node/deps/v8/test/mjsunit/regress/regress-crbug-1454650.js
Chengzhong Wu 1a1639de3e deps: V8: cherry-pick 9ebca66a5740
Original commit message:

    [rab/gsab] Remove --harmony-rab-gsab (has been on by default for a while)

    Bug: v8:11111
    Change-Id: Ie74e7737f3e2e8730820cf00f1cbc7ae02b515af
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/5516580
    Commit-Queue: Marja Hölttä <marja@chromium.org>
    Reviewed-by: Camillo Bruni <cbruni@chromium.org>
    Reviewed-by: Shu-yu Guo <syg@chromium.org>
    Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
    Cr-Commit-Position: refs/heads/main@{#93848}

Refs: 9ebca66a57
PR-URL: https://github.com/nodejs/node/pull/53522
Reviewed-By: Yagiz Nizipli <yagiz.nizipli@sentry.io>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
PR-URL: https://github.com/nodejs/node/pull/53755
Fixes: https://github.com/nodejs/node/issues/53579
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Chengzhong Wu <legendecas@gmail.com>
2024-07-09 18:34:01 +00:00

24 lines
677 B
JavaScript

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