/* SPDX-License-Identifier: GPL-2.0-or-later */

/*

 * Copyright 2007 Jon Loeliger, Freescale Semiconductor, Inc.

 */

#ifndef SRCPOS_H

#define SRCPOS_H

#include <stdio.h>

#include <stdbool.h>

#include "util.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 */

/**

 * Open a source file.

 *

 * If the source file is a relative pathname, then it is searched for in the

 * current directory (the directory of the last source file read) and after

 * that in the search path.

 *

 * We work through the search path in order from the first path specified to

 * the last.

 *

 * If the file is not found, then this function does not return, but calls

 * die().

 *

 * @param fname		Filename to search

 * @param fullnamep	If non-NULL, it is set to the allocated filename of the

 *			file that was opened. The caller is then responsible

 *			for freeing the pointer.

 * @return pointer to opened FILE

 */

FILE *srcfile_relative_open(const char *fname, char **fullnamep);

void srcfile_push(const char *fname);

bool srcfile_pop(void);

/**

 * Add a new directory to the search path for input files

 *

 * The new path is added at the end of the list.

 *

 * @param dirname	Directory to add

 */

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;

    struct srcpos *next;

};

#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;		\

		}								\

		(Current).next = NULL;						\

	} while (0)

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

extern struct srcpos *srcpos_copy(struct srcpos *pos);

extern struct srcpos *srcpos_extend(struct srcpos *new_srcpos,

				    struct srcpos *old_srcpos);

extern char *srcpos_string(struct srcpos *pos);

extern char *srcpos_string_first(struct srcpos *pos, int level);

extern char *srcpos_string_last(struct srcpos *pos, int level);

extern void PRINTF(3, 0) srcpos_verror(struct srcpos *pos, const char *prefix,

					const char *fmt, va_list va);

extern void PRINTF(3, 4) srcpos_error(struct srcpos *pos, const char *prefix,

				      const char *fmt, ...);

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

#endif /* SRCPOS_H */