Function CreateGsab

deps/v8/test/mjsunit/typedarray-growablesharedarraybuffer.js:550–559

(buffer_byte_length, ctor)

// Helpers for iteration tests.
function CreateGsab(buffer_byte_length, ctor) {
  const gsab = CreateGrowableSharedArrayBuffer(buffer_byte_length,
                                               2 * buffer_byte_length);
  // Write some data into the array.
  let ta_write = new ctor(gsab);
  for (let i = 0; i < buffer_byte_length / ctor.BYTES_PER_ELEMENT; ++i) {
    WriteToTypedArray(ta_write, i, i % 128);
  }
  return gsab;
}

function TestIterationAndGrow(ta, expected, gsab, grow_after,
                              new_byte_length) {