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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 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. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 // Test type promotion of assigned locals. | 5 // Test type promotion of assigned locals. |
6 | 6 |
7 class A { | 7 class A { |
8 var a = "a"; | 8 var a = "a"; |
9 } | 9 } |
10 class B extends A { | 10 class B extends A { |
11 var b = "b"; | 11 var b = "b"; |
12 } | 12 } |
13 class C extends B { | 13 class C extends B { |
14 var c = "c"; | 14 var c = "c"; |
15 } | 15 } |
16 class D extends A { | 16 class D extends A { |
17 var d = "d"; | 17 var d = "d"; |
18 } | 18 } |
19 class E implements C, D { | 19 class E implements C, D { |
20 var a = ""; | 20 var a = ""; |
21 var b = ""; | 21 var b = ""; |
22 var c = ""; | 22 var c = ""; |
23 var d = ""; | 23 var d = ""; |
24 } | 24 } |
25 | 25 |
26 void main() { | 26 void main() { |
27 A a = new E(); | 27 A a = new E(); |
28 if (a is B) { | 28 if (a is B) { |
29 print(a.a); | 29 print(a.a); |
30 print(a.b); /// 01: static type warning | 30 print(a.b); //# 01: static type warning |
31 a = null; | 31 a = null; |
32 } | 32 } |
33 if (a is B) { | 33 if (a is B) { |
34 a = null; | 34 a = null; |
35 print(a.a); | 35 print(a.a); |
36 print(a.b); /// 02: static type warning | 36 print(a.b); //# 02: static type warning |
37 } | 37 } |
38 if (a is B) { | 38 if (a is B) { |
39 print(a.a); | 39 print(a.a); |
40 print(a.b); /// 03: static type warning | 40 print(a.b); //# 03: static type warning |
41 { | 41 { |
42 a = null; | 42 a = null; |
43 } | 43 } |
44 print(a.a); | 44 print(a.a); |
45 print(a.b); /// 04: static type warning | 45 print(a.b); //# 04: static type warning |
46 } | 46 } |
47 } | 47 } |
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