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Diffstat (limited to 'node_modules/react-dom/lib/ReactChildReconciler.js')
| -rw-r--r-- | node_modules/react-dom/lib/ReactChildReconciler.js | 152 |
1 files changed, 0 insertions, 152 deletions
diff --git a/node_modules/react-dom/lib/ReactChildReconciler.js b/node_modules/react-dom/lib/ReactChildReconciler.js deleted file mode 100644 index e89f763d3..000000000 --- a/node_modules/react-dom/lib/ReactChildReconciler.js +++ /dev/null @@ -1,152 +0,0 @@ -/** - * 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. - * - */ - -'use strict'; - -var ReactReconciler = require('./ReactReconciler'); - -var instantiateReactComponent = require('./instantiateReactComponent'); -var KeyEscapeUtils = require('./KeyEscapeUtils'); -var shouldUpdateReactComponent = require('./shouldUpdateReactComponent'); -var traverseAllChildren = require('./traverseAllChildren'); -var warning = require('fbjs/lib/warning'); - -var ReactComponentTreeHook; - -if (typeof process !== 'undefined' && process.env && process.env.NODE_ENV === 'test') { - // Temporary hack. - // Inline requires don't work well with Jest: - // https://github.com/facebook/react/issues/7240 - // Remove the inline requires when we don't need them anymore: - // https://github.com/facebook/react/pull/7178 - ReactComponentTreeHook = require('react/lib/ReactComponentTreeHook'); -} - -function instantiateChild(childInstances, child, name, selfDebugID) { - // We found a component instance. - var keyUnique = childInstances[name] === undefined; - if (process.env.NODE_ENV !== 'production') { - if (!ReactComponentTreeHook) { - ReactComponentTreeHook = require('react/lib/ReactComponentTreeHook'); - } - if (!keyUnique) { - process.env.NODE_ENV !== 'production' ? warning(false, 'flattenChildren(...): Encountered two children with the same key, ' + '`%s`. Child keys must be unique; when two children share a key, only ' + 'the first child will be used.%s', KeyEscapeUtils.unescape(name), ReactComponentTreeHook.getStackAddendumByID(selfDebugID)) : void 0; - } - } - if (child != null && keyUnique) { - childInstances[name] = instantiateReactComponent(child, true); - } -} - -/** - * ReactChildReconciler provides helpers for initializing or updating a set of - * children. Its output is suitable for passing it onto ReactMultiChild which - * does diffed reordering and insertion. - */ -var ReactChildReconciler = { - /** - * Generates a "mount image" for each of the supplied children. In the case - * of `ReactDOMComponent`, a mount image is a string of markup. - * - * @param {?object} nestedChildNodes Nested child maps. - * @return {?object} A set of child instances. - * @internal - */ - instantiateChildren: function (nestedChildNodes, transaction, context, selfDebugID) // 0 in production and for roots - { - if (nestedChildNodes == null) { - return null; - } - var childInstances = {}; - - if (process.env.NODE_ENV !== 'production') { - traverseAllChildren(nestedChildNodes, function (childInsts, child, name) { - return instantiateChild(childInsts, child, name, selfDebugID); - }, childInstances); - } else { - traverseAllChildren(nestedChildNodes, instantiateChild, childInstances); - } - return childInstances; - }, - - /** - * Updates the rendered children and returns a new set of children. - * - * @param {?object} prevChildren Previously initialized set of children. - * @param {?object} nextChildren Flat child element maps. - * @param {ReactReconcileTransaction} transaction - * @param {object} context - * @return {?object} A new set of child instances. - * @internal - */ - updateChildren: function (prevChildren, nextChildren, mountImages, removedNodes, transaction, hostParent, hostContainerInfo, context, selfDebugID) // 0 in production and for roots - { - // We currently don't have a way to track moves here but if we use iterators - // instead of for..in we can zip the iterators and check if an item has - // moved. - // TODO: If nothing has changed, return the prevChildren object so that we - // can quickly bailout if nothing has changed. - if (!nextChildren && !prevChildren) { - return; - } - var name; - var prevChild; - for (name in nextChildren) { - if (!nextChildren.hasOwnProperty(name)) { - continue; - } - prevChild = prevChildren && prevChildren[name]; - var prevElement = prevChild && prevChild._currentElement; - var nextElement = nextChildren[name]; - if (prevChild != null && shouldUpdateReactComponent(prevElement, nextElement)) { - ReactReconciler.receiveComponent(prevChild, nextElement, transaction, context); - nextChildren[name] = prevChild; - } else { - if (prevChild) { - removedNodes[name] = ReactReconciler.getHostNode(prevChild); - ReactReconciler.unmountComponent(prevChild, false); - } - // The child must be instantiated before it's mounted. - var nextChildInstance = instantiateReactComponent(nextElement, true); - nextChildren[name] = nextChildInstance; - // Creating mount image now ensures refs are resolved in right order - // (see https://github.com/facebook/react/pull/7101 for explanation). - var nextChildMountImage = ReactReconciler.mountComponent(nextChildInstance, transaction, hostParent, hostContainerInfo, context, selfDebugID); - mountImages.push(nextChildMountImage); - } - } - // Unmount children that are no longer present. - for (name in prevChildren) { - if (prevChildren.hasOwnProperty(name) && !(nextChildren && nextChildren.hasOwnProperty(name))) { - prevChild = prevChildren[name]; - removedNodes[name] = ReactReconciler.getHostNode(prevChild); - ReactReconciler.unmountComponent(prevChild, false); - } - } - }, - - /** - * Unmounts all rendered children. This should be used to clean up children - * when this component is unmounted. - * - * @param {?object} renderedChildren Previously initialized set of children. - * @internal - */ - unmountChildren: function (renderedChildren, safely) { - for (var name in renderedChildren) { - if (renderedChildren.hasOwnProperty(name)) { - var renderedChild = renderedChildren[name]; - ReactReconciler.unmountComponent(renderedChild, safely); - } - } - } -}; - -module.exports = ReactChildReconciler;
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