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d7f6896a RK |
1 | /* Declarations for variables relating to reading the source file. |
2 | Used by parsers, lexical analyzers, and error message routines. | |
818ab71a | 3 | Copyright (C) 1993-2016 Free Software Foundation, Inc. |
d7f6896a | 4 | |
1322177d | 5 | This file is part of GCC. |
d7f6896a | 6 | |
1322177d LB |
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 | |
9dcd6f09 | 9 | Software Foundation; either version 3, or (at your option) any later |
1322177d | 10 | version. |
d7f6896a | 11 | |
1322177d LB |
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. | |
d7f6896a RK |
16 | |
17 | You should have received a copy of the GNU General Public License | |
9dcd6f09 NC |
18 | along with GCC; see the file COPYING3. If not see |
19 | <http://www.gnu.org/licenses/>. */ | |
d7f6896a | 20 | |
6060edcb NS |
21 | #ifndef GCC_INPUT_H |
22 | #define GCC_INPUT_H | |
1fa2d22f | 23 | |
c1667470 | 24 | #include "line-map.h" |
2d593c86 | 25 | |
5ffeb913 | 26 | extern GTY(()) struct line_maps *line_table; |
f87e22c5 | 27 | extern GTY(()) struct line_maps *saved_line_table; |
50f59cd7 | 28 | |
2d593c86 TT |
29 | /* A value which will never be used to represent a real location. */ |
30 | #define UNKNOWN_LOCATION ((source_location) 0) | |
31 | ||
c1667470 | 32 | /* The location for declarations in "<built-in>" */ |
96c169e1 JJ |
33 | #define BUILTINS_LOCATION ((source_location) 1) |
34 | ||
35 | /* line-map.c reserves RESERVED_LOCATION_COUNT to the user. Ensure | |
36 | both UNKNOWN_LOCATION and BUILTINS_LOCATION fit into that. */ | |
37 | extern char builtins_location_check[(BUILTINS_LOCATION | |
38 | < RESERVED_LOCATION_COUNT) ? 1 : -1]; | |
c1667470 | 39 | |
c468587a | 40 | extern bool is_location_from_builtin_token (source_location); |
c1667470 | 41 | extern expanded_location expand_location (source_location); |
31bdd08a | 42 | extern const char *location_get_source_line (const char *file_path, int line, |
7ecc3eb9 | 43 | int *line_size); |
7eb918cc | 44 | extern expanded_location expand_location_to_spelling_point (source_location); |
70dc395a | 45 | extern source_location expansion_point_location_if_in_system_header (source_location); |
79ce98bc | 46 | extern source_location expansion_point_location (source_location); |
c1667470 | 47 | |
2d593c86 TT |
48 | /* Historically GCC used location_t, while cpp used source_location. |
49 | This could be removed but it hardly seems worth the effort. */ | |
50 | typedef source_location location_t; | |
1fa2d22f | 51 | |
6060edcb | 52 | extern location_t input_location; |
c1667470 PB |
53 | |
54 | #define LOCATION_FILE(LOC) ((expand_location (LOC)).file) | |
55 | #define LOCATION_LINE(LOC) ((expand_location (LOC)).line) | |
46427374 | 56 | #define LOCATION_COLUMN(LOC)((expand_location (LOC)).column) |
5368224f | 57 | #define LOCATION_LOCUS(LOC) \ |
c3284718 RS |
58 | ((IS_ADHOC_LOC (LOC)) ? get_location_from_adhoc_loc (line_table, LOC) \ |
59 | : (LOC)) | |
5368224f DC |
60 | #define LOCATION_BLOCK(LOC) \ |
61 | ((tree) ((IS_ADHOC_LOC (LOC)) ? get_data_from_adhoc_loc (line_table, (LOC)) \ | |
c3284718 | 62 | : NULL)) |
c1667470 | 63 | |
86d2cad9 MLI |
64 | /* Return a positive value if LOCATION is the locus of a token that is |
65 | located in a system header, O otherwise. It returns 1 if LOCATION | |
66 | is the locus of a token that is located in a system header, and 2 | |
67 | if LOCATION is the locus of a token located in a C system header | |
68 | that therefore needs to be extern "C" protected in C++. | |
69 | ||
70 | Note that this function returns 1 if LOCATION belongs to a token | |
71 | that is part of a macro replacement-list defined in a system | |
72 | header, but expanded in a non-system file. */ | |
46427374 | 73 | #define in_system_header_at(LOC) \ |
86d2cad9 | 74 | (linemap_location_in_system_header_p (line_table, LOC)) |
b8787813 MP |
75 | /* Return a positive value if LOCATION is the locus of a token that |
76 | comes from a macro expansion, O otherwise. */ | |
77 | #define from_macro_expansion_at(LOC) \ | |
78 | ((linemap_location_from_macro_expansion_p (line_table, LOC))) | |
1fa2d22f | 79 | |
a01fc549 DM |
80 | extern location_t get_pure_location (location_t loc); |
81 | ||
82 | /* Get the endpoint of any range encoded within location LOC. */ | |
83 | ||
84 | static inline location_t | |
85 | get_finish (location_t loc) | |
86 | { | |
87 | return get_range_from_loc (line_table, loc).m_finish; | |
88 | } | |
89 | ||
90 | extern location_t make_location (location_t caret, | |
91 | location_t start, location_t finish); | |
92 | ||
64a1a422 TT |
93 | void dump_line_table_statistics (void); |
94 | ||
ba4ad400 DM |
95 | void dump_location_info (FILE *stream); |
96 | ||
7ecc3eb9 DS |
97 | void diagnostics_file_cache_fini (void); |
98 | ||
f89b03b6 DM |
99 | void diagnostics_file_cache_forcibly_evict_file (const char *file_path); |
100 | ||
88fa5555 DM |
101 | struct GTY(()) string_concat |
102 | { | |
103 | string_concat (int num, location_t *locs); | |
104 | ||
105 | int m_num; | |
106 | location_t * GTY ((atomic)) m_locs; | |
107 | }; | |
108 | ||
109 | struct location_hash : int_hash <location_t, UNKNOWN_LOCATION> { }; | |
110 | ||
111 | class GTY(()) string_concat_db | |
112 | { | |
113 | public: | |
114 | string_concat_db (); | |
115 | void record_string_concatenation (int num, location_t *locs); | |
116 | ||
117 | bool get_string_concatenation (location_t loc, | |
118 | int *out_num, | |
119 | location_t **out_locs); | |
120 | ||
121 | private: | |
122 | static location_t get_key_loc (location_t loc); | |
123 | ||
124 | /* For the fields to be private, we must grant access to the | |
125 | generated code in gtype-desc.c. */ | |
126 | ||
127 | friend void ::gt_ggc_mx_string_concat_db (void *x_p); | |
128 | friend void ::gt_pch_nx_string_concat_db (void *x_p); | |
129 | friend void ::gt_pch_p_16string_concat_db (void *this_obj, void *x_p, | |
130 | gt_pointer_operator op, | |
131 | void *cookie); | |
132 | ||
133 | hash_map <location_hash, string_concat *> *m_table; | |
134 | }; | |
135 | ||
6060edcb | 136 | #endif |