contrib/dtc/srcpos.h

   1 /*
   2  * Copyright 2007 Jon Loeliger, Freescale Semiconductor, Inc.
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License as
   6  * published by the Free Software Foundation; either version 2 of the
   7  * License, or (at your option) any later version.
   8  *
   9  *  This program is distributed in the hope that it will be useful,
  10  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  *  General Public License for more details.
  13  *
  14  *  You should have received a copy of the GNU General Public License
  15  *  along with this program; if not, write to the Free Software
  16  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
  17  *                                                                   USA
  18  */
  19
  20 #ifndef _SRCPOS_H_
  21 #define _SRCPOS_H_
  22
  23 /*
  24  * Augment the standard YYLTYPE with a filenum index into an
  25  * array of all opened filenames.
  26  */
  27
  28 #include <stdio.h>
  29
  30 struct dtc_file {
  31         char *dir;
  32         const char *name;
  33         FILE *file;
  34 };
  35
  36 #if ! defined(YYLTYPE) && ! defined(YYLTYPE_IS_DECLARED)
  37 typedef struct YYLTYPE {
  38     int first_line;
  39     int first_column;
  40     int last_line;
  41     int last_column;
  42     struct dtc_file *file;
  43 } YYLTYPE;
  44
  45 #define YYLTYPE_IS_DECLARED     1
  46 #define YYLTYPE_IS_TRIVIAL      1
  47 #endif
  48
  49 /* Cater to old parser templates. */
  50 #ifndef YYID
  51 #define YYID(n) (n)
  52 #endif
  53
  54 #define YYLLOC_DEFAULT(Current, Rhs, N)                                 \
  55     do                                                                  \
  56       if (YYID (N))                                                     \
  57         {                                                               \
  58           (Current).first_line   = YYRHSLOC (Rhs, 1).first_line;        \
  59           (Current).first_column = YYRHSLOC (Rhs, 1).first_column;      \
  60           (Current).last_line    = YYRHSLOC (Rhs, N).last_line;         \
  61           (Current).last_column  = YYRHSLOC (Rhs, N).last_column;       \
  62           (Current).file         = YYRHSLOC (Rhs, N).file;              \
  63         }                                                               \
  64       else                                                              \
  65         {                                                               \
  66           (Current).first_line   = (Current).last_line   =              \
  67             YYRHSLOC (Rhs, 0).last_line;                                \
  68           (Current).first_column = (Current).last_column =              \
  69             YYRHSLOC (Rhs, 0).last_column;                              \
  70           (Current).file         = YYRHSLOC (Rhs, 0).file;              \
  71         }                                                               \
  72     while (YYID (0))
  73
  74
  75 typedef YYLTYPE srcpos;
  76
  77 /*
  78  * Fictional source position used for IR nodes that are
  79  * created without otherwise knowing a true source position.
  80  * For example,constant definitions from the command line.
  81  */
  82 extern srcpos srcpos_empty;
  83
  84 extern struct dtc_file *srcpos_file;
  85
  86 struct search_path {
  87         const char *dir; /* NULL for current directory */
  88         struct search_path *prev, *next;
  89 };
  90
  91 extern struct dtc_file *dtc_open_file(const char *fname,
  92                                       const struct search_path *search);
  93 extern void dtc_close_file(struct dtc_file *file);
  94
  95 extern srcpos *srcpos_copy(srcpos *pos);
  96 extern char *srcpos_string(srcpos *pos);
  97 extern void srcpos_dump(srcpos *pos);
  98
  99 extern void srcpos_error(srcpos *pos, char const *, ...)
 100      __attribute__((format(printf, 2, 3)));
 101 extern void srcpos_warn(srcpos *pos, char const *, ...)
 102      __attribute__((format(printf, 2, 3)));
 103
 104 #endif /* _SRCPOS_H_ */