| // Copyright (c) 2012, 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. |
| // Dart test program for testing the instanceof operation. |
| |
| // @dart = 2.9 |
| |
| import "package:expect/expect.dart"; |
| |
| // Tests involving generics. |
| |
| abstract class I<T> {} |
| |
| class A implements I<bool> {} |
| |
| class B<T> implements I<bool> {} |
| |
| abstract class K<T> {} |
| |
| abstract class L<T> extends K<bool> {} |
| |
| class C implements L<String> {} |
| |
| class D implements B<String> {} |
| |
| main() { |
| var a = new A(); |
| var b = new B<String>(); |
| var c = new C(); |
| var d = new D(); |
| // Repeat type checks so that inlined tests can be tested as well. |
| for (int i = 0; i < 5; i++) { |
| Expect.isFalse(a is I<String>); |
| Expect.isTrue(a is I<bool>); |
| Expect.isFalse(b is I<String>); |
| Expect.isFalse(c is K<String>); |
| Expect.isFalse(c is K<String>); |
| Expect.isTrue(c is L<String>); |
| Expect.isFalse(c is L<bool>); |
| Expect.isTrue(c is K<bool>); |
| Expect.isFalse(c is K<String>); |
| Expect.isFalse(d is I<String>); |
| Expect.isTrue(d is I<bool>); |
| } |
| } |