| // Copyright (c) 2017, 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. | |
| class A { | |
| void foo() {} | |
| } | |
| class B extends A { | |
| // This class declaration violates soundness, since it allows `new | |
| // B().foo(42)`, which would lead to invalid arguments being passed to A.foo. | |
| void /*@compile-error=unspecified*/ foo([x]); | |
| } | |
| void f(B b) { | |
| b.foo(); | |
| } | |
| main() { | |
| f(new B()); | |
| } |