'use strict';

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

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

var React = require('react');
var React__default = _interopDefault(React);
var shallowEqual = _interopDefault(require('shallowequal'));
var levenshtein = _interopDefault(require('fast-levenshtein'));
var PropTypes = _interopDefault(require('prop-types'));
var defaultPolyfill = require('react-lifecycles-compat');
var defaultPolyfill__default = _interopDefault(defaultPolyfill);
var hoistNonReactStatic = _interopDefault(require('hoist-non-react-statics'));

var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) {
  return typeof obj;
} : function (obj) {
  return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
};

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

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

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

  return target;
};

var inherits = function (subClass, superClass) {
  if (typeof superClass !== "function" && superClass !== null) {
    throw new TypeError("Super expression must either be null or a function, not " + typeof superClass);
  }

  subClass.prototype = Object.create(superClass && superClass.prototype, {
    constructor: {
      value: subClass,
      enumerable: false,
      writable: true,
      configurable: true
    }
  });
  if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;
};

var possibleConstructorReturn = function (self, call) {
  if (!self) {
    throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
  }

  return call && (typeof call === "object" || typeof call === "function") ? call : self;
};

/* eslint-disable no-underscore-dangle */

var isCompositeComponent = function isCompositeComponent(type) {
  return typeof type === 'function';
};

var getComponentDisplayName = function getComponentDisplayName(type) {
  var displayName = type.displayName || type.name;
  return displayName && displayName !== 'ReactComponent' ? displayName : 'Component';
};

var reactLifeCycleMountMethods = ['componentWillMount', 'componentDidMount'];

function isReactClass(Component) {
  return !!(Component.prototype && (React__default.Component.prototype.isPrototypeOf(Component.prototype) ||
  // react 14 support
  Component.prototype.isReactComponent || Component.prototype.componentWillMount || Component.prototype.componentWillUnmount || Component.prototype.componentDidMount || Component.prototype.componentDidUnmount || Component.prototype.render));
}

function isReactClassInstance(Component) {
  return Component && isReactClass({ prototype: Object.getPrototypeOf(Component) });
}

var getInternalInstance = function getInternalInstance(instance) {
  return instance._reactInternalFiber || // React 16
  instance._reactInternalInstance || // React 15
  null;
};

var updateInstance = function updateInstance(instance) {
  var updater = instance.updater,
      forceUpdate = instance.forceUpdate;

  if (typeof forceUpdate === 'function') {
    instance.forceUpdate();
  } else if (updater && typeof updater.enqueueForceUpdate === 'function') {
    updater.enqueueForceUpdate(instance);
  }
};

var isFragmentNode = function isFragmentNode(_ref) {
  var type = _ref.type;
  return React__default.Fragment && type === React__default.Fragment;
};

var ContextType = React__default.createContext ? React__default.createContext() : null;
var ConsumerType = ContextType && ContextType.Consumer.$$typeof;
var ProviderType = ContextType && ContextType.Provider.$$typeof;

var CONTEXT_CURRENT_VALUE = '_currentValue';

var isContextConsumer = function isContextConsumer(_ref2) {
  var type = _ref2.type;
  return type && (typeof type === 'undefined' ? 'undefined' : _typeof(type)) === 'object' && type.$$typeof === ConsumerType;
};
var isContextProvider = function isContextProvider(_ref3) {
  var type = _ref3.type;
  return type && (typeof type === 'undefined' ? 'undefined' : _typeof(type)) === 'object' && type.$$typeof === ProviderType;
};
var getContextProvider = function getContextProvider(type) {
  return type && type._context;
};

var generation = 1;

var increment = function increment() {
  return generation++;
};
var get$1 = function get() {
  return generation;
};

var PREFIX = '__reactstandin__';
var PROXY_KEY = PREFIX + 'key';
var GENERATION = PREFIX + 'proxyGeneration';
var REGENERATE_METHOD = PREFIX + 'regenerateByEval';
var UNWRAP_PROXY = PREFIX + 'getCurrent';
var CACHED_RESULT = PREFIX + 'cachedResult';
var PROXY_IS_MOUNTED = PREFIX + 'isMounted';

var configuration = {
  // Log level
  logLevel: 'error',

  // Allows using SFC without changes. leading to some components not updated
  pureSFC: false,

  // Allows SFC to be used, enables "intermediate" components used by Relay, should be disabled for Preact
  allowSFC: true,

  // Hook on babel component register.
  onComponentRegister: false
};

/* eslint-disable no-console */

var logger = {
  debug: function debug() {
    if (['debug'].indexOf(configuration.logLevel) !== -1) {
      var _console;

      (_console = console).debug.apply(_console, arguments);
    }
  },
  log: function log() {
    if (['debug', 'log'].indexOf(configuration.logLevel) !== -1) {
      var _console2;

      (_console2 = console).log.apply(_console2, arguments);
    }
  },
  warn: function warn() {
    if (['debug', 'log', 'warn'].indexOf(configuration.logLevel) !== -1) {
      var _console3;

      (_console3 = console).warn.apply(_console3, arguments);
    }
  },
  error: function error() {
    if (['debug', 'log', 'warn', 'error'].indexOf(configuration.logLevel) !== -1) {
      var _console4;

      (_console4 = console).error.apply(_console4, arguments);
    }
  }
};

/* eslint-disable no-eval, func-names */

function safeReactConstructor(Component, lastInstance) {
  try {
    if (lastInstance) {
      return new Component(lastInstance.props, lastInstance.context);
    }
    return new Component({}, {});
  } catch (e) {
    // some components, like Redux connect could not be created without proper context
  }
  return null;
}

function isNativeFunction(fn) {
  return typeof fn === 'function' ? fn.toString().indexOf('[native code]') > 0 : false;
}

var identity = function identity(a) {
  return a;
};
var indirectEval = eval;

var doesSupportClasses = function () {
  try {
    indirectEval('class Test {}');
    return true;
  } catch (e) {
    return false;
  }
}();

var ES6ProxyComponentFactory = doesSupportClasses && indirectEval('\n(function(InitialParent, postConstructionAction) {\n  return class ProxyComponent extends InitialParent {\n    constructor(props, context) {\n      super(props, context)\n      postConstructionAction.call(this)\n    }\n  }\n})\n');

var ES5ProxyComponentFactory = function ES5ProxyComponentFactory(InitialParent, postConstructionAction) {
  function ProxyComponent(props, context) {
    InitialParent.call(this, props, context);
    postConstructionAction.call(this);
  }
  ProxyComponent.prototype = Object.create(InitialParent.prototype);
  Object.setPrototypeOf(ProxyComponent, InitialParent);
  return ProxyComponent;
};

var proxyClassCreator = doesSupportClasses ? ES6ProxyComponentFactory : ES5ProxyComponentFactory;

