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88ae23e7 | 1 | /* Part of CPP library. |
8d9254fc | 2 | Copyright (C) 1997-2020 Free Software Foundation, Inc. |
4283012f JL |
3 | |
4 | This program is free software; you can redistribute it and/or modify it | |
5 | under the terms of the GNU General Public License as published by the | |
748086b7 | 6 | Free Software Foundation; either version 3, or (at your option) any |
4283012f JL |
7 | later version. |
8 | ||
9 | This program is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | GNU General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU General Public License | |
748086b7 JJ |
15 | along with this program; see the file COPYING3. If not see |
16 | <http://www.gnu.org/licenses/>. */ | |
4283012f | 17 | |
88ae23e7 | 18 | /* This header defines all the internal data structures and functions |
4f4e53dd PB |
19 | that need to be visible across files. It should not be used outside |
20 | cpplib. */ | |
88ae23e7 | 21 | |
4f4e53dd PB |
22 | #ifndef LIBCPP_INTERNAL_H |
23 | #define LIBCPP_INTERNAL_H | |
bb52fa7f | 24 | |
4f4e53dd | 25 | #include "symtab.h" |
abcd1775 | 26 | #include "cpplib.h" |
2a967f3d | 27 | |
968e08d6 | 28 | #if HAVE_ICONV |
e6cc3a24 ZW |
29 | #include <iconv.h> |
30 | #else | |
31 | #define HAVE_ICONV 0 | |
32 | typedef int iconv_t; /* dummy */ | |
33 | #endif | |
34 | ||
4851089f ILT |
35 | #ifdef __cplusplus |
36 | extern "C" { | |
37 | #endif | |
38 | ||
2a967f3d | 39 | struct directive; /* Deliberately incomplete. */ |
af0d16cd | 40 | struct pending_option; |
87ed109f | 41 | struct op; |
a8016863 | 42 | struct _cpp_strbuf; |
6b88314c ZW |
43 | |
44 | typedef bool (*convert_f) (iconv_t, const unsigned char *, size_t, | |
a8016863 | 45 | struct _cpp_strbuf *); |
6b88314c ZW |
46 | struct cset_converter |
47 | { | |
48 | convert_f func; | |
49 | iconv_t cd; | |
b6baa67d | 50 | int width; |
6b88314c | 51 | }; |
8121d2c3 | 52 | |
4268e8bb NB |
53 | #define BITS_PER_CPPCHAR_T (CHAR_BIT * sizeof (cppchar_t)) |
54 | ||
93c80368 NB |
55 | /* Test if a sign is valid within a preprocessing number. */ |
56 | #define VALID_SIGN(c, prevc) \ | |
57 | (((c) == '+' || (c) == '-') && \ | |
58 | ((prevc) == 'e' || (prevc) == 'E' \ | |
bdb05a7b NB |
59 | || (((prevc) == 'p' || (prevc) == 'P') \ |
60 | && CPP_OPTION (pfile, extended_numbers)))) | |
93c80368 | 61 | |
7057e645 ESR |
62 | #define DIGIT_SEP(c) ((c) == '\'' && CPP_OPTION (pfile, digit_separators)) |
63 | ||
8121d2c3 NB |
64 | #define CPP_OPTION(PFILE, OPTION) ((PFILE)->opts.OPTION) |
65 | #define CPP_BUFFER(PFILE) ((PFILE)->buffer) | |
26aea073 | 66 | #define CPP_BUF_COLUMN(BUF, CUR) ((CUR) - (BUF)->line_base) |
8121d2c3 NB |
67 | #define CPP_BUF_COL(BUF) CPP_BUF_COLUMN(BUF, (BUF)->cur) |
68 | ||
12f9df4e | 69 | #define CPP_INCREMENT_LINE(PFILE, COLS_HINT) do { \ |
99b1c316 | 70 | const class line_maps *line_table = PFILE->line_table; \ |
0e50b624 | 71 | const struct line_map_ordinary *map = \ |
46427374 | 72 | LINEMAPS_LAST_ORDINARY_MAP (line_table); \ |
1bb64668 | 73 | linenum_type line = SOURCE_LINE (map, line_table->highest_line); \ |
500bee0a | 74 | linemap_line_start (PFILE->line_table, line + 1, COLS_HINT); \ |
12f9df4e PB |
75 | } while (0) |
76 | ||
c70f6ed3 NB |
77 | /* Host alignment handling. */ |
78 | struct dummy | |
79 | { | |
80 | char c; | |
