1 /* Declarations for variables relating to reading the source file. 2 Used by parsers, lexical analyzers, and error message routines. 3 Copyright (C) 1993-2013 Free Software Foundation, Inc. 4 5 This file is part of GCC. 6 7 GCC is free software; you can redistribute it and/or modify it under 8 the terms of the GNU General Public License as published by the Free 9 Software Foundation; either version 3, or (at your option) any later 10 version. 11 12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY 13 WARRANTY; without even the implied warranty of MERCHANTABILITY or 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 15 for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with GCC; see the file COPYING3. If not see 19 <http://www.gnu.org/licenses/>. */ 20 21 #ifndef GCC_INPUT_H 22 #define GCC_INPUT_H 23 24 #include "line-map.h" 25 26 extern GTY(()) struct line_maps *line_table; 27 28 /* A value which will never be used to represent a real location. */ 29 #define UNKNOWN_LOCATION ((source_location) 0) 30 31 /* The location for declarations in "<built-in>" */ 32 #define BUILTINS_LOCATION ((source_location) 1) 33 34 /* line-map.c reserves RESERVED_LOCATION_COUNT to the user. Ensure 35 both UNKNOWN_LOCATION and BUILTINS_LOCATION fit into that. */ 36 extern char builtins_location_check[(BUILTINS_LOCATION 37 < RESERVED_LOCATION_COUNT) ? 1 : -1]; 38 39 extern expanded_location expand_location (source_location); 40 extern const char * location_get_source_line(expanded_location xloc); 41 extern expanded_location expand_location_to_spelling_point (source_location); 42 extern source_location expansion_point_location_if_in_system_header (source_location); 43 44 /* Historically GCC used location_t, while cpp used source_location. 45 This could be removed but it hardly seems worth the effort. */ 46 typedef source_location location_t; 47 48 extern location_t input_location; 49 50 #define LOCATION_FILE(LOC) ((expand_location (LOC)).file) 51 #define LOCATION_LINE(LOC) ((expand_location (LOC)).line) 52 #define LOCATION_COLUMN(LOC)((expand_location (LOC)).column) 53 #define LOCATION_LOCUS(LOC) \ 54 ((IS_ADHOC_LOC(LOC)) ? get_location_from_adhoc_loc (line_table, LOC) : (LOC)) 55 #define LOCATION_BLOCK(LOC) \ 56 ((tree) ((IS_ADHOC_LOC (LOC)) ? get_data_from_adhoc_loc (line_table, (LOC)) \ 57 : NULL)) 58 59 #define input_line LOCATION_LINE (input_location) 60 #define input_filename LOCATION_FILE (input_location) 61 #define in_system_header_at(LOC) \ 62 ((linemap_location_in_system_header_p (line_table, LOC))) 63 #define in_system_header (in_system_header_at (input_location)) 64 65 void dump_line_table_statistics (void); 66 67 #endif 68