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- 'use strict';
- var $ = require('../internals/export');
- var aFunction = require('../internals/a-function');
- var newPromiseCapabilityModule = require('../internals/new-promise-capability');
- var perform = require('../internals/perform');
- var iterate = require('../internals/iterate');
- // `Promise.allSettled` method
- // https://github.com/tc39/proposal-promise-allSettled
- $({ target: 'Promise', stat: true }, {
- allSettled: function allSettled(iterable) {
- var C = this;
- var capability = newPromiseCapabilityModule.f(C);
- var resolve = capability.resolve;
- var reject = capability.reject;
- var result = perform(function () {
- var promiseResolve = aFunction(C.resolve);
- var values = [];
- var counter = 0;
- var remaining = 1;
- iterate(iterable, function (promise) {
- var index = counter++;
- var alreadyCalled = false;
- values.push(undefined);
- remaining++;
- promiseResolve.call(C, promise).then(function (value) {
- if (alreadyCalled) return;
- alreadyCalled = true;
- values[index] = { status: 'fulfilled', value: value };
- --remaining || resolve(values);
- }, function (e) {
- if (alreadyCalled) return;
- alreadyCalled = true;
- values[index] = { status: 'rejected', reason: e };
- --remaining || resolve(values);
- });
- });
- --remaining || resolve(values);
- });
- if (result.error) reject(result.value);
- return capability.promise;
- }
- });
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