harbour-core/harbour/source/vm/proc.c

/*
 * $Id$
 */

/*
 * Harbour Project source code:
 * PROCNAME(), PROCLINE() and PROCFILE() functions
 *
 * Copyright 1999 Antonio Linares <alinares@fivetech.com>
 * www - http://www.harbour-project.org
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * This program 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 software; see the file COPYING.  If not, write to
 * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
 * Boston, MA 02111-1307 USA (or visit the web site http://www.gnu.org/).
 *
 * As a special exception, the Harbour Project gives permission for
 * additional uses of the text contained in its release of Harbour.
 *
 * The exception is that, if you link the Harbour libraries with other
 * files to produce an executable, this does not by itself cause the
 * resulting executable to be covered by the GNU General Public License.
 * Your use of that executable is in no way restricted on account of
 * linking the Harbour library code into it.
 *
 * This exception does not however invalidate any other reasons why
 * the executable file might be covered by the GNU General Public License.
 *
 * This exception applies only to the code released by the Harbour
 * Project under the name Harbour.  If you copy code from other
 * Harbour Project or Free Software Foundation releases into a copy of
 * Harbour, as the General Public License permits, the exception does
 * not apply to the code that you add in this way.  To avoid misleading
 * anyone as to the status of such modified files, you must delete
 * this exception notice from them.
 *
 * If you write modifications of your own for Harbour, it is your choice
 * whether to permit this exception to apply to your modifications.
 * If you do not wish that, delete this exception notice.
 *
 */

/*
 * The following parts are Copyright of the individual authors.
 * www - http://www.harbour-project.org
 *
 * Copyright 1999-2001 Viktor Szakats <viktor.szakats@syenar.hu>
 *    PROCFILE()
 *
 * Copyright 2001 JFL (Mafact) <jfl@mafact.com>
 *    Adding the MethodName() just calling Procname()
 *    call to hb_objGetRealClsName in case of object
 *    Special treatment in case of Object and __Eval (only for methodname)
 *    skipping block and adding (b) before the method name
 *
 * See doc/license.txt for licensing terms.
 *
 */

#include "hbapi.h"
#include "hbstack.h"

#ifdef HB_EXTENSION

HB_FUNC( HB_METHODNAME )
{
   char szName[ HB_SYMBOL_NAME_LEN + HB_SYMBOL_NAME_LEN + 2 ];

   hb_retc( hb_procname( hb_parni( 1 ) + 1, szName, TRUE ) );
}

#endif

HB_FUNC( PROCNAME )
{
   char szName[ HB_SYMBOL_NAME_LEN + HB_SYMBOL_NAME_LEN + 2 ];

   hb_retc( hb_procname( hb_parni( 1 ) + 1, szName, FALSE ) );
}

HB_FUNC( PROCLINE )
{
   int iLevel = hb_parni( 1 ) + 1;  /* we are already inside ProcName() */
   PHB_ITEM * pBase = hb_stack.pBase;

   while( ( iLevel-- > 0 ) && pBase != hb_stack.pItems )
      pBase = hb_stack.pItems + ( *pBase )->item.asSymbol.stackbase;

   if( iLevel < 0 )
      hb_retni( ( *pBase )->item.asSymbol.lineno );
   else
      hb_retni( 0 );
}

#ifdef HB_C52_UNDOC

/* NOTE: Clipper undocumented function, which always returns an empty
         string. [vszakats] */

HB_FUNC( PROCFILE )
{
   hb_retc( NULL );
}

#endif

/* NOTE: szName size must be an at least:
         HB_SYMBOL_NAME_LEN + HB_SYMBOL_NAME_LEN + 2 [vszakats] */

char * hb_procname( int iLevel, char * szName, BOOL bSkipBlock  )
{
   PHB_ITEM * pBase = hb_stack.pBase;
   char * szTstName;
   BOOL lcb = FALSE;
   int iLev = iLevel;

   while( ( iLevel-- > 0 ) && pBase != hb_stack.pItems )
      pBase = hb_stack.pItems + ( *pBase )->item.asSymbol.stackbase;

   szTstName = ( *pBase )->item.asSymbol.value->szName ;

   if( bSkipBlock )
   {
      /* Is it an inline method ? if so back one more ... */
      if( ( strcmp( szTstName, "__EVAL" ) == 0 ) &&  pBase != hb_stack.pItems )
      {
         pBase = hb_stack.pItems + ( *pBase )->item.asSymbol.stackbase;
         lcb = TRUE ;
      }
   }

   if( iLevel < 0 )
   {
      if( ( *( pBase + 1 ) )->type == HB_IT_ARRAY )  /* it is a method name */
      {
         strcpy( szName, hb_objGetRealClsName( *( pBase + 1 ), ( *pBase )->item.asSymbol.value->szName ) );

         if( lcb )
            strcat( szName, ":(b)" );
         else
            strcat( szName, ":" );

         strcat( szName, ( *pBase )->item.asSymbol.value->szName );
      }
      else
      {
         if( lcb ) /* Back to standart code block */
         {
            pBase = hb_stack.pBase;
            while( ( iLev-- > 0 ) && pBase != hb_stack.pItems )
               pBase = hb_stack.pItems + ( *pBase )->item.asSymbol.stackbase;
         }

         if( ( strcmp( ( *pBase )->item.asSymbol.value->szName, "EVAL" ) == 0 ) )
         {
            strcpy( szName, "(b)" );
            if( ( *( pBase + 1 ) )->type == HB_IT_BLOCK )
            {
               PHB_SYMB pSymb;
               pSymb = ( *( pBase + 1 ) )->item.asBlock.value->pDefSymb;
               strcat( szName, pSymb->szName );
            }
            else
               strcat( szName, ( *pBase )->item.asSymbol.value->szName );
         }
         else
            strcpy( szName, ( *pBase )->item.asSymbol.value->szName );
      }
   }
   else
      strcpy( szName, "" );

   return szName;
}