function getOwnKeys(target) {
  return [].concat(Object.getOwnPropertyNames(target), Object.getOwnPropertySymbols(target));
}

function shallowStringsEqual(a, b) {
  for (var key in a) {
    if (String(a[key]) !== String(b[key])) {
      return false;
    }
  }
  return true;
}

function deepPrototypeUpdate(dest, source) {
  var deepDest = Object.getPrototypeOf(dest);
  var deepSrc = Object.getPrototypeOf(source);
  if (deepDest && deepSrc && deepSrc !== deepDest) {
    deepPrototypeUpdate(deepDest, deepSrc);
  }
  if (source.prototype && source.prototype !== dest.prototype) {
    dest.prototype = source.prototype;
  }
}

function safeDefineProperty(target, key, props) {
  try {
    Object.defineProperty(target, key, props);
  } catch (e) {
    logger.warn('Error while wrapping', key, ' -> ', e);
  }
}

var RESERVED_STATICS = ['length', 'displayName', 'name', 'arguments', 'caller', 'prototype', 'toString', 'valueOf', 'isStatelessFunctionalProxy', PROXY_KEY, UNWRAP_PROXY];

function transferStaticProps(ProxyComponent, savedDescriptors, PreviousComponent, NextComponent) {
  Object.getOwnPropertyNames(ProxyComponent).forEach(function (key) {
    if (RESERVED_STATICS.indexOf(key) !== -1) {
      return;
    }

    var prevDescriptor = Object.getOwnPropertyDescriptor(ProxyComponent, key);
    var savedDescriptor = savedDescriptors[key];

    if (!shallowEqual(prevDescriptor, savedDescriptor)) {
      safeDefineProperty(NextComponent, key, prevDescriptor);
    }
  });

  // Copy newly defined static methods and properties
  Object.getOwnPropertyNames(NextComponent).forEach(function (key) {
    if (RESERVED_STATICS.indexOf(key) !== -1) {
      return;
    }

    var prevDescriptor = PreviousComponent && Object.getOwnPropertyDescriptor(ProxyComponent, key);
    var savedDescriptor = savedDescriptors[key];

    // Skip redefined descriptors
    if (prevDescriptor && savedDescriptor && !shallowEqual(savedDescriptor, prevDescriptor)) {
      safeDefineProperty(NextComponent, key, prevDescriptor);
      return;
    }

    if (prevDescriptor && !savedDescriptor) {
      safeDefineProperty(ProxyComponent, key, prevDescriptor);
      return;
    }

    var nextDescriptor = _extends({}, Object.getOwnPropertyDescriptor(NextComponent, key), {
      configurable: true
    });

    savedDescriptors[key] = nextDescriptor;
    safeDefineProperty(ProxyComponent, key, nextDescriptor);
  });

  // Remove static methods and properties that are no longer defined
  Object.getOwnPropertyNames(ProxyComponent).forEach(function (key) {
    if (RESERVED_STATICS.indexOf(key) !== -1) {
      return;
    }
    // Skip statics that exist on the next class
    if (NextComponent.hasOwnProperty(key)) {
      return;
    }
    // Skip non-configurable statics
    var proxyDescriptor = Object.getOwnPropertyDescriptor(ProxyComponent, key);
    if (proxyDescriptor && !proxyDescriptor.configurable) {
      return;
    }

    var prevDescriptor = PreviousComponent && Object.getOwnPropertyDescriptor(PreviousComponent, key);
    var savedDescriptor = savedDescriptors[key];

    // Skip redefined descriptors
    if (prevDescriptor && savedDescriptor && !shallowEqual(savedDescriptor, prevDescriptor)) {
      return;
    }

    safeDefineProperty(ProxyComponent, key, {
      value: undefined
    });
  });

  return savedDescriptors;
}

function mergeComponents(ProxyComponent, NextComponent, InitialComponent, lastInstance, injectedMembers) {
  var injectedCode = {};
  try {
    var nextInstance = safeReactConstructor(NextComponent, lastInstance);

    try {
      // Bypass babel class inheritance checking
      deepPrototypeUpdate(InitialComponent, NextComponent);
    } catch (e) {
      // It was ES6 class
    }

    var proxyInstance = safeReactConstructor(ProxyComponent, lastInstance);

    if (!nextInstance || !proxyInstance) {
      return injectedCode;
    }

    var mergedAttrs = _extends({}, proxyInstance, nextInstance);
    var hasRegenerate = proxyInstance[REGENERATE_METHOD];
    var ownKeys = getOwnKeys(Object.getPrototypeOf(ProxyComponent.prototype));
    Object.keys(mergedAttrs).forEach(function (key) {
      if (key.startsWith(PREFIX)) return;
      var nextAttr = nextInstance[key];
      var prevAttr = proxyInstance[key];
      if (nextAttr) {
        if (isNativeFunction(nextAttr) || isNativeFunction(prevAttr)) {
          // this is bound method
          var isSameArity = nextAttr.length === prevAttr.length;
          var existsInPrototype = ownKeys.indexOf(key) >= 0 || ProxyComponent.prototype[key];
          if ((isSameArity || !prevAttr) && existsInPrototype) {
            if (hasRegenerate) {
              injectedCode[key] = 'Object.getPrototypeOf(this)[\'' + key + '\'].bind(this)';
            } else {
              logger.warn('React Hot Loader:,', 'Non-controlled class', ProxyComponent.name, 'contains a new native or bound function ', key, nextAttr, '. Unable to reproduce');
            }
          } else {
            logger.warn('React Hot Loader:', 'Updated class ', ProxyComponent.name, 'contains native or bound function ', key, nextAttr, '. Unable to reproduce, use arrow functions instead.', '(arity: ' + nextAttr.length + '/' + prevAttr.length + ', proto: ' + (existsInPrototype ? 'yes' : 'no'));
          }
          return;
        }

        var nextString = String(nextAttr);
        var injectedBefore = injectedMembers[key];
        var isArrow = nextString.indexOf('=>') >= 0;
        var isFunction = nextString.indexOf('function') >= 0 || isArrow;
        var referToThis = nextString.indexOf('this') >= 0;
        if (nextString !== String(prevAttr) || injectedBefore && nextString !== String(injectedBefore) || isArrow && referToThis) {
          if (!hasRegenerate) {
            if (!isFunction) {
              // just copy prop over
              injectedCode[key] = nextAttr;
            } else {
              logger.warn('React Hot Loader:', ' Updated class ', ProxyComponent.name, 'had different code for', key, nextAttr, '. Unable to reproduce. Regeneration support needed.');
            }
          } else {
            injectedCode[key] = nextAttr;
          }
        }
      }
    });
  } catch (e) {
    logger.warn('React Hot Loader:', e);
  }
  return injectedCode;
}

