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| 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 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 | 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 import "package:expect/expect.dart"; | 5 import "package:expect/expect.dart"; |
| 6 | 6 |
| 7 // Tests classes with getters and setters that do not have the same type. | 7 // Tests classes with getters and setters that do not have the same type. |
| 8 | 8 |
| 9 class A { | 9 class A { |
| 10 int a() { return 37;} | 10 int a() { |
| 11 return 37; |
| 12 } |
| 11 } | 13 } |
| 12 | 14 |
| 13 class B extends A{ | 15 class B extends A { |
| 14 int b() { return 38; } | 16 int b() { |
| 17 return 38; |
| 18 } |
| 15 } | 19 } |
| 16 | 20 |
| 17 class C {} | 21 class C {} |
| 18 | 22 |
| 19 class T1 { | 23 class T1 { |
| 20 A getterField; | 24 A getterField; |
| 21 A get field { return getterField; } | 25 A get field { |
| 26 return getterField; |
| 27 } |
| 28 |
| 22 // OK, B is assignable to A | 29 // OK, B is assignable to A |
| 23 void set field(B arg) { getterField = arg; } | 30 void set field(B arg) { |
| 31 getterField = arg; |
| 32 } |
| 24 } | 33 } |
| 25 | 34 |
| 26 class T2 { | 35 class T2 { |
| 27 A getterField; | 36 A getterField; |
| 28 C setterField; | 37 C setterField; |
| 29 A get field { return getterField; } | 38 A get field { |
| 39 return getterField; |
| 40 } |
| 30 | 41 |
| 31 // Type C is not assignable to A | 42 // Type C is not assignable to A |
| 32 void set field(C arg) { setterField = arg; } //# 01: static type warning | 43 void set field(C arg) { setterField = arg; } //# 01: static type warning |
| 33 } | 44 } |
| 34 | 45 |
| 35 class T3 { | 46 class T3 { |
| 36 B getterField; | 47 B getterField; |
| 37 B get field { return getterField; } | 48 B get field { |
| 49 return getterField; |
| 50 } |
| 51 |
| 38 // OK, A is assignable to B | 52 // OK, A is assignable to B |
| 39 void set field(A arg) { getterField = arg; } | 53 void set field(A arg) { |
| 54 getterField = arg; |
| 55 } |
| 40 } | 56 } |
| 41 | 57 |
| 42 | |
| 43 main() { | 58 main() { |
| 44 T1 instance1 = new T1(); | 59 T1 instance1 = new T1(); |
| 45 T2 instance2 = new T2(); //# 01: continued | 60 T2 instance2 = new T2(); //# 01: continued |
| 46 T3 instance3 = new T3(); | 61 T3 instance3 = new T3(); |
| 47 | 62 |
| 48 instance1.field = new B(); | 63 instance1.field = new B(); |
| 49 A resultA = instance1.field; | 64 A resultA = instance1.field; |
| 50 instance1.field = new A(); //# 03: dynamic type error | 65 instance1.field = new A(); //# 03: dynamic type error |
| 51 B resultB = instance1.field; | 66 B resultB = instance1.field; |
| 52 | 67 |
| 53 int result; | 68 int result; |
| 54 result = instance1.field.a(); | 69 result = instance1.field.a(); |
| 55 Expect.equals(37, result); | 70 Expect.equals(37, result); |
| 56 | 71 |
| 57 // Type 'A' has no method named 'b' | 72 // Type 'A' has no method named 'b' |
| 58 instance1.field.b(); //# 02: static type warning | 73 instance1.field.b(); //# 02: static type warning |
| 59 | 74 |
| 60 instance3.field = new B(); | 75 instance3.field = new B(); |
| 61 result = instance3.field.a(); | 76 result = instance3.field.a(); |
| 62 Expect.equals(37, result); | 77 Expect.equals(37, result); |
| 63 result = instance3.field.b(); | 78 result = instance3.field.b(); |
| 64 Expect.equals(38, result); | 79 Expect.equals(38, result); |
| 65 } | 80 } |
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