| // 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 A formal constructor parameter is either a formal parameter or |
| * an initializing formal. An initializing formal has the form this.id, where |
| * id is the name of an instance variable of the immediately enclosing class. |
| * It is a compile-time error if id is not the name of an instance variable of |
| * the immediately enclosing class. |
| * @description Checks that it is a compile-time error if id is the name of an |
| * instance variable of the superclass. Test type aliases |
| * @compile-error |
| * @author sgrekhov@unipro.ru |
| */ |
| // SharedOptions=--enable-experiment=nonfunction-type-aliases |
| |
| class S { |
| var x; |
| } |
| typedef SAlias = S; |
| |
| class C extends SAlias { |
| C(this.x) {} |
| } |
| |
| main() { |
| new C(null); |
| } |