gcc/input.h

   1 /* Declarations for variables relating to reading the source file.
   2    Used by parsers, lexical analyzers, and error message routines.
   3    Copyright (C) 1993, 1997, 1998, 2000, 2003, 2004, 2007, 2008
   4    Free Software Foundation, Inc.
   5
   6 This file is part of GCC.
   7
   8 GCC is free software; you can redistribute it and/or modify it under
   9 the terms of the GNU General Public License as published by the Free
  10 Software Foundation; either version 3, or (at your option) any later
  11 version.
  12
  13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  15 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  16 for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GCC; see the file COPYING3.  If not see
  20 <http://www.gnu.org/licenses/>.  */
  21
  22 #ifndef GCC_INPUT_H
  23 #define GCC_INPUT_H
  24
  25 #include "line-map.h"
  26
  27 extern GTY(()) struct line_maps *line_table;
  28
  29 /* A value which will never be used to represent a real location.  */
  30 #define UNKNOWN_LOCATION ((source_location) 0)
  31
  32 /* The location for declarations in "<built-in>" */
  33 #define BUILTINS_LOCATION ((source_location) 2)
  34
  35 typedef struct GTY (())
  36 {
  37   /* The name of the source file involved.  */
  38   const char *file;
  39
  40   /* The line-location in the source file.  */
  41   int line;
  42
  43   int column;
  44
  45   /* In a system header?. */
  46   bool sysp;
  47 } expanded_location;
  48
  49 extern expanded_location expand_location (source_location);
  50
  51 /* Historically GCC used location_t, while cpp used source_location.
  52    This could be removed but it hardly seems worth the effort.  */
  53 typedef source_location location_t;
  54
  55 /* Top-level source file.  */
  56 extern const char *main_input_filename;
  57
  58 extern location_t input_location;
  59
  60 #define LOCATION_FILE(LOC) ((expand_location (LOC)).file)
  61 #define LOCATION_LINE(LOC) ((expand_location (LOC)).line)
  62
  63 #define input_line LOCATION_LINE (input_location)
  64 #define input_filename LOCATION_FILE (input_location)
  65 #define in_system_header_at(LOC) ((expand_location (LOC)).sysp != 0)
  66 #define in_system_header (in_system_header_at (input_location))
  67
  68 #endif