1 | /**
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2 | * @license
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3 | * Copyright Google LLC All Rights Reserved.
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4 | *
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5 | * Use of this source code is governed by an MIT-style license that can be
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6 | * found in the LICENSE file at https://angular.io/license
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7 | */
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8 | import { Options, Result, SassException } from 'sass';
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9 | /**
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10 | * The callback type for the `dart-sass` asynchronous render function.
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11 | */
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12 | declare type RenderCallback = (error?: SassException, result?: Result) => void;
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13 | /**
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14 | * A Sass renderer implementation that provides an interface that can be used by Webpack's
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15 | * `sass-loader`. The implementation uses a Worker thread to perform the Sass rendering
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16 | * with the `dart-sass` package. The `dart-sass` synchronous render function is used within
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17 | * the worker which can be up to two times faster than the asynchronous variant.
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18 | */
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19 | export declare class SassWorkerImplementation {
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20 | private readonly workers;
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21 | private readonly availableWorkers;
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22 | private readonly requests;
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23 | private idCounter;
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24 | private nextWorkerIndex;
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25 | /**
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26 | * Provides information about the Sass implementation.
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27 | * This mimics enough of the `dart-sass` value to be used with the `sass-loader`.
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28 | */
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29 | get info(): string;
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30 | /**
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31 | * The synchronous render function is not used by the `sass-loader`.
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32 | */
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33 | renderSync(): never;
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34 | /**
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35 | * Asynchronously request a Sass stylesheet to be renderered.
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36 | *
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37 | * @param options The `dart-sass` options to use when rendering the stylesheet.
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38 | * @param callback The function to execute when the rendering is complete.
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39 | */
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40 | render(options: Options, callback: RenderCallback): void;
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41 | /**
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42 | * Shutdown the Sass render worker.
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43 | * Executing this method will stop any pending render requests.
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44 | */
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45 | close(): void;
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46 | private createWorker;
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47 | private processImporters;
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48 | private createRequest;
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49 | }
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50 | export {};
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