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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | |
2 // for details. All rights reserved. Use of this source code is governed by a | |
3 // BSD-style license that can be found in the LICENSE file. | |
4 // Dart test program for testing Interfaces. | |
5 | |
6 interface Ai { | |
7 int foo(); | |
8 } | |
9 | |
10 interface Bi extends Ai default InterfaceTest { | |
11 Bi(); | |
12 } | |
13 | |
14 interface Simple extends Ai { } | |
15 | |
16 interface Aai { } | |
17 | |
18 interface Abi { } | |
19 | |
20 interface Bar { } | |
21 | |
22 interface Foo extends Bar { } | |
23 | |
24 interface Baz extends Bar, Foo { } | |
25 | |
26 class InterfaceTest implements Ai, Aai, Abi, Baz, Bi { | |
27 var f; | |
28 | |
29 InterfaceTest() {} | |
30 int foo() { return 1; } | |
31 | |
32 // intentionally unimplemented methods | |
33 abstract beta(); | |
34 abstract String beta1(); | |
35 abstract String beta2(double d); | |
36 } | |
37 | |
38 main() { | |
39 // instantiate an abstract class | |
40 var o = new Bi(); /// static type warning | |
41 Expect.equals(1, o.foo()); | |
42 } | |
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