
};
exports.default = Switch;
},{"./matchPath":69,"invariant":16,"prop-types":28,"react":73,"warning":89}],68:[function(require,module,exports){
"use strict";

exports.__esModule = true;

var _pathToRegexp = require("path-to-regexp");

var _pathToRegexp2 = _interopRequireDefault(_pathToRegexp);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var patternCache = {};
var cacheLimit = 10000;
var cacheCount = 0;

var compileGenerator = function compileGenerator(pattern) {
  var cacheKey = pattern;
  var cache = patternCache[cacheKey] || (patternCache[cacheKey] = {});

  if (cache[pattern]) return cache[pattern];

  var compiledGenerator = _pathToRegexp2.default.compile(pattern);

  if (cacheCount < cacheLimit) {
    cache[pattern] = compiledGenerator;
    cacheCount++;
  }

  return compiledGenerator;
};

/**
 * Public API for generating a URL pathname from a pattern and parameters.
 */
var generatePath = function generatePath() {
  var pattern = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : "/";
  var params = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

  if (pattern === "/") {
    return pattern;
  }
  var generator = compileGenerator(pattern);
  return generator(params, { pretty: true });
};

exports.default = generatePath;
},{"path-to-regexp":21}],69:[function(require,module,exports){
"use strict";

exports.__esModule = true;

var _pathToRegexp = require("path-to-regexp");

var _pathToRegexp2 = _interopRequireDefault(_pathToRegexp);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var patternCache = {};
var cacheLimit = 10000;
var cacheCount = 0;

var compilePath = function compilePath(pattern, options) {
  var cacheKey = "" + options.end + options.strict + options.sensitive;
  var cache = patternCache[cacheKey] || (patternCache[cacheKey] = {});

  if (cache[pattern]) return cache[pattern];

  var keys = [];
  var re = (0, _pathToRegexp2.default)(pattern, keys, options);
  var compiledPattern = { re: re, keys: keys };

  if (cacheCount < cacheLimit) {
    cache[pattern] = compiledPattern;
    cacheCount++;
  }

  return compiledPattern;
};

/**
 * Public API for matching a URL pathname to a path pattern.
 */
var matchPath = function matchPath(pathname) {
  var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
  var parent = arguments[2];

  if (typeof options === "string") options = { path: options };

  var _options = options,
      path = _options.path,
      _options$exact = _options.exact,
      exact = _options$exact === undefined ? false : _options$exact,
      _options$strict = _options.strict,
      strict = _options$strict === undefined ? false : _options$strict,
      _options$sensitive = _options.sensitive,
      sensitive = _options$sensitive === undefined ? false : _options$sensitive;


  if (path == null) return parent;

  var _compilePath = compilePath(path, { end: exact, strict: strict, sensitive: sensitive }),
      re = _compilePath.re,
      keys = _compilePath.keys;

  var match = re.exec(pathname);

  if (!match) return null;

  var url = match[0],
      values = match.slice(1);

  var isExact = pathname === url;

  if (exact && !isExact) return null;

  return {
    path: path, // the path pattern used to match
    url: path === "/" && url === "" ? "/" : url, // the matched portion of the URL
    isExact: isExact, // whether or not we matched exactly
    params: keys.reduce(function (memo, key, index) {
      memo[key.name] = values[index];
      return memo;
    }, {})
  };
};

exports.default = matchPath;
},{"path-to-regexp":21}],70:[function(require,module,exports){
"use strict";

exports.__esModule = true;

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

var _react = require("react");

var _react2 = _interopRequireDefault(_react);

var _propTypes = require("prop-types");

var _propTypes2 = _interopRequireDefault(_propTypes);

var _hoistNonReactStatics = require("hoist-non-react-statics");

var _hoistNonReactStatics2 = _interopRequireDefault(_hoistNonReactStatics);

var _Route = require("./Route");

var _Route2 = _interopRequireDefault(_Route);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _objectWithoutProperties(obj, keys) { var target = {}; for (var i in obj) { if (keys.indexOf(i) >= 0) continue; if (!Object.prototype.hasOwnProperty.call(obj, i)) continue; target[i] = obj[i]; } return target; }

/**
 * A public higher-order component to access the imperative API
 */
var withRouter = function withRouter(Component) {
  var C = function C(props) {
    var wrappedComponentRef = props.wrappedComponentRef,
        remainingProps = _objectWithoutProperties(props, ["wrappedComponentRef"]);

    return _react2.default.createElement(_Route2.default, {
      children: function children(routeComponentProps) {
        return _react2.default.createElement(Component, _extends({}, remainingProps, routeComponentProps, {
          ref: wrappedComponentRef
        }));
      }
    });
  };

  C.displayName = "withRouter(" + (Component.displayName || Component.name) + ")";
  C.WrappedComponent = Component;
  C.propTypes = {
    wrappedComponentRef: _propTypes2.default.func
  };

  return (0, _hoistNonReactStatics2.default)(C, Component);
};

exports.default = withRouter;
},{"./Route":64,"hoist-non-react-statics":15,"prop-types":28,"react":73}],71:[function(require,module,exports){
(function (process){
/** @license React v16.9.0
 * react.development.js
 *
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

'use strict';



if (process.env.NODE_ENV !== "production") {
  (function() {
'use strict';

var _assign = require('object-assign');
var checkPropTypes = require('prop-types/checkPropTypes');

// TODO: this is special because it gets imported during build.

var ReactVersion = '16.9.0';

// The Symbol used to tag the ReactElement-like types. If there is no native Symbol
// nor polyfill, then a plain number is used for performance.
var hasSymbol = typeof Symbol === 'function' && Symbol.for;

var REACT_ELEMENT_TYPE = hasSymbol ? Symbol.for('react.element') : 0xeac7;
var REACT_PORTAL_TYPE = hasSymbol ? Symbol.for('react.portal') : 0xeaca;
var REACT_FRAGMENT_TYPE = hasSymbol ? Symbol.for('react.fragment') : 0xeacb;
var REACT_STRICT_MODE_TYPE = hasSymbol ? Symbol.for('react.strict_mode') : 0xeacc;
var REACT_PROFILER_TYPE = hasSymbol ? Symbol.for('react.profiler') : 0xead2;
var REACT_PROVIDER_TYPE = hasSymbol ? Symbol.for('react.provider') : 0xeacd;
var REACT_CONTEXT_TYPE = hasSymbol ? Symbol.for('react.context') : 0xeace;
// TODO: We don't use AsyncMode or ConcurrentMode anymore. They were temporary
// (unstable) APIs that have been removed. Can we remove the symbols?

var REACT_CONCURRENT_MODE_TYPE = hasSymbol ? Symbol.for('react.concurrent_mode') : 0xeacf;
var REACT_FORWARD_REF_TYPE = hasSymbol ? Symbol.for('react.forward_ref') : 0xead0;
var REACT_SUSPENSE_TYPE = hasSymbol ? Symbol.for('react.suspense') : 0xead1;
var REACT_SUSPENSE_LIST_TYPE = hasSymbol ? Symbol.for('react.suspense_list') : 0xead8;
var REACT_MEMO_TYPE = hasSymbol ? Symbol.for('react.memo') : 0xead3;
var REACT_LAZY_TYPE = hasSymbol ? Symbol.for('react.lazy') : 0xead4;
var REACT_FUNDAMENTAL_TYPE = hasSymbol ? Symbol.for('react.fundamental') : 0xead5;
var REACT_RESPONDER_TYPE = hasSymbol ? Symbol.for('react.responder') : 0xead6;

var MAYBE_ITERATOR_SYMBOL = typeof Symbol === 'function' && Symbol.iterator;
var FAUX_ITERATOR_SYMBOL = '@@iterator';

function getIteratorFn(maybeIterable) {
  if (maybeIterable === null || typeof maybeIterable !== 'object') {
    return null;
  }
  var maybeIterator = MAYBE_ITERATOR_SYMBOL && maybeIterable[MAYBE_ITERATOR_SYMBOL] || maybeIterable[FAUX_ITERATOR_SYMBOL];
  if (typeof maybeIterator === 'function') {
    return maybeIterator;
  }
  return null;
}

// Do not require this module directly! Use normal `invariant` calls with
// template literal strings. The messages will be converted to ReactError during
// build, and in production they will be minified.

// Do not require this module directly! Use normal `invariant` calls with
// template literal strings. The messages will be converted to ReactError during
// build, and in production they will be minified.

function ReactError(error) {
  error.name = 'Invariant Violation';
  return error;
}

/**
 * Use invariant() to assert state which your program assumes to be true.
 *
 * Provide sprintf-style format (only %s is supported) and arguments
 * to provide information about what broke and what you were
 * expecting.
 *
 * The invariant message will be stripped in production, but the invariant
 * will remain to ensure logic does not differ in production.
 */

/**
 * Forked from fbjs/warning:
 * https://github.com/facebook/fbjs/blob/e66ba20ad5be433eb54423f2b097d829324d9de6/packages/fbjs/src/__forks__/warning.js
 *
 * Only change is we use console.warn instead of console.error,
 * and do nothing when 'console' is not supported.
 * This really simplifies the code.
 * ---
 * Similar to invariant but only logs a warning if the condition is not met.
 * This can be used to log issues in development environments in critical
 * paths. Removing the logging code for production environments will keep the
 * same logic and follow the same code paths.
 */

var lowPriorityWarning = function () {};

{
  var printWarning = function (format) {
    for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
      args[_key - 1] = arguments[_key];
    }

    var argIndex = 0;
    var message = 'Warning: ' + format.replace(/%s/g, function () {
      return args[argIndex++];
    });
    if (typeof console !== 'undefined') {
      console.warn(message);
    }
    try {
      // --- Welcome to debugging React ---
      // This error was thrown as a convenience so that you can use this stack
      // to find the callsite that caused this warning to fire.
      throw new Error(message);
    } catch (x) {}
  };

  lowPriorityWarning = function (condition, format) {
    if (format === undefined) {
      throw new Error('`lowPriorityWarning(condition, format, ...args)` requires a warning ' + 'message argument');
    }
    if (!condition) {
      for (var _len2 = arguments.length, args = Array(_len2 > 2 ? _len2 - 2 : 0), _key2 = 2; _key2 < _len2; _key2++) {
        args[_key2 - 2] = arguments[_key2];
      }

      printWarning.apply(undefined, [format].concat(args));
    }
  };
}

var lowPriorityWarning$1 = lowPriorityWarning;

/**
 * Similar to invariant but only logs a warning if the condition is not met.
 * This can be used to log issues in development environments in critical
 * paths. Removing the logging code for production environments will keep the
 * same logic and follow the same code paths.
 */

var warningWithoutStack = function () {};

{
  warningWithoutStack = function (condition, format) {
    for (var _len = arguments.length, args = Array(_len > 2 ? _len - 2 : 0), _key = 2; _key < _len; _key++) {
      args[_key - 2] = arguments[_key];
    }

    if (format === undefined) {
      throw new Error('`warningWithoutStack(condition, format, ...args)` requires a warning ' + 'message argument');
    }
    if (args.length > 8) {
      // Check before the condition to catch violations early.
      throw new Error('warningWithoutStack() currently supports at most 8 arguments.');
    }
    if (condition) {
      return;
    }
    if (typeof console !== 'undefined') {
      var argsWithFormat = args.map(function (item) {
        return '' + item;
      });
      argsWithFormat.unshift('Warning: ' + format);

      // We intentionally don't use spread (or .apply) directly because it
      // breaks IE9: https://github.com/facebook/react/issues/13610
      Function.prototype.apply.call(console.error, console, argsWithFormat);
    }
    try {
      // --- Welcome to debugging React ---
      // This error was thrown as a convenience so that you can use this stack
      // to find the callsite that caused this warning to fire.
      var argIndex = 0;
      var message = 'Warning: ' + format.replace(/%s/g, function () {
        return args[argIndex++];
      });
      throw new Error(message);
    } catch (x) {}
  };
}

var warningWithoutStack$1 = warningWithoutStack;

var didWarnStateUpdateForUnmountedComponent = {};

function warnNoop(publicInstance, callerName) {
  {
    var _constructor = publicInstance.constructor;
    var componentName = _constructor && (_constructor.displayName || _constructor.name) || 'ReactClass';
    var warningKey = componentName + '.' + callerName;
    if (didWarnStateUpdateForUnmountedComponent[warningKey]) {
      return;
    }
    warningWithoutStack$1(false, "Can't call %s on a component that is not yet mounted. " + 'This is a no-op, but it might indicate a bug in your application. ' + 'Instead, assign to `this.state` directly or define a `state = {};` ' + 'class property with the desired state in the %s component.', callerName, componentName);
    didWarnStateUpdateForUnmountedComponent[warningKey] = true;
  }
}

/**
 * This is the abstract API for an update queue.
 */
var ReactNoopUpdateQueue = {
  /**
   * Checks whether or not this composite component is mounted.
   * @param {ReactClass} publicInstance The instance we want to test.
   * @return {boolean} True if mounted, false otherwise.
   * @protected
   * @final
   */
  isMounted: function (publicInstance) {
    return false;
  },

  /**
   * Forces an update. This should only be invoked when it is known with
   * certainty that we are **not** in a DOM transaction.
   *
   * You may want to call this when you know that some deeper aspect of the
   * component's state has changed but `setState` was not called.
   *
   * This will not invoke `shouldComponentUpdate`, but it will invoke
   * `componentWillUpdate` and `componentDidUpdate`.
   *
   * @param {ReactClass} publicInstance The instance that should rerender.
   * @param {?function} callback Called after component is updated.
   * @param {?string} callerName name of the calling function in the public API.
   * @internal
   */
  enqueueForceUpdate: function (publicInstance, callback, callerName) {
    warnNoop(publicInstance, 'forceUpdate');
  },

  /**
   * Replaces all of the state. Always use this or `setState` to mutate state.
   * You should treat `this.state` as immutable.
   *
   * There is no guarantee that `this.state` will be immediately updated, so
   * accessing `this.state` after calling this method may return the old value.
   *
   * @param {ReactClass} publicInstance The instance that should rerender.
   * @param {object} completeState Next state.
   * @param {?function} callback Called after component is updated.
   * @param {?string} callerName name of the calling function in the public API.
   * @internal
   */
  enqueueReplaceState: function (publicInstance, completeState, callback, callerName) {
    warnNoop(publicInstance, 'replaceState');
  },

  /**
   * Sets a subset of the state. This only exists because _pendingState is
   * internal. This provides a merging strategy that is not available to deep
   * properties which is confusing. TODO: Expose pendingState or don't use it
   * during the merge.
   *
   * @param {ReactClass} publicInstance The instance that should rerender.
   * @param {object} partialState Next partial state to be merged with state.
   * @param {?function} callback Called after component is updated.
   * @param {?string} Name of the calling function in the public API.
   * @internal
   */
  enqueueSetState: function (publicInstance, partialState, callback, callerName) {
    warnNoop(publicInstance, 'setState');
  }
};

var emptyObject = {};
{
  Object.freeze(emptyObject);
}

/**
 * Base class helpers for the updating state of a component.
 */
function Component(props, context, updater) {
  this.props = props;
  this.context = context;
  // If a component has string refs, we will assign a different object later.
  this.refs = emptyObject;
  // We initialize the default updater but the real one gets injected by the
  // renderer.
  this.updater = updater || ReactNoopUpdateQueue;
}

Component.prototype.isReactComponent = {};

/**
 * Sets a subset of the state. Always use this to mutate
 * state. You should treat `this.state` as immutable.
 *
 * There is no guarantee that `this.state` will be immediately updated, so
 * accessing `this.state` after calling this method may return the old value.
 *
 * There is no guarantee that calls to `setState` will run synchronously,
 * as they may eventually be batched together.  You can provide an optional
 * callback that will be executed when the call to setState is actually
 * completed.
 *
 * When a function is provided to setState, it will be called at some point in
 * the future (not synchronously). It will be called with the up to date
 * component arguments (state, props, context). These values can be different
 * from this.* because your function may be called after receiveProps but before
 * shouldComponentUpdate, and this new state, props, and context will not yet be
 * assigned to this.
 *
 * @param {object|function} partialState Next partial state or function to
 *        produce next partial state to be merged with current state.
 * @param {?function} callback Called after state is updated.
 * @final
 * @protected
 */
Component.prototype.setState = function (partialState, callback) {
  (function () {
    if (!(typeof partialState === 'object' || typeof partialState === 'function' || partialState == null)) {
      {
        throw ReactError(Error('setState(...): takes an object of state variables to update or a function which returns an object of state variables.'));
      }
    }
  })();
  this.updater.enqueueSetState(this, partialState, callback, 'setState');
};

/**
 * Forces an update. This should only be invoked when it is known with
 * certainty that we are **not** in a DOM transaction.
 *
 * You may want to call this when you know that some deeper aspect of the
 * component's state has changed but `setState` was not called.
 *
 * This will not invoke `shouldComponentUpdate`, but it will invoke
 * `componentWillUpdate` and `componentDidUpdate`.
 *
 * @param {?function} callback Called after update is complete.
 * @final
 * @protected
 */
Component.prototype.forceUpdate = function (callback) {
  this.updater.enqueueForceUpdate(this, callback, 'forceUpdate');
};

/**
 * Deprecated APIs. These APIs used to exist on classic React classes but since
 * we would like to deprecate them, we're not going to move them over to this
 * modern base class. Instead, we define a getter that warns if it's accessed.
 */
{
  var deprecatedAPIs = {
    isMounted: ['isMounted', 'Instead, make sure to clean up subscriptions and pending requests in ' + 'componentWillUnmount to prevent memory leaks.'],
    replaceState: ['replaceState', 'Refactor your code to use setState instead (see ' + 'https://github.com/facebook/react/issues/3236).']
  };
  var defineDeprecationWarning = function (methodName, info) {
    Object.defineProperty(Component.prototype, methodName, {
      get: function () {
        lowPriorityWarning$1(false, '%s(...) is deprecated in plain JavaScript React classes. %s', info[0], info[1]);
        return undefined;
      }
    });
  };
  for (var fnName in deprecatedAPIs) {
    if (deprecatedAPIs.hasOwnProperty(fnName)) {
      defineDeprecationWarning(fnName, deprecatedAPIs[fnName]);
    }
  }
}

function ComponentDummy() {}
ComponentDummy.prototype = Component.prototype;

