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/**
 * @license React
 * 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.
 */
(function (global, factory) {
  typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('react')) :
  typeof define === 'function' && define.amd ? define(['exports', 'react'], factory) :
  (global = global || self, factory(global.ReactDOM = {}, global.React));
}(this, (function (exports, React) { 'use strict';

  var ReactSharedInternals = React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED;

  var suppressWarning = false;
  function setSuppressWarning(newSuppressWarning) {
    {
      suppressWarning = newSuppressWarning;
    }
  } // In DEV, calls to console.warn and console.error get replaced
  // by calls to these methods by a Babel plugin.
  //
  // In PROD (or in packages without access to React internals),
  // they are left as they are instead.

  function warn(format) {
    {
      if (!suppressWarning) {
        for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
          args[_key - 1] = arguments[_key];
        }

        printWarning('warn', format, args);
      }
    }
  }
  function error(format) {
    {
      if (!suppressWarning) {
        for (var _len2 = arguments.length, args = new Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
          args[_key2 - 1] = arguments[_key2];
        }

        printWarning('error', format, args);
      }
    }
  }

  function printWarning(level, format, args) {
    // When changing this logic, you might want to also
    // update consoleWithStackDev.www.js as well.
    {
      var ReactDebugCurrentFrame = ReactSharedInternals.ReactDebugCurrentFrame;
      var stack = ReactDebugCurrentFrame.getStackAddendum();

      if (stack !== '') {
        format += '%s';
        args = args.concat([stack]);
      } // eslint-disable-next-line react-internal/safe-string-coercion


      var argsWithFormat = args.map(function (item) {
        return String(item);
      }); // Careful: RN currently depends on this prefix

      argsWithFormat.unshift('Warning: ' + format); // We intentionally don't use spread (or .apply) directly because it
      // breaks IE9: https://github.com/facebook/react/issues/13610
      // eslint-disable-next-line react-internal/no-production-logging

      Function.prototype.apply.call(console[level], console, argsWithFormat);
    }
  }

  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 DehydratedFragment = 18;
  var SuspenseListComponent = 19;
  var ScopeComponent = 21;
  var OffscreenComponent = 22;
  var LegacyHiddenComponent = 23;
  var CacheComponent = 24;
  var TracingMarkerComponent = 25;

  // -----------------------------------------------------------------------------

  var enableClientRenderFallbackOnTextMismatch = true; // TODO: Need to review this code one more time before landing
  // the react-reconciler package.

  var enableNewReconciler = false; // Support legacy Primer support on internal FB www

  var enableLazyContextPropagation = false; // FB-only usage. The new API has different semantics.

  var enableLegacyHidden = false; // Enables unstable_avoidThisFallback feature in Fiber

  var enableSuspenseAvoidThisFallback = false; // Enables unstable_avoidThisFallback feature in Fizz
  // React DOM Chopping Block
  //
  // Similar to main Chopping Block but only flags related to React DOM. These are
  // grouped because we will likely batch all of them into a single major release.
  // -----------------------------------------------------------------------------
  // Disable support for comment nodes as React DOM containers. Already disabled
  // in open source, but www codebase still relies on it. Need to remove.

  var disableCommentsAsDOMContainers = true; // Disable javascript: URL strings in href for XSS protection.
  // and client rendering, mostly to allow JSX attributes to apply to the custom
  // element's object properties instead of only HTML attributes.
  // https://github.com/facebook/react/issues/11347

  var enableCustomElementPropertySupport = false; // Disables children for <textarea> elements
  var warnAboutStringRefs = true; // -----------------------------------------------------------------------------
  // Debugging and DevTools
  // -----------------------------------------------------------------------------
  // Adds user timing marks for e.g. state updates, suspense, and work loop stuff,
  // for an experimental timeline tool.

  var enableSchedulingProfiler = true; // Helps identify side effects in render-phase lifecycle hooks and setState

  var enableProfilerTimer = true; // Record durations for commit and passive effects phases.

  var enableProfilerCommitHooks = true; // Phase param passed to onRender callback differentiates between an "update" and a "cascading-update".

  var allNativeEvents = new Set();
  /**
   * 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

  function registerTwoPhaseEvent(registrationName, dependencies) {
    registerDirectEvent(registrationName, dependencies);
    registerDirectEvent(registrationName + 'Capture', dependencies);
  }
  function registerDirectEvent(registrationName, dependencies) {
    {
      if (registrationNameDependencies[registrationName]) {
        error('EventRegistry: More than one plugin attempted to publish the same ' + 'registration name, `%s`.', registrationName);
      }
    }

    registrationNameDependencies[registrationName] = dependencies;

    {
      var lowerCasedName = registrationName.toLowerCase();
      possibleRegistrationNames[lowerCasedName] = registrationName;

      if (registrationName === 'onDoubleClick') {
        possibleRegistrationNames.ondblclick = registrationName;
      }
    }

    for (var i = 0; i < dependencies.length; i++) {
      allNativeEvents.add(dependencies[i]);
    }
  }

  var canUseDOM = !!(typeof window !== 'undefined' && typeof window.document !== 'undefined' && typeof window.document.createElement !== 'undefined');

  var hasOwnProperty = Object.prototype.hasOwnProperty;

  /*
   * The `'' + value` pattern (used in in perf-sensitive code) throws for Symbol
   * and Temporal.* types. See https://github.com/facebook/react/pull/22064.
   *
   * The functions in this module will throw an easier-to-understand,
   * easier-to-debug exception with a clear errors message message explaining the
   * problem. (Instead of a confusing exception thrown inside the implementation
   * of the `value` object).
   */
  // $FlowFixMe only called in DEV, so void return is not possible.
  function typeName(value) {
    {
      // toStringTag is needed for namespaced types like Temporal.Instant
      var hasToStringTag = typeof Symbol === 'function' && Symbol.toStringTag;
      var type = hasToStringTag && value[Symbol.toStringTag] || value.constructor.name || 'Object';
      return type;
    }
  } // $FlowFixMe only called in DEV, so void return is not possible.


  function willCoercionThrow(value) {
    {
      try {
        testStringCoercion(value);
        return false;
      } catch (e) {
        return true;
      }
    }
  }

  function testStringCoercion(value) {
    // If you ended up here by following an exception call stack, here's what's
    // happened: you supplied an object or symbol value to React (as a prop, key,
    // DOM attribute, CSS property, string ref, etc.) and when React tried to
    // coerce it to a string using `'' + value`, an exception was thrown.
    //
    // The most common types that will cause this exception are `Symbol` instances
    // and Temporal objects like `Temporal.Instant`. But any object that has a
    // `valueOf` or `[Symbol.toPrimitive]` method that throws will also cause this
    // exception. (Library authors do this to prevent users from using built-in
    // numeric operators like `+` or comparison operators like `>=` because custom
    // methods are needed to perform accurate arithmetic or comparison.)
    //
    // To fix the problem, coerce this object or symbol value to a string before
    // passing it to React. The most reliable way is usually `String(value)`.
    //
    // To find which value is throwing, check the browser or debugger console.
    // Before this exception was thrown, there should be `console.error` output
    // that shows the type (Symbol, Temporal.PlainDate, etc.) that caused the
    // problem and how that type was used: key, atrribute, input value prop, etc.
    // In most cases, this console output also shows the component and its
    // ancestor components where the exception happened.
    //
    // eslint-disable-next-line react-internal/safe-string-coercion
    return '' + value;
  }

  function checkAttributeStringCoercion(value, attributeName) {
    {
      if (willCoercionThrow(value)) {
        error('The provided `%s` attribute is an unsupported type %s.' + ' This value must be coerced to a string before before using it here.', attributeName, typeName(value));

        return testStringCoercion(value); // throw (to help callers find troubleshooting comments)
      }
    }
  }
  function checkKeyStringCoercion(value) {
    {
      if (willCoercionThrow(value)) {
        error('The provided key is an unsupported type %s.' + ' This value must be coerced to a string before before using it here.', typeName(value));

        return testStringCoercion(value); // throw (to help callers find troubleshooting comments)
      }
    }
  }
  function checkPropStringCoercion(value, propName) {
    {
      if (willCoercionThrow(value)) {
        error('The provided `%s` prop is an unsupported type %s.' + ' This value must be coerced to a string before before using it here.', propName, typeName(value));

        return testStringCoercion(value); // throw (to help callers find troubleshooting comments)
      }
    }
  }
  function checkCSSPropertyStringCoercion(value, propName) {
    {
      if (willCoercionThrow(value)) {
        error('The provided `%s` CSS property is an unsupported type %s.' + ' This value must be coerced to a string before before using it here.', propName, typeName(value));

        return testStringCoercion(value); // throw (to help callers find troubleshooting comments)
      }
    }
  }
  function checkHtmlStringCoercion(value) {
    {
      if (willCoercionThrow(value)) {
        error('The provided HTML markup uses a value of unsupported type %s.' + ' This value must be coerced to a string before before using it here.', typeName(value));

        return testStringCoercion(value); // throw (to help callers find troubleshooting comments)
      }
    }
  }
  function checkFormFieldValueStringCoercion(value) {
    {
      if (willCoercionThrow(value)) {
        error('Form field values (value, checked, defaultValue, or defaultChecked props)' + ' must be strings, not %s.' + ' This value must be coerced to a string before before using it here.', typeName(value));

        return testStringCoercion(value); // throw (to help callers find troubleshooting comments)
      }
    }
  }

  // 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 filter 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 VALID_ATTRIBUTE_NAME_REGEX = new RegExp('^[' + ATTRIBUTE_NAME_START_CHAR + '][' + ATTRIBUTE_NAME_CHAR + ']*$');
  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;

    {
      error('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, removeEmptyString) {
    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;
    this.removeEmptyString = removeEmptyString;
  } // 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.

  var reservedProps = ['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'];

  reservedProps.forEach(function (name) {
    properties[name] = new PropertyInfoRecord(name, RESERVED, false, // mustUseProperty
    name, // attributeName
    null, // attributeNamespace
    false, // sanitizeURL
    false);
  }); // 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
    false);
  }); // 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
    false);
  }); // 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
    false);
  }); // 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', 'disableRemotePlayback', '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
    false);
  }); // 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' // NOTE: if you add a camelCased prop to this list,
  // you'll need to set attributeName to name.toLowerCase()
  // instead in the assignment below.
  ].forEach(function (name) {
    properties[name] = new PropertyInfoRecord(name, BOOLEAN, true, // mustUseProperty
    name, // attributeName
    null, // attributeNamespace
    false, // sanitizeURL
    false);
  }); // These are HTML attributes that are "overloaded booleans": they behave like
  // booleans, but can also accept a string value.

  ['capture', 'download' // NOTE: if you add a camelCased prop to this list,
  // you'll need to set attributeName to name.toLowerCase()
  // instead in the assignment below.
  ].forEach(function (name) {
    properties[name] = new PropertyInfoRecord(name, OVERLOADED_BOOLEAN, false, // mustUseProperty
    name, // attributeName
    null, // attributeNamespace
    false, // sanitizeURL
    false);
  }); // These are HTML attributes that must be positive numbers.

  ['cols', 'rows', 'size', 'span' // NOTE: if you add a camelCased prop to this list,
  // you'll need to set attributeName to name.toLowerCase()
  // instead in the assignment below.
  ].forEach(function (name) {
    properties[name] = new PropertyInfoRecord(name, POSITIVE_NUMERIC, false, // mustUseProperty
    name, // attributeName
    null, // attributeNamespace
    false, // sanitizeURL
    false);
  }); // 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
    false);
  });
  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 attribute filter.
  // Some of these attributes can be hard to find. This list was created by
  // scraping 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' // NOTE: if you add a camelCased prop to this list,
  // you'll need to set attributeName to name.toLowerCase()
  // instead in the assignment below.
  ].forEach(function (attributeName) {
    var name = attributeName.replace(CAMELIZE, capitalize);
    properties[name] = new PropertyInfoRecord(name, STRING, false, // mustUseProperty
    attributeName, null, // attributeNamespace
    false, // sanitizeURL
    false);
  }); // String SVG attributes with the xlink namespace.

  ['xlink:actuate', 'xlink:arcrole', 'xlink:role', 'xlink:show', 'xlink:title', 'xlink:type' // NOTE: if you add a camelCased prop to this list,
  // you'll need to set attributeName to name.toLowerCase()
  // instead in the assignment below.
  ].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
    false);
  }); // String SVG attributes with the xml namespace.

  ['xml:base', 'xml:lang', 'xml:space' // NOTE: if you add a camelCased prop to this list,
  // you'll need to set attributeName to name.toLowerCase()
  // instead in the assignment below.
  ].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
    false);
  }); // 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
    false);
  }); // 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, // sanitizeURL
  false);
  ['src', 'href', 'action', 'formAction'].forEach(function (attributeName) {
    properties[attributeName] = new PropertyInfoRecord(attributeName, STRING, false, // mustUseProperty
    attributeName.toLowerCase(), // attributeName
    null, // attributeNamespace
    true, // sanitizeURL
    true);
  });

  // 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 (!didWarn && isJavaScriptProtocol.test(url)) {
        didWarn = true;

        error('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 {
        // This check protects multiple uses of `expected`, which is why the
        // react-internal/safe-string-coercion rule is disabled in several spots
        // below.
        {
          checkAttributeStringCoercion(expected, name);
        }

        if ( 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.
          // eslint-disable-next-line react-internal/safe-string-coercion
          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;
            } // eslint-disable-next-line react-internal/safe-string-coercion


            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; // eslint-disable-next-line react-internal/safe-string-coercion
        } 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, isCustomComponentTag) {
    {
      if (!isAttributeNameSafe(name)) {
        return;
      }

      if (!node.hasAttribute(name)) {
        return expected === undefined ? undefined : null;
      }

      var value = node.getAttribute(name);

      {
        checkAttributeStringCoercion(expected, 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 (isCustomComponentTag || propertyInfo === null) {
      if (isAttributeNameSafe(name)) {
        var _attributeName = name;

        if (value === null) {
          node.removeAttribute(_attributeName);
        } else {
          {
            checkAttributeStringCoercion(value, name);
          }

          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;

      if (_type === BOOLEAN || _type === OVERLOADED_BOOLEAN && value === true) {
        // If attribute type is boolean, we know for sure it won't be an execution sink
        // and we won't require Trusted Type here.
        attributeValue = '';
      } else {
        // `setAttribute` with objects becomes only `[object]` in IE8/9,
        // ('' + value) makes it output the correct toString()-value.
        {
          {
            checkAttributeStringCoercion(value, attributeName);
          }

          attributeValue = '' + value;
        }

        if (propertyInfo.sanitizeURL) {
          sanitizeURL(attributeValue.toString());
        }
      }

      if (attributeNamespace) {
        node.setAttributeNS(attributeNamespace, attributeName, attributeValue);
      } else {
        node.setAttribute(attributeName, attributeValue);
      }
    }
  }

  // ATTENTION
  // When adding new symbols to this file,
  // Please consider also adding to 'react-devtools-shared/src/backend/ReactSymbols'
  // The Symbol used to tag the ReactElement-like types.
  var REACT_ELEMENT_TYPE = Symbol.for('react.element');
  var REACT_PORTAL_TYPE = Symbol.for('react.portal');
  var REACT_FRAGMENT_TYPE = Symbol.for('react.fragment');
  var REACT_STRICT_MODE_TYPE = Symbol.for('react.strict_mode');
  var REACT_PROFILER_TYPE = Symbol.for('react.profiler');
  var REACT_PROVIDER_TYPE = Symbol.for('react.provider');
  var REACT_CONTEXT_TYPE = Symbol.for('react.context');
  var REACT_FORWARD_REF_TYPE = Symbol.for('react.forward_ref');
  var REACT_SUSPENSE_TYPE = Symbol.for('react.suspense');
  var REACT_SUSPENSE_LIST_TYPE = Symbol.for('react.suspense_list');
  var REACT_MEMO_TYPE = Symbol.for('react.memo');
  var REACT_LAZY_TYPE = Symbol.for('react.lazy');
  var REACT_SCOPE_TYPE = Symbol.for('react.scope');
  var REACT_DEBUG_TRACING_MODE_TYPE = Symbol.for('react.debug_trace_mode');
  var REACT_OFFSCREEN_TYPE = Symbol.for('react.offscreen');
  var REACT_LEGACY_HIDDEN_TYPE = Symbol.for('react.legacy_hidden');
  var REACT_CACHE_TYPE = Symbol.for('react.cache');
  var REACT_TRACING_MARKER_TYPE = Symbol.for('react.tracing_marker');
  var MAYBE_ITERATOR_SYMBOL = 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 assign = Object.assign;

  // Helpers to patch console.logs to avoid logging during side-effect free
  // replaying on render function. This currently only patches the object
  // lazily which won't cover if the log function was extracted eagerly.
  // We could also eagerly patch the method.
  var disabledDepth = 0;
  var prevLog;
  var prevInfo;
  var prevWarn;
  var prevError;
  var prevGroup;
  var prevGroupCollapsed;
  var prevGroupEnd;

  function disabledLog() {}

  disabledLog.__reactDisabledLog = true;
  function disableLogs() {
    {
      if (disabledDepth === 0) {
        /* eslint-disable react-internal/no-production-logging */
        prevLog = console.log;
        prevInfo = console.info;
        prevWarn = console.warn;
        prevError = console.error;
        prevGroup = console.group;
        prevGroupCollapsed = console.groupCollapsed;
        prevGroupEnd = console.groupEnd; // https://github.com/facebook/react/issues/19099

        var props = {
          configurable: true,
          enumerable: true,
          value: disabledLog,
          writable: true
        }; // $FlowFixMe Flow thinks console is immutable.

        Object.defineProperties(console, {
          info: props,
          log: props,
          warn: props,
          error: props,
          group: props,
          groupCollapsed: props,
          groupEnd: props
        });
        /* eslint-enable react-internal/no-production-logging */
      }

      disabledDepth++;
    }
  }
  function reenableLogs() {
    {
      disabledDepth--;

      if (disabledDepth === 0) {
        /* eslint-disable react-internal/no-production-logging */
        var props = {
          configurable: true,
          enumerable: true,
          writable: true
        }; // $FlowFixMe Flow thinks console is immutable.

        Object.defineProperties(console, {
          log: assign({}, props, {
            value: prevLog
          }),
          info: assign({}, props, {
            value: prevInfo
          }),
          warn: assign({}, props, {
            value: prevWarn
          }),
          error: assign({}, props, {
            value: prevError
          }),
          group: assign({}, props, {
            value: prevGroup
          }),
          groupCollapsed: assign({}, props, {
            value: prevGroupCollapsed
          }),
          groupEnd: assign({}, props, {
            value: prevGroupEnd
          })
        });
        /* eslint-enable react-internal/no-production-logging */
      }

      if (disabledDepth < 0) {
        error('disabledDepth fell below zero. ' + 'This is a bug in React. Please file an issue.');
      }
    }
  }

  var ReactCurrentDispatcher = ReactSharedInternals.ReactCurrentDispatcher;
  var prefix;
  function describeBuiltInComponentFrame(name, source, ownerFn) {
    {
      if (prefix === undefined) {
        // Extract the VM specific prefix used by each line.
        try {
          throw Error();
        } catch (x) {
          var match = x.stack.trim().match(/\n( *(at )?)/);
          prefix = match && match[1] || '';
        }
      } // We use the prefix to ensure our stacks line up with native stack frames.


      return '\n' + prefix + name;
    }
  }
  var reentry = false;
  var componentFrameCache;

  {
    var PossiblyWeakMap = typeof WeakMap === 'function' ? WeakMap : Map;
    componentFrameCache = new PossiblyWeakMap();
  }

  function describeNativeComponentFrame(fn, construct) {
    // If something asked for a stack inside a fake render, it should get ignored.
    if ( !fn || reentry) {
      return '';
    }

    {
      var frame = componentFrameCache.get(fn);

      if (frame !== undefined) {
        return frame;
      }
    }

    var control;
    reentry = true;
    var previousPrepareStackTrace = Error.prepareStackTrace; // $FlowFixMe It does accept undefined.

    Error.prepareStackTrace = undefined;
    var previousDispatcher;

    {
      previousDispatcher = ReactCurrentDispatcher.current; // Set the dispatcher in DEV because this might be call in the render function
      // for warnings.

      ReactCurrentDispatcher.current = null;
      disableLogs();
    }

    try {
      // This should throw.
      if (construct) {
        // Something should be setting the props in the constructor.
        var Fake = function () {
          throw Error();
        }; // $FlowFixMe


        Object.defineProperty(Fake.prototype, 'props', {
          set: function () {
            // We use a throwing setter instead of frozen or non-writable props
            // because that won't throw in a non-strict mode function.
            throw Error();
          }
        });

        if (typeof Reflect === 'object' && Reflect.construct) {
          // We construct a different control for this case to include any extra
          // frames added by the construct call.
          try {
            Reflect.construct(Fake, []);
          } catch (x) {
            control = x;
          }

          Reflect.construct(fn, [], Fake);
        } else {
          try {
            Fake.call();
          } catch (x) {
            control = x;
          }

          fn.call(Fake.prototype);
        }
      } else {
        try {
          throw Error();
        } catch (x) {
          control = x;
        }

        fn();
      }
    } catch (sample) {
      // This is inlined manually because closure doesn't do it for us.
      if (sample && control && typeof sample.stack === 'string') {
        // This extracts the first frame from the sample that isn't also in the control.
        // Skipping one frame that we assume is the frame that calls the two.
        var sampleLines = sample.stack.split('\n');
        var controlLines = control.stack.split('\n');
        var s = sampleLines.length - 1;
        var c = controlLines.length - 1;

        while (s >= 1 && c >= 0 && sampleLines[s] !== controlLines[c]) {
          // We expect at least one stack frame to be shared.
          // Typically this will be the root most one. However, stack frames may be
          // cut off due to maximum stack limits. In this case, one maybe cut off
          // earlier than the other. We assume that the sample is longer or the same
          // and there for cut off earlier. So we should find the root most frame in
          // the sample somewhere in the control.
          c--;
        }

        for (; s >= 1 && c >= 0; s--, c--) {
          // Next we find the first one that isn't the same which should be the
          // frame that called our sample function and the control.
          if (sampleLines[s] !== controlLines[c]) {
            // In V8, the first line is describing the message but other VMs don't.
            // If we're about to return the first line, and the control is also on the same
            // line, that's a pretty good indicator that our sample threw at same line as
            // the control. I.e. before we entered the sample frame. So we ignore this result.
            // This can happen if you passed a class to function component, or non-function.
            if (s !== 1 || c !== 1) {
              do {
                s--;
                c--; // We may still have similar intermediate frames from the construct call.
                // The next one that isn't the same should be our match though.

                if (c < 0 || sampleLines[s] !== controlLines[c]) {
                  // V8 adds a "new" prefix for native classes. Let's remove it to make it prettier.
                  var _frame = '\n' + sampleLines[s].replace(' at new ', ' at '); // If our component frame is labeled "<anonymous>"
                  // but we have a user-provided "displayName"
                  // splice it in to make the stack more readable.


                  if (fn.displayName && _frame.includes('<anonymous>')) {
                    _frame = _frame.replace('<anonymous>', fn.displayName);
                  }

                  {
                    if (typeof fn === 'function') {
                      componentFrameCache.set(fn, _frame);
                    }
                  } // Return the line we found.


                  return _frame;
                }
              } while (s >= 1 && c >= 0);
            }

            break;
          }
        }
      }
    } finally {
      reentry = false;

      {
        ReactCurrentDispatcher.current = previousDispatcher;
        reenableLogs();
      }

      Error.prepareStackTrace = previousPrepareStackTrace;
    } // Fallback to just using the name if we couldn't make it throw.


    var name = fn ? fn.displayName || fn.name : '';
    var syntheticFrame = name ? describeBuiltInComponentFrame(name) : '';

    {
      if (typeof fn === 'function') {
        componentFrameCache.set(fn, syntheticFrame);
      }
    }

    return syntheticFrame;
  }

  function describeClassComponentFrame(ctor, source, ownerFn) {
    {
      return describeNativeComponentFrame(ctor, true);
    }
  }
  function describeFunctionComponentFrame(fn, source, ownerFn) {
    {
      return describeNativeComponentFrame(fn, false);
    }
  }

  function shouldConstruct(Component) {
    var prototype = Component.prototype;
    return !!(prototype && prototype.isReactComponent);
  }

  function describeUnknownElementTypeFrameInDEV(type, source, ownerFn) {

    if (type == null) {
      return '';
    }

    if (typeof type === 'function') {
      {
        return describeNativeComponentFrame(type, shouldConstruct(type));
      }
    }

    if (typeof type === 'string') {
      return describeBuiltInComponentFrame(type);
    }

    switch (type) {
      case REACT_SUSPENSE_TYPE:
        return describeBuiltInComponentFrame('Suspense');

      case REACT_SUSPENSE_LIST_TYPE:
        return describeBuiltInComponentFrame('SuspenseList');
    }

    if (typeof type === 'object') {
      switch (type.$$typeof) {
        case REACT_FORWARD_REF_TYPE:
          return describeFunctionComponentFrame(type.render);

        case REACT_MEMO_TYPE:
          // Memo may contain any component type so we recursively resolve it.
          return describeUnknownElementTypeFrameInDEV(type.type, source, ownerFn);

        case REACT_LAZY_TYPE:
          {
            var lazyComponent = type;
            var payload = lazyComponent._payload;
            var init = lazyComponent._init;

            try {
              // Lazy may contain any component type so we recursively resolve it.
              return describeUnknownElementTypeFrameInDEV(init(payload), source, ownerFn);
            } catch (x) {}
          }
      }
    }

    return '';
  }

  function describeFiber(fiber) {
    var owner =  fiber._debugOwner ? fiber._debugOwner.type : null ;
    var source =  fiber._debugSource ;

    switch (fiber.tag) {
      case HostComponent:
        return describeBuiltInComponentFrame(fiber.type);

      case LazyComponent:
        return describeBuiltInComponentFrame('Lazy');

      case SuspenseComponent:
        return describeBuiltInComponentFrame('Suspense');

      case SuspenseListComponent:
        return describeBuiltInComponentFrame('SuspenseList');

      case FunctionComponent:
      case IndeterminateComponent:
      case SimpleMemoComponent:
        return describeFunctionComponentFrame(fiber.type);

      case ForwardRef:
        return describeFunctionComponentFrame(fiber.type.render);

      case ClassComponent:
        return describeClassComponentFrame(fiber.type);

      default:
        return '';
    }
  }

  function getStackByFiberInDevAndProd(workInProgress) {
    try {
      var info = '';
      var node = workInProgress;

      do {
        info += describeFiber(node);
        node = node.return;
      } while (node);

      return info;
    } catch (x) {
      return '\nError generating stack: ' + x.message + '\n' + x.stack;
    }
  }

  function getWrappedName(outerType, innerType, wrapperName) {
    var displayName = outerType.displayName;

    if (displayName) {
      return displayName;
    }

    var functionName = innerType.displayName || innerType.name || '';
    return functionName !== '' ? wrapperName + "(" + functionName + ")" : wrapperName;
  } // Keep in sync with react-reconciler/getComponentNameFromFiber


  function getContextName(type) {
    return type.displayName || 'Context';
  } // Note that the reconciler package should generally prefer to use getComponentNameFromFiber() instead.


  function getComponentNameFromType(type) {
    if (type == null) {
      // Host root, text node or just invalid type.
      return null;
    }

    {
      if (typeof type.tag === 'number') {
        error('Received an unexpected object in getComponentNameFromType(). ' + '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:
          var context = type;
          return getContextName(context) + '.Consumer';

        case REACT_PROVIDER_TYPE:
          var provider = type;
          return getContextName(provider._context) + '.Provider';

        case REACT_FORWARD_REF_TYPE:
          return getWrappedName(type, type.render, 'ForwardRef');

        case REACT_MEMO_TYPE:
          var outerName = type.displayName || null;

          if (outerName !== null) {
            return outerName;
          }

          return getComponentNameFromType(type.type) || 'Memo';

        case REACT_LAZY_TYPE:
          {
            var lazyComponent = type;
            var payload = lazyComponent._payload;
            var init = lazyComponent._init;

            try {
              return getComponentNameFromType(init(payload));
            } catch (x) {
              return null;
            }
          }

        // eslint-disable-next-line no-fallthrough
      }
    }

    return null;
  }

  function getWrappedName$1(outerType, innerType, wrapperName) {
    var functionName = innerType.displayName || innerType.name || '';
    return outerType.displayName || (functionName !== '' ? wrapperName + "(" + functionName + ")" : wrapperName);
  } // Keep in sync with shared/getComponentNameFromType


  function getContextName$1(type) {
    return type.displayName || 'Context';
  }

  function getComponentNameFromFiber(fiber) {
    var tag = fiber.tag,
        type = fiber.type;

    switch (tag) {
      case CacheComponent:
        return 'Cache';

      case ContextConsumer:
        var context = type;
        return getContextName$1(context) + '.Consumer';

      case ContextProvider:
        var provider = type;
        return getContextName$1(provider._context) + '.Provider';

      case DehydratedFragment:
        return 'DehydratedFragment';

      case ForwardRef:
        return getWrappedName$1(type, type.render, 'ForwardRef');

      case Fragment:
        return 'Fragment';

      case HostComponent:
        // Host component type is the display name (e.g. "div", "View")
        return type;

      case HostPortal:
        return 'Portal';

      case HostRoot:
        return 'Root';

      case HostText:
        return 'Text';

      case LazyComponent:
        // Name comes from the type in this case; we don't have a tag.
        return getComponentNameFromType(type);

      case Mode:
        if (type === REACT_STRICT_MODE_TYPE) {
          // Don't be less specific than shared/getComponentNameFromType
          return 'StrictMode';
        }

        return 'Mode';

      case OffscreenComponent:
        return 'Offscreen';

      case Profiler:
        return 'Profiler';

      case ScopeComponent:
        return 'Scope';

      case SuspenseComponent:
        return 'Suspense';

      case SuspenseListComponent:
        return 'SuspenseList';

      case TracingMarkerComponent:
        return 'TracingMarker';
      // The display name for this tags come from the user-provided type:

      case ClassComponent:
      case FunctionComponent:
      case IncompleteClassComponent:
      case IndeterminateComponent:
      case MemoComponent:
      case SimpleMemoComponent:
        if (typeof type === 'function') {
          return type.displayName || type.name || null;
        }

        if (typeof type === 'string') {
          return type;
        }

        break;

    }

    return null;
  }

  var ReactDebugCurrentFrame = ReactSharedInternals.ReactDebugCurrentFrame;
  var current = null;
  var isRendering = false;
  function getCurrentFiberOwnerNameInDevOrNull() {
    {
      if (current === null) {
        return null;
      }

      var owner = current._debugOwner;

      if (owner !== null && typeof owner !== 'undefined') {
        return getComponentNameFromFiber(owner);
      }
    }

    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);
    }
  }

  function resetCurrentFiber() {
    {
      ReactDebugCurrentFrame.getCurrentStack = null;
      current = null;
      isRendering = false;
    }
  }
  function setCurrentFiber(fiber) {
    {
      ReactDebugCurrentFrame.getCurrentStack = fiber === null ? null : getCurrentFiberStackInDev;
      current = fiber;
      isRendering = false;
    }
  }
  function getCurrentFiber() {
    {
      return current;
    }
  }
  function setIsRendering(rendering) {
    {
      isRendering = rendering;
    }
  }

  // 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) {
    // The coercion safety check is performed in getToStringValue().
    // eslint-disable-next-line react-internal/safe-string-coercion
    return '' + value;
  }
  function getToStringValue(value) {
    switch (typeof value) {
      case 'boolean':
      case 'number':
      case 'string':
      case 'undefined':
        return value;

      case 'object':
        {
          checkFormFieldValueStringCoercion(value);
        }

        return value;

      default:
        // function, symbol are assigned as empty strings
        return '';
    }
  }

  var hasReadOnlyValue = {
    button: true,
    checkbox: true,
    image: true,
    hidden: true,
    radio: true,
    reset: true,
    submit: true
  };
  function checkControlledValueProps(tagName, props) {
    {
      if (!(hasReadOnlyValue[props.type] || props.onChange || props.onInput || props.readOnly || props.disabled || props.value == null)) {
        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`.');
      }

      if (!(props.onChange || props.readOnly || props.disabled || props.checked == null)) {
        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`.');
      }
    }
  }

  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);

    {
      checkFormFieldValueStringCoercion(node[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) {
        {
          checkFormFieldValueStringCoercion(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) {
        {
          checkFormFieldValueStringCoercion(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;
  }

  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;
    }
  }

  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) {
    {
      checkControlledValueProps('input', props);

      if (props.checked !== undefined && props.defaultChecked !== undefined && !didWarnCheckedDefaultChecked) {
        error('%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://reactjs.org/link/controlled-components', getCurrentFiberOwnerNameInDevOrNull() || 'A component', props.type);

        didWarnCheckedDefaultChecked = true;
      }

      if (props.value !== undefined && props.defaultValue !== undefined && !didWarnValueDefaultValue) {
        error('%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://reactjs.org/link/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) {
        error('A component is changing an uncontrolled input to be controlled. ' + 'This is likely caused by the value changing from undefined to ' + 'a defined value, which should not happen. ' + 'Decide between using a controlled or uncontrolled input ' + 'element for the lifetime of the component. More info: https://reactjs.org/link/controlled-components');

        didWarnUncontrolledToControlled = true;
      }

      if (node._wrapperState.controlled && !controlled && !didWarnControlledToUncontrolled) {
        error('A component is changing a controlled input to be uncontrolled. ' + 'This is likely caused by the value changing from a defined to ' + 'undefined, which should not happen. ' + 'Decide between using a controlled or uncontrolled input ' + 'element for the lifetime of the component. More info: https://reactjs.org/link/controlled-components');

        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;
    }

    {
      // 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));
      }
    }

    {
      // 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) {
        {
          // 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;
          }
        }
      }

      {
        // 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 = '';
    }

    {
      // 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.


