input.h 3.0 KB

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  1. /* Declarations for variables relating to reading the source file.
  2. Used by parsers, lexical analyzers, and error message routines.
  3. Copyright (C) 1993-2015 Free Software Foundation, Inc.
  4. This file is part of GCC.
  5. GCC is free software; you can redistribute it and/or modify it under
  6. the terms of the GNU General Public License as published by the Free
  7. Software Foundation; either version 3, or (at your option) any later
  8. version.
  9. GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  10. WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11. FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
  12. for more details.
  13. You should have received a copy of the GNU General Public License
  14. along with GCC; see the file COPYING3. If not see
  15. <http://www.gnu.org/licenses/>. */
  16. #ifndef GCC_INPUT_H
  17. #define GCC_INPUT_H
  18. #include "line-map.h"
  19. extern GTY(()) struct line_maps *line_table;
  20. /* A value which will never be used to represent a real location. */
  21. #define UNKNOWN_LOCATION ((source_location) 0)
  22. /* The location for declarations in "<built-in>" */
  23. #define BUILTINS_LOCATION ((source_location) 1)
  24. /* line-map.c reserves RESERVED_LOCATION_COUNT to the user. Ensure
  25. both UNKNOWN_LOCATION and BUILTINS_LOCATION fit into that. */
  26. extern char builtins_location_check[(BUILTINS_LOCATION
  27. < RESERVED_LOCATION_COUNT) ? 1 : -1];
  28. extern bool is_location_from_builtin_token (source_location);
  29. extern expanded_location expand_location (source_location);
  30. extern const char *location_get_source_line (expanded_location xloc,
  31. int *line_size);
  32. extern expanded_location expand_location_to_spelling_point (source_location);
  33. extern source_location expansion_point_location_if_in_system_header (source_location);
  34. /* Historically GCC used location_t, while cpp used source_location.
  35. This could be removed but it hardly seems worth the effort. */
  36. typedef source_location location_t;
  37. extern location_t input_location;
  38. #define LOCATION_FILE(LOC) ((expand_location (LOC)).file)
  39. #define LOCATION_LINE(LOC) ((expand_location (LOC)).line)
  40. #define LOCATION_COLUMN(LOC)((expand_location (LOC)).column)
  41. #define LOCATION_LOCUS(LOC) \
  42. ((IS_ADHOC_LOC (LOC)) ? get_location_from_adhoc_loc (line_table, LOC) \
  43. : (LOC))
  44. #define LOCATION_BLOCK(LOC) \
  45. ((tree) ((IS_ADHOC_LOC (LOC)) ? get_data_from_adhoc_loc (line_table, (LOC)) \
  46. : NULL))
  47. /* Return a positive value if LOCATION is the locus of a token that is
  48. located in a system header, O otherwise. It returns 1 if LOCATION
  49. is the locus of a token that is located in a system header, and 2
  50. if LOCATION is the locus of a token located in a C system header
  51. that therefore needs to be extern "C" protected in C++.
  52. Note that this function returns 1 if LOCATION belongs to a token
  53. that is part of a macro replacement-list defined in a system
  54. header, but expanded in a non-system file. */
  55. #define in_system_header_at(LOC) \
  56. (linemap_location_in_system_header_p (line_table, LOC))
  57. void dump_line_table_statistics (void);
  58. void diagnostics_file_cache_fini (void);
  59. #endif