Upload Kmake

deps/v8/test/mjsunit/shared-memory/shared-struct-workers.js

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+// 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();
+})();
+}