48 lines
1.6 KiB
TypeScript
48 lines
1.6 KiB
TypeScript
// *****************************************************************************
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// Copyright (C) 2019 Ericsson and others.
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//
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// This program and the accompanying materials are made available under the
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// terms of the Eclipse Public License v. 2.0 which is available at
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// http://www.eclipse.org/legal/epl-2.0.
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//
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// This Source Code may also be made available under the following Secondary
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// Licenses when the conditions for such availability set forth in the Eclipse
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// Public License v. 2.0 are satisfied: GNU General Public License, version 2
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// with the GNU Classpath Exception which is available at
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// https://www.gnu.org/software/classpath/license.html.
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//
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// SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-only WITH Classpath-exception-2.0
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// *****************************************************************************
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import stream = require('stream');
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/**
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* A Node stream like `/dev/null`.
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*
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* Writing goes to a black hole, reading returns `EOF`.
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*/
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export class DevNullStream extends stream.Duplex {
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constructor(options: {
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/**
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* Makes this stream call `destroy` on itself, emitting the `close` event.
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*/
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autoDestroy?: boolean,
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} = {}) {
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super();
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if (options.autoDestroy) {
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this.destroy();
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}
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}
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// eslint-disable-next-line @typescript-eslint/no-explicit-any
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override _write(chunk: any, encoding: string, callback: (err?: Error) => void): void {
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callback();
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}
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override _read(size: number): void {
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// eslint-disable-next-line no-null/no-null
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this.push(null);
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}
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}
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