Function TestAtomicsOperations

deps/v8/test/mjsunit/typedarray-helpers.js:426–452

(ta, index)

}

function TestAtomicsOperations(ta, index) {
  const one = IsBigIntTypedArray(ta) ? 1n : 1;
  const two = IsBigIntTypedArray(ta) ? 2n : 2;
  const three = IsBigIntTypedArray(ta) ? 3n : 3;

  Atomics.store(ta, index, one);
  assertEquals(one, Atomics.load(ta, index));
  assertEquals(one, Atomics.exchange(ta, index, two));
  assertEquals(two, Atomics.load(ta, index));
  assertEquals(two, Atomics.compareExchange(ta, index, two, three));
  assertEquals(three, Atomics.load(ta, index));

  assertEquals(three, Atomics.sub(ta, index, two));  // 3 - 2 = 1
  assertEquals(one, Atomics.load(ta, index));

  assertEquals(one, Atomics.add(ta, index, one));  // 1 + 1 = 2
  assertEquals(two, Atomics.load(ta, index));

  assertEquals(two, Atomics.or(ta, index, one));  // 2 | 1 = 3
  assertEquals(three, Atomics.load(ta, index));

  assertEquals(three, Atomics.xor(ta, index, one));  // 3 ^ 1 = 2
  assertEquals(two, Atomics.load(ta, index));

  assertEquals(two, Atomics.and(ta, index, three));  // 2 & 3 = 2
  assertEquals(two, Atomics.load(ta, index));
}

function AssertAtomicsOperationsThrow(ta, index, error) {
  const one = IsBigIntTypedArray(ta) ? 1n : 1;