/**
 * Convenience component with default shallow equality check for sCU.
 */
function PureComponent(props, context, updater) {
  this.props = props;
  this.context = context;
  // If a component has string refs, we will assign a different object later.
  this.refs = emptyObject;
  this.updater = updater || ReactNoopUpdateQueue;
}

var pureComponentPrototype = PureComponent.prototype = new ComponentDummy();
pureComponentPrototype.constructor = PureComponent;
// Avoid an extra prototype jump for these methods.
_assign(pureComponentPrototype, Component.prototype);
pureComponentPrototype.isPureReactComponent = true;

// an immutable object with a single mutable value
function createRef() {
  var refObject = {
    current: null
  };
  {
    Object.seal(refObject);
  }
  return refObject;
}

/**
 * Keeps track of the current dispatcher.
 */
var ReactCurrentDispatcher = {
  /**
   * @internal
   * @type {ReactComponent}
   */
  current: null
};

/**
 * Keeps track of the current batch's configuration such as how long an update
 * should suspend for if it needs to.
 */
var ReactCurrentBatchConfig = {
  suspense: null
};

/**
 * Keeps track of the current owner.
 *
 * The current owner is the component who should own any components that are
 * currently being constructed.
 */
var ReactCurrentOwner = {
  /**
   * @internal
   * @type {ReactComponent}
   */
  current: null
};

var BEFORE_SLASH_RE = /^(.*)[\\\/]/;

var describeComponentFrame = function (name, source, ownerName) {
  var sourceInfo = '';
  if (source) {
    var path = source.fileName;
    var fileName = path.replace(BEFORE_SLASH_RE, '');
    {
      // In DEV, include code for a common special case:
      // prefer "folder/index.js" instead of just "index.js".
      if (/^index\./.test(fileName)) {
        var match = path.match(BEFORE_SLASH_RE);
        if (match) {
          var pathBeforeSlash = match[1];
          if (pathBeforeSlash) {
            var folderName = pathBeforeSlash.replace(BEFORE_SLASH_RE, '');
            fileName = folderName + '/' + fileName;
          }
        }
      }
    }
    sourceInfo = ' (at ' + fileName + ':' + source.lineNumber + ')';
  } else if (ownerName) {
    sourceInfo = ' (created by ' + ownerName + ')';
  }
  return '\n    in ' + (name || 'Unknown') + sourceInfo;
};

var Resolved = 1;


function refineResolvedLazyComponent(lazyComponent) {
  return lazyComponent._status === Resolved ? lazyComponent._result : null;
}

function getWrappedName(outerType, innerType, wrapperName) {
  var functionName = innerType.displayName || innerType.name || '';
  return outerType.displayName || (functionName !== '' ? wrapperName + '(' + functionName + ')' : wrapperName);
}

function getComponentName(type) {
  if (type == null) {
    // Host root, text node or just invalid type.
    return null;
  }
  {
    if (typeof type.tag === 'number') {
      warningWithoutStack$1(false, 'Received an unexpected object in getComponentName(). ' + 'This is likely a bug in React. Please file an issue.');
    }
  }
  if (typeof type === 'function') {
    return type.displayName || type.name || null;
  }
  if (typeof type === 'string') {
    return type;
  }
  switch (type) {
    case REACT_FRAGMENT_TYPE:
      return 'Fragment';
    case REACT_PORTAL_TYPE:
      return 'Portal';
    case REACT_PROFILER_TYPE:
      return 'Profiler';
    case REACT_STRICT_MODE_TYPE:
      return 'StrictMode';
    case REACT_SUSPENSE_TYPE:
      return 'Suspense';
    case REACT_SUSPENSE_LIST_TYPE:
      return 'SuspenseList';
  }
  if (typeof type === 'object') {
    switch (type.$$typeof) {
      case REACT_CONTEXT_TYPE:
        return 'Context.Consumer';
      case REACT_PROVIDER_TYPE:
        return 'Context.Provider';
      case REACT_FORWARD_REF_TYPE:
        return getWrappedName(type, type.render, 'ForwardRef');
      case REACT_MEMO_TYPE:
        return getComponentName(type.type);
      case REACT_LAZY_TYPE:
        {
          var thenable = type;
          var resolvedThenable = refineResolvedLazyComponent(thenable);
          if (resolvedThenable) {
            return getComponentName(resolvedThenable);
          }
          break;
        }
    }
  }
  return null;
}

var ReactDebugCurrentFrame = {};

var currentlyValidatingElement = null;

function setCurrentlyValidatingElement(element) {
  {
    currentlyValidatingElement = element;
  }
}

{
  // Stack implementation injected by the current renderer.
  ReactDebugCurrentFrame.getCurrentStack = null;

  ReactDebugCurrentFrame.getStackAddendum = function () {
    var stack = '';

    // Add an extra top frame while an element is being validated
    if (currentlyValidatingElement) {
      var name = getComponentName(currentlyValidatingElement.type);
      var owner = currentlyValidatingElement._owner;
      stack += describeComponentFrame(name, currentlyValidatingElement._source, owner && getComponentName(owner.type));
    }

    // Delegate to the injected renderer-specific implementation
    var impl = ReactDebugCurrentFrame.getCurrentStack;
    if (impl) {
      stack += impl() || '';
    }

    return stack;
  };
}

/**
 * Used by act() to track whether you're inside an act() scope.
 */

var IsSomeRendererActing = {
  current: false
};

var ReactSharedInternals = {
  ReactCurrentDispatcher: ReactCurrentDispatcher,
  ReactCurrentBatchConfig: ReactCurrentBatchConfig,
  ReactCurrentOwner: ReactCurrentOwner,
  IsSomeRendererActing: IsSomeRendererActing,
  // Used by renderers to avoid bundling object-assign twice in UMD bundles:
  assign: _assign
};

{
  _assign(ReactSharedInternals, {
    // These should not be included in production.
    ReactDebugCurrentFrame: ReactDebugCurrentFrame,
    // Shim for React DOM 16.0.0 which still destructured (but not used) this.
    // TODO: remove in React 17.0.
    ReactComponentTreeHook: {}
  });
}

/**
 * Similar to invariant but only logs a warning if the condition is not met.
 * This can be used to log issues in development environments in critical
 * paths. Removing the logging code for production environments will keep the
 * same logic and follow the same code paths.
 */

var warning = warningWithoutStack$1;

{
  warning = function (condition, format) {
    if (condition) {
      return;
    }
    var ReactDebugCurrentFrame = ReactSharedInternals.ReactDebugCurrentFrame;
    var stack = ReactDebugCurrentFrame.getStackAddendum();
    // eslint-disable-next-line react-internal/warning-and-invariant-args

    for (var _len = arguments.length, args = Array(_len > 2 ? _len - 2 : 0), _key = 2; _key < _len; _key++) {
      args[_key - 2] = arguments[_key];
    }

    warningWithoutStack$1.apply(undefined, [false, format + '%s'].concat(args, [stack]));
  };
}

var warning$1 = warning;

var hasOwnProperty = Object.prototype.hasOwnProperty;

var RESERVED_PROPS = {
  key: true,
  ref: true,
  __self: true,
  __source: true
};

var specialPropKeyWarningShown = void 0;
var specialPropRefWarningShown = void 0;

function hasValidRef(config) {
  {
    if (hasOwnProperty.call(config, 'ref')) {
      var getter = Object.getOwnPropertyDescriptor(config, 'ref').get;
      if (getter && getter.isReactWarning) {
        return false;
      }
    }
  }
  return config.ref !== undefined;
}

function hasValidKey(config) {
  {
    if (hasOwnProperty.call(config, 'key')) {
      var getter = Object.getOwnPropertyDescriptor(config, 'key').get;
      if (getter && getter.isReactWarning) {
        return false;
      }
    }
  }
  return config.key !== undefined;
}

function defineKeyPropWarningGetter(props, displayName) {
  var warnAboutAccessingKey = function () {
    if (!specialPropKeyWarningShown) {
      specialPropKeyWarningShown = true;
      warningWithoutStack$1(false, '%s: `key` is not a prop. Trying to access it will result ' + 'in `undefined` being returned. If you need to access the same ' + 'value within the child component, you should pass it as a different ' + 'prop. (https://fb.me/react-special-props)', displayName);
    }
  };
  warnAboutAccessingKey.isReactWarning = true;
  Object.defineProperty(props, 'key', {
    get: warnAboutAccessingKey,
    configurable: true
  });
}

function defineRefPropWarningGetter(props, displayName) {
  var warnAboutAccessingRef = function () {
    if (!specialPropRefWarningShown) {
      specialPropRefWarningShown = true;
      warningWithoutStack$1(false, '%s: `ref` is not a prop. Trying to access it will result ' + 'in `undefined` being returned. If you need to access the same ' + 'value within the child component, you should pass it as a different ' + 'prop. (https://fb.me/react-special-props)', displayName);
    }
  };
  warnAboutAccessingRef.isReactWarning = true;
  Object.defineProperty(props, 'ref', {
    get: warnAboutAccessingRef,
    configurable: true
  });
}

/**
 * Factory method to create a new React element. This no longer adheres to
 * the class pattern, so do not use new to call it. Also, no instanceof check
 * will work. Instead test $$typeof field against Symbol.for('react.element') to check
 * if something is a React Element.
 *
 * @param {*} type
 * @param {*} props
 * @param {*} key
 * @param {string|object} ref
 * @param {*} owner
 * @param {*} self A *temporary* helper to detect places where `this` is
 * different from the `owner` when React.createElement is called, so that we
 * can warn. We want to get rid of owner and replace string `ref`s with arrow
 * functions, and as long as `this` and owner are the same, there will be no
 * change in behavior.
 * @param {*} source An annotation object (added by a transpiler or otherwise)
 * indicating filename, line number, and/or other information.
 * @internal
 */
var ReactElement = function (type, key, ref, self, source, owner, props) {
  var element = {
    // This tag allows us to uniquely identify this as a React Element
    $$typeof: REACT_ELEMENT_TYPE,

    // Built-in properties that belong on the element
    type: type,
    key: key,
    ref: ref,
    props: props,

    // Record the component responsible for creating this element.
    _owner: owner
  };

  {
    // The validation flag is currently mutative. We put it on
    // an external backing store so that we can freeze the whole object.
    // This can be replaced with a WeakMap once they are implemented in
    // commonly used development environments.
    element._store = {};

    // To make comparing ReactElements easier for testing purposes, we make
    // the validation flag non-enumerable (where possible, which should
    // include every environment we run tests in), so the test framework
    // ignores it.
    Object.defineProperty(element._store, 'validated', {
      configurable: false,
      enumerable: false,
      writable: true,
      value: false
    });
    // self and source are DEV only properties.
    Object.defineProperty(element, '_self', {
      configurable: false,
      enumerable: false,
      writable: false,
      value: self
    });
    // Two elements created in two different places should be considered
    // equal for testing purposes and therefore we hide it from enumeration.
    Object.defineProperty(element, '_source', {
      configurable: false,
      enumerable: false,
      writable: false,
      value: source
    });
    if (Object.freeze) {
      Object.freeze(element.props);
      Object.freeze(element);
    }
  }

  return element;
};

/**
 * https://github.com/reactjs/rfcs/pull/107
 * @param {*} type
 * @param {object} props
 * @param {string} key
 */


/**
 * https://github.com/reactjs/rfcs/pull/107
 * @param {*} type
 * @param {object} props
 * @param {string} key
 */
function jsxDEV(type, config, maybeKey, source, self) {
  var propName = void 0;

  // Reserved names are extracted
  var props = {};

  var key = null;
  var ref = null;

  if (hasValidRef(config)) {
    ref = config.ref;
  }

  if (hasValidKey(config)) {
    key = '' + config.key;
  }

  // Remaining properties are added to a new props object
  for (propName in config) {
    if (hasOwnProperty.call(config, propName) && !RESERVED_PROPS.hasOwnProperty(propName)) {
      props[propName] = config[propName];
    }
  }

  // intentionally not checking if key was set above
  // this key is higher priority as it's static
  if (maybeKey !== undefined) {
    key = '' + maybeKey;
  }

  // Resolve default props
  if (type && type.defaultProps) {
    var defaultProps = type.defaultProps;
    for (propName in defaultProps) {
      if (props[propName] === undefined) {
        props[propName] = defaultProps[propName];
      }
    }
  }

  if (key || ref) {
    var displayName = typeof type === 'function' ? type.displayName || type.name || 'Unknown' : type;
    if (key) {
      defineKeyPropWarningGetter(props, displayName);
    }
    if (ref) {
      defineRefPropWarningGetter(props, displayName);
    }
  }

  return ReactElement(type, key, ref, self, source, ReactCurrentOwner.current, props);
}

/**
 * Create and return a new ReactElement of the given type.
 * See https://reactjs.org/docs/react-api.html#createelement
 */
function createElement(type, config, children) {
  var propName = void 0;

  // Reserved names are extracted
  var props = {};

  var key = null;
  var ref = null;
  var self = null;
  var source = null;

  if (config != null) {
    if (hasValidRef(config)) {
      ref = config.ref;
    }
    if (hasValidKey(config)) {
      key = '' + config.key;
    }

    self = config.__self === undefined ? null : config.__self;
    source = config.__source === undefined ? null : config.__source;
    // Remaining properties are added to a new props object
    for (propName in config) {
      if (hasOwnProperty.call(config, propName) && !RESERVED_PROPS.hasOwnProperty(propName)) {
        props[propName] = config[propName];
      }
    }
  }

  // Children can be more than one argument, and those are transferred onto
  // the newly allocated props object.
  var childrenLength = arguments.length - 2;
  if (childrenLength === 1) {
    props.children = children;
  } else if (childrenLength > 1) {
    var childArray = Array(childrenLength);
    for (var i = 0; i < childrenLength; i++) {
      childArray[i] = arguments[i + 2];
    }
    {
      if (Object.freeze) {
        Object.freeze(childArray);
      }
    }
    props.children = childArray;
  }

  // Resolve default props
  if (type && type.defaultProps) {
    var defaultProps = type.defaultProps;
    for (propName in defaultProps) {
      if (props[propName] === undefined) {
        props[propName] = defaultProps[propName];
      }
    }
  }
  {
    if (key || ref) {
      var displayName = typeof type === 'function' ? type.displayName || type.name || 'Unknown' : type;
      if (key) {
        defineKeyPropWarningGetter(props, displayName);
      }
      if (ref) {
        defineRefPropWarningGetter(props, displayName);
      }
    }
  }
  return ReactElement(type, key, ref, self, source, ReactCurrentOwner.current, props);
}

/**
 * Return a function that produces ReactElements of a given type.
 * See https://reactjs.org/docs/react-api.html#createfactory
 */


function cloneAndReplaceKey(oldElement, newKey) {
  var newElement = ReactElement(oldElement.type, newKey, oldElement.ref, oldElement._self, oldElement._source, oldElement._owner, oldElement.props);

  return newElement;
}

/**
 * Clone and return a new ReactElement using element as the starting point.
 * See https://reactjs.org/docs/react-api.html#cloneelement
 */
function cloneElement(element, config, children) {
  (function () {
    if (!!(element === null || element === undefined)) {
      {
        throw ReactError(Error('React.cloneElement(...): The argument must be a React element, but you passed ' + element + '.'));
      }
    }
  })();

  var propName = void 0;

  // Original props are copied
  var props = _assign({}, element.props);

  // Reserved names are extracted
  var key = element.key;
  var ref = element.ref;
  // Self is preserved since the owner is preserved.
  var self = element._self;
  // Source is preserved since cloneElement is unlikely to be targeted by a
  // transpiler, and the original source is probably a better indicator of the
  // true owner.
  var source = element._source;

  // Owner will be preserved, unless ref is overridden
  var owner = element._owner;

  if (config != null) {
    if (hasValidRef(config)) {
      // Silently steal the ref from the parent.
      ref = config.ref;
      owner = ReactCurrentOwner.current;
    }
    if (hasValidKey(config)) {
      key = '' + config.key;
    }

    // Remaining properties override existing props
    var defaultProps = void 0;
    if (element.type && element.type.defaultProps) {
      defaultProps = element.type.defaultProps;
    }
    for (propName in config) {
      if (hasOwnProperty.call(config, propName) && !RESERVED_PROPS.hasOwnProperty(propName)) {
        if (config[propName] === undefined && defaultProps !== undefined) {
          // Resolve default props
          props[propName] = defaultProps[propName];
        } else {
          props[propName] = config[propName];
        }
      }
    }
  }

  // Children can be more than one argument, and those are transferred onto
  // the newly allocated props object.
  var childrenLength = arguments.length - 2;
  if (childrenLength === 1) {
    props.children = children;
  } else if (childrenLength > 1) {
    var childArray = Array(childrenLength);
    for (var i = 0; i < childrenLength; i++) {
      childArray[i] = arguments[i + 2];
    }
    props.children = childArray;
  }

  return ReactElement(element.type, key, ref, self, source, owner, props);
}

/**
 * Verifies the object is a ReactElement.
 * See https://reactjs.org/docs/react-api.html#isvalidelement
 * @param {?object} object
 * @return {boolean} True if `object` is a ReactElement.
 * @final
 */
function isValidElement(object) {
  return typeof object === 'object' && object !== null && object.$$typeof === REACT_ELEMENT_TYPE;
}

var SEPARATOR = '.';
var SUBSEPARATOR = ':';

