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