pointertype.cc

C++ Reflection & Service Library

/* C++ Reflection & Serice Library
 * Copyright (C) 2003  Marcus Perlick
 * mailto: [e-mail]
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * 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
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 * USA
 *
 * This file is part of the "C++ Reflection & Serice Library" */
#include "PointerType.hh"

#include <cassert>
#include <new>

#include "align.hh"

namespace rfl {

  static mpu::String mkPointerName( const Type& pointeeType )
  {
    mpu::String tmp = pointeeType.getName();
    tmp += '*';
    return tmp;
  }

  PointerType::PointerType( const Type& pointeeType ) :
    Type( ID_PTR,
	  mkPointerName( pointeeType ),
	  sizeof(void*),
	  AlignmentOf<void*>::is(),
	  1,
	  &PointerType::fCreate,
	  &PointerType::fCCreate,
	  &PointerType::fDestroy,
	  &PointerType::fAssign,
	  &PointerType::fNewObj,
	  &PointerType::fNewCopy,
	  &PointerType::fDelObj ),
    pointee_( &pointeeType )
  {}

  void
  PointerType::avStartCall( av_alist& avList,
			    void* fnPtr,
			    void *retVal ) const
  {
    av_start_ptr( avList, fnPtr, void*, *(void**)retVal );
  }

  void
  PointerType::avPutArg( av_alist& avList, void* arg ) const
  {
    av_ptr( avList, void*, *(void**)arg );
  }
  
  void
  PointerType::fCreate( const Type*, void* addr )
  {
    *(void**)addr = 0;
  }

  void
  PointerType::fCCreate( const Type*, void* addr, const void* obj )
  {
    *(void**)addr = *(void**)obj;
  }

  void
  PointerType::fDestroy( const Type*, void* obj )
  {}

  void
  PointerType::fAssign( const Type*, void* dst, const void* src )
  {
    *(void**)dst = *(void**)src;
  }

  void*
  PointerType::fNewObj( const Type* )
  {
    return new void*( 0 );
  }

  void*
  PointerType::fNewCopy( const Type*, const void* obj )
  {
    return new void*( *(void**)obj );
  }

  void
  PointerType::fDelObj( const Type*, void* obj )
  {
    delete static_cast<void**>(obj);
  }

  const Type&
  PointerType::getElmType( std::size_t idx ) const
  {
    assert( pointee_ != 0 );
    return *pointee_;
  }

  void*
  PointerType::getElmAddr( void* obj, std::size_t idx ) const
  {
    return *(void**)obj;
  }

  unsigned long
  PointerType::hash( void ) const
  {
    unsigned long ret = ID_PTR;
    assert( pointee_ != 0 );
    updateHash( ret, pointee_->hash() );
    return ret;
  }

  bool
  PointerType::operator==( const Type& type ) const
  {
    if ( type.getId() != ID_PTR )
      return false;

    assert( pointee_ != 0 );
    assert( static_cast<const PointerType&>(type).pointee_ != 0 );
    
    return *pointee_ == *static_cast<const PointerType&>(type).pointee_;
  }

} // namespace rfl