      {
        checkAttributeStringCoercion(name, 'name');
      }

      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(otherNode);

        if (!otherProps) {
          throw new 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' || getActiveElement(node.ownerDocument) !== node) {
      if (value == null) {
        node.defaultValue = toString(node._wrapperState.initialValue);
      } else if (node.defaultValue !== toString(value)) {
        node.defaultValue = toString(value);
      }
    }
  }

  var didWarnSelectedSetOnOption = false;
  var didWarnInvalidChild = false;
  var didWarnInvalidInnerHTML = false;
  /**
   * Implements an <option> host component that warns when `selected` is set.
   */

  function validateProps(element, props) {
    {
      // If a value is not provided, then the children must be simple.
      if (props.value == null) {
        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 (!didWarnInvalidChild) {
              didWarnInvalidChild = true;

              error('Cannot infer the option value of complex children. ' + 'Pass a `value` prop or use a plain string as children to <option>.');
            }
          });
        } else if (props.dangerouslySetInnerHTML != null) {
          if (!didWarnInvalidInnerHTML) {
            didWarnInvalidInnerHTML = true;

            error('Pass a `value` prop if you set dangerouslyInnerHTML so React knows ' + 'which value should be selected.');
          }
        }
      } // TODO: Remove support for `selected` in <option>.


      if (props.selected != null && !didWarnSelectedSetOnOption) {
        error('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)));
    }
  }

  var isArrayImpl = Array.isArray; // eslint-disable-next-line no-redeclare

  function isArray(a) {
    return isArrayImpl(a);
  }

  var didWarnValueDefaultValue$1;

  {
    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) {
    {
      checkControlledValueProps('select', props);

      for (var i = 0; i < valuePropNames.length; i++) {
        var propName = valuePropNames[i];

        if (props[propName] == null) {
          continue;
        }

        var propNameIsArray = isArray(props[propName]);

        if (props.multiple && !propNameIsArray) {
          error('The `%s` prop supplied to <select> must be an array if ' + '`multiple` is true.%s', propName, getDeclarationErrorAddendum());
        } else if (!props.multiple && propNameIsArray) {
          error('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$1(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) {
        error('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://reactjs.org/link/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$1(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$2(element, props) {
    var node = element;

    if (props.dangerouslySetInnerHTML != null) {
      throw new 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;

    {
      checkControlledValueProps('textarea', props);

      if (props.value !== undefined && props.defaultValue !== undefined && !didWarnValDefaultVal) {
        error('%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://reactjs.org/link/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 children = props.children,
          defaultValue = props.defaultValue;

      if (children != null) {
        {
          error('Use the `defaultValue` or `value` props instead of setting ' + 'children on <textarea>.');
        }

        {
          if (defaultValue != null) {
            throw new Error('If you supply `defaultValue` on a <textarea>, do not pass children.');
          }

          if (isArray(children)) {
            if (children.length > 1) {
              throw new 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) {
      if (textContent !== '' && textContent !== null) {
        node.value = textContent;
      }
    }
  }
  function restoreControlledState$2(element, props) {
    // DOM component is still mounted; update
    updateWrapper$1(element, props);
  }

  var HTML_NAMESPACE = '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'; // 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;
    }
  }
  function getChildNamespace(parentNamespace, type) {
    if (parentNamespace == null || parentNamespace === HTML_NAMESPACE) {
      // No (or default) parent namespace: potential entry point.
      return getIntrinsicNamespace(type);
    }

    if (parentNamespace === SVG_NAMESPACE && type === 'foreignObject') {
      // We're leaving SVG.
      return HTML_NAMESPACE;
    } // 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;
    }
  };

  var reusableSVGContainer;
  /**
   * Set the innerHTML property of a node
   *
   * @param {DOMElement} node
   * @param {string} html
   * @internal
   */

  var setInnerHTML = createMicrosoftUnsafeLocalFunction(function (node, html) {
    if (node.namespaceURI === SVG_NAMESPACE) {

      if (!('innerHTML' in node)) {
        // 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
        reusableSVGContainer = reusableSVGContainer || document.createElement('div');
        reusableSVGContainer.innerHTML = '<svg>' + html.valueOf().toString() + '</svg>';
        var svgNode = reusableSVGContainer.firstChild;

        while (node.firstChild) {
          node.removeChild(node.firstChild);
        }

        while (svgNode.firstChild) {
          node.appendChild(svgNode.firstChild);
        }

        return;
      }
    }

    node.innerHTML = html;
  });

  /**
   * 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;

  /**
   * 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,
    aspectRatio: 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
    }

    {
      checkCSSPropertyStringCoercion(value, name);
    }

    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;

      error('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;

      error('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;

      error("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;

      error('`NaN` is an invalid value for the `%s` css style property.', name);
    };

    var warnStyleValueIsInfinity = function (name, value) {
      if (warnedForInfinityValue) {
        return;
      }

      warnedForInfinityValue = true;

      error('`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 (!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;

          error('%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 list 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.

  };

  // `omittedCloseTags` except that `menuitem` should still have its closing tag.

  var voidElementTags = assign({
    menuitem: true
  }, omittedCloseTags);

  var HTML = '__html';

  function assertValidProps(tag, props) {
    if (!props) {
      return;
    } // Note the use of `==` which checks for null or undefined.


    if (voidElementTags[tag]) {
      if (props.children != null || props.dangerouslySetInnerHTML != null) {
        throw new Error(tag + " is a void element tag and must neither have `children` nor " + 'use `dangerouslySetInnerHTML`.');
      }
    }

    if (props.dangerouslySetInnerHTML != null) {
      if (props.children != null) {
        throw new Error('Can only set one of `children` or `props.dangerouslySetInnerHTML`.');
      }

      if (typeof props.dangerouslySetInnerHTML !== 'object' || !(HTML in props.dangerouslySetInnerHTML)) {
        throw new Error('`props.dangerouslySetInnerHTML` must be in the form `{__html: ...}`. ' + 'Please visit https://reactjs.org/link/dangerously-set-inner-html ' + 'for more information.');
      }
    }

    {
      if (!props.suppressContentEditableWarning && props.contentEditable && props.children != null) {
        error('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.');
      }
    }

    if (props.style != null && typeof props.style !== 'object') {
      throw new Error('The `style` prop expects a mapping from style properties to values, ' + "not a string. For example, style={{marginRight: spacing + 'em'}} when " + 'using JSX.');
    }
  }

  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 list 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 allowed attribute list, 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',
    disableremoteplayback: 'disableRemotePlayback',
    download: 'download',
    draggable: 'draggable',
    enctype: 'encType',
    enterkeyhint: 'enterKeyHint',
    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',
    imagesizes: 'imageSizes',
    imagesrcset: 'imageSrcSet',
    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-description': 0,
    '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 + ']*$');
  var rARIACamel = new RegExp('^(aria)[A-Z][' + ATTRIBUTE_NAME_CHAR + ']*$');

  function validateProperty(tagName, name) {
    {
      if (hasOwnProperty.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) {
          error('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) {
          error('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) {
          error('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) {
        error('Invalid aria prop %s on <%s> tag. ' + 'For details, see https://reactjs.org/link/invalid-aria-props', unknownPropString, type);
      } else if (invalidProps.length > 1) {
        error('Invalid aria props %s on <%s> tag. ' + 'For details, see https://reactjs.org/link/invalid-aria-props', 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) {
          error('`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 {
          error('`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 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, eventRegistry) {
      if (hasOwnProperty.call(warnedProperties$1, name) && warnedProperties$1[name]) {
        return true;
      }

      var lowerCasedName = name.toLowerCase();

      if (lowerCasedName === 'onfocusin' || lowerCasedName === 'onfocusout') {
        error('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 (eventRegistry != null) {
        var registrationNameDependencies = eventRegistry.registrationNameDependencies,
            possibleRegistrationNames = eventRegistry.possibleRegistrationNames;

        if (registrationNameDependencies.hasOwnProperty(name)) {
          return true;
        }

        var registrationName = possibleRegistrationNames.hasOwnProperty(lowerCasedName) ? possibleRegistrationNames[lowerCasedName] : null;

        if (registrationName != null) {
          error('Invalid event handler property `%s`. Did you mean `%s`?', name, registrationName);

          warnedProperties$1[name] = true;
          return true;
        }

        if (EVENT_NAME_REGEX.test(name)) {
          error('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)) {
          error('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') {
        error('Directly setting property `innerHTML` is not permitted. ' + 'For more information, lookup documentation on `dangerouslySetInnerHTML`.');

        warnedProperties$1[name] = true;
        return true;
      }

      if (lowerCasedName === 'aria') {
        error('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') {
        error('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)) {
        error('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) {
          error('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.
        error('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) {
          error('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 {
          error('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) {
        error('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, eventRegistry) {
    {
      var unknownProps = [];

      for (var key in props) {
        var isValid = validateProperty$1(type, key, props[key], eventRegistry);

        if (!isValid) {
          unknownProps.push(key);
        }
      }

      var unknownPropString = unknownProps.map(function (prop) {
        return '`' + prop + '`';
      }).join(', ');

      if (unknownProps.length === 1) {
        error('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://reactjs.org/link/attribute-behavior ', unknownPropString, type);
      } else if (unknownProps.length > 1) {
        error('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://reactjs.org/link/attribute-behavior ', unknownPropString, type);
      }
    }
  };

  function validateProperties$2(type, props, eventRegistry) {
    if (isCustomComponent(type, props)) {
      return;
    }

    warnUnknownProperties(type, props, eventRegistry);
  }

  var IS_EVENT_HANDLE_NON_MANAGED_NODE = 1;
  var IS_NON_DELEGATED = 1 << 1;
  var IS_CAPTURE_PHASE = 1 << 2;
  // set to LEGACY_FB_SUPPORT. LEGACY_FB_SUPPORT only gets set when
  // we call willDeferLaterForLegacyFBSupport, thus not bailing out
  // will result in endless cycles like an infinite loop.
  // We also don't want to defer during event replaying.

  var SHOULD_NOT_PROCESS_POLYFILL_EVENT_PLUGINS = IS_EVENT_HANDLE_NON_MANAGED_NODE | IS_NON_DELEGATED | IS_CAPTURE_PHASE;

  // This exists to avoid circular dependency between ReactDOMEventReplaying
  // and DOMPluginEventSystem.
  var currentReplayingEvent = null;
  function setReplayingEvent(event) {
    {
      if (currentReplayingEvent !== null) {
        error('Expected currently replaying event to be null. This error ' + 'is likely caused by a bug in React. Please file an issue.');
      }
    }

    currentReplayingEvent = event;
  }
  function resetReplayingEvent() {
    {
      if (currentReplayingEvent === null) {
        error('Expected currently replaying event to not be null. This error ' + 'is likely caused by a bug in React. Please file an issue.');
      }
    }

    currentReplayingEvent = null;
  }
  function isReplayingEvent(event) {
    return event === currentReplayingEvent;
  }

  /**
   * 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;
  }

  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;
    }

    if (typeof restoreImpl !== 'function') {
      throw new 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 stateNode = internalInstance.stateNode; // Guard against Fiber being unmounted.

    if (stateNode) {
      var _props = getFiberCurrentPropsFromNode(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]);
      }
    }
  }

  // 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 flushSyncImpl = function () {};

  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.
      // TODO: Restore state in the microtask, after the discrete updates flush,
      // instead of early flushing them here.
      flushSyncImpl();
      restoreStateIfNeeded();
    }
  }

  function batchedUpdates(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 batchedUpdatesImpl(fn, a, b);
    } finally {
      isInsideEventHandler = false;
      finishEventHandler();
    }
  } // TODO: Replace with flushSync
  function setBatchingImplementation(_batchedUpdatesImpl, _discreteUpdatesImpl, _flushSyncImpl) {
    batchedUpdatesImpl = _batchedUpdatesImpl;
    flushSyncImpl = _flushSyncImpl;
  }

  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':
      case 'onMouseEnter':
        return !!(props.disabled && isInteractive(type));

      default:
        return false;
    }
  }
  /**
   * @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 stateNode = inst.stateNode;

    if (stateNode === null) {
      // Work in progress (ex: onload events in incremental mode).
      return null;
    }

    var props = getFiberCurrentPropsFromNode(stateNode);

    if (props === null) {
      // Work in progress.
      return null;
    }

    var listener = props[registrationName];

    if (shouldPreventMouseEvent(registrationName, inst.type, props)) {
      return null;
    }

    if (listener && typeof listener !== 'function') {
      throw new Error("Expected `" + registrationName + "` listener to be a function, instead got a value of `" + typeof listener + "` type.");
    }

    return listener;
  }

  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 (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;
    }
  }

  function invokeGuardedCallbackProd(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);
    }
  }

  var invokeGuardedCallbackImpl = invokeGuardedCallbackProd;

  {
    // 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');

      invokeGuardedCallbackImpl = function invokeGuardedCallbackDev(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/facebook/create-react-app/issues/3482
        // So we preemptively throw with a better message instead.
        if (typeof document === 'undefined' || document === null) {
          throw new 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');
        var didCall = false; // 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');

        function restoreAfterDispatch() {
          // 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;
          }
        } // 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() {
          didCall = true;
          restoreAfterDispatch();
          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; // 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 (didCall && didError) {
          if (!didSetError) {
            // The callback errored, but the error event never fired.
            // eslint-disable-next-line react-internal/prod-error-codes
            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) {
            // eslint-disable-next-line react-internal/prod-error-codes
            error = new Error("A cross-origin error was thrown. React doesn't have access to " + 'the actual error object in development. ' + 'See https://reactjs.org/link/crossorigin-error for more information.');
          }

          this.onError(error);
        } // Remove our event listeners


        window.removeEventListener('error', handleWindowError);

        if (!didCall) {
          // Something went really wrong, and our event was not dispatched.
          // https://github.com/facebook/react/issues/16734
          // https://github.com/facebook/react/issues/16585
          // Fall back to the production implementation.
          restoreAfterDispatch();
          return invokeGuardedCallbackProd.apply(this, arguments);
        }
      };
    }
  }

  var invokeGuardedCallbackImpl$1 = invokeGuardedCallbackImpl;

  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 {
      throw new Error('clearCaughtError was called but no error was captured. This error ' + 'is likely caused by a bug in React. Please file an issue.');
    }
  }

  var ReactInternals = React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED;
  var _ReactInternals$Sched = ReactInternals.Scheduler,
      unstable_cancelCallback = _ReactInternals$Sched.unstable_cancelCallback,
      unstable_now = _ReactInternals$Sched.unstable_now,
      unstable_scheduleCallback = _ReactInternals$Sched.unstable_scheduleCallback,
      unstable_shouldYield = _ReactInternals$Sched.unstable_shouldYield,
      unstable_requestPaint = _ReactInternals$Sched.unstable_requestPaint,
      unstable_getFirstCallbackNode = _ReactInternals$Sched.unstable_getFirstCallbackNode,
      unstable_runWithPriority = _ReactInternals$Sched.unstable_runWithPriority,
      unstable_next = _ReactInternals$Sched.unstable_next,
      unstable_continueExecution = _ReactInternals$Sched.unstable_continueExecution,
      unstable_pauseExecution = _ReactInternals$Sched.unstable_pauseExecution,
      unstable_getCurrentPriorityLevel = _ReactInternals$Sched.unstable_getCurrentPriorityLevel,
      unstable_ImmediatePriority = _ReactInternals$Sched.unstable_ImmediatePriority,
      unstable_UserBlockingPriority = _ReactInternals$Sched.unstable_UserBlockingPriority,
      unstable_NormalPriority = _ReactInternals$Sched.unstable_NormalPriority,
      unstable_LowPriority = _ReactInternals$Sched.unstable_LowPriority,
      unstable_IdlePriority = _ReactInternals$Sched.unstable_IdlePriority,
      unstable_forceFrameRate = _ReactInternals$Sched.unstable_forceFrameRate,
      unstable_flushAllWithoutAsserting = _ReactInternals$Sched.unstable_flushAllWithoutAsserting,
      unstable_yieldValue = _ReactInternals$Sched.unstable_yieldValue,
      unstable_setDisableYieldValue = _ReactInternals$Sched.unstable_setDisableYieldValue;

  /**
   * `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.
   */
  function get(key) {
    return key._reactInternals;
  }
  function has(key) {
    return key._reactInternals !== undefined;
  }
  function set(key, value) {
    key._reactInternals = value;
  }

  // Don't change these two values. They're used by React Dev Tools.
  var NoFlags =
  /*                      */
  0;
  var PerformedWork =
  /*                */
  1; // You can change the rest (and add more).

  var Placement =
  /*                    */
  2;
  var Update =
  /*                       */
  4;
  var ChildDeletion =
  /*                */
  16;
  var ContentReset =
  /*                 */
  32;
  var Callback =
  /*                     */
  64;
  var DidCapture =
  /*                   */
  128;
  var ForceClientRender =
  /*            */
  256;
  var Ref =
  /*                          */
  512;
  var Snapshot =
  /*                     */
  1024;
  var Passive =
  /*                      */
  2048;
  var Hydrating =
  /*                    */
  4096;
  var Visibility =
  /*                   */
  8192;
  var StoreConsistency =
  /*             */
  16384;
  var LifecycleEffectMask = Passive | Update | Callback | Ref | Snapshot | StoreConsistency; // Union of all commit flags (flags with the lifetime of a particular commit)

  var HostEffectMask =
  /*               */
  32767; // These are not really side effects, but we still reuse this field.

  var Incomplete =
  /*                   */
  32768;
  var ShouldCapture =
  /*                */
  65536;
  var ForceUpdateForLegacySuspense =
  /* */
  131072;
  var Forked =
  /*                       */
  1048576; // Static tags describe aspects of a fiber that are not specific to a render,
  // e.g. a fiber uses a passive effect (even if there are no updates on this particular render).
  // This enables us to defer more work in the unmount case,
  // since we can defer traversing the tree during layout to look for Passive effects,
  // and instead rely on the static flag as a signal that there may be cleanup work.

  var RefStatic =
  /*                    */
  2097152;
  var LayoutStatic =
  /*                 */
  4194304;
  var PassiveStatic =
  /*                */
  8388608; // These flags allow us to traverse to fibers that have effects on mount
  // without traversing the entire tree after every commit for
  // double invoking

  var MountLayoutDev =
  /*               */
  16777216;
  var MountPassiveDev =
  /*              */
  33554432; // Groups of flags that are used in the commit phase to skip over trees that
  // don't contain effects, by checking subtreeFlags.

  var BeforeMutationMask = // TODO: Remove Update flag from before mutation phase by re-landing Visibility
  // flag logic (see #20043)
  Update | Snapshot | ( 0);
  var MutationMask = Placement | Update | ChildDeletion | ContentReset | Ref | Hydrating | Visibility;
  var LayoutMask = Update | Callback | Ref | Visibility; // TODO: Split into PassiveMountMask and PassiveUnmountMask

  var PassiveMask = Passive | ChildDeletion; // Union of tags that don't get reset on clones.
  // This allows certain concepts to persist without recalculating them,
  // e.g. whether a subtree contains passive effects or portals.

  var StaticMask = LayoutStatic | PassiveStatic | RefStatic;

  var ReactCurrentOwner = ReactSharedInternals.ReactCurrentOwner;
  function getNearestMountedFiber(fiber) {
    var node = fiber;
    var nearestMounted = 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.
      var nextNode = node;

      do {
        node = nextNode;

        if ((node.flags & (Placement | Hydrating)) !== NoFlags) {
          // This is an insertion or in-progress hydration. The nearest possible
          // mounted fiber is the parent but we need to continue to figure out
          // if that one is still mounted.
          nearestMounted = node.return;
        }

        nextNode = node.return;
      } while (nextNode);
    } else {
      while (node.return) {
        node = node.return;
      }
    }

    if (node.tag === HostRoot) {
      // TODO: Check if this was a nested HostRoot when used with
      // renderContainerIntoSubtree.
      return nearestMounted;
    } // If we didn't hit the root, that means that we're in an disconnected tree
    // that has been unmounted.


    return null;
  }
  function getSuspenseInstanceFromFiber(fiber) {
    if (fiber.tag === SuspenseComponent) {
      var suspenseState = fiber.memoizedState;

      if (suspenseState === null) {
        var current = fiber.alternate;

        if (current !== null) {
          suspenseState = current.memoizedState;
        }
      }

      if (suspenseState !== null) {
        return suspenseState.dehydrated;
      }
    }

    return null;
  }
  function getContainerFromFiber(fiber) {
    return fiber.tag === HostRoot ? fiber.stateNode.containerInfo : null;
  }
  function isFiberMounted(fiber) {
    return getNearestMountedFiber(fiber) === fiber;
  }
  function isMounted(component) {
    {
      var owner = ReactCurrentOwner.current;

      if (owner !== null && owner.tag === ClassComponent) {
        var ownerFiber = owner;
        var instance = ownerFiber.stateNode;

        if (!instance._warnedAboutRefsInRender) {
          error('%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.', getComponentNameFromFiber(ownerFiber) || 'A component');
        }

        instance._warnedAboutRefsInRender = true;
      }
    }

    var fiber = get(component);

    if (!fiber) {
      return false;
    }

    return getNearestMountedFiber(fiber) === fiber;
  }

  function assertIsMounted(fiber) {
    if (getNearestMountedFiber(fiber) !== fiber) {
      throw new 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 nearestMounted = getNearestMountedFiber(fiber);

      if (nearestMounted === null) {
        throw new Error('Unable to find node on an unmounted component.');
      }

      if (nearestMounted !== fiber) {
        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.


        throw new 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;
          }

          if (!didFindChild) {
            throw new Error('Child was not found in either parent set. This indicates a bug ' + 'in React related to the return pointer. Please file an issue.');
          }
        }
      }

      if (a.alternate !== b) {
        throw new 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.


    if (a.tag !== HostRoot) {
      throw new 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);
    return currentParent !== null ? findCurrentHostFiberImpl(currentParent) : null;
  }

  function findCurrentHostFiberImpl(node) {
    // Next we'll drill down this component to find the first HostComponent/Text.
    if (node.tag === HostComponent || node.tag === HostText) {
      return node;
    }

    var child = node.child;

    while (child !== null) {
      var match = findCurrentHostFiberImpl(child);

      if (match !== null) {
        return match;
      }

      child = child.sibling;
    }

    return null;
  }

  function findCurrentHostFiberWithNoPortals(parent) {
    var currentParent = findCurrentFiberUsingSlowPath(parent);
    return currentParent !== null ? findCurrentHostFiberWithNoPortalsImpl(currentParent) : null;
  }

  function findCurrentHostFiberWithNoPortalsImpl(node) {
    // Next we'll drill down this component to find the first HostComponent/Text.
    if (node.tag === HostComponent || node.tag === HostText) {
      return node;
    }

    var child = node.child;

    while (child !== null) {
      if (child.tag !== HostPortal) {
        var match = findCurrentHostFiberWithNoPortalsImpl(child);

        if (match !== null) {
          return match;
        }
      }

      child = child.sibling;
    }

    return null;
  }

  // This module only exists as an ESM wrapper around the external CommonJS
  var scheduleCallback = unstable_scheduleCallback;
  var cancelCallback = unstable_cancelCallback;
  var shouldYield = unstable_shouldYield;
  var requestPaint = unstable_requestPaint;
  var now = unstable_now;
  var getCurrentPriorityLevel = unstable_getCurrentPriorityLevel;
  var ImmediatePriority = unstable_ImmediatePriority;
  var UserBlockingPriority = unstable_UserBlockingPriority;
  var NormalPriority = unstable_NormalPriority;
  var LowPriority = unstable_LowPriority;
  var IdlePriority = unstable_IdlePriority;
  // this doesn't actually exist on the scheduler, but it *does*
  // on scheduler/unstable_mock, which we'll need for internal testing
  var unstable_yieldValue$1 = unstable_yieldValue;
  var unstable_setDisableYieldValue$1 = unstable_setDisableYieldValue;

  var rendererID = null;
  var injectedHook = null;
  var injectedProfilingHooks = 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) {
      {
        error('The installed version of React DevTools is too old and will not work ' + 'with the current version of React. Please update React DevTools. ' + 'https://reactjs.org/link/react-devtools');
      } // DevTools exists, even though it doesn't support Fiber.


      return true;
    }

    try {
      if (enableSchedulingProfiler) {
        // Conditionally inject these hooks only if Timeline profiler is supported by this build.
        // This gives DevTools a way to feature detect that isn't tied to version number
        // (since profiling and timeline are controlled by different feature flags).
        internals = assign({}, internals, {
          getLaneLabelMap: getLaneLabelMap,
          injectProfilingHooks: injectProfilingHooks
        });
      }

      rendererID = hook.inject(internals); // We have successfully injected, so now it is safe to set up hooks.

      injectedHook = hook;
    } catch (err) {
      // Catch all errors because it is unsafe to throw during initialization.
      {
        error('React instrumentation encountered an error: %s.', err);
      }
    }

    if (hook.checkDCE) {
      // This is the real DevTools.
      return true;
    } else {
      // This is likely a hook installed by Fast Refresh runtime.
      return false;
    }
  }
  function onScheduleRoot(root, children) {
    {
      if (injectedHook && typeof injectedHook.onScheduleFiberRoot === 'function') {
        try {
          injectedHook.onScheduleFiberRoot(rendererID, root, children);
        } catch (err) {
          if ( !hasLoggedError) {
            hasLoggedError = true;

            error('React instrumentation encountered an error: %s', err);
          }
        }
      }
    }
  }
  function onCommitRoot(root, eventPriority) {
    if (injectedHook && typeof injectedHook.onCommitFiberRoot === 'function') {
      try {
        var didError = (root.current.flags & DidCapture) === DidCapture;

        if (enableProfilerTimer) {
          var schedulerPriority;

          switch (eventPriority) {
            case DiscreteEventPriority:
              schedulerPriority = ImmediatePriority;
              break;

            case ContinuousEventPriority:
              schedulerPriority = UserBlockingPriority;
              break;

            case DefaultEventPriority:
              schedulerPriority = NormalPriority;
              break;

            case IdleEventPriority:
              schedulerPriority = IdlePriority;
              break;

            default:
              schedulerPriority = NormalPriority;
              break;
          }

          injectedHook.onCommitFiberRoot(rendererID, root, schedulerPriority, didError);
        } else {
          injectedHook.onCommitFiberRoot(rendererID, root, undefined, didError);
        }
      } catch (err) {
        {
          if (!hasLoggedError) {
            hasLoggedError = true;

            error('React instrumentation encountered an error: %s', err);
          }
        }
      }
    }
  }
  function onPostCommitRoot(root) {
    if (injectedHook && typeof injectedHook.onPostCommitFiberRoot === 'function') {
      try {
        injectedHook.onPostCommitFiberRoot(rendererID, root);
      } catch (err) {
        {
          if (!hasLoggedError) {
            hasLoggedError = true;

            error('React instrumentation encountered an error: %s', err);
          }
        }
      }
    }
  }
  function onCommitUnmount(fiber) {
    if (injectedHook && typeof injectedHook.onCommitFiberUnmount === 'function') {
      try {
        injectedHook.onCommitFiberUnmount(rendererID, fiber);
      } catch (err) {
        {
          if (!hasLoggedError) {
            hasLoggedError = true;

            error('React instrumentation encountered an error: %s', err);
          }
        }
      }
    }
  }
  function setIsStrictModeForDevtools(newIsStrictMode) {
    {
      if (typeof unstable_yieldValue$1 === 'function') {
        // We're in a test because Scheduler.unstable_yieldValue only exists
        // in SchedulerMock. To reduce the noise in strict mode tests,
        // suppress warnings and disable scheduler yielding during the double render
        unstable_setDisableYieldValue$1(newIsStrictMode);
        setSuppressWarning(newIsStrictMode);
      }

      if (injectedHook && typeof injectedHook.setStrictMode === 'function') {
        try {
          injectedHook.setStrictMode(rendererID, newIsStrictMode);
        } catch (err) {
          {
            if (!hasLoggedError) {
              hasLoggedError = true;

              error('React instrumentation encountered an error: %s', err);
            }
          }
        }
      }
    }
  } // Profiler API hooks

  function injectProfilingHooks(profilingHooks) {
    injectedProfilingHooks = profilingHooks;
  }

  function getLaneLabelMap() {
    {
      var map = new Map();
      var lane = 1;

      for (var index = 0; index < TotalLanes; index++) {
        var label = getLabelForLane(lane);
        map.set(lane, label);
        lane *= 2;
      }

      return map;
    }
  }

  function markCommitStarted(lanes) {
    {
      if (injectedProfilingHooks !== null && typeof injectedProfilingHooks.markCommitStarted === 'function') {
        injectedProfilingHooks.markCommitStarted(lanes);
      }
    }
  }
  function markCommitStopped() {
    {
      if (injectedProfilingHooks !== null && typeof injectedProfilingHooks.markCommitStopped === 'function') {
        injectedProfilingHooks.markCommitStopped();
      }
    }
  }
  function markComponentRenderStarted(fiber) {
    {
      if (injectedProfilingHooks !== null && typeof injectedProfilingHooks.markComponentRenderStarted === 'function') {
        injectedProfilingHooks.markComponentRenderStarted(fiber);
      }
    }
  }
  function markComponentRenderStopped() {
    {
      if (injectedProfilingHooks !== null && typeof injectedProfilingHooks.markComponentRenderStopped === 'function') {
        injectedProfilingHooks.markComponentRenderStopped();
      }
    }
  }
  function markComponentPassiveEffectMountStarted(fiber) {
    {
      if (injectedProfilingHooks !== null && typeof injectedProfilingHooks.markComponentPassiveEffectMountStarted === 'function') {
        injectedProfilingHooks.markComponentPassiveEffectMountStarted(fiber);
      }
    }
  }
  function markComponentPassiveEffectMountStopped() {
    {
      if (injectedProfilingHooks !== null && typeof injectedProfilingHooks.markComponentPassiveEffectMountStopped === 'function') {
        injectedProfilingHooks.markComponentPassiveEffectMountStopped();
      }
    }
  }
  function markComponentPassiveEffectUnmountStarted(fiber) {
    {
      if (injectedProfilingHooks !== null && typeof injectedProfilingHooks.markComponentPassiveEffectUnmountStarted === 'function') {
        injectedProfilingHooks.markComponentPassiveEffectUnmountStarted(fiber);
      }
    }
  }
  function markComponentPassiveEffectUnmountStopped() {
    {
      if (injectedProfilingHooks !== null && typeof injectedProfilingHooks.markComponentPassiveEffectUnmountStopped === 'function') {
        injectedProfilingHooks.markComponentPassiveEffectUnmountStopped();
      }
    }
  }
  function markComponentLayoutEffectMountStarted(fiber) {
    {
      if (injectedProfilingHooks !== null && typeof injectedProfilingHooks.markComponentLayoutEffectMountStarted === 'function') {
        injectedProfilingHooks.markComponentLayoutEffectMountStarted(fiber);
      }
    }
  }
  function markComponentLayoutEffectMountStopped() {
    {
      if (injectedProfilingHooks !== null && typeof injectedProfilingHooks.markComponentLayoutEffectMountStopped === 'function') {
        injectedProfilingHooks.markComponentLayoutEffectMountStopped();
      }
    }
  }
  function markComponentLayoutEffectUnmountStarted(fiber) {
    {
      if (injectedProfilingHooks !== null && typeof injectedProfilingHooks.markComponentLayoutEffectUnmountStarted === 'function') {
        injectedProfilingHooks.markComponentLayoutEffectUnmountStarted(fiber);
      }
    }
  }
  function markComponentLayoutEffectUnmountStopped() {
    {
      if (injectedProfilingHooks !== null && typeof injectedProfilingHooks.markComponentLayoutEffectUnmountStopped === 'function') {
        injectedProfilingHooks.markComponentLayoutEffectUnmountStopped();
      }
    }
  }
  function markComponentErrored(fiber, thrownValue, lanes) {
    {
      if (injectedProfilingHooks !== null && typeof injectedProfilingHooks.markComponentErrored === 'function') {
        injectedProfilingHooks.markComponentErrored(fiber, thrownValue, lanes);
      }
    }
  }
  function markComponentSuspended(fiber, wakeable, lanes) {
    {
      if (injectedProfilingHooks !== null && typeof injectedProfilingHooks.markComponentSuspended === 'function') {
        injectedProfilingHooks.markComponentSuspended(fiber, wakeable, lanes);
      }
    }
  }
  function markLayoutEffectsStarted(lanes) {
    {
      if (injectedProfilingHooks !== null && typeof injectedProfilingHooks.markLayoutEffectsStarted === 'function') {
        injectedProfilingHooks.markLayoutEffectsStarted(lanes);
      }
    }
  }
  function markLayoutEffectsStopped() {
    {
      if (injectedProfilingHooks !== null && typeof injectedProfilingHooks.markLayoutEffectsStopped === 'function') {
        injectedProfilingHooks.markLayoutEffectsStopped();
      }
    }
  }
  function markPassiveEffectsStarted(lanes) {
    {
      if (injectedProfilingHooks !== null && typeof injectedProfilingHooks.markPassiveEffectsStarted === 'function') {
        injectedProfilingHooks.markPassiveEffectsStarted(lanes);
      }
    }
  }
  function markPassiveEffectsStopped() {
    {
      if (injectedProfilingHooks !== null && typeof injectedProfilingHooks.markPassiveEffectsStopped === 'function') {
        injectedProfilingHooks.markPassiveEffectsStopped();
      }
    }
  }
  function markRenderStarted(lanes) {
    {
      if (injectedProfilingHooks !== null && typeof injectedProfilingHooks.markRenderStarted === 'function') {
        injectedProfilingHooks.markRenderStarted(lanes);
      }
    }
  }
  function markRenderYielded() {
    {
      if (injectedProfilingHooks !== null && typeof injectedProfilingHooks.markRenderYielded === 'function') {
        injectedProfilingHooks.markRenderYielded();
      }
    }
  }
  function markRenderStopped() {
    {
      if (injectedProfilingHooks !== null && typeof injectedProfilingHooks.markRenderStopped === 'function') {
        injectedProfilingHooks.markRenderStopped();
      }
    }
  }
  function markRenderScheduled(lane) {
    {
      if (injectedProfilingHooks !== null && typeof injectedProfilingHooks.markRenderScheduled === 'function') {
        injectedProfilingHooks.markRenderScheduled(lane);
      }
    }
  }
  function markForceUpdateScheduled(fiber, lane) {
    {
      if (injectedProfilingHooks !== null && typeof injectedProfilingHooks.markForceUpdateScheduled === 'function') {
        injectedProfilingHooks.markForceUpdateScheduled(fiber, lane);
      }
    }
  }
  function markStateUpdateScheduled(fiber, lane) {
    {
      if (injectedProfilingHooks !== null && typeof injectedProfilingHooks.markStateUpdateScheduled === 'function') {
        injectedProfilingHooks.markStateUpdateScheduled(fiber, lane);
      }
    }
  }

  var NoMode =
  /*                         */
  0; // TODO: Remove ConcurrentMode by reading from the root tag instead

  var ConcurrentMode =
  /*                 */
  1;
  var ProfileMode =
  /*                    */
  2;
  var StrictLegacyMode =
  /*               */
  8;
  var StrictEffectsMode =
  /*              */
  16;

