react-test-renderer/cjs/react-test-renderer.development.js

React package for snapshot testing.

/** @license React v16.13.1
 * react-test-renderer.development.js
 *
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

'use strict';



if (process.env.NODE_ENV !== "production") {
  (function() {
'use strict';

var _assign = require('object-assign');
var Scheduler = require('scheduler/unstable_mock');
var React = require('react');
var checkPropTypes = require('prop-types/checkPropTypes');
var Scheduler$1 = require('scheduler');
var tracing = require('scheduler/tracing');

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

function _createClass(Constructor, protoProps, staticProps) {
  if (protoProps) _defineProperties(Constructor.prototype, protoProps);
  if (staticProps) _defineProperties(Constructor, staticProps);
  return Constructor;
}

function _objectWithoutPropertiesLoose(source, excluded) {
  if (source == null) return {};
  var target = {};
  var sourceKeys = Object.keys(source);
  var key, i;

  for (i = 0; i < sourceKeys.length; i++) {
    key = sourceKeys[i];
    if (excluded.indexOf(key) >= 0) continue;
    target[key] = source[key];
  }

  return target;
}

var ReactSharedInternals = React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED; // Prevent newer renderers from RTE when used with older react package versions.
// Current owner and dispatcher used to share the same ref,
// but PR #14548 split them out to better support the react-debug-tools package.

if (!ReactSharedInternals.hasOwnProperty('ReactCurrentDispatcher')) {
  ReactSharedInternals.ReactCurrentDispatcher = {
    current: null
  };
}

if (!ReactSharedInternals.hasOwnProperty('ReactCurrentBatchConfig')) {
  ReactSharedInternals.ReactCurrentBatchConfig = {
    suspense: null
  };
}

// 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) {
  {
    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) {
  {
    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 hasExistingStack = args.length > 0 && typeof args[args.length - 1] === 'string' && args[args.length - 1].indexOf('\n    in') === 0;

    if (!hasExistingStack) {
      var ReactDebugCurrentFrame = ReactSharedInternals.ReactDebugCurrentFrame;
      var stack = ReactDebugCurrentFrame.getStackAddendum();

      if (stack !== '') {
        format += '%s';
        args = args.concat([stack]);
      }
    }

    var argsWithFormat = args.map(function (item) {
      return '' + 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);

    try {
      // --- Welcome to debugging React ---
      // This error was thrown as a convenience so that you can use this stack
      // to find the callsite that caused this warning to fire.
      var argIndex = 0;
      var message = 'Warning: ' + format.replace(/%s/g, function () {
        return args[argIndex++];
      });
      throw new Error(message);
    } catch (x) {}
  }
}

var 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 FundamentalComponent = 20;
var ScopeComponent = 21;
var Block = 22;

/**
 * `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._reactInternalFiber;
}
function set(key, value) {
  key._reactInternalFiber = value;
}

// The Symbol used to tag the ReactElement-like types. If there is no native Symbol
// nor polyfill, then a plain number is used for performance.
var hasSymbol = typeof Symbol === 'function' && Symbol.for;
var REACT_ELEMENT_TYPE = hasSymbol ? Symbol.for('react.element') : 0xeac7;
var REACT_PORTAL_TYPE = hasSymbol ? Symbol.for('react.portal') : 0xeaca;
var REACT_FRAGMENT_TYPE = hasSymbol ? Symbol.for('react.fragment') : 0xeacb;
var REACT_STRICT_MODE_TYPE = hasSymbol ? Symbol.for('react.strict_mode') : 0xeacc;
var REACT_PROFILER_TYPE = hasSymbol ? Symbol.for('react.profiler') : 0xead2;
var REACT_PROVIDER_TYPE = hasSymbol ? Symbol.for('react.provider') : 0xeacd;
var REACT_CONTEXT_TYPE = hasSymbol ? Symbol.for('react.context') : 0xeace; // TODO: We don't use AsyncMode or ConcurrentMode anymore. They were temporary
var REACT_CONCURRENT_MODE_TYPE = hasSymbol ? Symbol.for('react.concurrent_mode') : 0xeacf;
var REACT_FORWARD_REF_TYPE = hasSymbol ? Symbol.for('react.forward_ref') : 0xead0;
var REACT_SUSPENSE_TYPE = hasSymbol ? Symbol.for('react.suspense') : 0xead1;
var REACT_SUSPENSE_LIST_TYPE = hasSymbol ? Symbol.for('react.suspense_list') : 0xead8;
var REACT_MEMO_TYPE = hasSymbol ? Symbol.for('react.memo') : 0xead3;
var REACT_LAZY_TYPE = hasSymbol ? Symbol.for('react.lazy') : 0xead4;
var REACT_BLOCK_TYPE = hasSymbol ? Symbol.for('react.block') : 0xead9;
var MAYBE_ITERATOR_SYMBOL = typeof Symbol === 'function' && Symbol.iterator;
var FAUX_ITERATOR_SYMBOL = '@@iterator';
function getIteratorFn(maybeIterable) {
  if (maybeIterable === null || typeof maybeIterable !== 'object') {
    return null;
  }

