| | |
| | | 'use strict'; |
| | | // https://github.com/tc39/proposal-iterator-helpers |
| | | var $ = require('../internals/export'); |
| | | var apply = require('../internals/function-apply'); |
| | | var call = require('../internals/function-call'); |
| | | var anObject = require('../internals/an-object'); |
| | | var toPositiveInteger = require('../internals/to-positive-integer'); |
| | | var createIteratorProxy = require('../internals/iterator-create-proxy'); |
| | |
| | | var result, done; |
| | | while (this.remaining) { |
| | | this.remaining--; |
| | | result = anObject(next.call(iterator)); |
| | | result = anObject(call(next, iterator)); |
| | | done = this.done = !!result.done; |
| | | if (done) return; |
| | | } |
| | | result = anObject(next.apply(iterator, args)); |
| | | result = anObject(apply(next, iterator, args)); |
| | | done = this.done = !!result.done; |
| | | if (!done) return result.value; |
| | | }); |
| | | |
| | | $({ target: 'Iterator', proto: true, real: true }, { |
| | | $({ target: 'Iterator', proto: true, real: true, forced: true }, { |
| | | drop: function drop(limit) { |
| | | return new IteratorProxy({ |
| | | iterator: anObject(this), |