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Side by Side Diff: frog/tests/frog_native/native_class_inheritance2_frog_test.dart

Issue 10536169: Move frog/tests/{leg,leg_only,frog_native} to tests/compiler/. (Closed) Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/
Patch Set: Created 8 years, 6 months ago
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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 class A native "*A" {
11 foo([a=100]) native;
12 }
13
14 class B extends A native "*B" {
15 }
16
17 class C extends B native "*C" {
18 foo([z=300]) native;
19 }
20
21 class D extends C native "*D" {
22 }
23
24 makeA() native;
25 makeB() native;
26 makeC() native;
27 makeD() native;
28
29 void setup() native """
30 // This code is all inside 'setup' and so not accesible from the global scope.
31 function inherits(child, parent) {
32 if (child.prototype.__proto__) {
33 child.prototype.__proto__ = parent.prototype;
34 } else {
35 function tmp() {};
36 tmp.prototype = parent.prototype;
37 child.prototype = new tmp();
38 child.prototype.constructor = child;
39 }
40 }
41
42 function A(){}
43 function B(){}
44 inherits(B, A);
45 function C(){}
46 inherits(C, B);
47 function D(){}
48 inherits(D, C);
49
50 A.prototype.foo = function(a){return 'A.foo(' + a + ')';}
51 C.prototype.foo = function(z){return 'C.foo(' + z + ')';}
52
53 makeA = function(){return new A};
54 makeB = function(){return new B};
55 makeC = function(){return new C};
56 makeD = function(){return new D};
57 """;
58
59
60 main() {
61 setup();
62
63 var a = makeA();
64 var b = makeB();
65 var c = makeC();
66 var d = makeD();
67
68 Expect.equals('A.foo(100)', b.foo());
69 Expect.equals('C.foo(300)', d.foo());
70 // If the above line fails with C.foo(100) then the dispatch to fill in the
71 // default got the wrong one, followed by a second dispatch that resolved to
72 // the correct native method.
73
74 Expect.equals('A.foo(1)', a.foo(1));
75 Expect.equals('A.foo(2)', b.foo(2));
76 Expect.equals('C.foo(3)', c.foo(3));
77 Expect.equals('C.foo(4)', d.foo(4));
78 }
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