  var maybeIterator = MAYBE_ITERATOR_SYMBOL && maybeIterable[MAYBE_ITERATOR_SYMBOL] || maybeIterable[FAUX_ITERATOR_SYMBOL];

  if (typeof maybeIterator === 'function') {
    return maybeIterator;
  }

  return null;
}

var Uninitialized = -1;
var Pending = 0;
var Resolved = 1;
var Rejected = 2;
function refineResolvedLazyComponent(lazyComponent) {
  return lazyComponent._status === Resolved ? lazyComponent._result : null;
}
function initializeLazyComponentType(lazyComponent) {
  if (lazyComponent._status === Uninitialized) {
    lazyComponent._status = Pending;
    var ctor = lazyComponent._ctor;
    var thenable = ctor();
    lazyComponent._result = thenable;
    thenable.then(function (moduleObject) {
      if (lazyComponent._status === Pending) {
        var defaultExport = moduleObject.default;

        {
          if (defaultExport === undefined) {
            error('lazy: Expected the result of a dynamic import() call. ' + 'Instead received: %s\n\nYour code should look like: \n  ' + "const MyComponent = lazy(() => import('./MyComponent'))", moduleObject);
          }
        }

        lazyComponent._status = Resolved;
        lazyComponent._result = defaultExport;
      }
    }, function (error) {
      if (lazyComponent._status === Pending) {
        lazyComponent._status = Rejected;
        lazyComponent._result = error;
      }
    });
  }
}

function getWrappedName(outerType, innerType, wrapperName) {
  var functionName = innerType.displayName || innerType.name || '';
  return outerType.displayName || (functionName !== '' ? wrapperName + "(" + functionName + ")" : wrapperName);
}

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

  {
    if (typeof type.tag === 'number') {
      error('Received an unexpected object in getComponentName(). ' + 'This is likely a bug in React. Please file an issue.');
    }
  }

  if (typeof type === 'function') {
    return type.displayName || type.name || null;
  }

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

  switch (type) {
    case REACT_FRAGMENT_TYPE:
      return 'Fragment';

    case REACT_PORTAL_TYPE:
      return 'Portal';

    case REACT_PROFILER_TYPE:
      return "Profiler";

    case REACT_STRICT_MODE_TYPE:
      return 'StrictMode';

    case REACT_SUSPENSE_TYPE:
      return 'Suspense';

    case REACT_SUSPENSE_LIST_TYPE:
      return 'SuspenseList';
  }

  if (typeof type === 'object') {
    switch (type.$$typeof) {
      case REACT_CONTEXT_TYPE:
        return 'Context.Consumer';

      case REACT_PROVIDER_TYPE:
        return 'Context.Provider';

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

      case REACT_MEMO_TYPE:
        return getComponentName(type.type);

      case REACT_BLOCK_TYPE:
        return getComponentName(type.render);

      case REACT_LAZY_TYPE:
        {
          var thenable = type;
          var resolvedThenable = refineResolvedLazyComponent(thenable);

          if (resolvedThenable) {
            return getComponentName(resolvedThenable);
          }

          break;
        }
    }
  }

  return null;
}

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

var Placement =
/*             */
2;
var Update =
/*                */
4;
var PlacementAndUpdate =
/*    */
6;
var Deletion =
/*              */
8;
var ContentReset =
/*          */
16;
var Callback =
/*              */
32;
var DidCapture =
/*            */
64;
var Ref =
/*                   */
128;
var Snapshot =
/*              */
256;
var Passive =
/*               */
512;
var Hydrating =
/*             */
1024;
var HydratingAndUpdate =
/*    */
1028; // Passive & Update & Callback & Ref & Snapshot

var LifecycleEffectMask =
/*   */
932; // Union of all host effects

var HostEffectMask =
/*        */
2047;
var Incomplete =
/*            */
2048;
var ShouldCapture =
/*         */
4096;

var enableProfilerTimer = true;
var enableFundamentalAPI = false;
var warnAboutStringRefs = false;