  // TODO: This is pretty well supported by browsers. Maybe we can drop it.
  var clz32 = Math.clz32 ? Math.clz32 : clz32Fallback; // Count leading zeros.
  // Based on:
  // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/clz32

  var log = Math.log;
  var LN2 = Math.LN2;

  function clz32Fallback(x) {
    var asUint = x >>> 0;

    if (asUint === 0) {
      return 32;
    }

    return 31 - (log(asUint) / LN2 | 0) | 0;
  }

  // If those values are changed that package should be rebuilt and redeployed.

  var TotalLanes = 31;
  var NoLanes =
  /*                        */
  0;
  var NoLane =
  /*                          */
  0;
  var SyncLane =
  /*                        */
  1;
  var InputContinuousHydrationLane =
  /*    */
  2;
  var InputContinuousLane =
  /*             */
  4;
  var DefaultHydrationLane =
  /*            */
  8;
  var DefaultLane =
  /*                     */
  16;
  var TransitionHydrationLane =
  /*                */
  32;
  var TransitionLanes =
  /*                       */
  4194240;
  var TransitionLane1 =
  /*                        */
  64;
  var TransitionLane2 =
  /*                        */
  128;
  var TransitionLane3 =
  /*                        */
  256;
  var TransitionLane4 =
  /*                        */
  512;
  var TransitionLane5 =
  /*                        */
  1024;
  var TransitionLane6 =
  /*                        */
  2048;
  var TransitionLane7 =
  /*                        */
  4096;
  var TransitionLane8 =
  /*                        */
  8192;
  var TransitionLane9 =
  /*                        */
  16384;
  var TransitionLane10 =
  /*                       */
  32768;
  var TransitionLane11 =
  /*                       */
  65536;
  var TransitionLane12 =
  /*                       */
  131072;
  var TransitionLane13 =
  /*                       */
  262144;
  var TransitionLane14 =
  /*                       */
  524288;
  var TransitionLane15 =
  /*                       */
  1048576;
  var TransitionLane16 =
  /*                       */
  2097152;
  var RetryLanes =
  /*                            */
  130023424;
  var RetryLane1 =
  /*                             */
  4194304;
  var RetryLane2 =
  /*                             */
  8388608;
  var RetryLane3 =
  /*                             */
  16777216;
  var RetryLane4 =
  /*                             */
  33554432;
  var RetryLane5 =
  /*                             */
  67108864;
  var SomeRetryLane = RetryLane1;
  var SelectiveHydrationLane =
  /*          */
  134217728;
  var NonIdleLanes =
  /*                          */
  268435455;
  var IdleHydrationLane =
  /*               */
  268435456;
  var IdleLane =
  /*                        */
  536870912;
  var OffscreenLane =
  /*                   */
  1073741824; // This function is used for the experimental timeline (react-devtools-timeline)
  // It should be kept in sync with the Lanes values above.

  function getLabelForLane(lane) {
    {
      if (lane & SyncLane) {
        return 'Sync';
      }

      if (lane & InputContinuousHydrationLane) {
        return 'InputContinuousHydration';
      }

      if (lane & InputContinuousLane) {
        return 'InputContinuous';
      }

      if (lane & DefaultHydrationLane) {
        return 'DefaultHydration';
      }

      if (lane & DefaultLane) {
        return 'Default';
      }

      if (lane & TransitionHydrationLane) {
        return 'TransitionHydration';
      }

      if (lane & TransitionLanes) {
        return 'Transition';
      }

      if (lane & RetryLanes) {
        return 'Retry';
      }

      if (lane & SelectiveHydrationLane) {
        return 'SelectiveHydration';
      }

      if (lane & IdleHydrationLane) {
        return 'IdleHydration';
      }

      if (lane & IdleLane) {
        return 'Idle';
      }

      if (lane & OffscreenLane) {
        return 'Offscreen';
      }
    }
  }
  var NoTimestamp = -1;
  var nextTransitionLane = TransitionLane1;
  var nextRetryLane = RetryLane1;

  function getHighestPriorityLanes(lanes) {
    switch (getHighestPriorityLane(lanes)) {
      case SyncLane:
        return SyncLane;

      case InputContinuousHydrationLane:
        return InputContinuousHydrationLane;

      case InputContinuousLane:
        return InputContinuousLane;

      case DefaultHydrationLane:
        return DefaultHydrationLane;

      case DefaultLane:
        return DefaultLane;

      case TransitionHydrationLane:
        return TransitionHydrationLane;

      case TransitionLane1:
      case TransitionLane2:
      case TransitionLane3:
      case TransitionLane4:
      case TransitionLane5:
      case TransitionLane6:
      case TransitionLane7:
      case TransitionLane8:
      case TransitionLane9:
      case TransitionLane10:
      case TransitionLane11:
      case TransitionLane12:
      case TransitionLane13:
      case TransitionLane14:
      case TransitionLane15:
      case TransitionLane16:
        return lanes & TransitionLanes;

      case RetryLane1:
      case RetryLane2:
      case RetryLane3:
      case RetryLane4:
      case RetryLane5:
        return lanes & RetryLanes;

      case SelectiveHydrationLane:
        return SelectiveHydrationLane;

      case IdleHydrationLane:
        return IdleHydrationLane;

      case IdleLane:
        return IdleLane;

      case OffscreenLane:
        return OffscreenLane;

      default:
        {
          error('Should have found matching lanes. This is a bug in React.');
        } // This shouldn't be reachable, but as a fallback, return the entire bitmask.


        return lanes;
    }
  }

  function getNextLanes(root, wipLanes) {
    // Early bailout if there's no pending work left.
    var pendingLanes = root.pendingLanes;

    if (pendingLanes === NoLanes) {
      return NoLanes;
    }

    var nextLanes = NoLanes;
    var suspendedLanes = root.suspendedLanes;
    var pingedLanes = root.pingedLanes; // Do not work on any idle work until all the non-idle work has finished,
    // even if the work is suspended.

    var nonIdlePendingLanes = pendingLanes & NonIdleLanes;

    if (nonIdlePendingLanes !== NoLanes) {
      var nonIdleUnblockedLanes = nonIdlePendingLanes & ~suspendedLanes;

      if (nonIdleUnblockedLanes !== NoLanes) {
        nextLanes = getHighestPriorityLanes(nonIdleUnblockedLanes);
      } else {
        var nonIdlePingedLanes = nonIdlePendingLanes & pingedLanes;

        if (nonIdlePingedLanes !== NoLanes) {
          nextLanes = getHighestPriorityLanes(nonIdlePingedLanes);
        }
      }
    } else {
      // The only remaining work is Idle.
      var unblockedLanes = pendingLanes & ~suspendedLanes;

      if (unblockedLanes !== NoLanes) {
        nextLanes = getHighestPriorityLanes(unblockedLanes);
      } else {
        if (pingedLanes !== NoLanes) {
          nextLanes = getHighestPriorityLanes(pingedLanes);
        }
      }
    }

    if (nextLanes === NoLanes) {
      // This should only be reachable if we're suspended
      // TODO: Consider warning in this path if a fallback timer is not scheduled.
      return NoLanes;
    } // If we're already in the middle of a render, switching lanes will interrupt
    // it and we'll lose our progress. We should only do this if the new lanes are
    // higher priority.


    if (wipLanes !== NoLanes && wipLanes !== nextLanes && // If we already suspended with a delay, then interrupting is fine. Don't
    // bother waiting until the root is complete.
    (wipLanes & suspendedLanes) === NoLanes) {
      var nextLane = getHighestPriorityLane(nextLanes);
      var wipLane = getHighestPriorityLane(wipLanes);

      if ( // Tests whether the next lane is equal or lower priority than the wip
      // one. This works because the bits decrease in priority as you go left.
      nextLane >= wipLane || // Default priority updates should not interrupt transition updates. The
      // only difference between default updates and transition updates is that
      // default updates do not support refresh transitions.
      nextLane === DefaultLane && (wipLane & TransitionLanes) !== NoLanes) {
        // Keep working on the existing in-progress tree. Do not interrupt.
        return wipLanes;
      }
    }

    if ((nextLanes & InputContinuousLane) !== NoLanes) {
      // When updates are sync by default, we entangle continuous priority updates
      // and default updates, so they render in the same batch. The only reason
      // they use separate lanes is because continuous updates should interrupt
      // transitions, but default updates should not.
      nextLanes |= pendingLanes & DefaultLane;
    } // Check for entangled lanes and add them to the batch.
    //
    // A lane is said to be entangled with another when it's not allowed to render
    // in a batch that does not also include the other lane. Typically we do this
    // when multiple updates have the same source, and we only want to respond to
    // the most recent event from that source.
    //
    // Note that we apply entanglements *after* checking for partial work above.
    // This means that if a lane is entangled during an interleaved event while
    // it's already rendering, we won't interrupt it. This is intentional, since
    // entanglement is usually "best effort": we'll try our best to render the
    // lanes in the same batch, but it's not worth throwing out partially
    // completed work in order to do it.
    // TODO: Reconsider this. The counter-argument is that the partial work
    // represents an intermediate state, which we don't want to show to the user.
    // And by spending extra time finishing it, we're increasing the amount of
    // time it takes to show the final state, which is what they are actually
    // waiting for.
    //
    // For those exceptions where entanglement is semantically important, like
    // useMutableSource, we should ensure that there is no partial work at the
    // time we apply the entanglement.


    var entangledLanes = root.entangledLanes;

    if (entangledLanes !== NoLanes) {
      var entanglements = root.entanglements;
      var lanes = nextLanes & entangledLanes;

      while (lanes > 0) {
        var index = pickArbitraryLaneIndex(lanes);
        var lane = 1 << index;
        nextLanes |= entanglements[index];
        lanes &= ~lane;
      }
    }

    return nextLanes;
  }
  function getMostRecentEventTime(root, lanes) {
    var eventTimes = root.eventTimes;
    var mostRecentEventTime = NoTimestamp;

    while (lanes > 0) {
      var index = pickArbitraryLaneIndex(lanes);
      var lane = 1 << index;
      var eventTime = eventTimes[index];

      if (eventTime > mostRecentEventTime) {
        mostRecentEventTime = eventTime;
      }

      lanes &= ~lane;
    }

    return mostRecentEventTime;
  }

  function computeExpirationTime(lane, currentTime) {
    switch (lane) {
      case SyncLane:
      case InputContinuousHydrationLane:
      case InputContinuousLane:
        // User interactions should expire slightly more quickly.
        //
        // NOTE: This is set to the corresponding constant as in Scheduler.js.
        // When we made it larger, a product metric in www regressed, suggesting
        // there's a user interaction that's being starved by a series of
        // synchronous updates. If that theory is correct, the proper solution is
        // to fix the starvation. However, this scenario supports the idea that
        // expiration times are an important safeguard when starvation
        // does happen.
        return currentTime + 250;

      case DefaultHydrationLane:
      case DefaultLane:
      case TransitionHydrationLane:
      case TransitionLane1:
      case TransitionLane2:
      case TransitionLane3:
      case TransitionLane4:
      case TransitionLane5:
      case TransitionLane6:
      case TransitionLane7:
      case TransitionLane8:
      case TransitionLane9:
      case TransitionLane10:
      case TransitionLane11:
      case TransitionLane12:
      case TransitionLane13:
      case TransitionLane14:
      case TransitionLane15:
      case TransitionLane16:
        return currentTime + 5000;

      case RetryLane1:
      case RetryLane2:
      case RetryLane3:
      case RetryLane4:
      case RetryLane5:
        // TODO: Retries should be allowed to expire if they are CPU bound for
        // too long, but when I made this change it caused a spike in browser
        // crashes. There must be some other underlying bug; not super urgent but
        // ideally should figure out why and fix it. Unfortunately we don't have
        // a repro for the crashes, only detected via production metrics.
        return NoTimestamp;

      case SelectiveHydrationLane:
      case IdleHydrationLane:
      case IdleLane:
      case OffscreenLane:
        // Anything idle priority or lower should never expire.
        return NoTimestamp;

      default:
        {
          error('Should have found matching lanes. This is a bug in React.');
        }

        return NoTimestamp;
    }
  }

  function markStarvedLanesAsExpired(root, currentTime) {
    // TODO: This gets called every time we yield. We can optimize by storing
    // the earliest expiration time on the root. Then use that to quickly bail out
    // of this function.
    var pendingLanes = root.pendingLanes;
    var suspendedLanes = root.suspendedLanes;
    var pingedLanes = root.pingedLanes;
    var expirationTimes = root.expirationTimes; // Iterate through the pending lanes and check if we've reached their
    // expiration time. If so, we'll assume the update is being starved and mark
    // it as expired to force it to finish.

    var lanes = pendingLanes;

    while (lanes > 0) {
      var index = pickArbitraryLaneIndex(lanes);
      var lane = 1 << index;
      var expirationTime = expirationTimes[index];

      if (expirationTime === NoTimestamp) {
        // Found a pending lane with no expiration time. If it's not suspended, or
        // if it's pinged, assume it's CPU-bound. Compute a new expiration time
        // using the current time.
        if ((lane & suspendedLanes) === NoLanes || (lane & pingedLanes) !== NoLanes) {
          // Assumes timestamps are monotonically increasing.
          expirationTimes[index] = computeExpirationTime(lane, currentTime);
        }
      } else if (expirationTime <= currentTime) {
        // This lane expired
        root.expiredLanes |= lane;
      }

      lanes &= ~lane;
    }
  } // This returns the highest priority pending lanes regardless of whether they
  // are suspended.

  function getHighestPriorityPendingLanes(root) {
    return getHighestPriorityLanes(root.pendingLanes);
  }
  function getLanesToRetrySynchronouslyOnError(root) {
    var everythingButOffscreen = root.pendingLanes & ~OffscreenLane;

    if (everythingButOffscreen !== NoLanes) {
      return everythingButOffscreen;
    }

    if (everythingButOffscreen & OffscreenLane) {
      return OffscreenLane;
    }

    return NoLanes;
  }
  function includesSyncLane(lanes) {
    return (lanes & SyncLane) !== NoLanes;
  }
  function includesNonIdleWork(lanes) {
    return (lanes & NonIdleLanes) !== NoLanes;
  }
  function includesOnlyRetries(lanes) {
    return (lanes & RetryLanes) === lanes;
  }
  function includesOnlyNonUrgentLanes(lanes) {
    var UrgentLanes = SyncLane | InputContinuousLane | DefaultLane;
    return (lanes & UrgentLanes) === NoLanes;
  }
  function includesOnlyTransitions(lanes) {
    return (lanes & TransitionLanes) === lanes;
  }
  function includesBlockingLane(root, lanes) {

    var SyncDefaultLanes = InputContinuousHydrationLane | InputContinuousLane | DefaultHydrationLane | DefaultLane;
    return (lanes & SyncDefaultLanes) !== NoLanes;
  }
  function includesExpiredLane(root, lanes) {
    // This is a separate check from includesBlockingLane because a lane can
    // expire after a render has already started.
    return (lanes & root.expiredLanes) !== NoLanes;
  }
  function isTransitionLane(lane) {
    return (lane & TransitionLanes) !== NoLanes;
  }
  function claimNextTransitionLane() {
    // Cycle through the lanes, assigning each new transition to the next lane.
    // In most cases, this means every transition gets its own lane, until we
    // run out of lanes and cycle back to the beginning.
    var lane = nextTransitionLane;
    nextTransitionLane <<= 1;

    if ((nextTransitionLane & TransitionLanes) === NoLanes) {
      nextTransitionLane = TransitionLane1;
    }

    return lane;
  }
  function claimNextRetryLane() {
    var lane = nextRetryLane;
    nextRetryLane <<= 1;

    if ((nextRetryLane & RetryLanes) === NoLanes) {
      nextRetryLane = RetryLane1;
    }

    return lane;
  }
  function getHighestPriorityLane(lanes) {
    return lanes & -lanes;
  }
  function pickArbitraryLane(lanes) {
    // This wrapper function gets inlined. Only exists so to communicate that it
    // doesn't matter which bit is selected; you can pick any bit without
    // affecting the algorithms where its used. Here I'm using
    // getHighestPriorityLane because it requires the fewest operations.
    return getHighestPriorityLane(lanes);
  }

  function pickArbitraryLaneIndex(lanes) {
    return 31 - clz32(lanes);
  }

  function laneToIndex(lane) {
    return pickArbitraryLaneIndex(lane);
  }

  function includesSomeLane(a, b) {
    return (a & b) !== NoLanes;
  }
  function isSubsetOfLanes(set, subset) {
    return (set & subset) === subset;
  }
  function mergeLanes(a, b) {
    return a | b;
  }
  function removeLanes(set, subset) {
    return set & ~subset;
  }
  function intersectLanes(a, b) {
    return a & b;
  } // Seems redundant, but it changes the type from a single lane (used for
  // updates) to a group of lanes (used for flushing work).

  function laneToLanes(lane) {
    return lane;
  }
  function higherPriorityLane(a, b) {
    // This works because the bit ranges decrease in priority as you go left.
    return a !== NoLane && a < b ? a : b;
  }
  function createLaneMap(initial) {
    // Intentionally pushing one by one.
    // https://v8.dev/blog/elements-kinds#avoid-creating-holes
    var laneMap = [];

    for (var i = 0; i < TotalLanes; i++) {
      laneMap.push(initial);
    }

    return laneMap;
  }
  function markRootUpdated(root, updateLane, eventTime) {
    root.pendingLanes |= updateLane; // If there are any suspended transitions, it's possible this new update
    // could unblock them. Clear the suspended lanes so that we can try rendering
    // them again.
    //
    // TODO: We really only need to unsuspend only lanes that are in the
    // `subtreeLanes` of the updated fiber, or the update lanes of the return
    // path. This would exclude suspended updates in an unrelated sibling tree,
    // since there's no way for this update to unblock it.
    //
    // We don't do this if the incoming update is idle, because we never process
    // idle updates until after all the regular updates have finished; there's no
    // way it could unblock a transition.

    if (updateLane !== IdleLane) {
      root.suspendedLanes = NoLanes;
      root.pingedLanes = NoLanes;
    }

    var eventTimes = root.eventTimes;
    var index = laneToIndex(updateLane); // We can always overwrite an existing timestamp because we prefer the most
    // recent event, and we assume time is monotonically increasing.

    eventTimes[index] = eventTime;
  }
  function markRootSuspended(root, suspendedLanes) {
    root.suspendedLanes |= suspendedLanes;
    root.pingedLanes &= ~suspendedLanes; // The suspended lanes are no longer CPU-bound. Clear their expiration times.

    var expirationTimes = root.expirationTimes;
    var lanes = suspendedLanes;

    while (lanes > 0) {
      var index = pickArbitraryLaneIndex(lanes);
      var lane = 1 << index;
      expirationTimes[index] = NoTimestamp;
      lanes &= ~lane;
    }
  }
  function markRootPinged(root, pingedLanes, eventTime) {
    root.pingedLanes |= root.suspendedLanes & pingedLanes;
  }
  function markRootFinished(root, remainingLanes) {
    var noLongerPendingLanes = root.pendingLanes & ~remainingLanes;
    root.pendingLanes = remainingLanes; // Let's try everything again

    root.suspendedLanes = NoLanes;
    root.pingedLanes = NoLanes;
    root.expiredLanes &= remainingLanes;
    root.mutableReadLanes &= remainingLanes;
    root.entangledLanes &= remainingLanes;
    var entanglements = root.entanglements;
    var eventTimes = root.eventTimes;
    var expirationTimes = root.expirationTimes; // Clear the lanes that no longer have pending work

    var lanes = noLongerPendingLanes;

    while (lanes > 0) {
      var index = pickArbitraryLaneIndex(lanes);
      var lane = 1 << index;
      entanglements[index] = NoLanes;
      eventTimes[index] = NoTimestamp;
      expirationTimes[index] = NoTimestamp;
      lanes &= ~lane;
    }
  }
  function markRootEntangled(root, entangledLanes) {
    // In addition to entangling each of the given lanes with each other, we also
    // have to consider _transitive_ entanglements. For each lane that is already
    // entangled with *any* of the given lanes, that lane is now transitively
    // entangled with *all* the given lanes.
    //
    // Translated: If C is entangled with A, then entangling A with B also
    // entangles C with B.
    //
    // If this is hard to grasp, it might help to intentionally break this
    // function and look at the tests that fail in ReactTransition-test.js. Try
    // commenting out one of the conditions below.
    var rootEntangledLanes = root.entangledLanes |= entangledLanes;
    var entanglements = root.entanglements;
    var lanes = rootEntangledLanes;

    while (lanes) {
      var index = pickArbitraryLaneIndex(lanes);
      var lane = 1 << index;

      if ( // Is this one of the newly entangled lanes?
      lane & entangledLanes | // Is this lane transitively entangled with the newly entangled lanes?
      entanglements[index] & entangledLanes) {
        entanglements[index] |= entangledLanes;
      }

      lanes &= ~lane;
    }
  }
  function getBumpedLaneForHydration(root, renderLanes) {
    var renderLane = getHighestPriorityLane(renderLanes);
    var lane;

    switch (renderLane) {
      case InputContinuousLane:
        lane = InputContinuousHydrationLane;
        break;

      case DefaultLane:
        lane = DefaultHydrationLane;
        break;

      case TransitionLane1:
      case TransitionLane2:
      case TransitionLane3:
      case TransitionLane4:
      case TransitionLane5:
      case TransitionLane6:
      case TransitionLane7:
      case TransitionLane8:
      case TransitionLane9:
      case TransitionLane10:
      case TransitionLane11:
      case TransitionLane12:
      case TransitionLane13:
      case TransitionLane14:
      case TransitionLane15:
      case TransitionLane16:
      case RetryLane1:
      case RetryLane2:
      case RetryLane3:
      case RetryLane4:
      case RetryLane5:
        lane = TransitionHydrationLane;
        break;

      case IdleLane:
        lane = IdleHydrationLane;
        break;

      default:
        // Everything else is already either a hydration lane, or shouldn't
        // be retried at a hydration lane.
        lane = NoLane;
        break;
    } // Check if the lane we chose is suspended. If so, that indicates that we
    // already attempted and failed to hydrate at that level. Also check if we're
    // already rendering that lane, which is rare but could happen.


    if ((lane & (root.suspendedLanes | renderLanes)) !== NoLane) {
      // Give up trying to hydrate and fall back to client render.
      return NoLane;
    }

    return lane;
  }
  function addFiberToLanesMap(root, fiber, lanes) {

    if (!isDevToolsPresent) {
      return;
    }

    var pendingUpdatersLaneMap = root.pendingUpdatersLaneMap;

    while (lanes > 0) {
      var index = laneToIndex(lanes);
      var lane = 1 << index;
      var updaters = pendingUpdatersLaneMap[index];
      updaters.add(fiber);
      lanes &= ~lane;
    }
  }
  function movePendingFibersToMemoized(root, lanes) {

    if (!isDevToolsPresent) {
      return;
    }

    var pendingUpdatersLaneMap = root.pendingUpdatersLaneMap;
    var memoizedUpdaters = root.memoizedUpdaters;

    while (lanes > 0) {
      var index = laneToIndex(lanes);
      var lane = 1 << index;
      var updaters = pendingUpdatersLaneMap[index];

      if (updaters.size > 0) {
        updaters.forEach(function (fiber) {
          var alternate = fiber.alternate;

          if (alternate === null || !memoizedUpdaters.has(alternate)) {
            memoizedUpdaters.add(fiber);
          }
        });
        updaters.clear();
      }

      lanes &= ~lane;
    }
  }
  function getTransitionsForLanes(root, lanes) {
    {
      return null;
    }
  }

  var DiscreteEventPriority = SyncLane;
  var ContinuousEventPriority = InputContinuousLane;
  var DefaultEventPriority = DefaultLane;
  var IdleEventPriority = IdleLane;
  var currentUpdatePriority = NoLane;
  function getCurrentUpdatePriority() {
    return currentUpdatePriority;
  }
  function setCurrentUpdatePriority(newPriority) {
    currentUpdatePriority = newPriority;
  }
  function runWithPriority(priority, fn) {
    var previousPriority = currentUpdatePriority;

    try {
      currentUpdatePriority = priority;
      return fn();
    } finally {
      currentUpdatePriority = previousPriority;
    }
  }
  function higherEventPriority(a, b) {
    return a !== 0 && a < b ? a : b;
  }
  function lowerEventPriority(a, b) {
    return a === 0 || a > b ? a : b;
  }
  function isHigherEventPriority(a, b) {
    return a !== 0 && a < b;
  }
  function lanesToEventPriority(lanes) {
    var lane = getHighestPriorityLane(lanes);

    if (!isHigherEventPriority(DiscreteEventPriority, lane)) {
      return DiscreteEventPriority;
    }

    if (!isHigherEventPriority(ContinuousEventPriority, lane)) {
      return ContinuousEventPriority;
    }

    if (includesNonIdleWork(lane)) {
      return DefaultEventPriority;
    }

    return IdleEventPriority;
  }

  // This is imported by the event replaying implementation in React DOM. It's
  // in a separate file to break a circular dependency between the renderer and
  // the reconciler.
  function isRootDehydrated(root) {
    var currentState = root.current.memoizedState;
    return currentState.isDehydrated;
  }

  var _attemptSynchronousHydration;

  function setAttemptSynchronousHydration(fn) {
    _attemptSynchronousHydration = fn;
  }
  function attemptSynchronousHydration(fiber) {
    _attemptSynchronousHydration(fiber);
  }
  var attemptContinuousHydration;
  function setAttemptContinuousHydration(fn) {
    attemptContinuousHydration = fn;
  }
  var attemptHydrationAtCurrentPriority;
  function setAttemptHydrationAtCurrentPriority(fn) {
    attemptHydrationAtCurrentPriority = fn;
  }
  var getCurrentUpdatePriority$1;
  function setGetCurrentUpdatePriority(fn) {
    getCurrentUpdatePriority$1 = fn;
  }
  var attemptHydrationAtPriority;
  function setAttemptHydrationAtPriority(fn) {
    attemptHydrationAtPriority = fn;
  } // TODO: Upgrade this definition once we're on a newer version of Flow that
  // has this definition built-in.

  var hasScheduledReplayAttempt = false; // The queue of discrete events to be replayed.

  var queuedDiscreteEvents = []; // Indicates if any continuous event targets are non-null for early bailout.
  // if the last target was dehydrated.

  var queuedFocus = null;
  var queuedDrag = null;
  var queuedMouse = null; // For pointer events there can be one latest event per pointerId.

  var queuedPointers = new Map();
  var queuedPointerCaptures = new Map(); // We could consider replaying selectionchange and touchmoves too.

  var queuedExplicitHydrationTargets = [];
  var discreteReplayableEvents = ['mousedown', 'mouseup', 'touchcancel', 'touchend', 'touchstart', 'auxclick', 'dblclick', 'pointercancel', 'pointerdown', 'pointerup', 'dragend', 'dragstart', 'drop', 'compositionend', 'compositionstart', 'keydown', 'keypress', 'keyup', 'input', 'textInput', // Intentionally camelCase
  'copy', 'cut', 'paste', 'click', 'change', 'contextmenu', 'reset', 'submit'];
  function isDiscreteEventThatRequiresHydration(eventType) {
    return discreteReplayableEvents.indexOf(eventType) > -1;
  }

  function createQueuedReplayableEvent(blockedOn, domEventName, eventSystemFlags, targetContainer, nativeEvent) {
    return {
      blockedOn: blockedOn,
      domEventName: domEventName,
      eventSystemFlags: eventSystemFlags,
      nativeEvent: nativeEvent,
      targetContainers: [targetContainer]
    };
  }

  function clearIfContinuousEvent(domEventName, nativeEvent) {
    switch (domEventName) {
      case 'focusin':
      case 'focusout':
        queuedFocus = null;
        break;

      case 'dragenter':
      case 'dragleave':
        queuedDrag = null;
        break;

      case 'mouseover':
      case 'mouseout':
        queuedMouse = null;
        break;

      case 'pointerover':
      case 'pointerout':
        {
          var pointerId = nativeEvent.pointerId;
          queuedPointers.delete(pointerId);
          break;
        }

      case 'gotpointercapture':
      case 'lostpointercapture':
        {
          var _pointerId = nativeEvent.pointerId;
          queuedPointerCaptures.delete(_pointerId);
          break;
        }
    }
  }

  function accumulateOrCreateContinuousQueuedReplayableEvent(existingQueuedEvent, blockedOn, domEventName, eventSystemFlags, targetContainer, nativeEvent) {
    if (existingQueuedEvent === null || existingQueuedEvent.nativeEvent !== nativeEvent) {
      var queuedEvent = createQueuedReplayableEvent(blockedOn, domEventName, eventSystemFlags, targetContainer, nativeEvent);

      if (blockedOn !== null) {
        var _fiber2 = getInstanceFromNode(blockedOn);

        if (_fiber2 !== null) {
          // Attempt to increase the priority of this target.
          attemptContinuousHydration(_fiber2);
        }
      }

      return queuedEvent;
    } // If we have already queued this exact event, then it's because
    // the different event systems have different DOM event listeners.
    // We can accumulate the flags, and the targetContainers, and
    // store a single event to be replayed.


    existingQueuedEvent.eventSystemFlags |= eventSystemFlags;
    var targetContainers = existingQueuedEvent.targetContainers;

    if (targetContainer !== null && targetContainers.indexOf(targetContainer) === -1) {
      targetContainers.push(targetContainer);
    }

    return existingQueuedEvent;
  }

  function queueIfContinuousEvent(blockedOn, domEventName, eventSystemFlags, targetContainer, nativeEvent) {
    // These set relatedTarget to null because the replayed event will be treated as if we
    // moved from outside the window (no target) onto the target once it hydrates.
    // Instead of mutating we could clone the event.
    switch (domEventName) {
      case 'focusin':
        {
          var focusEvent = nativeEvent;
          queuedFocus = accumulateOrCreateContinuousQueuedReplayableEvent(queuedFocus, blockedOn, domEventName, eventSystemFlags, targetContainer, focusEvent);
          return true;
        }

      case 'dragenter':
        {
          var dragEvent = nativeEvent;
          queuedDrag = accumulateOrCreateContinuousQueuedReplayableEvent(queuedDrag, blockedOn, domEventName, eventSystemFlags, targetContainer, dragEvent);
          return true;
        }

      case 'mouseover':
        {
          var mouseEvent = nativeEvent;
          queuedMouse = accumulateOrCreateContinuousQueuedReplayableEvent(queuedMouse, blockedOn, domEventName, eventSystemFlags, targetContainer, mouseEvent);
          return true;
        }

      case 'pointerover':
        {
          var pointerEvent = nativeEvent;
          var pointerId = pointerEvent.pointerId;
          queuedPointers.set(pointerId, accumulateOrCreateContinuousQueuedReplayableEvent(queuedPointers.get(pointerId) || null, blockedOn, domEventName, eventSystemFlags, targetContainer, pointerEvent));
          return true;
        }

      case 'gotpointercapture':
        {
          var _pointerEvent = nativeEvent;
          var _pointerId2 = _pointerEvent.pointerId;
          queuedPointerCaptures.set(_pointerId2, accumulateOrCreateContinuousQueuedReplayableEvent(queuedPointerCaptures.get(_pointerId2) || null, blockedOn, domEventName, eventSystemFlags, targetContainer, _pointerEvent));
          return true;
        }
    }

    return false;
  } // Check if this target is unblocked. Returns true if it's unblocked.

  function attemptExplicitHydrationTarget(queuedTarget) {
    // TODO: This function shares a lot of logic with findInstanceBlockingEvent.
    // Try to unify them. It's a bit tricky since it would require two return
    // values.
    var targetInst = getClosestInstanceFromNode(queuedTarget.target);

    if (targetInst !== null) {
      var nearestMounted = getNearestMountedFiber(targetInst);

      if (nearestMounted !== null) {
        var tag = nearestMounted.tag;

        if (tag === SuspenseComponent) {
          var instance = getSuspenseInstanceFromFiber(nearestMounted);

          if (instance !== null) {
            // We're blocked on hydrating this boundary.
            // Increase its priority.
            queuedTarget.blockedOn = instance;
            attemptHydrationAtPriority(queuedTarget.priority, function () {
              attemptHydrationAtCurrentPriority(nearestMounted);
            });
            return;
          }
        } else if (tag === HostRoot) {
          var root = nearestMounted.stateNode;

          if (isRootDehydrated(root)) {
            queuedTarget.blockedOn = getContainerFromFiber(nearestMounted); // We don't currently have a way to increase the priority of
            // a root other than sync.

