29 lines
1.1 KiB
JavaScript
29 lines
1.1 KiB
JavaScript
'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 has = require('../internals/has');
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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, AsyncIteratorConstructor);
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};
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AsyncIteratorConstructor.prototype = AsyncIteratorPrototype;
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if (!has(AsyncIteratorPrototype, TO_STRING_TAG)) {
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createNonEnumerableProperty(AsyncIteratorPrototype, TO_STRING_TAG, 'AsyncIterator');
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}
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if (!has(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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