/**
 * Escape and wrap key so it is safe to use as a reactid
 *
 * @param {string} key to be escaped.
 * @return {string} the escaped key.
 */
function escape(key) {
  var escapeRegex = /[=:]/g;
  var escaperLookup = {
    '=': '=0',
    ':': '=2'
  };
  var escapedString = ('' + key).replace(escapeRegex, function (match) {
    return escaperLookup[match];
  });

  return '$' + escapedString;
}

/**
 * TODO: Test that a single child and an array with one item have the same key
 * pattern.
 */

var didWarnAboutMaps = false;

var userProvidedKeyEscapeRegex = /\/+/g;
function escapeUserProvidedKey(text) {
  return ('' + text).replace(userProvidedKeyEscapeRegex, '$&/');
}

var POOL_SIZE = 10;
var traverseContextPool = [];
function getPooledTraverseContext(mapResult, keyPrefix, mapFunction, mapContext) {
  if (traverseContextPool.length) {
    var traverseContext = traverseContextPool.pop();
    traverseContext.result = mapResult;
    traverseContext.keyPrefix = keyPrefix;
    traverseContext.func = mapFunction;
    traverseContext.context = mapContext;
    traverseContext.count = 0;
    return traverseContext;
  } else {
    return {
      result: mapResult,
      keyPrefix: keyPrefix,
      func: mapFunction,
      context: mapContext,
      count: 0
    };
  }
}

function releaseTraverseContext(traverseContext) {
  traverseContext.result = null;
  traverseContext.keyPrefix = null;
  traverseContext.func = null;
  traverseContext.context = null;
  traverseContext.count = 0;
  if (traverseContextPool.length < POOL_SIZE) {
    traverseContextPool.push(traverseContext);
  }
}

/**
 * @param {?*} children Children tree container.
 * @param {!string} nameSoFar Name of the key path so far.
 * @param {!function} callback Callback to invoke with each child found.
 * @param {?*} traverseContext Used to pass information throughout the traversal
 * process.
 * @return {!number} The number of children in this subtree.
 */
function traverseAllChildrenImpl(children, nameSoFar, callback, traverseContext) {
  var type = typeof children;

  if (type === 'undefined' || type === 'boolean') {
    // All of the above are perceived as null.
    children = null;
  }

  var invokeCallback = false;

  if (children === null) {
    invokeCallback = true;
  } else {
    switch (type) {
      case 'string':
      case 'number':
        invokeCallback = true;
        break;
      case 'object':
        switch (children.$$typeof) {
          case REACT_ELEMENT_TYPE:
          case REACT_PORTAL_TYPE:
            invokeCallback = true;
        }
    }
  }

  if (invokeCallback) {
    callback(traverseContext, children,
    // If it's the only child, treat the name as if it was wrapped in an array
    // so that it's consistent if the number of children grows.
    nameSoFar === '' ? SEPARATOR + getComponentKey(children, 0) : nameSoFar);
    return 1;
  }

  var child = void 0;
  var nextName = void 0;
  var subtreeCount = 0; // Count of children found in the current subtree.
  var nextNamePrefix = nameSoFar === '' ? SEPARATOR : nameSoFar + SUBSEPARATOR;

  if (Array.isArray(children)) {
    for (var i = 0; i < children.length; i++) {
      child = children[i];
      nextName = nextNamePrefix + getComponentKey(child, i);
      subtreeCount += traverseAllChildrenImpl(child, nextName, callback, traverseContext);
    }
  } else {
    var iteratorFn = getIteratorFn(children);
    if (typeof iteratorFn === 'function') {
      {
        // Warn about using Maps as children
        if (iteratorFn === children.entries) {
          !didWarnAboutMaps ? warning$1(false, 'Using Maps as children is unsupported and will likely yield ' + 'unexpected results. Convert it to a sequence/iterable of keyed ' + 'ReactElements instead.') : void 0;
          didWarnAboutMaps = true;
        }
      }

      var iterator = iteratorFn.call(children);
      var step = void 0;
      var ii = 0;
      while (!(step = iterator.next()).done) {
        child = step.value;
        nextName = nextNamePrefix + getComponentKey(child, ii++);
        subtreeCount += traverseAllChildrenImpl(child, nextName, callback, traverseContext);
      }
    } else if (type === 'object') {
      var addendum = '';
      {
        addendum = ' If you meant to render a collection of children, use an array ' + 'instead.' + ReactDebugCurrentFrame.getStackAddendum();
      }
      var childrenString = '' + children;
      (function () {
        {
          {
            throw ReactError(Error('Objects are not valid as a React child (found: ' + (childrenString === '[object Object]' ? 'object with keys {' + Object.keys(children).join(', ') + '}' : childrenString) + ').' + addendum));
          }
        }
      })();
    }
  }

  return subtreeCount;
}

/**
 * Traverses children that are typically specified as `props.children`, but
 * might also be specified through attributes:
 *
 * - `traverseAllChildren(this.props.children, ...)`
 * - `traverseAllChildren(this.props.leftPanelChildren, ...)`
 *
 * The `traverseContext` is an optional argument that is passed through the
 * entire traversal. It can be used to store accumulations or anything else that
 * the callback might find relevant.
 *
 * @param {?*} children Children tree object.
 * @param {!function} callback To invoke upon traversing each child.
 * @param {?*} traverseContext Context for traversal.
 * @return {!number} The number of children in this subtree.
 */
function traverseAllChildren(children, callback, traverseContext) {
  if (children == null) {
    return 0;
  }

  return traverseAllChildrenImpl(children, '', callback, traverseContext);
}

/**
 * Generate a key string that identifies a component within a set.
 *
 * @param {*} component A component that could contain a manual key.
 * @param {number} index Index that is used if a manual key is not provided.
 * @return {string}
 */
function getComponentKey(component, index) {
  // Do some typechecking here since we call this blindly. We want to ensure
  // that we don't block potential future ES APIs.
  if (typeof component === 'object' && component !== null && component.key != null) {
    // Explicit key
    return escape(component.key);
  }
  // Implicit key determined by the index in the set
  return index.toString(36);
}

function forEachSingleChild(bookKeeping, child, name) {
  var func = bookKeeping.func,
      context = bookKeeping.context;

  func.call(context, child, bookKeeping.count++);
}

/**
 * Iterates through children that are typically specified as `props.children`.
 *
 * See https://reactjs.org/docs/react-api.html#reactchildrenforeach
 *
 * The provided forEachFunc(child, index) will be called for each
 * leaf child.
 *
 * @param {?*} children Children tree container.
 * @param {function(*, int)} forEachFunc
 * @param {*} forEachContext Context for forEachContext.
 */
function forEachChildren(children, forEachFunc, forEachContext) {
  if (children == null) {
    return children;
  }
  var traverseContext = getPooledTraverseContext(null, null, forEachFunc, forEachContext);
  traverseAllChildren(children, forEachSingleChild, traverseContext);
  releaseTraverseContext(traverseContext);
}

function mapSingleChildIntoContext(bookKeeping, child, childKey) {
  var result = bookKeeping.result,
      keyPrefix = bookKeeping.keyPrefix,
      func = bookKeeping.func,
      context = bookKeeping.context;


  var mappedChild = func.call(context, child, bookKeeping.count++);
  if (Array.isArray(mappedChild)) {
    mapIntoWithKeyPrefixInternal(mappedChild, result, childKey, function (c) {
      return c;
    });
  } else if (mappedChild != null) {
    if (isValidElement(mappedChild)) {
      mappedChild = cloneAndReplaceKey(mappedChild,
      // Keep both the (mapped) and old keys if they differ, just as
      // traverseAllChildren used to do for objects as children
      keyPrefix + (mappedChild.key && (!child || child.key !== mappedChild.key) ? escapeUserProvidedKey(mappedChild.key) + '/' : '') + childKey);
    }
    result.push(mappedChild);
  }
}

function mapIntoWithKeyPrefixInternal(children, array, prefix, func, context) {
  var escapedPrefix = '';
  if (prefix != null) {
    escapedPrefix = escapeUserProvidedKey(prefix) + '/';
  }
  var traverseContext = getPooledTraverseContext(array, escapedPrefix, func, context);
  traverseAllChildren(children, mapSingleChildIntoContext, traverseContext);
  releaseTraverseContext(traverseContext);
}

/**
 * Maps children that are typically specified as `props.children`.
 *
 * See https://reactjs.org/docs/react-api.html#reactchildrenmap
 *
 * The provided mapFunction(child, key, index) will be called for each
 * leaf child.
 *
 * @param {?*} children Children tree container.
 * @param {function(*, int)} func The map function.
 * @param {*} context Context for mapFunction.
 * @return {object} Object containing the ordered map of results.
 */
function mapChildren(children, func, context) {
  if (children == null) {
    return children;
  }
  var result = [];
  mapIntoWithKeyPrefixInternal(children, result, null, func, context);
  return result;
}

/**
 * Count the number of children that are typically specified as
 * `props.children`.
 *
 * See https://reactjs.org/docs/react-api.html#reactchildrencount
 *
 * @param {?*} children Children tree container.
 * @return {number} The number of children.
 */
function countChildren(children) {
  return traverseAllChildren(children, function () {
    return null;
  }, null);
}

/**
 * Flatten a children object (typically specified as `props.children`) and
 * return an array with appropriately re-keyed children.
 *
 * See https://reactjs.org/docs/react-api.html#reactchildrentoarray
 */
function toArray(children) {
  var result = [];
  mapIntoWithKeyPrefixInternal(children, result, null, function (child) {
    return child;
  });
  return result;
}

/**
 * Returns the first child in a collection of children and verifies that there
 * is only one child in the collection.
 *
 * See https://reactjs.org/docs/react-api.html#reactchildrenonly
 *
 * The current implementation of this function assumes that a single child gets
 * passed without a wrapper, but the purpose of this helper function is to
 * abstract away the particular structure of children.
 *
 * @param {?object} children Child collection structure.
 * @return {ReactElement} The first and only `ReactElement` contained in the
 * structure.
 */
function onlyChild(children) {
  (function () {
    if (!isValidElement(children)) {
      {
        throw ReactError(Error('React.Children.only expected to receive a single React element child.'));
      }
    }
  })();
  return children;
}

function createContext(defaultValue, calculateChangedBits) {
  if (calculateChangedBits === undefined) {
    calculateChangedBits = null;
  } else {
    {
      !(calculateChangedBits === null || typeof calculateChangedBits === 'function') ? warningWithoutStack$1(false, 'createContext: Expected the optional second argument to be a ' + 'function. Instead received: %s', calculateChangedBits) : void 0;
    }
  }

  var context = {
    $$typeof: REACT_CONTEXT_TYPE,
    _calculateChangedBits: calculateChangedBits,
    // As a workaround to support multiple concurrent renderers, we categorize
    // some renderers as primary and others as secondary. We only expect
    // there to be two concurrent renderers at most: React Native (primary) and
    // Fabric (secondary); React DOM (primary) and React ART (secondary).
    // Secondary renderers store their context values on separate fields.
    _currentValue: defaultValue,
    _currentValue2: defaultValue,
    // Used to track how many concurrent renderers this context currently
    // supports within in a single renderer. Such as parallel server rendering.
    _threadCount: 0,
    // These are circular
    Provider: null,
    Consumer: null
  };

  context.Provider = {
    $$typeof: REACT_PROVIDER_TYPE,
    _context: context
  };

  var hasWarnedAboutUsingNestedContextConsumers = false;
  var hasWarnedAboutUsingConsumerProvider = false;

  {
    // A separate object, but proxies back to the original context object for
    // backwards compatibility. It has a different $$typeof, so we can properly
    // warn for the incorrect usage of Context as a Consumer.
    var Consumer = {
      $$typeof: REACT_CONTEXT_TYPE,
      _context: context,
      _calculateChangedBits: context._calculateChangedBits
    };
    // $FlowFixMe: Flow complains about not setting a value, which is intentional here
    Object.defineProperties(Consumer, {
      Provider: {
        get: function () {
          if (!hasWarnedAboutUsingConsumerProvider) {
            hasWarnedAboutUsingConsumerProvider = true;
            warning$1(false, 'Rendering <Context.Consumer.Provider> is not supported and will be removed in ' + 'a future major release. Did you mean to render <Context.Provider> instead?');
          }
          return context.Provider;
        },
        set: function (_Provider) {
          context.Provider = _Provider;
        }
      },
      _currentValue: {
        get: function () {
          return context._currentValue;
        },
        set: function (_currentValue) {
          context._currentValue = _currentValue;
        }
      },
      _currentValue2: {
        get: function () {
          return context._currentValue2;
        },
        set: function (_currentValue2) {
          context._currentValue2 = _currentValue2;
        }
      },
      _threadCount: {
        get: function () {
          return context._threadCount;
        },
        set: function (_threadCount) {
          context._threadCount = _threadCount;
        }
      },
      Consumer: {
        get: function () {
          if (!hasWarnedAboutUsingNestedContextConsumers) {
            hasWarnedAboutUsingNestedContextConsumers = true;
            warning$1(false, 'Rendering <Context.Consumer.Consumer> is not supported and will be removed in ' + 'a future major release. Did you mean to render <Context.Consumer> instead?');
          }
          return context.Consumer;
        }
      }
    });
    // $FlowFixMe: Flow complains about missing properties because it doesn't understand defineProperty
    context.Consumer = Consumer;
  }

  {
    context._currentRenderer = null;
    context._currentRenderer2 = null;
  }

  return context;
}

function lazy(ctor) {
  var lazyType = {
    $$typeof: REACT_LAZY_TYPE,
    _ctor: ctor,
    // React uses these fields to store the result.
    _status: -1,
    _result: null
  };

  {
    // In production, this would just set it on the object.
    var defaultProps = void 0;
    var propTypes = void 0;
    Object.defineProperties(lazyType, {
      defaultProps: {
        configurable: true,
        get: function () {
          return defaultProps;
        },
        set: function (newDefaultProps) {
          warning$1(false, 'React.lazy(...): It is not supported to assign `defaultProps` to ' + 'a lazy component import. Either specify them where the component ' + 'is defined, or create a wrapping component around it.');
          defaultProps = newDefaultProps;
          // Match production behavior more closely:
          Object.defineProperty(lazyType, 'defaultProps', {
            enumerable: true
          });
        }
      },
      propTypes: {
        configurable: true,
        get: function () {
          return propTypes;
        },
        set: function (newPropTypes) {
          warning$1(false, 'React.lazy(...): It is not supported to assign `propTypes` to ' + 'a lazy component import. Either specify them where the component ' + 'is defined, or create a wrapping component around it.');
          propTypes = newPropTypes;
          // Match production behavior more closely:
          Object.defineProperty(lazyType, 'propTypes', {
            enumerable: true
          });
        }
      }
    });
  }

  return lazyType;
}

function forwardRef(render) {
  {
    if (render != null && render.$$typeof === REACT_MEMO_TYPE) {
      warningWithoutStack$1(false, 'forwardRef requires a render function but received a `memo` ' + 'component. Instead of forwardRef(memo(...)), use ' + 'memo(forwardRef(...)).');
    } else if (typeof render !== 'function') {
      warningWithoutStack$1(false, 'forwardRef requires a render function but was given %s.', render === null ? 'null' : typeof render);
    } else {
      !(
      // Do not warn for 0 arguments because it could be due to usage of the 'arguments' object
      render.length === 0 || render.length === 2) ? warningWithoutStack$1(false, 'forwardRef render functions accept exactly two parameters: props and ref. %s', render.length === 1 ? 'Did you forget to use the ref parameter?' : 'Any additional parameter will be undefined.') : void 0;
    }

    if (render != null) {
      !(render.defaultProps == null && render.propTypes == null) ? warningWithoutStack$1(false, 'forwardRef render functions do not support propTypes or defaultProps. ' + 'Did you accidentally pass a React component?') : void 0;
    }
  }

  return {
    $$typeof: REACT_FORWARD_REF_TYPE,
    render: render
  };
}

function isValidElementType(type) {
  return typeof type === 'string' || typeof type === 'function' ||
  // Note: its typeof might be other than 'symbol' or 'number' if it's a polyfill.
  type === REACT_FRAGMENT_TYPE || type === REACT_CONCURRENT_MODE_TYPE || type === REACT_PROFILER_TYPE || type === REACT_STRICT_MODE_TYPE || type === REACT_SUSPENSE_TYPE || type === REACT_SUSPENSE_LIST_TYPE || typeof type === 'object' && type !== null && (type.$$typeof === REACT_LAZY_TYPE || type.$$typeof === REACT_MEMO_TYPE || type.$$typeof === REACT_PROVIDER_TYPE || type.$$typeof === REACT_CONTEXT_TYPE || type.$$typeof === REACT_FORWARD_REF_TYPE || type.$$typeof === REACT_FUNDAMENTAL_TYPE || type.$$typeof === REACT_RESPONDER_TYPE);
}

function memo(type, compare) {
  {
    if (!isValidElementType(type)) {
      warningWithoutStack$1(false, 'memo: The first argument must be a component. Instead ' + 'received: %s', type === null ? 'null' : typeof type);
    }
  }
  return {
    $$typeof: REACT_MEMO_TYPE,
    type: type,
    compare: compare === undefined ? null : compare
  };
}

function resolveDispatcher() {
  var dispatcher = ReactCurrentDispatcher.current;
  (function () {
    if (!(dispatcher !== null)) {
      {
        throw ReactError(Error('Invalid hook call. Hooks can only be called inside of the body of a function component. This could happen for one of the following reasons:\n1. You might have mismatching versions of React and the renderer (such as React DOM)\n2. You might be breaking the Rules of Hooks\n3. You might have more than one copy of React in the same app\nSee https://fb.me/react-invalid-hook-call for tips about how to debug and fix this problem.'));
      }
    }
  })();
  return dispatcher;
}

function useContext(Context, unstable_observedBits) {
  var dispatcher = resolveDispatcher();
  {
    !(unstable_observedBits === undefined) ? warning$1(false, 'useContext() second argument is reserved for future ' + 'use in React. Passing it is not supported. ' + 'You passed: %s.%s', unstable_observedBits, typeof unstable_observedBits === 'number' && Array.isArray(arguments[2]) ? '\n\nDid you call array.map(useContext)? ' + 'Calling Hooks inside a loop is not supported. ' + 'Learn more at https://fb.me/rules-of-hooks' : '') : void 0;