function checkLifeCycleMethods(ProxyComponent, NextComponent) {
  try {
    var p1 = Object.getPrototypeOf(ProxyComponent.prototype);
    var p2 = NextComponent.prototype;
    reactLifeCycleMountMethods.forEach(function (key) {
      var d1 = Object.getOwnPropertyDescriptor(p1, key) || { value: p1[key] };
      var d2 = Object.getOwnPropertyDescriptor(p2, key) || { value: p2[key] };
      if (!shallowStringsEqual(d1, d2)) {
        logger.warn('React Hot Loader:', 'You did update', ProxyComponent.name, 's lifecycle method', key, '. Unable to repeat');
      }
    });
  } catch (e) {
    // Ignore errors
  }
}

function inject(target, currentGeneration, injectedMembers) {
  if (target[GENERATION] !== currentGeneration) {
    var hasRegenerate = !!target[REGENERATE_METHOD];
    Object.keys(injectedMembers).forEach(function (key) {
      try {
        if (hasRegenerate) {
          var usedThis = String(injectedMembers[key]).match(/_this([\d]+)/gi) || [];
          target[REGENERATE_METHOD](key, '(function REACT_HOT_LOADER_SANDBOX () {\n          var _this  = this; // common babel transpile\n          ' + usedThis.map(function (name) {
            return 'var ' + name + ' = this;';
          }) + '\n\n          return ' + injectedMembers[key] + ';\n          }).call(this)');
        } else {
          target[key] = injectedMembers[key];
        }
      } catch (e) {
        logger.warn('React Hot Loader: Failed to regenerate method ', key, ' of class ', target);
        logger.warn('got error', e);
      }
    });

    target[GENERATION] = currentGeneration;
  }
}

var has = Object.prototype.hasOwnProperty;

var proxies = new WeakMap();

var resetClassProxies = function resetClassProxies() {
  proxies = new WeakMap();
};

var blackListedClassMembers = ['constructor', 'render', 'componentWillMount', 'componentDidMount', 'componentWillReceiveProps', 'componentWillUnmount', 'hotComponentRender', 'getInitialState', 'getDefaultProps'];

var defaultRenderOptions = {
  componentWillRender: identity,
  componentDidUpdate: function componentDidUpdate(result) {
    return result;
  },
  componentDidRender: function componentDidRender(result) {
    return result;
  }
};

var defineClassMember = function defineClassMember(Class, methodName, methodBody) {
  return safeDefineProperty(Class.prototype, methodName, {
    configurable: true,
    writable: true,
    enumerable: false,
    value: methodBody
  });
};

var defineClassMembers = function defineClassMembers(Class, methods) {
  return Object.keys(methods).forEach(function (methodName) {
    return defineClassMember(Class, methodName, methods[methodName]);
  });
};

var setSFPFlag = function setSFPFlag(component, flag) {
  return safeDefineProperty(component, 'isStatelessFunctionalProxy', {
    configurable: false,
    writable: false,
    enumerable: false,
    value: flag
  });
};

var copyMethodDescriptors = function copyMethodDescriptors(target, source) {
  if (source) {
    // it is possible to use `function-double` to construct an ideal clone, but does not make a sence
    var keys = Object.getOwnPropertyNames(source);

    keys.forEach(function (key) {
      return safeDefineProperty(target, key, Object.getOwnPropertyDescriptor(source, key));
    });

    safeDefineProperty(target, 'toString', {
      configurable: true,
      writable: false,
      enumerable: false,
      value: function toString() {
        return String(source);
      }
    });
  }

  return target;
};

function createClassProxy(InitialComponent, proxyKey, options) {
  var renderOptions = _extends({}, defaultRenderOptions, options);
  // Prevent double wrapping.
  // Given a proxy class, return the existing proxy managing it.
  var existingProxy = proxies.get(InitialComponent);

  if (existingProxy) {
    return existingProxy;
  }

  var CurrentComponent = void 0;
  var savedDescriptors = {};
  var injectedMembers = {};
  var proxyGeneration = 0;
  var classUpdatePostponed = null;
  var instancesCount = 0;
  var isFunctionalComponent = !isReactClass(InitialComponent);

  var lastInstance = null;

  function postConstructionAction() {
    this[GENERATION] = 0;

    lastInstance = this;
    // is there is an update pending
    if (classUpdatePostponed) {
      var callUpdate = classUpdatePostponed;
      classUpdatePostponed = null;
      callUpdate();
    }
    // As long we can't override constructor
    // every class shall evolve from a base class
    inject(this, proxyGeneration, injectedMembers);
  }

  function proxiedUpdate() {
    if (this) {
      inject(this, proxyGeneration, injectedMembers);
    }
  }

  function lifeCycleWrapperFactory(wrapperName) {
    var sideEffect = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : identity;

    return copyMethodDescriptors(function wrappedMethod() {
      proxiedUpdate.call(this);
      sideEffect(this);

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

      return !isFunctionalComponent && CurrentComponent.prototype[wrapperName] && CurrentComponent.prototype[wrapperName].apply(this, rest);
    }, InitialComponent.prototype && InitialComponent.prototype[wrapperName]);
  }

  function methodWrapperFactory(wrapperName, realMethod) {
    return copyMethodDescriptors(function wrappedMethod() {
      for (var _len2 = arguments.length, rest = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
        rest[_key2] = arguments[_key2];
      }

      return realMethod.apply(this, rest);
    }, realMethod);
  }

  var fakeBasePrototype = function fakeBasePrototype(Base) {
    return Object.getOwnPropertyNames(Base).filter(function (key) {
      return blackListedClassMembers.indexOf(key) === -1;
    }).filter(function (key) {
      var descriptor = Object.getOwnPropertyDescriptor(Base, key);
      return typeof descriptor.value === 'function';
    }).reduce(function (acc, key) {
      acc[key] = methodWrapperFactory(key, Base[key]);
      return acc;
    }, {});
  };

  var componentDidMount = lifeCycleWrapperFactory('componentDidMount', function (target) {
    target[PROXY_IS_MOUNTED] = true;
    instancesCount++;
  });
  var componentDidUpdate = lifeCycleWrapperFactory('componentDidUpdate', renderOptions.componentDidUpdate);
  var componentWillUnmount = lifeCycleWrapperFactory('componentWillUnmount', function (target) {
    target[PROXY_IS_MOUNTED] = false;
    instancesCount--;
  });

  function hotComponentRender() {
    // repeating subrender call to keep RENDERED_GENERATION up to date
    renderOptions.componentWillRender(this);
    proxiedUpdate.call(this);
    var result = void 0;

