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39 lines
1.4 KiB
39 lines
1.4 KiB
'use strict'; |
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var $ = require('../internals/export'); |
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var call = require('../internals/function-call'); |
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var aCallable = require('../internals/a-callable'); |
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var newPromiseCapabilityModule = require('../internals/new-promise-capability'); |
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var perform = require('../internals/perform'); |
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var iterate = require('../internals/iterate'); |
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var PROMISE_STATICS_INCORRECT_ITERATION = require('../internals/promise-statics-incorrect-iteration'); |
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// `Promise.all` method |
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// https://tc39.es/ecma262/#sec-promise.all |
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$({ target: 'Promise', stat: true, forced: PROMISE_STATICS_INCORRECT_ITERATION }, { |
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all: function all(iterable) { |
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var C = this; |
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var capability = newPromiseCapabilityModule.f(C); |
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var resolve = capability.resolve; |
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var reject = capability.reject; |
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var result = perform(function () { |
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var $promiseResolve = aCallable(C.resolve); |
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var values = []; |
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var counter = 0; |
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var remaining = 1; |
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iterate(iterable, function (promise) { |
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var index = counter++; |
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var alreadyCalled = false; |
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remaining++; |
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call($promiseResolve, C, promise).then(function (value) { |
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if (alreadyCalled) return; |
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alreadyCalled = true; |
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values[index] = value; |
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--remaining || resolve(values); |
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}, reject); |
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}); |
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--remaining || resolve(values); |
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}); |
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if (result.error) reject(result.value); |
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return capability.promise; |
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} |
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});
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