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>
96 lines
3.3 KiB
JavaScript
96 lines
3.3 KiB
JavaScript
// Copyright 2016 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: --expose-gc --allow-natives-syntax
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d8.file.execute("test/mjsunit/wasm/wasm-module-builder.js");
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// Use global variables for all values where the test wants to maintain strict
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// control over value lifetime. Using local variables would not give sufficient
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// guarantees of the value lifetime.
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var module;
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var instance1;
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var instance2;
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var instance3;
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var instance4;
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(async function () {
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(function CompiledModuleInstancesInitialize1to3() {
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var builder = new WasmModuleBuilder();
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builder.addMemory(1, 1);
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builder.addImport("", "getValue", kSig_i_v);
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builder.addFunction("f", kSig_i_v)
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.addBody([
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kExprCallFunction, 0
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]).exportFunc();
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module = new WebAssembly.Module(builder.toBuffer());
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print("Initial instances=0");
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assertEquals(0, %WasmGetNumberOfInstances(module));
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instance1 = new WebAssembly.Instance(module, { "": { getValue: () => 1 } });
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print("Initial instances=1");
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assertEquals(1, %WasmGetNumberOfInstances(module));
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instance2 = new WebAssembly.Instance(module, { "": { getValue: () => 2 } });
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print("Initial instances=2");
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assertEquals(2, %WasmGetNumberOfInstances(module));
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instance3 = new WebAssembly.Instance(module, { "": { getValue: () => 3 } });
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print("Initial instances=3");
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assertEquals(3, %WasmGetNumberOfInstances(module));
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})();
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(function CompiledModuleInstancesClear1() {
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assertEquals(1, instance1.exports.f());
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instance1 = null;
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})();
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// Here and below, we need to invoke GC asynchronously and wait for it to
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// finish, so that it doesn't need to scan the stack. Otherwise, the objects
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// may not be reclaimed because of conservative stack scanning and the test
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// may not work as intended.
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// Note that two GC's are required because weak slots clearing is deferred.
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await gc({ type: 'major', execution: 'async' });
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await gc({ type: 'major', execution: 'async' });
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print("After gc instances=2");
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assertEquals(2, %WasmGetNumberOfInstances(module));
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(function CompiledModuleInstancesClear3() {
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assertEquals(3, instance3.exports.f());
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instance3 = null;
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})();
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// Note that two GC's are required because weak slots clearing is deferred.
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await gc({ type: 'major', execution: 'async' });
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await gc({ type: 'major', execution: 'async' });
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print("After gc instances=1");
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assertEquals(1, %WasmGetNumberOfInstances(module));
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(function CompiledModuleInstancesClear2() {
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assertEquals(2, instance2.exports.f());
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instance2 = null;
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})();
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// Note that two GC's are required because weak slots clearing is deferred.
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await gc({ type: 'major', execution: 'async' });
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await gc({ type: 'major', execution: 'async' });
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print("After gc instances=0");
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assertEquals(0, %WasmGetNumberOfInstances(module));
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(function CompiledModuleInstancesInitialize4AndClearModule() {
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instance4 = new WebAssembly.Instance(module, { "": { getValue: () => 4 } });
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assertEquals(4, instance4.exports.f());
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module = null;
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instance4 = null;
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})();
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// Note that two GC's are required because weak slots clearing is deferred.
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await gc({ type: 'major', execution: 'async' });
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await gc({ type: 'major', execution: 'async' });
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})();
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