| // 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. |
| |
| // @dart = 2.9 |
| |
| /// @assertion Iterator<E> iterator |
| /// ... |
| /// The iterators of the same iterable can be stepped through independently, but |
| /// should return the same elements in the same order, as long as the underlying |
| /// collection isn't changed. |
| /// @description Checks that the iterators of the same iterable return the same |
| /// elements in the same order, as long as the underlying collection isn't |
| /// changed. |
| /// @author ngl@unipro.ru |
| |
| |
| import "dart:typed_data"; |
| import "../../../Utils/expect.dart"; |
| |
| Int32x4 i32x4p(n) => new Int32x4(n, n + 1, n + 2, n + 3); |
| |
| equal(o1, o2) { |
| return o1.x == o2.x && o1.y == o2.y && o1.z == o2.z && o1.w == o2.w; |
| } |
| |
| void check(list) { |
| var l = new Int32x4List.fromList(list); |
| var it1 = l.iterator; |
| var it2 = l.iterator; |
| var i = 0; |
| while (it1.moveNext()) { |
| it2.moveNext(); |
| i++; |
| Expect.isTrue(equal(it1.current, it2.current)); |
| } |
| Expect.equals(l.length, i); |
| } |
| |
| main() { |
| check([i32x4p(1)]); |
| check([i32x4p(1), i32x4p(5), i32x4p(9), i32x4p(13)]); |
| check([ |
| i32x4p(0), i32x4p(1), i32x4p(2), i32x4p(3), i32x4p(4), i32x4p(5), i32x4p(6), |
| i32x4p(7),i32x4p(8), i32x4p(9) |
| ]); |
| } |