// 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.

/// @assertion classDefinition:
///   metadata abstract? class identifier typeParameters? (superclass mixins?)? 
/// interfaces? ‘{’ (metadata classMemberDefinition)* ‘}’ |
///   metadata abstract? class mixinApplicationClass
/// ;
/// mixins:
///   with typeList
/// ;
/// @description Checks that a correct class declaration with mixins is 
/// accepted.
/// @author kaigorodov


class A {
  int a() {return 1;}
}

class M {
  var m;
}

class AM extends A with M {
}

main() {
  AM am = new AM();
  am.m = am.a(); 
}
