| /* |
| * Copyright (c) 2019, 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 It is a compile-time error if a parameterized type [T] is |
| * super-bounded when it is used in any of the following ways: |
| * ... |
| * [T] is an immediate subterm of an [extends] clause of a class (10.8), or it |
| * occurs as an element in the type list of an [implements] clause (10.9), or a |
| * [with] clause (10). |
| * @description Checks that exception is thrown if super-bounded class occurs in |
| * as an element in the type list of an [implements] clause |
| * @author iarkh@unipro.ru |
| */ |
| |
| class A<T extends A<T>> {} |
| |
| class B1 implements A {} //# 01: compile-time error |
| class B2<X extends A<X>> implements A<X> {} |
| |
| class B3 implements A<dynamic> {} //# 02: compile-time error |
| class B4 implements A<Object> {} //# 03: compile-time error |
| class B5 implements A<void> {} //# 04: compile-time error |
| class B6 implements A<Null> {} |
| |
| class B7 implements A<A<dynamic>> {} //# 05: compile-time error |
| class B8 implements A<A<Object>> {} //# 06: compile-time error |
| class B9 implements A<A<void>> {} //# 07: compile-time error |
| class B10 implements A<A<Null>> {} |
| |
| main() {} |