357 lines
18 KiB
C
357 lines
18 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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* Header file for the Harbour Compiler
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*
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* Copyright 1999 Antonio Linares <alinares@fivetech.com>
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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 of the License, or
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* (at your option) any later version, with one exception:
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*
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* The exception is that if you link the Harbour Runtime Library (HRL)
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* and/or the Harbour Virtual Machine (HVM) with other files to produce
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* an executable, this does not by itself cause the resulting executable
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* to be covered by the GNU General Public License. Your use of that
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* executable is in no way restricted on account of linking the HRL
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* and/or HVM code into it.
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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 program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA (or visit
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* their web site at http://www.gnu.org/).
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*
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*/
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#ifndef HB_COMP_H_
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#define HB_COMP_H_
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <limits.h>
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#include <ctype.h>
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#include "hbsetup.h"
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#include "hbapi.h"
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#include "hbpcode.h" /* pcode values */
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#include "hberrors.h"
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#include "hbpp.h"
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#include "hbver.h"
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#include "hbexprop.h"
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/* compiler related declarations */
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/* Output types */
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typedef enum
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{
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LANG_C, /* C language (by default) <file.c> */
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LANG_OBJ32, /* DOS/Windows 32 bits <file.obj> */
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LANG_JAVA, /* Java <file.java> */
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LANG_PASCAL, /* Pascal <file.pas> */
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LANG_RESOURCES, /* Resources <file.rc> */
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LANG_PORT_OBJ /* Portable objects <file.hrb> */
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} LANGUAGES; /* supported Harbour output languages */
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/* #include support */
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typedef struct
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{
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FILE * handle; /* handle of the opened file */
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void * pBuffer; /* file buffer */
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int iBuffer; /* current position in file buffer */
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int lenBuffer; /* current length of data in file buffer */
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char * szFileName; /* name of the file */
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void * pPrev; /* pointer to the previous opened file */
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void * pNext; /* pointer to the next opened file */
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int iLine; /* currently processed line number */
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} _FILE, * PFILE; /* structure to hold an opened PRG or CH */
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/* structure to control several opened PRGs and CHs */
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typedef struct
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{
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PFILE pLast; /* pointer to the last opened file */
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int iFiles; /* number of files currently opened */
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} FILES;
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/* locals, static, public variables support */
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typedef struct _VAR
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{
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char * szName; /* variable name */
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char * szAlias; /* variable alias namespace */
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int iUsed; /* number of times used */
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char cType; /* optional strong typing */
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struct _VAR * pNext; /* pointer to next defined variable */
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} VAR, * PVAR;
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/* pcode chunks bytes size */
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#define HB_PCODE_CHUNK 100
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/* structure to hold a Clipper defined function */
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typedef struct __FUNC
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{
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char * szName; /* name of a defined Clipper function */
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char cScope; /* scope of a defined Clipper function */
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BYTE bFlags; /* some flags we may need */
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USHORT wParamCount; /* number of declared parameters */
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USHORT wParamNum; /* current parameter number */
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PVAR pLocals; /* pointer to local variables list */
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PVAR pStatics; /* pointer to static variables list */
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PVAR pFields; /* pointer to fields variables list */
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PVAR pMemvars; /* pointer to memvar variables list */
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BYTE * pCode; /* pointer to a memory block where pcode is stored */
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ULONG lPCodeSize; /* total memory size for pcode */
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ULONG lPCodePos; /* actual pcode offset */
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int iStaticsBase; /* base for this function statics */
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struct __FUNC * pOwner; /* pointer to the function/procedure that owns the codeblock */
