| | |
| | | 'use strict'; |
| | | // https://github.com/tc39/proposal-iterator-helpers |
| | | var $ = require('../internals/export'); |
| | | var call = require('../internals/function-call'); |
| | | var aCallable = require('../internals/a-callable'); |
| | | var anObject = require('../internals/an-object'); |
| | | var createAsyncIteratorProxy = require('../internals/async-iterator-create-proxy'); |
| | |
| | | return new Promise(function (resolve, reject) { |
| | | var outerLoop = function () { |
| | | try { |
| | | Promise.resolve(anObject(state.next.call(state.iterator))).then(function (step) { |
| | | Promise.resolve(anObject(call(state.next, state.iterator))).then(function (step) { |
| | | try { |
| | | if (anObject(step).done) { |
| | | state.done = true; |
| | |
| | | var innerLoop = function () { |
| | | if (innerIterator = state.innerIterator) { |
| | | try { |
| | | Promise.resolve(anObject(state.innerNext.call(innerIterator))).then(function (result) { |
| | | Promise.resolve(anObject(call(state.innerNext, innerIterator))).then(function (result) { |
| | | try { |
| | | if (anObject(result).done) { |
| | | state.innerIterator = state.innerNext = null; |
| | |
| | | }); |
| | | }); |
| | | |
| | | $({ target: 'AsyncIterator', proto: true, real: true }, { |
| | | $({ target: 'AsyncIterator', proto: true, real: true, forced: true }, { |
| | | flatMap: function flatMap(mapper) { |
| | | return new AsyncIteratorProxy({ |
| | | iterator: anObject(this), |