| // Copyright (c) 2011, 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. |
| |
| import "native_testing.dart"; |
| |
| // Test to see if resolving a hidden native class's method interferes with |
| // subsequent resolving the subclass's method. This might happen if the |
| // superclass caches the method in the prototype, so shadowing the dispatcher |
| // stored on Object.prototype. |
| |
| // Version 1: It might be possible to call foo directly. |
| @Native("A1") |
| class A1 { |
| foo() native ; |
| } |
| |
| @Native("B1") |
| class B1 extends A1 { |
| foo() native ; |
| } |
| |
| makeA1() native ; |
| makeB1() native ; |
| |
| // Version 2: foo needs some kind of trampoline. |
| @Native("A2") |
| class A2 { |
| foo([a = 99]) native ; |
| } |
| |
| @Native("B2") |
| class B2 extends A2 { |
| foo([z = 1000]) native ; |
| } |
| |
| makeA2() native ; |
| makeB2() native ; |
| |
| void setup() native """ |
| // This code is all inside 'setup' and so not accesible from the global scope. |
| function inherits(child, parent) { |
| if (child.prototype.__proto__) { |
| child.prototype.__proto__ = parent.prototype; |
| } else { |
| function tmp() {}; |
| tmp.prototype = parent.prototype; |
| child.prototype = new tmp(); |
| child.prototype.constructor = child; |
| } |
| } |
| function A1(){} |
| function B1(){} |
| inherits(B1, A1); |
| A1.prototype.foo = function(){return 100;} |
| B1.prototype.foo = function(){return 200;} |
| |
| makeA1 = function(){return new A1}; |
| makeB1 = function(){return new B1}; |
| |
| function A2(){} |
| function B2(){} |
| inherits(B2, A2); |
| A2.prototype.foo = function(a){return a + 10000;} |
| B2.prototype.foo = function(z){return z + 20000;} |
| |
| makeA2 = function(){return new A2}; |
| makeB2 = function(){return new B2}; |
| |
| self.nativeConstructor(A1); |
| self.nativeConstructor(A2); |
| self.nativeConstructor(B1); |
| self.nativeConstructor(B2); |
| """; |
| |
| main() { |
| nativeTesting(); |
| setup(); |
| |
| var a1 = makeA1(); |
| var b1 = makeB1(); |
| Expect.equals(100, a1.foo()); |
| Expect.equals(200, b1.foo()); |
| |
| var a2 = makeA2(); |
| var b2 = makeB2(); |
| Expect.equals(10000 + 99, a2.foo()); |
| Expect.equals(20000 + 1000, b2.foo()); |
| |
| Expect.equals(10000 + 1, a2.foo(1)); |
| Expect.equals(20000 + 2, b2.foo(2)); |
| |
| bool caught = false; |
| try { |
| a1.foo(20); |
| } catch (ex) { |
| caught = true; |
| Expect.isTrue(ex is NoSuchMethodError); |
| } |
| Expect.isTrue(caught, 'a1.foo(20) should throw'); |
| |
| caught = false; |
| try { |
| var x = 123; |
| x.foo(20); |
| } catch (ex) { |
| caught = true; |
| Expect.isTrue(ex is NoSuchMethodError); |
| } |
| Expect.isTrue(caught, "x.foo(20) should throw"); |
| } |