| // 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 v be a local variable or a formal parameter. An is-expression |
| * of the form v is T shows that v has type T iff T is more specific than the |
| * type S of the expression v and both T != dynamic and S != dynamic. |
| * @description Checks that if v is library variable, is-expression does not |
| * show that v has type T. |
| * @author ilya |
| */ |
| import '../../../Utils/expect.dart'; |
| |
| class C {} |
| |
| class D extends C { |
| f() {} |
| } |
| |
| C? x = C(); |
| C? x1; |
| |
| |
| main() { |
| Expect.isFalse(x is D); |
| Expect.isFalse(x1 is D); |
| } |
