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