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53 lines
2.2 KiB
TypeScript
53 lines
2.2 KiB
TypeScript
/*! *****************************************************************************
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Copyright (c) Microsoft Corporation. All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License"); you may not use
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this file except in compliance with the License. You may obtain a copy of the
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License at http://www.apache.org/licenses/LICENSE-2.0
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THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
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WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
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MERCHANTABLITY OR NON-INFRINGEMENT.
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See the Apache Version 2.0 License for specific language governing permissions
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and limitations under the License.
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***************************************************************************** */
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/// <reference no-default-lib="true"/>
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/// <reference lib="es2015.symbol" />
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/// <reference lib="es2015.iterable" />
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interface SymbolConstructor {
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/**
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* A method that returns the default async iterator for an object. Called by the semantics of
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* the for-await-of statement.
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*/
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readonly asyncIterator: unique symbol;
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}
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interface AsyncIterator<T, TReturn = any, TNext = any> {
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// NOTE: 'next' is defined using a tuple to ensure we report the correct assignability errors in all places.
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next(...[value]: [] | [TNext]): Promise<IteratorResult<T, TReturn>>;
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return?(value?: TReturn | PromiseLike<TReturn>): Promise<IteratorResult<T, TReturn>>;
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throw?(e?: any): Promise<IteratorResult<T, TReturn>>;
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}
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interface AsyncIterable<T, TReturn = any, TNext = any> {
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[Symbol.asyncIterator](): AsyncIterator<T, TReturn, TNext>;
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}
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/**
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* Describes a user-defined {@link AsyncIterator} that is also async iterable.
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*/
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interface AsyncIterableIterator<T, TReturn = any, TNext = any> extends AsyncIterator<T, TReturn, TNext> {
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[Symbol.asyncIterator](): AsyncIterableIterator<T, TReturn, TNext>;
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}
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/**
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* Describes an {@link AsyncIterator} produced by the runtime that inherits from the intrinsic `AsyncIterator.prototype`.
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*/
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interface AsyncIteratorObject<T, TReturn = unknown, TNext = unknown> extends AsyncIterator<T, TReturn, TNext> {
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[Symbol.asyncIterator](): AsyncIteratorObject<T, TReturn, TNext>;
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}
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