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struct __FUNC * pNext; /* pointer to the next defined function */
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} _FUNC, * PFUNCTION;
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/* structure to control all Clipper defined functions */
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typedef struct
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{
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PFUNCTION pFirst; /* pointer to the first defined funtion */
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PFUNCTION pLast; /* pointer to the last defined function */
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int iCount; /* number of defined functions */
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} FUNCTIONS;
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/* compiler symbol support structure */
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typedef struct _COMSYMBOL
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{
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char * szName; /* the name of the symbol */
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char cScope; /* the scope of the symbol */
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char cType;
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struct _COMSYMBOL * pNext; /* pointer to the next defined symbol */
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} COMSYMBOL, * PCOMSYMBOL;
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/* symbol table support structures */
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typedef struct
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{
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PCOMSYMBOL pFirst; /* pointer to the first defined symbol */
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PCOMSYMBOL pLast; /* pointer to the last defined symbol */
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int iCount; /* number of defined symbols */
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} SYMBOLS;
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#define VS_LOCAL 1
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#define VS_STATIC 2
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#define VS_FIELD 4
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#define VS_PARAMETER 8
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#define VS_PRIVATE 64
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#define VS_PUBLIC 128
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#define VS_MEMVAR ( VS_PUBLIC | VS_PRIVATE )
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/*
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* flags for bFlags member
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*/
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#define FUN_STATEMENTS 1 /* Function have at least one executable statement */
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#define FUN_USES_STATICS 2 /* Function uses static variables */
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#define FUN_PROCEDURE 4 /* This is a procedure that shouldn't return value */
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#define FUN_BREAK_CODE 8 /* last statement breaks execution flow */
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#define FUN_USES_LOCAL_PARAMS 16 /* parameters are declared using () */
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#define FUN_WITH_RETURN 32 /* there was RETURN statement in previous line */
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extern void hb_compFunctionAdd( char * szFunName, HB_SYMBOLSCOPE cScope, int iType ); /* starts a new Clipper language function definition */
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extern PFUNCTION hb_compFunctionFind( char * szFunName ); /* locates a previously defined function */
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extern USHORT hb_compFunctionGetPos( char * szSymbolName ); /* returns the index + 1 of a function on the functions defined list */
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extern PFUNCTION hb_compFunctionKill( PFUNCTION ); /* releases all memory allocated by function and returns the next one */
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extern void hb_compAnnounce( char * );
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extern PFUNCTION hb_compFunCallAdd( char * szFuntionName );
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extern PFUNCTION hb_compFunCallFind( char * szFunName ); /* locates a previously defined called function */
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extern void hb_compFunCallCheck( char *, int );
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extern void hb_compVariableAdd( char * szVarName, char cType ); /* add a new param, local, static variable to a function definition or a public or private */
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extern PVAR hb_compVariableFind( PVAR pVars, USHORT wOrder ); /* returns a variable if defined or zero */
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extern PCOMSYMBOL hb_compSymbolAdd( char *, USHORT * );
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extern PCOMSYMBOL hb_compSymbolKill( PCOMSYMBOL ); /* releases all memory allocated by symbol and returns the next one */
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extern PCOMSYMBOL hb_compSymbolFind( char *, USHORT * ); /* returns a symbol pointer from the symbol table */
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extern PCOMSYMBOL hb_compSymbolGetPos( USHORT ); /* returns a symbol based on its index on the symbol table */
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extern USHORT hb_compSymbolFixPos( USHORT ); /* converts symbol's compile-time position into generation-time position */
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extern void hb_compGenBreak( void ); /* generate code for BREAK statement */
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extern void hb_compExternGen( void ); /* generates the symbols for the EXTERN names */
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extern void hb_compExternAdd( char * szExternName ); /* defines a new extern name */
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#ifdef HB_MACRO_SUPPORT
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extern BOOL hb_compVariableMacroCheck( char *, HB_MACRO_DECL ); /* checks if passed variable can be used in macro */
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extern ULONG hb_compGenJump( LONG, HB_MACRO_DECL ); /* generates the pcode to jump to a specific offset */
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extern ULONG hb_compGenJumpFalse( LONG, HB_MACRO_DECL ); /* generates the pcode to jump if false */
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extern ULONG hb_compGenJumpTrue( LONG, HB_MACRO_DECL ); /* generates the pcode to jump if true */
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extern void hb_compGenJumpHere( ULONG, HB_MACRO_DECL ); /* returns the pcode pos where to set a jump offset */
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extern void hb_compGenJumpThere( ULONG, ULONG, HB_MACRO_DECL ); /* sets a jump offset */
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extern void hb_compGenMessage( char *, HB_MACRO_DECL ); /* sends a message to an object */
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extern void hb_compGenMessageData( char *, HB_MACRO_DECL ); /* generates an underscore-symbol name for a data assignment */