81 | union | |
82 | { | |
83 | double d; | |
84 | int *p; | |
85 | } u; | |
86 | }; | |
87 | ||
88 | #define DEFAULT_ALIGNMENT offsetof (struct dummy, u) | |
89 | #define CPP_ALIGN2(size, align) (((size) + ((align) - 1)) & ~((align) - 1)) | |
90 | #define CPP_ALIGN(size) CPP_ALIGN2 (size, DEFAULT_ALIGNMENT) | |
91 | ||
3f6677f4 NS |
92 | #define _cpp_mark_macro_used(NODE) \ |
93 | (cpp_user_macro_p (NODE) ? (NODE)->value.macro->used = 1 : 0) | |
a69cbaac | 94 | |
644eddaa | 95 | /* A generic memory buffer, and operations on it. */ |
b8af0ca5 NB |
96 | typedef struct _cpp_buff _cpp_buff; |
97 | struct _cpp_buff | |
98 | { | |
99 | struct _cpp_buff *next; | |
ece54d54 | 100 | unsigned char *base, *cur, *limit; |
b8af0ca5 NB |
101 | }; |
102 | ||
6cf87ca4 ZW |
103 | extern _cpp_buff *_cpp_get_buff (cpp_reader *, size_t); |
104 | extern void _cpp_release_buff (cpp_reader *, _cpp_buff *); | |
105 | extern void _cpp_extend_buff (cpp_reader *, _cpp_buff **, size_t); | |
106 | extern _cpp_buff *_cpp_append_extend_buff (cpp_reader *, _cpp_buff *, size_t); | |
107 | extern void _cpp_free_buff (_cpp_buff *); | |
108 | extern unsigned char *_cpp_aligned_alloc (cpp_reader *, size_t); | |
109 | extern unsigned char *_cpp_unaligned_alloc (cpp_reader *, size_t); | |
644eddaa | 110 | |
8c3b2693 | 111 | #define BUFF_ROOM(BUFF) (size_t) ((BUFF)->limit - (BUFF)->cur) |
ece54d54 NB |
112 | #define BUFF_FRONT(BUFF) ((BUFF)->cur) |
113 | #define BUFF_LIMIT(BUFF) ((BUFF)->limit) | |
b8af0ca5 | 114 | |
ba133c96 | 115 | /* #include types. */ |
a0be978a NS |
116 | enum include_type |
117 | { | |
118 | /* Directive-based including mechanisms. */ | |
119 | IT_INCLUDE, /* #include */ | |
120 | IT_INCLUDE_NEXT, /* #include_next */ | |
121 | IT_IMPORT, /* #import */ | |
122 | ||
123 | /* Non-directive including mechanisms. */ | |
124 | IT_CMDLINE, /* -include */ | |
125 | IT_DEFAULT, /* forced header */ | |
6bf2ff0d | 126 | IT_MAIN, /* main, start on line 1 */ |
d1c566d7 NS |
127 | IT_PRE_MAIN, /* main, but there will be a preamble before line |
128 | 1 */ | |
b0d11f1e NS |
129 | |
130 | IT_DIRECTIVE_HWM = IT_IMPORT + 1, /* Directives below this. */ | |
68710ac7 | 131 | IT_HEADER_HWM = IT_DEFAULT + 1 /* Header files below this. */ |
a0be978a | 132 | }; |
ba133c96 | 133 | |
4ed5bcfb | 134 | union utoken |
8121d2c3 | 135 | { |
4ed5bcfb NB |
136 | const cpp_token *token; |
137 | const cpp_token **ptoken; | |
8121d2c3 NB |
138 | }; |
139 | ||
5d8ebbd8 | 140 | /* A "run" of tokens; part of a chain of runs. */ |
5fddcffc NB |
141 | typedef struct tokenrun tokenrun; |
142 | struct tokenrun | |
143 | { | |
bdcbe496 | 144 | tokenrun *next, *prev; |
5fddcffc NB |
145 | cpp_token *base, *limit; |
146 | }; | |
147 | ||
82eda77e | 148 | /* Accessor macros for struct cpp_context. */ |
79ba5e3b NB |
149 | #define FIRST(c) ((c)->u.iso.first) |
150 | #define LAST(c) ((c)->u.iso.last) | |
151 | #define CUR(c) ((c)->u.trad.cur) | |
152 | #define RLIMIT(c) ((c)->u.trad.rlimit) | |
82eda77e | 153 | |
92582b75 TT |
154 | /* This describes some additional data that is added to the macro |
155 | token context of type cpp_context, when -ftrack-macro-expansion is | |
156 | on. */ | |
157 | typedef struct | |
158 | { | |
159 | /* The node of the macro we are referring to. */ | |
160 | cpp_hashnode *macro_node; | |