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.effectTag & (Placement | Hydrating)) !== NoEffect) {
        // 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 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.', getComponentName(ownerFiber.type) || '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 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 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 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 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 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 Error( "Unable to find node on an unmounted component." );
    }
  }

  if (a.stateNode.current === a) {
    // We've determined that A is the current branch.
    return fiber;
  } // Otherwise B has to be current branch.


  return alternate;
}
function findCurrentHostFiber(parent) {
  var currentParent = findCurrentFiberUsingSlowPath(parent);

  if (!currentParent) {
    return null;
  } // Next we'll drill down this component to find the first HostComponent/Text.


  var node = currentParent;

  while (true) {
    if (node.tag === HostComponent || node.tag === HostText) {
      return node;
    } else if (node.child) {
      node.child.return = node;
      node = node.child;
      continue;
    }

    if (node === currentParent) {
      return null;
    }

    while (!node.sibling) {
      if (!node.return || node.return === currentParent) {
        return null;
      }

      node = node.return;
    }

    node.sibling.return = node.return;
    node = node.sibling;
  } // Flow needs the return null here, but ESLint complains about it.
  // eslint-disable-next-line no-unreachable


  return null;
}

// can re-export everything from this module.

function shim() {
  {
    {
      throw Error( "The current renderer does not support hydration. This error is likely caused by a bug in React. Please file an issue." );
    }
  }
} // Hydration (when unsupported)
var isSuspenseInstancePending = shim;
var isSuspenseInstanceFallback = shim;
var hydrateTextInstance = shim;

var NO_CONTEXT = {};
var UPDATE_SIGNAL = {};
var nodeToInstanceMap = new WeakMap();

{
  Object.freeze(NO_CONTEXT);
  Object.freeze(UPDATE_SIGNAL);
}

function getPublicInstance(inst) {
  switch (inst.tag) {
    case 'INSTANCE':
      var createNodeMock = inst.rootContainerInstance.createNodeMock;
      var mockNode = createNodeMock({
        type: inst.type,
        props: inst.props
      });

      if (typeof mockNode === 'object' && mockNode !== null) {
        nodeToInstanceMap.set(mockNode, inst);
      }

      return mockNode;

    default:
      return inst;
  }
}
function appendChild(parentInstance, child) {
  {
    if (!Array.isArray(parentInstance.children)) {
      error('An invalid container has been provided. ' + 'This may indicate that another renderer is being used in addition to the test renderer. ' + '(For example, ReactDOM.createPortal inside of a ReactTestRenderer tree.) ' + 'This is not supported.');
    }
  }

  var index = parentInstance.children.indexOf(child);

  if (index !== -1) {
    parentInstance.children.splice(index, 1);
  }

  parentInstance.children.push(child);
}
function insertBefore(parentInstance, child, beforeChild) {
  var index = parentInstance.children.indexOf(child);

  if (index !== -1) {
    parentInstance.children.splice(index, 1);
  }

  var beforeIndex = parentInstance.children.indexOf(beforeChild);
  parentInstance.children.splice(beforeIndex, 0, child);
}
function removeChild(parentInstance, child) {
  var index = parentInstance.children.indexOf(child);
  parentInstance.children.splice(index, 1);
}
function getRootHostContext(rootContainerInstance) {
  return NO_CONTEXT;
}
function getChildHostContext(parentHostContext, type, rootContainerInstance) {
  return NO_CONTEXT;
}
function prepareForCommit(containerInfo) {// noop
}
function resetAfterCommit(containerInfo) {// noop
}
function createInstance(type, props, rootContainerInstance, hostContext, internalInstanceHandle) {
  var propsToUse = props;

