image.hh 2.36 KB
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// Copyright (C) 2006 EPITA Research and Development Laboratory
//
// This file is part of the Olena Library.  This library is free
// software; you can redistribute it and/or modify it under the terms
// of the GNU General Public License version 2 as published by the
// Free Software Foundation.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this library; see the file COPYING.  If not, write to
// the Free Software Foundation, 51 Franklin Street, Fifth Floor,
// Boston, MA 02111-1307, USA.
//
// As a special exception, you may use this file as part of a free
// software library without restriction.  Specifically, if other files
// instantiate templates or use macros or inline functions from this
// file, or you compile this file and link it with other files to
// produce an executable, this file does not by itself cause the
// resulting executable to be covered by the GNU General Public
// License.  This exception does not however invalidate any other
// reasons why the executable file might be covered by the GNU General
// Public License.

#ifndef OLENA_AUTOMATIC_IMAGE_HH
# define OLENA_AUTOMATIC_IMAGE_HH

# include <oln/core/typedefs.hh>
# include <oln/morpher/tags.hh>


namespace oln
{
  // Forward declaration.
  namespace abstract
  {
    template <typename E> class image;

  } // end of namespace oln::abstract


  namespace automatic
  {

    /// Implementation corresponding to the interface
    /// oln::abstract::image for an identity morpher.
    template <typename E>
    class impl< abstract::image,
		morpher::tag::identity,
		E> :
      public virtual stc::any__simple<E>
    {
    private:

      typedef oln_type_of(E, topo)   topo_t;
      typedef oln_type_of(E, rvalue) rvalue_t;
      typedef oln_type_of(E, psite)  psite_t;

    public:

      /// Delegation.

      const topo_t& impl_topo() const
      {
	return this->exact().delegate().topo();
      }

      rvalue_t impl_op_read(const psite_t& p) const
      {
	return this->exact().delegate().operator()(p);
      }

    };

  } // end of namespace oln::automatic
  
} // end of namespace oln

#endif // ! OLENA_AUTOMATIC_IMAGE_HH