| // Copyright (c) 2011, 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 Let C be a concrete class that does not declare its own |
| * noSuchMethod(). |
| * It is a compile error if the implicit interface |
| * of C includes an instance member m of type F and C does not declare or |
| * inherit a corresponding instance member m of type F' such that F' <: F. |
| * @description Checks that there are no warnings if the type F' of |
| * inherited instance member m is in fact a subtype of F. |
| * @static-clean |
| * @author ilya |
| */ |
| |
| abstract class I { |
| foo(int x); |
| } |
| |
| class S { |
| foo(num x) {} |
| } |
| |
| class C extends S implements I {} |
| |
| main () { |
| new C(); |
| } |