  return {
    type: type,
    props: propsToUse,
    isHidden: false,
    children: [],
    internalInstanceHandle: internalInstanceHandle,
    rootContainerInstance: rootContainerInstance,
    tag: 'INSTANCE'
  };
}
function appendInitialChild(parentInstance, child) {
  var index = parentInstance.children.indexOf(child);

  if (index !== -1) {
    parentInstance.children.splice(index, 1);
  }

  parentInstance.children.push(child);
}
function prepareUpdate(testElement, type, oldProps, newProps, rootContainerInstance, hostContext) {
  return UPDATE_SIGNAL;
}
function shouldSetTextContent(type, props) {
  return false;
}
function shouldDeprioritizeSubtree(type, props) {
  return false;
}
function createTextInstance(text, rootContainerInstance, hostContext, internalInstanceHandle) {

  return {
    text: text,
    isHidden: false,
    tag: 'TEXT'
  };
}
var scheduleTimeout = setTimeout;
var cancelTimeout = clearTimeout;
var noTimeout = -1; // -------------------
function commitUpdate(instance, updatePayload, type, oldProps, newProps, internalInstanceHandle) {
  instance.type = type;
  instance.props = newProps;
}
function commitTextUpdate(textInstance, oldText, newText) {
  textInstance.text = newText;
}
function resetTextContent(testElement) {// noop
}
var appendChildToContainer = appendChild;
var insertInContainerBefore = insertBefore;
var removeChildFromContainer = removeChild;
function hideInstance(instance) {
  instance.isHidden = true;
}
function hideTextInstance(textInstance) {
  textInstance.isHidden = true;
}
function unhideInstance(instance, props) {
  instance.isHidden = false;
}
function unhideTextInstance(textInstance, text) {
  textInstance.isHidden = false;
}

var BEFORE_SLASH_RE = /^(.*)[\\\/]/;
function describeComponentFrame (name, source, ownerName) {
  var sourceInfo = '';

  if (source) {
    var path = source.fileName;
    var fileName = path.replace(BEFORE_SLASH_RE, '');

    {
      // In DEV, include code for a common special case:
      // prefer "folder/index.js" instead of just "index.js".
      if (/^index\./.test(fileName)) {
        var match = path.match(BEFORE_SLASH_RE);

        if (match) {
          var pathBeforeSlash = match[1];

          if (pathBeforeSlash) {
            var folderName = pathBeforeSlash.replace(BEFORE_SLASH_RE, '');
            fileName = folderName + '/' + fileName;
          }
        }
      }
    }

    sourceInfo = ' (at ' + fileName + ':' + source.lineNumber + ')';
  } else if (ownerName) {
    sourceInfo = ' (created by ' + ownerName + ')';
  }

  return '\n    in ' + (name || 'Unknown') + sourceInfo;
}

var ReactDebugCurrentFrame = ReactSharedInternals.ReactDebugCurrentFrame;

function describeFiber(fiber) {
  switch (fiber.tag) {
    case HostRoot:
    case HostPortal:
    case HostText:
    case Fragment:
    case ContextProvider:
    case ContextConsumer:
      return '';

    default:
      var owner = fiber._debugOwner;
      var source = fiber._debugSource;
      var name = getComponentName(fiber.type);
      var ownerName = null;

      if (owner) {
        ownerName = getComponentName(owner.type);
      }

      return describeComponentFrame(name, source, ownerName);
  }
}

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

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

  return info;
}
var current = null;
var isRendering = false;
function getCurrentFiberOwnerNameInDevOrNull() {
  {
    if (current === null) {
      return null;
    }

    var owner = current._debugOwner;

    if (owner !== null && typeof owner !== 'undefined') {
      return getComponentName(owner.type);
    }
  }

  return null;
}
function getCurrentFiberStackInDev() {
  {
    if (current === null) {
      return '';
    } // Safe because if current fiber exists, we are reconciling,
    // and it is guaranteed to be the work-in-progress version.


