Function test

deps/v8/test/mjsunit/object-in-array.js:21–40

(creator, getter, setter, expectedToken = T)

}

function test(creator, getter, setter, expectedToken = T) {
  // Warm up the creator function so there's feedback and the boilerplate
  // gets created.
  warmup(creator);

  const o1 = creator();
  assertEquals(expectedToken, getter(o1));

  if (setter == undefined) {
     return;
  }

  // Test that we did a deep copy by setting a field in o1, creating another
  // object, and asserting that it got a fresh copy of the data.
  setter(o1);
  assertNotEquals(expectedToken, getter(o1));

  const o2 = creator();
  assertEquals(expectedToken, getter(o2));
}

// Shallow array:
test(() => { return [T, 2, 3]; }, (o) => o[0], (o) => o[0] = T2);