srcpos.h

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/*
 * 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);

void srcfile_add_search_path(const char *dirname);

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)));

extern void srcpos_set_line(char *f, int l);

#endif /* _SRCPOS_H_ */