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1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file | 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 | 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 "native_testing.dart"; | 5 import "native_testing.dart"; |
6 | 6 |
7 // Verify that native fields on classes are not renamed by the minifier. | 7 // Verify that native fields on classes are not renamed by the minifier. |
8 @Native("A") | 8 @Native("A") |
9 class A { | 9 class A { |
10 int myLongPropertyName; | 10 int myLongPropertyName; |
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32 } | 32 } |
33 }); | 33 }); |
34 a.getValue = 0; | 34 a.getValue = 0; |
35 return a; | 35 return a; |
36 } | 36 } |
37 | 37 |
38 makeA = function(){return new A;}; | 38 makeA = function(){return new A;}; |
39 self.nativeConstructor(A); | 39 self.nativeConstructor(A); |
40 """; | 40 """; |
41 | 41 |
42 A makeA() native ; | 42 A makeA() native; |
43 | 43 |
44 main() { | 44 main() { |
45 nativeTesting(); | 45 nativeTesting(); |
46 setup(); | 46 setup(); |
47 var a = makeA(); | 47 var a = makeA(); |
48 a.myLongPropertyName = 21; | 48 a.myLongPropertyName = 21; |
49 int gotten = a.myLongPropertyName; | 49 int gotten = a.myLongPropertyName; |
50 Expect.equals(11, gotten); | 50 Expect.equals(11, gotten); |
51 | 51 |
52 // Force interceptor dispatch. | 52 // Force interceptor dispatch. |
53 confuse(a).myLongPropertyName = 99; | 53 confuse(a).myLongPropertyName = 99; |
54 gotten = confuse(a).myLongPropertyName; | 54 gotten = confuse(a).myLongPropertyName; |
55 Expect.equals(22, gotten); | 55 Expect.equals(22, gotten); |
56 | 56 |
57 var a2 = makeA(); | 57 var a2 = makeA(); |
58 if (a2 is A) { | 58 if (a2 is A) { |
59 // Inside this 'if' the compiler knows that a2 is an A, so it is tempted | 59 // Inside this 'if' the compiler knows that a2 is an A, so it is tempted |
60 // to access myLongPropertyName directly, using its minified name. But | 60 // to access myLongPropertyName directly, using its minified name. But |
61 // renaming of native properties can only work using getters and setters | 61 // renaming of native properties can only work using getters and setters |
62 // that access the original name. | 62 // that access the original name. |
63 a2.myLongPropertyName = 21; | 63 a2.myLongPropertyName = 21; |
64 int gotten = a2.myLongPropertyName; | 64 int gotten = a2.myLongPropertyName; |
65 Expect.equals(11, gotten); | 65 Expect.equals(11, gotten); |
66 } | 66 } |
67 } | 67 } |
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