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

// Prefix measurements so that it's possible to filter them.
// Longer prefixes are hard to read in DevTools.
var reactEmoji = "\u269B";
var warningEmoji = "\u26D4";
var supportsUserTiming = typeof performance !== 'undefined' && typeof performance.mark === 'function' && typeof performance.clearMarks === 'function' && typeof performance.measure === 'function' && typeof performance.clearMeasures === 'function'; // Keep track of current fiber so that we know the path to unwind on pause.
// TODO: this looks the same as nextUnitOfWork in scheduler. Can we unify them?

var currentFiber = null; // If we're in the middle of user code, which fiber and method is it?
// Reusing `currentFiber` would be confusing for this because user code fiber
// can change during commit phase too, but we don't need to unwind it (since
// lifecycles in the commit phase don't resemble a tree).

var currentPhase = null;
var currentPhaseFiber = null; // Did lifecycle hook schedule an update? This is often a performance problem,
// so we will keep track of it, and include it in the report.
// Track commits caused by cascading updates.

var isCommitting = false;
var hasScheduledUpdateInCurrentCommit = false;
var hasScheduledUpdateInCurrentPhase = false;
var commitCountInCurrentWorkLoop = 0;
var effectCountInCurrentCommit = 0;
// to avoid stretch the commit phase with measurement overhead.

var labelsInCurrentCommit = new Set();

var formatMarkName = function (markName) {
  return reactEmoji + " " + markName;
};

var formatLabel = function (label, warning) {
  var prefix = warning ? warningEmoji + " " : reactEmoji + " ";
  var suffix = warning ? " Warning: " + warning : '';
  return "" + prefix + label + suffix;
};

var beginMark = function (markName) {
  performance.mark(formatMarkName(markName));
};

var clearMark = function (markName) {
  performance.clearMarks(formatMarkName(markName));
};

var endMark = function (label, markName, warning) {
  var formattedMarkName = formatMarkName(markName);
  var formattedLabel = formatLabel(label, warning);

  try {
    performance.measure(formattedLabel, formattedMarkName);
  } catch (err) {} // If previous mark was missing for some reason, this will throw.
  // This could only happen if React crashed in an unexpected place earlier.
  // Don't pile on with more errors.
  // Clear marks immediately to avoid growing buffer.


  performance.clearMarks(formattedMarkName);
  performance.clearMeasures(formattedLabel);
};

var getFiberMarkName = function (label, debugID) {
  return label + " (#" + debugID + ")";
};

var getFiberLabel = function (componentName, isMounted, phase) {
  if (phase === null) {
    // These are composite component total time measurements.
    return componentName + " [" + (isMounted ? 'update' : 'mount') + "]";
  } else {
    // Composite component methods.
    return componentName + "." + phase;
  }
};

var beginFiberMark = function (fiber, phase) {
  var componentName = getComponentName(fiber.type) || 'Unknown';
  var debugID = fiber._debugID;
  var isMounted = fiber.alternate !== null;
  var label = getFiberLabel(componentName, isMounted, phase);

  if (isCommitting && labelsInCurrentCommit.has(label)) {
    // During the commit phase, we don't show duplicate labels because
    // there is a fixed overhead for every measurement, and we don't
    // want to stretch the commit phase beyond necessary.
    return false;
  }

  labelsInCurrentCommit.add(label);
  var markName = getFiberMarkName(label, debugID);
  beginMark(markName);
  return true;
};

var clearFiberMark = function (fiber, phase) {
  var componentName = getComponentName(fiber.type) || 'Unknown';
  var debugID = fiber._debugID;
  var isMounted = fiber.alternate !== null;
  var label = getFiberLabel(componentName, isMounted, phase);
  var markName = getFiberMarkName(label, debugID);
  clearMark(markName);
};

var endFiberMark = function (fiber, phase, warning) {
  var componentName = getComponentName(fiber.type) || 'Unknown';
  var debugID = fiber._debugID;
  var isMounted = fiber.alternate !== null;
  var label = getFiberLabel(componentName, isMounted, phase);
  var markName = getFiberMarkName(label, debugID);
  endMark(label, markName, warning);
};

var shouldIgnoreFiber = function (fiber) {
  // Host components should be skipped in the timeline.
  // We could check typeof fiber.type, but does this work with RN?
  switch (fiber.tag) {
    case HostRoot:
    case HostComponent:
    case HostText:
    case HostPortal:
    case Fragment:
    case ContextProvider:
    case ContextConsumer:
    case Mode:
      return true;

    default:
      return false;
  }
};

