/**
 * @generated SignedSource<<b68d78236d45828b3f7f7fcc740782a9>>
 *
 * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 * !! This file is a check-in of a static_upstream project!      !!
 * !!                                                            !!
 * !! You should not modify this file directly. Instead:         !!
 * !! 1) Use `fjs use-upstream` to temporarily replace this with !!
 * !!    the latest version from upstream.                       !!
 * !! 2) Make your changes, test them, etc.                      !!
 * !! 3) Use `fjs push-upstream` to copy your changes back to    !!
 * !!    static_upstream.                                        !!
 * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 *
 * Copyright 2013-2014 Facebook, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * @providesModule mergeHelpers
 *
 * requiresPolyfills: Array.isArray
 */

"use strict";

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

/**
 * Maximum number of levels to traverse. Will catch circular structures.
 * @const
 */
var MAX_MERGE_DEPTH = 36;

/**
 * We won't worry about edge cases like new String('x') or new Boolean(true).
 * Functions are considered terminals, and arrays are not.
 * @param {*} o The item/object/value to test.
 * @return {boolean} true iff the argument is a terminal.
 */
var isTerminal = function(o) {
  return typeof o !== 'object' || o === null;
};

var mergeHelpers = {

  MAX_MERGE_DEPTH: MAX_MERGE_DEPTH,

  isTerminal: isTerminal,

  /**
   * Converts null/undefined values into empty object.
   *
   * @param {?Object=} arg Argument to be normalized (nullable optional)
   * @return {!Object}
   */
  normalizeMergeArg: function(arg) {
    return arg === undefined || arg === null ? {} : arg;
  },

  /**
   * If merging Arrays, a merge strategy *must* be supplied. If not, it is
   * likely the caller's fault. If this function is ever called with anything
   * but `one` and `two` being `Array`s, it is the fault of the merge utilities.
   *
   * @param {*} one Array to merge into.
   * @param {*} two Array to merge from.
   */
  checkMergeArrayArgs: function(one, two) {
    invariant(
      Array.isArray(one) && Array.isArray(two),
      'Tried to merge arrays, instead got %s and %s.',
      one,
      two
    );
  },

  /**
   * @param {*} one Object to merge into.
   * @param {*} two Object to merge from.
   */
  checkMergeObjectArgs: function(one, two) {
    mergeHelpers.checkMergeObjectArg(one);
    mergeHelpers.checkMergeObjectArg(two);
  },

  /**
   * @param {*} arg
   */
  checkMergeObjectArg: function(arg) {
    invariant(
      !isTerminal(arg) && !Array.isArray(arg),
      'Tried to merge an object, instead got %s.',
      arg
    );
  },

  /**
   * @param {*} arg
   */
  checkMergeIntoObjectArg: function(arg) {
    invariant(
      (!isTerminal(arg) || typeof arg === 'function') && !Array.isArray(arg),
      'Tried to merge into an object, instead got %s.',
      arg
    );
  },

  /**
   * Checks that a merge was not given a circular object or an object that had
   * too great of depth.
   *
   * @param {number} Level of recursion to validate against maximum.
   */
  checkMergeLevel: function(level) {
    invariant(
      level < MAX_MERGE_DEPTH,
      'Maximum deep merge depth exceeded. You may be attempting to merge ' +
      'circular structures in an unsupported way.'
    );
  },

  /**
   * Checks that the supplied merge strategy is valid.
   *
   * @param {string} Array merge strategy.
   */
  checkArrayStrategy: function(strategy) {
    invariant(
      strategy === undefined || strategy in mergeHelpers.ArrayStrategies,
      'You must provide an array strategy to deep merge functions to ' +
      'instruct the deep merge how to resolve merging two arrays.'
    );
  },

  /**
   * Set of possible behaviors of merge algorithms when encountering two Arrays
   * that must be merged together.
   * - `clobber`: The left `Array` is ignored.
   * - `indexByIndex`: The result is achieved by recursively deep merging at
   *   each index. (not yet supported.)
   */
  ArrayStrategies: keyMirror({
    Clobber: true,
    IndexByIndex: true
  })

};

module.exports = mergeHelpers;

@@ -4,799 +4,102 @@
 %0A * 
-@generated SignedSource%3C%3Cb68d78236d45828b3f7f7fcc740782a9%3E%3E%0A *%0A * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!%0A * !! This file is a check-in of a static_upstream project!      !!%0A * !!                                                            !!%0A * !! You should not modify this file directly. Instead:         !!%0A * !! 1) Use %60fjs use-upstream%60 to temporarily replace this with !!%0A * !!    the latest version from upstream.                       !!%0A * !! 2) Make your changes, test them, etc.                      !!%0A * !! 3) Use %60fjs push-upstream%60 to copy your changes back to    !!%0A * !!    static_upstream.                                        !!%0A * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!%0A *%0A * Copyright 2013-2014 Facebook, Inc.%0A *%0A * L
+Copyright (c) 2013-present, Facebook, Inc.%0A * All rights reserved.%0A *%0A * This source code is l
 icen
@@ -116,535 +116,192 @@
 the 
-Apache L
+BSD-style l
 icense
-, Version 2.0 (the %22License%22);%0A * you may not use this file except in compliance with the License.%0A * You may obtain a copy of the License at%0A *%0A * http://www.apache.org/licenses/LICENSE-2.0%0A *%0A * Unless required by applicable law or agreed to in writing, software%0A * distributed under the License is distributed on an %22AS IS%22 BASIS,%0A * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.%0A * See the License for the specific language governing permissions and%0A * limitations under the License
+ found in the%0A * LICENSE file in the root directory of this source tree. An additional grant%0A * of patent rights can be found in the PATENTS file in the same directory
 .%0A *
@@ -377,17 +377,17 @@
 ay%0A */%0A%0A
-%22
+'
 use stri
@@ -392,9 +392,9 @@
 rict
-%22
+'
 ;%0A%0Av
@@ -442,55 +442,8 @@
 t');
-%0Avar keyMirror = require('fbjs/lib/keyMirror');
 %0A%0A/*
@@ -653,16 +653,26 @@
 nctions 
+and Dates 
 are cons
@@ -882,16 +882,37 @@
 ject' %7C%7C
+ o instanceof Date %7C%7C
  o === n
@@ -3618,18 +3618,8 @@
 es: 
-keyMirror(
 %7B%0A  
@@ -3629,20 +3629,47 @@
 lobber: 
-true
+'Clobber',%0A    Concat: 'Concat'
 ,%0A    In
@@ -3684,17 +3684,28 @@
 ex: 
-true
+'IndexByIndex',
 %0A  %7D
-)
+,
 %0A%0A%7D;

Stop using lodash in RN