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extern void hb_compGenPopVar( char *, HB_MACRO_DECL ); /* generates the pcode to pop a value from the virtual machine stack onto a variable */
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extern void hb_compGenPushDouble( double , BYTE, HB_MACRO_DECL ); /* Pushes a number on the virtual machine stack */
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extern void hb_compGenPushFunCall( char *, HB_MACRO_DECL ); /* generates the pcode to push function's call */
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extern void hb_compGenPushVar( char *, HB_MACRO_DECL ); /* generates the pcode to push a variable value to the virtual machine stack */
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extern void hb_compGenPushVarRef( char *, HB_MACRO_DECL ); /* generates the pcode to push a variable by reference to the virtual machine stack */
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extern void hb_compGenPushLogical( int, HB_MACRO_DECL ); /* pushes a logical value on the virtual machine stack */
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extern void hb_compGenPushLong( long, HB_MACRO_DECL ); /* Pushes a long number on the virtual machine stack */
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extern void hb_compGenPushNil( HB_MACRO_DECL ); /* Pushes nil on the virtual machine stack */
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extern void hb_compGenPushString( char *, ULONG, HB_MACRO_DECL ); /* Pushes a string on the virtual machine stack */
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extern void hb_compGenPushSymbol( char *, HB_MACRO_DECL ); /* Pushes a symbol on to the Virtual machine stack */
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extern void hb_compGenPushAliasedVar( char *, BOOL, char *, long, HB_MACRO_DECL );
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extern void hb_compGenPopAliasedVar( char *, BOOL, char *, long, HB_MACRO_DECL );
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extern void hb_compGenPushFunRef( char *, HB_MACRO_DECL );
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extern void hb_compGenPCode1( BYTE, HB_MACRO_DECL ); /* generates 1 byte of pcode */
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extern void hb_compGenPCode3( BYTE, BYTE, BYTE, HB_MACRO_DECL ); /* generates 3 bytes of pcode */
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extern void hb_compGenPCodeN( BYTE * pBuffer, ULONG ulSize, HB_MACRO_DECL ); /* copy bytes to a pcode buffer */
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/* Codeblocks */
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void hb_compCodeBlockStart( HB_MACRO_DECL ); /* starts a codeblock creation */
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void hb_compCodeBlockEnd( HB_MACRO_DECL ); /* end of codeblock creation */
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#define hb_compErrorType( p ) hb_macroError( EG_ARG, HB_MACRO_PARAM )
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#define hb_compErrorIndex( p ) hb_macroError( EG_BOUND, HB_MACRO_PARAM )
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#define hb_compErrorSyntax( p ) hb_macroError( EG_SYNTAX, HB_MACRO_PARAM )
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#define hb_compErrorLValue( p ) hb_macroError( EG_SYNTAX, HB_MACRO_PARAM )
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#define hb_compErrorBound( p ) hb_macroError( EG_BOUND, HB_MACRO_PARAM )
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#define hb_compErrorAlias( p ) hb_macroError( EG_NOALIAS, HB_MACRO_PARAM )
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#define hb_compErrorDuplVar( c ) hb_macroError( EG_SYNTAX, HB_MACRO_PARAM )
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#define hb_compWarnMeaningless( p )
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#else /* HB_MACRO_SUPPORT */
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extern BOOL hb_compVariableMacroCheck( char * ); /* checks if passed variable can be used in macro */
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extern ULONG hb_compGenJump( LONG ); /* generates the pcode to jump to a specific offset */
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extern ULONG hb_compGenJumpFalse( LONG ); /* generates the pcode to jump if false */
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extern ULONG hb_compGenJumpTrue( LONG ); /* generates the pcode to jump if true */
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extern void hb_compGenJumpHere( ULONG ); /* returns the pcode pos where to set a jump offset */
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extern void hb_compGenJumpThere( ULONG, ULONG ); /* sets a jump offset */
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extern void hb_compLinePush( void ); /* generates the pcode with the currently compiled source code line */
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extern void hb_compLinePushIfDebugger( void ); /* generates the pcode with the currently compiled source code line */
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extern void hb_compLinePushIfInside( void ); /* generates the pcode with the currently compiled source code line */
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extern void hb_compGenMessage( char * szMsgName ); /* sends a message to an object */
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extern void hb_compGenMessageData( char * szMsg ); /* generates an underscore-symbol name for a data assignment */
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extern void hb_compGenPopVar( char * szVarName ); /* generates the pcode to pop a value from the virtual machine stack onto a variable */
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extern void hb_compGenPushDouble( double fNumber, BYTE bDec ); /* Pushes a number on the virtual machine stack */
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extern void hb_compGenPushFunCall( char * ); /* generates the pcode to push function's call */
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extern void hb_compGenPushVar( char * szVarName ); /* generates the pcode to push a variable value to the virtual machine stack */
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extern void hb_compGenPushVarRef( char * szVarName ); /* generates the pcode to push a variable by reference to the virtual machine stack */
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extern void hb_compGenPushInteger( int iNumber ); /* Pushes a integer number on the virtual machine stack */
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extern void hb_compGenPushLogical( int iTrueFalse ); /* pushes a logical value on the virtual machine stack */
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extern void hb_compGenPushLong( long lNumber ); /* Pushes a long number on the virtual machine stack */
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extern void hb_compGenPushNil( void ); /* Pushes nil on the virtual machine stack */
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extern void hb_compGenPushString( char * szText, ULONG ulLen ); /* Pushes a string on the virtual machine stack */
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extern void hb_compGenPushSymbol( char * szSymbolName, int iIsFunction ); /* Pushes a symbol on to the Virtual machine stack */
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extern void hb_compGenPushAliasedVar( char *, BOOL, char *, long );
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extern void hb_compGenPopAliasedVar( char *, BOOL, char *, long );
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extern void hb_compGenPushFunRef( char * );
