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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 // A native method prevents other members from having that name, including | |
| 6 // fields. However, native fields keep their name. The implication: a getter | |
| 7 // for the field must be based on the field's name, not the field's jsname. | |
| 8 | |
| 9 import "package:expect/expect.dart"; | |
| 10 import 'native_metadata.dart'; | |
| 11 | |
| 12 abstract class I { | |
| 13 int key; | |
| 14 } | |
| 15 | |
| 16 @Native("*A") | |
| 17 class A implements I { | |
| 18 int key; // jsname is 'key' | |
| 19 int getKey() => key; | |
| 20 } | |
| 21 | |
| 22 class B implements I { | |
| 23 int key; // jsname is not 'key' | |
| 24 B([this.key = 222]); | |
| 25 int getKey() => key; | |
| 26 } | |
| 27 | |
| 28 @Native("*X") | |
| 29 class X { | |
| 30 @Native('key') int native_key_method(); | |
| 31 // This should cause B.key to be renamed, but not A.key. | |
| 32 @Native('key') int key(); | |
| 33 } | |
| 34 | |
| 35 @native A makeA(); | |
| 36 @native X makeX(); | |
| 37 | |
| 38 | |
| 39 @Native(""" | |
| 40 // This code is all inside 'setup' and so not accesible from the global scope. | |
| 41 function A(){ this.key = 111; } | |
| 42 A.prototype.getKey = function(){return this.key;}; | |
| 43 | |
| 44 function X(){} | |
| 45 X.prototype.key = function(){return 666;}; | |
| 46 | |
| 47 makeA = function(){return new A}; | |
| 48 makeX = function(){return new X}; | |
| 49 """) | |
| 50 void setup(); | |
| 51 | |
| 52 testDynamic() { | |
| 53 var things = [makeA(), new B(), makeX()]; | |
| 54 var a = things[0]; | |
| 55 var b = things[1]; | |
| 56 var x = things[2]; | |
| 57 | |
| 58 Expect.equals(111, a.key); | |
| 59 Expect.equals(222, b.key); | |
| 60 Expect.equals(111, a.getKey()); | |
| 61 Expect.equals(222, b.getKey()); | |
| 62 | |
| 63 Expect.equals(666, x.native_key_method()); | |
| 64 Expect.equals(666, x.key()); | |
| 65 var fn = x.key; | |
| 66 Expect.equals(666, fn()); | |
| 67 } | |
| 68 | |
| 69 testPartial() { | |
| 70 var things = [makeA(), new B(), makeX()]; | |
| 71 I a = things[0]; | |
| 72 I b = things[1]; | |
| 73 | |
| 74 // All subtypes of I have a field 'key'. The compiler might be tempted to | |
| 75 // generate a direct property access, but that will fail since one of the | |
| 76 // fields is renamed. A getter call is required here. | |
| 77 Expect.equals(111, a.key); | |
| 78 Expect.equals(222, b.key); | |
| 79 } | |
| 80 | |
| 81 testTyped() { | |
| 82 A a = makeA(); | |
| 83 B b = new B(); | |
| 84 X x = makeX(); | |
| 85 | |
| 86 Expect.equals(666, x.native_key_method()); | |
| 87 Expect.equals(111, a.key); | |
| 88 Expect.equals(222, b.key); | |
| 89 Expect.equals(111, a.getKey()); | |
| 90 Expect.equals(222, b.getKey()); | |
| 91 } | |
| 92 | |
| 93 main() { | |
| 94 setup(); | |
| 95 | |
| 96 testTyped(); | |
| 97 testPartial(); | |
| 98 testDynamic(); | |
| 99 } | |
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