mirror of
https://github.com/facebook/react.git
synced 2025-11-01 09:12:30 +00:00
Paul O'Shannessy
de711efcc9
Port of 076047012a which went in
externally before ReactLegacyDescriptor happened, so it needed to be
ported.
72 lines
2.2 KiB
JavaScript
72 lines
2.2 KiB
JavaScript
/**
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* Copyright 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 ReactLegacyDescriptor
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*/
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"use strict";
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var ReactDescriptor = require('ReactDescriptor');
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var invariant = require('invariant');
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/**
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* Transfer static properties from the source to the target. Functions are
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* rebound to have this reflect the original source.
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*/
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function proxyStaticMethods(target, source) {
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if (typeof source !== 'function') {
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return;
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}
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for (var key in source) {
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if (source.hasOwnProperty(key)) {
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var value = source[key];
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if (typeof value === 'function') {
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var bound = value.bind(source);
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// Copy any properties defined on the function, such as `isRequired` on
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// a PropTypes validator. (mergeInto refuses to work on functions.)
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for (var k in value) {
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if (value.hasOwnProperty(k)) {
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bound[k] = value[k];
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}
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}
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target[key] = bound;
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} else {
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target[key] = value;
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}
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}
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}
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}
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var ReactLegacyDescriptorFactory = {};
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ReactLegacyDescriptorFactory.wrapFactory = function(factory) {
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invariant(
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ReactDescriptor.isValidFactory(factory),
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'This is suppose to accept a descriptor factory'
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);
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var legacyDescriptorFactory = function(config, children) {
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// This factory should not be called when the new JSX transform is in place.
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// TODO: Warning - Use JSX instead of direct function calls.
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return factory.apply(this, arguments);
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};
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proxyStaticMethods(legacyDescriptorFactory, factory.type);
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legacyDescriptorFactory.isReactLegacyFactory = true;
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legacyDescriptorFactory.type = factory.type;
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return legacyDescriptorFactory;
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};
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module.exports = ReactLegacyDescriptorFactory;
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