| // 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 S is dynamic, is-expression does not show that |
| /// v has type T. |
| /// @author ilya |
| |
| import '../../../Utils/expect.dart'; |
| |
| class C {} |
| |
| f(var x) { |
| var y = x; |
| |
| Expect.isTrue(x is C); |
| Expect.isTrue(y is C); |
| } |
| |
| main() { |
| f(new C()); |
| } |
