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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 // Test for downcasts on native classes. | 5 // Test for downcasts on native classes. |
6 | 6 |
7 import "native_testing.dart"; | 7 import "dart:_js_helper"; |
| 8 import "package:expect/expect.dart"; |
8 | 9 |
9 abstract class J {} | 10 abstract class J {} |
10 | 11 |
11 abstract class I extends J { | 12 abstract class I extends J { |
12 I read(); | 13 I read(); |
13 write(I x); | 14 write(I x); |
14 } | 15 } |
15 | 16 |
16 // Native implementation. | 17 // Native implementation. |
17 | 18 |
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40 child.prototype.constructor = child; | 41 child.prototype.constructor = child; |
41 } | 42 } |
42 } | 43 } |
43 function A(){} | 44 function A(){} |
44 function B(){} | 45 function B(){} |
45 inherits(B, A); | 46 inherits(B, A); |
46 A.prototype.read = function() { return this._x; }; | 47 A.prototype.read = function() { return this._x; }; |
47 A.prototype.write = function(x) { this._x = x; }; | 48 A.prototype.write = function(x) { this._x = x; }; |
48 makeA = function(){return new A}; | 49 makeA = function(){return new A}; |
49 makeB = function(){return new B}; | 50 makeB = function(){return new B}; |
50 | |
51 self.nativeConstructor(A); | |
52 self.nativeConstructor(B); | |
53 """; | 51 """; |
54 | 52 |
55 class C {} | 53 class C {} |
56 | 54 |
57 bool _check(a, b) => identical(a, b); | 55 bool _check(a, b) => identical(a, b); |
58 | 56 |
59 main() { | 57 main() { |
60 nativeTesting(); | |
61 setup(); | 58 setup(); |
62 | 59 |
63 var a1 = makeA(); | 60 var a1 = makeA(); |
64 var b1 = makeB(); | 61 var b1 = makeB(); |
65 var ob = new Object(); | 62 var ob = new Object(); |
66 | 63 |
67 Expect.throws(() => ob as J); | 64 Expect.throws(() => ob as J); |
68 Expect.throws(() => ob as I); | 65 Expect.throws(() => ob as I); |
69 Expect.throws(() => ob as A); | 66 Expect.throws(() => ob as A); |
70 Expect.throws(() => ob as B); | 67 Expect.throws(() => ob as B); |
71 Expect.throws(() => ob as C); | 68 Expect.throws(() => ob as C); |
72 | 69 |
73 // Use b1 first to prevent a1 is checks patching the A prototype. | 70 // Use b1 first to prevent a1 is checks patching the A prototype. |
74 Expect.equals(b1, b1 as J); | 71 Expect.equals(b1, b1 as J); |
75 Expect.equals(b1, b1 as I); | 72 Expect.equals(b1, b1 as I); |
76 Expect.equals(b1, b1 as A); | 73 Expect.equals(b1, b1 as A); |
77 Expect.equals(b1, b1 as B); | 74 Expect.equals(b1, b1 as B); |
78 | 75 |
79 Expect.equals(a1, a1 as J); | 76 Expect.equals(a1, a1 as J); |
80 Expect.equals(a1, a1 as I); | 77 Expect.equals(a1, a1 as I); |
81 Expect.equals(a1, a1 as A); | 78 Expect.equals(a1, a1 as A); |
82 Expect.throws(() => a1 as B); | 79 Expect.throws(() => a1 as B); |
83 Expect.throws(() => a1 as C); | 80 Expect.throws(() => a1 as C); |
84 } | 81 } |
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