            return;
          }
        }
      }
    }

    queuedTarget.blockedOn = null;
  }

  function queueExplicitHydrationTarget(target) {
    // TODO: This will read the priority if it's dispatched by the React
    // event system but not native events. Should read window.event.type, like
    // we do for updates (getCurrentEventPriority).
    var updatePriority = getCurrentUpdatePriority$1();
    var queuedTarget = {
      blockedOn: null,
      target: target,
      priority: updatePriority
    };
    var i = 0;

    for (; i < queuedExplicitHydrationTargets.length; i++) {
      // Stop once we hit the first target with lower priority than
      if (!isHigherEventPriority(updatePriority, queuedExplicitHydrationTargets[i].priority)) {
        break;
      }
    }

    queuedExplicitHydrationTargets.splice(i, 0, queuedTarget);

    if (i === 0) {
      attemptExplicitHydrationTarget(queuedTarget);
    }
  }

  function attemptReplayContinuousQueuedEvent(queuedEvent) {
    if (queuedEvent.blockedOn !== null) {
      return false;
    }

    var targetContainers = queuedEvent.targetContainers;

    while (targetContainers.length > 0) {
      var targetContainer = targetContainers[0];
      var nextBlockedOn = findInstanceBlockingEvent(queuedEvent.domEventName, queuedEvent.eventSystemFlags, targetContainer, queuedEvent.nativeEvent);

      if (nextBlockedOn === null) {
        {
          var nativeEvent = queuedEvent.nativeEvent;
          var nativeEventClone = new nativeEvent.constructor(nativeEvent.type, nativeEvent);
          setReplayingEvent(nativeEventClone);
          nativeEvent.target.dispatchEvent(nativeEventClone);
          resetReplayingEvent();
        }
      } else {
        // We're still blocked. Try again later.
        var _fiber3 = getInstanceFromNode(nextBlockedOn);

        if (_fiber3 !== null) {
          attemptContinuousHydration(_fiber3);
        }

        queuedEvent.blockedOn = nextBlockedOn;
        return false;
      } // This target container was successfully dispatched. Try the next.


      targetContainers.shift();
    }

    return true;
  }

  function attemptReplayContinuousQueuedEventInMap(queuedEvent, key, map) {
    if (attemptReplayContinuousQueuedEvent(queuedEvent)) {
      map.delete(key);
    }
  }

  function replayUnblockedEvents() {
    hasScheduledReplayAttempt = false;


    if (queuedFocus !== null && attemptReplayContinuousQueuedEvent(queuedFocus)) {
      queuedFocus = null;
    }

    if (queuedDrag !== null && attemptReplayContinuousQueuedEvent(queuedDrag)) {
      queuedDrag = null;
    }

    if (queuedMouse !== null && attemptReplayContinuousQueuedEvent(queuedMouse)) {
      queuedMouse = null;
    }

    queuedPointers.forEach(attemptReplayContinuousQueuedEventInMap);
    queuedPointerCaptures.forEach(attemptReplayContinuousQueuedEventInMap);
  }

  function scheduleCallbackIfUnblocked(queuedEvent, unblocked) {
    if (queuedEvent.blockedOn === unblocked) {
      queuedEvent.blockedOn = null;

      if (!hasScheduledReplayAttempt) {
        hasScheduledReplayAttempt = true; // Schedule a callback to attempt replaying as many events as are
        // now unblocked. This first might not actually be unblocked yet.
        // We could check it early to avoid scheduling an unnecessary callback.

        unstable_scheduleCallback(unstable_NormalPriority, replayUnblockedEvents);
      }
    }
  }

  function retryIfBlockedOn(unblocked) {
    // Mark anything that was blocked on this as no longer blocked
    // and eligible for a replay.
    if (queuedDiscreteEvents.length > 0) {
      scheduleCallbackIfUnblocked(queuedDiscreteEvents[0], unblocked); // This is a exponential search for each boundary that commits. I think it's
      // worth it because we expect very few discrete events to queue up and once
      // we are actually fully unblocked it will be fast to replay them.

      for (var i = 1; i < queuedDiscreteEvents.length; i++) {
        var queuedEvent = queuedDiscreteEvents[i];

        if (queuedEvent.blockedOn === unblocked) {
          queuedEvent.blockedOn = null;
        }
      }
    }

    if (queuedFocus !== null) {
      scheduleCallbackIfUnblocked(queuedFocus, unblocked);
    }

    if (queuedDrag !== null) {
      scheduleCallbackIfUnblocked(queuedDrag, unblocked);
    }

    if (queuedMouse !== null) {
      scheduleCallbackIfUnblocked(queuedMouse, unblocked);
    }

    var unblock = function (queuedEvent) {
      return scheduleCallbackIfUnblocked(queuedEvent, unblocked);
    };

    queuedPointers.forEach(unblock);
    queuedPointerCaptures.forEach(unblock);

    for (var _i = 0; _i < queuedExplicitHydrationTargets.length; _i++) {
      var queuedTarget = queuedExplicitHydrationTargets[_i];

      if (queuedTarget.blockedOn === unblocked) {
        queuedTarget.blockedOn = null;
      }
    }

    while (queuedExplicitHydrationTargets.length > 0) {
      var nextExplicitTarget = queuedExplicitHydrationTargets[0];

      if (nextExplicitTarget.blockedOn !== null) {
        // We're still blocked.
        break;
      } else {
        attemptExplicitHydrationTarget(nextExplicitTarget);

        if (nextExplicitTarget.blockedOn === null) {
          // We're unblocked.
          queuedExplicitHydrationTargets.shift();
        }
      }
    }
  }

  var ReactCurrentBatchConfig = ReactSharedInternals.ReactCurrentBatchConfig; // TODO: can we stop exporting these?

  var _enabled = true; // This is exported in FB builds for use by legacy FB layer infra.
  // We'd like to remove this but it's not clear if this is safe.

  function setEnabled(enabled) {
    _enabled = !!enabled;
  }
  function isEnabled() {
    return _enabled;
  }
  function createEventListenerWrapperWithPriority(targetContainer, domEventName, eventSystemFlags) {
    var eventPriority = getEventPriority(domEventName);
    var listenerWrapper;

    switch (eventPriority) {
      case DiscreteEventPriority:
        listenerWrapper = dispatchDiscreteEvent;
        break;

      case ContinuousEventPriority:
        listenerWrapper = dispatchContinuousEvent;
        break;

      case DefaultEventPriority:
      default:
        listenerWrapper = dispatchEvent;
        break;
    }

    return listenerWrapper.bind(null, domEventName, eventSystemFlags, targetContainer);
  }

  function dispatchDiscreteEvent(domEventName, eventSystemFlags, container, nativeEvent) {
    var previousPriority = getCurrentUpdatePriority();
    var prevTransition = ReactCurrentBatchConfig.transition;
    ReactCurrentBatchConfig.transition = null;

    try {
      setCurrentUpdatePriority(DiscreteEventPriority);
      dispatchEvent(domEventName, eventSystemFlags, container, nativeEvent);
    } finally {
      setCurrentUpdatePriority(previousPriority);
      ReactCurrentBatchConfig.transition = prevTransition;
    }
  }

  function dispatchContinuousEvent(domEventName, eventSystemFlags, container, nativeEvent) {
    var previousPriority = getCurrentUpdatePriority();
    var prevTransition = ReactCurrentBatchConfig.transition;
    ReactCurrentBatchConfig.transition = null;

    try {
      setCurrentUpdatePriority(ContinuousEventPriority);
      dispatchEvent(domEventName, eventSystemFlags, container, nativeEvent);
    } finally {
      setCurrentUpdatePriority(previousPriority);
      ReactCurrentBatchConfig.transition = prevTransition;
    }
  }

  function dispatchEvent(domEventName, eventSystemFlags, targetContainer, nativeEvent) {
    if (!_enabled) {
      return;
    }

    {
      dispatchEventWithEnableCapturePhaseSelectiveHydrationWithoutDiscreteEventReplay(domEventName, eventSystemFlags, targetContainer, nativeEvent);
    }
  }

  function dispatchEventWithEnableCapturePhaseSelectiveHydrationWithoutDiscreteEventReplay(domEventName, eventSystemFlags, targetContainer, nativeEvent) {
    var blockedOn = findInstanceBlockingEvent(domEventName, eventSystemFlags, targetContainer, nativeEvent);

    if (blockedOn === null) {
      dispatchEventForPluginEventSystem(domEventName, eventSystemFlags, nativeEvent, return_targetInst, targetContainer);
      clearIfContinuousEvent(domEventName, nativeEvent);
      return;
    }

    if (queueIfContinuousEvent(blockedOn, domEventName, eventSystemFlags, targetContainer, nativeEvent)) {
      nativeEvent.stopPropagation();
      return;
    } // We need to clear only if we didn't queue because
    // queueing is accumulative.


    clearIfContinuousEvent(domEventName, nativeEvent);

    if (eventSystemFlags & IS_CAPTURE_PHASE && isDiscreteEventThatRequiresHydration(domEventName)) {
      while (blockedOn !== null) {
        var fiber = getInstanceFromNode(blockedOn);

        if (fiber !== null) {
          attemptSynchronousHydration(fiber);
        }

        var nextBlockedOn = findInstanceBlockingEvent(domEventName, eventSystemFlags, targetContainer, nativeEvent);

        if (nextBlockedOn === null) {
          dispatchEventForPluginEventSystem(domEventName, eventSystemFlags, nativeEvent, return_targetInst, targetContainer);
        }

        if (nextBlockedOn === blockedOn) {
          break;
        }

        blockedOn = nextBlockedOn;
      }

      if (blockedOn !== null) {
        nativeEvent.stopPropagation();
      }

      return;
    } // This is not replayable so we'll invoke it but without a target,
    // in case the event system needs to trace it.


    dispatchEventForPluginEventSystem(domEventName, eventSystemFlags, nativeEvent, null, targetContainer);
  }

  var return_targetInst = null; // Returns a SuspenseInstance or Container if it's blocked.
  // The return_targetInst field above is conceptually part of the return value.

  function findInstanceBlockingEvent(domEventName, eventSystemFlags, targetContainer, nativeEvent) {
    // TODO: Warn if _enabled is false.
    return_targetInst = null;
    var nativeEventTarget = getEventTarget(nativeEvent);
    var targetInst = getClosestInstanceFromNode(nativeEventTarget);

    if (targetInst !== null) {
      var nearestMounted = getNearestMountedFiber(targetInst);

      if (nearestMounted === null) {
        // This tree has been unmounted already. Dispatch without a target.
        targetInst = null;
      } else {
        var tag = nearestMounted.tag;

        if (tag === SuspenseComponent) {
          var instance = getSuspenseInstanceFromFiber(nearestMounted);

          if (instance !== null) {
            // Queue the event to be replayed later. Abort dispatching since we
            // don't want this event dispatched twice through the event system.
            // TODO: If this is the first discrete event in the queue. Schedule an increased
            // priority for this boundary.
            return instance;
          } // This shouldn't happen, something went wrong but to avoid blocking
          // the whole system, dispatch the event without a target.
          // TODO: Warn.


          targetInst = null;
        } else if (tag === HostRoot) {
          var root = nearestMounted.stateNode;

          if (isRootDehydrated(root)) {
            // If this happens during a replay something went wrong and it might block
            // the whole system.
            return getContainerFromFiber(nearestMounted);
          }

          targetInst = null;
        } else if (nearestMounted !== 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;
        }
      }
    }

    return_targetInst = targetInst; // We're not blocked on anything.

    return null;
  }
  function getEventPriority(domEventName) {
    switch (domEventName) {
      // Used by SimpleEventPlugin:
      case 'cancel':
      case 'click':
      case 'close':
      case 'contextmenu':
      case 'copy':
      case 'cut':
      case 'auxclick':
      case 'dblclick':
      case 'dragend':
      case 'dragstart':
      case 'drop':
      case 'focusin':
      case 'focusout':
      case 'input':
      case 'invalid':
      case 'keydown':
      case 'keypress':
      case 'keyup':
      case 'mousedown':
      case 'mouseup':
      case 'paste':
      case 'pause':
      case 'play':
      case 'pointercancel':
      case 'pointerdown':
      case 'pointerup':
      case 'ratechange':
      case 'reset':
      case 'resize':
      case 'seeked':
      case 'submit':
      case 'touchcancel':
      case 'touchend':
      case 'touchstart':
      case 'volumechange': // Used by polyfills:
      // eslint-disable-next-line no-fallthrough

      case 'change':
      case 'selectionchange':
      case 'textInput':
      case 'compositionstart':
      case 'compositionend':
      case 'compositionupdate': // Only enableCreateEventHandleAPI:
      // eslint-disable-next-line no-fallthrough

      case 'beforeblur':
      case 'afterblur': // Not used by React but could be by user code:
      // eslint-disable-next-line no-fallthrough

      case 'beforeinput':
      case 'blur':
      case 'fullscreenchange':
      case 'focus':
      case 'hashchange':
      case 'popstate':
      case 'select':
      case 'selectstart':
        return DiscreteEventPriority;

      case 'drag':
      case 'dragenter':
      case 'dragexit':
      case 'dragleave':
      case 'dragover':
      case 'mousemove':
      case 'mouseout':
      case 'mouseover':
      case 'pointermove':
      case 'pointerout':
      case 'pointerover':
      case 'scroll':
      case 'toggle':
      case 'touchmove':
      case 'wheel': // Not used by React but could be by user code:
      // eslint-disable-next-line no-fallthrough

      case 'mouseenter':
      case 'mouseleave':
      case 'pointerenter':
      case 'pointerleave':
        return ContinuousEventPriority;

      case 'message':
        {
          // We might be in the Scheduler callback.
          // Eventually this mechanism will be replaced by a check
          // of the current priority on the native scheduler.
          var schedulerPriority = getCurrentPriorityLevel();

          switch (schedulerPriority) {
            case ImmediatePriority:
              return DiscreteEventPriority;

            case UserBlockingPriority:
              return ContinuousEventPriority;

            case NormalPriority:
            case LowPriority:
              // TODO: Handle LowSchedulerPriority, somehow. Maybe the same lane as hydration.
              return DefaultEventPriority;

            case IdlePriority:
              return IdleEventPriority;

            default:
              return DefaultEventPriority;
          }
        }

      default:
        return DefaultEventPriority;
    }
  }

  function addEventBubbleListener(target, eventType, listener) {
    target.addEventListener(eventType, listener, false);
    return listener;
  }
  function addEventCaptureListener(target, eventType, listener) {
    target.addEventListener(eventType, listener, true);
    return listener;
  }
  function addEventCaptureListenerWithPassiveFlag(target, eventType, listener, passive) {
    target.addEventListener(eventType, listener, {
      capture: true,
      passive: passive
    });
    return listener;
  }
  function addEventBubbleListenerWithPassiveFlag(target, eventType, listener, passive) {
    target.addEventListener(eventType, listener, {
      passive: passive
    });
    return listener;
  }

  /**
   * 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;
    var startValue = startText;
    var startLength = startValue.length;
    var end;
    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;
  }

  /**
   * `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;
    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;
  }

  function functionThatReturnsTrue() {
    return true;
  }

  function functionThatReturnsFalse() {
    return false;
  } // This is intentionally a factory so that we have different returned constructors.
  // If we had a single constructor, it would be megamorphic and engines would deopt.


  function createSyntheticEvent(Interface) {
    /**
     * 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.
     */
    function SyntheticBaseEvent(reactName, reactEventType, targetInst, nativeEvent, nativeEventTarget) {
      this._reactName = reactName;
      this._targetInst = targetInst;
      this.type = reactEventType;
      this.nativeEvent = nativeEvent;
      this.target = nativeEventTarget;
      this.currentTarget = null;

      for (var _propName in Interface) {
        if (!Interface.hasOwnProperty(_propName)) {
          continue;
        }

        var normalize = Interface[_propName];

        if (normalize) {
          this[_propName] = normalize(nativeEvent);
        } 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(SyntheticBaseEvent.prototype, {
      preventDefault: function () {
        this.defaultPrevented = true;
        var event = this.nativeEvent;

        if (!event) {
          return;
        }

        if (event.preventDefault) {
          event.preventDefault(); // $FlowFixMe - flow is not aware of `unknown` in IE
        } 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(); // $FlowFixMe - flow is not aware of `unknown` in IE
        } 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 () {// Modern event system doesn't use pooling.
      },

      /**
       * Checks if this event should be released back into the pool.
       *
       * @return {boolean} True if this should not be released, false otherwise.
       */
      isPersistent: functionThatReturnsTrue
    });
    return SyntheticBaseEvent;
  }
  /**
   * @interface Event
   * @see http://www.w3.org/TR/DOM-Level-3-Events/
   */


  var EventInterface = {
    eventPhase: 0,
    bubbles: 0,
    cancelable: 0,
    timeStamp: function (event) {
      return event.timeStamp || Date.now();
    },
    defaultPrevented: 0,
    isTrusted: 0
  };
  var SyntheticEvent = createSyntheticEvent(EventInterface);

  var UIEventInterface = assign({}, EventInterface, {
    view: 0,
    detail: 0
  });

  var SyntheticUIEvent = createSyntheticEvent(UIEventInterface);
  var lastMovementX;
  var lastMovementY;
  var lastMouseEvent;

  function updateMouseMovementPolyfillState(event) {
    if (event !== lastMouseEvent) {
      if (lastMouseEvent && event.type === 'mousemove') {
        lastMovementX = event.screenX - lastMouseEvent.screenX;
        lastMovementY = event.screenY - lastMouseEvent.screenY;
      } else {
        lastMovementX = 0;
        lastMovementY = 0;
      }

      lastMouseEvent = event;
    }
  }
  /**
   * @interface MouseEvent
   * @see http://www.w3.org/TR/DOM-Level-3-Events/
   */


  var MouseEventInterface = assign({}, UIEventInterface, {
    screenX: 0,
    screenY: 0,
    clientX: 0,
    clientY: 0,
    pageX: 0,
    pageY: 0,
    ctrlKey: 0,
    shiftKey: 0,
    altKey: 0,
    metaKey: 0,
    getModifierState: getEventModifierState,
    button: 0,
    buttons: 0,
    relatedTarget: function (event) {
      if (event.relatedTarget === undefined) return event.fromElement === event.srcElement ? event.toElement : event.fromElement;
      return event.relatedTarget;
    },
    movementX: function (event) {
      if ('movementX' in event) {
        return event.movementX;
      }

      updateMouseMovementPolyfillState(event);
      return lastMovementX;
    },
    movementY: function (event) {
      if ('movementY' in event) {
        return event.movementY;
      } // Don't need to call updateMouseMovementPolyfillState() here
      // because it's guaranteed to have already run when movementX
      // was copied.


      return lastMovementY;
    }
  });

  var SyntheticMouseEvent = createSyntheticEvent(MouseEventInterface);
  /**
   * @interface DragEvent
   * @see http://www.w3.org/TR/DOM-Level-3-Events/
   */

  var DragEventInterface = assign({}, MouseEventInterface, {
    dataTransfer: 0
  });

  var SyntheticDragEvent = createSyntheticEvent(DragEventInterface);
  /**
   * @interface FocusEvent
   * @see http://www.w3.org/TR/DOM-Level-3-Events/
   */

  var FocusEventInterface = assign({}, UIEventInterface, {
    relatedTarget: 0
  });

  var SyntheticFocusEvent = createSyntheticEvent(FocusEventInterface);
  /**
   * @interface Event
   * @see http://www.w3.org/TR/css3-animations/#AnimationEvent-interface
   * @see https://developer.mozilla.org/en-US/docs/Web/API/AnimationEvent
   */

  var AnimationEventInterface = assign({}, EventInterface, {
    animationName: 0,
    elapsedTime: 0,
    pseudoElement: 0
  });

  var SyntheticAnimationEvent = createSyntheticEvent(AnimationEventInterface);
  /**
   * @interface Event
   * @see http://www.w3.org/TR/clipboard-apis/
   */

  var ClipboardEventInterface = assign({}, EventInterface, {
    clipboardData: function (event) {
      return 'clipboardData' in event ? event.clipboardData : window.clipboardData;
    }
  });

  var SyntheticClipboardEvent = createSyntheticEvent(ClipboardEventInterface);
  /**
   * @interface Event
   * @see http://www.w3.org/TR/DOM-Level-3-Events/#events-compositionevents
   */

  var CompositionEventInterface = assign({}, EventInterface, {
    data: 0
  });

  var SyntheticCompositionEvent = createSyntheticEvent(CompositionEventInterface);
  /**
   * @interface Event
   * @see http://www.w3.org/TR/2013/WD-DOM-Level-3-Events-20131105
   *      /#events-inputevents
   */
  // Happens to share the same list for now.

  var SyntheticInputEvent = SyntheticCompositionEvent;
  /**
   * 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 '';
  }
  /**
   * Translation from modifier key to the associated property in the event.
   * @see http://www.w3.org/TR/DOM-Level-3-Events/#keys-Modifiers
   */


  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.

  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;
  }
  /**
   * @interface KeyboardEvent
   * @see http://www.w3.org/TR/DOM-Level-3-Events/
   */


  var KeyboardEventInterface = assign({}, UIEventInterface, {
    key: getEventKey,
    code: 0,
    location: 0,
    ctrlKey: 0,
    shiftKey: 0,
    altKey: 0,
    metaKey: 0,
    repeat: 0,
    locale: 0,
    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;
    }
  });

  var SyntheticKeyboardEvent = createSyntheticEvent(KeyboardEventInterface);
  /**
   * @interface PointerEvent
   * @see http://www.w3.org/TR/pointerevents/
   */

  var PointerEventInterface = assign({}, MouseEventInterface, {
    pointerId: 0,
    width: 0,
    height: 0,
    pressure: 0,
    tangentialPressure: 0,
    tiltX: 0,
    tiltY: 0,
    twist: 0,
    pointerType: 0,
    isPrimary: 0
  });

  var SyntheticPointerEvent = createSyntheticEvent(PointerEventInterface);
  /**
   * @interface TouchEvent
   * @see http://www.w3.org/TR/touch-events/
   */

  var TouchEventInterface = assign({}, UIEventInterface, {
    touches: 0,
    targetTouches: 0,
    changedTouches: 0,
    altKey: 0,
    metaKey: 0,
    ctrlKey: 0,
    shiftKey: 0,
    getModifierState: getEventModifierState
  });

  var SyntheticTouchEvent = createSyntheticEvent(TouchEventInterface);
  /**
   * @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 TransitionEventInterface = assign({}, EventInterface, {
    propertyName: 0,
    elapsedTime: 0,
    pseudoElement: 0
  });

  var SyntheticTransitionEvent = createSyntheticEvent(TransitionEventInterface);
  /**
   * @interface WheelEvent
   * @see http://www.w3.org/TR/DOM-Level-3-Events/
   */

  var WheelEventInterface = assign({}, MouseEventInterface, {
    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: 0,
    // 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: 0
  });

  var SyntheticWheelEvent = createSyntheticEvent(WheelEventInterface);

  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);

  function registerEvents() {
    registerTwoPhaseEvent('onBeforeInput', ['compositionend', 'keypress', 'textInput', 'paste']);
    registerTwoPhaseEvent('onCompositionEnd', ['compositionend', 'focusout', 'keydown', 'keypress', 'keyup', 'mousedown']);
    registerTwoPhaseEvent('onCompositionStart', ['compositionstart', 'focusout', 'keydown', 'keypress', 'keyup', 'mousedown']);
    registerTwoPhaseEvent('onCompositionUpdate', ['compositionupdate', 'focusout', 'keydown', 'keypress', 'keyup', 'mousedown']);
  } // 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.
   */


  function getCompositionEventType(domEventName) {
    switch (domEventName) {
      case 'compositionstart':
        return 'onCompositionStart';

      case 'compositionend':
        return 'onCompositionEnd';

      case 'compositionupdate':
        return 'onCompositionUpdate';
    }
  }
  /**
   * Does our fallback best-guess model think this event signifies that
   * composition has begun?
   */


  function isFallbackCompositionStart(domEventName, nativeEvent) {
    return domEventName === 'keydown' && nativeEvent.keyCode === START_KEYCODE;
  }
  /**
   * Does our fallback mode think that this event is the end of composition?
   */


  function isFallbackCompositionEnd(domEventName, nativeEvent) {
    switch (domEventName) {
      case 'keyup':
        // Command keys insert or clear IME input.
        return END_KEYCODES.indexOf(nativeEvent.keyCode) !== -1;

      case 'keydown':
        // Expect IME keyCode on each keydown. If we get any other
        // code we must have exited earlier.
        return nativeEvent.keyCode !== START_KEYCODE;

      case 'keypress':
      case 'mousedown':
      case 'focusout':
        // 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(dispatchQueue, domEventName, targetInst, nativeEvent, nativeEventTarget) {
    var eventType;
    var fallbackData;

    if (canUseCompositionEvent) {
      eventType = getCompositionEventType(domEventName);
    } else if (!isComposing) {
      if (isFallbackCompositionStart(domEventName, nativeEvent)) {
        eventType = 'onCompositionStart';
      }
    } else if (isFallbackCompositionEnd(domEventName, nativeEvent)) {
      eventType = 'onCompositionEnd';
    }

    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 === 'onCompositionStart') {
        isComposing = initialize(nativeEventTarget);
      } else if (eventType === 'onCompositionEnd') {
        if (isComposing) {
          fallbackData = getData();
        }
      }
    }

    var listeners = accumulateTwoPhaseListeners(targetInst, eventType);

    if (listeners.length > 0) {
      var event = new SyntheticCompositionEvent(eventType, domEventName, null, nativeEvent, nativeEventTarget);
      dispatchQueue.push({
        event: event,
        listeners: listeners
      });

      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;
        }
      }
    }
  }

  function getNativeBeforeInputChars(domEventName, nativeEvent) {
    switch (domEventName) {
      case 'compositionend':
        return getDataFromCustomEvent(nativeEvent);

      case 'keypress':
        /**
         * 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 'textInput':
        // 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.
   */


  function getFallbackBeforeInputChars(domEventName, 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 (domEventName === 'compositionend' || !canUseCompositionEvent && isFallbackCompositionEnd(domEventName, nativeEvent)) {
        var chars = getData();
        reset();
        isComposing = false;
        return chars;
      }

      return null;
    }

    switch (domEventName) {
      case '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 'keypress':
        /**
         * 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 'compositionend':
        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(dispatchQueue, domEventName, targetInst, nativeEvent, nativeEventTarget) {
    var chars;

    if (canUseTextInputEvent) {
      chars = getNativeBeforeInputChars(domEventName, nativeEvent);
    } else {
      chars = getFallbackBeforeInputChars(domEventName, nativeEvent);
    } // If no characters are being inserted, no BeforeInput event should
    // be fired.


    if (!chars) {
      return null;
    }

    var listeners = accumulateTwoPhaseListeners(targetInst, 'onBeforeInput');

    if (listeners.length > 0) {
      var event = new SyntheticInputEvent('onBeforeInput', 'beforeinput', null, nativeEvent, nativeEventTarget);
      dispatchQueue.push({
        event: event,
        listeners: listeners
      });
      event.data = chars;
    }
  }
  /**
   * 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.
   */


  function extractEvents(dispatchQueue, domEventName, targetInst, nativeEvent, nativeEventTarget, eventSystemFlags, targetContainer) {
    extractCompositionEvent(dispatchQueue, domEventName, targetInst, nativeEvent, nativeEventTarget);
    extractBeforeInputEvent(dispatchQueue, domEventName, targetInst, nativeEvent, nativeEventTarget);
  }

  /**
   * @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;
  }

  /**
   * 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 registerEvents$1() {
    registerTwoPhaseEvent('onChange', ['change', 'click', 'focusin', 'focusout', 'input', 'keydown', 'keyup', 'selectionchange']);
  }

  function createAndAccumulateChangeEvent(dispatchQueue, inst, nativeEvent, target) {
    // Flag this event loop as needing state restore.
    enqueueStateRestore(target);
    var listeners = accumulateTwoPhaseListeners(inst, 'onChange');

    if (listeners.length > 0) {
      var event = new SyntheticEvent('onChange', 'change', null, nativeEvent, target);
      dispatchQueue.push({
        event: event,
        listeners: listeners
      });
    }
  }
  /**
   * 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 dispatchQueue = [];
    createAndAccumulateChangeEvent(dispatchQueue, 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, dispatchQueue);
  }

  function runEventInBatch(dispatchQueue) {
    processDispatchQueue(dispatchQueue, 0);
  }

  function getInstIfValueChanged(targetInst) {
    var targetNode = getNodeFromInstance(targetInst);

    if (updateValueIfChanged(targetNode)) {
      return targetInst;
    }
  }

  function getTargetInstForChangeEvent(domEventName, targetInst) {
    if (domEventName === '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(domEventName, target, targetInst) {
    if (domEventName === 'focusin') {
      // 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 (domEventName === 'focusout') {
      stopWatchingForValueChange();
    }
  } // For IE8 and IE9.


  function getTargetInstForInputEventPolyfill(domEventName, targetInst) {
    if (domEventName === 'selectionchange' || domEventName === 'keyup' || domEventName === 'keydown') {
      // 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(domEventName, targetInst) {
    if (domEventName === 'click') {
      return getInstIfValueChanged(targetInst);
    }
  }

  function getTargetInstForInputOrChangeEvent(domEventName, targetInst) {
    if (domEventName === 'input' || domEventName === 'change') {
      return getInstIfValueChanged(targetInst);
    }
  }

  function handleControlledInputBlur(node) {
    var state = node._wrapperState;

    if (!state || !state.controlled || node.type !== 'number') {
      return;
    }

    {
      // 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
   */


  function extractEvents$1(dispatchQueue, domEventName, targetInst, nativeEvent, nativeEventTarget, eventSystemFlags, targetContainer) {
    var targetNode = targetInst ? getNodeFromInstance(targetInst) : window;
    var getTargetInstFunc, handleEventFunc;

    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(domEventName, targetInst);

      if (inst) {
        createAndAccumulateChangeEvent(dispatchQueue, inst, nativeEvent, nativeEventTarget);
        return;
      }
    }

    if (handleEventFunc) {
      handleEventFunc(domEventName, targetNode, targetInst);
    } // When blurring, set the value attribute for number inputs


    if (domEventName === 'focusout') {
      handleControlledInputBlur(targetNode);
    }
  }

  function registerEvents$2() {
    registerDirectEvent('onMouseEnter', ['mouseout', 'mouseover']);
    registerDirectEvent('onMouseLeave', ['mouseout', 'mouseover']);
    registerDirectEvent('onPointerEnter', ['pointerout', 'pointerover']);
    registerDirectEvent('onPointerLeave', ['pointerout', 'pointerover']);
  }
  /**
   * 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.
   */


  function extractEvents$2(dispatchQueue, domEventName, targetInst, nativeEvent, nativeEventTarget, eventSystemFlags, targetContainer) {
    var isOverEvent = domEventName === 'mouseover' || domEventName === 'pointerover';
    var isOutEvent = domEventName === 'mouseout' || domEventName === 'pointerout';

    if (isOverEvent && !isReplayingEvent(nativeEvent)) {
      // If this is an over event with a target, we might have already dispatched
      // the event in the out event of the other target. If this is replayed,
      // then it's because we couldn't dispatch against this target previously
      // so we have to do it now instead.
      var related = nativeEvent.relatedTarget || nativeEvent.fromElement;

      if (related) {
        // If the related node is managed by React, we can assume that we have
        // already dispatched the corresponding events during its mouseout.
        if (getClosestInstanceFromNode(related) || isContainerMarkedAsRoot(related)) {
          return;
        }
      }
    }

    if (!isOutEvent && !isOverEvent) {
      // Must not be a mouse or pointer in or out - ignoring.
      return;
    }

    var win; // TODO: why is this nullable in the types but we read from it?

