Files
harbour-core/harbour/include/hbmacro.h
2000-03-22 12:39:13 +00:00

143 lines
5.4 KiB
C

/*
* $Id$
*/
/*
* Harbour Project source code:
* Header file for the Macro compiler
*
* Copyright 1999 Ryszard Glab
* 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 of the License, or
* (at your option) any later version, with one exception:
*
* The exception is that if you link the Harbour Runtime Library (HRL)
* and/or the Harbour Virtual Machine (HVM) 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 HRL
* and/or HVM code into it.
*
* 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 program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA (or visit
* their web site at http://www.gnu.org/).
*
*/
#ifndef HB_MACRO_H_
#define HB_MACRO_H_
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <limits.h>
#include <ctype.h>
#include <time.h>
/* Standard parameters passed to macro aware functions
*/
#define HB_MACRO_DECL void * pMacro
#define HB_MACRO_PARAM pMacro
#include "hbapi.h"
#include "hbapiitm.h"
#include "hbapierr.h"
#include "hbvm.h"
#include "hbexprop.h"
#include "hbpcode.h"
#if defined(__cplusplus)
extern "C" {
#endif
/* flags for compilation process
*/
#define HB_MACRO_GEN_PUSH 1 /* generate PUSH pcodes */
#define HB_MACRO_GEN_POP 2 /* generate POP pcodes */
#define HB_MACRO_GEN_ALIASED 4 /* force aliased variable */
#define HB_MACRO_GEN_TYPE 8 /* check the type of expression (from TYPE() function) */
#define HB_MACRO_DEALLOCATE 128 /* macro structure is allocated on the heap */
/* values returned from compilation process
*/
#define HB_MACRO_OK 0 /* macro compiled successfully */
#define HB_MACRO_FAILURE 1 /* syntax error */
/* additional status of compilation
*/
#define HB_MACRO_CONT 1 /* everything is OK so far */
#define HB_MACRO_TOO_COMPLEX 2 /* compiled expression is too complex */
#define HB_MACRO_UDF 4 /* code uses UDF function (info used by TYPE function) */
#define HB_MACRO_UNKN_SYM 8 /* requested symbol was not found in runtime symbol table */
/* Global functions
*/
extern void hb_macroError( int, HB_MACRO_DECL );
extern int hb_compParse( HB_MACRO_PTR );
extern void hb_compGenPCode1( BYTE, HB_MACRO_DECL );
extern void hb_compGenPCode3( BYTE, BYTE, BYTE, HB_MACRO_DECL );
extern void hb_compGenPCodeN( BYTE * pBuffer, ULONG ulSize, HB_MACRO_DECL );
extern void hb_compGenJumpHere( ULONG, HB_MACRO_DECL );
/* Size of pcode buffer incrementation
*/
#define HB_PCODE_SIZE 512
/* Bison requires (void *) pointer - some code needs HB_MACRO_PTR pointer
*/
#define HB_MACRO_DATA ( (HB_MACRO_PTR) HB_MACRO_PARAM )
#define HB_PCODE_DATA ( HB_MACRO_DATA->pCodeInfo )
/* Declarations for functions macro.c */
extern int hb_compLocalVarGetPos( char * szVarName, HB_MACRO_DECL );
extern ULONG hb_compGenJump( LONG lOffset, HB_MACRO_DECL );
extern ULONG hb_compGenJumpFalse( LONG lOffset, HB_MACRO_DECL );
extern void hb_compGenJumpThere( ULONG ulFrom, ULONG ulTo, HB_MACRO_DECL );
extern void hb_compGenJumpHere( ULONG ulOffset, HB_MACRO_DECL );
extern ULONG hb_compGenJumpTrue( LONG lOffset, HB_MACRO_DECL );
extern void hb_compMemvarGenPCode( BYTE bPCode, char * szVarName, HB_MACRO_DECL );
extern void hb_compGenPushSymbol( char * szSymbolName, int isFunction, HB_MACRO_DECL );
extern void hb_compGenPushLong( long lNumber, HB_MACRO_DECL );
extern void hb_compGenMessage( char * szMsgName, HB_MACRO_DECL );
extern void hb_compGenMessageData( char * szMsg, HB_MACRO_DECL );
extern void hb_compGenPopVar( char * szVarName, HB_MACRO_DECL );
extern void hb_compGenPopAliasedVar( char * szVarName,
BOOL bPushAliasValue,
char * szAlias,
long lWorkarea, HB_MACRO_DECL );
extern void hb_compGenPushVar( char * szVarName, HB_MACRO_DECL );
extern void hb_compGenPushVarRef( char * szVarName, HB_MACRO_DECL );
extern void hb_compGenPushAliasedVar( char * szVarName,
BOOL bPushAliasValue,
char * szAlias,
long lWorkarea, HB_MACRO_DECL );
extern void hb_compGenPushLogical( int iTrueFalse, HB_MACRO_DECL );
extern void hb_compGenPushDouble( double dNumber, BYTE bDec, HB_MACRO_DECL );
extern void hb_compGenPushFunCall( char * szFunName, HB_MACRO_DECL );
extern void hb_compGenPushString( char * szText, ULONG ulStrLen, HB_MACRO_DECL );
extern void hb_compGenPCode1( BYTE byte, HB_MACRO_DECL );
extern void hb_compGenPCode3( BYTE byte1, BYTE byte2, BYTE byte3, HB_MACRO_DECL );
extern void hb_compGenPCodeN( BYTE * pBuffer, ULONG ulSize, HB_MACRO_DECL );
extern void hb_compCodeBlockStart( HB_MACRO_DECL );
extern void hb_compCodeBlockEnd( HB_MACRO_DECL );
#if defined(__cplusplus)
}
#endif
#endif /* HB_MACRO_H_ */