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3f46fe216d
BUG= R=floitsch@google.com Review URL: https://codereview.chromium.org//383413003 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@38375 260f80e4-7a28-3924-810f-c04153c831b5
86 lines
2 KiB
Dart
86 lines
2 KiB
Dart
// Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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import "dart:_js_helper";
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import "package:expect/expect.dart";
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// Test to see if resolving a hidden native class's method interferes with
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// subsequent resolving the subclass's method. This might happen if the
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// superclass caches the method in the prototype, so shadowing the dispatcher
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// stored on Object.prototype.
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@Native("A")
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class A {
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foo([a=100]) native;
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}
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@Native("B")
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class B extends A {
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}
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@Native("C")
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class C extends B {
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foo([z=300]) native;
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}
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@Native("D")
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class D extends C {
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}
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makeA() native;
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makeB() native;
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makeC() native;
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makeD() native;
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void setup() native """
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// This code is all inside 'setup' and so not accesible from the global scope.
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function inherits(child, parent) {
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if (child.prototype.__proto__) {
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child.prototype.__proto__ = parent.prototype;
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} else {
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function tmp() {};
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tmp.prototype = parent.prototype;
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child.prototype = new tmp();
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child.prototype.constructor = child;
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}
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}
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function A(){}
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function B(){}
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inherits(B, A);
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function C(){}
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inherits(C, B);
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function D(){}
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inherits(D, C);
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A.prototype.foo = function(a){return 'A.foo(' + a + ')';}
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C.prototype.foo = function(z){return 'C.foo(' + z + ')';}
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makeA = function(){return new A};
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makeB = function(){return new B};
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makeC = function(){return new C};
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makeD = function(){return new D};
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""";
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main() {
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setup();
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var a = makeA();
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var b = makeB();
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var c = makeC();
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var d = makeD();
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Expect.equals('A.foo(100)', b.foo());
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Expect.equals('C.foo(300)', d.foo());
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// If the above line fails with C.foo(100) then the dispatch to fill in the
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// default got the wrong one, followed by a second dispatch that resolved to
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// the correct native method.
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Expect.equals('A.foo(1)', a.foo(1));
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Expect.equals('A.foo(2)', b.foo(2));
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Expect.equals('C.foo(3)', c.foo(3));
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Expect.equals('C.foo(4)', d.foo(4));
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}
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