| // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| typedef void MyFunctionType(); |
| |
| class A native "*A" { |
| setClosure(MyFunctionType f) native; |
| check(MyFunctionType f) native; |
| invoke() native; |
| } |
| |
| makeA() native { return new A(); } |
| |
| void setup() native """ |
| function A() {} |
| A.prototype.setClosure = function(f) { this.f = f; }; |
| A.prototype.check = function(f) { return this.f === f; }; |
| A.prototype.invoke = function() { return this.f(); }; |
| makeA = function(){return new A;}; |
| """; |
| |
| |
| main() { |
| setup(); |
| A a = makeA(); |
| a.setClosure(null); |
| Expect.isTrue(a.check(null)); |
| bool caughtException = false; |
| try { |
| a.invoke(); |
| } on Exception catch (e) { |
| caughtException = true; |
| } |
| Expect.isTrue(caughtException); |
| } |