You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
40 lines
1.4 KiB
40 lines
1.4 KiB
1 year ago
|
'use strict';
|
||
|
|
var $ = require('../internals/export');
|
||
|
|
var call = require('../internals/function-call');
|
||
|
|
var aCallable = require('../internals/a-callable');
|
||
|
|
var newPromiseCapabilityModule = require('../internals/new-promise-capability');
|
||
|
|
var perform = require('../internals/perform');
|
||
|
|
var iterate = require('../internals/iterate');
|
||
|
|
var PROMISE_STATICS_INCORRECT_ITERATION = require('../internals/promise-statics-incorrect-iteration');
|
||
|
|
|
||
|
|
// `Promise.all` method
|
||
|
|
// https://tc39.es/ecma262/#sec-promise.all
|
||
|
|
$({ target: 'Promise', stat: true, forced: PROMISE_STATICS_INCORRECT_ITERATION }, {
|
||
|
|
all: function all(iterable) {
|
||
|
|
var C = this;
|
||
|
|
var capability = newPromiseCapabilityModule.f(C);
|
||
|
|
var resolve = capability.resolve;
|
||
|
|
var reject = capability.reject;
|
||
|
|
var result = perform(function () {
|
||
|
|
var $promiseResolve = aCallable(C.resolve);
|
||
|
|
var values = [];
|
||
|
|
var counter = 0;
|
||
|
|
var remaining = 1;
|
||
|
|
iterate(iterable, function (promise) {
|
||
|
|
var index = counter++;
|
||
|
|
var alreadyCalled = false;
|
||
|
|
remaining++;
|
||
|
|
call($promiseResolve, C, promise).then(function (value) {
|
||
|
|
if (alreadyCalled) return;
|
||
|
|
alreadyCalled = true;
|
||
|
|
values[index] = value;
|
||
|
|
--remaining || resolve(values);
|
||
|
|
}, reject);
|
||
|
|
});
|
||
|
|
--remaining || resolve(values);
|
||
|
|
});
|
||
|
|
if (result.error) reject(result.value);
|
||
|
|
return capability.promise;
|
||
|
|
}
|
||
|
|
});
|