1 files changed, 190 insertions, 0 deletions
diff --git a/node_modules/react/lib/ReactChildren.js b/node_modules/react/lib/ReactChildren.js
new file mode 100644
index 000000000..4a2cab70d
--- /dev/null
+++ b/node_modules/react/lib/ReactChildren.js
@@ -0,0 +1,190 @@
+/**
+ * Copyright 2013-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.
+ *
+ */
+
+'use strict';
+
+var PooledClass = require('./PooledClass');
+var ReactElement = require('./ReactElement');
+
+var emptyFunction = require('fbjs/lib/emptyFunction');
+var traverseAllChildren = require('./traverseAllChildren');
+
+var twoArgumentPooler = PooledClass.twoArgumentPooler;
+var fourArgumentPooler = PooledClass.fourArgumentPooler;
+
+var userProvidedKeyEscapeRegex = /\/+/g;
+function escapeUserProvidedKey(text) {
+  return ('' + text).replace(userProvidedKeyEscapeRegex, '$&/');
+}
+
+/**
+ * PooledClass representing the bookkeeping associated with performing a child
+ * traversal. Allows avoiding binding callbacks.
+ *
+ * @constructor ForEachBookKeeping
+ * @param {!function} forEachFunction Function to perform traversal with.
+ * @param {?*} forEachContext Context to perform context with.
+ */
+function ForEachBookKeeping(forEachFunction, forEachContext) {
+  this.func = forEachFunction;
+  this.context = forEachContext;
+  this.count = 0;
+}
+ForEachBookKeeping.prototype.destructor = function () {
+  this.func = null;
+  this.context = null;
+  this.count = 0;
+};
+PooledClass.addPoolingTo(ForEachBookKeeping, twoArgumentPooler);
+
+function forEachSingleChild(bookKeeping, child, name) {
+  var func = bookKeeping.func,
+      context = bookKeeping.context;
+
+  func.call(context, child, bookKeeping.count++);
+}
+
+/**
+ * Iterates through children that are typically specified as `props.children`.
+ *
+ * See https://facebook.github.io/react/docs/top-level-api.html#react.children.foreach
+ *
+ * The provided forEachFunc(child, index) will be called for each
+ * leaf child.
+ *
+ * @param {?*} children Children tree container.
+ * @param {function(*, int)} forEachFunc
+ * @param {*} forEachContext Context for forEachContext.
+ */
+function forEachChildren(children, forEachFunc, forEachContext) {
+  if (children == null) {
+    return children;
+  }
+  var traverseContext = ForEachBookKeeping.getPooled(forEachFunc, forEachContext);
+  traverseAllChildren(children, forEachSingleChild, traverseContext);
+  ForEachBookKeeping.release(traverseContext);
+}
+
+/**
+ * PooledClass representing the bookkeeping associated with performing a child
+ * mapping. Allows avoiding binding callbacks.
+ *
+ * @constructor MapBookKeeping
+ * @param {!*} mapResult Object containing the ordered map of results.
+ * @param {!function} mapFunction Function to perform mapping with.
+ * @param {?*} mapContext Context to perform mapping with.
+ */
+function MapBookKeeping(mapResult, keyPrefix, mapFunction, mapContext) {
+  this.result = mapResult;
+  this.keyPrefix = keyPrefix;
+  this.func = mapFunction;
+  this.context = mapContext;
+  this.count = 0;
+}
+MapBookKeeping.prototype.destructor = function () {
+  this.result = null;
+  this.keyPrefix = null;
+  this.func = null;
+  this.context = null;
+  this.count = 0;
+};
+PooledClass.addPoolingTo(MapBookKeeping, fourArgumentPooler);
+
+function mapSingleChildIntoContext(bookKeeping, child, childKey) {
+  var result = bookKeeping.result,
+      keyPrefix = bookKeeping.keyPrefix,
+      func = bookKeeping.func,
+      context = bookKeeping.context;
+
+
+  var mappedChild = func.call(context, child, bookKeeping.count++);
+  if (Array.isArray(mappedChild)) {
+    mapIntoWithKeyPrefixInternal(mappedChild, result, childKey, emptyFunction.thatReturnsArgument);
+  } else if (mappedChild != null) {
+    if (ReactElement.isValidElement(mappedChild)) {
+      mappedChild = ReactElement.cloneAndReplaceKey(mappedChild,
+      // Keep both the (mapped) and old keys if they differ, just as
+      // traverseAllChildren used to do for objects as children
+      keyPrefix + (mappedChild.key && (!child || child.key !== mappedChild.key) ? escapeUserProvidedKey(mappedChild.key) + '/' : '') + childKey);
+    }
+    result.push(mappedChild);
+  }
+}
+
+function mapIntoWithKeyPrefixInternal(children, array, prefix, func, context) {
+  var escapedPrefix = '';
+  if (prefix != null) {
+    escapedPrefix = escapeUserProvidedKey(prefix) + '/';
+  }
+  var traverseContext = MapBookKeeping.getPooled(array, escapedPrefix, func, context);
+  traverseAllChildren(children, mapSingleChildIntoContext, traverseContext);
+  MapBookKeeping.release(traverseContext);
+}
+
+/**
+ * Maps children that are typically specified as `props.children`.
+ *
+ * See https://facebook.github.io/react/docs/top-level-api.html#react.children.map
+ *
+ * The provided mapFunction(child, key, index) will be called for each
+ * leaf child.
+ *
+ * @param {?*} children Children tree container.
+ * @param {function(*, int)} func The map function.
+ * @param {*} context Context for mapFunction.
+ * @return {object} Object containing the ordered map of results.
+ */
+function mapChildren(children, func, context) {
+  if (children == null) {
+    return children;
+  }
+  var result = [];
+  mapIntoWithKeyPrefixInternal(children, result, null, func, context);
+  return result;
+}
+
+function forEachSingleChildDummy(traverseContext, child, name) {
+  return null;
+}
+
+/**
+ * Count the number of children that are typically specified as
+ * `props.children`.
+ *
+ * See https://facebook.github.io/react/docs/top-level-api.html#react.children.count
+ *
+ * @param {?*} children Children tree container.
+ * @return {number} The number of children.
+ */
+function countChildren(children, context) {
+  return traverseAllChildren(children, forEachSingleChildDummy, null);
+}
+
+/**
+ * Flatten a children object (typically specified as `props.children`) and
+ * return an array with appropriately re-keyed children.
+ *
+ * See https://facebook.github.io/react/docs/top-level-api.html#react.children.toarray
+ */
+function toArray(children) {
+  var result = [];
+  mapIntoWithKeyPrefixInternal(children, result, null, emptyFunction.thatReturnsArgument);
+  return result;
+}
+
+var ReactChildren = {
+  forEach: forEachChildren,
+  map: mapChildren,
+  mapIntoWithKeyPrefixInternal: mapIntoWithKeyPrefixInternal,
+  count: countChildren,
+  toArray: toArray
+};
+
+module.exports = ReactChildren;
+\ No newline at end of file