    // TODO: add a more generic warning for invalid values.
    if (Context._context !== undefined) {
      var realContext = Context._context;
      // Don't deduplicate because this legitimately causes bugs
      // and nobody should be using this in existing code.
      if (realContext.Consumer === Context) {
        warning$1(false, 'Calling useContext(Context.Consumer) is not supported, may cause bugs, and will be ' + 'removed in a future major release. Did you mean to call useContext(Context) instead?');
      } else if (realContext.Provider === Context) {
        warning$1(false, 'Calling useContext(Context.Provider) is not supported. ' + 'Did you mean to call useContext(Context) instead?');
      }
    }
  }
  return dispatcher.useContext(Context, unstable_observedBits);
}

function useState(initialState) {
  var dispatcher = resolveDispatcher();
  return dispatcher.useState(initialState);
}

function useReducer(reducer, initialArg, init) {
  var dispatcher = resolveDispatcher();
  return dispatcher.useReducer(reducer, initialArg, init);
}

function useRef(initialValue) {
  var dispatcher = resolveDispatcher();
  return dispatcher.useRef(initialValue);
}

function useEffect(create, inputs) {
  var dispatcher = resolveDispatcher();
  return dispatcher.useEffect(create, inputs);
}

function useLayoutEffect(create, inputs) {
  var dispatcher = resolveDispatcher();
  return dispatcher.useLayoutEffect(create, inputs);
}

function useCallback(callback, inputs) {
  var dispatcher = resolveDispatcher();
  return dispatcher.useCallback(callback, inputs);
}

function useMemo(create, inputs) {
  var dispatcher = resolveDispatcher();
  return dispatcher.useMemo(create, inputs);
}

function useImperativeHandle(ref, create, inputs) {
  var dispatcher = resolveDispatcher();
  return dispatcher.useImperativeHandle(ref, create, inputs);
}

function useDebugValue(value, formatterFn) {
  {
    var dispatcher = resolveDispatcher();
    return dispatcher.useDebugValue(value, formatterFn);
  }
}

var emptyObject$1 = {};

function useResponder(responder, listenerProps) {
  var dispatcher = resolveDispatcher();
  {
    if (responder == null || responder.$$typeof !== REACT_RESPONDER_TYPE) {
      warning$1(false, 'useResponder: invalid first argument. Expected an event responder, but instead got %s', responder);
      return;
    }
  }
  return dispatcher.useResponder(responder, listenerProps || emptyObject$1);
}

// Within the scope of the callback, mark all updates as being allowed to suspend.
function withSuspenseConfig(scope, config) {
  var previousConfig = ReactCurrentBatchConfig.suspense;
  ReactCurrentBatchConfig.suspense = config === undefined ? null : config;
  try {
    scope();
  } finally {
    ReactCurrentBatchConfig.suspense = previousConfig;
  }
}

/**
 * ReactElementValidator provides a wrapper around a element factory
 * which validates the props passed to the element. This is intended to be
 * used only in DEV and could be replaced by a static type checker for languages
 * that support it.
 */

var propTypesMisspellWarningShown = void 0;

{
  propTypesMisspellWarningShown = false;
}

function getDeclarationErrorAddendum() {
  if (ReactCurrentOwner.current) {
    var name = getComponentName(ReactCurrentOwner.current.type);
    if (name) {
      return '\n\nCheck the render method of `' + name + '`.';
    }
  }
  return '';
}

function getSourceInfoErrorAddendum(source) {
  if (source !== undefined) {
    var fileName = source.fileName.replace(/^.*[\\\/]/, '');
    var lineNumber = source.lineNumber;
    return '\n\nCheck your code at ' + fileName + ':' + lineNumber + '.';
  }
  return '';
}

function getSourceInfoErrorAddendumForProps(elementProps) {
  if (elementProps !== null && elementProps !== undefined) {
    return getSourceInfoErrorAddendum(elementProps.__source);
  }
  return '';
}

/**
 * Warn if there's no key explicitly set on dynamic arrays of children or
 * object keys are not valid. This allows us to keep track of children between
 * updates.
 */
var ownerHasKeyUseWarning = {};

function getCurrentComponentErrorInfo(parentType) {
  var info = getDeclarationErrorAddendum();

  if (!info) {
    var parentName = typeof parentType === 'string' ? parentType : parentType.displayName || parentType.name;
    if (parentName) {
      info = '\n\nCheck the top-level render call using <' + parentName + '>.';
    }
  }
  return info;
}

/**
 * Warn if the element doesn't have an explicit key assigned to it.
 * This element is in an array. The array could grow and shrink or be
 * reordered. All children that haven't already been validated are required to
 * have a "key" property assigned to it. Error statuses are cached so a warning
 * will only be shown once.
 *
 * @internal
 * @param {ReactElement} element Element that requires a key.
 * @param {*} parentType element's parent's type.
 */
function validateExplicitKey(element, parentType) {
  if (!element._store || element._store.validated || element.key != null) {
    return;
  }
  element._store.validated = true;

  var currentComponentErrorInfo = getCurrentComponentErrorInfo(parentType);
  if (ownerHasKeyUseWarning[currentComponentErrorInfo]) {
    return;
  }
  ownerHasKeyUseWarning[currentComponentErrorInfo] = true;

  // Usually the current owner is the offender, but if it accepts children as a
  // property, it may be the creator of the child that's responsible for
  // assigning it a key.
  var childOwner = '';
  if (element && element._owner && element._owner !== ReactCurrentOwner.current) {
    // Give the component that originally created this child.
    childOwner = ' It was passed a child from ' + getComponentName(element._owner.type) + '.';
  }

  setCurrentlyValidatingElement(element);
  {
    warning$1(false, 'Each child in a list should have a unique "key" prop.' + '%s%s See https://fb.me/react-warning-keys for more information.', currentComponentErrorInfo, childOwner);
  }
  setCurrentlyValidatingElement(null);
}

/**
 * Ensure that every element either is passed in a static location, in an
 * array with an explicit keys property defined, or in an object literal
 * with valid key property.
 *
 * @internal
 * @param {ReactNode} node Statically passed child of any type.
 * @param {*} parentType node's parent's type.
 */
function validateChildKeys(node, parentType) {
  if (typeof node !== 'object') {
    return;
  }
  if (Array.isArray(node)) {
    for (var i = 0; i < node.length; i++) {
      var child = node[i];
      if (isValidElement(child)) {
        validateExplicitKey(child, parentType);
      }
    }
  } else if (isValidElement(node)) {
    // This element was passed in a valid location.
    if (node._store) {
      node._store.validated = true;
    }
  } else if (node) {
    var iteratorFn = getIteratorFn(node);
    if (typeof iteratorFn === 'function') {
      // Entry iterators used to provide implicit keys,
      // but now we print a separate warning for them later.
      if (iteratorFn !== node.entries) {
        var iterator = iteratorFn.call(node);
        var step = void 0;
        while (!(step = iterator.next()).done) {
          if (isValidElement(step.value)) {
            validateExplicitKey(step.value, parentType);
          }
        }
      }
    }
  }
}

/**
 * Given an element, validate that its props follow the propTypes definition,
 * provided by the type.
 *
 * @param {ReactElement} element
 */
function validatePropTypes(element) {
  var type = element.type;
  if (type === null || type === undefined || typeof type === 'string') {
    return;
  }
  var name = getComponentName(type);
  var propTypes = void 0;
  if (typeof type === 'function') {
    propTypes = type.propTypes;
  } else if (typeof type === 'object' && (type.$$typeof === REACT_FORWARD_REF_TYPE ||
  // Note: Memo only checks outer props here.
  // Inner props are checked in the reconciler.
  type.$$typeof === REACT_MEMO_TYPE)) {
    propTypes = type.propTypes;
  } else {
    return;
  }
  if (propTypes) {
    setCurrentlyValidatingElement(element);
    checkPropTypes(propTypes, element.props, 'prop', name, ReactDebugCurrentFrame.getStackAddendum);
    setCurrentlyValidatingElement(null);
  } else if (type.PropTypes !== undefined && !propTypesMisspellWarningShown) {
    propTypesMisspellWarningShown = true;
    warningWithoutStack$1(false, 'Component %s declared `PropTypes` instead of `propTypes`. Did you misspell the property assignment?', name || 'Unknown');
  }
  if (typeof type.getDefaultProps === 'function') {
    !type.getDefaultProps.isReactClassApproved ? warningWithoutStack$1(false, 'getDefaultProps is only used on classic React.createClass ' + 'definitions. Use a static property named `defaultProps` instead.') : void 0;
  }
}

/**
 * Given a fragment, validate that it can only be provided with fragment props
 * @param {ReactElement} fragment
 */
function validateFragmentProps(fragment) {
  setCurrentlyValidatingElement(fragment);

  var keys = Object.keys(fragment.props);
  for (var i = 0; i < keys.length; i++) {
    var key = keys[i];
    if (key !== 'children' && key !== 'key') {
      warning$1(false, 'Invalid prop `%s` supplied to `React.Fragment`. ' + 'React.Fragment can only have `key` and `children` props.', key);
      break;
    }
  }

  if (fragment.ref !== null) {
    warning$1(false, 'Invalid attribute `ref` supplied to `React.Fragment`.');
  }

  setCurrentlyValidatingElement(null);
}

function jsxWithValidation(type, props, key, isStaticChildren, source, self) {
  var validType = isValidElementType(type);

  // We warn in this case but don't throw. We expect the element creation to
  // succeed and there will likely be errors in render.
  if (!validType) {
    var info = '';
    if (type === undefined || typeof type === 'object' && type !== null && Object.keys(type).length === 0) {
      info += ' You likely forgot to export your component from the file ' + "it's defined in, or you might have mixed up default and named imports.";
    }

    var sourceInfo = getSourceInfoErrorAddendum(source);
    if (sourceInfo) {
      info += sourceInfo;
    } else {
      info += getDeclarationErrorAddendum();
    }

    var typeString = void 0;
    if (type === null) {
      typeString = 'null';
    } else if (Array.isArray(type)) {
      typeString = 'array';
    } else if (type !== undefined && type.$$typeof === REACT_ELEMENT_TYPE) {
      typeString = '<' + (getComponentName(type.type) || 'Unknown') + ' />';
      info = ' Did you accidentally export a JSX literal instead of a component?';
    } else {
      typeString = typeof type;
    }

    warning$1(false, 'React.jsx: type is invalid -- expected a string (for ' + 'built-in components) or a class/function (for composite ' + 'components) but got: %s.%s', typeString, info);
  }

  var element = jsxDEV(type, props, key, source, self);

  // The result can be nullish if a mock or a custom function is used.
  // TODO: Drop this when these are no longer allowed as the type argument.
  if (element == null) {
    return element;
  }

  // Skip key warning if the type isn't valid since our key validation logic
  // doesn't expect a non-string/function type and can throw confusing errors.
  // We don't want exception behavior to differ between dev and prod.
  // (Rendering will throw with a helpful message and as soon as the type is
  // fixed, the key warnings will appear.)
  if (validType) {
    var children = props.children;
    if (children !== undefined) {
      if (isStaticChildren) {
        for (var i = 0; i < children.length; i++) {
          validateChildKeys(children[i], type);
        }
      } else {
        validateChildKeys(children, type);
      }
    }
  }

  if (props.key !== undefined) {
    warning$1(false, 'React.jsx: Spreading a key to JSX is a deprecated pattern. ' + 'Explicitly pass a key after spreading props in your JSX call. ' + 'E.g. <ComponentName {...props} key={key} />');
  }

  if (type === REACT_FRAGMENT_TYPE) {
    validateFragmentProps(element);
  } else {
    validatePropTypes(element);
  }

  return element;
}

// These two functions exist to still get child warnings in dev
// even with the prod transform. This means that jsxDEV is purely
// opt-in behavior for better messages but that we won't stop
// giving you warnings if you use production apis.
function jsxWithValidationStatic(type, props, key) {
  return jsxWithValidation(type, props, key, true);
}

function jsxWithValidationDynamic(type, props, key) {
  return jsxWithValidation(type, props, key, false);
}

function createElementWithValidation(type, props, children) {
  var validType = isValidElementType(type);

  // We warn in this case but don't throw. We expect the element creation to
  // succeed and there will likely be errors in render.
  if (!validType) {
    var info = '';
    if (type === undefined || typeof type === 'object' && type !== null && Object.keys(type).length === 0) {
      info += ' You likely forgot to export your component from the file ' + "it's defined in, or you might have mixed up default and named imports.";
    }

    var sourceInfo = getSourceInfoErrorAddendumForProps(props);
    if (sourceInfo) {
      info += sourceInfo;
    } else {
      info += getDeclarationErrorAddendum();
    }

    var typeString = void 0;
    if (type === null) {
      typeString = 'null';
    } else if (Array.isArray(type)) {
      typeString = 'array';
    } else if (type !== undefined && type.$$typeof === REACT_ELEMENT_TYPE) {
      typeString = '<' + (getComponentName(type.type) || 'Unknown') + ' />';
      info = ' Did you accidentally export a JSX literal instead of a component?';
    } else {
      typeString = typeof type;
    }

    warning$1(false, 'React.createElement: type is invalid -- expected a string (for ' + 'built-in components) or a class/function (for composite ' + 'components) but got: %s.%s', typeString, info);
  }

  var element = createElement.apply(this, arguments);

  // The result can be nullish if a mock or a custom function is used.
  // TODO: Drop this when these are no longer allowed as the type argument.
  if (element == null) {
    return element;
  }

  // Skip key warning if the type isn't valid since our key validation logic
  // doesn't expect a non-string/function type and can throw confusing errors.
  // We don't want exception behavior to differ between dev and prod.
  // (Rendering will throw with a helpful message and as soon as the type is
  // fixed, the key warnings will appear.)
  if (validType) {
    for (var i = 2; i < arguments.length; i++) {
      validateChildKeys(arguments[i], type);
    }
  }

  if (type === REACT_FRAGMENT_TYPE) {
    validateFragmentProps(element);
  } else {
    validatePropTypes(element);
  }

  return element;
}

function createFactoryWithValidation(type) {
  var validatedFactory = createElementWithValidation.bind(null, type);
  validatedFactory.type = type;
  // Legacy hook: remove it
  {
    Object.defineProperty(validatedFactory, 'type', {
      enumerable: false,
      get: function () {
        lowPriorityWarning$1(false, 'Factory.type is deprecated. Access the class directly ' + 'before passing it to createFactory.');
        Object.defineProperty(this, 'type', {
          value: type
        });
        return type;
      }
    });
  }

  return validatedFactory;
}

function cloneElementWithValidation(element, props, children) {
  var newElement = cloneElement.apply(this, arguments);
  for (var i = 2; i < arguments.length; i++) {
    validateChildKeys(arguments[i], newElement.type);
  }
  validatePropTypes(newElement);
  return newElement;
}

var hasBadMapPolyfill = void 0;

{
  hasBadMapPolyfill = false;
  try {
    var frozenObject = Object.freeze({});
    var testMap = new Map([[frozenObject, null]]);
    var testSet = new Set([frozenObject]);
    // This is necessary for Rollup to not consider these unused.
    // https://github.com/rollup/rollup/issues/1771
    // TODO: we can remove these if Rollup fixes the bug.
    testMap.set(0, 0);
    testSet.add(0);
  } catch (e) {
    // TODO: Consider warning about bad polyfills
    hasBadMapPolyfill = true;
  }
}

function createFundamentalComponent(impl) {
  // We use responder as a Map key later on. When we have a bad
  // polyfill, then we can't use it as a key as the polyfill tries
  // to add a property to the object.
  if (true && !hasBadMapPolyfill) {
    Object.freeze(impl);
  }
  var fundamantalComponent = {
    $$typeof: REACT_FUNDAMENTAL_TYPE,
    impl: impl
  };
  {
    Object.freeze(fundamantalComponent);
  }
  return fundamantalComponent;
}

function createEventResponder(displayName, responderConfig) {
  var getInitialState = responderConfig.getInitialState,
      onEvent = responderConfig.onEvent,
      onMount = responderConfig.onMount,
      onUnmount = responderConfig.onUnmount,
      onOwnershipChange = responderConfig.onOwnershipChange,
      onRootEvent = responderConfig.onRootEvent,
      rootEventTypes = responderConfig.rootEventTypes,
      targetEventTypes = responderConfig.targetEventTypes;

  var eventResponder = {
    $$typeof: REACT_RESPONDER_TYPE,
    displayName: displayName,
    getInitialState: getInitialState || null,
    onEvent: onEvent || null,
    onMount: onMount || null,
    onOwnershipChange: onOwnershipChange || null,
    onRootEvent: onRootEvent || null,
    onUnmount: onUnmount || null,
    rootEventTypes: rootEventTypes || null,
    targetEventTypes: targetEventTypes || null
  };
  // We use responder as a Map key later on. When we have a bad
  // polyfill, then we can't use it as a key as the polyfill tries
  // to add a property to the object.
  if (true && !hasBadMapPolyfill) {
    Object.freeze(eventResponder);
  }
  return eventResponder;
}

// Helps identify side effects in begin-phase lifecycle hooks and setState reducers:


// In some cases, StrictMode should also double-render lifecycles.
// This can be confusing for tests though,
// And it can be bad for performance in production.
// This feature flag can be used to control the behavior:


// To preserve the "Pause on caught exceptions" behavior of the debugger, we
// replay the begin phase of a failed component inside invokeGuardedCallback.


// Warn about deprecated, async-unsafe lifecycles; relates to RFC #6:


// Gather advanced timing metrics for Profiler subtrees.


// Trace which interactions trigger each commit.


// Only used in www builds.
 // TODO: true? Here it might just be false.

// Only used in www builds.


// Only used in www builds.


// Disable javascript: URL strings in href for XSS protection.


// React Fire: prevent the value and checked attributes from syncing
// with their related DOM properties


// These APIs will no longer be "unstable" in the upcoming 16.7 release,
// Control this behavior with a flag to support 16.6 minor releases in the meanwhile.




// See https://github.com/react-native-community/discussions-and-proposals/issues/72 for more information
// This is a flag so we can fix warnings in RN core before turning it on


// Experimental React Flare event system and event components support.
var enableFlareAPI = false;

// Experimental Host Component support.
var enableFundamentalAPI = false;

// New API for JSX transforms to target - https://github.com/reactjs/rfcs/pull/107
var enableJSXTransformAPI = false;

// We will enforce mocking scheduler with scheduler/unstable_mock at some point. (v17?)
// Till then, we warn about the missing mock, but still fallback to a sync mode compatible version

// Temporary flag to revert the fix in #15650


// For tests, we flush suspense fallbacks in an act scope;
// *except* in some of our own tests, where we test incremental loading states.


