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Diffstat (limited to 'node_modules/react/lib/ReactChildren.js')
-rw-r--r-- | node_modules/react/lib/ReactChildren.js | 190 |
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;
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