var clearPendingPhaseMeasurement = function () {
  if (currentPhase !== null && currentPhaseFiber !== null) {
    clearFiberMark(currentPhaseFiber, currentPhase);
  }

  currentPhaseFiber = null;
  currentPhase = null;
  hasScheduledUpdateInCurrentPhase = false;
};

var pauseTimers = function () {
  // Stops all currently active measurements so that they can be resumed
  // if we continue in a later deferred loop from the same unit of work.
  var fiber = currentFiber;

  while (fiber) {
    if (fiber._debugIsCurrentlyTiming) {
      endFiberMark(fiber, null, null);
    }

    fiber = fiber.return;
  }
};

var resumeTimersRecursively = function (fiber) {
  if (fiber.return !== null) {
    resumeTimersRecursively(fiber.return);
  }

  if (fiber._debugIsCurrentlyTiming) {
    beginFiberMark(fiber, null);
  }
};

var resumeTimers = function () {
  // Resumes all measurements that were active during the last deferred loop.
  if (currentFiber !== null) {
    resumeTimersRecursively(currentFiber);
  }
};

function recordEffect() {
  {
    effectCountInCurrentCommit++;
  }
}
function recordScheduleUpdate() {
  {
    if (isCommitting) {
      hasScheduledUpdateInCurrentCommit = true;
    }

    if (currentPhase !== null && currentPhase !== 'componentWillMount' && currentPhase !== 'componentWillReceiveProps') {
      hasScheduledUpdateInCurrentPhase = true;
    }
  }
}
function startWorkTimer(fiber) {
  {
    if (!supportsUserTiming || shouldIgnoreFiber(fiber)) {
      return;
    } // If we pause, this is the fiber to unwind from.


    currentFiber = fiber;

    if (!beginFiberMark(fiber, null)) {
      return;
    }

    fiber._debugIsCurrentlyTiming = true;
  }
}
function cancelWorkTimer(fiber) {
  {
    if (!supportsUserTiming || shouldIgnoreFiber(fiber)) {
      return;
    } // Remember we shouldn't complete measurement for this fiber.
    // Otherwise flamechart will be deep even for small updates.


    fiber._debugIsCurrentlyTiming = false;
    clearFiberMark(fiber, null);
  }
}
function stopWorkTimer(fiber) {
  {
    if (!supportsUserTiming || shouldIgnoreFiber(fiber)) {
      return;
    } // If we pause, its parent is the fiber to unwind from.


    currentFiber = fiber.return;

    if (!fiber._debugIsCurrentlyTiming) {
      return;
    }

    fiber._debugIsCurrentlyTiming = false;
    endFiberMark(fiber, null, null);
  }
}
function stopFailedWorkTimer(fiber) {
  {
    if (!supportsUserTiming || shouldIgnoreFiber(fiber)) {
      return;
    } // If we pause, its parent is the fiber to unwind from.


    currentFiber = fiber.return;

    if (!fiber._debugIsCurrentlyTiming) {
      return;
    }

    fiber._debugIsCurrentlyTiming = false;
    var warning = fiber.tag === SuspenseComponent ? 'Rendering was suspended' : 'An error was thrown inside this error boundary';
    endFiberMark(fiber, null, warning);
  }
}
function startPhaseTimer(fiber, phase) {
  {
    if (!supportsUserTiming) {
      return;
    }

    clearPendingPhaseMeasurement();

    if (!beginFiberMark(fiber, phase)) {
      return;
    }

    currentPhaseFiber = fiber;
    currentPhase = phase;
  }
}
function stopPhaseTimer() {
  {
    if (!supportsUserTiming) {
      return;
    }

    if (currentPhase !== null && currentPhaseFiber !== null) {
      var warning = hasScheduledUpdateInCurrentPhase ? 'Scheduled a cascading update' : null;
      endFiberMark(currentPhaseFiber, currentPhase, warning);
    }

    currentPhase = null;
    currentPhaseFiber = null;
  }
}
function startWorkLoopTimer(nextUnitOfWork) {
  {
    currentFiber = nextUnitOfWork;

    if (!supportsUserTiming) {
      return;
    }

    commitCountInCurrentWorkLoop = 0; // This is top level call.
    // Any other measurements are performed within.

    beginMark('(React Tree Reconciliation)'); // Resume any measurements that were in progress during the last loop.