// Changes priority of some events like mousemove to user-blocking priority,
// but without making them discrete. The flag exists in case it causes
// starvation problems.


// Add a callback property to suspense to notify which promises are currently
// in the update queue. This allows reporting and tracing of what is causing
// the user to see a loading state.


// Part of the simplification of React.createElement so we can eventually move
// from React.createElement to React.jsx
// https://github.com/reactjs/rfcs/blob/createlement-rfc/text/0000-create-element-changes.md

var React = {
  Children: {
    map: mapChildren,
    forEach: forEachChildren,
    count: countChildren,
    toArray: toArray,
    only: onlyChild
  },

  createRef: createRef,
  Component: Component,
  PureComponent: PureComponent,

  createContext: createContext,
  forwardRef: forwardRef,
  lazy: lazy,
  memo: memo,

  useCallback: useCallback,
  useContext: useContext,
  useEffect: useEffect,
  useImperativeHandle: useImperativeHandle,
  useDebugValue: useDebugValue,
  useLayoutEffect: useLayoutEffect,
  useMemo: useMemo,
  useReducer: useReducer,
  useRef: useRef,
  useState: useState,

  Fragment: REACT_FRAGMENT_TYPE,
  Profiler: REACT_PROFILER_TYPE,
  StrictMode: REACT_STRICT_MODE_TYPE,
  Suspense: REACT_SUSPENSE_TYPE,
  unstable_SuspenseList: REACT_SUSPENSE_LIST_TYPE,

  createElement: createElementWithValidation,
  cloneElement: cloneElementWithValidation,
  createFactory: createFactoryWithValidation,
  isValidElement: isValidElement,

  version: ReactVersion,

  unstable_withSuspenseConfig: withSuspenseConfig,

  __SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED: ReactSharedInternals
};

if (enableFlareAPI) {
  React.unstable_useResponder = useResponder;
  React.unstable_createResponder = createEventResponder;
}

if (enableFundamentalAPI) {
  React.unstable_createFundamental = createFundamentalComponent;
}

// Note: some APIs are added with feature flags.
// Make sure that stable builds for open source
// don't modify the React object to avoid deopts.
// Also let's not expose their names in stable builds.

if (enableJSXTransformAPI) {
  {
    React.jsxDEV = jsxWithValidation;
    React.jsx = jsxWithValidationDynamic;
    React.jsxs = jsxWithValidationStatic;
  }
}



var React$2 = Object.freeze({
	default: React
});

var React$3 = ( React$2 && React ) || React$2;

// TODO: decide on the top-level export form.
// This is hacky but makes it work with both Rollup and Jest.
var react = React$3.default || React$3;

module.exports = react;
  })();
}

}).call(this,require('_process'))
},{"_process":24,"object-assign":20,"prop-types/checkPropTypes":25}],72:[function(require,module,exports){
/** @license React v16.9.0
 * react.production.min.js
 *
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

'use strict';var h=require("object-assign"),n="function"===typeof Symbol&&Symbol.for,p=n?Symbol.for("react.element"):60103,q=n?Symbol.for("react.portal"):60106,r=n?Symbol.for("react.fragment"):60107,t=n?Symbol.for("react.strict_mode"):60108,u=n?Symbol.for("react.profiler"):60114,v=n?Symbol.for("react.provider"):60109,w=n?Symbol.for("react.context"):60110,x=n?Symbol.for("react.forward_ref"):60112,y=n?Symbol.for("react.suspense"):60113,aa=n?Symbol.for("react.suspense_list"):60120,ba=n?Symbol.for("react.memo"):
60115,ca=n?Symbol.for("react.lazy"):60116;n&&Symbol.for("react.fundamental");n&&Symbol.for("react.responder");var z="function"===typeof Symbol&&Symbol.iterator;
function A(a){for(var b=a.message,d="https://reactjs.org/docs/error-decoder.html?invariant="+b,c=1;c<arguments.length;c++)d+="&args[]="+encodeURIComponent(arguments[c]);a.message="Minified React error #"+b+"; visit "+d+" for the full message or use the non-minified dev environment for full errors and additional helpful warnings. ";return a}var B={isMounted:function(){return!1},enqueueForceUpdate:function(){},enqueueReplaceState:function(){},enqueueSetState:function(){}},C={};
function D(a,b,d){this.props=a;this.context=b;this.refs=C;this.updater=d||B}D.prototype.isReactComponent={};D.prototype.setState=function(a,b){if("object"!==typeof a&&"function"!==typeof a&&null!=a)throw A(Error(85));this.updater.enqueueSetState(this,a,b,"setState")};D.prototype.forceUpdate=function(a){this.updater.enqueueForceUpdate(this,a,"forceUpdate")};function E(){}E.prototype=D.prototype;function F(a,b,d){this.props=a;this.context=b;this.refs=C;this.updater=d||B}var G=F.prototype=new E;
G.constructor=F;h(G,D.prototype);G.isPureReactComponent=!0;var H={current:null},I={suspense:null},J={current:null},K=Object.prototype.hasOwnProperty,L={key:!0,ref:!0,__self:!0,__source:!0};
function M(a,b,d){var c=void 0,e={},g=null,k=null;if(null!=b)for(c in void 0!==b.ref&&(k=b.ref),void 0!==b.key&&(g=""+b.key),b)K.call(b,c)&&!L.hasOwnProperty(c)&&(e[c]=b[c]);var f=arguments.length-2;if(1===f)e.children=d;else if(1<f){for(var l=Array(f),m=0;m<f;m++)l[m]=arguments[m+2];e.children=l}if(a&&a.defaultProps)for(c in f=a.defaultProps,f)void 0===e[c]&&(e[c]=f[c]);return{$$typeof:p,type:a,key:g,ref:k,props:e,_owner:J.current}}
function da(a,b){return{$$typeof:p,type:a.type,key:b,ref:a.ref,props:a.props,_owner:a._owner}}function N(a){return"object"===typeof a&&null!==a&&a.$$typeof===p}function escape(a){var b={"=":"=0",":":"=2"};return"$"+(""+a).replace(/[=:]/g,function(a){return b[a]})}var O=/\/+/g,P=[];function Q(a,b,d,c){if(P.length){var e=P.pop();e.result=a;e.keyPrefix=b;e.func=d;e.context=c;e.count=0;return e}return{result:a,keyPrefix:b,func:d,context:c,count:0}}
function R(a){a.result=null;a.keyPrefix=null;a.func=null;a.context=null;a.count=0;10>P.length&&P.push(a)}
function S(a,b,d,c){var e=typeof a;if("undefined"===e||"boolean"===e)a=null;var g=!1;if(null===a)g=!0;else switch(e){case "string":case "number":g=!0;break;case "object":switch(a.$$typeof){case p:case q:g=!0}}if(g)return d(c,a,""===b?"."+T(a,0):b),1;g=0;b=""===b?".":b+":";if(Array.isArray(a))for(var k=0;k<a.length;k++){e=a[k];var f=b+T(e,k);g+=S(e,f,d,c)}else if(null===a||"object"!==typeof a?f=null:(f=z&&a[z]||a["@@iterator"],f="function"===typeof f?f:null),"function"===typeof f)for(a=f.call(a),k=
0;!(e=a.next()).done;)e=e.value,f=b+T(e,k++),g+=S(e,f,d,c);else if("object"===e)throw d=""+a,A(Error(31),"[object Object]"===d?"object with keys {"+Object.keys(a).join(", ")+"}":d,"");return g}function U(a,b,d){return null==a?0:S(a,"",b,d)}function T(a,b){return"object"===typeof a&&null!==a&&null!=a.key?escape(a.key):b.toString(36)}function ea(a,b){a.func.call(a.context,b,a.count++)}
function fa(a,b,d){var c=a.result,e=a.keyPrefix;a=a.func.call(a.context,b,a.count++);Array.isArray(a)?V(a,c,d,function(a){return a}):null!=a&&(N(a)&&(a=da(a,e+(!a.key||b&&b.key===a.key?"":(""+a.key).replace(O,"$&/")+"/")+d)),c.push(a))}function V(a,b,d,c,e){var g="";null!=d&&(g=(""+d).replace(O,"$&/")+"/");b=Q(b,g,c,e);U(a,fa,b);R(b)}function W(){var a=H.current;if(null===a)throw A(Error(321));return a}
var X={Children:{map:function(a,b,d){if(null==a)return a;var c=[];V(a,c,null,b,d);return c},forEach:function(a,b,d){if(null==a)return a;b=Q(null,null,b,d);U(a,ea,b);R(b)},count:function(a){return U(a,function(){return null},null)},toArray:function(a){var b=[];V(a,b,null,function(a){return a});return b},only:function(a){if(!N(a))throw A(Error(143));return a}},createRef:function(){return{current:null}},Component:D,PureComponent:F,createContext:function(a,b){void 0===b&&(b=null);a={$$typeof:w,_calculateChangedBits:b,
_currentValue:a,_currentValue2:a,_threadCount:0,Provider:null,Consumer:null};a.Provider={$$typeof:v,_context:a};return a.Consumer=a},forwardRef:function(a){return{$$typeof:x,render:a}},lazy:function(a){return{$$typeof:ca,_ctor:a,_status:-1,_result:null}},memo:function(a,b){return{$$typeof:ba,type:a,compare:void 0===b?null:b}},useCallback:function(a,b){return W().useCallback(a,b)},useContext:function(a,b){return W().useContext(a,b)},useEffect:function(a,b){return W().useEffect(a,b)},useImperativeHandle:function(a,
b,d){return W().useImperativeHandle(a,b,d)},useDebugValue:function(){},useLayoutEffect:function(a,b){return W().useLayoutEffect(a,b)},useMemo:function(a,b){return W().useMemo(a,b)},useReducer:function(a,b,d){return W().useReducer(a,b,d)},useRef:function(a){return W().useRef(a)},useState:function(a){return W().useState(a)},Fragment:r,Profiler:u,StrictMode:t,Suspense:y,unstable_SuspenseList:aa,createElement:M,cloneElement:function(a,b,d){if(null===a||void 0===a)throw A(Error(267),a);var c=void 0,e=
h({},a.props),g=a.key,k=a.ref,f=a._owner;if(null!=b){void 0!==b.ref&&(k=b.ref,f=J.current);void 0!==b.key&&(g=""+b.key);var l=void 0;a.type&&a.type.defaultProps&&(l=a.type.defaultProps);for(c in b)K.call(b,c)&&!L.hasOwnProperty(c)&&(e[c]=void 0===b[c]&&void 0!==l?l[c]:b[c])}c=arguments.length-2;if(1===c)e.children=d;else if(1<c){l=Array(c);for(var m=0;m<c;m++)l[m]=arguments[m+2];e.children=l}return{$$typeof:p,type:a.type,key:g,ref:k,props:e,_owner:f}},createFactory:function(a){var b=M.bind(null,a);
b.type=a;return b},isValidElement:N,version:"16.9.0",unstable_withSuspenseConfig:function(a,b){var d=I.suspense;I.suspense=void 0===b?null:b;try{a()}finally{I.suspense=d}},__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED:{ReactCurrentDispatcher:H,ReactCurrentBatchConfig:I,ReactCurrentOwner:J,IsSomeRendererActing:{current:!1},assign:h}},Y={default:X},Z=Y&&X||Y;module.exports=Z.default||Z;

},{"object-assign":20}],73:[function(require,module,exports){
(function (process){
'use strict';

if (process.env.NODE_ENV === 'production') {
  module.exports = require('./cjs/react.production.min.js');
} else {
  module.exports = require('./cjs/react.development.js');
}

}).call(this,require('_process'))
},{"./cjs/react.development.js":71,"./cjs/react.production.min.js":72,"_process":24}],74:[function(require,module,exports){
'use strict';

exports.__esModule = true;
function isAbsolute(pathname) {
  return pathname.charAt(0) === '/';
}

// About 1.5x faster than the two-arg version of Array#splice()
function spliceOne(list, index) {
  for (var i = index, k = i + 1, n = list.length; k < n; i += 1, k += 1) {
    list[i] = list[k];
  }

  list.pop();
}

// This implementation is based heavily on node's url.parse
function resolvePathname(to) {
  var from = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : '';

  var toParts = to && to.split('/') || [];
  var fromParts = from && from.split('/') || [];

  var isToAbs = to && isAbsolute(to);
  var isFromAbs = from && isAbsolute(from);
  var mustEndAbs = isToAbs || isFromAbs;

  if (to && isAbsolute(to)) {
    // to is absolute
    fromParts = toParts;
  } else if (toParts.length) {
    // to is relative, drop the filename
    fromParts.pop();
    fromParts = fromParts.concat(toParts);
  }

  if (!fromParts.length) return '/';

  var hasTrailingSlash = void 0;
  if (fromParts.length) {
    var last = fromParts[fromParts.length - 1];
    hasTrailingSlash = last === '.' || last === '..' || last === '';
  } else {
    hasTrailingSlash = false;
  }

  var up = 0;
  for (var i = fromParts.length; i >= 0; i--) {
    var part = fromParts[i];

    if (part === '.') {
      spliceOne(fromParts, i);
    } else if (part === '..') {
      spliceOne(fromParts, i);
      up++;
    } else if (up) {
      spliceOne(fromParts, i);
      up--;
    }
  }

  if (!mustEndAbs) for (; up--; up) {
    fromParts.unshift('..');
  }if (mustEndAbs && fromParts[0] !== '' && (!fromParts[0] || !isAbsolute(fromParts[0]))) fromParts.unshift('');

  var result = fromParts.join('/');

  if (hasTrailingSlash && result.substr(-1) !== '/') result += '/';

  return result;
}

exports.default = resolvePathname;
module.exports = exports['default'];
},{}],75:[function(require,module,exports){
(function (process){
/** @license React v0.15.0
 * scheduler-tracing.development.js
 *
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

'use strict';



if (process.env.NODE_ENV !== "production") {
  (function() {
'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

// Helps identify side effects in begin-phase lifecycle hooks and setState reducers:


// In some cases, StrictMode should also double-render lifecycles.
// This can be confusing for tests though,
// And it can be bad for performance in production.
// This feature flag can be used to control the behavior:


// To preserve the "Pause on caught exceptions" behavior of the debugger, we
// replay the begin phase of a failed component inside invokeGuardedCallback.


// Warn about deprecated, async-unsafe lifecycles; relates to RFC #6:


// Gather advanced timing metrics for Profiler subtrees.


// Trace which interactions trigger each commit.
var enableSchedulerTracing = true;

// Only used in www builds.
 // TODO: true? Here it might just be false.

// Only used in www builds.


// Only used in www builds.


// Disable javascript: URL strings in href for XSS protection.


// React Fire: prevent the value and checked attributes from syncing
// with their related DOM properties


// These APIs will no longer be "unstable" in the upcoming 16.7 release,
// Control this behavior with a flag to support 16.6 minor releases in the meanwhile.




// See https://github.com/react-native-community/discussions-and-proposals/issues/72 for more information
// This is a flag so we can fix warnings in RN core before turning it on


// Experimental React Flare event system and event components support.


// Experimental Host Component support.


// New API for JSX transforms to target - https://github.com/reactjs/rfcs/pull/107


// We will enforce mocking scheduler with scheduler/unstable_mock at some point. (v17?)
// Till then, we warn about the missing mock, but still fallback to a sync mode compatible version

// Temporary flag to revert the fix in #15650


// For tests, we flush suspense fallbacks in an act scope;
// *except* in some of our own tests, where we test incremental loading states.


// Changes priority of some events like mousemove to user-blocking priority,
// but without making them discrete. The flag exists in case it causes
// starvation problems.


// Add a callback property to suspense to notify which promises are currently
// in the update queue. This allows reporting and tracing of what is causing
// the user to see a loading state.


