/*
   * Copyright 2007 Jon Loeliger, Freescale Semiconductor, Inc.
   *
   * 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.
   *
   *  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307
   *                                                                   USA
   */

  #ifndef _SRCPOS_H_
  #define _SRCPOS_H_

  #include <stdio.h>

  struct srcfile_state {
  	FILE *f;
  	char *name;

  	char *dir;

  	int lineno, colno;
  	struct srcfile_state *prev;

  };

  extern FILE *depfile; /* = NULL */

  extern struct srcfile_state *current_srcfile; /* = NULL */
  
  FILE *srcfile_relative_open(const char *fname, char **fullnamep);
  void srcfile_push(const char *fname);
  int srcfile_pop(void);
  
  struct srcpos {

      int first_line;
      int first_column;
      int last_line;
      int last_column;

      struct srcfile_state *file;
  };

  #define YYLTYPE struct srcpos

  #define YYLLOC_DEFAULT(Current, Rhs, N)						\
  	do {									\
  		if (N) {							\
  			(Current).first_line = YYRHSLOC(Rhs, 1).first_line;	\
  			(Current).first_column = YYRHSLOC(Rhs, 1).first_column;	\
  			(Current).last_line = YYRHSLOC(Rhs, N).last_line;	\
  			(Current).last_column  = YYRHSLOC (Rhs, N).last_column;	\
  			(Current).file = YYRHSLOC(Rhs, N).file;			\
  		} else {							\
  			(Current).first_line = (Current).last_line =		\
  				YYRHSLOC(Rhs, 0).last_line;			\
  			(Current).first_column = (Current).last_column =	\
  				YYRHSLOC(Rhs, 0).last_column;			\
  			(Current).file = YYRHSLOC (Rhs, 0).file;		\
  		}								\
  	} while (0)

  /*
   * Fictional source position used for IR nodes that are
   * created without otherwise knowing a true source position.
   * For example,constant definitions from the command line.
   */
  extern struct srcpos srcpos_empty;

  extern void srcpos_update(struct srcpos *pos, const char *text, int len);
  extern struct srcpos *srcpos_copy(struct srcpos *pos);
  extern char *srcpos_string(struct srcpos *pos);
  extern void srcpos_dump(struct srcpos *pos);

  extern void srcpos_verror(struct srcpos *pos, char const *, va_list va)
       __attribute__((format(printf, 2, 0)));
  extern void srcpos_error(struct srcpos *pos, char const *, ...)
       __attribute__((format(printf, 2, 3)));
  extern void srcpos_warn(struct srcpos *pos, char const *, ...)
       __attribute__((format(printf, 2, 3)));

  #endif /* _SRCPOS_H_ */