react-native/Libraries/Core/polyfillES6Collections.js
Christoph Nakazawa db641040a0 Do not overwrite Object.freeze
Summary: Now that React Native ships with a newer version of JSC, we do not need this code to wrap `Object.freeze` any longer.

Reviewed By: mmmulani

Differential Revision: D14779239

fbshipit-source-id: 1a6e1a9c7f4312572bd08ba604fa8c9d6b1927e1
2019-05-06 20:22:16 +02:00

26 lines
741 B
JavaScript

/**
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @flow strict-local
* @format
*/
'use strict';
const {polyfillGlobal} = require('PolyfillFunctions');
/**
* Polyfill ES6 collections (Map and Set).
* If you don't need these polyfills, don't use InitializeCore; just directly
* require the modules you need from InitializeCore for setup.
*/
const _shouldPolyfillCollection = require('_shouldPolyfillES6Collection');
if (_shouldPolyfillCollection('Map')) {
polyfillGlobal('Map', () => require('Map'));
}
if (_shouldPolyfillCollection('Set')) {
polyfillGlobal('Set', () => require('Set'));
}