    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;
    var to;

    if (isOutEvent) {
      var _related = nativeEvent.relatedTarget || nativeEvent.toElement;

      from = targetInst;
      to = _related ? getClosestInstanceFromNode(_related) : null;

      if (to !== null) {
        var nearestMounted = getNearestMountedFiber(to);

        if (to !== nearestMounted || to.tag !== HostComponent && to.tag !== HostText) {
          to = null;
        }
      }
    } else {
      // Moving to a node from outside the window.
      from = null;
      to = targetInst;
    }

    if (from === to) {
      // Nothing pertains to our managed components.
      return;
    }

    var SyntheticEventCtor = SyntheticMouseEvent;
    var leaveEventType = 'onMouseLeave';
    var enterEventType = 'onMouseEnter';
    var eventTypePrefix = 'mouse';

    if (domEventName === 'pointerout' || domEventName === 'pointerover') {
      SyntheticEventCtor = SyntheticPointerEvent;
      leaveEventType = 'onPointerLeave';
      enterEventType = 'onPointerEnter';
      eventTypePrefix = 'pointer';
    }

    var fromNode = from == null ? win : getNodeFromInstance(from);
    var toNode = to == null ? win : getNodeFromInstance(to);
    var leave = new SyntheticEventCtor(leaveEventType, eventTypePrefix + 'leave', from, nativeEvent, nativeEventTarget);
    leave.target = fromNode;
    leave.relatedTarget = toNode;
    var enter = null; // We should only process this nativeEvent if we are processing
    // the first ancestor. Next time, we will ignore the event.

    var nativeTargetInst = getClosestInstanceFromNode(nativeEventTarget);

    if (nativeTargetInst === targetInst) {
      var enterEvent = new SyntheticEventCtor(enterEventType, eventTypePrefix + 'enter', to, nativeEvent, nativeEventTarget);
      enterEvent.target = toNode;
      enterEvent.relatedTarget = fromNode;
      enter = enterEvent;
    }

    accumulateEnterLeaveTwoPhaseListeners(dispatchQueue, leave, enter, from, to);
  }

  /**
   * 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 objectIs = typeof Object.is === 'function' ? Object.is : is;

  /**
   * 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 (objectIs(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++) {
      var currentKey = keysA[i];

      if (!hasOwnProperty.call(objB, currentKey) || !objectIs(objA[currentKey], objB[currentKey])) {
        return false;
      }
    }

    return true;
  }

  /**
   * 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(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(input) {
    var selection;

    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;
    var 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;

  function registerEvents$3() {
    registerTwoPhaseEvent('onSelect', ['focusout', 'contextmenu', 'dragend', 'focusin', 'keydown', 'keyup', 'mousedown', 'mouseup', 'selectionchange']);
  }

  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.
   */

  function getSelection$1(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.
   */


  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(dispatchQueue, 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;
    } // Only fire when selection has actually changed.


    var currentSelection = getSelection$1(activeElement$1);

    if (!lastSelection || !shallowEqual(lastSelection, currentSelection)) {
      lastSelection = currentSelection;
      var listeners = accumulateTwoPhaseListeners(activeElementInst$1, 'onSelect');

      if (listeners.length > 0) {
        var event = new SyntheticEvent('onSelect', 'select', null, nativeEvent, nativeEventTarget);
        dispatchQueue.push({
          event: event,
          listeners: listeners
        });
        event.target = activeElement$1;
      }
    }
  }
  /**
   * 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.
   */


  function extractEvents$3(dispatchQueue, domEventName, targetInst, nativeEvent, nativeEventTarget, eventSystemFlags, targetContainer) {
    var targetNode = targetInst ? getNodeFromInstance(targetInst) : window;

    switch (domEventName) {
      // Track the input node that has focus.
      case 'focusin':
        if (isTextInputElement(targetNode) || targetNode.contentEditable === 'true') {
          activeElement$1 = targetNode;
          activeElementInst$1 = targetInst;
          lastSelection = null;
        }

        break;

      case 'focusout':
        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 'mousedown':
        mouseDown = true;
        break;

      case 'contextmenu':
      case 'mouseup':
      case 'dragend':
        mouseDown = false;
        constructSelectEvent(dispatchQueue, nativeEvent, nativeEventTarget);
        break;
      // 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 'selectionchange':
        if (skipSelectionChangeEvent) {
          break;
        }

      // falls through

      case 'keydown':
      case 'keyup':
        constructSelectEvent(dispatchQueue, nativeEvent, nativeEventTarget);
    }
  }

  /**
   * 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;
  }

  var ANIMATION_END = getVendorPrefixedEventName('animationend');
  var ANIMATION_ITERATION = getVendorPrefixedEventName('animationiteration');
  var ANIMATION_START = getVendorPrefixedEventName('animationstart');
  var TRANSITION_END = getVendorPrefixedEventName('transitionend');

  var topLevelEventsToReactNames = new Map(); // NOTE: Capitalization is important in this list!
  //
  // E.g. it needs "pointerDown", not "pointerdown".
  // This is because we derive both React name ("onPointerDown")
  // and DOM name ("pointerdown") from the same list.
  //
  // Exceptions that don't match this convention are listed separately.
  //
  // prettier-ignore

  var simpleEventPluginEvents = ['abort', 'auxClick', 'cancel', 'canPlay', 'canPlayThrough', 'click', 'close', 'contextMenu', 'copy', 'cut', 'drag', 'dragEnd', 'dragEnter', 'dragExit', 'dragLeave', 'dragOver', 'dragStart', 'drop', 'durationChange', 'emptied', 'encrypted', 'ended', 'error', 'gotPointerCapture', 'input', 'invalid', 'keyDown', 'keyPress', 'keyUp', 'load', 'loadedData', 'loadedMetadata', 'loadStart', 'lostPointerCapture', 'mouseDown', 'mouseMove', 'mouseOut', 'mouseOver', 'mouseUp', 'paste', 'pause', 'play', 'playing', 'pointerCancel', 'pointerDown', 'pointerMove', 'pointerOut', 'pointerOver', 'pointerUp', 'progress', 'rateChange', 'reset', 'resize', 'seeked', 'seeking', 'stalled', 'submit', 'suspend', 'timeUpdate', 'touchCancel', 'touchEnd', 'touchStart', 'volumeChange', 'scroll', 'toggle', 'touchMove', 'waiting', 'wheel'];

  function registerSimpleEvent(domEventName, reactName) {
    topLevelEventsToReactNames.set(domEventName, reactName);
    registerTwoPhaseEvent(reactName, [domEventName]);
  }

  function registerSimpleEvents() {
    for (var i = 0; i < simpleEventPluginEvents.length; i++) {
      var eventName = simpleEventPluginEvents[i];
      var domEventName = eventName.toLowerCase();
      var capitalizedEvent = eventName[0].toUpperCase() + eventName.slice(1);
      registerSimpleEvent(domEventName, 'on' + capitalizedEvent);
    } // Special cases where event names don't match.


    registerSimpleEvent(ANIMATION_END, 'onAnimationEnd');
    registerSimpleEvent(ANIMATION_ITERATION, 'onAnimationIteration');
    registerSimpleEvent(ANIMATION_START, 'onAnimationStart');
    registerSimpleEvent('dblclick', 'onDoubleClick');
    registerSimpleEvent('focusin', 'onFocus');
    registerSimpleEvent('focusout', 'onBlur');
    registerSimpleEvent(TRANSITION_END, 'onTransitionEnd');
  }

  function extractEvents$4(dispatchQueue, domEventName, targetInst, nativeEvent, nativeEventTarget, eventSystemFlags, targetContainer) {
    var reactName = topLevelEventsToReactNames.get(domEventName);

    if (reactName === undefined) {
      return;
    }

    var SyntheticEventCtor = SyntheticEvent;
    var reactEventType = domEventName;

    switch (domEventName) {
      case 'keypress':
        // 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;
        }

      /* falls through */

      case 'keydown':
      case 'keyup':
        SyntheticEventCtor = SyntheticKeyboardEvent;
        break;

      case 'focusin':
        reactEventType = 'focus';
        SyntheticEventCtor = SyntheticFocusEvent;
        break;

      case 'focusout':
        reactEventType = 'blur';
        SyntheticEventCtor = SyntheticFocusEvent;
        break;

      case 'beforeblur':
      case 'afterblur':
        SyntheticEventCtor = SyntheticFocusEvent;
        break;

      case 'click':
        // Firefox creates a click event on right mouse clicks. This removes the
        // unwanted click events.
        if (nativeEvent.button === 2) {
          return;
        }

      /* falls through */

      case 'auxclick':
      case 'dblclick':
      case 'mousedown':
      case 'mousemove':
      case 'mouseup': // TODO: Disabled elements should not respond to mouse events

      /* falls through */

      case 'mouseout':
      case 'mouseover':
      case 'contextmenu':
        SyntheticEventCtor = SyntheticMouseEvent;
        break;

      case 'drag':
      case 'dragend':
      case 'dragenter':
      case 'dragexit':
      case 'dragleave':
      case 'dragover':
      case 'dragstart':
      case 'drop':
        SyntheticEventCtor = SyntheticDragEvent;
        break;

      case 'touchcancel':
      case 'touchend':
      case 'touchmove':
      case 'touchstart':
        SyntheticEventCtor = SyntheticTouchEvent;
        break;

      case ANIMATION_END:
      case ANIMATION_ITERATION:
      case ANIMATION_START:
        SyntheticEventCtor = SyntheticAnimationEvent;
        break;

      case TRANSITION_END:
        SyntheticEventCtor = SyntheticTransitionEvent;
        break;

      case 'scroll':
        SyntheticEventCtor = SyntheticUIEvent;
        break;

      case 'wheel':
        SyntheticEventCtor = SyntheticWheelEvent;
        break;

      case 'copy':
      case 'cut':
      case 'paste':
        SyntheticEventCtor = SyntheticClipboardEvent;
        break;

      case 'gotpointercapture':
      case 'lostpointercapture':
      case 'pointercancel':
      case 'pointerdown':
      case 'pointermove':
      case 'pointerout':
      case 'pointerover':
      case 'pointerup':
        SyntheticEventCtor = SyntheticPointerEvent;
        break;
    }

    var inCapturePhase = (eventSystemFlags & IS_CAPTURE_PHASE) !== 0;

    {
      // Some events don't bubble in the browser.
      // In the past, React has always bubbled them, but this can be surprising.
      // We're going to try aligning closer to the browser behavior by not bubbling
      // them in React either. We'll start by not bubbling onScroll, and then expand.
      var accumulateTargetOnly = !inCapturePhase && // TODO: ideally, we'd eventually add all events from
      // nonDelegatedEvents list in DOMPluginEventSystem.
      // Then we can remove this special list.
      // This is a breaking change that can wait until React 18.
      domEventName === 'scroll';

      var _listeners = accumulateSinglePhaseListeners(targetInst, reactName, nativeEvent.type, inCapturePhase, accumulateTargetOnly);

      if (_listeners.length > 0) {
        // Intentionally create event lazily.
        var _event = new SyntheticEventCtor(reactName, reactEventType, null, nativeEvent, nativeEventTarget);

        dispatchQueue.push({
          event: _event,
          listeners: _listeners
        });
      }
    }
  }

  // TODO: remove top-level side effect.
  registerSimpleEvents();
  registerEvents$2();
  registerEvents$1();
  registerEvents$3();
  registerEvents();

  function extractEvents$5(dispatchQueue, domEventName, targetInst, nativeEvent, nativeEventTarget, eventSystemFlags, targetContainer) {
    // TODO: we should remove the concept of a "SimpleEventPlugin".
    // This is the basic functionality of the event system. All
    // the other plugins are essentially polyfills. So the plugin
    // should probably be inlined somewhere and have its logic
    // be core the to event system. This would potentially allow
    // us to ship builds of React without the polyfilled plugins below.
    extractEvents$4(dispatchQueue, domEventName, targetInst, nativeEvent, nativeEventTarget, eventSystemFlags);
    var shouldProcessPolyfillPlugins = (eventSystemFlags & SHOULD_NOT_PROCESS_POLYFILL_EVENT_PLUGINS) === 0; // We don't process these events unless we are in the
    // event's native "bubble" phase, which means that we're
    // not in the capture phase. That's because we emulate
    // the capture phase here still. This is a trade-off,
    // because in an ideal world we would not emulate and use
    // the phases properly, like we do with the SimpleEvent
    // plugin. However, the plugins below either expect
    // emulation (EnterLeave) or use state localized to that
    // plugin (BeforeInput, Change, Select). The state in
    // these modules complicates things, as you'll essentially
    // get the case where the capture phase event might change
    // state, only for the following bubble event to come in
    // later and not trigger anything as the state now
    // invalidates the heuristics of the event plugin. We
    // could alter all these plugins to work in such ways, but
    // that might cause other unknown side-effects that we
    // can't foresee right now.

    if (shouldProcessPolyfillPlugins) {
      extractEvents$2(dispatchQueue, domEventName, targetInst, nativeEvent, nativeEventTarget);
      extractEvents$1(dispatchQueue, domEventName, targetInst, nativeEvent, nativeEventTarget);
      extractEvents$3(dispatchQueue, domEventName, targetInst, nativeEvent, nativeEventTarget);
      extractEvents(dispatchQueue, domEventName, targetInst, nativeEvent, nativeEventTarget);
    }
  } // List of events that need to be individually attached to media elements.


  var mediaEventTypes = ['abort', 'canplay', 'canplaythrough', 'durationchange', 'emptied', 'encrypted', 'ended', 'error', 'loadeddata', 'loadedmetadata', 'loadstart', 'pause', 'play', 'playing', 'progress', 'ratechange', 'resize', 'seeked', 'seeking', 'stalled', 'suspend', 'timeupdate', 'volumechange', 'waiting']; // We should not delegate these events to the container, but rather
  // set them on the actual target element itself. This is primarily
  // because these events do not consistently bubble in the DOM.

  var nonDelegatedEvents = new Set(['cancel', 'close', 'invalid', 'load', 'scroll', 'toggle'].concat(mediaEventTypes));

  function executeDispatch(event, listener, currentTarget) {
    var type = event.type || 'unknown-event';
    event.currentTarget = currentTarget;
    invokeGuardedCallbackAndCatchFirstError(type, listener, undefined, event);
    event.currentTarget = null;
  }

  function processDispatchQueueItemsInOrder(event, dispatchListeners, inCapturePhase) {
    var previousInstance;

    if (inCapturePhase) {
      for (var i = dispatchListeners.length - 1; i >= 0; i--) {
        var _dispatchListeners$i = dispatchListeners[i],
            instance = _dispatchListeners$i.instance,
            currentTarget = _dispatchListeners$i.currentTarget,
            listener = _dispatchListeners$i.listener;

        if (instance !== previousInstance && event.isPropagationStopped()) {
          return;
        }

        executeDispatch(event, listener, currentTarget);
        previousInstance = instance;
      }
    } else {
      for (var _i = 0; _i < dispatchListeners.length; _i++) {
        var _dispatchListeners$_i = dispatchListeners[_i],
            _instance = _dispatchListeners$_i.instance,
            _currentTarget = _dispatchListeners$_i.currentTarget,
            _listener = _dispatchListeners$_i.listener;

        if (_instance !== previousInstance && event.isPropagationStopped()) {
          return;
        }

        executeDispatch(event, _listener, _currentTarget);
        previousInstance = _instance;
      }
    }
  }

  function processDispatchQueue(dispatchQueue, eventSystemFlags) {
    var inCapturePhase = (eventSystemFlags & IS_CAPTURE_PHASE) !== 0;

    for (var i = 0; i < dispatchQueue.length; i++) {
      var _dispatchQueue$i = dispatchQueue[i],
          event = _dispatchQueue$i.event,
          listeners = _dispatchQueue$i.listeners;
      processDispatchQueueItemsInOrder(event, listeners, inCapturePhase); //  event system doesn't use pooling.
    } // This would be a good time to rethrow if any of the event handlers threw.


    rethrowCaughtError();
  }

  function dispatchEventsForPlugins(domEventName, eventSystemFlags, nativeEvent, targetInst, targetContainer) {
    var nativeEventTarget = getEventTarget(nativeEvent);
    var dispatchQueue = [];
    extractEvents$5(dispatchQueue, domEventName, targetInst, nativeEvent, nativeEventTarget, eventSystemFlags);
    processDispatchQueue(dispatchQueue, eventSystemFlags);
  }

  function listenToNonDelegatedEvent(domEventName, targetElement) {
    {
      if (!nonDelegatedEvents.has(domEventName)) {
        error('Did not expect a listenToNonDelegatedEvent() call for "%s". ' + 'This is a bug in React. Please file an issue.', domEventName);
      }
    }

    var isCapturePhaseListener = false;
    var listenerSet = getEventListenerSet(targetElement);
    var listenerSetKey = getListenerSetKey(domEventName, isCapturePhaseListener);

    if (!listenerSet.has(listenerSetKey)) {
      addTrappedEventListener(targetElement, domEventName, IS_NON_DELEGATED, isCapturePhaseListener);
      listenerSet.add(listenerSetKey);
    }
  }
  function listenToNativeEvent(domEventName, isCapturePhaseListener, target) {
    {
      if (nonDelegatedEvents.has(domEventName) && !isCapturePhaseListener) {
        error('Did not expect a listenToNativeEvent() call for "%s" in the bubble phase. ' + 'This is a bug in React. Please file an issue.', domEventName);
      }
    }

    var eventSystemFlags = 0;

    if (isCapturePhaseListener) {
      eventSystemFlags |= IS_CAPTURE_PHASE;
    }

    addTrappedEventListener(target, domEventName, eventSystemFlags, isCapturePhaseListener);
  } // This is only used by createEventHandle when the
  var listeningMarker = '_reactListening' + Math.random().toString(36).slice(2);
  function listenToAllSupportedEvents(rootContainerElement) {
    if (!rootContainerElement[listeningMarker]) {
      rootContainerElement[listeningMarker] = true;
      allNativeEvents.forEach(function (domEventName) {
        // We handle selectionchange separately because it
        // doesn't bubble and needs to be on the document.
        if (domEventName !== 'selectionchange') {
          if (!nonDelegatedEvents.has(domEventName)) {
            listenToNativeEvent(domEventName, false, rootContainerElement);
          }

          listenToNativeEvent(domEventName, true, rootContainerElement);
        }
      });
      var ownerDocument = rootContainerElement.nodeType === DOCUMENT_NODE ? rootContainerElement : rootContainerElement.ownerDocument;

      if (ownerDocument !== null) {
        // The selectionchange event also needs deduplication
        // but it is attached to the document.
        if (!ownerDocument[listeningMarker]) {
          ownerDocument[listeningMarker] = true;
          listenToNativeEvent('selectionchange', false, ownerDocument);
        }
      }
    }
  }

  function addTrappedEventListener(targetContainer, domEventName, eventSystemFlags, isCapturePhaseListener, isDeferredListenerForLegacyFBSupport) {
    var listener = createEventListenerWrapperWithPriority(targetContainer, domEventName, eventSystemFlags); // If passive option is not supported, then the event will be
    // active and not passive.

    var isPassiveListener = undefined;

    if (passiveBrowserEventsSupported) {
      // Browsers introduced an intervention, making these events
      // passive by default on document. React doesn't bind them
      // to document anymore, but changing this now would undo
      // the performance wins from the change. So we emulate
      // the existing behavior manually on the roots now.
      // https://github.com/facebook/react/issues/19651
      if (domEventName === 'touchstart' || domEventName === 'touchmove' || domEventName === 'wheel') {
        isPassiveListener = true;
      }
    }

    targetContainer =  targetContainer;
    var unsubscribeListener; // When legacyFBSupport is enabled, it's for when we


    if (isCapturePhaseListener) {
      if (isPassiveListener !== undefined) {
        unsubscribeListener = addEventCaptureListenerWithPassiveFlag(targetContainer, domEventName, listener, isPassiveListener);
      } else {
        unsubscribeListener = addEventCaptureListener(targetContainer, domEventName, listener);
      }
    } else {
      if (isPassiveListener !== undefined) {
        unsubscribeListener = addEventBubbleListenerWithPassiveFlag(targetContainer, domEventName, listener, isPassiveListener);
      } else {
        unsubscribeListener = addEventBubbleListener(targetContainer, domEventName, listener);
      }
    }
  }

  function isMatchingRootContainer(grandContainer, targetContainer) {
    return grandContainer === targetContainer || grandContainer.nodeType === COMMENT_NODE && grandContainer.parentNode === targetContainer;
  }

  function dispatchEventForPluginEventSystem(domEventName, eventSystemFlags, nativeEvent, targetInst, targetContainer) {
    var ancestorInst = targetInst;

    if ((eventSystemFlags & IS_EVENT_HANDLE_NON_MANAGED_NODE) === 0 && (eventSystemFlags & IS_NON_DELEGATED) === 0) {
      var targetContainerNode = targetContainer; // If we are using the legacy FB support flag, we

      if (targetInst !== null) {
        // The below logic attempts to work out if we need to change
        // the target fiber to a different ancestor. We had similar logic
        // in the legacy event system, except the big difference between
        // systems is that the modern event system now has an event listener
        // attached to each React Root and React Portal Root. Together,
        // the DOM nodes representing these roots are the "rootContainer".
        // To figure out which ancestor instance we should use, we traverse
        // up the fiber tree from the target instance and attempt to find
        // root boundaries that match that of our current "rootContainer".
        // If we find that "rootContainer", we find the parent fiber
        // sub-tree for that root and make that our ancestor instance.
        var node = targetInst;

        mainLoop: while (true) {
          if (node === null) {
            return;
          }

          var nodeTag = node.tag;

          if (nodeTag === HostRoot || nodeTag === HostPortal) {
            var container = node.stateNode.containerInfo;

            if (isMatchingRootContainer(container, targetContainerNode)) {
              break;
            }

            if (nodeTag === HostPortal) {
              // The target is a portal, but it's not the rootContainer we're looking for.
              // Normally portals handle their own events all the way down to the root.
              // So we should be able to stop now. However, we don't know if this portal
              // was part of *our* root.
              var grandNode = node.return;

              while (grandNode !== null) {
                var grandTag = grandNode.tag;

                if (grandTag === HostRoot || grandTag === HostPortal) {
                  var grandContainer = grandNode.stateNode.containerInfo;

                  if (isMatchingRootContainer(grandContainer, targetContainerNode)) {
                    // This is the rootContainer we're looking for and we found it as
                    // a parent of the Portal. That means we can ignore it because the
                    // Portal will bubble through to us.
                    return;
                  }
                }

                grandNode = grandNode.return;
              }
            } // Now we need to find it's corresponding host fiber in the other
            // tree. To do this we can use getClosestInstanceFromNode, but we
            // need to validate that the fiber is a host instance, otherwise
            // we need to traverse up through the DOM till we find the correct
            // node that is from the other tree.


            while (container !== null) {
              var parentNode = getClosestInstanceFromNode(container);

              if (parentNode === null) {
                return;
              }

              var parentTag = parentNode.tag;

              if (parentTag === HostComponent || parentTag === HostText) {
                node = ancestorInst = parentNode;
                continue mainLoop;
              }

              container = container.parentNode;
            }
          }

          node = node.return;
        }
      }
    }

    batchedUpdates(function () {
      return dispatchEventsForPlugins(domEventName, eventSystemFlags, nativeEvent, ancestorInst);
    });
  }

  function createDispatchListener(instance, listener, currentTarget) {
    return {
      instance: instance,
      listener: listener,
      currentTarget: currentTarget
    };
  }

  function accumulateSinglePhaseListeners(targetFiber, reactName, nativeEventType, inCapturePhase, accumulateTargetOnly, nativeEvent) {
    var captureName = reactName !== null ? reactName + 'Capture' : null;
    var reactEventName = inCapturePhase ? captureName : reactName;
    var listeners = [];
    var instance = targetFiber;
    var lastHostComponent = null; // Accumulate all instances and listeners via the target -> root path.

    while (instance !== null) {
      var _instance2 = instance,
          stateNode = _instance2.stateNode,
          tag = _instance2.tag; // Handle listeners that are on HostComponents (i.e. <div>)

      if (tag === HostComponent && stateNode !== null) {
        lastHostComponent = stateNode; // createEventHandle listeners


        if (reactEventName !== null) {
          var listener = getListener(instance, reactEventName);

          if (listener != null) {
            listeners.push(createDispatchListener(instance, listener, lastHostComponent));
          }
        }
      } // If we are only accumulating events for the target, then we don't
      // continue to propagate through the React fiber tree to find other
      // listeners.


      if (accumulateTargetOnly) {
        break;
      } // If we are processing the onBeforeBlur event, then we need to take

      instance = instance.return;
    }

    return listeners;
  } // We should only use this function for:
  // - BeforeInputEventPlugin
  // - ChangeEventPlugin
  // - SelectEventPlugin
  // This is because we only process these plugins
  // in the bubble phase, so we need to accumulate two
  // phase event listeners (via emulation).

  function accumulateTwoPhaseListeners(targetFiber, reactName) {
    var captureName = reactName + 'Capture';
    var listeners = [];
    var instance = targetFiber; // Accumulate all instances and listeners via the target -> root path.

    while (instance !== null) {
      var _instance3 = instance,
          stateNode = _instance3.stateNode,
          tag = _instance3.tag; // Handle listeners that are on HostComponents (i.e. <div>)

      if (tag === HostComponent && stateNode !== null) {
        var currentTarget = stateNode;
        var captureListener = getListener(instance, captureName);

        if (captureListener != null) {
          listeners.unshift(createDispatchListener(instance, captureListener, currentTarget));
        }

        var bubbleListener = getListener(instance, reactName);

        if (bubbleListener != null) {
          listeners.push(createDispatchListener(instance, bubbleListener, currentTarget));
        }
      }

      instance = instance.return;
    }

    return listeners;
  }

  function getParent(inst) {
    if (inst === null) {
      return null;
    }

    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 nodeA = instA;
    var nodeB = instB;
    var depthA = 0;

    for (var tempA = nodeA; tempA; tempA = getParent(tempA)) {
      depthA++;
    }

    var depthB = 0;

    for (var tempB = nodeB; tempB; tempB = getParent(tempB)) {
      depthB++;
    } // If A is deeper, crawl up.


    while (depthA - depthB > 0) {
      nodeA = getParent(nodeA);
      depthA--;
    } // If B is deeper, crawl up.


    while (depthB - depthA > 0) {
      nodeB = getParent(nodeB);
      depthB--;
    } // Walk in lockstep until we find a match.


    var depth = depthA;

    while (depth--) {
      if (nodeA === nodeB || nodeB !== null && nodeA === nodeB.alternate) {
        return nodeA;
      }

      nodeA = getParent(nodeA);
      nodeB = getParent(nodeB);
    }

    return null;
  }

  function accumulateEnterLeaveListenersForEvent(dispatchQueue, event, target, common, inCapturePhase) {
    var registrationName = event._reactName;
    var listeners = [];
    var instance = target;

    while (instance !== null) {
      if (instance === common) {
        break;
      }

      var _instance4 = instance,
          alternate = _instance4.alternate,
          stateNode = _instance4.stateNode,
          tag = _instance4.tag;

      if (alternate !== null && alternate === common) {
        break;
      }

      if (tag === HostComponent && stateNode !== null) {
        var currentTarget = stateNode;

        if (inCapturePhase) {
          var captureListener = getListener(instance, registrationName);

          if (captureListener != null) {
            listeners.unshift(createDispatchListener(instance, captureListener, currentTarget));
          }
        } else if (!inCapturePhase) {
          var bubbleListener = getListener(instance, registrationName);

          if (bubbleListener != null) {
            listeners.push(createDispatchListener(instance, bubbleListener, currentTarget));
          }
        }
      }

      instance = instance.return;
    }

    if (listeners.length !== 0) {
      dispatchQueue.push({
        event: event,
        listeners: listeners
      });
    }
  } // We should only use this function for:
  // - EnterLeaveEventPlugin
  // This is because we only process this plugin
  // in the bubble phase, so we need to accumulate two
  // phase event listeners.


  function accumulateEnterLeaveTwoPhaseListeners(dispatchQueue, leaveEvent, enterEvent, from, to) {
    var common = from && to ? getLowestCommonAncestor(from, to) : null;

    if (from !== null) {
      accumulateEnterLeaveListenersForEvent(dispatchQueue, leaveEvent, from, common, false);
    }

    if (to !== null && enterEvent !== null) {
      accumulateEnterLeaveListenersForEvent(dispatchQueue, enterEvent, to, common, true);
    }
  }
  function getListenerSetKey(domEventName, capture) {
    return domEventName + "__" + (capture ? 'capture' : 'bubble');
  }

  var didWarnInvalidHydration = false;
  var DANGEROUSLY_SET_INNER_HTML = 'dangerouslySetInnerHTML';
  var SUPPRESS_CONTENT_EDITABLE_WARNING = 'suppressContentEditableWarning';
  var SUPPRESS_HYDRATION_WARNING = 'suppressHydrationWarning';
  var AUTOFOCUS = 'autoFocus';
  var CHILDREN = 'children';
  var STYLE = 'style';
  var HTML$1 = '__html';
  var warnedUnknownTags;
  var validatePropertiesInDevelopment;
  var warnForPropDifference;
  var warnForExtraAttributes;
  var warnForInvalidEventListener;
  var canDiffStyleForHydrationWarning;
  var normalizeHTML;

  {
    warnedUnknownTags = {
      // 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, {
        registrationNameDependencies: registrationNameDependencies,
        possibleRegistrationNames: possibleRegistrationNames
      });
    }; // 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;

    warnForPropDifference = function (propName, serverValue, clientValue) {
      if (didWarnInvalidHydration) {
        return;
      }

      var normalizedClientValue = normalizeMarkupForTextOrAttribute(clientValue);
      var normalizedServerValue = normalizeMarkupForTextOrAttribute(serverValue);

      if (normalizedServerValue === normalizedClientValue) {
        return;
      }

      didWarnInvalidHydration = true;

      error('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);
      });

      error('Extra attributes from the server: %s', names);
    };

    warnForInvalidEventListener = function (registrationName, listener) {
      if (listener === false) {
        error('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 {
        error('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;
    };
  } // 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;

  function normalizeMarkupForTextOrAttribute(markup) {
    {
      checkHtmlStringCoercion(markup);
    }

    var markupString = typeof markup === 'string' ? markup : '' + markup;
    return markupString.replace(NORMALIZE_NEWLINES_REGEX, '\n').replace(NORMALIZE_NULL_AND_REPLACEMENT_REGEX, '');
  }

  function checkForUnmatchedText(serverText, clientText, isConcurrentMode, shouldWarnDev) {
    var normalizedClientText = normalizeMarkupForTextOrAttribute(clientText);
    var normalizedServerText = normalizeMarkupForTextOrAttribute(serverText);

    if (normalizedServerText === normalizedClientText) {
      return;
    }

    if (shouldWarnDev) {
      {
        if (!didWarnInvalidHydration) {
          didWarnInvalidHydration = true;

          error('Text content did not match. Server: "%s" Client: "%s"', normalizedServerText, normalizedClientText);
        }
      }
    }

    if (isConcurrentMode && enableClientRenderFallbackOnTextMismatch) {
      // In concurrent roots, we throw when there's a text mismatch and revert to
      // client rendering, up to the nearest Suspense boundary.
      throw new Error('Text content does not match server-rendered HTML.');
    }
  }

  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.
    // https://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) {
        {
          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$1] : 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 (propKey === SUPPRESS_CONTENT_EDITABLE_WARNING || propKey === SUPPRESS_HYDRATION_WARNING) ; else if (propKey === AUTOFOCUS) ; else if (registrationNameDependencies.hasOwnProperty(propKey)) {
        if (nextProp != null) {
          if ( typeof nextProp !== 'function') {
            warnForInvalidEventListener(propKey, nextProp);
          }

          if (propKey === 'onScroll') {
            listenToNonDelegatedEvent('scroll', domElement);
          }
        }
      } 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) {
        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; // We create tags in the namespace of their parent container, except HTML
    // tags get no namespace.

    var ownerDocument = getOwnerDocumentFromRootContainer(rootContainerElement);
    var domElement;
    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>.

        if (!isCustomComponentTag && type !== type.toLowerCase()) {
          error('<%s /> is using incorrect casing. ' + 'Use PascalCase for React components, ' + 'or lowercase for HTML elements.', type);
        }
      }

      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]' && !hasOwnProperty.call(warnedUnknownTags, type)) {
          warnedUnknownTags[type] = true;

          error('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);
    } // TODO: Make sure that we check isMounted before firing any of these events.


    var props;

    switch (tag) {
      case 'dialog':
        listenToNonDelegatedEvent('cancel', domElement);
        listenToNonDelegatedEvent('close', domElement);
        props = rawProps;
        break;

      case 'iframe':
      case 'object':
      case 'embed':
        // We listen to this event in case to ensure emulated bubble
        // listeners still fire for the load event.
        listenToNonDelegatedEvent('load', domElement);
        props = rawProps;
        break;

      case 'video':
      case 'audio':
        // We listen to these events in case to ensure emulated bubble
        // listeners still fire for all the media events.
        for (var i = 0; i < mediaEventTypes.length; i++) {
          listenToNonDelegatedEvent(mediaEventTypes[i], domElement);
        }

        props = rawProps;
        break;

      case 'source':
        // We listen to this event in case to ensure emulated bubble
        // listeners still fire for the error event.
        listenToNonDelegatedEvent('error', domElement);
        props = rawProps;
        break;

      case 'img':
      case 'image':
      case 'link':
        // We listen to these events in case to ensure emulated bubble
        // listeners still fire for error and load events.
        listenToNonDelegatedEvent('error', domElement);
        listenToNonDelegatedEvent('load', domElement);
        props = rawProps;
        break;

      case 'details':
        // We listen to this event in case to ensure emulated bubble
        // listeners still fire for the toggle event.
        listenToNonDelegatedEvent('toggle', domElement);
        props = rawProps;
        break;

      case 'input':
        initWrapperState(domElement, rawProps);
        props = getHostProps(domElement, rawProps); // We listen to this event in case to ensure emulated bubble
        // listeners still fire for the invalid event.

        listenToNonDelegatedEvent('invalid', domElement);
        break;

      case 'option':
        validateProps(domElement, rawProps);
        props = rawProps;
        break;

      case 'select':
        initWrapperState$1(domElement, rawProps);
        props = getHostProps$1(domElement, rawProps); // We listen to this event in case to ensure emulated bubble
        // listeners still fire for the invalid event.

        listenToNonDelegatedEvent('invalid', domElement);
        break;

      case 'textarea':
        initWrapperState$2(domElement, rawProps);
        props = getHostProps$2(domElement, rawProps); // We listen to this event in case to ensure emulated bubble
        // listeners still fire for the invalid event.

