tools/wrc/wpp_private.h

   1 /*
   2  * Copyright 1998 Bertho A. Stultiens (BS)
   3  * Copyright 2002 Alexandre Julliard
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  18  */
  19
  20 #ifndef __WINE_WPP_PRIVATE_H
  21 #define __WINE_WPP_PRIVATE_H
  22
  23 #include <stdio.h>
  24 #include <string.h>
  25 #include "wine/list.h"
  26
  27 extern void wpp_del_define( const char *name );
  28 extern void wpp_add_cmdline_define( const char *value );
  29 extern void wpp_set_debug( int lex_debug, int parser_debug, int msg_debug );
  30 extern void wpp_add_include_path( const char *path );
  31 extern char *wpp_find_include( const char *name, const char *parent_name );
  32 /* Return value == 0 means successful execution */
  33 extern int wpp_parse( const char *input, FILE *output );
  34
  35 struct pp_entry;        /* forward */
  36 /*
  37  * Include logic
  38  * A stack of files which are already included and
  39  * are protected in the #ifndef/#endif way.
  40  */
  41 typedef struct includelogicentry {
  42         struct list entry;
  43         struct pp_entry *ppp;           /* The define which protects the file */
  44         char            *filename;      /* The filename of the include */
  45 } includelogicentry_t;
  46
  47 /*
  48  * The expansiontext of a macro
  49  */
  50 typedef enum {
  51         exp_text,       /* Simple text substitution */
  52         exp_concat,     /* Concat (##) operator requested */
  53         exp_stringize,  /* Stringize (#) operator requested */
  54         exp_subst       /* Substitute argument */
  55 } def_exp_t;
  56
  57 typedef struct mtext {
  58         struct mtext    *next;
  59         struct mtext    *prev;
  60         def_exp_t       type;
  61         union {
  62                 char    *text;
  63                 int     argidx;         /* For exp_subst and exp_stringize reference */
  64         } subst;
  65 } mtext_t;
  66
  67 /*
  68  * The define descriptor
  69  */
  70 typedef enum {
  71         def_none,       /* Not-a-define; used as return value */
  72         def_define,     /* Simple defines */
  73         def_macro,      /* Macro defines */
  74         def_special     /* Special expansions like __LINE__ and __FILE__ */
  75 } def_type_t;
  76
  77 typedef struct pp_entry {
  78         struct list entry;
  79         def_type_t      type;           /* Define or macro */
  80         char            *ident;         /* The key */
  81         char            **margs;        /* Macro arguments array or NULL if none */
  82         int             nargs;
  83         union {
  84                 mtext_t *mtext;         /* The substitution sequence or NULL if none */
  85                 char    *text;
  86         } subst;
  87         int             expanding;      /* Set when feeding substitution into the input */
  88         char            *filename;      /* Filename where it was defined */
  89         int             linenumber;     /* Linenumber where it was defined */
  90         includelogicentry_t *iep;       /* Points to the include it protects */
  91 } pp_entry_t;
  92
  93
  94 /*
  95  * If logic
  96  */
  97 #define MAXIFSTACK      64      /* If this isn't enough you should alter the source... */
  98
  99 typedef enum {
 100         if_false,
 101         if_true,
 102         if_elif,
 103         if_elsefalse,
 104         if_elsetrue,
 105         if_ignore,
 106         if_error
 107 } pp_if_state_t;
 108
 109
 110 /*
 111  * Trace the include files to prevent double reading.
 112  * This save 20..30% of processing time for most stuff
 113  * that uses complex includes.
 114  * States:
 115  * -1   Don't track or seen junk
 116  *  0   New include, waiting for "#ifndef __xxx_h"
 117  *  1   Seen #ifndef, waiting for "#define __xxx_h ..."
 118  *  2   Seen #endif, waiting for EOF
 119  */
 120 typedef struct
 121 {
 122     int state;
 123     char *ppp;             /* The define to be set from the #ifndef */
 124     int ifdepth;           /* The level of ifs at the #ifdef */
 125     int seen_junk;         /* Set when junk is seen */
 126 } include_state_t;
 127
 128 #define SIZE_INT        1
 129 #define SIZE_LONG       2
 130 #define SIZE_LONGLONG   3
 131 #define SIZE_MASK       0x00ff
 132 #define FLAG_SIGNED     0x0100
 133
 134 typedef enum {
 135         cv_sint   = SIZE_INT + FLAG_SIGNED,
 136         cv_uint   = SIZE_INT,
 137         cv_slong  = SIZE_LONG + FLAG_SIGNED,
 138         cv_ulong  = SIZE_LONG,
 139         cv_sll    = SIZE_LONGLONG + FLAG_SIGNED,
 140         cv_ull    = SIZE_LONGLONG
 141 } ctype_t;
 142
 143 typedef struct cval {
 144         ctype_t type;
 145         union {
 146                 int             si;
 147                 unsigned int    ui;
 148                 long            sl;
 149                 unsigned long   ul;
 150                 __int64         sll;
 151                 unsigned __int64 ull;
 152         } val;
 153 } cval_t;
 154
 155
 156
 157 pp_entry_t *pplookup(const char *ident);
 158 pp_entry_t *pp_add_define(const char *def, const char *text);
 159 pp_entry_t *pp_add_macro(char *ident, char *args[], int nargs, mtext_t *exp);
 160 void pp_del_define(const char *name);
 161 void *pp_open_include(const char *name, int type, const char *parent_name, char **newpath);
 162 void pp_push_if(pp_if_state_t s);
 163 void pp_next_if_state(int);
 164 pp_if_state_t pp_pop_if(void);
 165 pp_if_state_t pp_if_state(void);
 166 int pp_get_if_depth(void);
 167
 168 int ppy_error(const char *s, ...) __attribute__((format (printf, 1, 2)));
 169 int ppy_warning(const char *s, ...) __attribute__((format (printf, 1, 2)));
 170
 171 /* current preprocessor state */
 172 /* everything is in this structure to avoid polluting the global symbol space */
 173 struct pp_status
 174 {
 175     char *input;        /* current input file name */
 176     FILE *file;         /* current input file descriptor */
 177     int line_number;    /* current line number */
 178     int char_number;    /* current char number in line */
 179     int debug;          /* debug messages flag */
 180 };
 181
 182 extern struct pp_status pp_status;
 183 extern include_state_t pp_incl_state;
 184 extern int pedantic;
 185
 186 /*
 187  * From ppl.l
 188  */
 189 extern FILE *ppy_in;
 190 extern FILE *ppy_out;
 191 extern char *ppy_text;
 192 extern int pp_flex_debug;
 193 int ppy_lex(void);
 194
 195 void pp_do_include(char *fname, int type);
 196 void pp_push_ignore_state(void);
 197 void pp_pop_ignore_state(void);
 198
 199 /*
 200  * From ppy.y
 201  */
 202 int ppy_parse(void);
 203 extern int ppy_debug;
 204
 205 #endif  /* __WINE_WPP_PRIVATE_H */