// 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.

import "dart:_js_helper";
import "package:expect/expect.dart";

typedef void Callback0();
typedef void Callback1(arg1);
typedef void Callback2(arg1, arg2);

@Native("A")
class A {
  foo0(Callback0 closure) native;
  foo1(Callback1 closure, arg1) native;
  foo2(Callback2 closure, arg1, arg2) native;
}

makeA() native;

void setup() native """
function A() {}
A.prototype.foo0 = function(closure) { return closure(); };
A.prototype.foo1 = function(closure, arg1) { return closure(arg1); };
A.prototype.foo2 = function(closure, arg1, arg2) {
  return closure(arg1, arg2);
};
makeA = function(){return new A;};
""";


main() {
  setup();
  var a = makeA();
  Expect.equals(42, a.foo0(() => 42));
  Expect.equals(43, a.foo1((arg1) => arg1, 43));
  Expect.equals(44, a.foo2((arg1, arg2) => arg1 + arg2, 21, 23));

  A aa = a;
  Expect.equals(42, aa.foo0(() => 42));
  Expect.equals(43, aa.foo1((arg1) => arg1, 43));
  Expect.equals(44, aa.foo2((arg1, arg2) => arg1 + arg2, 21, 23));
}