161 | /* This buffer contains an array of virtual locations. The virtual | |
162 | location at index 0 is the virtual location of the token at index | |
163 | 0 in the current instance of cpp_context; similarly for all the | |
164 | other virtual locations. */ | |
620e594b | 165 | location_t *virt_locs; |
92582b75 TT |
166 | /* This is a pointer to the current virtual location. This is used |
167 | to iterate over the virtual locations while we iterate over the | |
168 | tokens they belong to. */ | |
620e594b | 169 | location_t *cur_virt_loc; |
92582b75 TT |
170 | } macro_context; |
171 | ||
172 | /* The kind of tokens carried by a cpp_context. */ | |
173 | enum context_tokens_kind { | |
174 | /* This is the value of cpp_context::tokens_kind if u.iso.first | |
175 | contains an instance of cpp_token **. */ | |
176 | TOKENS_KIND_INDIRECT, | |
177 | /* This is the value of cpp_context::tokens_kind if u.iso.first | |
178 | contains an instance of cpp_token *. */ | |
179 | TOKENS_KIND_DIRECT, | |
180 | /* This is the value of cpp_context::tokens_kind when the token | |
181 | context contains tokens resulting from macro expansion. In that | |
182 | case struct cpp_context::macro points to an instance of struct | |
183 | macro_context. This is used only when the | |
184 | -ftrack-macro-expansion flag is on. */ | |
185 | TOKENS_KIND_EXTENDED | |
186 | }; | |
187 | ||
8121d2c3 NB |
188 | typedef struct cpp_context cpp_context; |
189 | struct cpp_context | |
190 | { | |
191 | /* Doubly-linked list. */ | |
192 | cpp_context *next, *prev; | |
193 | ||
82eda77e NB |
194 | union |
195 | { | |
196 | /* For ISO macro expansion. Contexts other than the base context | |
197 | are contiguous tokens. e.g. macro expansions, expanded | |
198 | argument tokens. */ | |
199 | struct | |
200 | { | |
201 | union utoken first; | |
202 | union utoken last; | |
203 | } iso; | |
204 | ||
205 | /* For traditional macro expansion. */ | |
206 | struct | |
207 | { | |
c812785a RS |
208 | const unsigned char *cur; |
209 | const unsigned char *rlimit; | |
82eda77e NB |
210 | } trad; |
211 | } u; | |
8121d2c3 | 212 | |
1e013d2e | 213 | /* If non-NULL, a buffer used for storage related to this context. |
c9e7a609 | 214 | When the context is popped, the buffer is released. */ |
1e013d2e NB |
215 | _cpp_buff *buff; |
216 | ||
92582b75 TT |
217 | /* If tokens_kind is TOKEN_KIND_EXTENDED, then (as we thus are in a |
218 | macro context) this is a pointer to an instance of macro_context. | |
219 | Otherwise if tokens_kind is *not* TOKEN_KIND_EXTENDED, then, if | |
220 | we are in a macro context, this is a pointer to an instance of | |
221 | cpp_hashnode, representing the name of the macro this context is | |
222 | for. If we are not in a macro context, then this is just NULL. | |
223 | Note that when tokens_kind is TOKEN_KIND_EXTENDED, the memory | |
224 | used by the instance of macro_context pointed to by this member | |
225 | is de-allocated upon de-allocation of the instance of struct | |
226 | cpp_context. */ | |
227 | union | |
228 | { | |
229 | macro_context *mc; | |
230 | cpp_hashnode *macro; | |
231 | } c; | |
4ed5bcfb | 232 | |
92582b75 TT |
233 | /* This determines the type of tokens held by this context. */ |
234 | enum context_tokens_kind tokens_kind; | |
8121d2c3 NB |
235 | }; |
236 | ||
237 | struct lexer_state | |
238 | { | |
