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1 // Copyright (c) 2011, 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 | |
5 // Test for F-Bounded Quantification. | |
6 | |
7 class FBound<F extends FBound<F>> {} | |
8 | |
9 class Bar extends FBound<Bar> {} | |
10 | |
11 class SubBar extends Bar {} | |
12 | |
13 class Baz<T> extends FBound<Baz<T>> {} | |
14 | |
15 class SubBaz<T> extends Baz<T> {} | |
16 | |
17 | |
18 isCheckedMode() { | |
19 try { | |
20 var i = 1; | |
21 String s = i; | |
22 return false; | |
23 } catch(var e) { | |
24 return true; | |
25 } | |
26 } | |
27 | |
28 main() { | |
29 FBound<Bar> fb = new FBound<Bar>(); | |
30 { | |
31 bool got_type_error = false; | |
32 try { | |
33 FBound<SubBar> fsb = new FBound<SubBar>(); /// 01: static type warning | |
34 } catch (TypeError error) { | |
35 got_type_error = true; | |
36 } | |
37 // Type error in checked mode only. | |
38 Expect.isTrue(got_type_error == isCheckedMode()); /// 01: continued | |
39 } | |
40 FBound<Baz<Bar>> fbb = new FBound<Baz<Bar>>(); | |
41 { | |
42 bool got_type_error = false; | |
43 try { | |
44 FBound<SubBaz<Bar>> fsb = new FBound<SubBaz<Bar>>(); /// 02: static type
warning | |
45 } catch (TypeError error) { | |
46 got_type_error = true; | |
47 } | |
48 // Type error in checked mode only. | |
49 Expect.isTrue(got_type_error == isCheckedMode()); /// 02: continued | |
50 } | |
51 } | |
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