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- 'use strict';
- var $ = require('../internals/export');
- var anInstance = require('../internals/an-instance');
- var getPrototypeOf = require('../internals/object-get-prototype-of');
- var createNonEnumerableProperty = require('../internals/create-non-enumerable-property');
- var hasOwn = require('../internals/has-own-property');
- var wellKnownSymbol = require('../internals/well-known-symbol');
- var AsyncIteratorPrototype = require('../internals/async-iterator-prototype');
- var IS_PURE = require('../internals/is-pure');
- var TO_STRING_TAG = wellKnownSymbol('toStringTag');
- var $TypeError = TypeError;
- var AsyncIteratorConstructor = function AsyncIterator() {
- anInstance(this, AsyncIteratorPrototype);
- if (getPrototypeOf(this) === AsyncIteratorPrototype) throw new $TypeError('Abstract class AsyncIterator not directly constructable');
- };
- AsyncIteratorConstructor.prototype = AsyncIteratorPrototype;
- if (!hasOwn(AsyncIteratorPrototype, TO_STRING_TAG)) {
- createNonEnumerableProperty(AsyncIteratorPrototype, TO_STRING_TAG, 'AsyncIterator');
- }
- if (IS_PURE || !hasOwn(AsyncIteratorPrototype, 'constructor') || AsyncIteratorPrototype.constructor === Object) {
- createNonEnumerableProperty(AsyncIteratorPrototype, 'constructor', AsyncIteratorConstructor);
- }
- // `AsyncIterator` constructor
- // https://github.com/tc39/proposal-async-iterator-helpers
- $({ global: true, constructor: true, forced: IS_PURE }, {
- AsyncIterator: AsyncIteratorConstructor
- });
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