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harbour-core/harbour/include/hbapicls.h
Przemyslaw Czerpak d8813e5b29 2007-09-26 02:30 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl) 
* harbour/include/hbclass.ch
    + added:
         ON ERROR FUNCTION <FuncName>
         OPERATOR <op> FUNCTION <FuncName> <scope>

  * harbour/include/hbapicls.h
  * harbour/source/vm/classes.c
  * harbour/source/vm/hvm.c
    + added support for overloading right side $ operator

  * harbour/contrib/xhb/xhbfunc.c
    * rewritten xhb_ains() and xhb_adel() in C

  * harbour/contrib/xhb/xhb.ch
    * changed AINS() conversion to be xHarbour compatible

  * harbour/contrib/xhb/Makefile
    + added xhb.ch to PRG_HEADERS so it's installed automatically
      during 'make install'

  * harbour/contrib/xhb/Makefile
  + harbour/contrib/xhb/xhbmsgs.c
  * harbour/contrib/xhb/xhbcomp.prg
    + added support for $ operator used with hashes and arrays
      on right side working _exactly_ like in xHarbour.
    + added support for negative indexes in used in [] operator
      for array and strings.
      Please remember that standard harbour build (without
      HB_COMPAT_XHB flag) generate warning for negative indexes,
      if you wan to pacify them then instead of var[-1] use var[(-1)]
    + added support for assign string characters with [] index.
      Please remember that for standard harbour build (without
      HB_COMPAT_XHB flag) you have to use -ks compile time switch
      if you want to assign strings in such way because this feature
      needs different PCODE, f.e. try to compile this code:
         proc main()
            local s:="ABC"
            s[(-1)] := "*"
            ? s
         return
      with and without -ks switch
    + added support for accessing hash items using OO interface, f.e.:
         proc main()
            local h:={"ABC"=>123.45,"XYZ"=>567.89}
            ? h["ABC"], h["XYZ"]
            ? h:ABC, h:XYZ
            h:ABC+=1000
            h:XYZ:=-2000
            ? h:ABC, h:XYZ
         return

      All of the above extensions are written in C code so the speed
      overhead is very small. Harbour evaluates PCODE faster then xHarbour
      so in speed tests where above operators are executed in loop without
      any other code the xHarbour results with native support are comparable
      with Harbour ones where above operators are overloaded using scalar
      classes so in normal code you should not find any difference with
      one exception for assigning characters in very long strings.
2007-09-26 00:30:47 +00:00