// Part of the simplification of React.createElement so we can eventually move
// from React.createElement to React.jsx
// https://github.com/reactjs/rfcs/blob/createlement-rfc/text/0000-create-element-changes.md

var DEFAULT_THREAD_ID = 0;

// Counters used to generate unique IDs.
var interactionIDCounter = 0;
var threadIDCounter = 0;

// Set of currently traced interactions.
// Interactions "stack"–
// Meaning that newly traced interactions are appended to the previously active set.
// When an interaction goes out of scope, the previous set (if any) is restored.
exports.__interactionsRef = null;

// Listener(s) to notify when interactions begin and end.
exports.__subscriberRef = null;

if (enableSchedulerTracing) {
  exports.__interactionsRef = {
    current: new Set()
  };
  exports.__subscriberRef = {
    current: null
  };
}

function unstable_clear(callback) {
  if (!enableSchedulerTracing) {
    return callback();
  }

  var prevInteractions = exports.__interactionsRef.current;
  exports.__interactionsRef.current = new Set();

  try {
    return callback();
  } finally {
    exports.__interactionsRef.current = prevInteractions;
  }
}

function unstable_getCurrent() {
  if (!enableSchedulerTracing) {
    return null;
  } else {
    return exports.__interactionsRef.current;
  }
}

function unstable_getThreadID() {
  return ++threadIDCounter;
}

function unstable_trace(name, timestamp, callback) {
  var threadID = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : DEFAULT_THREAD_ID;

  if (!enableSchedulerTracing) {
    return callback();
  }

  var interaction = {
    __count: 1,
    id: interactionIDCounter++,
    name: name,
    timestamp: timestamp
  };

  var prevInteractions = exports.__interactionsRef.current;

  // Traced interactions should stack/accumulate.
  // To do that, clone the current interactions.
  // The previous set will be restored upon completion.
  var interactions = new Set(prevInteractions);
  interactions.add(interaction);
  exports.__interactionsRef.current = interactions;

  var subscriber = exports.__subscriberRef.current;
  var returnValue = void 0;

  try {
    if (subscriber !== null) {
      subscriber.onInteractionTraced(interaction);
    }
  } finally {
    try {
      if (subscriber !== null) {
        subscriber.onWorkStarted(interactions, threadID);
      }
    } finally {
      try {
        returnValue = callback();
      } finally {
        exports.__interactionsRef.current = prevInteractions;

        try {
          if (subscriber !== null) {
            subscriber.onWorkStopped(interactions, threadID);
          }
        } finally {
          interaction.__count--;

          // If no async work was scheduled for this interaction,
          // Notify subscribers that it's completed.
          if (subscriber !== null && interaction.__count === 0) {
            subscriber.onInteractionScheduledWorkCompleted(interaction);
          }
        }
      }
    }
  }

  return returnValue;
}

function unstable_wrap(callback) {
  var threadID = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : DEFAULT_THREAD_ID;

  if (!enableSchedulerTracing) {
    return callback;
  }

  var wrappedInteractions = exports.__interactionsRef.current;

  var subscriber = exports.__subscriberRef.current;
  if (subscriber !== null) {
    subscriber.onWorkScheduled(wrappedInteractions, threadID);
  }

  // Update the pending async work count for the current interactions.
  // Update after calling subscribers in case of error.
  wrappedInteractions.forEach(function (interaction) {
    interaction.__count++;
  });

  var hasRun = false;

  function wrapped() {
    var prevInteractions = exports.__interactionsRef.current;
    exports.__interactionsRef.current = wrappedInteractions;

    subscriber = exports.__subscriberRef.current;

    try {
      var returnValue = void 0;

      try {
        if (subscriber !== null) {
          subscriber.onWorkStarted(wrappedInteractions, threadID);
        }
      } finally {
        try {
          returnValue = callback.apply(undefined, arguments);
        } finally {
          exports.__interactionsRef.current = prevInteractions;

          if (subscriber !== null) {
            subscriber.onWorkStopped(wrappedInteractions, threadID);
          }
        }
      }

      return returnValue;
    } finally {
      if (!hasRun) {
        // We only expect a wrapped function to be executed once,
        // But in the event that it's executed more than once–
        // Only decrement the outstanding interaction counts once.
        hasRun = true;

        // Update pending async counts for all wrapped interactions.
        // If this was the last scheduled async work for any of them,
        // Mark them as completed.
        wrappedInteractions.forEach(function (interaction) {
          interaction.__count--;

          if (subscriber !== null && interaction.__count === 0) {
            subscriber.onInteractionScheduledWorkCompleted(interaction);
          }
        });
      }
    }
  }

  wrapped.cancel = function cancel() {
    subscriber = exports.__subscriberRef.current;

    try {
      if (subscriber !== null) {
        subscriber.onWorkCanceled(wrappedInteractions, threadID);
      }
    } finally {
      // Update pending async counts for all wrapped interactions.
      // If this was the last scheduled async work for any of them,
      // Mark them as completed.
      wrappedInteractions.forEach(function (interaction) {
        interaction.__count--;

        if (subscriber && interaction.__count === 0) {
          subscriber.onInteractionScheduledWorkCompleted(interaction);
        }
      });
    }
  };

  return wrapped;
}

var subscribers = null;
if (enableSchedulerTracing) {
  subscribers = new Set();
}

function unstable_subscribe(subscriber) {
  if (enableSchedulerTracing) {
    subscribers.add(subscriber);

    if (subscribers.size === 1) {
      exports.__subscriberRef.current = {
        onInteractionScheduledWorkCompleted: onInteractionScheduledWorkCompleted,
        onInteractionTraced: onInteractionTraced,
        onWorkCanceled: onWorkCanceled,
        onWorkScheduled: onWorkScheduled,
        onWorkStarted: onWorkStarted,
        onWorkStopped: onWorkStopped
      };
    }
  }
}

function unstable_unsubscribe(subscriber) {
  if (enableSchedulerTracing) {
    subscribers.delete(subscriber);

    if (subscribers.size === 0) {
      exports.__subscriberRef.current = null;
    }
  }
}

function onInteractionTraced(interaction) {
  var didCatchError = false;
  var caughtError = null;

  subscribers.forEach(function (subscriber) {
    try {
      subscriber.onInteractionTraced(interaction);
    } catch (error) {
      if (!didCatchError) {
        didCatchError = true;
        caughtError = error;
      }
    }
  });

  if (didCatchError) {
    throw caughtError;
  }
}

function onInteractionScheduledWorkCompleted(interaction) {
  var didCatchError = false;
  var caughtError = null;

  subscribers.forEach(function (subscriber) {
    try {
      subscriber.onInteractionScheduledWorkCompleted(interaction);
    } catch (error) {
      if (!didCatchError) {
        didCatchError = true;
        caughtError = error;
      }
    }
  });

  if (didCatchError) {
    throw caughtError;
  }
}

function onWorkScheduled(interactions, threadID) {
  var didCatchError = false;
  var caughtError = null;

  subscribers.forEach(function (subscriber) {
    try {
      subscriber.onWorkScheduled(interactions, threadID);
    } catch (error) {
      if (!didCatchError) {
        didCatchError = true;
        caughtError = error;
      }
    }
  });

  if (didCatchError) {
    throw caughtError;
  }
}

function onWorkStarted(interactions, threadID) {
  var didCatchError = false;
  var caughtError = null;

  subscribers.forEach(function (subscriber) {
    try {
      subscriber.onWorkStarted(interactions, threadID);
    } catch (error) {
      if (!didCatchError) {
        didCatchError = true;
        caughtError = error;
      }
    }
  });

  if (didCatchError) {
    throw caughtError;
  }
}

function onWorkStopped(interactions, threadID) {
  var didCatchError = false;
  var caughtError = null;

  subscribers.forEach(function (subscriber) {
    try {
      subscriber.onWorkStopped(interactions, threadID);
    } catch (error) {
      if (!didCatchError) {
        didCatchError = true;
        caughtError = error;
      }
    }
  });

  if (didCatchError) {
    throw caughtError;
  }
}

function onWorkCanceled(interactions, threadID) {
  var didCatchError = false;
  var caughtError = null;

  subscribers.forEach(function (subscriber) {
    try {
      subscriber.onWorkCanceled(interactions, threadID);
    } catch (error) {
      if (!didCatchError) {
        didCatchError = true;
        caughtError = error;
      }
    }
  });

  if (didCatchError) {
    throw caughtError;
  }
}

exports.unstable_clear = unstable_clear;
exports.unstable_getCurrent = unstable_getCurrent;
exports.unstable_getThreadID = unstable_getThreadID;
exports.unstable_trace = unstable_trace;
exports.unstable_wrap = unstable_wrap;
exports.unstable_subscribe = unstable_subscribe;
exports.unstable_unsubscribe = unstable_unsubscribe;
  })();
}

}).call(this,require('_process'))
},{"_process":24}],76:[function(require,module,exports){
/** @license React v0.15.0
 * scheduler-tracing.production.min.js
 *
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

'use strict';Object.defineProperty(exports,"__esModule",{value:!0});var b=0;exports.__interactionsRef=null;exports.__subscriberRef=null;exports.unstable_clear=function(a){return a()};exports.unstable_getCurrent=function(){return null};exports.unstable_getThreadID=function(){return++b};exports.unstable_trace=function(a,d,c){return c()};exports.unstable_wrap=function(a){return a};exports.unstable_subscribe=function(){};exports.unstable_unsubscribe=function(){};

},{}],77:[function(require,module,exports){
(function (process){
/** @license React v0.15.0
 * scheduler.development.js
 *
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

'use strict';



if (process.env.NODE_ENV !== "production") {
  (function() {
'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

var enableSchedulerDebugging = false;
var enableIsInputPending = false;
var requestIdleCallbackBeforeFirstFrame = false;
var requestTimerEventBeforeFirstFrame = false;
var enableMessageLoopImplementation = false;

// The DOM Scheduler implementation is similar to requestIdleCallback. It
// works by scheduling a requestAnimationFrame, storing the time for the start
// of the frame, then scheduling a postMessage which gets scheduled after paint.
// Within the postMessage handler do as much work as possible until time + frame
// rate. By separating the idle call into a separate event tick we ensure that
// layout, paint and other browser work is counted against the available time.
// The frame rate is dynamically adjusted.

var requestHostCallback = void 0;

var requestHostTimeout = void 0;
var cancelHostTimeout = void 0;
var shouldYieldToHost = void 0;
var requestPaint = void 0;
exports.unstable_now = void 0;
exports.unstable_forceFrameRate = void 0;

if (
// If Scheduler runs in a non-DOM environment, it falls back to a naive
// implementation using setTimeout.
typeof window === 'undefined' ||
// Check if MessageChannel is supported, too.
typeof MessageChannel !== 'function') {
  // If this accidentally gets imported in a non-browser environment, e.g. JavaScriptCore,
  // fallback to a naive implementation.
  var _callback = null;
  var _timeoutID = null;
  var _flushCallback = function () {
    if (_callback !== null) {
      try {
        var currentTime = exports.unstable_now();
        var hasRemainingTime = true;
        _callback(hasRemainingTime, currentTime);
        _callback = null;
      } catch (e) {
        setTimeout(_flushCallback, 0);
        throw e;
      }
    }
  };
  exports.unstable_now = function () {
    return Date.now();
  };
  requestHostCallback = function (cb) {
    if (_callback !== null) {
      // Protect against re-entrancy.
      setTimeout(requestHostCallback, 0, cb);
    } else {
      _callback = cb;
      setTimeout(_flushCallback, 0);
    }
  };
  requestHostTimeout = function (cb, ms) {
    _timeoutID = setTimeout(cb, ms);
  };
  cancelHostTimeout = function () {
    clearTimeout(_timeoutID);
  };
  shouldYieldToHost = function () {
    return false;
  };
  requestPaint = exports.unstable_forceFrameRate = function () {};
} else {
  // Capture local references to native APIs, in case a polyfill overrides them.
  var performance = window.performance;
  var _Date = window.Date;
  var _setTimeout = window.setTimeout;
  var _clearTimeout = window.clearTimeout;
  var requestAnimationFrame = window.requestAnimationFrame;
  var cancelAnimationFrame = window.cancelAnimationFrame;
  var requestIdleCallback = window.requestIdleCallback;

  if (typeof console !== 'undefined') {
    // TODO: Remove fb.me link
    if (typeof requestAnimationFrame !== 'function') {
      console.error("This browser doesn't support requestAnimationFrame. " + 'Make sure that you load a ' + 'polyfill in older browsers. https://fb.me/react-polyfills');
    }
    if (typeof cancelAnimationFrame !== 'function') {
      console.error("This browser doesn't support cancelAnimationFrame. " + 'Make sure that you load a ' + 'polyfill in older browsers. https://fb.me/react-polyfills');
    }
  }

  var requestIdleCallbackBeforeFirstFrame$1 = requestIdleCallbackBeforeFirstFrame && typeof requestIdleCallback === 'function' && typeof cancelIdleCallback === 'function';

  exports.unstable_now = typeof performance === 'object' && typeof performance.now === 'function' ? function () {
    return performance.now();
  } : function () {
    return _Date.now();
  };

  var isRAFLoopRunning = false;
  var isMessageLoopRunning = false;
  var scheduledHostCallback = null;
  var rAFTimeoutID = -1;
  var taskTimeoutID = -1;

  var frameLength = enableMessageLoopImplementation ? // We won't attempt to align with the vsync. Instead we'll yield multiple
  // times per frame, often enough to keep it responsive even at really
  // high frame rates > 120.
  5 : // Use a heuristic to measure the frame rate and yield at the end of the
  // frame. We start out assuming that we run at 30fps but then the
  // heuristic tracking will adjust this value to a faster fps if we get
  // more frequent animation frames.
  33.33;

  var prevRAFTime = -1;
  var prevRAFInterval = -1;
  var frameDeadline = 0;

  var fpsLocked = false;

  // TODO: Make this configurable
  // TODO: Adjust this based on priority?
  var maxFrameLength = 300;
  var needsPaint = false;

  if (enableIsInputPending && navigator !== undefined && navigator.scheduling !== undefined && navigator.scheduling.isInputPending !== undefined) {
    var scheduling = navigator.scheduling;
    shouldYieldToHost = function () {
      var currentTime = exports.unstable_now();
      if (currentTime >= frameDeadline) {
        // There's no time left in the frame. We may want to yield control of
        // the main thread, so the browser can perform high priority tasks. The
        // main ones are painting and user input. If there's a pending paint or
        // a pending input, then we should yield. But if there's neither, then
        // we can yield less often while remaining responsive. We'll eventually
        // yield regardless, since there could be a pending paint that wasn't
        // accompanied by a call to `requestPaint`, or other main thread tasks
        // like network events.
        if (needsPaint || scheduling.isInputPending()) {
          // There is either a pending paint or a pending input.
          return true;
        }
        // There's no pending input. Only yield if we've reached the max
        // frame length.
        return currentTime >= frameDeadline + maxFrameLength;
      } else {
        // There's still time left in the frame.
        return false;
      }
    };

    requestPaint = function () {
      needsPaint = true;
    };
  } else {
    // `isInputPending` is not available. Since we have no way of knowing if
    // there's pending input, always yield at the end of the frame.
    shouldYieldToHost = function () {
      return exports.unstable_now() >= frameDeadline;
    };

    // Since we yield every frame regardless, `requestPaint` has no effect.
    requestPaint = function () {};
  }

  exports.unstable_forceFrameRate = function (fps) {
    if (fps < 0 || fps > 125) {
      console.error('forceFrameRate takes a positive int between 0 and 125, ' + 'forcing framerates higher than 125 fps is not unsupported');
      return;
    }
    if (fps > 0) {
      frameLength = Math.floor(1000 / fps);
      fpsLocked = true;
    } else {
      // reset the framerate
      frameLength = 33.33;
      fpsLocked = false;
    }
  };

  var performWorkUntilDeadline = function () {
    if (enableMessageLoopImplementation) {
      if (scheduledHostCallback !== null) {
        var currentTime = exports.unstable_now();
        // Yield after `frameLength` ms, regardless of where we are in the vsync
        // cycle. This means there's always time remaining at the beginning of
        // the message event.
        frameDeadline = currentTime + frameLength;
        var hasTimeRemaining = true;
        try {
          var hasMoreWork = scheduledHostCallback(hasTimeRemaining, currentTime);
          if (!hasMoreWork) {
            isMessageLoopRunning = false;
            scheduledHostCallback = null;
          } else {
            // If there's more work, schedule the next message event at the end
            // of the preceding one.
            port.postMessage(null);
          }
        } catch (error) {
          // If a scheduler task throws, exit the current browser task so the
          // error can be observed.
          port.postMessage(null);
          throw error;
        }
      }
      // Yielding to the browser will give it a chance to paint, so we can
      // reset this.
      needsPaint = false;
    } else {
      if (scheduledHostCallback !== null) {
        var _currentTime = exports.unstable_now();
        var _hasTimeRemaining = frameDeadline - _currentTime > 0;
        try {
          var _hasMoreWork = scheduledHostCallback(_hasTimeRemaining, _currentTime);
          if (!_hasMoreWork) {
            scheduledHostCallback = null;
          }
        } catch (error) {
          // If a scheduler task throws, exit the current browser task so the
          // error can be observed, and post a new task as soon as possible
          // so we can continue where we left off.
          port.postMessage(null);
          throw error;
        }
      }
      // Yielding to the browser will give it a chance to paint, so we can
      // reset this.
      needsPaint = false;
    }
  };

  var channel = new MessageChannel();
  var port = channel.port2;
  channel.port1.onmessage = performWorkUntilDeadline;

  var onAnimationFrame = function (rAFTime) {
    if (scheduledHostCallback === null) {
      // No scheduled work. Exit.
      prevRAFTime = -1;
      prevRAFInterval = -1;
      isRAFLoopRunning = false;
      return;
    }

    // Eagerly schedule the next animation callback at the beginning of the
    // frame. If the scheduler queue is not empty at the end of the frame, it
    // will continue flushing inside that callback. If the queue *is* empty,
    // then it will exit immediately. Posting the callback at the start of the
    // frame ensures it's fired within the earliest possible frame. If we
    // waited until the end of the frame to post the callback, we risk the
    // browser skipping a frame and not firing the callback until the frame
    // after that.
    isRAFLoopRunning = true;
    requestAnimationFrame(function (nextRAFTime) {
      _clearTimeout(rAFTimeoutID);
      onAnimationFrame(nextRAFTime);
    });

    // requestAnimationFrame is throttled when the tab is backgrounded. We
    // don't want to stop working entirely. So we'll fallback to a timeout loop.
    // TODO: Need a better heuristic for backgrounded work.
    var onTimeout = function () {
      frameDeadline = exports.unstable_now() + frameLength / 2;
      performWorkUntilDeadline();
      rAFTimeoutID = _setTimeout(onTimeout, frameLength * 3);
    };
    rAFTimeoutID = _setTimeout(onTimeout, frameLength * 3);

    if (prevRAFTime !== -1 &&
    // Make sure this rAF time is different from the previous one. This check
    // could fail if two rAFs fire in the same frame.
    rAFTime - prevRAFTime > 0.1) {
      var rAFInterval = rAFTime - prevRAFTime;
      if (!fpsLocked && prevRAFInterval !== -1) {
        // We've observed two consecutive frame intervals. We'll use this to
        // dynamically adjust the frame rate.
        //
        // If one frame goes long, then the next one can be short to catch up.
        // If two frames are short in a row, then that's an indication that we
        // actually have a higher frame rate than what we're currently
        // optimizing. For example, if we're running on 120hz display or 90hz VR
        // display. Take the max of the two in case one of them was an anomaly
        // due to missed frame deadlines.
        if (rAFInterval < frameLength && prevRAFInterval < frameLength) {
          frameLength = rAFInterval < prevRAFInterval ? prevRAFInterval : rAFInterval;
          if (frameLength < 8.33) {
            // Defensive coding. We don't support higher frame rates than 120hz.
            // If the calculated frame length gets lower than 8, it is probably
            // a bug.
            frameLength = 8.33;
          }
        }
      }
      prevRAFInterval = rAFInterval;
    }
    prevRAFTime = rAFTime;
    frameDeadline = rAFTime + frameLength;

