<!DOCTYPE HTML><!-- webkit-test-runner [ jscOptions=--useSharedArrayBuffer=true ] -->
<body>
    <script>

    const WORKER_CODE = `
        self.onmessage = e => {
            const arrayBuffer = e.data;
            const uint8Array = new Uint8Array(arrayBuffer);

            uint8Array[0] = 1;

            while (uint8Array[0] === 1) {

            }

            arrayBuffer.grow(5);
        };
    `;

    async function sleep(ms) {
        return new Promise(resolve => setTimeout(resolve, ms));
    }

    async function main() {
        const w = new Worker(URL.createObjectURL(new Blob([WORKER_CODE])));

        const arrayBuffer = new SharedArrayBuffer(1, {
            maxByteLength: 5
        });

        const uint8Array = new Uint8Array(arrayBuffer);
        w.postMessage(arrayBuffer);

        while (uint8Array[0] === 0) {
            await sleep(0);
        }

        const array = [new ArrayBuffer(0x1000_0000), new ArrayBuffer(0x400_0000 - 19)];
        array.__defineGetter__(2, () => {
            uint8Array[0] = 2;

            return arrayBuffer;
        });

        array[37] = new Uint8Array([
            0x00, 0x00,

            0x37, 0x13, 0x00, 0x00,  // 0x1337,
            0x10,  // StringTag
            0x05, 0x00, 0x00, 0x80,  // length
            0x68, 0x65, 0x6c, 0x6c, 0x6f,  // hello

            0xff, 0xff, 0xff, 0xff,  // TerminatorTag
        ]);

        const result = structuredClone(array)[0x1337];
        alert(result === undefined ? 'PASS' : 'FAIL');
    }

    globalThis.testRunner?.waitUntilDone();
    globalThis.testRunner?.dumpAsText();

    main().catch(e => {
        console.log(e);
    }).finally(async () => {
        globalThis.testRunner?.notifyDone();
    });

    </script>
</body>