| 1 | 'use strict';
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| 2 |
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| 3 | var $ = require('../internals/export');
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| 4 | var anObject = require('../internals/an-object');
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| 5 | var toPositiveInteger = require('../internals/to-positive-integer');
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| 6 | var createAsyncIteratorProxy = require('../internals/create-async-iterator-proxy');
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| 7 |
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| 8 | var AsyncIteratorProxy = createAsyncIteratorProxy(function (arg) {
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| 9 | if (!this.remaining--) {
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| 10 | this.done = true;
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| 11 | return { done: true, value: undefined };
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| 12 | } return this.next.call(this.iterator, arg);
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| 13 | });
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| 14 |
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| 15 | $({ target: 'AsyncIterator', proto: true, real: true }, {
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| 16 | take: function take(limit) {
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| 17 | return new AsyncIteratorProxy({
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| 18 | iterator: anObject(this),
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| 19 | remaining: toPositiveInteger(limit)
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| 20 | });
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| 21 | }
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| 22 | });
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