/cvmfs/atlas.cern.ch/repo/sw/ASG/AnalysisBase/2.4.31/AthContainers/AthContainers/tools/ElementProxy.h

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// This file's extension implies that it's C, but it's really -*- C++ -*-.
// $Id$
#ifndef ATHCONTAINERS_TOOLS_ELEMENTPROXY_H
#define ATHCONTAINERS_TOOLS_ELEMENTPROXY_H


#include "AthContainers/OwnershipPolicy.h"
#include "AthLinks/tools/selection_ns.h"
#include <memory>


// Forward declarations.
ENTER_ROOT_SELECTION_NS
namespace DataModel_detail {
template <class DVL> class ElementProxy;
}
EXIT_ROOT_SELECTION_NS


namespace DataModel_detail {


template <class DVL>
class ElementProxy
{
public:
  ElementProxy (typename DVL::BaseContainer::iterator i,
                DVL* container);


  ElementProxy& operator= (const ElementProxy& rhs);


  ElementProxy& operator= (typename DVL::value_type rhs);


#if __cplusplus > 201100
#ifndef __REFLEX__

  ElementProxy& operator= (std::unique_ptr<typename DVL::base_value_type> rhs);
#endif
#endif


  operator typename DVL::value_type const() const;


  typename DVL::value_type const operator-> () const;



  DVL* container() const;


  typedef typename
    ROOT_SELECTION_NS::DataModel_detail::ElementProxy<DVL>::self
  self;


private:
  typename DVL::BaseContainer::iterator m_proxied;

  DVL* m_container;
};


} // namespace DataModel_detail


ENTER_ROOT_SELECTION_NS

namespace DataModel_detail {

#if ROOT_VERSION_CODE < ROOT_VERSION( 5, 99, 0 )

template <class DVL>
class ElementProxy
{
public:
  typedef ElementProxy<DVL> self;
  ROOT_SELECTION_NS::NO_SELF_AUTOSELECT dum2;
  ROOT_SELECTION_NS::TRANSIENT m_proxied;
  ROOT_SELECTION_NS::TRANSIENT m_container;
};

#else

template <class DVL>
class ElementProxy
#if ROOT_VERSION_CODE > ROOT_VERSION( 6, 0, 2 )
  : public SelectNoInstance
#endif
{
public:
  typedef ElementProxy<DVL> self;
  ROOT_SELECTION_NS::MemberAttributes< kTransient > m_proxied;
  ROOT_SELECTION_NS::MemberAttributes< kTransient > m_container;
};

#endif // ROOT_VERSION

}

EXIT_ROOT_SELECTION_NS


#include "AthContainers/tools/ElementProxy.icc"


#endif // not ATHCONTAINERS_TOOLS_ELEMENTPROXY_H

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