86d2cad906
2014-08-15 Manuel López-Ibáñez <manu@gcc.gnu.org> * input.h (in_system_header_at): Add comment. From-SVN: r214028
79 lines
3.0 KiB
C
79 lines
3.0 KiB
C
/* Declarations for variables relating to reading the source file.
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Used by parsers, lexical analyzers, and error message routines.
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Copyright (C) 1993-2014 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#ifndef GCC_INPUT_H
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#define GCC_INPUT_H
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#include "line-map.h"
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extern GTY(()) struct line_maps *line_table;
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/* A value which will never be used to represent a real location. */
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#define UNKNOWN_LOCATION ((source_location) 0)
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/* The location for declarations in "<built-in>" */
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#define BUILTINS_LOCATION ((source_location) 1)
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/* line-map.c reserves RESERVED_LOCATION_COUNT to the user. Ensure
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both UNKNOWN_LOCATION and BUILTINS_LOCATION fit into that. */
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extern char builtins_location_check[(BUILTINS_LOCATION
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< RESERVED_LOCATION_COUNT) ? 1 : -1];
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extern bool is_location_from_builtin_token (source_location);
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extern expanded_location expand_location (source_location);
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extern const char *location_get_source_line (expanded_location xloc,
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int *line_size);
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extern expanded_location expand_location_to_spelling_point (source_location);
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extern source_location expansion_point_location_if_in_system_header (source_location);
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/* Historically GCC used location_t, while cpp used source_location.
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This could be removed but it hardly seems worth the effort. */
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typedef source_location location_t;
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extern location_t input_location;
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#define LOCATION_FILE(LOC) ((expand_location (LOC)).file)
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#define LOCATION_LINE(LOC) ((expand_location (LOC)).line)
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#define LOCATION_COLUMN(LOC)((expand_location (LOC)).column)
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#define LOCATION_LOCUS(LOC) \
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((IS_ADHOC_LOC (LOC)) ? get_location_from_adhoc_loc (line_table, LOC) \
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: (LOC))
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#define LOCATION_BLOCK(LOC) \
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((tree) ((IS_ADHOC_LOC (LOC)) ? get_data_from_adhoc_loc (line_table, (LOC)) \
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: NULL))
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/* Return a positive value if LOCATION is the locus of a token that is
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located in a system header, O otherwise. It returns 1 if LOCATION
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is the locus of a token that is located in a system header, and 2
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if LOCATION is the locus of a token located in a C system header
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that therefore needs to be extern "C" protected in C++.
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Note that this function returns 1 if LOCATION belongs to a token
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that is part of a macro replacement-list defined in a system
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header, but expanded in a non-system file. */
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#define in_system_header_at(LOC) \
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(linemap_location_in_system_header_p (line_table, LOC))
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void dump_line_table_statistics (void);
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void diagnostics_file_cache_fini (void);
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#endif
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