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/*
* $Id$
*/
/*
* Harbour Project source code:
* Harbour class API
*
* Copyright 2006 Przemyslaw Czerpak <druzus / at / priv.onet.pl>
* 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.
*
*/
#ifndef HB_APICLS_H_
#define HB_APICLS_H_
#include "hbapi.h"
HB_EXTERN_BEGIN
#ifdef _HB_API_INTERNAL_
#define HB_OO_OP_PLUS 0
#define HB_OO_OP_MINUS 1
#define HB_OO_OP_MULT 2
#define HB_OO_OP_DIVIDE 3
#define HB_OO_OP_MOD 4
#define HB_OO_OP_POWER 5
#define HB_OO_OP_INC 6
#define HB_OO_OP_DEC 7
#define HB_OO_OP_EQUAL 8
#define HB_OO_OP_EXACTEQUAL 9
#define HB_OO_OP_NOTEQUAL 10
#define HB_OO_OP_LESS 11
#define HB_OO_OP_LESSEQUAL 12
#define HB_OO_OP_GREATER 13
#define HB_OO_OP_GREATEREQUAL 14
#define HB_OO_OP_ASSIGN 15
#define HB_OO_OP_INSTRING 16
#define HB_OO_OP_INCLUDE 17
#define HB_OO_OP_NOT 18
#define HB_OO_OP_AND 19
#define HB_OO_OP_OR 20
#define HB_OO_OP_ARRAYINDEX 21
#define HB_OO_OP_ENUMINDEX 22
#define HB_OO_OP_ENUMBASE 23
#define HB_OO_OP_ENUMVALUE 24
#define HB_OO_OP_ENUMSTART 25
#define HB_OO_OP_ENUMSKIP 26
#define HB_OO_OP_ENUMSTOP 27
#define HB_OO_MAX_OPERATOR 27
extern void hb_clsInit( void ); /* initialize Classy/OO system at HVM startup */
extern void hb_clsDoInit( void ); /* initialize Classy/OO system .prg functions */
extern void hb_clsReleaseAll( void ); /* releases all defined classes */
extern void hb_clsIsClassRef( void ); /* classes.c - mark all class internals as used */
extern BOOL hb_clsHasDestructor( USHORT uiClass );
extern PHB_SYMB hb_objGetMethod( PHB_ITEM pObject, PHB_SYMB pSymMsg, PHB_STACK_STATE pStack ); /* returns the method pointer of an object class */
extern BOOL hb_objGetVarRef( PHB_ITEM pObject, PHB_SYMB pMessage, PHB_STACK_STATE pStack ); /* create object variable reference */
extern BOOL hb_objHasOperator( PHB_ITEM pObject, USHORT uiOperator );
extern BOOL hb_objOperatorCall( USHORT uiOperator, HB_ITEM_PTR pResult, PHB_ITEM pObject, PHB_ITEM pMsgArg1, PHB_ITEM pMsgArg2 );
extern void hb_objDestructorCall( PHB_ITEM pObject );
#ifndef HB_NO_PROFILER
/* profiler for object management */
extern void hb_mthAddTime( ULONG ); /* profiler from classes.c */
#endif
#endif
/* class management */
HB_EXPORT extern const char * hb_clsName( USHORT uiClass );
HB_EXPORT extern const char * hb_clsFuncName( USHORT uiClass );
HB_EXPORT extern BOOL hb_clsIsParent( USHORT uiClass, const char * szParentName ); /* is a class handle inherited from szParentName Class ? */
HB_EXPORT extern USHORT hb_clsFindClass( const char * szClass, const char * szFunc );
/* object management */
HB_EXPORT extern USHORT hb_objGetClass( PHB_ITEM pItem ); /* get object class handle */
HB_EXPORT extern USHORT hb_objSetClass( PHB_ITEM pItem, const char * szClass, const char * szFunc ); /* get object class handle using class name and class function name */
HB_EXPORT extern const char * hb_objGetClsName( PHB_ITEM pObject ); /* retrieves an object class name */
HB_EXPORT extern const char * hb_objGetRealClsName( PHB_ITEM pObject, const char * szString ); /* retrieves an object class name for a specific message */
HB_EXPORT extern BOOL hb_objHasMsg( PHB_ITEM pObject, const char * szString ); /* returns TRUE/FALSE whether szString is an existing message for object */
HB_EXPORT extern BOOL hb_objHasMessage( PHB_ITEM pObject, PHB_DYNS pMessage );
HB_EXPORT extern PHB_ITEM hb_objSendMsg( PHB_ITEM pObj, const char *sMsg, ULONG ulArg, ... );
HB_EXPORT extern PHB_ITEM hb_objSendMessage( PHB_ITEM pObj, PHB_DYNS pMessage, ULONG ulArg, ... );
/* Harbour equivalent for Clipper internal __mdCreate() */
USHORT hb_clsCreate( USHORT usSize, const char * szClassName );
/* Harbour equivalent for Clipper internal __mdAdd() */
void hb_clsAdd( USHORT usClassH, const char * szMethodName, PHB_FUNC pFuncPtr );
/* Harbour equivalent for Clipper internal __mdAssociate() */
void hb_clsAssociate( USHORT usClassH );
HB_EXTERN_END
#endif /* HB_APICLS_H_ */
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