| /* | |
| * Copyright (c) 2018, 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. | |
| */ | |
| /** | |
| * @description Regression test for the issue 33704 (Dart does not throw error | |
| * if class argument parameter extends void) | |
| * @Issue 33704 | |
| * @compile-error | |
| * @author iarkh@unipro.ru | |
| */ | |
| class A<X1 extends void> {} | |
| main() {} |