forked from LeenkxTeam/Kmake
24 lines
677 B
JavaScript
24 lines
677 B
JavaScript
// Copyright 2023 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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const gsab = new SharedArrayBuffer(100, {maxByteLength: 200});
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const ta = new Int8Array(1);
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class c extends Int8Array {
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constructor() {
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super(gsab);
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}
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}
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ta.constructor = c;
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const mapper_params = [];
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function mapper(x) {
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mapper_params.push(x);
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return x + 1;
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}
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const mapped = ta.map(mapper);
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assertEquals([0], mapper_params);
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// `mapped` is length-tracking with `gsab` as a backing buffer.
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assertEquals(gsab.byteLength, mapped.length);
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assertEquals(1, mapped[0]);
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assertEquals(gsab, mapped.buffer);
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