056f95ec NS |
239 | /* 1 if we're handling a directive. 2 if it's an include-like |
240 | directive. */ | |
8121d2c3 NB |
241 | unsigned char in_directive; |
242 | ||
a8d0ddaf ZW |
243 | /* Nonzero if in a directive that will handle padding tokens itself. |
244 | #include needs this to avoid problems with computed include and | |
245 | spacing between tokens. */ | |
246 | unsigned char directive_wants_padding; | |
247 | ||
cef0d199 NB |
248 | /* True if we are skipping a failed conditional group. */ |
249 | unsigned char skipping; | |
250 | ||
8121d2c3 NB |
251 | /* Nonzero if in a directive that takes angle-bracketed headers. */ |
252 | unsigned char angled_headers; | |
253 | ||
d97371e0 NB |
254 | /* Nonzero if in a #if or #elif directive. */ |
255 | unsigned char in_expression; | |
256 | ||
8121d2c3 NB |
257 | /* Nonzero to save comments. Turned off if discard_comments, and in |
258 | all directives apart from #define. */ | |
259 | unsigned char save_comments; | |
260 | ||
fb771b9d | 261 | /* Nonzero if lexing __VA_ARGS__ and __VA_OPT__ are valid. */ |
8121d2c3 NB |
262 | unsigned char va_args_ok; |
263 | ||
264 | /* Nonzero if lexing poisoned identifiers is valid. */ | |
265 | unsigned char poisoned_ok; | |
266 | ||
267 | /* Nonzero to prevent macro expansion. */ | |
df383483 | 268 | unsigned char prevent_expansion; |
8121d2c3 NB |
269 | |
270 | /* Nonzero when parsing arguments to a function-like macro. */ | |
271 | unsigned char parsing_args; | |
87ed109f | 272 | |
c6e83800 ZW |
273 | /* Nonzero if prevent_expansion is true only because output is |
274 | being discarded. */ | |
275 | unsigned char discarding_output; | |
276 | ||
87ed109f NB |
277 | /* Nonzero to skip evaluating part of an expression. */ |
278 | unsigned int skip_eval; | |
bc4071dd | 279 | |
7cf3f604 | 280 | /* Nonzero when tokenizing a deferred pragma. */ |
bc4071dd RH |
281 | unsigned char in_deferred_pragma; |
282 | ||
283 | /* Nonzero if the deferred pragma being handled allows macro expansion. */ | |
284 | unsigned char pragma_allow_expansion; | |
8121d2c3 NB |
285 | }; |
286 | ||
287 | /* Special nodes - identifiers with predefined significance. */ | |
288 | struct spec_nodes | |
289 | { | |
8121d2c3 | 290 | cpp_hashnode *n_defined; /* defined operator */ |
037313ae ZW |
291 | cpp_hashnode *n_true; /* C++ keyword true */ |
292 | cpp_hashnode *n_false; /* C++ keyword false */ | |
8121d2c3 | 293 | cpp_hashnode *n__VA_ARGS__; /* C99 vararg macros */ |
fb771b9d | 294 | cpp_hashnode *n__VA_OPT__; /* C++ vararg macros */ |
8121d2c3 NB |
295 | }; |
296 | ||
26aea073 NB |
297 | typedef struct _cpp_line_note _cpp_line_note; |
298 | struct _cpp_line_note | |
299 | { | |
300 | /* Location in the clean line the note refers to. */ | |
c812785a | 301 | const unsigned char *pos; |
26aea073 | 302 | |
41c32c98 NB |
303 | /* Type of note. The 9 'from' trigraph characters represent those |
304 | trigraphs, '\\' an escaped newline, ' ' an escaped newline with | |
00a81b8b JM |
305 | intervening space, 0 represents a note that has already been handled, |
306 | and anything else is invalid. */ | |
41c32c98 | 307 | unsigned int type; |
26aea073 NB |
308 | }; |
309 | ||
5d8ebbd8 | 310 | /* Represents the contents of a file cpplib has read in. */ |
27e2564a NB |
311 | struct cpp_buffer |
312 | { | |
c812785a RS |
