1/*! ***************************************************************************** 2Copyright (c) Microsoft Corporation. All rights reserved. 3Licensed under the Apache License, Version 2.0 (the "License"); you may not use 4this file except in compliance with the License. You may obtain a copy of the 5License at http://www.apache.org/licenses/LICENSE-2.0 6 7THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 8KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED 9WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE, 10MERCHANTABLITY OR NON-INFRINGEMENT. 11 12See the Apache Version 2.0 License for specific language governing permissions 13and limitations under the License. 14***************************************************************************** */ 15 16 17 18/// <reference no-default-lib="true"/> 19 20 21/// <reference lib="es2015.symbol" /> 22/// <reference lib="es2015.iterable" /> 23 24interface SymbolConstructor { 25 /** 26 * A method that returns the default async iterator for an object. Called by the semantics of 27 * the for-await-of statement. 28 */ 29 readonly asyncIterator: symbol; 30} 31 32interface AsyncIterator<T, TReturn = any, TNext = undefined> { 33 // NOTE: 'next' is defined using a tuple to ensure we report the correct assignability errors in all places. 34 next(...args: [] | [TNext]): Promise<IteratorResult<T, TReturn>>; 35 return?(value?: TReturn | PromiseLike<TReturn>): Promise<IteratorResult<T, TReturn>>; 36 throw?(e?: any): Promise<IteratorResult<T, TReturn>>; 37} 38 39interface AsyncIterable<T> { 40 [Symbol.asyncIterator](): AsyncIterator<T>; 41} 42 43interface AsyncIterableIterator<T> extends AsyncIterator<T> { 44 [Symbol.asyncIterator](): AsyncIterableIterator<T>; 45}