    resumeTimers();
  }
}
function stopWorkLoopTimer(interruptedBy, didCompleteRoot) {
  {
    if (!supportsUserTiming) {
      return;
    }

    var warning = null;

    if (interruptedBy !== null) {
      if (interruptedBy.tag === HostRoot) {
        warning = 'A top-level update interrupted the previous render';
      } else {
        var componentName = getComponentName(interruptedBy.type) || 'Unknown';
        warning = "An update to " + componentName + " interrupted the previous render";
      }
    } else if (commitCountInCurrentWorkLoop > 1) {
      warning = 'There were cascading updates';
    }

    commitCountInCurrentWorkLoop = 0;
    var label = didCompleteRoot ? '(React Tree Reconciliation: Completed Root)' : '(React Tree Reconciliation: Yielded)'; // Pause any measurements until the next loop.

    pauseTimers();
    endMark(label, '(React Tree Reconciliation)', warning);
  }
}
function startCommitTimer() {
  {
    if (!supportsUserTiming) {
      return;
    }

    isCommitting = true;
    hasScheduledUpdateInCurrentCommit = false;
    labelsInCurrentCommit.clear();
    beginMark('(Committing Changes)');
  }
}
function stopCommitTimer() {
  {
    if (!supportsUserTiming) {
      return;
    }

    var warning = null;

    if (hasScheduledUpdateInCurrentCommit) {
      warning = 'Lifecycle hook scheduled a cascading update';
    } else if (commitCountInCurrentWorkLoop > 0) {
      warning = 'Caused by a cascading update in earlier commit';
    }

    hasScheduledUpdateInCurrentCommit = false;
    commitCountInCurrentWorkLoop++;
    isCommitting = false;
    labelsInCurrentCommit.clear();
    endMark('(Committing Changes)', '(Committing Changes)', warning);
  }
}
function startCommitSnapshotEffectsTimer() {
  {
    if (!supportsUserTiming) {
      return;
    }

    effectCountInCurrentCommit = 0;
    beginMark('(Committing Snapshot Effects)');
  }
}
function stopCommitSnapshotEffectsTimer() {
  {
    if (!supportsUserTiming) {
      return;
    }

    var count = effectCountInCurrentCommit;
    effectCountInCurrentCommit = 0;
    endMark("(Committing Snapshot Effects: " + count + " Total)", '(Committing Snapshot Effects)', null);
  }
}
function startCommitHostEffectsTimer() {
  {
    if (!supportsUserTiming) {
      return;
    }

    effectCountInCurrentCommit = 0;
    beginMark('(Committing Host Effects)');
  }
}
function stopCommitHostEffectsTimer() {
  {
    if (!supportsUserTiming) {
      return;
    }

    var count = effectCountInCurrentCommit;
    effectCountInCurrentCommit = 0;
    endMark("(Committing Host Effects: " + count + " Total)", '(Committing Host Effects)', null);
  }
}
function startCommitLifeCyclesTimer() {
  {
    if (!supportsUserTiming) {
      return;
    }

    effectCountInCurrentCommit = 0;
    beginMark('(Calling Lifecycle Methods)');
  }
}
function stopCommitLifeCyclesTimer() {
  {
    if (!supportsUserTiming) {
      return;
    }

    var count = effectCountInCurrentCommit;
    effectCountInCurrentCommit = 0;
    endMark("(Calling Lifecycle Methods: " + count + " Total)", '(Calling Lifecycle Methods)', 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 = getComponentName(type) || 'Unknown';
      checkPropTypes(contextTypes, context, 'context', name, getCurrentFiberStackInDev);
    } // Cache unmasked context so we can avoid recreating masked context unless necessary.
    // Context is created before the class component is instantiated so check for instance.


    if (instance) {
      cacheContext(workInProgress, unmaskedContext, context);
    }

    return context;
  }
}

function hasContextChanged() {
  {
    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 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 = getComponentName(type) || '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;
    startPhaseTimer(fiber, 'getChildContext');
    childContext = instance.getChildContext();
    stopPhaseTimer();

