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29 lines
1.1 KiB
29 lines
1.1 KiB
'use strict'; |
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// https://github.com/tc39/proposal-iterator-helpers |
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var $ = require('../internals/export'); |
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var anInstance = require('../internals/an-instance'); |
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var createNonEnumerableProperty = require('../internals/create-non-enumerable-property'); |
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var hasOwn = require('../internals/has-own-property'); |
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var wellKnownSymbol = require('../internals/well-known-symbol'); |
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var AsyncIteratorPrototype = require('../internals/async-iterator-prototype'); |
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var IS_PURE = require('../internals/is-pure'); |
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var TO_STRING_TAG = wellKnownSymbol('toStringTag'); |
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var AsyncIteratorConstructor = function AsyncIterator() { |
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anInstance(this, AsyncIteratorPrototype); |
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}; |
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AsyncIteratorConstructor.prototype = AsyncIteratorPrototype; |
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if (!hasOwn(AsyncIteratorPrototype, TO_STRING_TAG)) { |
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createNonEnumerableProperty(AsyncIteratorPrototype, TO_STRING_TAG, 'AsyncIterator'); |
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} |
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if (IS_PURE || !hasOwn(AsyncIteratorPrototype, 'constructor') || AsyncIteratorPrototype.constructor === Object) { |
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createNonEnumerableProperty(AsyncIteratorPrototype, 'constructor', AsyncIteratorConstructor); |
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} |
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$({ global: true, forced: IS_PURE }, { |
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AsyncIterator: AsyncIteratorConstructor |
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});
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