| /* |
| * 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 (true) |
| * @author sgrekhov@unipro.ru |
| * @issue 39723 |
| */ |
| |
| main() { |
| true!; |
| //^ |
| // [cfe] Operand of null-aware operation '!' has type 'bool' which excludes null. |
| // ^ |
| // [analyzer] STATIC_WARNING.UNNECESSARY_NON_NULL_ASSERTION |
| true!.toString(); |
| //^ |
| // [cfe] Operand of null-aware operation '!' has type 'bool' which excludes null. |
| // ^ |
| // [analyzer] STATIC_WARNING.UNNECESSARY_NON_NULL_ASSERTION |
| true!?.toString(); |
| // [error line 27, column 0] |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| true.toString()!; |
| // ^ |
| // [cfe] Operand of null-aware operation '!' has type 'String' which excludes null. |
| // ^ |
| // [analyzer] STATIC_WARNING.UNNECESSARY_NON_NULL_ASSERTION |
| } |
