| // 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 Duration difference(DateTime other) | |
| /// Throws [Error] if [other] is [:null:]. | |
| /// @description Checks that compile error appears if [other] is statically | |
| /// [null]. | |
| /// @author iarkh | |
| main() { | |
| DateTime.now().difference(null); | |
| // ^ | |
| // [analyzer] unspecified | |
| // [cfe] unspecified | |
| } |