        listenToNonDelegatedEvent('invalid', domElement);
        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);
        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;
    var nextProps;

    switch (tag) {
      case 'input':
        lastProps = getHostProps(domElement, lastRawProps);
        nextProps = getHostProps(domElement, nextRawProps);
        updatePayload = [];
        break;

      case 'select':
        lastProps = getHostProps$1(domElement, lastRawProps);
        nextProps = getHostProps$1(domElement, nextRawProps);
        updatePayload = [];
        break;

      case 'textarea':
        lastProps = getHostProps$2(domElement, lastRawProps);
        nextProps = getHostProps$2(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;
    var styleName;
    var styleUpdates = null;

    for (propKey in lastProps) {
      if (nextProps.hasOwnProperty(propKey) || !lastProps.hasOwnProperty(propKey) || lastProps[propKey] == null) {
        continue;
      }

      if (propKey === STYLE) {
        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) ; else if (propKey === SUPPRESS_CONTENT_EDITABLE_WARNING || propKey === SUPPRESS_HYDRATION_WARNING) ; else if (propKey === AUTOFOCUS) ; else if (registrationNameDependencies.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 allowed property list 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) {
        {
          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$1] : undefined;
        var lastHtml = lastProp ? lastProp[HTML$1] : undefined;

        if (nextHtml != null) {
          if (lastHtml !== nextHtml) {
            (updatePayload = updatePayload || []).push(propKey, nextHtml);
          }
        }
      } else if (propKey === CHILDREN) {
        if (typeof nextProp === 'string' || typeof nextProp === 'number') {
          (updatePayload = updatePayload || []).push(propKey, '' + nextProp);
        }
      } else if (propKey === SUPPRESS_CONTENT_EDITABLE_WARNING || propKey === SUPPRESS_HYDRATION_WARNING) ; else if (registrationNameDependencies.hasOwnProperty(propKey)) {
        if (nextProp != null) {
          // We eagerly listen to this even though we haven't committed yet.
          if ( typeof nextProp !== 'function') {
            warnForInvalidEventListener(propKey, nextProp);
          }

          if (propKey === 'onScroll') {
            listenToNonDelegatedEvent('scroll', domElement);
          }
        }

        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 allowed property list during the commit.
        (updatePayload = updatePayload || []).push(propKey, nextProp);
      }
    }

    if (styleUpdates) {
      {
        validateShorthandPropertyCollisionInDev(styleUpdates, nextProps[STYLE]);
      }

      (updatePayload = updatePayload || []).push(STYLE, 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;
    }
  }

  function diffHydratedProperties(domElement, tag, rawProps, parentNamespace, rootContainerElement, isConcurrentMode, shouldWarnDev) {
    var isCustomComponentTag;
    var extraAttributeNames;

    {
      isCustomComponentTag = isCustomComponent(tag, rawProps);
      validatePropertiesInDevelopment(tag, rawProps);
    } // TODO: Make sure that we check isMounted before firing any of these events.


    switch (tag) {
      case 'dialog':
        listenToNonDelegatedEvent('cancel', domElement);
        listenToNonDelegatedEvent('close', domElement);
        break;

      case 'iframe':
      case 'object':
      case 'embed':
        // We listen to this event in case to ensure emulated bubble
        // listeners still fire for the load event.
        listenToNonDelegatedEvent('load', domElement);
        break;

      case 'video':
      case 'audio':
        // We listen to these events in case to ensure emulated bubble
        // listeners still fire for all the media events.
        for (var i = 0; i < mediaEventTypes.length; i++) {
          listenToNonDelegatedEvent(mediaEventTypes[i], domElement);
        }

        break;

      case 'source':
        // We listen to this event in case to ensure emulated bubble
        // listeners still fire for the error event.
        listenToNonDelegatedEvent('error', domElement);
        break;

      case 'img':
      case 'image':
      case 'link':
        // We listen to these events in case to ensure emulated bubble
        // listeners still fire for error and load events.
        listenToNonDelegatedEvent('error', domElement);
        listenToNonDelegatedEvent('load', domElement);
        break;

      case 'details':
        // We listen to this event in case to ensure emulated bubble
        // listeners still fire for the toggle event.
        listenToNonDelegatedEvent('toggle', domElement);
        break;

      case 'input':
        initWrapperState(domElement, rawProps); // We listen to this event in case to ensure emulated bubble
        // listeners still fire for the invalid event.

        listenToNonDelegatedEvent('invalid', domElement);
        break;

      case 'option':
        validateProps(domElement, rawProps);
        break;

      case 'select':
        initWrapperState$1(domElement, rawProps); // We listen to this event in case to ensure emulated bubble
        // listeners still fire for the invalid event.

        listenToNonDelegatedEvent('invalid', domElement);
        break;

      case 'textarea':
        initWrapperState$2(domElement, rawProps); // We listen to this event in case to ensure emulated bubble
        // listeners still fire for the invalid event.

        listenToNonDelegatedEvent('invalid', domElement);
        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) {
          // 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 (rawProps[SUPPRESS_HYDRATION_WARNING] !== true) {
              checkForUnmatchedText(domElement.textContent, nextProp, isConcurrentMode, shouldWarnDev);
            }

            updatePayload = [CHILDREN, nextProp];
          }
        } else if (typeof nextProp === 'number') {
          if (domElement.textContent !== '' + nextProp) {
            if (rawProps[SUPPRESS_HYDRATION_WARNING] !== true) {
              checkForUnmatchedText(domElement.textContent, nextProp, isConcurrentMode, shouldWarnDev);
            }

            updatePayload = [CHILDREN, '' + nextProp];
          }
        }
      } else if (registrationNameDependencies.hasOwnProperty(propKey)) {
        if (nextProp != null) {
          if ( typeof nextProp !== 'function') {
            warnForInvalidEventListener(propKey, nextProp);
          }

          if (propKey === 'onScroll') {
            listenToNonDelegatedEvent('scroll', domElement);
          }
        }
      } else if (shouldWarnDev && 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 = isCustomComponentTag && enableCustomElementPropertySupport ? null : getPropertyInfo(propKey);

        if (rawProps[SUPPRESS_HYDRATION_WARNING] === true) ; else if (propKey === SUPPRESS_CONTENT_EDITABLE_WARNING || propKey === SUPPRESS_HYDRATION_WARNING || // Controlled attributes are not validated
        // TODO: Only ignore them on controlled tags.
        propKey === 'value' || propKey === 'checked' || propKey === 'selected') ; else if (propKey === DANGEROUSLY_SET_INNER_HTML) {
          var serverHTML = domElement.innerHTML;
          var nextHtml = nextProp ? nextProp[HTML$1] : undefined;

          if (nextHtml != null) {
            var expectedHTML = normalizeHTML(domElement, nextHtml);

            if (expectedHTML !== serverHTML) {
              warnForPropDifference(propKey, serverHTML, expectedHTML);
            }
          }
        } else if (propKey === STYLE) {
          // $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 && !enableCustomElementPropertySupport) {
          // $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);
          }

          var dontWarnCustomElement = enableCustomElementPropertySupport  ;

          if (!dontWarnCustomElement && nextProp !== serverValue && !isMismatchDueToBadCasing) {
            warnForPropDifference(propKey, serverValue, nextProp);
          }
        }
      }
    }

    {
      if (shouldWarnDev) {
        if ( // $FlowFixMe - Should be inferred as not undefined.
        extraAttributeNames.size > 0 && rawProps[SUPPRESS_HYDRATION_WARNING] !== true) {
          // $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);
        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, isConcurrentMode) {
    var isDifferent = textNode.nodeValue !== text;
    return isDifferent;
  }
  function warnForDeletedHydratableElement(parentNode, child) {
    {
      if (didWarnInvalidHydration) {
        return;
      }

      didWarnInvalidHydration = true;

      error('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;

      error('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;

      error('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;

      error('Expected server HTML to contain a matching text node for "%s" in <%s>.', text, parentNode.nodeName.toLowerCase());
    }
  }
  function restoreControlledState$3(domElement, tag, props) {
    switch (tag) {
      case 'input':
        restoreControlledState(domElement, props);
        return;

      case 'textarea':
        restoreControlledState$2(domElement, props);
        return;

      case 'select':
        restoreControlledState$1(domElement, props);
        return;
    }
  }

  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) {
        if (childTag != null) {
          error('validateDOMNesting: when childText is passed, childTag should be null');
        }

        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 warnKey = !!invalidParent + '|' + childTag + '|' + ancestorTag;

      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>, <thead> or <tfoot> to your code to match the DOM tree generated by ' + 'the browser.';
        }

        error('validateDOMNesting(...): %s cannot appear as a child of <%s>.%s%s', tagDisplayName, ancestorTag, whitespaceInfo, info);
      } else {
        error('validateDOMNesting(...): %s cannot appear as a descendant of ' + '<%s>.', tagDisplayName, ancestorTag);
      }
    };
  }

  var SUPPRESS_HYDRATION_WARNING$1 = 'suppressHydrationWarning';
  var SUSPENSE_START_DATA = '$';
  var SUSPENSE_END_DATA = '/$';
  var SUSPENSE_PENDING_START_DATA = '$?';
  var SUSPENSE_FALLBACK_START_DATA = '$!';
  var STYLE$1 = 'style';
  var eventsEnabled = null;
  var selectionInformation = null;
  function getRootHostContext(rootContainerInstance) {
    var type;
    var namespace;
    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
      };
    }
  }
  function getChildHostContext(parentHostContext, type, rootContainerInstance) {
    {
      var parentHostContextDev = parentHostContext;
      var namespace = getChildNamespace(parentHostContextDev.namespace, type);
      var ancestorInfo = updatedAncestorInfo(parentHostContextDev.ancestorInfo, type);
      return {
        namespace: namespace,
        ancestorInfo: ancestorInfo
      };
    }
  }
  function getPublicInstance(instance) {
    return instance;
  }
  function prepareForCommit(containerInfo) {
    eventsEnabled = isEnabled();
    selectionInformation = getSelectionInformation();
    var activeInstance = null;

    setEnabled(false);
    return activeInstance;
  }
  function resetAfterCommit(containerInfo) {
    restoreSelection(selectionInformation);
    setEnabled(eventsEnabled);
    eventsEnabled = null;
    selectionInformation = null;
  }
  function createInstance(type, props, rootContainerInstance, hostContext, internalInstanceHandle) {
    var parentNamespace;

    {
      // 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);

    switch (type) {
      case 'button':
      case 'input':
      case 'select':
      case 'textarea':
        return !!props.autoFocus;

      case 'img':
        return true;

      default:
        return false;
    }
  }
  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);
  }
  function shouldSetTextContent(type, props) {
    return type === 'textarea' || type === 'noscript' || typeof props.children === 'string' || typeof props.children === 'number' || typeof props.dangerouslySetInnerHTML === 'object' && props.dangerouslySetInnerHTML !== null && props.dangerouslySetInnerHTML.__html != null;
  }
  function createTextInstance(text, rootContainerInstance, hostContext, internalInstanceHandle) {
    {
      var hostContextDev = hostContext;
      validateDOMNesting(null, text, hostContextDev.ancestorInfo);
    }

    var textNode = createTextNode(text, rootContainerInstance);
    precacheFiberNode(internalInstanceHandle, textNode);
    return textNode;
  }
  function getCurrentEventPriority() {
    var currentEvent = window.event;

    if (currentEvent === undefined) {
      return DefaultEventPriority;
    }

    return getEventPriority(currentEvent.type);
  }
  // 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;
  var localPromise = typeof Promise === 'function' ? Promise : undefined; // -------------------
  var scheduleMicrotask = typeof queueMicrotask === 'function' ? queueMicrotask : typeof localPromise !== 'undefined' ? function (callback) {
    return localPromise.resolve(null).then(callback).catch(handleErrorInNextTick);
  } : scheduleTimeout; // TODO: Determine the best fallback here.

  function handleErrorInNextTick(error) {
    setTimeout(function () {
      throw error;
    });
  } // -------------------
  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.
    switch (type) {
      case 'button':
      case 'input':
      case 'select':
      case 'textarea':
        if (newProps.autoFocus) {
          domElement.focus();
        }

        return;

      case 'img':
        {
          if (newProps.src) {
            domElement.src = newProps.src;
          }

          return;
        }
    }
  }
  function commitUpdate(domElement, updatePayload, type, oldProps, newProps, internalInstanceHandle) {
    // Apply the diff to the DOM node.
    updateProperties(domElement, updatePayload, type, oldProps, newProps); // Update the props handle so that we know which props are the ones with
    // with current event handlers.

    updateFiberProps(domElement, 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;

    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); // Retry if any event replaying was blocked on this.

            retryIfBlockedOn(suspenseInstance);
            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.
    // Retry if any event replaying was blocked on this.


    retryIfBlockedOn(suspenseInstance);
  }
  function clearSuspenseBoundaryFromContainer(container, suspenseInstance) {
    if (container.nodeType === COMMENT_NODE) {
      clearSuspenseBoundary(container.parentNode, suspenseInstance);
    } else if (container.nodeType === ELEMENT_NODE) {
      clearSuspenseBoundary(container, suspenseInstance);
    } // Retry if any event replaying was blocked on this.


    retryIfBlockedOn(container);
  }
  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$1];
    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;
  }
  function clearContainer(container) {
    if (container.nodeType === ELEMENT_NODE) {
      container.textContent = '';
    } else if (container.nodeType === DOCUMENT_NODE) {
      if (container.documentElement) {
        container.removeChild(container.documentElement);
      }
    }
  } // -------------------
  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 getSuspenseInstanceFallbackErrorDetails(instance) {
    var dataset = instance.nextSibling && instance.nextSibling.dataset;
    var digest, message, stack;

    if (dataset) {
      digest = dataset.dgst;

      {
        message = dataset.msg;
        stack = dataset.stck;
      }
    }

    {
      return {
        message: message,
        digest: digest,
        stack: stack
      };
    } // let value = {message: undefined, hash: undefined};
    // const nextSibling = instance.nextSibling;
    // if (nextSibling) {
    //   const dataset = ((nextSibling: any): HTMLTemplateElement).dataset;
    //   value.message = dataset.msg;
    //   value.hash = dataset.hash;
    //   if (true) {
    //     value.stack = dataset.stack;
    //   }
    // }
    // return value;

  }
  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 (nodeType === COMMENT_NODE) {
        var nodeData = node.data;

        if (nodeData === SUSPENSE_START_DATA || nodeData === SUSPENSE_FALLBACK_START_DATA || nodeData === SUSPENSE_PENDING_START_DATA) {
          break;
        }

        if (nodeData === SUSPENSE_END_DATA) {
          return null;
        }
      }
    }

    return node;
  }

  function getNextHydratableSibling(instance) {
    return getNextHydratable(instance.nextSibling);
  }
  function getFirstHydratableChild(parentInstance) {
    return getNextHydratable(parentInstance.firstChild);
  }
  function getFirstHydratableChildWithinContainer(parentContainer) {
    return getNextHydratable(parentContainer.firstChild);
  }
  function getFirstHydratableChildWithinSuspenseInstance(parentInstance) {
    return getNextHydratable(parentInstance.nextSibling);
  }
  function hydrateInstance(instance, type, props, rootContainerInstance, hostContext, internalInstanceHandle, shouldWarnDev) {
    precacheFiberNode(internalInstanceHandle, instance); // TODO: Possibly defer this until the commit phase where all the events
    // get attached.

    updateFiberProps(instance, props);
    var parentNamespace;

    {
      var hostContextDev = hostContext;
      parentNamespace = hostContextDev.namespace;
    } // TODO: Temporary hack to check if we're in a concurrent root. We can delete
    // when the legacy root API is removed.


    var isConcurrentMode = (internalInstanceHandle.mode & ConcurrentMode) !== NoMode;
    return diffHydratedProperties(instance, type, props, parentNamespace, rootContainerInstance, isConcurrentMode, shouldWarnDev);
  }
  function hydrateTextInstance(textInstance, text, internalInstanceHandle, shouldWarnDev) {
    precacheFiberNode(internalInstanceHandle, textInstance); // TODO: Temporary hack to check if we're in a concurrent root. We can delete
    // when the legacy root API is removed.

    var isConcurrentMode = (internalInstanceHandle.mode & ConcurrentMode) !== NoMode;
    return diffHydratedText(textInstance, text);
  }
  function hydrateSuspenseInstance(suspenseInstance, internalInstanceHandle) {
    precacheFiberNode(internalInstanceHandle, suspenseInstance);
  }
  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 || data === SUSPENSE_FALLBACK_START_DATA || data === SUSPENSE_PENDING_START_DATA) {
          depth++;
        }
      }

      node = node.nextSibling;
    } // TODO: Warn, we didn't find the end comment boundary.


    return null;
  } // Returns the SuspenseInstance if this node is a direct child of a
  // SuspenseInstance. I.e. if its previous sibling is a Comment with
  // SUSPENSE_x_START_DATA. Otherwise, null.

  function getParentSuspenseInstance(targetInstance) {
    var node = targetInstance.previousSibling; // 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_START_DATA || data === SUSPENSE_FALLBACK_START_DATA || data === SUSPENSE_PENDING_START_DATA) {
          if (depth === 0) {
            return node;
          } else {
            depth--;
          }
        } else if (data === SUSPENSE_END_DATA) {
          depth++;
        }
      }

      node = node.previousSibling;
    }

    return null;
  }
  function commitHydratedContainer(container) {
    // Retry if any event replaying was blocked on this.
    retryIfBlockedOn(container);
  }
  function commitHydratedSuspenseInstance(suspenseInstance) {
    // Retry if any event replaying was blocked on this.
    retryIfBlockedOn(suspenseInstance);
  }
  function shouldDeleteUnhydratedTailInstances(parentType) {
    return parentType !== 'head' && parentType !== 'body';
  }
  function didNotMatchHydratedContainerTextInstance(parentContainer, textInstance, text, isConcurrentMode) {
    var shouldWarnDev = true;
    checkForUnmatchedText(textInstance.nodeValue, text, isConcurrentMode, shouldWarnDev);
  }
  function didNotMatchHydratedTextInstance(parentType, parentProps, parentInstance, textInstance, text, isConcurrentMode) {
    if (parentProps[SUPPRESS_HYDRATION_WARNING$1] !== true) {
      var shouldWarnDev = true;
      checkForUnmatchedText(textInstance.nodeValue, text, isConcurrentMode, shouldWarnDev);
    }
  }
  function didNotHydrateInstanceWithinContainer(parentContainer, instance) {
    {
      if (instance.nodeType === ELEMENT_NODE) {
        warnForDeletedHydratableElement(parentContainer, instance);
      } else if (instance.nodeType === COMMENT_NODE) ; else {
        warnForDeletedHydratableText(parentContainer, instance);
      }
    }
  }
  function didNotHydrateInstanceWithinSuspenseInstance(parentInstance, instance) {
    {
      // $FlowFixMe: Only Element or Document can be parent nodes.
      var parentNode = parentInstance.parentNode;

      if (parentNode !== null) {
        if (instance.nodeType === ELEMENT_NODE) {
          warnForDeletedHydratableElement(parentNode, instance);
        } else if (instance.nodeType === COMMENT_NODE) ; else {
          warnForDeletedHydratableText(parentNode, instance);
        }
      }
    }
  }
  function didNotHydrateInstance(parentType, parentProps, parentInstance, instance, isConcurrentMode) {
    {
      if (isConcurrentMode || parentProps[SUPPRESS_HYDRATION_WARNING$1] !== true) {
        if (instance.nodeType === ELEMENT_NODE) {
          warnForDeletedHydratableElement(parentInstance, instance);
        } else if (instance.nodeType === COMMENT_NODE) ; else {
          warnForDeletedHydratableText(parentInstance, instance);
        }
      }
    }
  }
  function didNotFindHydratableInstanceWithinContainer(parentContainer, type, props) {
    {
      warnForInsertedHydratedElement(parentContainer, type);
    }
  }
  function didNotFindHydratableTextInstanceWithinContainer(parentContainer, text) {
    {
      warnForInsertedHydratedText(parentContainer, text);
    }
  }
  function didNotFindHydratableInstanceWithinSuspenseInstance(parentInstance, type, props) {
    {
      // $FlowFixMe: Only Element or Document can be parent nodes.
      var parentNode = parentInstance.parentNode;
      if (parentNode !== null) warnForInsertedHydratedElement(parentNode, type);
    }
  }
  function didNotFindHydratableTextInstanceWithinSuspenseInstance(parentInstance, text) {
    {
      // $FlowFixMe: Only Element or Document can be parent nodes.
      var parentNode = parentInstance.parentNode;
      if (parentNode !== null) warnForInsertedHydratedText(parentNode, text);
    }
  }
  function didNotFindHydratableInstance(parentType, parentProps, parentInstance, type, props, isConcurrentMode) {
    {
      if (isConcurrentMode || parentProps[SUPPRESS_HYDRATION_WARNING$1] !== true) {
        warnForInsertedHydratedElement(parentInstance, type);
      }
    }
  }
  function didNotFindHydratableTextInstance(parentType, parentProps, parentInstance, text, isConcurrentMode) {
    {
      if (isConcurrentMode || parentProps[SUPPRESS_HYDRATION_WARNING$1] !== true) {
        warnForInsertedHydratedText(parentInstance, text);
      }
    }
  }
  function errorHydratingContainer(parentContainer) {
    {
      // TODO: This gets logged by onRecoverableError, too, so we should be
      // able to remove it.
      error('An error occurred during hydration. The server HTML was replaced with client content in <%s>.', parentContainer.nodeName.toLowerCase());
    }
  }
  function preparePortalMount(portalInstance) {
    listenToAllSupportedEvents(portalInstance);
  }

  var randomKey = Math.random().toString(36).slice(2);
  var internalInstanceKey = '__reactFiber$' + randomKey;
  var internalPropsKey = '__reactProps$' + randomKey;
  var internalContainerInstanceKey = '__reactContainer$' + randomKey;
  var internalEventHandlersKey = '__reactEvents$' + randomKey;
  var internalEventHandlerListenersKey = '__reactListeners$' + randomKey;
  var internalEventHandlesSetKey = '__reactHandles$' + randomKey;
  function detachDeletedInstance(node) {
    // TODO: This function is only called on host components. I don't think all of
    // these fields are relevant.
    delete node[internalInstanceKey];
    delete node[internalPropsKey];
    delete node[internalEventHandlersKey];
    delete node[internalEventHandlerListenersKey];
    delete node[internalEventHandlesSetKey];
  }
  function precacheFiberNode(hostInst, node) {
    node[internalInstanceKey] = hostInst;
  }
  function markContainerAsRoot(hostRoot, node) {
    node[internalContainerInstanceKey] = hostRoot;
  }
  function unmarkContainerAsRoot(node) {
    node[internalContainerInstanceKey] = null;
  }
  function isContainerMarkedAsRoot(node) {
    return !!node[internalContainerInstanceKey];
  } // Given a DOM node, return the closest HostComponent or HostText fiber ancestor.
  // If the target node is part of a hydrated or not yet rendered subtree, then
  // this may also return a SuspenseComponent or HostRoot to indicate that.
  // Conceptually the HostRoot fiber is a child of the Container node. So if you
  // pass the Container node as the targetNode, you will not actually get the
  // HostRoot back. To get to the HostRoot, you need to pass a child of it.
  // The same thing applies to Suspense boundaries.

  function getClosestInstanceFromNode(targetNode) {
    var targetInst = targetNode[internalInstanceKey];

    if (targetInst) {
      // Don't return HostRoot or SuspenseComponent here.
      return targetInst;
    } // If the direct event target isn't a React owned DOM node, we need to look
    // to see if one of its parents is a React owned DOM node.


    var parentNode = targetNode.parentNode;

    while (parentNode) {
      // We'll check if this is a container root that could include
      // React nodes in the future. We need to check this first because
      // if we're a child of a dehydrated container, we need to first
      // find that inner container before moving on to finding the parent
      // instance. Note that we don't check this field on  the targetNode
      // itself because the fibers are conceptually between the container
      // node and the first child. It isn't surrounding the container node.
      // If it's not a container, we check if it's an instance.
      targetInst = parentNode[internalContainerInstanceKey] || parentNode[internalInstanceKey];

      if (targetInst) {
        // Since this wasn't the direct target of the event, we might have
        // stepped past dehydrated DOM nodes to get here. However they could
        // also have been non-React nodes. We need to answer which one.
        // If we the instance doesn't have any children, then there can't be
        // a nested suspense boundary within it. So we can use this as a fast
        // bailout. Most of the time, when people add non-React children to
        // the tree, it is using a ref to a child-less DOM node.
        // Normally we'd only need to check one of the fibers because if it
        // has ever gone from having children to deleting them or vice versa
        // it would have deleted the dehydrated boundary nested inside already.
        // However, since the HostRoot starts out with an alternate it might
        // have one on the alternate so we need to check in case this was a
        // root.
        var alternate = targetInst.alternate;

        if (targetInst.child !== null || alternate !== null && alternate.child !== null) {
          // Next we need to figure out if the node that skipped past is
          // nested within a dehydrated boundary and if so, which one.
          var suspenseInstance = getParentSuspenseInstance(targetNode);

          while (suspenseInstance !== null) {
            // We found a suspense instance. That means that we haven't
            // hydrated it yet. Even though we leave the comments in the
            // DOM after hydrating, and there are boundaries in the DOM
            // that could already be hydrated, we wouldn't have found them
            // through this pass since if the target is hydrated it would
            // have had an internalInstanceKey on it.
            // Let's get the fiber associated with the SuspenseComponent
            // as the deepest instance.
            var targetSuspenseInst = suspenseInstance[internalInstanceKey];

            if (targetSuspenseInst) {
              return targetSuspenseInst;
            } // If we don't find a Fiber on the comment, it might be because
            // we haven't gotten to hydrate it yet. There might still be a
            // parent boundary that hasn't above this one so we need to find
            // the outer most that is known.


            suspenseInstance = getParentSuspenseInstance(suspenseInstance); // If we don't find one, then that should mean that the parent
            // host component also hasn't hydrated yet. We can return it
            // below since it will bail out on the isMounted check later.
          }
        }

        return targetInst;
      }

      targetNode = parentNode;
      parentNode = targetNode.parentNode;
    }

    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(node) {
    var inst = node[internalInstanceKey] || node[internalContainerInstanceKey];

    if (inst) {
      if (inst.tag === HostComponent || inst.tag === HostText || inst.tag === SuspenseComponent || inst.tag === HostRoot) {
        return inst;
      } else {
        return null;
      }
    }

    return null;
  }
  /**
   * Given a ReactDOMComponent or ReactDOMTextComponent, return the corresponding
   * DOM node.
   */

  function getNodeFromInstance(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.


    throw new Error('getNodeFromInstance: Invalid argument.');
  }
  function getFiberCurrentPropsFromNode(node) {
    return node[internalPropsKey] || null;
  }
  function updateFiberProps(node, props) {
    node[internalPropsKey] = props;
  }
  function getEventListenerSet(node) {
    var elementListenerSet = node[internalEventHandlersKey];

    if (elementListenerSet === undefined) {
      elementListenerSet = node[internalEventHandlersKey] = new Set();
    }

    return elementListenerSet;
  }

  var loggedTypeFailures = {};
  var ReactDebugCurrentFrame$1 = ReactSharedInternals.ReactDebugCurrentFrame;

  function setCurrentlyValidatingElement(element) {
    {
      if (element) {
        var owner = element._owner;
        var stack = describeUnknownElementTypeFrameInDEV(element.type, element._source, owner ? owner.type : null);
        ReactDebugCurrentFrame$1.setExtraStackFrame(stack);
      } else {
        ReactDebugCurrentFrame$1.setExtraStackFrame(null);
      }
    }
  }

  function checkPropTypes(typeSpecs, values, location, componentName, element) {
    {
      // $FlowFixMe This is okay but Flow doesn't know it.
      var has = Function.call.bind(hasOwnProperty);

      for (var typeSpecName in typeSpecs) {
        if (has(typeSpecs, typeSpecName)) {
          var error$1 = void 0; // 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') {
              // eslint-disable-next-line react-internal/prod-error-codes
              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] + '`.' + 'This often happens because of typos such as `PropTypes.function` instead of `PropTypes.func`.');
              err.name = 'Invariant Violation';
              throw err;
            }

            error$1 = typeSpecs[typeSpecName](values, typeSpecName, componentName, location, null, 'SECRET_DO_NOT_PASS_THIS_OR_YOU_WILL_BE_FIRED');
          } catch (ex) {
            error$1 = ex;
          }

          if (error$1 && !(error$1 instanceof Error)) {
            setCurrentlyValidatingElement(element);

            error('%s: type specification of %s' + ' `%s` is invalid; the type checker ' + 'function must return `null` or an `Error` but returned a %s. ' + 'You may have forgotten to pass an argument to the type checker ' + 'creator (arrayOf, instanceOf, objectOf, oneOf, oneOfType, and ' + 'shape all require an argument).', componentName || 'React class', location, typeSpecName, typeof error$1);

            setCurrentlyValidatingElement(null);
          }

          if (error$1 instanceof Error && !(error$1.message in loggedTypeFailures)) {
            // Only monitor this failure once because there tends to be a lot of the
            // same error.
            loggedTypeFailures[error$1.message] = true;
            setCurrentlyValidatingElement(element);

            error('Failed %s type: %s', location, error$1.message);

            setCurrentlyValidatingElement(null);
          }
        }
      }
    }
  }

  var valueStack = [];
  var fiberStack;

  {
    fiberStack = [];
  }

  var index = -1;

  function createCursor(defaultValue) {
    return {
      current: defaultValue
    };
  }

  function pop(cursor, fiber) {
    if (index < 0) {
      {
        error('Unexpected pop.');
      }

      return;
    }

    {
      if (fiber !== fiberStack[index]) {
        error('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;

  {
    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 (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) {
    {
      var instance = workInProgress.stateNode;
      instance.__reactInternalMemoizedUnmaskedChildContext = unmaskedContext;
      instance.__reactInternalMemoizedMaskedChildContext = maskedContext;
    }
  }

  function getMaskedContext(workInProgress, unmaskedContext) {
    {
      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 = getComponentNameFromFiber(workInProgress) || 'Unknown';
        checkPropTypes(contextTypes, context, 'context', name);
      } // 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() {
    {
      return didPerformWorkStackCursor.current;
    }
  }

  function isContextProvider(type) {
    {
      var childContextTypes = type.childContextTypes;
      return childContextTypes !== null && childContextTypes !== undefined;
    }
  }

  function popContext(fiber) {
    {
      pop(didPerformWorkStackCursor, fiber);
      pop(contextStackCursor, fiber);
    }
  }

  function popTopLevelContextObject(fiber) {
    {
      pop(didPerformWorkStackCursor, fiber);
      pop(contextStackCursor, fiber);
    }
  }

  function pushTopLevelContextObject(fiber, context, didChange) {
    {
      if (contextStackCursor.current !== emptyContextObject) {
        throw new 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) {
    {
      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 = getComponentNameFromFiber(fiber) || 'Unknown';

          if (!warnedAboutMissingGetChildContext[componentName]) {
            warnedAboutMissingGetChildContext[componentName] = true;

            error('%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 = instance.getChildContext();

      for (var contextKey in childContext) {
        if (!(contextKey in childContextTypes)) {
          throw new Error((getComponentNameFromFiber(fiber) || 'Unknown') + ".getChildContext(): key \"" + contextKey + "\" is not defined in childContextTypes.");
        }
      }

      {
        var name = getComponentNameFromFiber(fiber) || 'Unknown';
        checkPropTypes(childContextTypes, childContext, 'child context', name);
      }

      return assign({}, parentContext, childContext);
    }
  }

  function pushContextProvider(workInProgress) {
    {
      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) {
    {
      var instance = workInProgress.stateNode;

      if (!instance) {
        throw new 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) {
    {
      // Currently this is only used with renderSubtreeIntoContainer; not sure if it
      // makes sense elsewhere
      if (!isFiberMounted(fiber) || fiber.tag !== ClassComponent) {
        throw new 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);

      throw new Error('Found unexpected detached subtree parent. ' + 'This error is likely caused by a bug in React. Please file an issue.');
    }
  }

  var LegacyRoot = 0;
  var ConcurrentRoot = 1;

  var syncQueue = null;
  var includesLegacySyncCallbacks = false;
  var isFlushingSyncQueue = false;
  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];
    } 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);
    }
  }
  function scheduleLegacySyncCallback(callback) {
    includesLegacySyncCallbacks = true;
    scheduleSyncCallback(callback);
  }
  function flushSyncCallbacksOnlyInLegacyMode() {
    // Only flushes the queue if there's a legacy sync callback scheduled.
    // TODO: There's only a single type of callback: performSyncOnWorkOnRoot. So
    // it might make more sense for the queue to be a list of roots instead of a
    // list of generic callbacks. Then we can have two: one for legacy roots, one
    // for concurrent roots. And this method would only flush the legacy ones.
    if (includesLegacySyncCallbacks) {
      flushSyncCallbacks();
    }
  }
  function flushSyncCallbacks() {
    if (!isFlushingSyncQueue && syncQueue !== null) {
      // Prevent re-entrance.
      isFlushingSyncQueue = true;
      var i = 0;
      var previousUpdatePriority = getCurrentUpdatePriority();

      try {
        var isSync = true;
        var queue = syncQueue; // TODO: Is this necessary anymore? The only user code that runs in this
        // queue is in the render or commit phases.