313 | const unsigned char *cur; /* Current location. */ |
314 | const unsigned char *line_base; /* Start of current physical line. */ | |
315 | const unsigned char *next_line; /* Start of to-be-cleaned logical line. */ | |
cf551fba | 316 | |
c812785a RS |
317 | const unsigned char *buf; /* Entire character buffer. */ |
318 | const unsigned char *rlimit; /* Writable byte at end of file. */ | |
28937f11 JJ |
319 | const unsigned char *to_free; /* Pointer that should be freed when |
320 | popping the buffer. */ | |
26aea073 | 321 | |
c812785a RS |
322 | _cpp_line_note *notes; /* Array of notes. */ |
323 | unsigned int cur_note; /* Next note to process. */ | |
324 | unsigned int notes_used; /* Number of notes. */ | |
325 | unsigned int notes_cap; /* Size of allocated array. */ | |
27e2564a | 326 | |
27e2564a NB |
327 | struct cpp_buffer *prev; |
328 | ||
8f9b4009 NB |
329 | /* Pointer into the file table; non-NULL if this is a file buffer. |
330 | Used for include_next and to record control macros. */ | |
331 | struct _cpp_file *file; | |
27e2564a | 332 | |
be8ac3e2 GZ |
333 | /* Saved value of __TIMESTAMP__ macro - date and time of last modification |
334 | of the assotiated file. */ | |
335 | const unsigned char *timestamp; | |
336 | ||
27e2564a NB |
337 | /* Value of if_stack at start of this file. |
338 | Used to prohibit unmatched #endif (etc) in an include file. */ | |
339 | struct if_stack *if_stack; | |
340 | ||
26aea073 | 341 | /* True if we need to get the next clean line. */ |
a0be978a | 342 | bool need_line : 1; |
27e2564a NB |
343 | |
344 | /* True if we have already warned about C++ comments in this file. | |
345 | The warning happens only for C89 extended mode with -pedantic on, | |
346 | or for -Wtraditional, and only once per file (otherwise it would | |
347 | be far too noisy). */ | |
a0be978a | 348 | bool warned_cplusplus_comments : 1; |
27e2564a NB |
349 | |
350 | /* True if we don't process trigraphs and escaped newlines. True | |
351 | for preprocessed input, command line directives, and _Pragma | |
352 | buffers. */ | |
a0be978a | 353 | bool from_stage3 : 1; |
27e2564a | 354 | |
22234f56 PB |
355 | /* At EOF, a buffer is automatically popped. If RETURN_AT_EOF is |
356 | true, a CPP_EOF token is then returned. Otherwise, the next | |
357 | token from the enclosing buffer is returned. */ | |
a0be978a | 358 | bool return_at_eof : 1; |
ba133c96 | 359 | |
12f9df4e | 360 | /* One for a system header, two for a C system header file that therefore |
9ac97460 | 361 | needs to be extern "C" protected in C++, and zero otherwise. */ |
12f9df4e PB |
362 | unsigned char sysp; |
363 | ||
591e15a1 NB |
364 | /* The directory of the this buffer's file. Its NAME member is not |
365 | allocated, so we don't need to worry about freeing it. */ | |
8f9b4009 | 366 | struct cpp_dir dir; |
004cb263 | 367 | |
cf551fba EC |
368 | /* Descriptor for converting from the input character set to the |
369 | source character set. */ | |
370 | struct cset_converter input_cset_desc; | |
27e2564a NB |
371 | }; |
372 | ||
17e7cb85 KT |
373 | /* The list of saved macros by push_macro pragma. */ |
374 | struct def_pragma_macro { | |
375 | /* Chain element to previous saved macro. */ | |
376 | struct def_pragma_macro *next; | |
377 | /* Name of the macro. */ | |
378 | char *name; | |
379 | /* The stored macro content. */ | |
