Files
react-native/Libraries/Promise.js
T
Xuan Huang 0a28b34dac Conditionalize Promise Polyfill for Hermes
Summary:
On Hermes, RN can directly use the Promise from global w/o the need of polyfilling it.

PromiseRejectionTrackingOptions are extracted to its own file so it can be shared by
both codepaths and preserve the behaviors that it's only imported on dev.
Some zero-overhead type gymnastics are used to flow-type it properly.

Changelog:
[General] - made promise polyfill conditionalized on Hermes

Reviewed By: cpojer

Differential Revision: D24068716

fbshipit-source-id: 3e0b1675493908324f27cc5b7300d8cc42a03acc
2020-10-19 15:24:38 -07:00

25 lines
548 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.
*
* @format
* @flow strict
*/
'use strict';
const Promise = require('promise/setimmediate/es6-extensions');
require('promise/setimmediate/done');
require('promise/setimmediate/finally');
if (__DEV__) {
require('promise/setimmediate/rejection-tracking').enable(
require('./promiseRejectionTrackingOptions').default,
);
}
module.exports = Promise;