| // Copyright (c) 2013, 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. |
| |
| // @dart = 2.9 |
| |
| // Test for F-Bounded Quantification. Regression test for issue 9291. |
| |
| class Entities<T extends ConceptEntity<T>> implements EntitiesApi<T> {} |
| |
| class ConceptEntity<T extends ConceptEntity<T>> implements EntityApi<T> {} |
| |
| abstract class EntityApi<T extends EntityApi<T>> {} |
| |
| abstract class EntitiesApi<T extends EntityApi<T>> {} |
| |
| class Concept extends ConceptEntity<Concept> {} |
| |
| main() { |
| new ConceptEntity<Concept>(); |
| } |