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Paul O’Shannessy
8a47813baa
grep -rl 'Copyright 2013 Facebook' static_upstream | xargs perl -pi -w -e s/Copyright 2013 Facebook/Copyright 2013-2014 Facebook/g;' Not going to check in a script to do this since it will just change every year. Closes #1006
58 lines
1.7 KiB
JavaScript
58 lines
1.7 KiB
JavaScript
/**
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* Copyright 2013-2014 Facebook, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* @providesModule flattenChildren
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*/
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"use strict";
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var invariant = require('invariant');
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var traverseAllChildren = require('traverseAllChildren');
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/**
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* @param {function} traverseContext Context passed through traversal.
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* @param {?ReactComponent} child React child component.
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* @param {!string} name String name of key path to child.
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*/
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function flattenSingleChildIntoContext(traverseContext, child, name) {
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// We found a component instance.
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var result = traverseContext;
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invariant(
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!result.hasOwnProperty(name),
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'flattenChildren(...): Encountered two children with the same key, `%s`. ' +
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'Children keys must be unique.',
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name
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);
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if (child != null) {
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result[name] = child;
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}
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}
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/**
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* Flattens children that are typically specified as `props.children`. Any null
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* children will not be included in the resulting object.
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* @return {!object} flattened children keyed by name.
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*/
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function flattenChildren(children) {
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if (children == null) {
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return children;
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}
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var result = {};
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traverseAllChildren(children, flattenSingleChildIntoContext, result);
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return result;
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}
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module.exports = flattenChildren;
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