918fe04351
PR-URL: https://github.com/nodejs/node/pull/58070 Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com> Reviewed-By: Darshan Sen <raisinten@gmail.com> Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>
34 lines
1.0 KiB
JavaScript
34 lines
1.0 KiB
JavaScript
// Copyright 2024 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: --experimental-wasm-memory-control
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d8.file.execute("test/mjsunit/wasm/wasm-module-builder.js");
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const descriptor = d8.file.create_wasm_memory_map_descriptor(
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"test/mjsunit/wasm/wasm-module-builder.js");
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const file_content = d8.file.read('test/mjsunit/wasm/wasm-module-builder.js');
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const memory = new WebAssembly.Memory({initial: 10});
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descriptor.map(memory, 0x10000);
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const view = new Uint8Array(memory.buffer);
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for (let i = 0; i < file_content.length; ++i) {
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assertEquals(view[i + 0x10000], file_content.charCodeAt(i));
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}
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descriptor.unmap();
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for (let i = 0; i < file_content.length; ++i) {
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assertEquals(view[i + 0x10000], 0);
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}
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const empty_descriptor =
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new WebAssembly.MemoryMapDescriptor(file_content.length);
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empty_descriptor.map(memory, 0x10000);
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for (let i = 0; i < file_content.length; ++i) {
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assertEquals(view[i + 0x10000], 0);
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}
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