        setCurrentUpdatePriority(DiscreteEventPriority);

        for (; i < queue.length; i++) {
          var callback = queue[i];

          do {
            callback = callback(isSync);
          } while (callback !== null);
        }

        syncQueue = null;
        includesLegacySyncCallbacks = false;
      } 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


        scheduleCallback(ImmediatePriority, flushSyncCallbacks);
        throw error;
      } finally {
        setCurrentUpdatePriority(previousUpdatePriority);
        isFlushingSyncQueue = false;
      }
    }

    return null;
  }

  // TODO: Use the unified fiber stack module instead of this local one?
  // Intentionally not using it yet to derisk the initial implementation, because
  // the way we push/pop these values is a bit unusual. If there's a mistake, I'd
  // rather the ids be wrong than crash the whole reconciler.
  var forkStack = [];
  var forkStackIndex = 0;
  var treeForkProvider = null;
  var treeForkCount = 0;
  var idStack = [];
  var idStackIndex = 0;
  var treeContextProvider = null;
  var treeContextId = 1;
  var treeContextOverflow = '';
  function isForkedChild(workInProgress) {
    warnIfNotHydrating();
    return (workInProgress.flags & Forked) !== NoFlags;
  }
  function getForksAtLevel(workInProgress) {
    warnIfNotHydrating();
    return treeForkCount;
  }
  function getTreeId() {
    var overflow = treeContextOverflow;
    var idWithLeadingBit = treeContextId;
    var id = idWithLeadingBit & ~getLeadingBit(idWithLeadingBit);
    return id.toString(32) + overflow;
  }
  function pushTreeFork(workInProgress, totalChildren) {
    // This is called right after we reconcile an array (or iterator) of child
    // fibers, because that's the only place where we know how many children in
    // the whole set without doing extra work later, or storing addtional
    // information on the fiber.
    //
    // That's why this function is separate from pushTreeId — it's called during
    // the render phase of the fork parent, not the child, which is where we push
    // the other context values.
    //
    // In the Fizz implementation this is much simpler because the child is
    // rendered in the same callstack as the parent.
    //
    // It might be better to just add a `forks` field to the Fiber type. It would
    // make this module simpler.
    warnIfNotHydrating();
    forkStack[forkStackIndex++] = treeForkCount;
    forkStack[forkStackIndex++] = treeForkProvider;
    treeForkProvider = workInProgress;
    treeForkCount = totalChildren;
  }
  function pushTreeId(workInProgress, totalChildren, index) {
    warnIfNotHydrating();
    idStack[idStackIndex++] = treeContextId;
    idStack[idStackIndex++] = treeContextOverflow;
    idStack[idStackIndex++] = treeContextProvider;
    treeContextProvider = workInProgress;
    var baseIdWithLeadingBit = treeContextId;
    var baseOverflow = treeContextOverflow; // The leftmost 1 marks the end of the sequence, non-inclusive. It's not part
    // of the id; we use it to account for leading 0s.

    var baseLength = getBitLength(baseIdWithLeadingBit) - 1;
    var baseId = baseIdWithLeadingBit & ~(1 << baseLength);
    var slot = index + 1;
    var length = getBitLength(totalChildren) + baseLength; // 30 is the max length we can store without overflowing, taking into
    // consideration the leading 1 we use to mark the end of the sequence.

    if (length > 30) {
      // We overflowed the bitwise-safe range. Fall back to slower algorithm.
      // This branch assumes the length of the base id is greater than 5; it won't
      // work for smaller ids, because you need 5 bits per character.
      //
      // We encode the id in multiple steps: first the base id, then the
      // remaining digits.
      //
      // Each 5 bit sequence corresponds to a single base 32 character. So for
      // example, if the current id is 23 bits long, we can convert 20 of those
      // bits into a string of 4 characters, with 3 bits left over.
      //
      // First calculate how many bits in the base id represent a complete
      // sequence of characters.
      var numberOfOverflowBits = baseLength - baseLength % 5; // Then create a bitmask that selects only those bits.

      var newOverflowBits = (1 << numberOfOverflowBits) - 1; // Select the bits, and convert them to a base 32 string.

      var newOverflow = (baseId & newOverflowBits).toString(32); // Now we can remove those bits from the base id.

      var restOfBaseId = baseId >> numberOfOverflowBits;
      var restOfBaseLength = baseLength - numberOfOverflowBits; // Finally, encode the rest of the bits using the normal algorithm. Because
      // we made more room, this time it won't overflow.

      var restOfLength = getBitLength(totalChildren) + restOfBaseLength;
      var restOfNewBits = slot << restOfBaseLength;
      var id = restOfNewBits | restOfBaseId;
      var overflow = newOverflow + baseOverflow;
      treeContextId = 1 << restOfLength | id;
      treeContextOverflow = overflow;
    } else {
      // Normal path
      var newBits = slot << baseLength;

      var _id = newBits | baseId;

      var _overflow = baseOverflow;
      treeContextId = 1 << length | _id;
      treeContextOverflow = _overflow;
    }
  }
  function pushMaterializedTreeId(workInProgress) {
    warnIfNotHydrating(); // This component materialized an id. This will affect any ids that appear
    // in its children.

    var returnFiber = workInProgress.return;

    if (returnFiber !== null) {
      var numberOfForks = 1;
      var slotIndex = 0;
      pushTreeFork(workInProgress, numberOfForks);
      pushTreeId(workInProgress, numberOfForks, slotIndex);
    }
  }

  function getBitLength(number) {
    return 32 - clz32(number);
  }

  function getLeadingBit(id) {
    return 1 << getBitLength(id) - 1;
  }

  function popTreeContext(workInProgress) {
    // Restore the previous values.
    // This is a bit more complicated than other context-like modules in Fiber
    // because the same Fiber may appear on the stack multiple times and for
    // different reasons. We have to keep popping until the work-in-progress is
    // no longer at the top of the stack.
    while (workInProgress === treeForkProvider) {
      treeForkProvider = forkStack[--forkStackIndex];
      forkStack[forkStackIndex] = null;
      treeForkCount = forkStack[--forkStackIndex];
      forkStack[forkStackIndex] = null;
    }

    while (workInProgress === treeContextProvider) {
      treeContextProvider = idStack[--idStackIndex];
      idStack[idStackIndex] = null;
      treeContextOverflow = idStack[--idStackIndex];
      idStack[idStackIndex] = null;
      treeContextId = idStack[--idStackIndex];
      idStack[idStackIndex] = null;
    }
  }
  function getSuspendedTreeContext() {
    warnIfNotHydrating();

    if (treeContextProvider !== null) {
      return {
        id: treeContextId,
        overflow: treeContextOverflow
      };
    } else {
      return null;
    }
  }
  function restoreSuspendedTreeContext(workInProgress, suspendedContext) {
    warnIfNotHydrating();
    idStack[idStackIndex++] = treeContextId;
    idStack[idStackIndex++] = treeContextOverflow;
    idStack[idStackIndex++] = treeContextProvider;
    treeContextId = suspendedContext.id;
    treeContextOverflow = suspendedContext.overflow;
    treeContextProvider = workInProgress;
  }

  function warnIfNotHydrating() {
    {
      if (!getIsHydrating()) {
        error('Expected to be hydrating. This is a bug in React. Please file ' + 'an issue.');
      }
    }
  }

  // This may have been an insertion or a hydration.

  var hydrationParentFiber = null;
  var nextHydratableInstance = null;
  var isHydrating = false; // This flag allows for warning supression when we expect there to be mismatches
  // due to earlier mismatches or a suspended fiber.

  var didSuspendOrErrorDEV = false; // Hydration errors that were thrown inside this boundary

  var hydrationErrors = null;

  function warnIfHydrating() {
    {
      if (isHydrating) {
        error('We should not be hydrating here. This is a bug in React. Please file a bug.');
      }
    }
  }

  function markDidThrowWhileHydratingDEV() {
    {
      didSuspendOrErrorDEV = true;
    }
  }
  function didSuspendOrErrorWhileHydratingDEV() {
    {
      return didSuspendOrErrorDEV;
    }
  }

  function enterHydrationState(fiber) {

    var parentInstance = fiber.stateNode.containerInfo;
    nextHydratableInstance = getFirstHydratableChildWithinContainer(parentInstance);
    hydrationParentFiber = fiber;
    isHydrating = true;
    hydrationErrors = null;
    didSuspendOrErrorDEV = false;
    return true;
  }

  function reenterHydrationStateFromDehydratedSuspenseInstance(fiber, suspenseInstance, treeContext) {

    nextHydratableInstance = getFirstHydratableChildWithinSuspenseInstance(suspenseInstance);
    hydrationParentFiber = fiber;
    isHydrating = true;
    hydrationErrors = null;
    didSuspendOrErrorDEV = false;

    if (treeContext !== null) {
      restoreSuspendedTreeContext(fiber, treeContext);
    }

    return true;
  }

  function warnUnhydratedInstance(returnFiber, instance) {
    {
      switch (returnFiber.tag) {
        case HostRoot:
          {
            didNotHydrateInstanceWithinContainer(returnFiber.stateNode.containerInfo, instance);
            break;
          }

        case HostComponent:
          {
            var isConcurrentMode = (returnFiber.mode & ConcurrentMode) !== NoMode;
            didNotHydrateInstance(returnFiber.type, returnFiber.memoizedProps, returnFiber.stateNode, instance, // TODO: Delete this argument when we remove the legacy root API.
            isConcurrentMode);
            break;
          }

        case SuspenseComponent:
          {
            var suspenseState = returnFiber.memoizedState;
            if (suspenseState.dehydrated !== null) didNotHydrateInstanceWithinSuspenseInstance(suspenseState.dehydrated, instance);
            break;
          }
      }
    }
  }

  function deleteHydratableInstance(returnFiber, instance) {
    warnUnhydratedInstance(returnFiber, instance);
    var childToDelete = createFiberFromHostInstanceForDeletion();
    childToDelete.stateNode = instance;
    childToDelete.return = returnFiber;
    var deletions = returnFiber.deletions;

    if (deletions === null) {
      returnFiber.deletions = [childToDelete];
      returnFiber.flags |= ChildDeletion;
    } else {
      deletions.push(childToDelete);
    }
  }

  function warnNonhydratedInstance(returnFiber, fiber) {
    {
      if (didSuspendOrErrorDEV) {
        // Inside a boundary that already suspended. We're currently rendering the
        // siblings of a suspended node. The mismatch may be due to the missing
        // data, so it's probably a false positive.
        return;
      }

      switch (returnFiber.tag) {
        case HostRoot:
          {
            var parentContainer = returnFiber.stateNode.containerInfo;

            switch (fiber.tag) {
              case HostComponent:
                var type = fiber.type;
                var props = fiber.pendingProps;
                didNotFindHydratableInstanceWithinContainer(parentContainer, type);
                break;

              case HostText:
                var text = fiber.pendingProps;
                didNotFindHydratableTextInstanceWithinContainer(parentContainer, text);
                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;
                  var isConcurrentMode = (returnFiber.mode & ConcurrentMode) !== NoMode;
                  didNotFindHydratableInstance(parentType, parentProps, parentInstance, _type, _props, // TODO: Delete this argument when we remove the legacy root API.
                  isConcurrentMode);
                  break;
                }

              case HostText:
                {
                  var _text = fiber.pendingProps;

                  var _isConcurrentMode = (returnFiber.mode & ConcurrentMode) !== NoMode;

                  didNotFindHydratableTextInstance(parentType, parentProps, parentInstance, _text, // TODO: Delete this argument when we remove the legacy root API.
                  _isConcurrentMode);
                  break;
                }
            }

            break;
          }

        case SuspenseComponent:
          {
            var suspenseState = returnFiber.memoizedState;
            var _parentInstance = suspenseState.dehydrated;
            if (_parentInstance !== null) switch (fiber.tag) {
              case HostComponent:
                var _type2 = fiber.type;
                var _props2 = fiber.pendingProps;
                didNotFindHydratableInstanceWithinSuspenseInstance(_parentInstance, _type2);
                break;

              case HostText:
                var _text2 = fiber.pendingProps;
                didNotFindHydratableTextInstanceWithinSuspenseInstance(_parentInstance, _text2);
                break;
            }
            break;
          }

        default:
          return;
      }
    }
  }

  function insertNonHydratedInstance(returnFiber, fiber) {
    fiber.flags = fiber.flags & ~Hydrating | Placement;
    warnNonhydratedInstance(returnFiber, fiber);
  }

  function tryHydrate(fiber, nextInstance) {
    switch (fiber.tag) {
      case HostComponent:
        {
          var type = fiber.type;
          var props = fiber.pendingProps;
          var instance = canHydrateInstance(nextInstance, type);

          if (instance !== null) {
            fiber.stateNode = instance;
            hydrationParentFiber = fiber;
            nextHydratableInstance = getFirstHydratableChild(instance);
            return true;
          }

          return false;
        }

      case HostText:
        {
          var text = fiber.pendingProps;
          var textInstance = canHydrateTextInstance(nextInstance, text);

          if (textInstance !== null) {
            fiber.stateNode = textInstance;
            hydrationParentFiber = fiber; // Text Instances don't have children so there's nothing to hydrate.

            nextHydratableInstance = null;
            return true;
          }

          return false;
        }

      case SuspenseComponent:
        {
          var suspenseInstance = canHydrateSuspenseInstance(nextInstance);

          if (suspenseInstance !== null) {
            var suspenseState = {
              dehydrated: suspenseInstance,
              treeContext: getSuspendedTreeContext(),
              retryLane: OffscreenLane
            };
            fiber.memoizedState = suspenseState; // Store the dehydrated fragment as a child fiber.
            // This simplifies the code for getHostSibling and deleting nodes,
            // since it doesn't have to consider all Suspense boundaries and
            // check if they're dehydrated ones or not.

            var dehydratedFragment = createFiberFromDehydratedFragment(suspenseInstance);
            dehydratedFragment.return = fiber;
            fiber.child = dehydratedFragment;
            hydrationParentFiber = fiber; // While a Suspense Instance does have children, we won't step into
            // it during the first pass. Instead, we'll reenter it later.

            nextHydratableInstance = null;
            return true;
          }

          return false;
        }

      default:
        return false;
    }
  }

  function shouldClientRenderOnMismatch(fiber) {
    return (fiber.mode & ConcurrentMode) !== NoMode && (fiber.flags & DidCapture) === NoFlags;
  }

  function throwOnHydrationMismatch(fiber) {
    throw new Error('Hydration failed because the initial UI does not match what was ' + 'rendered on the server.');
  }

  function tryToClaimNextHydratableInstance(fiber) {
    if (!isHydrating) {
      return;
    }

    var nextInstance = nextHydratableInstance;

    if (!nextInstance) {
      if (shouldClientRenderOnMismatch(fiber)) {
        warnNonhydratedInstance(hydrationParentFiber, fiber);
        throwOnHydrationMismatch();
      } // Nothing to hydrate. Make it an insertion.


      insertNonHydratedInstance(hydrationParentFiber, fiber);
      isHydrating = false;
      hydrationParentFiber = fiber;
      return;
    }

    var firstAttemptedInstance = nextInstance;

    if (!tryHydrate(fiber, nextInstance)) {
      if (shouldClientRenderOnMismatch(fiber)) {
        warnNonhydratedInstance(hydrationParentFiber, fiber);
        throwOnHydrationMismatch();
      } // 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);
      var prevHydrationParentFiber = hydrationParentFiber;

      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(prevHydrationParentFiber, firstAttemptedInstance);
    }
  }

  function prepareToHydrateHostInstance(fiber, rootContainerInstance, hostContext) {

    var instance = fiber.stateNode;
    var shouldWarnIfMismatchDev = !didSuspendOrErrorDEV;
    var updatePayload = hydrateInstance(instance, fiber.type, fiber.memoizedProps, rootContainerInstance, hostContext, fiber, shouldWarnIfMismatchDev); // 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) {

    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;
              var isConcurrentMode = (returnFiber.mode & ConcurrentMode) !== NoMode;
              didNotMatchHydratedContainerTextInstance(parentContainer, textInstance, textContent, // TODO: Delete this argument when we remove the legacy root API.
              isConcurrentMode);
              break;
            }

          case HostComponent:
            {
              var parentType = returnFiber.type;
              var parentProps = returnFiber.memoizedProps;
              var parentInstance = returnFiber.stateNode;

              var _isConcurrentMode2 = (returnFiber.mode & ConcurrentMode) !== NoMode;

              didNotMatchHydratedTextInstance(parentType, parentProps, parentInstance, textInstance, textContent, // TODO: Delete this argument when we remove the legacy root API.
              _isConcurrentMode2);
              break;
            }
        }
      }
    }

    return shouldUpdate;
  }

  function prepareToHydrateHostSuspenseInstance(fiber) {

    var suspenseState = fiber.memoizedState;
    var suspenseInstance = suspenseState !== null ? suspenseState.dehydrated : null;

    if (!suspenseInstance) {
      throw new Error('Expected to have a hydrated suspense instance. ' + 'This error is likely caused by a bug in React. Please file an issue.');
    }

    hydrateSuspenseInstance(suspenseInstance, fiber);
  }

  function skipPastDehydratedSuspenseInstance(fiber) {

    var suspenseState = fiber.memoizedState;
    var suspenseInstance = suspenseState !== null ? suspenseState.dehydrated : null;

    if (!suspenseInstance) {
      throw new Error('Expected to have a hydrated suspense instance. ' + 'This error is likely caused by a bug in React. Please file an issue.');
    }

    return getNextHydratableInstanceAfterSuspenseInstance(suspenseInstance);
  }

  function popToNextHostParent(fiber) {
    var parent = fiber.return;

    while (parent !== null && parent.tag !== HostComponent && parent.tag !== HostRoot && parent.tag !== SuspenseComponent) {
      parent = parent.return;
    }

    hydrationParentFiber = parent;
  }

  function popHydrationState(fiber) {

    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;
    } // 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. We also don't delete anything inside the root container.


    if (fiber.tag !== HostRoot && (fiber.tag !== HostComponent || shouldDeleteUnhydratedTailInstances(fiber.type) && !shouldSetTextContent(fiber.type, fiber.memoizedProps))) {
      var nextInstance = nextHydratableInstance;

      if (nextInstance) {
        if (shouldClientRenderOnMismatch(fiber)) {
          warnIfUnhydratedTailNodes(fiber);
          throwOnHydrationMismatch();
        } else {
          while (nextInstance) {
            deleteHydratableInstance(fiber, nextInstance);
            nextInstance = getNextHydratableSibling(nextInstance);
          }
        }
      }
    }

    popToNextHostParent(fiber);

    if (fiber.tag === SuspenseComponent) {
      nextHydratableInstance = skipPastDehydratedSuspenseInstance(fiber);
    } else {
      nextHydratableInstance = hydrationParentFiber ? getNextHydratableSibling(fiber.stateNode) : null;
    }

    return true;
  }

  function hasUnhydratedTailNodes() {
    return isHydrating && nextHydratableInstance !== null;
  }

  function warnIfUnhydratedTailNodes(fiber) {
    var nextInstance = nextHydratableInstance;

    while (nextInstance) {
      warnUnhydratedInstance(fiber, nextInstance);
      nextInstance = getNextHydratableSibling(nextInstance);
    }
  }

  function resetHydrationState() {

    hydrationParentFiber = null;
    nextHydratableInstance = null;
    isHydrating = false;
    didSuspendOrErrorDEV = false;
  }

  function upgradeHydrationErrorsToRecoverable() {
    if (hydrationErrors !== null) {
      // Successfully completed a forced client render. The errors that occurred
      // during the hydration attempt are now recovered. We will log them in
      // commit phase, once the entire tree has finished.
      queueRecoverableErrors(hydrationErrors);
      hydrationErrors = null;
    }
  }

  function getIsHydrating() {
    return isHydrating;
  }

  function queueHydrationError(error) {
    if (hydrationErrors === null) {
      hydrationErrors = [error];
    } else {
      hydrationErrors.push(error);
    }
  }

  var ReactCurrentBatchConfig$1 = ReactSharedInternals.ReactCurrentBatchConfig;
  var NoTransition = null;
  function requestCurrentTransition() {
    return ReactCurrentBatchConfig$1.transition;
  }

  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 & StrictLegacyMode) {
          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) {
      // Dedupe 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 & StrictLegacyMode && typeof instance.UNSAFE_componentWillMount === 'function') {
        pendingUNSAFE_ComponentWillMountWarnings.push(fiber);
      }

      if (typeof instance.componentWillReceiveProps === 'function' && instance.componentWillReceiveProps.__suppressDeprecationWarning !== true) {
        pendingComponentWillReceivePropsWarnings.push(fiber);
      }

      if (fiber.mode & StrictLegacyMode && typeof instance.UNSAFE_componentWillReceiveProps === 'function') {
        pendingUNSAFE_ComponentWillReceivePropsWarnings.push(fiber);
      }

      if (typeof instance.componentWillUpdate === 'function' && instance.componentWillUpdate.__suppressDeprecationWarning !== true) {
        pendingComponentWillUpdateWarnings.push(fiber);
      }

      if (fiber.mode & StrictLegacyMode && 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(getComponentNameFromFiber(fiber) || 'Component');
          didWarnAboutUnsafeLifecycles.add(fiber.type);
        });
        pendingComponentWillMountWarnings = [];
      }

      var UNSAFE_componentWillMountUniqueNames = new Set();

      if (pendingUNSAFE_ComponentWillMountWarnings.length > 0) {
        pendingUNSAFE_ComponentWillMountWarnings.forEach(function (fiber) {
          UNSAFE_componentWillMountUniqueNames.add(getComponentNameFromFiber(fiber) || 'Component');
          didWarnAboutUnsafeLifecycles.add(fiber.type);
        });
        pendingUNSAFE_ComponentWillMountWarnings = [];
      }

      var componentWillReceivePropsUniqueNames = new Set();

      if (pendingComponentWillReceivePropsWarnings.length > 0) {
        pendingComponentWillReceivePropsWarnings.forEach(function (fiber) {
          componentWillReceivePropsUniqueNames.add(getComponentNameFromFiber(fiber) || 'Component');
          didWarnAboutUnsafeLifecycles.add(fiber.type);
        });
        pendingComponentWillReceivePropsWarnings = [];
      }

      var UNSAFE_componentWillReceivePropsUniqueNames = new Set();

      if (pendingUNSAFE_ComponentWillReceivePropsWarnings.length > 0) {
        pendingUNSAFE_ComponentWillReceivePropsWarnings.forEach(function (fiber) {
          UNSAFE_componentWillReceivePropsUniqueNames.add(getComponentNameFromFiber(fiber) || 'Component');
          didWarnAboutUnsafeLifecycles.add(fiber.type);
        });
        pendingUNSAFE_ComponentWillReceivePropsWarnings = [];
      }

      var componentWillUpdateUniqueNames = new Set();

      if (pendingComponentWillUpdateWarnings.length > 0) {
        pendingComponentWillUpdateWarnings.forEach(function (fiber) {
          componentWillUpdateUniqueNames.add(getComponentNameFromFiber(fiber) || 'Component');
          didWarnAboutUnsafeLifecycles.add(fiber.type);
        });
        pendingComponentWillUpdateWarnings = [];
      }

      var UNSAFE_componentWillUpdateUniqueNames = new Set();

      if (pendingUNSAFE_ComponentWillUpdateWarnings.length > 0) {
        pendingUNSAFE_ComponentWillUpdateWarnings.forEach(function (fiber) {
          UNSAFE_componentWillUpdateUniqueNames.add(getComponentNameFromFiber(fiber) || '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);

        error('Using UNSAFE_componentWillMount in strict mode is not recommended and may indicate bugs in your code. ' + 'See https://reactjs.org/link/unsafe-component-lifecycles 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);

        error('Using UNSAFE_componentWillReceiveProps in strict mode is not recommended ' + 'and may indicate bugs in your code. ' + 'See https://reactjs.org/link/unsafe-component-lifecycles 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://reactjs.org/link/derived-state\n' + '\nPlease update the following components: %s', _sortedNames);
      }

      if (UNSAFE_componentWillUpdateUniqueNames.size > 0) {
        var _sortedNames2 = setToSortedString(UNSAFE_componentWillUpdateUniqueNames);

        error('Using UNSAFE_componentWillUpdate in strict mode is not recommended ' + 'and may indicate bugs in your code. ' + 'See https://reactjs.org/link/unsafe-component-lifecycles 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);

        warn('componentWillMount has been renamed, and is not recommended for use. ' + 'See https://reactjs.org/link/unsafe-component-lifecycles 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 18.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);

        warn('componentWillReceiveProps has been renamed, and is not recommended for use. ' + 'See https://reactjs.org/link/unsafe-component-lifecycles 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://reactjs.org/link/derived-state\n' + '* Rename componentWillReceiveProps to UNSAFE_componentWillReceiveProps to suppress ' + 'this warning in non-strict mode. In React 18.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);

        warn('componentWillUpdate has been renamed, and is not recommended for use. ' + 'See https://reactjs.org/link/unsafe-component-lifecycles 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 18.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) {
        error('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) {
        if (fiberArray.length === 0) {
          return;
        }

        var firstFiber = fiberArray[0];
        var uniqueNames = new Set();
        fiberArray.forEach(function (fiber) {
          uniqueNames.add(getComponentNameFromFiber(fiber) || 'Component');
          didWarnAboutLegacyContext.add(fiber.type);
        });
        var sortedNames = setToSortedString(uniqueNames);

        try {
          setCurrentFiber(firstFiber);

          error('Legacy context API has been detected within a strict-mode tree.' + '\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: https://reactjs.org/link/legacy-context', sortedNames);
        } finally {
          resetCurrentFiber();
        }
      });
    };

    ReactStrictModeWarnings.discardPendingWarnings = function () {
      pendingComponentWillMountWarnings = [];
      pendingUNSAFE_ComponentWillMountWarnings = [];
      pendingComponentWillReceivePropsWarnings = [];
      pendingUNSAFE_ComponentWillReceivePropsWarnings = [];
      pendingComponentWillUpdateWarnings = [];
      pendingUNSAFE_ComponentWillUpdateWarnings = [];
      pendingLegacyContextWarning = new Map();
    };
  }

  var didWarnAboutMaps;
  var didWarnAboutGenerators;
  var didWarnAboutStringRefs;
  var ownerHasKeyUseWarning;
  var ownerHasFunctionTypeWarning;

  var warnForMissingKey = function (child, returnFiber) {};

  {
    didWarnAboutMaps = false;
    didWarnAboutGenerators = false;
    didWarnAboutStringRefs = {};
    /**
     * 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, returnFiber) {
      if (child === null || typeof child !== 'object') {
        return;
      }

      if (!child._store || child._store.validated || child.key != null) {
        return;
      }

      if (typeof child._store !== 'object') {
        throw new 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 componentName = getComponentNameFromFiber(returnFiber) || 'Component';

      if (ownerHasKeyUseWarning[componentName]) {
        return;
      }

      ownerHasKeyUseWarning[componentName] = true;

      error('Each child in a list should have a unique ' + '"key" prop. See https://reactjs.org/link/warning-keys for ' + 'more information.');
    };
  }

  function isReactClass(type) {
    return type.prototype && type.prototype.isReactComponent;
  }

  function coerceRef(returnFiber, current, element) {
    var mixedRef = element.ref;

    if (mixedRef !== null && typeof mixedRef !== 'function' && typeof mixedRef !== 'object') {
      {
        // TODO: Clean this up once we turn on the string ref warning for
        // everyone, because the strict mode case will no longer be relevant
        if ((returnFiber.mode & StrictLegacyMode || warnAboutStringRefs) && // We warn in ReactElement.js if owner and self are equal for string refs
        // because these cannot be automatically converted to an arrow function
        // using a codemod. Therefore, we don't have to warn about string refs again.
        !(element._owner && element._self && element._owner.stateNode !== element._self) && // Will already throw with "Function components cannot have string refs"
        !(element._owner && element._owner.tag !== ClassComponent) && // Will already warn with "Function components cannot be given refs"
        !(typeof element.type === 'function' && !isReactClass(element.type)) && // Will already throw with "Element ref was specified as a string (someStringRef) but no owner was set"
        element._owner) {
          var componentName = getComponentNameFromFiber(returnFiber) || 'Component';

          if (!didWarnAboutStringRefs[componentName]) {
            {
              error('Component "%s" contains the string ref "%s". Support for string refs ' + 'will be removed in a future major release. We recommend using ' + 'useRef() or createRef() instead. ' + 'Learn more about using refs safely here: ' + 'https://reactjs.org/link/strict-mode-string-ref', componentName, mixedRef);
            }

            didWarnAboutStringRefs[componentName] = true;
          }
        }
      }

      if (element._owner) {
        var owner = element._owner;
        var inst;

        if (owner) {
          var ownerFiber = owner;

          if (ownerFiber.tag !== ClassComponent) {
            throw new Error('Function components cannot have string refs. ' + 'We recommend using useRef() instead. ' + 'Learn more about using refs safely here: ' + 'https://reactjs.org/link/strict-mode-string-ref');
          }

          inst = ownerFiber.stateNode;
        }

        if (!inst) {
          throw new Error("Missing owner for string ref " + mixedRef + ". This error is likely caused by a " + 'bug in React. Please file an issue.');
        } // Assigning this to a const so Flow knows it won't change in the closure


        var resolvedInst = inst;

        {
          checkPropStringCoercion(mixedRef, 'ref');
        }

        var stringRef = '' + mixedRef; // Check if previous string ref matches new string ref

        if (current !== null && current.ref !== null && typeof current.ref === 'function' && current.ref._stringRef === stringRef) {
          return current.ref;
        }

        var ref = function (value) {
          var refs = resolvedInst.refs;

          if (value === null) {
            delete refs[stringRef];
          } else {
            refs[stringRef] = value;
          }
        };

        ref._stringRef = stringRef;
        return ref;
      } else {
        if (typeof mixedRef !== 'string') {
          throw new Error('Expected ref to be a function, a string, an object returned by React.createRef(), or null.');
        }

        if (!element._owner) {
          throw new Error("Element ref was specified as a string (" + mixedRef + ") but no owner was set. This could happen for one of" + ' the following reasons:\n' + '1. You may be adding a ref to a function component\n' + "2. You may be adding a ref to a component that was not created inside a component's render method\n" + '3. You have multiple copies of React loaded\n' + 'See https://reactjs.org/link/refs-must-have-owner for more information.');
        }
      }
    }

    return mixedRef;
  }

  function throwOnInvalidObjectType(returnFiber, newChild) {
    var childString = Object.prototype.toString.call(newChild);
    throw new Error("Objects are not valid as a React child (found: " + (childString === '[object Object]' ? 'object with keys {' + Object.keys(newChild).join(', ') + '}' : childString) + "). " + 'If you meant to render a collection of children, use an array ' + 'instead.');
  }

  function warnOnFunctionType(returnFiber) {
    {
      var componentName = getComponentNameFromFiber(returnFiber) || 'Component';

      if (ownerHasFunctionTypeWarning[componentName]) {
        return;
      }

      ownerHasFunctionTypeWarning[componentName] = true;

      error('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.');
    }
  }

  function resolveLazy(lazyType) {
    var payload = lazyType._payload;
    var init = lazyType._init;
    return init(payload);
  } // 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;
      }

      var deletions = returnFiber.deletions;

      if (deletions === null) {
        returnFiber.deletions = [childToDelete];
        returnFiber.flags |= ChildDeletion;
      } else {
        deletions.push(childToDelete);
      }
    }

    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
      // instead.
      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) {
      // 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);
      clone.index = 0;
      clone.sibling = null;
      return clone;
    }

    function placeChild(newFiber, lastPlacedIndex, newIndex) {
      newFiber.index = newIndex;

      if (!shouldTrackSideEffects) {
        // During hydration, the useId algorithm needs to know which fibers are
        // part of a list of children (arrays, iterators).
        newFiber.flags |= Forked;
        return lastPlacedIndex;
      }

      var current = newFiber.alternate;

      if (current !== null) {
        var oldIndex = current.index;

        if (oldIndex < lastPlacedIndex) {
          // This is a move.
          newFiber.flags |= Placement;
          return lastPlacedIndex;
        } else {
          // This item can stay in place.
          return oldIndex;
        }
      } else {
        // This is an insertion.
        newFiber.flags |= 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.flags |= Placement;
      }

      return newFiber;
    }

    function updateTextNode(returnFiber, current, textContent, lanes) {
      if (current === null || current.tag !== HostText) {
        // Insert
        var created = createFiberFromText(textContent, returnFiber.mode, lanes);
        created.return = returnFiber;
        return created;
      } else {
        // Update
        var existing = useFiber(current, textContent);
        existing.return = returnFiber;
        return existing;
      }
    }

    function updateElement(returnFiber, current, element, lanes) {
      var elementType = element.type;

      if (elementType === REACT_FRAGMENT_TYPE) {
        return updateFragment(returnFiber, current, element.props.children, lanes, element.key);
      }

      if (current !== null) {
        if (current.elementType === elementType || ( // Keep this check inline so it only runs on the false path:
         isCompatibleFamilyForHotReloading(current, element) ) || // Lazy types should reconcile their resolved type.
        // We need to do this after the Hot Reloading check above,
        // because hot reloading has different semantics than prod because
        // it doesn't resuspend. So we can't let the call below suspend.
        typeof elementType === 'object' && elementType !== null && elementType.$$typeof === REACT_LAZY_TYPE && resolveLazy(elementType) === current.type) {
          // Move based on index
          var existing = useFiber(current, element.props);
          existing.ref = coerceRef(returnFiber, current, element);
          existing.return = returnFiber;

          {
            existing._debugSource = element._source;
            existing._debugOwner = element._owner;
          }

          return existing;
        }
      } // Insert


      var created = createFiberFromElement(element, returnFiber.mode, lanes);
      created.ref = coerceRef(returnFiber, current, element);
      created.return = returnFiber;
      return created;
    }

    function updatePortal(returnFiber, current, portal, lanes) {
      if (current === null || current.tag !== HostPortal || current.stateNode.containerInfo !== portal.containerInfo || current.stateNode.implementation !== portal.implementation) {
        // Insert
        var created = createFiberFromPortal(portal, returnFiber.mode, lanes);
        created.return = returnFiber;
        return created;
      } else {
        // Update
        var existing = useFiber(current, portal.children || []);
        existing.return = returnFiber;
        return existing;
      }
    }

    function updateFragment(returnFiber, current, fragment, lanes, key) {
      if (current === null || current.tag !== Fragment) {
        // Insert
        var created = createFiberFromFragment(fragment, returnFiber.mode, lanes, key);
        created.return = returnFiber;
        return created;
      } else {
        // Update
        var existing = useFiber(current, fragment);
        existing.return = returnFiber;
        return existing;
      }
    }

    function createChild(returnFiber, newChild, lanes) {
      if (typeof newChild === 'string' && newChild !== '' || 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, lanes);
        created.return = returnFiber;
        return created;
      }

      if (typeof newChild === 'object' && newChild !== null) {
        switch (newChild.$$typeof) {
          case REACT_ELEMENT_TYPE:
            {
              var _created = createFiberFromElement(newChild, returnFiber.mode, lanes);

