| // Copyright (c) 2019, 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 An expression of the form e! evaluates e to a value v, throws a |
| /// runtime error if v is null, and otherwise evaluates to v. |
| /// |
| /// @description Check that an expression of the form e! evaluates e to a value |
| /// v, throws no runtime error if v is not null. Test 42 |
| /// @author sgrekhov@unipro.ru |
| /// @issue 39723 |
| |
| main() { |
| 42!; |
| // ^ |
| // [analyzer] STATIC_WARNING.UNNECESSARY_NON_NULL_ASSERTION |
| 42!.abs(); |
| // ^ |
| // [analyzer] STATIC_WARNING.UNNECESSARY_NON_NULL_ASSERTION |
| 42!?.abs(); |
| //^^^^^^ |
| // [analyzer] unspecified |
| 42.abs()!; |
| // ^ |
| // [analyzer] STATIC_WARNING.UNNECESSARY_NON_NULL_ASSERTION |
| } |