    // We use the postMessage trick to defer idle work until after the repaint.
    port.postMessage(null);
  };

  requestHostCallback = function (callback) {
    scheduledHostCallback = callback;
    if (enableMessageLoopImplementation) {
      if (!isMessageLoopRunning) {
        isMessageLoopRunning = true;
        port.postMessage(null);
      }
    } else {
      if (!isRAFLoopRunning) {
        // Start a rAF loop.
        isRAFLoopRunning = true;
        requestAnimationFrame(function (rAFTime) {
          if (requestIdleCallbackBeforeFirstFrame$1) {
            cancelIdleCallback(idleCallbackID);
          }
          if (requestTimerEventBeforeFirstFrame) {
            _clearTimeout(idleTimeoutID);
          }
          onAnimationFrame(rAFTime);
        });

        // If we just missed the last vsync, the next rAF might not happen for
        // another frame. To claim as much idle time as possible, post a
        // callback with `requestIdleCallback`, which should fire if there's
        // idle time left in the frame.
        //
        // This should only be an issue for the first rAF in the loop;
        // subsequent rAFs are scheduled at the beginning of the
        // preceding frame.
        var idleCallbackID = void 0;
        if (requestIdleCallbackBeforeFirstFrame$1) {
          idleCallbackID = requestIdleCallback(function onIdleCallbackBeforeFirstFrame() {
            if (requestTimerEventBeforeFirstFrame) {
              _clearTimeout(idleTimeoutID);
            }
            frameDeadline = exports.unstable_now() + frameLength;
            performWorkUntilDeadline();
          });
        }
        // Alternate strategy to address the same problem. Scheduler a timer
        // with no delay. If this fires before the rAF, that likely indicates
        // that there's idle time before the next vsync. This isn't always the
        // case, but we'll be aggressive and assume it is, as a trade off to
        // prevent idle periods.
        var idleTimeoutID = void 0;
        if (requestTimerEventBeforeFirstFrame) {
          idleTimeoutID = _setTimeout(function onTimerEventBeforeFirstFrame() {
            if (requestIdleCallbackBeforeFirstFrame$1) {
              cancelIdleCallback(idleCallbackID);
            }
            frameDeadline = exports.unstable_now() + frameLength;
            performWorkUntilDeadline();
          }, 0);
        }
      }
    }
  };

  requestHostTimeout = function (callback, ms) {
    taskTimeoutID = _setTimeout(function () {
      callback(exports.unstable_now());
    }, ms);
  };

  cancelHostTimeout = function () {
    _clearTimeout(taskTimeoutID);
    taskTimeoutID = -1;
  };
}

/* eslint-disable no-var */

// TODO: Use symbols?
var ImmediatePriority = 1;
var UserBlockingPriority = 2;
var NormalPriority = 3;
var LowPriority = 4;
var IdlePriority = 5;

// Max 31 bit integer. The max integer size in V8 for 32-bit systems.
// Math.pow(2, 30) - 1
// 0b111111111111111111111111111111
var maxSigned31BitInt = 1073741823;

// Times out immediately
var IMMEDIATE_PRIORITY_TIMEOUT = -1;
// Eventually times out
var USER_BLOCKING_PRIORITY = 250;
var NORMAL_PRIORITY_TIMEOUT = 5000;
var LOW_PRIORITY_TIMEOUT = 10000;
// Never times out
var IDLE_PRIORITY = maxSigned31BitInt;

// Tasks are stored as a circular, doubly linked list.
var firstTask = null;
var firstDelayedTask = null;

// Pausing the scheduler is useful for debugging.
var isSchedulerPaused = false;

var currentTask = null;
var currentPriorityLevel = NormalPriority;

// This is set while performing work, to prevent re-entrancy.
var isPerformingWork = false;

var isHostCallbackScheduled = false;
var isHostTimeoutScheduled = false;

function scheduler_flushTaskAtPriority_Immediate(callback, didTimeout) {
  return callback(didTimeout);
}
function scheduler_flushTaskAtPriority_UserBlocking(callback, didTimeout) {
  return callback(didTimeout);
}
function scheduler_flushTaskAtPriority_Normal(callback, didTimeout) {
  return callback(didTimeout);
}
function scheduler_flushTaskAtPriority_Low(callback, didTimeout) {
  return callback(didTimeout);
}
function scheduler_flushTaskAtPriority_Idle(callback, didTimeout) {
  return callback(didTimeout);
}

function flushTask(task, currentTime) {
  // Remove the task from the list before calling the callback. That way the
  // list is in a consistent state even if the callback throws.
  var next = task.next;
  if (next === task) {
    // This is the only scheduled task. Clear the list.
    firstTask = null;
  } else {
    // Remove the task from its position in the list.
    if (task === firstTask) {
      firstTask = next;
    }
    var previous = task.previous;
    previous.next = next;
    next.previous = previous;
  }
  task.next = task.previous = null;

  // Now it's safe to execute the task.
  var callback = task.callback;
  var previousPriorityLevel = currentPriorityLevel;
  var previousTask = currentTask;
  currentPriorityLevel = task.priorityLevel;
  currentTask = task;
  var continuationCallback;
  try {
    var didUserCallbackTimeout = task.expirationTime <= currentTime;
    // Add an extra function to the callstack. Profiling tools can use this
    // to infer the priority of work that appears higher in the stack.
    switch (currentPriorityLevel) {
      case ImmediatePriority:
        continuationCallback = scheduler_flushTaskAtPriority_Immediate(callback, didUserCallbackTimeout);
        break;
      case UserBlockingPriority:
        continuationCallback = scheduler_flushTaskAtPriority_UserBlocking(callback, didUserCallbackTimeout);
        break;
      case NormalPriority:
        continuationCallback = scheduler_flushTaskAtPriority_Normal(callback, didUserCallbackTimeout);
        break;
      case LowPriority:
        continuationCallback = scheduler_flushTaskAtPriority_Low(callback, didUserCallbackTimeout);
        break;
      case IdlePriority:
        continuationCallback = scheduler_flushTaskAtPriority_Idle(callback, didUserCallbackTimeout);
        break;
    }
  } catch (error) {
    throw error;
  } finally {
    currentPriorityLevel = previousPriorityLevel;
    currentTask = previousTask;
  }

  // A callback may return a continuation. The continuation should be scheduled
  // with the same priority and expiration as the just-finished callback.
  if (typeof continuationCallback === 'function') {
    var expirationTime = task.expirationTime;
    var continuationTask = task;
    continuationTask.callback = continuationCallback;

    // Insert the new callback into the list, sorted by its timeout. This is
    // almost the same as the code in `scheduleCallback`, except the callback
    // is inserted into the list *before* callbacks of equal timeout instead
    // of after.
    if (firstTask === null) {
      // This is the first callback in the list.
      firstTask = continuationTask.next = continuationTask.previous = continuationTask;
    } else {
      var nextAfterContinuation = null;
      var t = firstTask;
      do {
        if (expirationTime <= t.expirationTime) {
          // This task times out at or after the continuation. We will insert
          // the continuation *before* this task.
          nextAfterContinuation = t;
          break;
        }
        t = t.next;
      } while (t !== firstTask);
      if (nextAfterContinuation === null) {
        // No equal or lower priority task was found, which means the new task
        // is the lowest priority task in the list.
        nextAfterContinuation = firstTask;
      } else if (nextAfterContinuation === firstTask) {
        // The new task is the highest priority task in the list.
        firstTask = continuationTask;
      }

      var _previous = nextAfterContinuation.previous;
      _previous.next = nextAfterContinuation.previous = continuationTask;
      continuationTask.next = nextAfterContinuation;
      continuationTask.previous = _previous;
    }
  }
}

function advanceTimers(currentTime) {
  // Check for tasks that are no longer delayed and add them to the queue.
  if (firstDelayedTask !== null && firstDelayedTask.startTime <= currentTime) {
    do {
      var task = firstDelayedTask;
      var next = task.next;
      if (task === next) {
        firstDelayedTask = null;
      } else {
        firstDelayedTask = next;
        var previous = task.previous;
        previous.next = next;
        next.previous = previous;
      }
      task.next = task.previous = null;
      insertScheduledTask(task, task.expirationTime);
    } while (firstDelayedTask !== null && firstDelayedTask.startTime <= currentTime);
  }
}

function handleTimeout(currentTime) {
  isHostTimeoutScheduled = false;
  advanceTimers(currentTime);

  if (!isHostCallbackScheduled) {
    if (firstTask !== null) {
      isHostCallbackScheduled = true;
      requestHostCallback(flushWork);
    } else if (firstDelayedTask !== null) {
      requestHostTimeout(handleTimeout, firstDelayedTask.startTime - currentTime);
    }
  }
}

function flushWork(hasTimeRemaining, initialTime) {
  // Exit right away if we're currently paused
  if (enableSchedulerDebugging && isSchedulerPaused) {
    return;
  }

  // We'll need a host callback the next time work is scheduled.
  isHostCallbackScheduled = false;
  if (isHostTimeoutScheduled) {
    // We scheduled a timeout but it's no longer needed. Cancel it.
    isHostTimeoutScheduled = false;
    cancelHostTimeout();
  }

  var currentTime = initialTime;
  advanceTimers(currentTime);

  isPerformingWork = true;
  try {
    if (!hasTimeRemaining) {
      // Flush all the expired callbacks without yielding.
      // TODO: Split flushWork into two separate functions instead of using
      // a boolean argument?
      while (firstTask !== null && firstTask.expirationTime <= currentTime && !(enableSchedulerDebugging && isSchedulerPaused)) {
        flushTask(firstTask, currentTime);
        currentTime = exports.unstable_now();
        advanceTimers(currentTime);
      }
    } else {
      // Keep flushing callbacks until we run out of time in the frame.
      if (firstTask !== null) {
        do {
          flushTask(firstTask, currentTime);
          currentTime = exports.unstable_now();
          advanceTimers(currentTime);
        } while (firstTask !== null && !shouldYieldToHost() && !(enableSchedulerDebugging && isSchedulerPaused));
      }
    }
    // Return whether there's additional work
    if (firstTask !== null) {
      return true;
    } else {
      if (firstDelayedTask !== null) {
        requestHostTimeout(handleTimeout, firstDelayedTask.startTime - currentTime);
      }
      return false;
    }
  } finally {
    isPerformingWork = false;
  }
}

function unstable_runWithPriority(priorityLevel, eventHandler) {
  switch (priorityLevel) {
    case ImmediatePriority:
    case UserBlockingPriority:
    case NormalPriority:
    case LowPriority:
    case IdlePriority:
      break;
    default:
      priorityLevel = NormalPriority;
  }

  var previousPriorityLevel = currentPriorityLevel;
  currentPriorityLevel = priorityLevel;

  try {
    return eventHandler();
  } finally {
    currentPriorityLevel = previousPriorityLevel;
  }
}

function unstable_next(eventHandler) {
  var priorityLevel;
  switch (currentPriorityLevel) {
    case ImmediatePriority:
    case UserBlockingPriority:
    case NormalPriority:
      // Shift down to normal priority
      priorityLevel = NormalPriority;
      break;
    default:
      // Anything lower than normal priority should remain at the current level.
      priorityLevel = currentPriorityLevel;
      break;
  }

  var previousPriorityLevel = currentPriorityLevel;
  currentPriorityLevel = priorityLevel;

  try {
    return eventHandler();
  } finally {
    currentPriorityLevel = previousPriorityLevel;
  }
}

function unstable_wrapCallback(callback) {
  var parentPriorityLevel = currentPriorityLevel;
  return function () {
    // This is a fork of runWithPriority, inlined for performance.
    var previousPriorityLevel = currentPriorityLevel;
    currentPriorityLevel = parentPriorityLevel;

    try {
      return callback.apply(this, arguments);
    } finally {
      currentPriorityLevel = previousPriorityLevel;
    }
  };
}

function timeoutForPriorityLevel(priorityLevel) {
  switch (priorityLevel) {
    case ImmediatePriority:
      return IMMEDIATE_PRIORITY_TIMEOUT;
    case UserBlockingPriority:
      return USER_BLOCKING_PRIORITY;
    case IdlePriority:
      return IDLE_PRIORITY;
    case LowPriority:
      return LOW_PRIORITY_TIMEOUT;
    case NormalPriority:
    default:
      return NORMAL_PRIORITY_TIMEOUT;
  }
}

function unstable_scheduleCallback(priorityLevel, callback, options) {
  var currentTime = exports.unstable_now();

  var startTime;
  var timeout;
  if (typeof options === 'object' && options !== null) {
    var delay = options.delay;
    if (typeof delay === 'number' && delay > 0) {
      startTime = currentTime + delay;
    } else {
      startTime = currentTime;
    }
    timeout = typeof options.timeout === 'number' ? options.timeout : timeoutForPriorityLevel(priorityLevel);
  } else {
    timeout = timeoutForPriorityLevel(priorityLevel);
    startTime = currentTime;
  }

  var expirationTime = startTime + timeout;

  var newTask = {
    callback: callback,
    priorityLevel: priorityLevel,
    startTime: startTime,
    expirationTime: expirationTime,
    next: null,
    previous: null
  };

  if (startTime > currentTime) {
    // This is a delayed task.
    insertDelayedTask(newTask, startTime);
    if (firstTask === null && firstDelayedTask === newTask) {
      // All tasks are delayed, and this is the task with the earliest delay.
      if (isHostTimeoutScheduled) {
        // Cancel an existing timeout.
        cancelHostTimeout();
      } else {
        isHostTimeoutScheduled = true;
      }
      // Schedule a timeout.
      requestHostTimeout(handleTimeout, startTime - currentTime);
    }
  } else {
    insertScheduledTask(newTask, expirationTime);
    // Schedule a host callback, if needed. If we're already performing work,
    // wait until the next time we yield.
    if (!isHostCallbackScheduled && !isPerformingWork) {
      isHostCallbackScheduled = true;
      requestHostCallback(flushWork);
    }
  }

  return newTask;
}

function insertScheduledTask(newTask, expirationTime) {
  // Insert the new task into the list, ordered first by its timeout, then by
  // insertion. So the new task is inserted after any other task the
  // same timeout
  if (firstTask === null) {
    // This is the first task in the list.
    firstTask = newTask.next = newTask.previous = newTask;
  } else {
    var next = null;
    var task = firstTask;
    do {
      if (expirationTime < task.expirationTime) {
        // The new task times out before this one.
        next = task;
        break;
      }
      task = task.next;
    } while (task !== firstTask);

    if (next === null) {
      // No task with a later timeout was found, which means the new task has
      // the latest timeout in the list.
      next = firstTask;
    } else if (next === firstTask) {
      // The new task has the earliest expiration in the entire list.
      firstTask = newTask;
    }

    var previous = next.previous;
    previous.next = next.previous = newTask;
    newTask.next = next;
    newTask.previous = previous;
  }
}

function insertDelayedTask(newTask, startTime) {
  // Insert the new task into the list, ordered by its start time.
  if (firstDelayedTask === null) {
    // This is the first task in the list.
    firstDelayedTask = newTask.next = newTask.previous = newTask;
  } else {
    var next = null;
    var task = firstDelayedTask;
    do {
      if (startTime < task.startTime) {
        // The new task times out before this one.
        next = task;
        break;
      }
      task = task.next;
    } while (task !== firstDelayedTask);

    if (next === null) {
      // No task with a later timeout was found, which means the new task has
      // the latest timeout in the list.
      next = firstDelayedTask;
    } else if (next === firstDelayedTask) {
      // The new task has the earliest expiration in the entire list.
      firstDelayedTask = newTask;
    }

    var previous = next.previous;
    previous.next = next.previous = newTask;
    newTask.next = next;
    newTask.previous = previous;
  }
}

function unstable_pauseExecution() {
  isSchedulerPaused = true;
}

function unstable_continueExecution() {
  isSchedulerPaused = false;
  if (!isHostCallbackScheduled && !isPerformingWork) {
    isHostCallbackScheduled = true;
    requestHostCallback(flushWork);
  }
}

function unstable_getFirstCallbackNode() {
  return firstTask;
}

function unstable_cancelCallback(task) {
  var next = task.next;
  if (next === null) {
    // Already cancelled.
    return;
  }

  if (task === next) {
    if (task === firstTask) {
      firstTask = null;
    } else if (task === firstDelayedTask) {
      firstDelayedTask = null;
    }
  } else {
    if (task === firstTask) {
      firstTask = next;
    } else if (task === firstDelayedTask) {
      firstDelayedTask = next;
    }
    var previous = task.previous;
    previous.next = next;
    next.previous = previous;
  }

  task.next = task.previous = null;
}

function unstable_getCurrentPriorityLevel() {
  return currentPriorityLevel;
}

function unstable_shouldYield() {
  var currentTime = exports.unstable_now();
  advanceTimers(currentTime);
  return currentTask !== null && firstTask !== null && firstTask.startTime <= currentTime && firstTask.expirationTime < currentTask.expirationTime || shouldYieldToHost();
}

var unstable_requestPaint = requestPaint;

exports.unstable_ImmediatePriority = ImmediatePriority;
exports.unstable_UserBlockingPriority = UserBlockingPriority;
exports.unstable_NormalPriority = NormalPriority;
exports.unstable_IdlePriority = IdlePriority;
exports.unstable_LowPriority = LowPriority;
exports.unstable_runWithPriority = unstable_runWithPriority;
exports.unstable_next = unstable_next;
exports.unstable_scheduleCallback = unstable_scheduleCallback;
exports.unstable_cancelCallback = unstable_cancelCallback;
exports.unstable_wrapCallback = unstable_wrapCallback;
exports.unstable_getCurrentPriorityLevel = unstable_getCurrentPriorityLevel;
exports.unstable_shouldYield = unstable_shouldYield;
exports.unstable_requestPaint = unstable_requestPaint;
exports.unstable_continueExecution = unstable_continueExecution;
exports.unstable_pauseExecution = unstable_pauseExecution;
exports.unstable_getFirstCallbackNode = unstable_getFirstCallbackNode;
  })();
}

}).call(this,require('_process'))
},{"_process":24}],78:[function(require,module,exports){
/** @license React v0.15.0
 * scheduler.production.min.js
 *
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

