| // Copyright (c) 2020, 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 DateTime add(Duration duration) |
| * Returns a new DateTime with the duration added to this. |
| * @description Checks that compile error appears if the argument is [null]. |
| * @author iarkh |
| */ |
| |
| main() { |
| new DateTime(2000, 1, 1, 0, 0, 0, 0).add(null); |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| } |