d6874138 KT |
380 | unsigned char *definition; |
381 | ||
382 | /* Definition line number. */ | |
620e594b | 383 | location_t line; |
d6874138 KT |
384 | /* If macro defined in system header. */ |
385 | unsigned int syshdr : 1; | |
386 | /* Nonzero if it has been expanded or had its existence tested. */ | |
387 | unsigned int used : 1; | |
388 | ||
389 | /* Mark if we save an undefined macro. */ | |
390 | unsigned int is_undef : 1; | |
aa23e73b JJ |
391 | /* Nonzero if it was a builtin macro. */ |
392 | unsigned int is_builtin : 1; | |
17e7cb85 KT |
393 | }; |
394 | ||
8121d2c3 NB |
395 | /* A cpp_reader encapsulates the "state" of a pre-processor run. |
396 | Applying cpp_get_token repeatedly yields a stream of pre-processor | |
397 | tokens. Usually, there is only one cpp_reader object active. */ | |
8121d2c3 NB |
398 | struct cpp_reader |
399 | { | |
400 | /* Top of buffer stack. */ | |
401 | cpp_buffer *buffer; | |
402 | ||
d97371e0 NB |
403 | /* Overlaid buffer (can be different after processing #include). */ |
404 | cpp_buffer *overlaid_buffer; | |
405 | ||
8121d2c3 NB |
406 | /* Lexer state. */ |
407 | struct lexer_state state; | |
408 | ||
67821e3a | 409 | /* Source line tracking. */ |
99b1c316 | 410 | class line_maps *line_table; |
1444f2ed | 411 | |
50410426 | 412 | /* The line of the '#' of the current directive. */ |
620e594b | 413 | location_t directive_line; |
8121d2c3 | 414 | |
b8af0ca5 | 415 | /* Memory buffers. */ |
8c3b2693 | 416 | _cpp_buff *a_buff; /* Aligned permanent storage. */ |
ece54d54 NB |
417 | _cpp_buff *u_buff; /* Unaligned permanent storage. */ |
418 | _cpp_buff *free_buffs; /* Free buffer chain. */ | |
b8af0ca5 | 419 | |
8121d2c3 NB |
420 | /* Context stack. */ |
421 | struct cpp_context base_context; | |
422 | struct cpp_context *context; | |
423 | ||
424 | /* If in_directive, the directive if known. */ | |
425 | const struct directive *directive; | |
426 | ||
21b11495 ZW |
427 | /* Token generated while handling a directive, if any. */ |
428 | cpp_token directive_result; | |
429 | ||
5ffeb913 TT |
430 | /* When expanding a macro at top-level, this is the location of the |
431 | macro invocation. */ | |
620e594b | 432 | location_t invocation_location; |
5ffeb913 | 433 | |
f8abc9ba DS |
434 | /* This is the node representing the macro being expanded at |
435 | top-level. The value of this data member is valid iff | |
a0be978a | 436 | cpp_in_macro_expansion_p() returns TRUE. */ |
f8abc9ba DS |
437 | cpp_hashnode *top_most_macro_node; |
438 | ||
828a7f76 DS |
439 | /* Nonzero if we are about to expand a macro. Note that if we are |
440 | really expanding a macro, the function macro_of_context returns | |
441 | the macro being expanded and this flag is set to false. Client | |
a0be978a | 442 | code should use the function cpp_in_macro_expansion_p to know if we |
828a7f76 DS |
443 | are either about to expand a macro, or are actually expanding |
444 | one. */ | |
445 | bool about_to_expand_macro_p; | |
5ffeb913 | 446 | |
5793b276 | 447 | /* Search paths for include files. */ |
8f9b4009 NB |
448 | struct cpp_dir *quote_include; /* "" */ |
449 | struct cpp_dir *bracket_include; /* <> */ | |
450 | struct cpp_dir no_search_path; /* No path. */ | |
451 | ||
49634b3a NB |
452 | /* Chain of all hashed _cpp_file instances. */ |
453 | struct _cpp_file *all_files; | |
