/**
 * Copyright 2014-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule ReactComponentEnvironment
 */

'use strict';

var _prodInvariant = require('./reactProdInvariant');

var invariant = require('fbjs/lib/invariant');

var injected = false;

var ReactComponentEnvironment = {

  /**
   * Optionally injectable hook for swapping out mount images in the middle of
   * the tree.
   */
  replaceNodeWithMarkup: null,

  /**
   * Optionally injectable hook for processing a queue of child updates. Will
   * later move into MultiChildComponents.
   */
  processChildrenUpdates: null,

  injection: {
    injectEnvironment: function (environment) {
      !!injected ? process.env.NODE_ENV !== 'production' ? invariant(false, 'ReactCompositeComponent: injectEnvironment() can only be called once.') : _prodInvariant('104') : void 0;
      ReactComponentEnvironment.replaceNodeWithMarkup = environment.replaceNodeWithMarkup;
      ReactComponentEnvironment.processChildrenUpdates = environment.processChildrenUpdates;
      injected = true;
    }
  }

};

module.exports = ReactComponentEnvironment;