'use strict';Object.defineProperty(exports,"__esModule",{value:!0});var d=void 0,e=void 0,g=void 0,m=void 0,n=void 0;exports.unstable_now=void 0;exports.unstable_forceFrameRate=void 0;
if("undefined"===typeof window||"function"!==typeof MessageChannel){var p=null,q=null,r=function(){if(null!==p)try{var a=exports.unstable_now();p(!0,a);p=null}catch(b){throw setTimeout(r,0),b;}};exports.unstable_now=function(){return Date.now()};d=function(a){null!==p?setTimeout(d,0,a):(p=a,setTimeout(r,0))};e=function(a,b){q=setTimeout(a,b)};g=function(){clearTimeout(q)};m=function(){return!1};n=exports.unstable_forceFrameRate=function(){}}else{var t=window.performance,u=window.Date,v=window.setTimeout,
w=window.clearTimeout,x=window.requestAnimationFrame,y=window.cancelAnimationFrame;"undefined"!==typeof console&&("function"!==typeof x&&console.error("This browser doesn't support requestAnimationFrame. Make sure that you load a polyfill in older browsers. https://fb.me/react-polyfills"),"function"!==typeof y&&console.error("This browser doesn't support cancelAnimationFrame. Make sure that you load a polyfill in older browsers. https://fb.me/react-polyfills"));exports.unstable_now="object"===typeof t&&
"function"===typeof t.now?function(){return t.now()}:function(){return u.now()};var z=!1,A=null,B=-1,C=-1,D=33.33,E=-1,F=-1,G=0,H=!1;m=function(){return exports.unstable_now()>=G};n=function(){};exports.unstable_forceFrameRate=function(a){0>a||125<a?console.error("forceFrameRate takes a positive int between 0 and 125, forcing framerates higher than 125 fps is not unsupported"):0<a?(D=Math.floor(1E3/a),H=!0):(D=33.33,H=!1)};var J=function(){if(null!==A){var a=exports.unstable_now(),b=0<G-a;try{A(b,
a)||(A=null)}catch(c){throw I.postMessage(null),c;}}},K=new MessageChannel,I=K.port2;K.port1.onmessage=J;var L=function(a){if(null===A)F=E=-1,z=!1;else{z=!0;x(function(a){w(B);L(a)});var b=function(){G=exports.unstable_now()+D/2;J();B=v(b,3*D)};B=v(b,3*D);if(-1!==E&&.1<a-E){var c=a-E;!H&&-1!==F&&c<D&&F<D&&(D=c<F?F:c,8.33>D&&(D=8.33));F=c}E=a;G=a+D;I.postMessage(null)}};d=function(a){A=a;z||(z=!0,x(function(a){L(a)}))};e=function(a,b){C=v(function(){a(exports.unstable_now())},b)};g=function(){w(C);
C=-1}}var M=null,N=null,O=null,P=3,Q=!1,R=!1,S=!1;
function T(a,b){var c=a.next;if(c===a)M=null;else{a===M&&(M=c);var f=a.previous;f.next=c;c.previous=f}a.next=a.previous=null;c=a.callback;f=P;var l=O;P=a.priorityLevel;O=a;try{var h=a.expirationTime<=b;switch(P){case 1:var k=c(h);break;case 2:k=c(h);break;case 3:k=c(h);break;case 4:k=c(h);break;case 5:k=c(h)}}catch(Z){throw Z;}finally{P=f,O=l}if("function"===typeof k)if(b=a.expirationTime,a.callback=k,null===M)M=a.next=a.previous=a;else{k=null;h=M;do{if(b<=h.expirationTime){k=h;break}h=h.next}while(h!==
M);null===k?k=M:k===M&&(M=a);b=k.previous;b.next=k.previous=a;a.next=k;a.previous=b}}function U(a){if(null!==N&&N.startTime<=a){do{var b=N,c=b.next;if(b===c)N=null;else{N=c;var f=b.previous;f.next=c;c.previous=f}b.next=b.previous=null;V(b,b.expirationTime)}while(null!==N&&N.startTime<=a)}}function W(a){S=!1;U(a);R||(null!==M?(R=!0,d(X)):null!==N&&e(W,N.startTime-a))}
function X(a,b){R=!1;S&&(S=!1,g());U(b);Q=!0;try{if(!a)for(;null!==M&&M.expirationTime<=b;)T(M,b),b=exports.unstable_now(),U(b);else if(null!==M){do T(M,b),b=exports.unstable_now(),U(b);while(null!==M&&!m())}if(null!==M)return!0;null!==N&&e(W,N.startTime-b);return!1}finally{Q=!1}}function Y(a){switch(a){case 1:return-1;case 2:return 250;case 5:return 1073741823;case 4:return 1E4;default:return 5E3}}
function V(a,b){if(null===M)M=a.next=a.previous=a;else{var c=null,f=M;do{if(b<f.expirationTime){c=f;break}f=f.next}while(f!==M);null===c?c=M:c===M&&(M=a);b=c.previous;b.next=c.previous=a;a.next=c;a.previous=b}}var aa=n;exports.unstable_ImmediatePriority=1;exports.unstable_UserBlockingPriority=2;exports.unstable_NormalPriority=3;exports.unstable_IdlePriority=5;exports.unstable_LowPriority=4;
exports.unstable_runWithPriority=function(a,b){switch(a){case 1:case 2:case 3:case 4:case 5:break;default:a=3}var c=P;P=a;try{return b()}finally{P=c}};exports.unstable_next=function(a){switch(P){case 1:case 2:case 3:var b=3;break;default:b=P}var c=P;P=b;try{return a()}finally{P=c}};
exports.unstable_scheduleCallback=function(a,b,c){var f=exports.unstable_now();if("object"===typeof c&&null!==c){var l=c.delay;l="number"===typeof l&&0<l?f+l:f;c="number"===typeof c.timeout?c.timeout:Y(a)}else c=Y(a),l=f;c=l+c;a={callback:b,priorityLevel:a,startTime:l,expirationTime:c,next:null,previous:null};if(l>f){c=l;if(null===N)N=a.next=a.previous=a;else{b=null;var h=N;do{if(c<h.startTime){b=h;break}h=h.next}while(h!==N);null===b?b=N:b===N&&(N=a);c=b.previous;c.next=b.previous=a;a.next=b;a.previous=
c}null===M&&N===a&&(S?g():S=!0,e(W,l-f))}else V(a,c),R||Q||(R=!0,d(X));return a};exports.unstable_cancelCallback=function(a){var b=a.next;if(null!==b){if(a===b)a===M?M=null:a===N&&(N=null);else{a===M?M=b:a===N&&(N=b);var c=a.previous;c.next=b;b.previous=c}a.next=a.previous=null}};exports.unstable_wrapCallback=function(a){var b=P;return function(){var c=P;P=b;try{return a.apply(this,arguments)}finally{P=c}}};exports.unstable_getCurrentPriorityLevel=function(){return P};
exports.unstable_shouldYield=function(){var a=exports.unstable_now();U(a);return null!==O&&null!==M&&M.startTime<=a&&M.expirationTime<O.expirationTime||m()};exports.unstable_requestPaint=aa;exports.unstable_continueExecution=function(){R||Q||(R=!0,d(X))};exports.unstable_pauseExecution=function(){};exports.unstable_getFirstCallbackNode=function(){return M};

},{}],79:[function(require,module,exports){
(function (process){
'use strict';

if (process.env.NODE_ENV === 'production') {
  module.exports = require('./cjs/scheduler.production.min.js');
} else {
  module.exports = require('./cjs/scheduler.development.js');
}

}).call(this,require('_process'))
},{"./cjs/scheduler.development.js":77,"./cjs/scheduler.production.min.js":78,"_process":24}],80:[function(require,module,exports){
(function (process){
'use strict';

if (process.env.NODE_ENV === 'production') {
  module.exports = require('./cjs/scheduler-tracing.production.min.js');
} else {
  module.exports = require('./cjs/scheduler-tracing.development.js');
}

}).call(this,require('_process'))
},{"./cjs/scheduler-tracing.development.js":75,"./cjs/scheduler-tracing.production.min.js":76,"_process":24}],81:[function(require,module,exports){
"use strict";

exports.__esModule = true;
exports.default = void 0;

var _computeScrollIntoView = _interopRequireDefault(require("compute-scroll-into-view"));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function isOptionsObject(options) {
  return options === Object(options) && Object.keys(options).length !== 0;
}

function defaultBehavior(actions, behavior) {
  if (behavior === void 0) {
    behavior = 'auto';
  }

  var canSmoothScroll = 'scrollBehavior' in document.body.style;
  actions.forEach(function (_ref) {
    var el = _ref.el,
        top = _ref.top,
        left = _ref.left;

    if (el.scroll && canSmoothScroll) {
      el.scroll({
        top: top,
        left: left,
        behavior: behavior
      });
    } else {
      el.scrollTop = top;
      el.scrollLeft = left;
    }
  });
}

function getOptions(options) {
  if (options === false) {
    return {
      block: 'end',
      inline: 'nearest'
    };
  }

  if (isOptionsObject(options)) {
    return options;
  }

  return {
    block: 'start',
    inline: 'nearest'
  };
}

function scrollIntoView(target, options) {
  var targetIsDetached = !target.ownerDocument.documentElement.contains(target);

  if (isOptionsObject(options) && typeof options.behavior === 'function') {
    return options.behavior(targetIsDetached ? [] : (0, _computeScrollIntoView.default)(target, options));
  }

  if (targetIsDetached) {
    return;
  }

  var computeOptions = getOptions(options);
  return defaultBehavior((0, _computeScrollIntoView.default)(target, computeOptions), computeOptions.behavior);
}

var _default = scrollIntoView;
exports.default = _default;
module.exports = exports.default;
},{"compute-scroll-into-view":10}],82:[function(require,module,exports){
"use strict";

exports.__esModule = true;
exports.default = void 0;

var _scrollIntoViewIfNeeded = _interopRequireDefault(require("scroll-into-view-if-needed"));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var memoizedNow;

var now = function now() {
  if (!memoizedNow) {
    memoizedNow = 'performance' in window ? performance.now.bind(performance) : Date.now;
  }

  return memoizedNow();
};

function step(context) {
  var time = now();
  var elapsed = Math.min((time - context.startTime) / context.duration, 1);
  var value = context.ease(elapsed);
  var currentX = context.startX + (context.x - context.startX) * value;
  var currentY = context.startY + (context.y - context.startY) * value;
  context.method(currentX, currentY);

  if (currentX !== context.x || currentY !== context.y) {
    requestAnimationFrame(function () {
      return step(context);
    });
  } else {
    context.cb();
  }
}

function smoothScroll(el, x, y, duration, ease, cb) {
  if (duration === void 0) {
    duration = 600;
  }

  if (ease === void 0) {
    ease = function ease(t) {
      return 1 + --t * t * t * t * t;
    };
  }

  var scrollable;
  var startX;
  var startY;
  var method;
  scrollable = el;
  startX = el.scrollLeft;
  startY = el.scrollTop;

  method = function method(x, y) {
    el.scrollLeft = x;
    el.scrollTop = y;
  };

  step({
    scrollable: scrollable,
    method: method,
    startTime: now(),
    startX: startX,
    startY: startY,
    x: x,
    y: y,
    duration: duration,
    ease: ease,
    cb: cb
  });
}

var shouldSmoothScroll = function shouldSmoothScroll(options) {
  return options && !options.behavior || options.behavior === 'smooth';
};

function scroll(target, options) {
  var overrides = options || {};

  if (shouldSmoothScroll(overrides)) {
    return (0, _scrollIntoViewIfNeeded.default)(target, {
      block: overrides.block,
      inline: overrides.inline,
      scrollMode: overrides.scrollMode,
      boundary: overrides.boundary,
      behavior: function behavior(actions) {
        return Promise.all(actions.reduce(function (results, _ref) {
          var el = _ref.el,
              left = _ref.left,
              top = _ref.top;
          var startLeft = el.scrollLeft;
          var startTop = el.scrollTop;

          if (startLeft === left && startTop === top) {
            return results;
          }

          return results.concat([new Promise(function (resolve) {
            return smoothScroll(el, left, top, overrides.duration, overrides.ease, function () {
              return resolve({
                el: el,
                left: [startLeft, left],
                top: [startTop, top]
              });
            });
          })]);
        }, []));
      }
    });
  }

  return Promise.resolve((0, _scrollIntoViewIfNeeded.default)(target, options));
}

var smoothScrollIntoView = scroll;
var _default = smoothScrollIntoView;
exports.default = _default;
module.exports = exports.default;
},{"scroll-into-view-if-needed":81}],83:[function(require,module,exports){
(function (process){
'use strict';

var isProduction = process.env.NODE_ENV === 'production';
var prefix = 'Invariant failed';
function invariant(condition, message) {
  if (condition) {
    return;
  }

  if (isProduction) {
    throw new Error(prefix);
  } else {
    throw new Error(prefix + ": " + (message || ''));
  }
}

module.exports = invariant;

}).call(this,require('_process'))
},{"_process":24}],84:[function(require,module,exports){
(function (process){
'use strict';

var isProduction = process.env.NODE_ENV === 'production';
function warning(condition, message) {
  if (!isProduction) {
    if (condition) {
      return;
    }

    var text = "Warning: " + message;

    if (typeof console !== 'undefined') {
      console.warn(text);
    }

    try {
      throw Error(text);
    } catch (x) {}
  }
}

module.exports = warning;

}).call(this,require('_process'))
},{"_process":24}],85:[function(require,module,exports){

var space = require('to-space-case')

/**
 * Export.
 */

module.exports = toCamelCase

/**
 * Convert a `string` to camel case.
 *
 * @param {String} string
 * @return {String}
 */

function toCamelCase(string) {
  return space(string).replace(/\s(\w)/g, function (matches, letter) {
    return letter.toUpperCase()
  })
}

},{"to-space-case":87}],86:[function(require,module,exports){

/**
 * Export.
 */

module.exports = toNoCase

/**
 * Test whether a string is camel-case.
 */

var hasSpace = /\s/
var hasSeparator = /(_|-|\.|:)/
var hasCamel = /([a-z][A-Z]|[A-Z][a-z])/

/**
 * Remove any starting case from a `string`, like camel or snake, but keep
 * spaces and punctuation that may be important otherwise.
 *
 * @param {String} string
 * @return {String}
 */

function toNoCase(string) {
  if (hasSpace.test(string)) return string.toLowerCase()
  if (hasSeparator.test(string)) return (unseparate(string) || string).toLowerCase()
  if (hasCamel.test(string)) return uncamelize(string).toLowerCase()
  return string.toLowerCase()
}

/**
 * Separator splitter.
 */

var separatorSplitter = /[\W_]+(.|$)/g

/**
 * Un-separate a `string`.
 *
 * @param {String} string
 * @return {String}
 */

function unseparate(string) {
  return string.replace(separatorSplitter, function (m, next) {
    return next ? ' ' + next : ''
  })
}

/**
 * Camelcase splitter.
 */

var camelSplitter = /(.)([A-Z]+)/g

/**
 * Un-camelcase a `string`.
 *
 * @param {String} string
 * @return {String}
 */

function uncamelize(string) {
  return string.replace(camelSplitter, function (m, previous, uppers) {
    return previous + ' ' + uppers.toLowerCase().split('').join(' ')
  })
}

},{}],87:[function(require,module,exports){

var clean = require('to-no-case')

/**
 * Export.
 */

module.exports = toSpaceCase

/**
 * Convert a `string` to space case.
 *
 * @param {String} string
 * @return {String}
 */

function toSpaceCase(string) {
  return clean(string).replace(/[\W_]+(.|$)/g, function (matches, match) {
    return match ? ' ' + match : ''
  }).trim()
}

},{"to-no-case":86}],88:[function(require,module,exports){
'use strict';

exports.__esModule = true;

var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };

function valueEqual(a, b) {
  if (a === b) return true;

  if (a == null || b == null) return false;

  if (Array.isArray(a)) {
    return Array.isArray(b) && a.length === b.length && a.every(function (item, index) {
      return valueEqual(item, b[index]);
    });
  }

  var aType = typeof a === 'undefined' ? 'undefined' : _typeof(a);
  var bType = typeof b === 'undefined' ? 'undefined' : _typeof(b);

  if (aType !== bType) return false;

  if (aType === 'object') {
    var aValue = a.valueOf();
    var bValue = b.valueOf();

    if (aValue !== a || bValue !== b) return valueEqual(aValue, bValue);

    var aKeys = Object.keys(a);
    var bKeys = Object.keys(b);

    if (aKeys.length !== bKeys.length) return false;

    return aKeys.every(function (key) {
      return valueEqual(a[key], b[key]);
    });
  }

  return false;
}

exports.default = valueEqual;
module.exports = exports['default'];
},{}],89:[function(require,module,exports){
(function (process){
/**
 * Copyright (c) 2014-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

'use strict';

/**
 * Similar to invariant but only logs a warning if the condition is not met.
 * This can be used to log issues in development environments in critical
 * paths. Removing the logging code for production environments will keep the
 * same logic and follow the same code paths.
 */

var __DEV__ = process.env.NODE_ENV !== 'production';

var warning = function() {};

if (__DEV__) {
  var printWarning = function printWarning(format, args) {
    var len = arguments.length;
    args = new Array(len > 1 ? len - 1 : 0);
    for (var key = 1; key < len; key++) {
      args[key - 1] = arguments[key];
    }
    var argIndex = 0;
    var message = 'Warning: ' +
      format.replace(/%s/g, function() {
        return args[argIndex++];
      });
    if (typeof console !== 'undefined') {
      console.error(message);
    }
    try {
      // --- Welcome to debugging React ---
      // This error was thrown as a convenience so that you can use this stack
      // to find the callsite that caused this warning to fire.
      throw new Error(message);
    } catch (x) {}
  }

  warning = function(condition, format, args) {
    var len = arguments.length;
    args = new Array(len > 2 ? len - 2 : 0);
    for (var key = 2; key < len; key++) {
      args[key - 2] = arguments[key];
    }
    if (format === undefined) {
      throw new Error(
          '`warning(condition, format, ...args)` requires a warning ' +
          'message argument'
      );
    }
    if (!condition) {
      printWarning.apply(null, [format].concat(args));
    }
  };
}

module.exports = warning;

}).call(this,require('_process'))
},{"_process":24}]},{},[1]);
