| // 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 Iterable<E> getRange(int start, int end) |
| /// Returns an Iterable that iterates over the objects in the range start |
| /// inclusive to end exclusive. |
| /// ... |
| /// An empty range (with end == start) is valid. |
| /// @description Checks that the correct iterable is returned. |
| /// @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; |
| |
| void check(List<Int32x4> list, int start, int end) { |
| var l = new Int32x4List.fromList(list); |
| var res = l.getRange(start, end); |
| var it = res.iterator; |
| var i = start; |
| while (it.moveNext()) { |
| Expect.isTrue(equal(l[i++], it.current)); |
| } |
| } |
| |
| main() { |
| check([], 0, 0); |
| check([i32x4(1)], 0, 1); |
| check([i32x4(10), i32x4(11), i32x4(12), i32x4(13)], 1, 4); |
| check([ |
| i32x4(0), i32x4(1), i32x4(2), i32x4(3), i32x4(4), i32x4(5), i32x4(6), |
| i32x4(7),i32x4(8), i32x4(9) |
| ], 3, 10); |
| } |