| // Copyright (c) 2023, 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 A compile-time error occurs if an extension type has a |
| /// non-extension superinterface whose transitive alias expansion is a type |
| /// variable, a deferred type, any top type (including dynamic and void), the |
| /// type Null, any function type, the type Function, any record type, the type |
| /// Record, or any type of the form T? or FutureOr<T> for any type T. |
| /// |
| /// @description Checks that it is a compile-time error if an extension type |
| /// has a non-extension superinterface whose transitive alias expansion is a |
| /// type `Record` |
| /// @author sgrekhov22@gmail.com |
| |
| typedef RAlias = Record; |
| |
| extension type ET1((int,) id) implements Record {} |
| // ^^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| extension type ET2<T extends Record>(T id) implements RAlias {} |
| // ^^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| extension type ET3(() id) implements Record {} |
| // ^^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| main() { |
| print(ET1); |
| print(ET2); |
| print(ET3); |
| } |