              _created.ref = coerceRef(returnFiber, null, newChild);
              _created.return = returnFiber;
              return _created;
            }

          case REACT_PORTAL_TYPE:
            {
              var _created2 = createFiberFromPortal(newChild, returnFiber.mode, lanes);

              _created2.return = returnFiber;
              return _created2;
            }

          case REACT_LAZY_TYPE:
            {
              var payload = newChild._payload;
              var init = newChild._init;
              return createChild(returnFiber, init(payload), lanes);
            }
        }

        if (isArray(newChild) || getIteratorFn(newChild)) {
          var _created3 = createFiberFromFragment(newChild, returnFiber.mode, lanes, null);

          _created3.return = returnFiber;
          return _created3;
        }

        throwOnInvalidObjectType(returnFiber, newChild);
      }

      {
        if (typeof newChild === 'function') {
          warnOnFunctionType(returnFiber);
        }
      }

      return null;
    }

    function updateSlot(returnFiber, oldFiber, newChild, lanes) {
      // Update the fiber if the keys match, otherwise return null.
      var key = oldFiber !== null ? oldFiber.key : null;

      if (typeof newChild === 'string' && newChild !== '' || 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, lanes);
      }

      if (typeof newChild === 'object' && newChild !== null) {
        switch (newChild.$$typeof) {
          case REACT_ELEMENT_TYPE:
            {
              if (newChild.key === key) {
                return updateElement(returnFiber, oldFiber, newChild, lanes);
              } else {
                return null;
              }
            }

          case REACT_PORTAL_TYPE:
            {
              if (newChild.key === key) {
                return updatePortal(returnFiber, oldFiber, newChild, lanes);
              } else {
                return null;
              }
            }

          case REACT_LAZY_TYPE:
            {
              var payload = newChild._payload;
              var init = newChild._init;
              return updateSlot(returnFiber, oldFiber, init(payload), lanes);
            }
        }

        if (isArray(newChild) || getIteratorFn(newChild)) {
          if (key !== null) {
            return null;
          }

          return updateFragment(returnFiber, oldFiber, newChild, lanes, null);
        }

        throwOnInvalidObjectType(returnFiber, newChild);
      }

      {
        if (typeof newChild === 'function') {
          warnOnFunctionType(returnFiber);
        }
      }

      return null;
    }

    function updateFromMap(existingChildren, returnFiber, newIdx, newChild, lanes) {
      if (typeof newChild === 'string' && newChild !== '' || 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, lanes);
      }

      if (typeof newChild === 'object' && newChild !== null) {
        switch (newChild.$$typeof) {
          case REACT_ELEMENT_TYPE:
            {
              var _matchedFiber = existingChildren.get(newChild.key === null ? newIdx : newChild.key) || null;

              return updateElement(returnFiber, _matchedFiber, newChild, lanes);
            }

          case REACT_PORTAL_TYPE:
            {
              var _matchedFiber2 = existingChildren.get(newChild.key === null ? newIdx : newChild.key) || null;

              return updatePortal(returnFiber, _matchedFiber2, newChild, lanes);
            }

          case REACT_LAZY_TYPE:
            var payload = newChild._payload;
            var init = newChild._init;
            return updateFromMap(existingChildren, returnFiber, newIdx, init(payload), lanes);
        }

        if (isArray(newChild) || getIteratorFn(newChild)) {
          var _matchedFiber3 = existingChildren.get(newIdx) || null;

          return updateFragment(returnFiber, _matchedFiber3, newChild, lanes, null);
        }

        throwOnInvalidObjectType(returnFiber, newChild);
      }

      {
        if (typeof newChild === 'function') {
          warnOnFunctionType(returnFiber);
        }
      }

      return null;
    }
    /**
     * Warns if there is a duplicate or missing key
     */


    function warnOnInvalidKey(child, knownKeys, returnFiber) {
      {
        if (typeof child !== 'object' || child === null) {
          return knownKeys;
        }

        switch (child.$$typeof) {
          case REACT_ELEMENT_TYPE:
          case REACT_PORTAL_TYPE:
            warnForMissingKey(child, returnFiber);
            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;
            }

            error('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;

          case REACT_LAZY_TYPE:
            var payload = child._payload;
            var init = child._init;
            warnOnInvalidKey(init(payload), knownKeys, returnFiber);
            break;
        }
      }

      return knownKeys;
    }

    function reconcileChildrenArray(returnFiber, currentFirstChild, newChildren, lanes) {
      // 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, returnFiber);
        }
      }

      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], lanes);

        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);

        if (getIsHydrating()) {
          var numberOfForks = newIdx;
          pushTreeFork(returnFiber, numberOfForks);
        }

        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], lanes);

          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;
        }

        if (getIsHydrating()) {
          var _numberOfForks = newIdx;
          pushTreeFork(returnFiber, _numberOfForks);
        }

        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], lanes);

        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);
        });
      }

      if (getIsHydrating()) {
        var _numberOfForks2 = newIdx;
        pushTreeFork(returnFiber, _numberOfForks2);
      }

      return resultingFirstChild;
    }

    function reconcileChildrenIterator(returnFiber, currentFirstChild, newChildrenIterable, lanes) {
      // This is the same implementation as reconcileChildrenArray(),
      // but using the iterator instead.
      var iteratorFn = getIteratorFn(newChildrenIterable);

      if (typeof iteratorFn !== 'function') {
        throw new 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') {
          if (!didWarnAboutGenerators) {
            error('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.');
          }

          didWarnAboutGenerators = true;
        } // Warn about using Maps as children


        if (newChildrenIterable.entries === iteratorFn) {
          if (!didWarnAboutMaps) {
            error('Using Maps as children is not supported. ' + 'Use an array of keyed ReactElements instead.');
          }

          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, returnFiber);
          }
        }
      }

      var newChildren = iteratorFn.call(newChildrenIterable);

      if (newChildren == null) {
        throw new 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, lanes);

        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);

        if (getIsHydrating()) {
          var numberOfForks = newIdx;
          pushTreeFork(returnFiber, numberOfForks);
        }

        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, lanes);

          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;
        }

        if (getIsHydrating()) {
          var _numberOfForks3 = newIdx;
          pushTreeFork(returnFiber, _numberOfForks3);
        }

        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, lanes);

        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);
        });
      }

      if (getIsHydrating()) {
        var _numberOfForks4 = newIdx;
        pushTreeFork(returnFiber, _numberOfForks4);
      }

      return resultingFirstChild;
    }

    function reconcileSingleTextNode(returnFiber, currentFirstChild, textContent, lanes) {
      // 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);
        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, lanes);
      created.return = returnFiber;
      return created;
    }

    function reconcileSingleElement(returnFiber, currentFirstChild, element, lanes) {
      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) {
          var elementType = element.type;

          if (elementType === REACT_FRAGMENT_TYPE) {
            if (child.tag === Fragment) {
              deleteRemainingChildren(returnFiber, child.sibling);
              var existing = useFiber(child, element.props.children);
              existing.return = returnFiber;

              {
                existing._debugSource = element._source;
                existing._debugOwner = element._owner;
              }

              return existing;
            }
          } else {
            if (child.elementType === elementType || ( // Keep this check inline so it only runs on the false path:
             isCompatibleFamilyForHotReloading(child, element) ) || // Lazy types should reconcile their resolved type.
            // We need to do this after the Hot Reloading check above,
            // because hot reloading has different semantics than prod because
            // it doesn't resuspend. So we can't let the call below suspend.
            typeof elementType === 'object' && elementType !== null && elementType.$$typeof === REACT_LAZY_TYPE && resolveLazy(elementType) === child.type) {
              deleteRemainingChildren(returnFiber, child.sibling);

              var _existing = useFiber(child, element.props);

              _existing.ref = coerceRef(returnFiber, child, element);
              _existing.return = returnFiber;

              {
                _existing._debugSource = element._source;
                _existing._debugOwner = element._owner;
              }

              return _existing;
            }
          } // Didn't match.


          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, lanes, element.key);
        created.return = returnFiber;
        return created;
      } else {
        var _created4 = createFiberFromElement(element, returnFiber.mode, lanes);

        _created4.ref = coerceRef(returnFiber, currentFirstChild, element);
        _created4.return = returnFiber;
        return _created4;
      }
    }

    function reconcileSinglePortal(returnFiber, currentFirstChild, portal, lanes) {
      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 || []);
            existing.return = returnFiber;
            return existing;
          } else {
            deleteRemainingChildren(returnFiber, child);
            break;
          }
        } else {
          deleteChild(returnFiber, child);
        }

        child = child.sibling;
      }

      var created = createFiberFromPortal(portal, returnFiber.mode, lanes);
      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, lanes) {
      // 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


      if (typeof newChild === 'object' && newChild !== null) {
        switch (newChild.$$typeof) {
          case REACT_ELEMENT_TYPE:
            return placeSingleChild(reconcileSingleElement(returnFiber, currentFirstChild, newChild, lanes));

          case REACT_PORTAL_TYPE:
            return placeSingleChild(reconcileSinglePortal(returnFiber, currentFirstChild, newChild, lanes));

          case REACT_LAZY_TYPE:
            var payload = newChild._payload;
            var init = newChild._init; // TODO: This function is supposed to be non-recursive.

            return reconcileChildFibers(returnFiber, currentFirstChild, init(payload), lanes);
        }

        if (isArray(newChild)) {
          return reconcileChildrenArray(returnFiber, currentFirstChild, newChild, lanes);
        }

        if (getIteratorFn(newChild)) {
          return reconcileChildrenIterator(returnFiber, currentFirstChild, newChild, lanes);
        }

        throwOnInvalidObjectType(returnFiber, newChild);
      }

      if (typeof newChild === 'string' && newChild !== '' || typeof newChild === 'number') {
        return placeSingleChild(reconcileSingleTextNode(returnFiber, currentFirstChild, '' + newChild, lanes));
      }

      {
        if (typeof newChild === 'function') {
          warnOnFunctionType(returnFiber);
        }
      } // Remaining cases are all treated as empty.


      return deleteRemainingChildren(returnFiber, currentFirstChild);
    }

    return reconcileChildFibers;
  }

  var reconcileChildFibers = ChildReconciler(true);
  var mountChildFibers = ChildReconciler(false);
  function cloneChildFibers(current, workInProgress) {
    if (current !== null && workInProgress.child !== current.child) {
      throw new Error('Resuming work not yet implemented.');
    }

    if (workInProgress.child === null) {
      return;
    }

    var currentChild = workInProgress.child;
    var newChild = createWorkInProgress(currentChild, currentChild.pendingProps);
    workInProgress.child = newChild;
    newChild.return = workInProgress;

    while (currentChild.sibling !== null) {
      currentChild = currentChild.sibling;
      newChild = newChild.sibling = createWorkInProgress(currentChild, currentChild.pendingProps);
      newChild.return = workInProgress;
    }

    newChild.sibling = null;
  } // Reset a workInProgress child set to prepare it for a second pass.

  function resetChildFibers(workInProgress, lanes) {
    var child = workInProgress.child;

    while (child !== null) {
      resetWorkInProgress(child, lanes);
      child = child.sibling;
    }
  }

  var valueCursor = createCursor(null);
  var rendererSigil;

  {
    // Use this to detect multiple renderers using the same context
    rendererSigil = {};
  }

  var currentlyRenderingFiber = null;
  var lastContextDependency = null;
  var lastFullyObservedContext = 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;
    lastFullyObservedContext = null;

    {
      isDisallowedContextReadInDEV = false;
    }
  }
  function enterDisallowedContextReadInDEV() {
    {
      isDisallowedContextReadInDEV = true;
    }
  }
  function exitDisallowedContextReadInDEV() {
    {
      isDisallowedContextReadInDEV = false;
    }
  }
  function pushProvider(providerFiber, context, nextValue) {
    {
      push(valueCursor, context._currentValue, providerFiber);
      context._currentValue = nextValue;

      {
        if (context._currentRenderer !== undefined && context._currentRenderer !== null && context._currentRenderer !== rendererSigil) {
          error('Detected multiple renderers concurrently rendering the ' + 'same context provider. This is currently unsupported.');
        }

        context._currentRenderer = rendererSigil;
      }
    }
  }
  function popProvider(context, providerFiber) {
    var currentValue = valueCursor.current;
    pop(valueCursor, providerFiber);

    {
      {
        context._currentValue = currentValue;
      }
    }
  }
  function scheduleContextWorkOnParentPath(parent, renderLanes, propagationRoot) {
    // Update the child lanes of all the ancestors, including the alternates.
    var node = parent;

    while (node !== null) {
      var alternate = node.alternate;

      if (!isSubsetOfLanes(node.childLanes, renderLanes)) {
        node.childLanes = mergeLanes(node.childLanes, renderLanes);

        if (alternate !== null) {
          alternate.childLanes = mergeLanes(alternate.childLanes, renderLanes);
        }
      } else if (alternate !== null && !isSubsetOfLanes(alternate.childLanes, renderLanes)) {
        alternate.childLanes = mergeLanes(alternate.childLanes, renderLanes);
      }

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

      node = node.return;
    }

    {
      if (node !== propagationRoot) {
        error('Expected to find the propagation root when scheduling context work. ' + 'This error is likely caused by a bug in React. Please file an issue.');
      }
    }
  }
  function propagateContextChange(workInProgress, context, renderLanes) {
    {
      propagateContextChange_eager(workInProgress, context, renderLanes);
    }
  }

  function propagateContextChange_eager(workInProgress, context, renderLanes) {

    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) {
            // Match! Schedule an update on this fiber.
            if (fiber.tag === ClassComponent) {
              // Schedule a force update on the work-in-progress.
              var lane = pickArbitraryLane(renderLanes);
              var update = createUpdate(NoTimestamp, lane);
              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.
              // Inlined `enqueueUpdate` to remove interleaved update check

              var updateQueue = fiber.updateQueue;

              if (updateQueue === null) ; else {
                var sharedQueue = updateQueue.shared;
                var pending = sharedQueue.pending;

                if (pending === null) {
                  // This is the first update. Create a circular list.
                  update.next = update;
                } else {
                  update.next = pending.next;
                  pending.next = update;
                }

                sharedQueue.pending = update;
              }
            }

            fiber.lanes = mergeLanes(fiber.lanes, renderLanes);
            var alternate = fiber.alternate;

            if (alternate !== null) {
              alternate.lanes = mergeLanes(alternate.lanes, renderLanes);
            }

            scheduleContextWorkOnParentPath(fiber.return, renderLanes, workInProgress); // Mark the updated lanes on the list, too.

            list.lanes = mergeLanes(list.lanes, renderLanes); // 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 (fiber.tag === DehydratedFragment) {
        // If a dehydrated suspense boundary 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.
        var parentSuspense = fiber.return;

        if (parentSuspense === null) {
          throw new Error('We just came from a parent so we must have had a parent. This is a bug in React.');
        }

        parentSuspense.lanes = mergeLanes(parentSuspense.lanes, renderLanes);
        var _alternate = parentSuspense.alternate;

        if (_alternate !== null) {
          _alternate.lanes = mergeLanes(_alternate.lanes, renderLanes);
        } // 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 childLanes on
        // this fiber to indicate that a context has changed.


        scheduleContextWorkOnParentPath(parentSuspense, renderLanes, workInProgress);
        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, renderLanes) {
    currentlyRenderingFiber = workInProgress;
    lastContextDependency = null;
    lastFullyObservedContext = null;
    var dependencies = workInProgress.dependencies;

    if (dependencies !== null) {
      {
        var firstContext = dependencies.firstContext;

        if (firstContext !== null) {
          if (includesSomeLane(dependencies.lanes, renderLanes)) {
            // 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) {
    {
      // 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.
      if (isDisallowedContextReadInDEV) {
        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().');
      }
    }

    var value =  context._currentValue ;

    if (lastFullyObservedContext === context) ; else {
      var contextItem = {
        context: context,
        memoizedValue: value,
        next: null
      };

      if (lastContextDependency === null) {
        if (currentlyRenderingFiber === null) {
          throw new 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 = {
          lanes: NoLanes,
          firstContext: contextItem
        };
      } else {
        // Append a new context item.
        lastContextDependency = lastContextDependency.next = contextItem;
      }
    }

    return value;
  }

  // render. When this render exits, either because it finishes or because it is
  // interrupted, the interleaved updates will be transferred onto the main part
  // of the queue.

  var concurrentQueues = null;
  function pushConcurrentUpdateQueue(queue) {
    if (concurrentQueues === null) {
      concurrentQueues = [queue];
    } else {
      concurrentQueues.push(queue);
    }
  }
  function finishQueueingConcurrentUpdates() {
    // Transfer the interleaved updates onto the main queue. Each queue has a
    // `pending` field and an `interleaved` field. When they are not null, they
    // point to the last node in a circular linked list. We need to append the
    // interleaved list to the end of the pending list by joining them into a
    // single, circular list.
    if (concurrentQueues !== null) {
      for (var i = 0; i < concurrentQueues.length; i++) {
        var queue = concurrentQueues[i];
        var lastInterleavedUpdate = queue.interleaved;

        if (lastInterleavedUpdate !== null) {
          queue.interleaved = null;
          var firstInterleavedUpdate = lastInterleavedUpdate.next;
          var lastPendingUpdate = queue.pending;

          if (lastPendingUpdate !== null) {
            var firstPendingUpdate = lastPendingUpdate.next;
            lastPendingUpdate.next = firstInterleavedUpdate;
            lastInterleavedUpdate.next = firstPendingUpdate;
          }

          queue.pending = lastInterleavedUpdate;
        }
      }

      concurrentQueues = null;
    }
  }
  function enqueueConcurrentHookUpdate(fiber, queue, update, lane) {
    var interleaved = queue.interleaved;

    if (interleaved === null) {
      // This is the first update. Create a circular list.
      update.next = update; // At the end of the current render, this queue's interleaved updates will
      // be transferred to the pending queue.

      pushConcurrentUpdateQueue(queue);
    } else {
      update.next = interleaved.next;
      interleaved.next = update;
    }

    queue.interleaved = update;
    return markUpdateLaneFromFiberToRoot(fiber, lane);
  }
  function enqueueConcurrentHookUpdateAndEagerlyBailout(fiber, queue, update, lane) {
    var interleaved = queue.interleaved;

    if (interleaved === null) {
      // This is the first update. Create a circular list.
      update.next = update; // At the end of the current render, this queue's interleaved updates will
      // be transferred to the pending queue.

      pushConcurrentUpdateQueue(queue);
    } else {
      update.next = interleaved.next;
      interleaved.next = update;
    }

    queue.interleaved = update;
  }
  function enqueueConcurrentClassUpdate(fiber, queue, update, lane) {
    var interleaved = queue.interleaved;

    if (interleaved === null) {
      // This is the first update. Create a circular list.
      update.next = update; // At the end of the current render, this queue's interleaved updates will
      // be transferred to the pending queue.

      pushConcurrentUpdateQueue(queue);
    } else {
      update.next = interleaved.next;
      interleaved.next = update;
    }

    queue.interleaved = update;
    return markUpdateLaneFromFiberToRoot(fiber, lane);
  }
  function enqueueConcurrentRenderForLane(fiber, lane) {
    return markUpdateLaneFromFiberToRoot(fiber, lane);
  } // Calling this function outside this module should only be done for backwards
  // compatibility and should always be accompanied by a warning.

  var unsafe_markUpdateLaneFromFiberToRoot = markUpdateLaneFromFiberToRoot;

  function markUpdateLaneFromFiberToRoot(sourceFiber, lane) {
    // Update the source fiber's lanes
    sourceFiber.lanes = mergeLanes(sourceFiber.lanes, lane);
    var alternate = sourceFiber.alternate;

    if (alternate !== null) {
      alternate.lanes = mergeLanes(alternate.lanes, lane);
    }

    {
      if (alternate === null && (sourceFiber.flags & (Placement | Hydrating)) !== NoFlags) {
        warnAboutUpdateOnNotYetMountedFiberInDEV(sourceFiber);
      }
    } // Walk the parent path to the root and update the child lanes.


    var node = sourceFiber;
    var parent = sourceFiber.return;

    while (parent !== null) {
      parent.childLanes = mergeLanes(parent.childLanes, lane);
      alternate = parent.alternate;

      if (alternate !== null) {
        alternate.childLanes = mergeLanes(alternate.childLanes, lane);
      } else {
        {
          if ((parent.flags & (Placement | Hydrating)) !== NoFlags) {
            warnAboutUpdateOnNotYetMountedFiberInDEV(sourceFiber);
          }
        }
      }

      node = parent;
      parent = parent.return;
    }

    if (node.tag === HostRoot) {
      var root = node.stateNode;
      return root;
    } else {
      return null;
    }
  }

  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;
  var currentlyProcessingQueue;

  {
    didWarnUpdateInsideUpdate = false;
    currentlyProcessingQueue = null;
  }

  function initializeUpdateQueue(fiber) {
    var queue = {
      baseState: fiber.memoizedState,
      firstBaseUpdate: null,
      lastBaseUpdate: null,
      shared: {
        pending: null,
        interleaved: null,
        lanes: NoLanes
      },
      effects: null
    };
    fiber.updateQueue = queue;
  }
  function cloneUpdateQueue(current, workInProgress) {
    // Clone the update queue from current. Unless it's already a clone.
    var queue = workInProgress.updateQueue;
    var currentQueue = current.updateQueue;

    if (queue === currentQueue) {
      var clone = {
        baseState: currentQueue.baseState,
        firstBaseUpdate: currentQueue.firstBaseUpdate,
        lastBaseUpdate: currentQueue.lastBaseUpdate,
        shared: currentQueue.shared,
        effects: currentQueue.effects
      };
      workInProgress.updateQueue = clone;
    }
  }
  function createUpdate(eventTime, lane) {
    var update = {
      eventTime: eventTime,
      lane: lane,
      tag: UpdateState,
      payload: null,
      callback: null,
      next: null
    };
    return update;
  }
  function enqueueUpdate(fiber, update, lane) {
    var updateQueue = fiber.updateQueue;

    if (updateQueue === null) {
      // Only occurs if the fiber has been unmounted.
      return null;
    }

    var sharedQueue = updateQueue.shared;

    {
      if (currentlyProcessingQueue === sharedQueue && !didWarnUpdateInsideUpdate) {
        error('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;
      }
    }

    if (isUnsafeClassRenderPhaseUpdate()) {
      // This is an unsafe render phase update. Add directly to the update
      // queue so we can process it immediately during the current render.
      var pending = sharedQueue.pending;

      if (pending === null) {
        // This is the first update. Create a circular list.
        update.next = update;
      } else {
        update.next = pending.next;
        pending.next = update;
      }

      sharedQueue.pending = update; // Update the childLanes even though we're most likely already rendering
      // this fiber. This is for backwards compatibility in the case where you
      // update a different component during render phase than the one that is
      // currently renderings (a pattern that is accompanied by a warning).

      return unsafe_markUpdateLaneFromFiberToRoot(fiber, lane);
    } else {
      return enqueueConcurrentClassUpdate(fiber, sharedQueue, update, lane);
    }
  }
  function entangleTransitions(root, fiber, lane) {
    var updateQueue = fiber.updateQueue;

    if (updateQueue === null) {
      // Only occurs if the fiber has been unmounted.
      return;
    }

    var sharedQueue = updateQueue.shared;

    if (isTransitionLane(lane)) {
      var queueLanes = sharedQueue.lanes; // If any entangled lanes are no longer pending on the root, then they must
      // have finished. We can remove them from the shared queue, which represents
      // a superset of the actually pending lanes. In some cases we may entangle
      // more than we need to, but that's OK. In fact it's worse if we *don't*
      // entangle when we should.

      queueLanes = intersectLanes(queueLanes, root.pendingLanes); // Entangle the new transition lane with the other transition lanes.

      var newQueueLanes = mergeLanes(queueLanes, lane);
      sharedQueue.lanes = newQueueLanes; // Even if queue.lanes already include lane, we don't know for certain if
      // the lane finished since the last time we entangled it. So we need to
      // entangle it again, just to be sure.

      markRootEntangled(root, newQueueLanes);
    }
  }
  function enqueueCapturedUpdate(workInProgress, capturedUpdate) {
    // Captured updates are updates that are thrown by a child during the render
    // phase. They should be discarded if the render is aborted. Therefore,
    // we should only put them on the work-in-progress queue, not the current one.
    var queue = workInProgress.updateQueue; // Check if the work-in-progress queue is a clone.

    var current = workInProgress.alternate;

    if (current !== null) {
      var currentQueue = current.updateQueue;

      if (queue === currentQueue) {
        // The work-in-progress queue is the same as current. This happens when
        // we bail out on a parent fiber that then captures an error thrown by
        // a child. Since we want to append the update only to the work-in
        // -progress queue, we need to clone the updates. We usually clone during
        // processUpdateQueue, but that didn't happen in this case because we
        // skipped over the parent when we bailed out.
        var newFirst = null;
        var newLast = null;
        var firstBaseUpdate = queue.firstBaseUpdate;

        if (firstBaseUpdate !== null) {
          // Loop through the updates and clone them.
          var update = firstBaseUpdate;

          do {
            var clone = {
              eventTime: update.eventTime,
              lane: update.lane,
              tag: update.tag,
              payload: update.payload,
              callback: update.callback,
              next: null
            };

            if (newLast === null) {
              newFirst = newLast = clone;
            } else {
              newLast.next = clone;
              newLast = clone;
            }

            update = update.next;
          } while (update !== null); // Append the captured update the end of the cloned list.


          if (newLast === null) {
            newFirst = newLast = capturedUpdate;
          } else {
            newLast.next = capturedUpdate;
            newLast = capturedUpdate;
          }
        } else {
          // There are no base updates.
          newFirst = newLast = capturedUpdate;
        }

        queue = {
          baseState: currentQueue.baseState,
          firstBaseUpdate: newFirst,
          lastBaseUpdate: newLast,
          shared: currentQueue.shared,
          effects: currentQueue.effects
        };
        workInProgress.updateQueue = queue;
        return;
      }
    } // Append the update to the end of the list.


    var lastBaseUpdate = queue.lastBaseUpdate;

    if (lastBaseUpdate === null) {
      queue.firstBaseUpdate = capturedUpdate;
    } else {
      lastBaseUpdate.next = capturedUpdate;
    }

    queue.lastBaseUpdate = capturedUpdate;
  }

  function getStateFromUpdate(workInProgress, queue, update, prevState, nextProps, instance) {
    switch (update.tag) {
      case ReplaceState:
        {
          var payload = update.payload;

          if (typeof payload === 'function') {
            // Updater function
            {
              enterDisallowedContextReadInDEV();
            }

            var nextState = payload.call(instance, prevState, nextProps);

            {
              if ( workInProgress.mode & StrictLegacyMode) {
                setIsStrictModeForDevtools(true);

                try {
                  payload.call(instance, prevState, nextProps);
                } finally {
                  setIsStrictModeForDevtools(false);
                }
              }

              exitDisallowedContextReadInDEV();
            }

            return nextState;
          } // State object


          return payload;
        }

      case CaptureUpdate:
        {
          workInProgress.flags = workInProgress.flags & ~ShouldCapture | DidCapture;
        }
      // Intentional fallthrough

      case UpdateState:
        {
          var _payload = update.payload;
          var partialState;

          if (typeof _payload === 'function') {
            // Updater function
            {
              enterDisallowedContextReadInDEV();
            }

            partialState = _payload.call(instance, prevState, nextProps);

            {
              if ( workInProgress.mode & StrictLegacyMode) {
                setIsStrictModeForDevtools(true);

                try {
                  _payload.call(instance, prevState, nextProps);
                } finally {
                  setIsStrictModeForDevtools(false);
                }
              }

              exitDisallowedContextReadInDEV();
            }
          } else {
            // Partial state object
            partialState = _payload;
          }

          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, props, instance, renderLanes) {
    // This is always non-null on a ClassComponent or HostRoot
    var queue = workInProgress.updateQueue;
    hasForceUpdate = false;

    {
      currentlyProcessingQueue = queue.shared;
    }

    var firstBaseUpdate = queue.firstBaseUpdate;
    var lastBaseUpdate = queue.lastBaseUpdate; // Check if there are pending updates. If so, transfer them to the base queue.

    var pendingQueue = queue.shared.pending;

    if (pendingQueue !== null) {
      queue.shared.pending = null; // The pending queue is circular. Disconnect the pointer between first
      // and last so that it's non-circular.

      var lastPendingUpdate = pendingQueue;
      var firstPendingUpdate = lastPendingUpdate.next;
      lastPendingUpdate.next = null; // Append pending updates to base queue

      if (lastBaseUpdate === null) {
        firstBaseUpdate = firstPendingUpdate;
      } else {
        lastBaseUpdate.next = firstPendingUpdate;
      }

      lastBaseUpdate = lastPendingUpdate; // If there's a current queue, and it's different from the base queue, then
      // we need to transfer the updates to that queue, too. Because the base
      // queue is a singly-linked list with no cycles, we can append to both
      // lists and take advantage of structural sharing.
      // TODO: Pass `current` as argument

      var current = workInProgress.alternate;

      if (current !== null) {
        // This is always non-null on a ClassComponent or HostRoot
        var currentQueue = current.updateQueue;
        var currentLastBaseUpdate = currentQueue.lastBaseUpdate;

        if (currentLastBaseUpdate !== lastBaseUpdate) {
          if (currentLastBaseUpdate === null) {
            currentQueue.firstBaseUpdate = firstPendingUpdate;
          } else {
            currentLastBaseUpdate.next = firstPendingUpdate;
          }

          currentQueue.lastBaseUpdate = lastPendingUpdate;
        }
      }
    } // These values may change as we process the queue.


    if (firstBaseUpdate !== null) {
      // Iterate through the list of updates to compute the result.
      var newState = queue.baseState; // TODO: Don't need to accumulate this. Instead, we can remove renderLanes
      // from the original lanes.

      var newLanes = NoLanes;
      var newBaseState = null;
      var newFirstBaseUpdate = null;
      var newLastBaseUpdate = null;
      var update = firstBaseUpdate;

      do {
        var updateLane = update.lane;
        var updateEventTime = update.eventTime;

        if (!isSubsetOfLanes(renderLanes, updateLane)) {
          // Priority is insufficient. Skip this update. If this is the first
          // skipped update, the previous update/state is the new base
          // update/state.
          var clone = {
            eventTime: updateEventTime,
            lane: updateLane,
            tag: update.tag,
            payload: update.payload,
            callback: update.callback,
            next: null
          };

          if (newLastBaseUpdate === null) {
            newFirstBaseUpdate = newLastBaseUpdate = clone;
            newBaseState = newState;
          } else {
            newLastBaseUpdate = newLastBaseUpdate.next = clone;
          } // Update the remaining priority in the queue.


          newLanes = mergeLanes(newLanes, updateLane);
        } else {
          // This update does have sufficient priority.
          if (newLastBaseUpdate !== null) {
            var _clone = {
              eventTime: updateEventTime,
              // This update is going to be committed so we never want uncommit
              // it. Using NoLane works because 0 is a subset of all bitmasks, so
              // this will never be skipped by the check above.
              lane: NoLane,
              tag: update.tag,
              payload: update.payload,
              callback: update.callback,
              next: null
            };
            newLastBaseUpdate = newLastBaseUpdate.next = _clone;
          } // Process this update.


          newState = getStateFromUpdate(workInProgress, queue, update, newState, props, instance);
          var callback = update.callback;

          if (callback !== null && // If the update was already committed, we should not queue its
          // callback again.
          update.lane !== NoLane) {
            workInProgress.flags |= Callback;
            var effects = queue.effects;

            if (effects === null) {
              queue.effects = [update];
            } else {
              effects.push(update);
            }
          }
        }

        update = update.next;

        if (update === null) {
          pendingQueue = queue.shared.pending;

          if (pendingQueue === null) {
            break;
          } else {
            // An update was scheduled from inside a reducer. Add the new
            // pending updates to the end of the list and keep processing.
            var _lastPendingUpdate = pendingQueue; // Intentionally unsound. Pending updates form a circular list, but we
            // unravel them when transferring them to the base queue.

            var _firstPendingUpdate = _lastPendingUpdate.next;
            _lastPendingUpdate.next = null;
            update = _firstPendingUpdate;
            queue.lastBaseUpdate = _lastPendingUpdate;
            queue.shared.pending = null;
          }
        }
      } while (true);

      if (newLastBaseUpdate === null) {
        newBaseState = newState;
      }

      queue.baseState = newBaseState;
      queue.firstBaseUpdate = newFirstBaseUpdate;
      queue.lastBaseUpdate = newLastBaseUpdate; // Interleaved updates are stored on a separate queue. We aren't going to
      // process them during this render, but we do need to track which lanes
      // are remaining.

      var lastInterleaved = queue.shared.interleaved;

      if (lastInterleaved !== null) {
        var interleaved = lastInterleaved;

        do {
          newLanes = mergeLanes(newLanes, interleaved.lane);
          interleaved = interleaved.next;
        } while (interleaved !== lastInterleaved);
      } else if (firstBaseUpdate === null) {
        // `queue.lanes` is used for entangling transitions. We can set it back to
        // zero once the queue is empty.
        queue.shared.lanes = NoLanes;
      } // 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.


      markSkippedUpdateLanes(newLanes);
      workInProgress.lanes = newLanes;
      workInProgress.memoizedState = newState;
    }

    {
      currentlyProcessingQueue = null;
    }
  }

  function callCallback(callback, context) {
    if (typeof callback !== 'function') {
      throw new 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) {
    // Commit the effects
    var effects = finishedQueue.effects;
    finishedQueue.effects = null;

    if (effects !== null) {
      for (var i = 0; i < effects.length; i++) {
        var effect = effects[i];
        var callback = effect.callback;

        if (callback !== null) {
          effect.callback = null;
          callCallback(callback, instance);
        }
      }
    }
  }

  var NO_CONTEXT = {};
  var contextStackCursor$1 = createCu
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