    // We need to use hasOwnProperty here, as the cached result is a React node
    // and can be null or some other falsy value.
    if (has.call(this, CACHED_RESULT)) {
      result = this[CACHED_RESULT];
      delete this[CACHED_RESULT];
    } else if (isFunctionalComponent) {
      result = CurrentComponent(this.props, this.context);
    } else {
      result = (CurrentComponent.prototype.render || this.render).apply(this,
      // eslint-disable-next-line prefer-rest-params
      arguments);
    }

    return renderOptions.componentDidRender.call(this, result);
  }

  function proxiedRender() {
    renderOptions.componentWillRender(this);

    for (var _len3 = arguments.length, args = Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
      args[_key3] = arguments[_key3];
    }

    return hotComponentRender.call.apply(hotComponentRender, [this].concat(args));
  }

  var defineProxyMethods = function defineProxyMethods(Proxy) {
    var Base = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

    defineClassMembers(Proxy, _extends({}, fakeBasePrototype(Base), {
      render: proxiedRender,
      hotComponentRender: hotComponentRender,
      componentDidMount: componentDidMount,
      componentDidUpdate: componentDidUpdate,
      componentWillUnmount: componentWillUnmount
    }));
  };

  var _ProxyFacade = void 0;
  var ProxyComponent = null;
  var proxy = void 0;

  if (!isFunctionalComponent) {
    // Component
    ProxyComponent = proxyClassCreator(InitialComponent, postConstructionAction);

    defineProxyMethods(ProxyComponent, InitialComponent.prototype);

    _ProxyFacade = ProxyComponent;
  } else if (!configuration.allowSFC) {
    // SFC Converted to component. Does not support returning precreated instances from render.
    ProxyComponent = proxyClassCreator(React.Component, postConstructionAction);

    defineProxyMethods(ProxyComponent);
    _ProxyFacade = ProxyComponent;
  } else {
    // SFC

    // This function only gets called for the initial mount. The actual
    // rendered component instance will be the return value.

    // eslint-disable-next-line func-names
    _ProxyFacade = function ProxyFacade(props, context) {
      var result = CurrentComponent(props, context);

      // simple SFC, could continue to be SFC
      if (configuration.pureSFC) {
        if (!CurrentComponent.contextTypes) {
          if (!_ProxyFacade.isStatelessFunctionalProxy) {
            setSFPFlag(_ProxyFacade, true);
          }

          return renderOptions.componentDidRender(result);
        }
      }
      setSFPFlag(_ProxyFacade, false);

      // This is a Relay-style container constructor. We can't do the prototype-
      // style wrapping for this as we do elsewhere, so just we just pass it
      // through as-is.
      if (isReactClassInstance(result)) {
        ProxyComponent = null;

        // Relay lazily sets statics like getDerivedStateFromProps on initial
        // render in lazy construction, so we need to do the same here.
        transferStaticProps(_ProxyFacade, savedDescriptors, null, CurrentComponent);

        return result;
      }

      // Otherwise, it's a normal functional component. Build the real proxy
      // and use it going forward.
      ProxyComponent = proxyClassCreator(React.Component, postConstructionAction);

      defineProxyMethods(ProxyComponent);

      var determinateResult = new ProxyComponent(props, context);

      // Cache the initial render result so we don't call the component function
      // a second time for the initial render.
      determinateResult[CACHED_RESULT] = result;
      return determinateResult;
    };
  }

  function get$$1() {
    return _ProxyFacade;
  }

  function getCurrent() {
    return CurrentComponent;
  }

  safeDefineProperty(_ProxyFacade, UNWRAP_PROXY, {
    configurable: false,
    writable: false,
    enumerable: false,
    value: getCurrent
  });

  safeDefineProperty(_ProxyFacade, PROXY_KEY, {
    configurable: false,
    writable: false,
    enumerable: false,
    value: proxyKey
  });

  safeDefineProperty(_ProxyFacade, 'toString', {
    configurable: true,
    writable: false,
    enumerable: false,
    value: function toString() {
      return String(CurrentComponent);
    }
  });

  function update(NextComponent) {
    if (typeof NextComponent !== 'function') {
      throw new Error('Expected a constructor.');
    }

    if (NextComponent === CurrentComponent) {
      return;
    }

    // Prevent proxy cycles
    var existingProxy = proxies.get(NextComponent);
    if (existingProxy) {
      return;
    }

    isFunctionalComponent = !isReactClass(NextComponent);

    proxies.set(NextComponent, proxy);

    proxyGeneration++;

    // Save the next constructor so we call it
    var PreviousComponent = CurrentComponent;
    CurrentComponent = NextComponent;

    // Try to infer displayName
    var displayName = getComponentDisplayName(CurrentComponent);

    safeDefineProperty(_ProxyFacade, 'displayName', {
      configurable: true,
      writable: false,
      enumerable: true,
      value: displayName
    });

    if (ProxyComponent) {
      safeDefineProperty(ProxyComponent, 'name', {
        value: displayName
      });
    }

    savedDescriptors = transferStaticProps(_ProxyFacade, savedDescriptors, PreviousComponent, NextComponent);

    if (isFunctionalComponent || !ProxyComponent) ; else {
      var classHotReplacement = function classHotReplacement() {
        checkLifeCycleMethods(ProxyComponent, NextComponent);
        Object.setPrototypeOf(ProxyComponent.prototype, NextComponent.prototype);
        defineProxyMethods(ProxyComponent, NextComponent.prototype);
        if (proxyGeneration > 1) {
          injectedMembers = mergeComponents(ProxyComponent, NextComponent, InitialComponent, lastInstance, injectedMembers);
        }
      };

      // Was constructed once
      if (instancesCount > 0) {
        classHotReplacement();
      } else {
        classUpdatePostponed = classHotReplacement;
      }
    }
  }

  update(InitialComponent);

  var dereference = function dereference() {
    proxies.delete(InitialComponent);
    proxies.delete(_ProxyFacade);
    proxies.delete(CurrentComponent);
  };

  proxy = { get: get$$1, update: update, dereference: dereference, getCurrent: function getCurrent() {
      return CurrentComponent;
    } };

  proxies.set(InitialComponent, proxy);
  proxies.set(_ProxyFacade, proxy);

  safeDefineProperty(proxy, UNWRAP_PROXY, {
    configurable: false,
    writable: false,
    enumerable: false,
    value: getCurrent
  });

  return proxy;
}

var proxiesByID = void 0;
var blackListedProxies = void 0;
var registeredComponents = void 0;
var idsByType = void 0;

var elementCount = 0;
var renderOptions = {};

var generateTypeId = function generateTypeId() {
  return 'auto-' + elementCount++;
};

var getIdByType = function getIdByType(type) {
  return idsByType.get(type);
};
var isProxyType = function isProxyType(type) {
  return type[PROXY_KEY];
};

var getProxyById = function getProxyById(id) {
  return proxiesByID[id];
};
var getProxyByType = function getProxyByType(type) {
  return getProxyById(getIdByType(type));
};

