d495e5ad00
* harbour/bin/hb-func.sh
* added support -go[0-3] and other -g* switches to xhb* scripts
* harbour/include/hbapi.h
+ added ISSYMBOL() macro
* formatting
* harbour/include/hbapirdd.h
* changed definition of SUPERTABLE for optional dynamic overloading
this modification will not effect existing code
* harbour/include/hbrddfpt.h
* harbour/source/rdd/dbffpt/dbffpt1.c
* added support for NIL value in SIX3 FPT files
* harbour/include/hbcomp.h
* harbour/source/compiler/harbour.c
* harbour/source/compiler/genc.c
* harbour/source/compiler/gencli.c
* harbour/source/compiler/genhrb.c
* harbour/source/compiler/genjava.c
! message symbols are not function symbols - cleaned the HB_FS_MESSAGE
usage and fix the problem with registering static function in global
symbol table
* harbour/source/compiler/gencc.c
! fixed typo in compilation for platforms 64 bit LONG
* harbour/include/hbvmpub.h
* harbour/source/compiler/cmdcheck.c
* harbour/source/vm/asort.c
* harbour/source/vm/evalhb.c
* formatting
* harbour/source/rdd/dbcmd.c
* formatting and some minor clean-up
* harbour/source/rdd/workarea.c
* added default SYSNAME method
! fixed possible memory leak when APPEND failed in TRANSREC method
* harbour/source/rdd/hsx/hsx.c
! fixed using HS_ADD()/HS_REPLACE() without STRING/BLOCK expression
* harbour/source/rtl/cdpapi.c
* cleaned GCC4 warning
* harbour/source/rtl/do.c
* changed to keep parameter references in DO() function. Now it works
like IIF()/EVAL()
* harbour/source/vm/classes.c
* removed some definitions repared from hbapi.h
+ added support to passing function references as HB_IT_SYMBOL
* harbour/source/vm/dynlibhb.c
! fixed GPF in HB_LIBDO called with wrong parameter
* harbour/source/vm/hvm.c
! fixed hb_rddGetFieldValue() to not operate on unallocated stack area
it could cause unpredictable results when RDD had to access HVM, f.e.
for evaluation some pending relations. The whole code should be
carefully checked and to not operate on hb_stackTopItem() if other
functions are called to make the HVM fully reentrant.
+ added commented out support for passing HB_IT_SYMBOL as function
pointer
* formatting
* harbour/source/vm/itemapi.c
* return "S" for HB_IT_SYMBOL by hb_itemType()
* formatting
121 lines
3.8 KiB
C
121 lines
3.8 KiB
C
/*
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* $Id$
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*/
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/*
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* Harbour Project source code:
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* DO command/function
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*
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* Copyright 1999 Ryszard Glab <rglab@imid.med.pl>
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* www - http://www.harbour-project.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307 USA (or visit the web site http://www.gnu.org/).
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*
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* As a special exception, the Harbour Project gives permission for
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* additional uses of the text contained in its release of Harbour.
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*
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* The exception is that, if you link the Harbour libraries with other
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* files to produce an executable, this does not by itself cause the
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* resulting executable to be covered by the GNU General Public License.
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* Your use of that executable is in no way restricted on account of
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* linking the Harbour library code into it.
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*
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* This exception does not however invalidate any other reasons why
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* the executable file might be covered by the GNU General Public License.
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*
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* This exception applies only to the code released by the Harbour
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* Project under the name Harbour. If you copy code from other
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* Harbour Project or Free Software Foundation releases into a copy of
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* Harbour, as the General Public License permits, the exception does
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* not apply to the code that you add in this way. To avoid misleading
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* anyone as to the status of such modified files, you must delete
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* this exception notice from them.
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*
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* If you write modifications of your own for Harbour, it is your choice
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* whether to permit this exception to apply to your modifications.
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* If you do not wish that, delete this exception notice.
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*
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*/
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#include "hbapi.h"
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#include "hbapiitm.h"
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#include "hbapierr.h"
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#include "hbvm.h"
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#include "hbstack.h"
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/* NOTE: DO() as a function is a Harbour extension. [vszakats] */
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/* NOTE: use hb_stackItemFromBase( uiParam ) instead of
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* hb_param( uiParam, HB_IT_ANY ) to keep references to
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* parameters passed by refeence. [druzus]
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*/
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HB_FUNC( DO )
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{
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USHORT uiPCount = hb_pcount();
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if( uiPCount > 0 )
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{
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PHB_ITEM pItem = hb_param( 1, HB_IT_ANY );
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if( HB_IS_STRING( pItem ) )
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{
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PHB_DYNS pDynSym = hb_dynsymFindName( hb_itemGetCPtr( pItem ) );
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if( pDynSym )
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{
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hb_vmPushSymbol( hb_dynsymSymbol( pDynSym ) );
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hb_vmPushNil();
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}
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else
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{
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PHB_ITEM pArgsArray = hb_arrayBaseParams();
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hb_errRT_BASE( EG_NOFUNC, 1001, NULL, hb_itemGetCPtr( pItem ), 1, pArgsArray );
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hb_itemRelease( pArgsArray );
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return;
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}
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}
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else if( HB_IS_BLOCK( pItem ) )
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{
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hb_vmPushSymbol( &hb_symEval );
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hb_vmPush( pItem );
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}
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else if( HB_IS_SYMBOL( pItem ) )
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{
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hb_vmPushSymbol( hb_itemGetSymbol( pItem ) );
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hb_vmPushNil();
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}
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else
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uiPCount = 0;
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}
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if( uiPCount > 0 )
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{
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USHORT uiParam;
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for( uiParam = 2; uiParam <= uiPCount; uiParam++ )
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hb_vmPush( hb_stackItemFromBase( uiParam ) );
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hb_vmDo( uiPCount - 1 );
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}
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else
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{
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PHB_ITEM pArgsArray = hb_arrayBaseParams();
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hb_errRT_BASE_SubstR( EG_ARG, 3012, NULL, "DO", 1, pArgsArray );
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hb_itemRelease( pArgsArray );
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}
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}
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