// Copyright (c) 2018, 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 A mixin declaration syntax separate from class declarations:
/// mixinDeclaration :
///   metadata? 'mixin' identifier typeParameters? ('on' types)?
///     ('implements' types)? '{' mixinMember* '}'
///
/// @description Checks that mixin declaration above is correct.
/// @author ngl@unipro.ru


class B {}
class C extends B {}

mixin M on B, C {}

class A extends C {}

class MA extends A with M {}

main() {
  new MA();
}