| // 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. |
| |
| // SharedOptions=--enable-experiment=nonfunction-type-aliases |
| |
| import 'package:expect/expect.dart'; |
| |
| class C<X extends num> { |
| factory C(Type t) = D<X>; |
| } |
| |
| class D<X extends num> implements C<X> { |
| D(Type t) { |
| Expect.equals(t, X); |
| } |
| } |
| |
| typedef T<X extends int> = C<X>; |
| |
| void main() { |
| T<int> x1 = T(int); |
| C<int> x2 = T(int); |
| } |