| // 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 |
| /// NORM(FutureOr<T>) = |
| /// let S be NORM(T) |
| /// if S is a top type then S |
| /// if S is Object then S |
| /// if S is Object* then S |
| /// if S is Never then Future<Never> |
| /// if S is Null then Future<Null>? |
| /// else FutureOr<S> |
| /// |
| /// @description Checks that if NORM(T) is Null then |
| /// NORM(FutureOr<T>) != Future<Null> |
| /// |
| /// @author sgrekhov@unipro.ru |
| |
| |
| import 'dart:async'; |
| |
| class A<X> {} |
| class B<X> implements A<X> {} |
| |
| class C extends B<FutureOr<Null>> implements A<Future<Null>> {} |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| main() { |
| new C(); |
| } |