var registerComponent = function registerComponent(type) {
  return registeredComponents.set(type, 1);
};
var isRegisteredComponent = function isRegisteredComponent(type) {
  return registeredComponents.has(type);
};

var setStandInOptions = function setStandInOptions(options) {
  renderOptions = options;
};

var updateProxyById = function updateProxyById(id, type) {
  // Remember the ID.
  idsByType.set(type, id);

  if (!proxiesByID[id]) {
    proxiesByID[id] = createClassProxy(type, id, renderOptions);
  } else {
    proxiesByID[id].update(type);
  }
  return proxiesByID[id];
};

var createProxyForType = function createProxyForType(type) {
  return getProxyByType(type) || updateProxyById(generateTypeId(), type);
};

var isTypeBlacklisted = function isTypeBlacklisted(type) {
  return blackListedProxies.has(type);
};
var blacklistByType = function blacklistByType(type) {
  return blackListedProxies.set(type, true);
};

var resetProxies = function resetProxies() {
  proxiesByID = {};
  idsByType = new WeakMap();
  blackListedProxies = new WeakMap();
  registeredComponents = new WeakMap();
  resetClassProxies();
};

resetProxies();

var tune = {
  allowSFC: false
};

var preactAdapter = function preactAdapter(instance, resolveType) {
  var oldHandler = instance.options.vnode;

  Object.assign(configuration, tune);

  instance.options.vnode = function (vnode) {
    vnode.nodeName = resolveType(vnode.nodeName);
    if (oldHandler) {
      oldHandler(vnode);
    }
  };
};

/* eslint-disable no-use-before-define */

function _resolveType(type) {
  if (!isCompositeComponent(type) || isTypeBlacklisted(type) || isProxyType(type)) return type;

  var proxy = reactHotLoader.disableProxyCreation ? getProxyByType(type) : createProxyForType(type);

  return proxy ? proxy.get() : type;
}

var reactHotLoader = {
  register: function register(type, uniqueLocalName, fileName) {
    if (isCompositeComponent(type) && typeof uniqueLocalName === 'string' && uniqueLocalName && typeof fileName === 'string' && fileName) {
      var id = fileName + '#' + uniqueLocalName;
      var proxy = getProxyById(id);

      if (proxy && proxy.getCurrent() !== type) {
        // component got replaced. Need to reconcile
        increment();

        if (isTypeBlacklisted(type) || isTypeBlacklisted(proxy.getCurrent())) {
          logger.error('React-hot-loader: Cold component', uniqueLocalName, 'at', fileName, 'has been updated');
        }
      }

      if (configuration.onComponentRegister) {
        configuration.onComponentRegister(type, uniqueLocalName, fileName);
      }

      updateProxyById(id, type);
      registerComponent(type);
    }
  },
  reset: function reset() {
    resetProxies();
  },
  preact: function preact(instance) {
    preactAdapter(instance, _resolveType);
  },
  resolveType: function resolveType(type) {
    return _resolveType(type);
  },
  patch: function patch(React$$1) {
    if (!React$$1.createElement.isPatchedByReactHotLoader) {
      var originalCreateElement = React$$1.createElement;
      // Trick React into rendering a proxy so that
      // its state is preserved when the class changes.
      // This will update the proxy if it's for a known type.
      React$$1.createElement = function (type) {
        for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
          args[_key - 1] = arguments[_key];
        }

        return originalCreateElement.apply(undefined, [_resolveType(type)].concat(args));
      };
      React$$1.createElement.isPatchedByReactHotLoader = true;
    }

    if (!React$$1.createFactory.isPatchedByReactHotLoader) {
      // Patch React.createFactory to use patched createElement
      // because the original implementation uses the internal,
      // unpatched ReactElement.createElement
      React$$1.createFactory = function (type) {
        var factory = React$$1.createElement.bind(null, type);
        factory.type = type;
        return factory;
      };
      React$$1.createFactory.isPatchedByReactHotLoader = true;
    }

    if (!React$$1.Children.only.isPatchedByReactHotLoader) {
      var originalChildrenOnly = React$$1.Children.only;
      // Use the same trick as React.createElement
      React$$1.Children.only = function (children) {
        return originalChildrenOnly(_extends({}, children, { type: _resolveType(children.type) }));
      };
      React$$1.Children.only.isPatchedByReactHotLoader = true;
    }

    reactHotLoader.reset();
  },


  disableProxyCreation: false
};

/* eslint-disable no-underscore-dangle */

function pushStack(stack, node) {
  stack.type = node.type;
  stack.children = [];
  stack.instance = typeof node.type === 'function' ? node.stateNode : stack;

  if (!stack.instance) {
    stack.instance = {
      SFC_fake: stack.type,
      props: {},
      render: function render() {
        return stack.type(stack.instance.props);
      }
    };
  }
}

function hydrateFiberStack(node, stack) {
  pushStack(stack, node);
  if (node.child) {
    var child = node.child;

    do {
      var childStack = {};
      hydrateFiberStack(child, childStack);
      stack.children.push(childStack);
      child = child.sibling;
    } while (child);
  }
}

/* eslint-disable no-underscore-dangle */

function pushState(stack, type, instance) {
  stack.type = type;
  stack.children = [];
  stack.instance = instance || stack;

  if (typeof type === 'function' && type.isStatelessFunctionalProxy) {
    // In React 15 SFC is wrapped by component. We have to detect our proxies and change the way it works
    stack.instance = {
      SFC_fake: type,
      props: {},
      render: function render() {
        return type(stack.instance.props);
      }
    };
  }
}

function hydrateLegacyStack(node, stack) {
  if (node._currentElement) {
    pushState(stack, node._currentElement.type, node._instance || stack);
  }

  if (node._renderedComponent) {
    var childStack = {};
    hydrateLegacyStack(node._renderedComponent, childStack);
    stack.children.push(childStack);
  } else if (node._renderedChildren) {
    Object.keys(node._renderedChildren).forEach(function (key) {
      var childStack = {};
      hydrateLegacyStack(node._renderedChildren[key], childStack);
      stack.children.push(childStack);
    });
  }
}

