Mercurial > hg > CbC > CbC_gcc
annotate gcc/input.h @ 132:d34655255c78
update gcc-8.2
author | mir3636 |
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date | Thu, 25 Oct 2018 10:21:07 +0900 |
parents | 84e7813d76e9 |
children | 1830386684a0 |
rev | line source |
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0 | 1 /* Declarations for variables relating to reading the source file. |
2 Used by parsers, lexical analyzers, and error message routines. | |
131 | 3 Copyright (C) 1993-2018 Free Software Foundation, Inc. |
0 | 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; | |
111 | 27 extern GTY(()) struct line_maps *saved_line_table; |
0 | 28 |
29 /* A value which will never be used to represent a real location. */ | |
30 #define UNKNOWN_LOCATION ((source_location) 0) | |
31 | |
32 /* The location for declarations in "<built-in>" */ | |
55
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33 #define BUILTINS_LOCATION ((source_location) 1) |
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34 |
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35 /* line-map.c reserves RESERVED_LOCATION_COUNT to the user. Ensure |
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36 both UNKNOWN_LOCATION and BUILTINS_LOCATION fit into that. */ |
131 | 37 STATIC_ASSERT (BUILTINS_LOCATION < RESERVED_LOCATION_COUNT); |
0 | 38 |
111 | 39 extern bool is_location_from_builtin_token (source_location); |
0 | 40 extern expanded_location expand_location (source_location); |
131 | 41 |
42 /* A class capturing the bounds of a buffer, to allow for run-time | |
43 bounds-checking in a checked build. */ | |
44 | |
45 class char_span | |
46 { | |
47 public: | |
48 char_span (const char *ptr, size_t n_elts) : m_ptr (ptr), m_n_elts (n_elts) {} | |
49 | |
50 /* Test for a non-NULL pointer. */ | |
51 operator bool() const { return m_ptr; } | |
52 | |
53 /* Get length, not including any 0-terminator (which may not be, | |
54 in fact, present). */ | |
55 size_t length () const { return m_n_elts; } | |
56 | |
57 const char *get_buffer () const { return m_ptr; } | |
58 | |
59 char operator[] (int idx) const | |
60 { | |
61 gcc_assert (idx >= 0); | |
62 gcc_assert ((size_t)idx < m_n_elts); | |
63 return m_ptr[idx]; | |
64 } | |
65 | |
66 char_span subspan (int offset, int n_elts) const | |
67 { | |
68 gcc_assert (offset >= 0); | |
69 gcc_assert (offset < (int)m_n_elts); | |
70 gcc_assert (n_elts >= 0); | |
71 gcc_assert (offset + n_elts <= (int)m_n_elts); | |
72 return char_span (m_ptr + offset, n_elts); | |
73 } | |
74 | |
75 char *xstrdup () const | |
76 { | |
77 return ::xstrndup (m_ptr, m_n_elts); | |
78 } | |
79 | |
80 private: | |
81 const char *m_ptr; | |
82 size_t m_n_elts; | |
83 }; | |
84 | |
85 extern char_span location_get_source_line (const char *file_path, int line); | |
86 | |
111 | 87 extern bool location_missing_trailing_newline (const char *file_path); |
131 | 88 extern expanded_location |
89 expand_location_to_spelling_point (source_location, | |
90 enum location_aspect aspect | |
91 = LOCATION_ASPECT_CARET); | |
111 | 92 extern source_location expansion_point_location_if_in_system_header (source_location); |
93 extern source_location expansion_point_location (source_location); | |
0 | 94 |
95 /* Historically GCC used location_t, while cpp used source_location. | |
96 This could be removed but it hardly seems worth the effort. */ | |
97 typedef source_location location_t; | |
98 | |
99 extern location_t input_location; | |
100 | |
101 #define LOCATION_FILE(LOC) ((expand_location (LOC)).file) | |
102 #define LOCATION_LINE(LOC) ((expand_location (LOC)).line) | |
111 | 103 #define LOCATION_COLUMN(LOC)((expand_location (LOC)).column) |
104 #define LOCATION_LOCUS(LOC) \ | |
105 ((IS_ADHOC_LOC (LOC)) ? get_location_from_adhoc_loc (line_table, LOC) \ | |
106 : (LOC)) | |
107 #define LOCATION_BLOCK(LOC) \ | |
