LibTest/typed_data/Int32x4List/Int32x4List.view_A02_t01.dart

// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

/// @assertion
/// Int32x4List.view(
///    ByteBuffer buffer, [
///    int offsetInBytes = 0,
///    int length
/// ])
/// ...
/// Changes in the Int32x4List will be visible in the byte buffer and vice versa.
/// @description Checks that changes in the Int32x4List will be visible in the
/// byte buffer and vice versa.
/// @author ngl@unipro.ru


import "dart:typed_data";
import "../../../Utils/expect.dart";

Int32x4 i32x4(n) => new Int32x4(n, n, n, n);

equal(o1, o2) => o1.x == o2.x && o1.y == o2.y && o1.z == o2.z && o1.w == o2.w;

main() {
  var list = [
    i32x4(0), i32x4(1), i32x4(2), i32x4(3), i32x4(4), i32x4(5), i32x4(6),
    i32x4(7),i32x4(8), i32x4(9)
  ];
  var l = new Int32x4List.fromList(list);
  var buffer = l.buffer;
  var view = new Int32x4List.view(buffer, 0, 10);

  l[1] = i32x4(11);
  Expect.isTrue(equal(l[1], view[1]));

  view[4] = i32x4(14);
  Expect.isTrue(equal(l[4], view[4]));
}