any.h

//
// Copyright (c) 2014 Limit Point Systems, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//

// Interface for class any
//


#ifndef ANY_H
#define ANY_H

#ifndef SHEAF_DLL_SPEC_H
#include "SheafSystem/sheaf_dll_spec.h"
#endif

#ifndef SHEAF_H
#include "SheafSystem/sheaf.h"
#endif

namespace sheaf
{
  
class SHEAF_DLL_SPEC any
{

public:

  // GENERIC OBJECT INTERFACE

  virtual bool is_ancestor_of(const any* other) const;

  bool is_same_type(const any* other) const;

  virtual any* clone() const;

  virtual ~any();


  // CONTROLLABLE INVARIANT INTERFACE

  virtual bool invariant() const;

  inline bool invariant_check() const
  {
    return _disable_invariance_check_request_depth == 0;
  };

  inline void enable_invariant_check() const
  {
    --_disable_invariance_check_request_depth;
  };

  inline void disable_invariant_check() const
  {
    ++_disable_invariance_check_request_depth;
  };

  inline int disable_invariance_check_request_depth() const
  {
    return _disable_invariance_check_request_depth;
  };

protected:

  any();


private:

  mutable int _disable_invariance_check_request_depth;
};

} // namespace sheaf

#endif // ifndef ANY_H