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

    {
      var name = getComponentName(type) || 'Unknown';
      checkPropTypes(childContextTypes, childContext, 'child context', name, // In practice, there is one case in which we won't get a stack. It's when
      // somebody calls unstable_renderSubtreeIntoContainer() and we process
      // context from the parent component instance. The stack will be missing
      // because it's outside of the reconciliation, and so the pointer has not
      // been set. This is rare and doesn't matter. We'll also remove that API.
      getCurrentFiberStackInDev);
    }

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

function pushContextProvider(workInProgress) {
  {
    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 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 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 Error( "Found unexpected detached subtree parent. This error is likely caused by a bug in React. Please file an issue." );
      }
    }
  }
}

var LegacyRoot = 0;
var BlockingRoot = 1;
var ConcurrentRoot = 2;

var Scheduler_runWithPriority = Scheduler$1.unstable_runWithPriority,
    Scheduler_scheduleCallback = Scheduler$1.unstable_scheduleCallback,
    Scheduler_cancelCallback = Scheduler$1.unstable_cancelCallback,
    Scheduler_shouldYield = Scheduler$1.unstable_shouldYield,
    Scheduler_requestPaint = Scheduler$1.unstable_requestPaint,
    Scheduler_now = Scheduler$1.unstable_now,
    Scheduler_getCurrentPriorityLevel = Scheduler$1.unstable_getCurrentPriorityLevel,
    Scheduler_ImmediatePriority = Scheduler$1.unstable_ImmediatePriority,
    Scheduler_UserBlockingPriority = Scheduler$1.unstable_UserBlockingPriority,
    Scheduler_NormalPriority = Scheduler$1.unstable_NormalPriority,
    Scheduler_LowPriority = Scheduler$1.unstable_LowPriority,
    Scheduler_IdlePriority = Scheduler$1.unstable_IdlePriority;

{
  // Provide explicit error message when production+profiling bundle of e.g.
  // react-dom is used with production (non-profiling) bundle of
  // scheduler/tracing
  if (!(tracing.__interactionsRef != null && tracing.__interactionsRef.current != null)) {
    {
      throw Error( "It is not supported to run the profiling version of a renderer (for example, `react-dom/profiling`) without also replacing the `scheduler/tracing` module with `scheduler/tracing-profiling`. Your bundler might have a setting for aliasing both modules. Learn more at http://fb.me/react-profiling" );
    }
  }
}

var fakeCallbackNode = {}; // Except for NoPriority, these correspond to Scheduler priorities. We use
// ascending numbers so we can compare them like numbers. They start at 90 to
// avoid clashing with Scheduler's priorities.

var ImmediatePriority = 99;
var UserBlockingPriority = 98;
var NormalPriority = 97;
var LowPriority = 96;
var IdlePriority = 95; // NoPriority is the absence of priority. Also React-only.

var NoPriority = 90;
var shouldYield = Scheduler_shouldYield;
var requestPaint = // Fall back gracefully if we're running an older version of Scheduler.
Scheduler_requestPaint !== undefined ? Scheduler_requestPaint : function () {};
var syncQueue = null;
var immediateQueueCallbackNode = null;
var isFlushingSyncQueue = false;
var initialTimeMs = Scheduler_now(); // If the initial timestamp is reasonably small, use Scheduler's `now` directly.
// This will be the case for modern browsers that support `performance.now`. In
// older browsers, Scheduler falls back to `Date.now`, which returns a Unix
// timestamp. In that case, subtract the module initialization time to simulate
// the behavior of performance.now and keep our times small enough to fit
// within 32 bits.
// TODO: Consider lifting this into Scheduler.

var now = initialTimeMs < 10000 ? Scheduler_now : function () {
  return Scheduler_now() - initialTimeMs;
};
function getCurrentPriorityLevel() {
  switch (Scheduler_getCurrentPriorityLevel()) {
    case Scheduler_ImmediatePriority:
      return ImmediatePriority;

    case Scheduler_UserBlockingPriority:
      return UserBlockingPriority;

    case Scheduler_NormalPriority:
      return NormalPriority;

    case Scheduler_LowPriority:
      return LowPriority;

    case Scheduler_IdlePriority:
      return IdlePriority;

    default:
      {
        {
          throw Error( "Unknown priority level." );
        }
      }

  }
}

function reactPriorityToSchedulerPriority(reactPriorityLevel) {
  switch (reactPriorityLevel) {
    case ImmediatePriority:
      return Scheduler_ImmediatePriority;