aboutsummaryrefslogtreecommitdiff
path: root/node_modules/react/lib/ReactChildren.js
diff options
context:
space:
mode:
Diffstat (limited to 'node_modules/react/lib/ReactChildren.js')
-rw-r--r--node_modules/react/lib/ReactChildren.js190
1 files changed, 0 insertions, 190 deletions
diff --git a/node_modules/react/lib/ReactChildren.js b/node_modules/react/lib/ReactChildren.js
deleted file mode 100644
index 4a2cab70d..000000000
--- a/node_modules/react/lib/ReactChildren.js
+++ /dev/null
@@ -1,190 +0,0 @@
-/**
- * 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