/* eslint-disable no-underscore-dangle */

function getReactStack(instance) {
  var rootNode = getInternalInstance(instance);
  var stack = {};
  if (rootNode) {
    // React stack
    var isFiber = typeof rootNode.tag === 'number';
    if (isFiber) {
      hydrateFiberStack(rootNode, stack);
    } else {
      hydrateLegacyStack(rootNode, stack);
    }
  }

  return stack;
}

// some `empty` names, React can autoset display name to...
var UNDEFINED_NAMES = {
  Unknown: true,
  Component: true
};

var renderStack = [];

var stackReport = function stackReport() {
  var rev = renderStack.slice().reverse();
  logger.warn('in', rev[0].name, rev);
};

var emptyMap = new Map();
var stackContext = function stackContext() {
  return (renderStack[renderStack.length - 1] || {}).context || emptyMap;
};
var areNamesEqual = function areNamesEqual(a, b) {
  return a === b || UNDEFINED_NAMES[a] && UNDEFINED_NAMES[b];
};
var shouldUseRenderMethod = function shouldUseRenderMethod(fn) {
  return fn && (isReactClassInstance(fn) || fn.SFC_fake);
};

var isFunctional = function isFunctional(fn) {
  return typeof fn === 'function';
};
var isArray = function isArray(fn) {
  return Array.isArray(fn);
};
var asArray = function asArray(a) {
  return isArray(a) ? a : [a];
};
var getTypeOf = function getTypeOf(type) {
  if (isReactClass(type)) return 'ReactComponent';
  if (isFunctional(type)) return 'StatelessFunctional';
  return 'Fragment'; // ?
};

var filterNullArray = function filterNullArray(a) {
  if (!a) return [];
  return a.filter(function (x) {
    return !!x;
  });
};

var unflatten = function unflatten(a) {
  return a.reduce(function (acc, a) {
    if (Array.isArray(a)) {
      acc.push.apply(acc, unflatten(a));
    } else {
      acc.push(a);
    }
    return acc;
  }, []);
};

var getElementType = function getElementType(child) {
  return child.type[UNWRAP_PROXY] ? child.type[UNWRAP_PROXY]() : child.type;
};

var haveTextSimilarity = function haveTextSimilarity(a, b) {
  return (
    // equal or slight changed
    a === b || levenshtein.get(a, b) < a.length * 0.2
  );
};

var equalClasses = function equalClasses(a, b) {
  var prototypeA = a.prototype;
  var prototypeB = Object.getPrototypeOf(b.prototype);

  var hits = 0;
  var misses = 0;
  var comparisons = 0;
  Object.getOwnPropertyNames(prototypeA).forEach(function (key) {
    var descriptorA = Object.getOwnPropertyDescriptor(prototypeA, key);
    var valueA = descriptorA && (descriptorA.value || descriptorA.get || descriptorA.set);
    var descriptorB = Object.getOwnPropertyDescriptor(prototypeB, key);
    var valueB = descriptorB && (descriptorB.value || descriptorB.get || descriptorB.set);

    if (typeof valueA === 'function' && key !== 'constructor') {
      comparisons++;
      if (haveTextSimilarity(String(valueA), String(valueB))) {
        hits++;
      } else {
        misses++;
        if (key === 'render') {
          misses++;
        }
      }
    }
  });
  // allow to add or remove one function
  return hits > 0 && misses <= 1 || comparisons === 0;
};

var areSwappable = function areSwappable(a, b) {
  // both are registered components and have the same name
  if (getIdByType(b) && getIdByType(a) === getIdByType(b)) {
    return true;
  }
  if (getTypeOf(a) !== getTypeOf(b)) {
    return false;
  }
  if (isReactClass(a)) {
    return areNamesEqual(getComponentDisplayName(a), getComponentDisplayName(b)) && equalClasses(a, b);
  }

  if (isFunctional(a)) {
    var nameA = getComponentDisplayName(a);
    return areNamesEqual(nameA, getComponentDisplayName(b)) && nameA !== 'Component' || haveTextSimilarity(String(a), String(b));
  }
  return false;
};

var render = function render(component) {
  if (!component) {
    return [];
  }
  if (shouldUseRenderMethod(component)) {
    // not calling real render method to prevent call recursion.
    // stateless components does not have hotComponentRender
    return component.hotComponentRender ? component.hotComponentRender() : component.render();
  }
  if (isArray(component)) {
    return component.map(render);
  }
  if (component.children) {
    return component.children;
  }

  return [];
};

var NO_CHILDREN = { children: [] };
var mapChildren = function mapChildren(children, instances) {
  return {
    children: children.filter(function (c) {
      return c;
    }).map(function (child, index) {
      if ((typeof child === 'undefined' ? 'undefined' : _typeof(child)) !== 'object' || child.isMerged) {
        return child;
      }
      var instanceLine = instances[index] || {};
      var oldChildren = asArray(instanceLine.children || []);

      if (Array.isArray(child)) {
        return _extends({
          type: null
        }, mapChildren(child, oldChildren));
      }

      var newChildren = asArray(child.props && child.props.children || child.children || []);
      var nextChildren = child.type !== 'function' && oldChildren.length && mapChildren(newChildren, oldChildren);

      return _extends({
        nextProps: child.props,
        isMerged: true
      }, instanceLine, nextChildren || {}, {
        type: child.type
      });
    })
  };
};

var mergeInject = function mergeInject(a, b, instance) {
  if (a && !Array.isArray(a)) {
    return mergeInject([a], b);
  }
  if (b && !Array.isArray(b)) {
    return mergeInject(a, [b]);
  }

  if (!a || !b) {
    return NO_CHILDREN;
  }
  if (a.length === b.length) {
    return mapChildren(a, b);
  }

  // in some cases (no confidence here) B could contain A except null children
  // in some cases - could not.
  // this depends on React version and the way you build component.

  var nonNullA = filterNullArray(a);
  if (nonNullA.length === b.length) {
    return mapChildren(nonNullA, b);
  }

  var flatA = unflatten(nonNullA);
  var flatB = unflatten(b);
  if (flatA.length === flatB.length) {
    return mapChildren(flatA, flatB);
  }
  if (flatB.length === 0 && flatA.length === 1 && _typeof(flatA[0]) !== 'object') ; else {
    logger.warn('React-hot-loader: unable to merge ', a, 'and children of ', instance);
    stackReport();
  }
  return NO_CHILDREN;
};

var transformFlowNode = function transformFlowNode(flow) {
  return flow.reduce(function (acc, node) {
    if (node && isFragmentNode(node)) {
      if (node.props && node.props.children) {
        return [].concat(acc, filterNullArray(asArray(node.props.children)));
      }
      if (node.children) {
        return [].concat(acc, filterNullArray(asArray(node.children)));
      }
    }
    return [].concat(acc, [node]);
  }, []);
};

var scheduledUpdates = [];
var scheduledUpdate = 0;

var flushScheduledUpdates = function flushScheduledUpdates() {
  var instances = scheduledUpdates;
  scheduledUpdates = [];
  scheduledUpdate = 0;
  instances.forEach(function (instance) {
    return instance[PROXY_IS_MOUNTED] && updateInstance(instance);
  });
};

var unscheduleUpdate = function unscheduleUpdate(instance) {
  scheduledUpdates = scheduledUpdates.filter(function (inst) {
    return inst !== instance;
  });
};

var scheduleInstanceUpdate = function scheduleInstanceUpdate(instance) {
  scheduledUpdates.push(instance);
  if (!scheduledUpdate) {
    scheduledUpdate = setTimeout(flushScheduledUpdates);
  }
};

