155 lines
6.3 KiB
C
155 lines
6.3 KiB
C
/*
|
|
* $Id$
|
|
*/
|
|
|
|
/*
|
|
Harbour Project source code
|
|
|
|
Harbour Compiler header
|
|
|
|
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 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_COMPILER_H_
|
|
#define HB_COMPILER_H_
|
|
|
|
#include "hbpp.h"
|
|
|
|
/* compiler related declarations */
|
|
|
|
/* locals, static, public variables support */
|
|
typedef struct _VAR
|
|
{
|
|
char * szName; /* variable name */
|
|
char * szAlias; /* variable alias namespace */
|
|
int iUsed; /* number of times used */
|
|
char cType; /* optional strong typing */
|
|
struct _VAR * pNext; /* pointer to next defined variable */
|
|
} VAR, * PVAR;
|
|
|
|
/* structure to hold a Clipper defined function */
|
|
typedef struct __FUNC /* functions definition support */
|
|
{
|
|
char * szName; /* name of a defined Clipper function */
|
|
char cScope; /* scope of a defined Clipper function */
|
|
BYTE bFlags; /* some flags we may need */
|
|
WORD wParamCount; /* number of declared parameters */
|
|
WORD wParamNum; /* current parameter number */
|
|
PVAR pLocals; /* pointer to local variables list */
|
|
PVAR pStatics; /* pointer to static variables list */
|
|
PVAR pFields; /* pointer to fields variables list */
|
|
PVAR pMemvars; /* pointer to memvar variables list */
|
|
BYTE * pCode; /* pointer to a memory block where pcode is stored */
|
|
ULONG lPCodeSize; /* total memory size for pcode */
|
|
ULONG lPCodePos; /* actual pcode offset */
|
|
int iStaticsBase; /* base for this function statics */
|
|
struct __FUNC * pOwner; /* pointer to the function/procedure that owns the codeblock */
|
|
struct __FUNC * pNext; /* pointer to the next defined function */
|
|
} _FUNC, * PFUNCTION;
|
|
|
|
/* structure to control all Clipper defined functions */
|
|
typedef struct
|
|
{
|
|
PFUNCTION pFirst; /* pointer to the first defined funtion */
|
|
PFUNCTION pLast; /* pointer to the last defined function */
|
|
int iCount; /* number of defined functions */
|
|
} FUNCTIONS;
|
|
|
|
/* compiler symbol support structure */
|
|
typedef struct _COMSYMBOL
|
|
{
|
|
char * szName; /* the name of the symbol */
|
|
char cScope; /* the scope of the symbol */
|
|
char cType;
|
|
struct _COMSYMBOL * pNext; /* pointer to the next defined symbol */
|
|
} COMSYMBOL, * PCOMSYMBOL;
|
|
|
|
/* symbol table support structures */
|
|
typedef struct
|
|
{
|
|
PCOMSYMBOL pFirst; /* pointer to the first defined symbol */
|
|
PCOMSYMBOL pLast; /* pointer to the last defined symbol */
|
|
int iCount; /* number of defined symbols */
|
|
} SYMBOLS;
|
|
|
|
/* locals, static, public variables support */
|
|
typedef struct _STACK_VAL_TYPE
|
|
{
|
|
char cType; /* type of stack value */
|
|
struct _STACK_VAL_TYPE * pPrev; /* pointer to previous stack value's type */
|
|
} STACK_VAL_TYPE, * PSTACK_VAL_TYPE;
|
|
|
|
extern PFUNCTION GetFunction( char * szFunName ); /* locates a previously defined function */
|
|
extern WORD GetFunctionPos( char * szSymbolName ); /* returns the index + 1 of a function on the functions defined list */
|
|
|
|
extern void * hb_xgrab( ULONG lSize ); /* allocates memory, exists on failure */
|
|
extern void * hb_xrealloc( void * pMem, ULONG lSize ); /* reallocates memory */
|
|
extern void hb_xfree( void * pMem ); /* frees memory */
|
|
|
|
char * yy_strdup( char * p ); /* this will exit if there is not enough memory */
|
|
char * yy_strupr( char * p );
|
|
|
|
#if 0
|
|
static void __yy_memcpy( char * from, char * to, int count ); /* Bison prototype */
|
|
#endif
|
|
|
|
extern WORD FixSymbolPos( WORD ); /* converts symbol's compile-time position into generation-time position */
|
|
extern PFUNCTION GetFuncall( char * szFunName ); /* locates a previously defined called function */
|
|
extern PVAR GetVar( PVAR pVars, WORD wOrder ); /* returns a variable if defined or zero */
|
|
extern PCOMSYMBOL GetSymbol( char *, WORD * ); /* returns a symbol pointer from the symbol table */
|
|
extern PCOMSYMBOL GetSymbolOrd( WORD ); /* returns a symbol based on its index on the symbol table */
|
|
extern PFUNCTION KillFunction( PFUNCTION ); /* releases all memory allocated by function and returns the next one */
|
|
extern PCOMSYMBOL KillSymbol( PCOMSYMBOL ); /* releases all memory allocated by symbol and returns the next one */
|
|
|
|
extern FUNCTIONS functions, funcalls;
|
|
extern PFUNCTION _pInitFunc;
|
|
extern SYMBOLS symbols;
|
|
extern PHB_FNAME _pFileName;
|
|
extern BOOL _bQuiet;
|
|
extern BOOL _bStartProc;
|
|
extern char _szPrefix[ 20 ]; /* holds the prefix added to the generated symbol init function name (in C output currently) */
|
|
|
|
extern char * _szCErrors[];
|
|
|
|
#define VS_LOCAL 1
|
|
#define VS_STATIC 2
|
|
#define VS_FIELD 4
|
|
#define VS_PARAMETER 8
|
|
#define VS_PRIVATE 64
|
|
#define VS_PUBLIC 128
|
|
#define VS_MEMVAR ( VS_PUBLIC | VS_PRIVATE )
|
|
|
|
/*
|
|
* flags for bFlags member
|
|
*/
|
|
#define FUN_STATEMENTS 1 /* Function have at least one executable statement */
|
|
#define FUN_USES_STATICS 2 /* Function uses static variables */
|
|
#define FUN_PROCEDURE 4 /* This is a procedure that shouldn't return value */
|
|
#define FUN_ILLEGAL_INIT 8 /* Attempt to initialize static variable with a function call */
|
|
#define FUN_USES_LOCAL_PARAMS 16 /* parameters are declared using () */
|
|
|
|
#endif /* HB_COMPILER_H_ */
|