| // Copyright (c) 2013, 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 |
| /// Int64List.view( |
| /// ByteBuffer buffer, [ |
| /// int byteOffset = 0, |
| /// int length |
| /// ]) |
| /// Creates an [Int64List] view of the specified region in buffer. |
| /// @description Checks that an instance of Int64List is created. |
| /// @author msyabro |
| |
| |
| import "dart:typed_data"; |
| import "../../../Utils/expect.dart"; |
| |
| void check(List<int> array, int offset, int length) { |
| var tmp = new Int64List.fromList(array); |
| var byteBuffer = tmp.buffer; |
| var l = new Int64List.view(byteBuffer, offset, length); |
| Expect.isTrue(l is Int64List); |
| } |
| |
| main() { |
| var elemSize = Int64List.bytesPerElement; |
| |
| check([], 0, 0); |
| check([9223372036854775807, -9223372036854775808], 0, 2); |
| check([1000, 1000, 1000], 0, 3); |
| check([0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17], 0, 18); |
| check([0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17], |
| 5 * elemSize, 13); |
| check([0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17], |
| 17 * elemSize, 1); |
| } |