freebsd-dev/contrib/gcc/input.h

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/* Declarations for variables relating to reading the source file.
Used by parsers, lexical analyzers, and error message routines.
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Copyright (C) 1993, 1997, 1998, 2000, 2003 Free Software Foundation, Inc.
This file is part of GCC.
GCC 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, or (at your option) any later
version.
GCC 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 GCC; see the file COPYING. If not, write to the Free
Software Foundation, 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA. */
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#ifndef GCC_INPUT_H
#define GCC_INPUT_H
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/* The data structure used to record a location in a translation unit. */
/* Long-term, we want to get rid of this and typedef fileline location_t. */
struct location_s GTY (())
{
/* The name of the source file involved. */
const char *file;
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/* The line-location in the source file. */
int line;
};
typedef struct location_s location_t;
struct file_stack
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{
struct file_stack *next;
location_t location;
};
/* Top-level source file. */
extern const char *main_input_filename;
extern location_t input_location;
#define input_line (input_location.line)
#define input_filename (input_location.file)
/* Stack of currently pending input files.
The line member is not accurate for the innermost file on the stack. */
extern struct file_stack *input_file_stack;
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/* Stack of EXPR_WITH_FILE_LOCATION nested expressions. */
extern struct file_stack *expr_wfl_stack;
/* Incremented on each change to input_file_stack. */
extern int input_file_stack_tick;
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extern void push_srcloc (const char *name, int line);
extern void pop_srcloc (void);
#endif