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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. | |
85ec4feb | 3 | Copyright (C) 1993-2018 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); |
c65236d6 | 44 | extern bool location_missing_trailing_newline (const char *file_path); |
7eb918cc | 45 | extern expanded_location expand_location_to_spelling_point (source_location); |
70dc395a | 46 | extern source_location expansion_point_location_if_in_system_header (source_location); |
79ce98bc | 47 | extern source_location expansion_point_location (source_location); |
c1667470 | 48 | |
2d593c86 TT |
49 | /* Historically GCC used location_t, while cpp used source_location. |
50 | This could be removed but it hardly seems worth the effort. */ | |
51 | typedef source_location location_t; | |
1fa2d22f | 52 | |
6060edcb | 53 | extern location_t input_location; |
c1667470 PB |
54 | |
55 | #define LOCATION_FILE(LOC) ((expand_location (LOC)).file) | |
56 | #define LOCATION_LINE(LOC) ((expand_location (LOC)).line) | |
46427374 | 57 | #define LOCATION_COLUMN(LOC)((expand_location (LOC)).column) |
5368224f | 58 | #define LOCATION_LOCUS(LOC) \ |
c3284718 RS |
59 | ((IS_ADHOC_LOC (LOC)) ? get_location_from_adhoc_loc (line_table, LOC) \ |
60 | : (LOC)) | |
5368224f DC |
61 | #define LOCATION_BLOCK(LOC) \ |
62 | ((tree) ((IS_ADHOC_LOC (LOC)) ? get_data_from_adhoc_loc (line_table, (LOC)) \ | |
c3284718 | 63 | : NULL)) |
bebe0086 ML |
64 | #define RESERVED_LOCATION_P(LOC) \ |
65 | (LOCATION_LOCUS (LOC) < RESERVED_LOCATION_COUNT) | |
c1667470 | 66 | |
86d2cad9 MLI |
67 | /* Return a positive value if LOCATION is the locus of a token that is |
68 | located in a system header, O otherwise. It returns 1 if LOCATION | |
69 | is the locus of a token that is located in a system header, and 2 | |
70 | if LOCATION is the locus of a token located in a C system header | |
71 | that therefore needs to be extern "C" protected in C++. | |
72 | ||
73 | Note that this function returns 1 if LOCATION belongs to a token | |
74 | that is part of a macro replacement-list defined in a system | |
75 | header, but expanded in a non-system file. */ | |
3b67d7e6 DM |
76 | |
77 | static inline int | |
78 | in_system_header_at (location_t loc) | |
79 | { | |
80 | return linemap_location_in_system_header_p (line_table, loc); | |
81 | } | |
82 | ||
83 | /* Return true if LOCATION is the locus of a token that | |
84 | comes from a macro expansion, false otherwise. */ | |
85 | ||
86 | static inline bool | |
87 | from_macro_expansion_at (location_t loc) | |
88 | { | |
89 | return linemap_location_from_macro_expansion_p (line_table, loc); | |
90 | } | |
91 | ||
92 | /* Return true if LOCATION is the locus of a token that comes from | |
93 | a macro definition, false otherwise. This differs from from_macro_expansion_at | |
63cb3926 | 94 | in its treatment of macro arguments, for which this returns false. */ |
3b67d7e6 DM |
95 | |
96 | static inline bool | |
97 | from_macro_definition_at (location_t loc) | |
98 | { | |
99 | return linemap_location_from_macro_definition_p (line_table, loc); | |
100 | } | |
1fa2d22f | 101 | |
2aa51413 DM |
102 | static inline location_t |
103 | get_pure_location (location_t loc) | |
104 | { | |
105 | return get_pure_location (line_table, loc); | |
106 | } | |
a01fc549 | 107 | |
9144eabb DM |
108 | /* Get the start of any range encoded within location LOC. */ |
109 | ||
110 | static inline location_t | |
111 | get_start (location_t loc) | |
112 | { | |
113 | return get_range_from_loc (line_table, loc).m_start; | |
114 | } | |
115 | ||
a01fc549 DM |
116 | /* Get the endpoint of any range encoded within location LOC. */ |
117 | ||
118 | static inline location_t | |
119 | get_finish (location_t loc) | |
120 | { | |
121 | return get_range_from_loc (line_table, loc).m_finish; | |
122 | } | |
123 | ||
124 | extern location_t make_location (location_t caret, | |
125 | location_t start, location_t finish); | |
a32c8316 | 126 | extern location_t make_location (location_t caret, source_range src_range); |
a01fc549 | 127 | |
64a1a422 TT |
128 | void dump_line_table_statistics (void); |
129 | ||
ba4ad400 DM |
130 | void dump_location_info (FILE *stream); |
131 | ||
7ecc3eb9 DS |
132 | void diagnostics_file_cache_fini (void); |
133 | ||
f89b03b6 DM |
134 | void diagnostics_file_cache_forcibly_evict_file (const char *file_path); |
135 | ||
88fa5555 DM |
136 | struct GTY(()) string_concat |
137 | { | |
138 | string_concat (int num, location_t *locs); | |
139 | ||
140 | int m_num; | |
141 | location_t * GTY ((atomic)) m_locs; | |
142 | }; | |
143 | ||
144 | struct location_hash : int_hash <location_t, UNKNOWN_LOCATION> { }; | |
145 | ||
146 | class GTY(()) string_concat_db | |
147 | { | |
148 | public: | |
149 | string_concat_db (); | |
150 | void record_string_concatenation (int num, location_t *locs); | |
151 | ||
152 | bool get_string_concatenation (location_t loc, | |
153 | int *out_num, | |
154 | location_t **out_locs); | |
155 | ||
156 | private: | |
157 | static location_t get_key_loc (location_t loc); | |
158 | ||
159 | /* For the fields to be private, we must grant access to the | |
160 | generated code in gtype-desc.c. */ | |
161 | ||
162 | friend void ::gt_ggc_mx_string_concat_db (void *x_p); | |
163 | friend void ::gt_pch_nx_string_concat_db (void *x_p); | |
164 | friend void ::gt_pch_p_16string_concat_db (void *this_obj, void *x_p, | |
165 | gt_pointer_operator op, | |
166 | void *cookie); | |
167 | ||
168 | hash_map <location_hash, string_concat *> *m_table; | |
169 | }; | |
170 | ||
6060edcb | 171 | #endif |