var hotReplacementRender = function hotReplacementRender(instance, stack) {
  if (isReactClassInstance(instance)) {
    var type = getElementType(stack);

    renderStack.push({
      name: getComponentDisplayName(type),
      type: type,
      props: stack.instance.props,
      context: stackContext()
    });
  }
  var flow = transformFlowNode(filterNullArray(asArray(render(instance))));

  var children = stack.children;


  flow.forEach(function (child, index) {
    var stackChild = children[index];
    var next = function next(instance) {
      // copy over props as long new component may be hidden inside them
      // child does not have all props, as long some of them can be calculated on componentMount.
      var realProps = instance.props;
      var nextProps = _extends({}, realProps, child.nextProps || {}, child.props || {});

      if (isReactClassInstance(instance) && instance.componentWillUpdate) {
        // Force-refresh component (bypass redux renderedComponent)
        instance.componentWillUpdate(_extends({}, realProps), instance.state);
      }
      instance.props = nextProps;
      hotReplacementRender(instance, stackChild);
      instance.props = realProps;
    };

    // text node
    if ((typeof child === 'undefined' ? 'undefined' : _typeof(child)) !== 'object' || !stackChild || !stackChild.instance) {
      if (stackChild && stackChild.children && stackChild.children.length) {
        logger.error('React-hot-loader: reconciliation failed', 'could not dive into [', child, '] while some elements are still present in the tree.');
        stackReport();
      }
      return;
    }

    if (_typeof(child.type) !== _typeof(stackChild.type)) {
      // Portals could generate undefined !== null
      if (child.type && stackChild.type) {
        logger.warn('React-hot-loader: got ', child.type, 'instead of', stackChild.type);
        stackReport();
      }
      return;
    }

    // React context
    if (isContextConsumer(child)) {
      try {
        next({
          children: (child.props ? child.props.children : child.children[0])(stackContext().get(child.type) || child.type[CONTEXT_CURRENT_VALUE])
        });
      } catch (e) {
        // do nothing, yet
      }
    } else if (typeof child.type !== 'function') {
      // React
      var childName = child.type ? getComponentDisplayName(child.type) : 'empty';
      var extraContext = stackContext();

      if (isContextProvider(child)) {
        extraContext = new Map(extraContext);
        extraContext.set(getContextProvider(child.type), _extends({}, child.nextProps || {}, child.props || {}).value);
        childName = 'ContextProvider';
      }

      renderStack.push({
        name: childName,
        type: child.type,
        props: stack.instance.props,
        context: extraContext
      });

      next(
      // move types from render to the instances of hydrated tree
      mergeInject(transformFlowNode(asArray(child.props ? child.props.children : child.children)), stackChild.instance.children, stackChild.instance));
      renderStack.pop();
    } else {
      if (child.type === stackChild.type) {
        next(stackChild.instance);
      } else {
        // unwrap proxy
        var childType = getElementType(child);
        if (!stackChild.type[PROXY_KEY]) {
          if (isTypeBlacklisted(stackChild.type)) {
            logger.warn('React-hot-loader: cold element got updated ', stackChild.type);
            return;
          }
          /* eslint-disable no-console */
          logger.error('React-hot-loader: fatal error caused by ', stackChild.type, ' - no instrumentation found. ', 'Please require react-hot-loader before React. More in troubleshooting.');
          stackReport();
          throw new Error('React-hot-loader: wrong configuration');
        }

        if (isRegisteredComponent(childType) || isRegisteredComponent(stackChild.type)) ; else if (areSwappable(childType, stackChild.type)) {
          // they are both registered, or have equal code/displayname/signature

          // update proxy using internal PROXY_KEY
          updateProxyById(stackChild.type[PROXY_KEY], childType);

          next(stackChild.instance);
        } else {
          logger.warn('React-hot-loader: a ' + getComponentDisplayName(childType) + ' was found where a ' + getComponentDisplayName(stackChild) + ' was expected.\n          ' + childType);
          stackReport();
        }
      }

      scheduleInstanceUpdate(stackChild.instance);
    }
  });

  if (isReactClassInstance(instance)) {
    renderStack.pop();
  }
};

var hotComponentCompare = function hotComponentCompare(oldType, newType) {
  if (oldType === newType) {
    return true;
  }

  if (areSwappable(newType, oldType)) {
    getProxyByType(newType[UNWRAP_PROXY]()).dereference();
    updateProxyById(oldType[PROXY_KEY], newType[UNWRAP_PROXY]());
    updateProxyById(newType[PROXY_KEY], oldType[UNWRAP_PROXY]());
    return true;
  }

  return false;
};

var hotReplacementRender$1 = (function (instance, stack) {
  try {
    // disable reconciler to prevent upcoming components from proxying.
    reactHotLoader.disableProxyCreation = true;
    renderStack = [];
    hotReplacementRender(instance, stack);
  } catch (e) {
    logger.warn('React-hot-loader: reconcilation failed due to error', e);
  } finally {
    reactHotLoader.disableProxyCreation = false;
  }
});

var reconcileHotReplacement = function reconcileHotReplacement(ReactInstance) {
  return hotReplacementRender$1(ReactInstance, getReactStack(ReactInstance));
};

var RENDERED_GENERATION = 'REACT_HOT_LOADER_RENDERED_GENERATION';

var renderReconciler = function renderReconciler(target, force) {
  // we are not inside parent reconcilation
  var currentGeneration = get$1();
  var componentGeneration = target[RENDERED_GENERATION];

  target[RENDERED_GENERATION] = currentGeneration;

  if (!reactHotLoader.disableProxyCreation) {
    if ((componentGeneration || force) && componentGeneration !== currentGeneration) {
      reconcileHotReplacement(target);
      return true;
    }
  }
  return false;
};

function asyncReconciledRender(target) {
  renderReconciler(target, false);
}

function proxyWrapper(element) {
  // post wrap on post render
  if (!reactHotLoader.disableProxyCreation) {
    unscheduleUpdate(this);
  }

  if (!element) {
    return element;
  }
  if (Array.isArray(element)) {
    return element.map(proxyWrapper);
  }
  if (typeof element.type === 'function') {
    var proxy = getProxyByType(element.type);
    if (proxy) {
      return _extends({}, element, {
        type: proxy.get()
      });
    }
  }
  return element;
}

setStandInOptions({
  componentWillRender: asyncReconciledRender,
  componentDidRender: proxyWrapper,
  componentDidUpdate: flushScheduledUpdates
});

var AppContainer = function (_React$Component) {
  inherits(AppContainer, _React$Component);

  function AppContainer() {
    var _temp, _this, _ret;

    classCallCheck(this, AppContainer);

