react-native/Libraries/Promise.js

38 lines
1.1 KiB
JavaScript

/**
* Copyright (c) 2016-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*
* @providesModule Promise
* @flow
*/
'use strict';
const Promise = require('fbjs/lib/Promise.native');
if (__DEV__) {
require('promise/setimmediate/rejection-tracking').enable({
allRejections: true,
onUnhandled: (id, error = {}) => {
const {message = null, stack = null} = error;
const warning =
`Possible Unhandled Promise Rejection (id: ${id}):\n` +
(message == null ? '' : `${message}\n`) +
(stack == null ? '' : stack);
console.warn(warning);
},
onHandled: (id) => {
const warning =
`Promise Rejection Handled (id: ${id})\n` +
'This means you can ignore any previous messages of the form ' +
`"Possible Unhandled Promise Rejection (id: ${id}):"`;
console.warn(warning);
},
});
}
module.exports = Promise;