| // 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 The grammar for types does not allow multiple successive ? |
| /// operators on a type. That is, the grammar for types is nominally equivalent |
| /// to: |
| /// type' ::= functionType |
| /// | qualified typeArguments? |
| /// type ::= type' `?`? |
| /// |
| /// @description Check that the grammar for types does not allow multiple |
| /// successive ? operators on a type. Test type aliases |
| /// @author sgrekhov@unipro.ru |
| |
| class A {} |
| |
| typedef AAlias = A; |
| |
| typedef AAlias2 = A??; |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| class C<X extends AAlias??> {} |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| test(AAlias?? a) {} |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| |
| main() { |
| AAlias?? a = null; |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| } |
