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90850cace9
Summary: Pull Request resolved: https://github.com/facebook/react-native/pull/21492 Differential Revision: D10288094 Pulled By: cpojer fbshipit-source-id: b1ca7344dda3043553be6945614b439a0f42a46a
28 lines
825 B
JavaScript
28 lines
825 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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* @flow strict-local
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* @format
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*/
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'use strict';
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const {polyfillGlobal} = require('PolyfillFunctions');
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/**
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* Polyfill ES6 collections (Map and Set).
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* If you don't need these polyfills, don't use InitializeCore; just directly
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* require the modules you need from InitializeCore for setup.
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*/
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const _shouldPolyfillCollection = require('_shouldPolyfillES6Collection');
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if (_shouldPolyfillCollection('Map')) {
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require('_wrapObjectFreezeAndFriends');
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polyfillGlobal('Map', () => require('Map'));
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}
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if (_shouldPolyfillCollection('Set')) {
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require('_wrapObjectFreezeAndFriends');
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polyfillGlobal('Set', () => require('Set'));
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}
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