metaprogramming_serialization.h

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/* +------------------------------------------------------------------------+
   |                     Mobile Robot Programming Toolkit (MRPT)            |
   |                          http://www.mrpt.org/                          |
   |                                                                        |
   | Copyright (c) 2005-2017, Individual contributors, see AUTHORS file     |
   | See: http://www.mrpt.org/Authors - All rights reserved.                |
   | Released under BSD License. See details in http://www.mrpt.org/License |
   +------------------------------------------------------------------------+ */
#pragma once

namespace mrpt
{
namespace utils
{
class CStream;

namespace metaprogramming
{
/** \addtogroup stlext_grp
  * @{ */

/** An object for reading objects from a stream, intended for being used in STL
 * algorithms. */
struct ObjectReadFromStream
{
   private:
        CStream* m_stream;

   public:
        inline ObjectReadFromStream(mrpt::utils::CStream* stream) : m_stream(stream)
        {
        }
        // T can be CSerializable::Ptr, CSerializable, or any other class
        // implementing ">>"
        template <typename T>
        inline void operator()(T& obj)
        {
                (*m_stream) >> obj;
        }
};

template <typename ptr_t>
struct ObjectReadFromStreamToPtrs
{
   private:
        CStream* m_stream;

   public:
        inline ObjectReadFromStreamToPtrs(mrpt::utils::CStream* stream)
                : m_stream(stream)
        {
        }
        template <typename ptr2ptr_t>
        inline void operator()(ptr2ptr_t& obj)
        {
                ptr_t p;
                (*m_stream) >> p;
                obj = p;
        }
};

/** An object for writing objects to a stream, intended for being used in STL
 * algorithms. */
struct ObjectWriteToStream
{
   private:
        CStream* m_stream;

   public:
        inline ObjectWriteToStream(mrpt::utils::CStream* stream) : m_stream(stream)
        {
        }

        // T can be CSerializable::Ptr, CSerializable, or any other class
        // implementing "<<"
        template <typename T>
        inline void operator()(const T& ptr)
        {
                (*m_stream) << ptr;
        }
};

/** @} */  // end of grouping
}
}
}