| /* |
| * 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(C<T0, ..., Tn>) = C<R0, ..., Rn> where Ri is NORM(Ti) |
| * |
| * @description Checks that NORM(C<T0, ..., Tn>) = C<R0, ..., Rn> where Ri is |
| * NORM(Ti). Test FutureOr<T> == Future<T> where T <: Future<T> |
| * |
| * @author sgrekhov@unipro.ru |
| */ |
| // Requirements=nnbd-strong |
| import 'dart:async'; |
| |
| class A<X> {} |
| class B<X> implements A<X> {} |
| class C<X> {} |
| |
| class C0 extends B<C<FutureOr<Null>>> implements A<C<Future<Null>?>> {} |
| |
| main() { |
| new C0(); |
| } |
