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35 lines
1.2 KiB
JavaScript
35 lines
1.2 KiB
JavaScript
/** @license
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* Copyright 2016 - present The Material Motion Authors. All Rights Reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not
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* use this file except in compliance with the License. You may obtain a copy
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* 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, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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/**
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* TypeScript is a pain to use with polymorphic types unless you wrap them in a
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* function that returns a single type. So, that's what this is.
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*
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* If you give it an observer, you get back that observer. If you give it an
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* anonymous function, you get back that anonymous function wrapped in an
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* observer.
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*/
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export function wrapWithObserver(listener) {
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if (typeof listener === 'function') {
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return {
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next: listener
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};
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}
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else {
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return listener;
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}
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}
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export default wrapWithObserver;
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//# sourceMappingURL=wrapWithObserver.js.map
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