| // Copyright (c) 2022, 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. | |
| abstract class A { | |
| const factory A() = B; | |
| } | |
| abstract class B implements A { | |
| const factory B() = C; | |
| } | |
| class C implements B { | |
| const C(); | |
| } | |
| main() { | |
| A.new; | |
| } |