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deb2a94568
Summary: This change adds type information for `Platform.select` to make sure things are properly typed. This is the last diff in a stack that actually enables the newly fixed/added annotations and it will only land once all the type errors (320+) are fixed. Reviewed By: sahrens Differential Revision: D13318805 fbshipit-source-id: af0475d1a2f1e5ace4d513be48827e3659bd7f62
42 lines
968 B
JavaScript
42 lines
968 B
JavaScript
/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* @format
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* @flow
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*/
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'use strict';
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const NativeModules = require('NativeModules');
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export type PlatformSelectSpec<A, D> = {
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android?: A,
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default?: D,
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};
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const Platform = {
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OS: 'android',
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get Version() {
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const constants = NativeModules.PlatformConstants;
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return constants && constants.Version;
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},
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get isTesting(): boolean {
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if (__DEV__) {
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const constants = NativeModules.PlatformConstants;
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return constants && constants.isTesting;
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}
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return false;
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},
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get isTV(): boolean {
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const constants = NativeModules.PlatformConstants;
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return constants && constants.uiMode === 'tv';
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},
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select: <A, D>(spec: PlatformSelectSpec<A, D>): A | D =>
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'android' in spec ? spec.android : spec.default,
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};
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module.exports = Platform;
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