forked from LeenkxTeam/Kmake
91 lines
3.1 KiB
JavaScript
91 lines
3.1 KiB
JavaScript
// Copyright 2025 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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// Flags: --allow-natives-syntax --js-staging
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// Flags: --experimental-wasm-rab-integration
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'use strict';
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d8.file.execute('test/mjsunit/typedarray-helpers.js');
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const kPageSize = 0x10000;
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function Pad(a, v, start, ctor, pages) {
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for (let i = start; i < (pages * kPageSize) / ctor.BYTES_PER_ELEMENT; ++i) {
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a.push(v);
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}
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}
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function ZeroPad(a, start, ctor, pages) {
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Pad(a, 0, start, ctor, pages);
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}
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(function ArrayConcatDefault() {
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for (let ctor of ctors) {
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const rab = CreateGrowableSharedArrayBufferViaWasm(1, 2);
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const fixedLength = new ctor(rab, 0, 4);
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const taWrite = new ctor(rab);
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for (let i = 0; i < 4; ++i) {
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WriteToTypedArray(taWrite, i, i + 1);
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}
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// Orig. array: [1, 2, 3, 4]
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// [1, 2, 3, 4] << fixedLength
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function helper(receiver, ...params) {
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return ToNumbers(Array.prototype.concat.call(receiver, ...params));
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}
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// TypedArrays aren't concat spreadable by default.
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assertEquals([fixedLength, 5, 6, 7], helper(fixedLength, [5, 6], [7]));
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}
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})();
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(function ArrayConcatConcatSpreadable() {
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for (let ctor of ctors) {
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const rab = CreateGrowableSharedArrayBufferViaWasm(1, 2);
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const fixedLength = new ctor(rab, 0, 4);
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const fixedLengthWithOffset = new ctor(rab, 2 * ctor.BYTES_PER_ELEMENT, 2);
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const lengthTracking = new ctor(rab, 0);
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const lengthTrackingWithOffset = new ctor(rab, kPageSize - 2 * ctor.BYTES_PER_ELEMENT);
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fixedLength[Symbol.isConcatSpreadable] = true;
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fixedLengthWithOffset[Symbol.isConcatSpreadable] = true;
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lengthTracking[Symbol.isConcatSpreadable] = true;
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lengthTrackingWithOffset[Symbol.isConcatSpreadable] = true;
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const taWrite = new ctor(rab);
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for (let i = 0; i < 4; ++i) {
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WriteToTypedArray(taWrite, i, i + 1);
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}
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WriteToTypedArray(taWrite, taWrite.length - 2, 3);
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WriteToTypedArray(taWrite, taWrite.length - 1, 4);
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// Orig. array: [1, 2, 3, 4]
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// [1, 2, 3, 4] << fixedLength
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// [3, 4] << fixedLengthWithOffset
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// [1, 2, 3, 4, ...] << lengthTracking
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// [..., 3, 4] << lengthTrackingWithOffset
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function helper(receiver, ...params) {
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return ToNumbers(Array.prototype.concat.call(receiver, ...params));
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}
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assertEquals([0, 1, 2, 3, 4, 5, 6], helper([0], fixedLength, [5, 6]));
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assertEquals([0, 3, 4, 5, 6], helper([0], fixedLengthWithOffset, [5, 6]));
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let expectedLengthTracking = [0];
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for (let i = 0; i < 4; ++i) {
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expectedLengthTracking.push(i + 1);
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}
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ZeroPad(expectedLengthTracking, 4, ctor, 1);
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expectedLengthTracking[expectedLengthTracking.length - 2] = 3;
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expectedLengthTracking[expectedLengthTracking.length - 1] = 4;
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expectedLengthTracking.push(5);
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expectedLengthTracking.push(6);
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assertEquals(expectedLengthTracking, helper([0], lengthTracking, [5, 6]));
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assertEquals([0, 3, 4, 5, 6],
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helper([0], lengthTrackingWithOffset, [5, 6]));
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}
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})();
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