108 ((tree) ((IS_ADHOC_LOC (LOC)) ? get_data_from_adhoc_loc (line_table, (LOC)) \ | |
109 : NULL)) | |
110 #define RESERVED_LOCATION_P(LOC) \ | |
111 (LOCATION_LOCUS (LOC) < RESERVED_LOCATION_COUNT) | |
0 | 112 |
111 | 113 /* Return a positive value if LOCATION is the locus of a token that is |
114 located in a system header, O otherwise. It returns 1 if LOCATION | |
115 is the locus of a token that is located in a system header, and 2 | |
116 if LOCATION is the locus of a token located in a C system header | |
117 that therefore needs to be extern "C" protected in C++. | |
118 | |
119 Note that this function returns 1 if LOCATION belongs to a token | |
120 that is part of a macro replacement-list defined in a system | |
121 header, but expanded in a non-system file. */ | |
131 | 122 |
123 static inline int | |
124 in_system_header_at (location_t loc) | |
125 { | |
126 return linemap_location_in_system_header_p (line_table, loc); | |
127 } | |
128 | |
129 /* Return true if LOCATION is the locus of a token that | |
130 comes from a macro expansion, false otherwise. */ | |
131 | |
132 static inline bool | |
133 from_macro_expansion_at (location_t loc) | |
134 { | |
135 return linemap_location_from_macro_expansion_p (line_table, loc); | |
136 } | |
137 | |
138 /* Return true if LOCATION is the locus of a token that comes from | |
139 a macro definition, false otherwise. This differs from from_macro_expansion_at | |
111 | 140 in its treatment of macro arguments, for which this returns false. */ |
131 | 141 |
142 static inline bool | |
143 from_macro_definition_at (location_t loc) | |
144 { | |
145 return linemap_location_from_macro_definition_p (line_table, loc); | |
146 } | |
111 | 147 |
148 static inline location_t | |
149 get_pure_location (location_t loc) | |
150 { | |
151 return get_pure_location (line_table, loc); | |
152 } | |
153 | |
154 /* Get the start of any range encoded within location LOC. */ | |
155 | |
156 static inline location_t | |
157 get_start (location_t loc) | |
158 { | |
159 return get_range_from_loc (line_table, loc).m_start; | |
160 } | |
161 | |
162 /* Get the endpoint of any range encoded within location LOC. */ | |
163 | |
164 static inline location_t | |
165 get_finish (location_t loc) | |
166 { | |
167 return get_range_from_loc (line_table, loc).m_finish; | |
168 } | |
169 | |
170 extern location_t make_location (location_t caret, | |
171 location_t start, location_t finish); | |
172 extern location_t make_location (location_t caret, source_range src_range); | |
173 | |
174 void dump_line_table_statistics (void); | |
175 | |
176 void dump_location_info (FILE *stream); | |
177 | |
178 void diagnostics_file_cache_fini (void); | |
179 | |
180 void diagnostics_file_cache_forcibly_evict_file (const char *file_path); | |
181 | |
182 struct GTY(()) string_concat | |
183 { | |
184 string_concat (int num, location_t *locs); | |
185 | |
186 int m_num; | |
187 location_t * GTY ((atomic)) m_locs; | |
188 }; | |
189 | |
190 struct location_hash : int_hash <location_t, UNKNOWN_LOCATION> { }; | |
191 | |
192 class GTY(()) string_concat_db | |
193 { | |
194 public: | |
195 string_concat_db (); | |
196 void record_string_concatenation (int num, location_t *locs); | |
197 | |
198 bool get_string_concatenation (location_t loc, | |
199 int *out_num, | |
200 location_t **out_locs); | |
201 | |
202 private: | |
203 static location_t get_key_loc (location_t loc); | |
204 | |
205 /* For the fields to be private, we must grant access to the | |
206 generated code in gtype-desc.c. */ | |
207 | |
208 friend void ::gt_ggc_mx_string_concat_db (void *x_p); | |
209 friend void ::gt_pch_nx_string_concat_db (void *x_p); | |
210 friend void ::gt_pch_p_16string_concat_db (void *this_obj, void *x_p, | |
211 gt_pointer_operator op, | |
212 void *cookie); | |
213 | |
214 hash_map <location_hash, string_concat *> *m_table; | |
215 }; | |
0 | 216 |
217 #endif |