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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 // Test to see if resolving a hidden native class's method interferes with | |
6 // subsequent resolving the subclass's method. This might happen if the | |
7 // superclass caches the method in the prototype, so shadowing the dispatcher | |
8 // stored on Object.prototype. | |
9 | |
10 // Version 1: It might be possible to call foo directly. | |
11 class A1 native "*A1" { | |
12 foo() native; | |
13 } | |
14 | |
15 class B1 extends A1 native "*B1" { | |
16 foo() native; | |
17 } | |
18 | |
19 makeA1() native; | |
20 makeB1() native; | |
21 | |
22 | |
23 // Version 2: foo needs some kind of trampoline. | |
24 class A2 native "*A2" { | |
25 foo([a=99]) native; | |
26 } | |
27 | |
28 class B2 extends A2 native "*B2" { | |
29 foo([z=1000]) native; | |
30 } | |
31 | |
32 makeA2() native; | |
33 makeB2() native; | |
34 | |
35 void setup() native """ | |
36 // This code is all inside 'setup' and so not accesible from the global scope. | |
37 function inherits(child, parent) { | |
38 if (child.prototype.__proto__) { | |
39 child.prototype.__proto__ = parent.prototype; | |
40 } else { | |
41 function tmp() {}; | |
42 tmp.prototype = parent.prototype; | |
43 child.prototype = new tmp(); | |
44 child.prototype.constructor = child; | |
45 } | |
46 } | |
47 function A1(){} | |
48 function B1(){} | |
49 inherits(B1, A1); | |
50 A1.prototype.foo = function(){return 100;} | |
51 B1.prototype.foo = function(){return 200;} | |
52 | |
53 makeA1 = function(){return new A1}; | |
54 makeB1 = function(){return new B1}; | |
55 | |
56 function A2(){} | |
57 function B2(){} | |
58 inherits(B2, A2); | |
59 A2.prototype.foo = function(a){return a + 10000;} | |
60 B2.prototype.foo = function(z){return z + 20000;} | |
61 | |
62 makeA2 = function(){return new A2}; | |
63 makeB2 = function(){return new B2}; | |
64 """; | |
65 | |
66 | |
67 main() { | |
68 setup(); | |
69 | |
70 var a1 = makeA1(); | |
71 var b1 = makeB1(); | |
72 Expect.equals(100, a1.foo()); | |
73 Expect.equals(200, b1.foo()); | |
74 | |
75 var a2 = makeA2(); | |
76 var b2 = makeB2(); | |
77 Expect.equals(10000 + 99, a2.foo()); | |
78 Expect.equals(20000 + 1000, b2.foo()); | |
79 | |
80 Expect.equals(10000 + 1, a2.foo(1)); | |
81 Expect.equals(20000 + 2, b2.foo(2)); | |
82 | |
83 bool caught = false; | |
84 try { | |
85 a1.foo(20); | |
86 } catch (var ex) { | |
87 caught = true; | |
88 Expect.isTrue(ex is NoSuchMethodException); | |
89 } | |
90 Expect.isTrue(caught, 'a1.foo(20) should throw'); | |
91 | |
92 caught = false; | |
93 try { | |
94 var x = 123; | |
95 x.foo(20); | |
96 } catch (var ex) { | |
97 caught = true; | |
98 Expect.isTrue(ex is NoSuchMethodException); | |
99 } | |
100 Expect.isTrue(caught, "x.foo(20) should throw"); | |
101 } | |
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