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Kmake/deps/v8/test/mjsunit/shared-memory/shared-struct-workers.js
2026-05-26 23:36:42 -07:00

54 lines
1.6 KiB
JavaScript

// Copyright 2022 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.
//
// Flags: --shared-string-table --harmony-struct --allow-natives-syntax
"use strict";
if (this.Worker) {
(function TestSharedStructPostMessage() {
let workerScript =
`onmessage = function({data:struct}) {
struct.struct_field.payload = 42;
struct.string_field = "worker";
postMessage("done");
};
postMessage("started");`;
let worker = new Worker(workerScript, { type: 'string' });
let started = worker.getMessage();
assertEquals("started", started);
let OuterStruct = new SharedStructType(['string_field', 'struct_field']);
let InnerStruct = new SharedStructType(['payload']);
let struct = new OuterStruct();
struct.struct_field = new InnerStruct();
struct.string_field = "main";
assertEquals("main", struct.string_field);
assertEquals(undefined, struct.struct_field.payload);
worker.postMessage(struct);
assertEquals("done", worker.getMessage());
assertEquals("worker", struct.string_field);
assertEquals(42, struct.struct_field.payload);
worker.terminate();
})();
(function TestObjectAssign() {
function f() {
const Struct = new SharedStructType(['field'])
const shared_struct = new Struct();
const obj = {'field': 1};
Object.assign(shared_struct, obj);
postMessage(shared_struct.field);
}
const worker = new Worker(f, {'type': 'function'});
assertEquals(1, worker.getMessage());
worker.terminate();
})();
}