/* * Copyright (C) 2025 Apple Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ class Benchmark { files = Object.create(null); async init() { let WTBenchmark; await this.loadAllFiles(JetStream.preload); this.sourceCode = this.files.BUNDLE; this.WTBenchmark = self.WTBenchmark; } async loadAllFiles(preload) { const loadPromises = Object.entries(preload).map( async ([name, url]) => { if (name.endsWith(".wasm")) { const buffer = (await JetStream.getBinary(url)).buffer; if (!(buffer instanceof ArrayBuffer)) { // The returned array buffer is from a different global when // prefetching resources and running in the shell. This is fine, // except for the source map code doing an instanceof // check that fails for the prototype being in a different realm. Object.setPrototypeOf(buffer, ArrayBuffer.prototype); } this.files[name] = buffer; } else { this.files[name] = await JetStream.getString(url); } }) await Promise.all(loadPromises); } async runIteration() { await this.WTBenchmark.runTest(this.files); } }