v8/test/inspector/debugger/wasm-side-effect-free-debug-evaluate.js

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// Copyright 2021 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.
utils.load('test/inspector/wasm-inspector-test.js');
let {session, contextGroup, Protocol} =
InspectorTest.start('Test side-effect-free evaluation of WebAssembly APIs');
contextGroup.addScript(`
var EMPTY_WASM_MODULE_BYTES = new Uint8Array([0x00, 0x61, 0x73, 0x6d, 0x01, 0x00, 0x00, 0x00]);
var someGlobalGlobal = new WebAssembly.Global({value: "i64"}, 42n);
var someGlobalMemory = new WebAssembly.Memory({initial: 1});
var someGlobalModule = new WebAssembly.Module(EMPTY_WASM_MODULE_BYTES);
var someGlobalInstance = new WebAssembly.Instance(someGlobalModule);
var someGlobalTable = new WebAssembly.Table({element: 'anyfunc', initial: 1});
someGlobalTable.set(0, x => x);
`, 0, 0, 'foo.js');
async function check(expression) {
const {result:{exceptionDetails}} = await Protocol.Runtime.evaluate({expression, throwOnSideEffect: true});
InspectorTest.log(`${expression}: ${exceptionDetails ? 'throws' : 'ok'}`);
}
InspectorTest.runAsyncTestSuite([
async function testWebAssemblyGlobal() {
await Protocol.Runtime.enable();
await check('someGlobalGlobal.value');
await check('someGlobalGlobal.valueOf()');
await check('new WebAssembly.Global({value: "f32", mutable: true}, 3.14)');
await check('new WebAssembly.Global({value: "f32", mutable: false}, 3.14)');
await check('new WebAssembly.Global({value: "f32", mutable: true}, 3.14).value');
await check('new WebAssembly.Global({value: "f32", mutable: true}, 3.14).valueOf()');
await Protocol.Runtime.disable();
},
async function testWebAssemblyInstance() {
await Protocol.Runtime.enable();
await check('someGlobalInstance.exports');
await check('new WebAssembly.Instance(someGlobalModule)');
await check('new WebAssembly.Instance(someGlobalModule).exports');
await Protocol.Runtime.disable();
},
async function testWebAssemblyMemory() {
await Protocol.Runtime.enable();
await check('someGlobalMemory.buffer');
await check('new WebAssembly.Memory({initial: 1})');
await check('new WebAssembly.Memory({initial: 1}).buffer');
await Protocol.Runtime.disable();
},
async function testWebAssemblyModule() {
await Protocol.Runtime.enable();
await check('WebAssembly.Module.customSections(someGlobalModule, ".debug_info")');
await check('WebAssembly.Module.exports(someGlobalModule)');
await check('WebAssembly.Module.imports(someGlobalModule)');
await check('new WebAssembly.Module(EMPTY_WASM_MODULE_BYTES)');
await check('WebAssembly.Module.customSections(new WebAssembly.Module(EMPTY_WASM_MODULE_BYTES), ".debug_info")');
await check('WebAssembly.Module.exports(new WebAssembly.Module(EMPTY_WASM_MODULE_BYTES))');
await check('WebAssembly.Module.imports(new WebAssembly.Module(EMPTY_WASM_MODULE_BYTES))');
await Protocol.Runtime.disable();
},
async function testWebAssemblyTable() {
await Protocol.Runtime.enable();
await check('someGlobalTable.get(0)');
await check('new WebAssembly.Table({element: "anyfunc", initial: 1})');
await check('new WebAssembly.Table({element: "anyfunc", initial: 1}).get(0)');
await Protocol.Runtime.disable();
}
]);