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extern void hb_compGenPCode1( BYTE ); /* generates 1 byte of pcode */
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extern void hb_compGenPCode3( BYTE, BYTE, BYTE ); /* generates 3 bytes of pcode */
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extern void hb_compGenPCodeN( BYTE * pBuffer, ULONG ulSize ); /* copy bytes to a pcode buffer */
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extern ULONG hb_compSequenceBegin( void );
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extern ULONG hb_compSequenceEnd( void );
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extern void hb_compSequenceFinish( ULONG, int );
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/* Codeblocks */
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void hb_compCodeBlockStart( void ); /* starts a codeblock creation */
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void hb_compCodeBlockEnd( void ); /* end of codeblock creation */
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/* support for FIELD declaration */
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extern void hb_compFieldSetAlias( char *, int );
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extern int hb_compFieldsCount( void );
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/* Static variables */
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extern void hb_compStaticDefStart( void );
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extern void hb_compStaticDefEnd( void );
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HB_EXPR_PTR hb_compErrorStatic( char *, HB_EXPR_PTR );
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HB_EXPR_PTR hb_compErrorType( HB_EXPR_PTR );
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HB_EXPR_PTR hb_compErrorIndex( HB_EXPR_PTR );
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HB_EXPR_PTR hb_compErrorSyntax( HB_EXPR_PTR );
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HB_EXPR_PTR hb_compErrorLValue( HB_EXPR_PTR );
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HB_EXPR_PTR hb_compErrorBound( HB_EXPR_PTR );
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HB_EXPR_PTR hb_compErrorAlias( HB_EXPR_PTR );
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extern void hb_compErrorDuplVar( char * );
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HB_EXPR_PTR hb_compWarnMeaningless( HB_EXPR_PTR );
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extern void hb_compChkCompilerSwitch( int, char * Args[] );
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extern void hb_compChkEnvironVar( char * );
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extern void hb_compChkCompileFileName( int, char * Args[] );
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extern void hb_compCheckPaths( void );
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extern void hb_compPrintUsage( char * );
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extern void hb_compPrintCredits( void );
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extern void hb_compPrintLogo( void );
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#endif /* HB_MACRO_SUPPORT */
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extern void hb_compGenError( char* _szErrors[], char cPrefix, int iError, char * szError1, char * szError2 );
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extern void hb_compGenWarning( char* _szWarnings[], char cPrefix, int iWarning, char * szWarning1, char * szWarning2);
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/* variable used by compiler
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*/
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extern int hb_comp_iLine;
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extern FUNCTIONS hb_comp_functions;
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extern FUNCTIONS hb_comp_funcalls;
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extern SYMBOLS hb_comp_symbols;
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extern PATHNAMES * hb_comp_pIncludePath;
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extern PFUNCTION hb_comp_pInitFunc;
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extern PHB_FNAME hb_comp_pFileName;
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extern BOOL hb_comp_bPPO;
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extern FILE * hb_comp_yyppo;
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extern BOOL hb_comp_bStartProc;
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extern BOOL hb_comp_bLineNumbers;
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extern BOOL hb_comp_bQuiet;
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extern BOOL hb_comp_bRestrictSymbolLength;
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extern BOOL hb_comp_bShortCuts;
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extern int hb_comp_iWarnings;
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extern BOOL hb_comp_bAnyWarning;
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extern BOOL hb_comp_bAutoMemvarAssume;
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extern BOOL hb_comp_bForceMemvars;
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extern BOOL hb_comp_bDebugInfo;
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extern char hb_comp_szPrefix[ 20 ];
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extern BOOL hb_comp_bGenCVerbose;
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extern int hb_comp_iExitLevel;
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extern int hb_comp_iFunctionCnt;
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extern char hb_comp_cVarType;
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extern int hb_comp_iVarScope;
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extern BOOL hb_comp_bDontGenLineNum;
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extern FILES hb_comp_files;
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extern int hb_comp_iStaticCnt;
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extern int hb_comp_iErrorCount;
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extern PHB_FNAME hb_comp_pOutPath;
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extern BOOL hb_comp_bCredits;
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extern BOOL hb_comp_bLogo;
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extern BOOL hb_comp_bSyntaxCheckOnly;
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extern int hb_comp_iLanguage;
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extern USHORT hb_comp_wSeqCounter;
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extern USHORT hb_comp_wForCounter;
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extern USHORT hb_comp_wIfCounter;
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extern USHORT hb_comp_wWhileCounter;
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extern USHORT hb_comp_wCaseCounter;
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extern char * hb_comp_szErrors[];
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extern char * hb_comp_szWarnings[];
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/* /ES command line setting types */
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#define HB_EXITLEVEL_DEFAULT 0
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#define HB_EXITLEVEL_SETEXIT 1
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#define HB_EXITLEVEL_DELTARGET 2
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#endif /* HB_COMP_H_ */
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