load-from-immutable-typedarray.js

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// |jit-test| --enable-arraybuffer-immutable; skip-if: !ArrayBuffer.prototype.transferToImmutable

const IntTypedArrays = [

  Int8Array,

  Uint8Array,

  Int16Array,

  Uint16Array,

  Int32Array,

  Uint32Array,

  BigInt64Array,

  BigUint64Array,

];

function test(TA) {

  const length = 4;

  let expected = new TA(length);

  let type = expected[0].constructor;

  for (let i = 0; i < length; ++i) {

    expected[i] = type(i + 1);

  let actual = new TA(expected.buffer.sliceToImmutable());

  assertEq(actual.buffer.immutable, true);

  for (let i = 0; i < 200; ++i) {

    let index = i % length;

    assertEq(Atomics.load(actual, index), expected[index]);

for (let TA of IntTypedArrays) {

  // Copy test function to ensure monomorphic ICs.

  let copy = Function(`return ${test}`)();

  for (let i = 0; i < 2; ++i) copy(TA);