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

    return _ret = (_temp = (_this = possibleConstructorReturn(this, _React$Component.call.apply(_React$Component, [this].concat(args))), _this), _this.state = {
      error: null,
      // eslint-disable-next-line react/no-unused-state
      generation: 0
    }, _temp), possibleConstructorReturn(_this, _ret);
  }

  AppContainer.getDerivedStateFromProps = function getDerivedStateFromProps(nextProps, prevState) {
    if (prevState.generation !== get$1()) {
      // Hot reload is happening.
      return {
        error: null,
        generation: get$1()
      };
    }
    return null;
  };

  AppContainer.prototype.shouldComponentUpdate = function shouldComponentUpdate(prevProps, prevState) {
    // Don't update the component if the state had an error and still has one.
    // This allows to break an infinite loop of error -> render -> error -> render
    // https://github.com/gaearon/react-hot-loader/issues/696
    if (prevState.error && this.state.error) {
      return false;
    }

    return true;
  };

  AppContainer.prototype.componentDidCatch = function componentDidCatch(error) {
    logger.error(error);
    this.setState({ error: error });
  };

  AppContainer.prototype.render = function render() {
    var error = this.state.error;


    if (this.props.errorReporter && error) {
      return React__default.createElement(this.props.errorReporter, { error: error });
    }

    return React__default.Children.only(this.props.children);
  };

  return AppContainer;
}(React__default.Component);

AppContainer.propTypes = {
  children: function children(props) {
    if (React__default.Children.count(props.children) !== 1) {
      return new Error('Invalid prop "children" supplied to AppContainer. ' + 'Expected a single React element with your app’s root component, e.g. <App />.');
    }

    return undefined;
  },

  errorReporter: PropTypes.oneOfType([PropTypes.node, PropTypes.func])

  //  trying first react-lifecycles-compat.polyfill, then trying react-lifecycles-compat, which could be .default
};var realPolyfill = defaultPolyfill.polyfill || defaultPolyfill__default;
realPolyfill(AppContainer);

var openedModules = {};

var hotModules = {};

var createHotModule = function createHotModule() {
  return { instances: [], updateTimeout: 0 };
};

var hotModule = function hotModule(moduleId) {
  if (!hotModules[moduleId]) {
    hotModules[moduleId] = createHotModule();
  }
  return hotModules[moduleId];
};

var isOpened = function isOpened(sourceModule) {
  return sourceModule && !!openedModules[sourceModule.id];
};

var enter = function enter(sourceModule) {
  if (sourceModule && sourceModule.id) {
    openedModules[sourceModule.id] = true;
  } else {
    logger.warn('React-hot-loader: no `module` variable found. Do you shadow system variable?');
  }
};

var leave = function leave(sourceModule) {
  if (sourceModule && sourceModule.id) {
    delete openedModules[sourceModule.id];
  }
};

/* eslint-disable camelcase, no-undef */
var requireIndirect = typeof __webpack_require__ !== 'undefined' ? __webpack_require__ : require;
/* eslint-enable */

var createHoc = function createHoc(SourceComponent, TargetComponent) {
  hoistNonReactStatic(TargetComponent, SourceComponent);
  TargetComponent.displayName = 'HotExported' + getComponentDisplayName(SourceComponent);
  return TargetComponent;
};

var makeHotExport = function makeHotExport(sourceModule) {
  var updateInstances = function updateInstances() {
    var module = hotModule(sourceModule.id);
    clearTimeout(module.updateTimeout);
    module.updateTimeout = setTimeout(function () {
      try {
        requireIndirect(sourceModule.id);
      } catch (e) {
        // just swallow
      }
      module.instances.forEach(function (inst) {
        return inst.forceUpdate();
      });
    });
  };

  if (sourceModule.hot) {
    // Mark as self-accepted for Webpack
    // Update instances for Parcel
    sourceModule.hot.accept(updateInstances);

    // Webpack way
    if (sourceModule.hot.addStatusHandler) {
      if (sourceModule.hot.status() === 'idle') {
        sourceModule.hot.addStatusHandler(function (status) {
          if (status === 'apply') {
            updateInstances();
          }
        });
      }
    }
  }
};

var hot = function hot(sourceModule) {
  if (!sourceModule || !sourceModule.id) {
    // this is fatal
    throw new Error('React-hot-loader: `hot` could not find the `id` property in the `module` you have provided');
  }
  var moduleId = sourceModule.id;
  var module = hotModule(moduleId);
  makeHotExport(sourceModule);

  // TODO: Ensure that all exports from this file are react components.

  return function (WrappedComponent) {
    // register proxy for wrapped component
    reactHotLoader.register(WrappedComponent, getComponentDisplayName(WrappedComponent), 'RHL' + moduleId);

    return createHoc(WrappedComponent, function (_Component) {
      inherits(ExportedComponent, _Component);

      function ExportedComponent() {
        classCallCheck(this, ExportedComponent);
        return possibleConstructorReturn(this, _Component.apply(this, arguments));
      }

      ExportedComponent.prototype.componentDidMount = function componentDidMount() {
        module.instances.push(this);
      };

      ExportedComponent.prototype.componentWillUnmount = function componentWillUnmount() {
        var _this2 = this;

        if (isOpened(sourceModule)) {
          var componentName = getComponentDisplayName(WrappedComponent);
          logger.error('React-hot-loader: Detected AppContainer unmount on module \'' + moduleId + '\' update.\n' + ('Did you use "hot(' + componentName + ')" and "ReactDOM.render()" in the same file?\n') + ('"hot(' + componentName + ')" shall only be used as export.\n') + 'Please refer to "Getting Started" (https://github.com/gaearon/react-hot-loader/).');
        }
        module.instances = module.instances.filter(function (a) {
          return a !== _this2;
        });
      };

      ExportedComponent.prototype.render = function render() {
        return React__default.createElement(
          AppContainer,
          null,
          React__default.createElement(WrappedComponent, this.props)
        );
      };

      return ExportedComponent;
    }(React.Component));
  };
};

var getProxyOrType = function getProxyOrType(type) {
  var proxy = getProxyByType(type);
  return proxy ? proxy.get() : type;
};

var areComponentsEqual = function areComponentsEqual(a, b) {
  return getProxyOrType(a) === getProxyOrType(b);
};

var compareOrSwap = function compareOrSwap(oldType, newType) {
  return hotComponentCompare(oldType, newType);
};

var cold = function cold(type) {
  blacklistByType(type);
  return type;
};

var setConfig = function setConfig(config) {
  return Object.assign(configuration, config);
};

reactHotLoader.patch(React__default);

exports.default = reactHotLoader;
exports.AppContainer = AppContainer;
exports.hot = hot;
exports.enterModule = enter;
exports.leaveModule = leave;
exports.areComponentsEqual = areComponentsEqual;
exports.compareOrSwap = compareOrSwap;
exports.cold = cold;
exports.setConfig = setConfig;