8f9b4009 | 454 | |
4dc299fb PB |
455 | struct _cpp_file *main_file; |
456 | ||
8f9b4009 | 457 | /* File and directory hash table. */ |
bf42e45b | 458 | struct htab *file_hash; |
a23ee064 | 459 | struct htab *dir_hash; |
97f6bd40 | 460 | struct file_hash_entry_pool *file_hash_entries; |
8f9b4009 | 461 | |
0b4cafec ILT |
462 | /* Negative path lookup hash table. */ |
463 | struct htab *nonexistent_file_hash; | |
464 | struct obstack nonexistent_file_ob; | |
465 | ||
8f9b4009 NB |
466 | /* Nonzero means don't look for #include "foo" the source-file |
467 | directory. */ | |
468 | bool quote_ignores_source_dir; | |
469 | ||
83a00410 | 470 | /* Nonzero if any file has contained #pragma once or #import has |
49634b3a NB |
471 | been used. */ |
472 | bool seen_once_only; | |
5793b276 | 473 | |
6356f892 | 474 | /* Multiple include optimization. */ |
8121d2c3 NB |
475 | const cpp_hashnode *mi_cmacro; |
476 | const cpp_hashnode *mi_ind_cmacro; | |
6d18adbc | 477 | bool mi_valid; |
8121d2c3 | 478 | |
5fddcffc NB |
479 | /* Lexing. */ |
480 | cpp_token *cur_token; | |
481 | tokenrun base_run, *cur_run; | |
bdcbe496 | 482 | unsigned int lookaheads; |
5fddcffc | 483 | |
da7d8304 | 484 | /* Nonzero prevents the lexer from re-using the token runs. */ |
5fddcffc NB |
485 | unsigned int keep_tokens; |
486 | ||
8121d2c3 NB |
487 | /* Buffer to hold macro definition string. */ |
488 | unsigned char *macro_buffer; | |
489 | unsigned int macro_buffer_len; | |
490 | ||
6b88314c ZW |
491 | /* Descriptor for converting from the source character set to the |
492 | execution character set. */ | |
493 | struct cset_converter narrow_cset_desc; | |
e6cc3a24 | 494 | |
2c6e3f55 JJ |
495 | /* Descriptor for converting from the source character set to the |
496 | UTF-8 execution character set. */ | |
497 | struct cset_converter utf8_cset_desc; | |
498 | ||
b6baa67d KVH |
499 | /* Descriptor for converting from the source character set to the |
500 | UTF-16 execution character set. */ | |
501 | struct cset_converter char16_cset_desc; | |
502 | ||
503 | /* Descriptor for converting from the source character set to the | |
504 | UTF-32 execution character set. */ | |
505 | struct cset_converter char32_cset_desc; | |
506 | ||
6b88314c ZW |
507 | /* Descriptor for converting from the source character set to the |
508 | wide execution character set. */ | |
509 | struct cset_converter wide_cset_desc; | |
e6cc3a24 | 510 | |
278c4662 | 511 | /* Date and time text. Calculated together if either is requested. */ |
c812785a RS |
512 | const unsigned char *date; |
513 | const unsigned char *time; | |
8121d2c3 | 514 | |
4b5f564a NS |
515 | /* Time stamp, set idempotently lazily. */ |
516 | time_t time_stamp; | |
517 | int time_stamp_kind; /* Or errno. */ | |
174f6622 | 518 | |
5abe05b4 | 519 | /* A token forcing paste avoidance, and one demarking macro arguments. */ |
4ed5bcfb | 520 | cpp_token avoid_paste; |
5abe05b4 | 521 | cpp_token endarg; |
4ed5bcfb | 522 | |
f4ff5a69 | 523 | /* Opaque handle to the dependencies of mkdeps.c. */ |
99b1c316 | 524 | class mkdeps *deps; |
8121d2c3 NB |
525 | |
526 | /* Obstack holding all macro hash nodes. This never shrinks. | |
a2566ae9 | 527 | See identifiers.c */ |
2a967f3d | 528 | struct obstack hash_ob; |
8121d2c3 NB |
529 | |
530 | /* Obstack holding buffer and conditional structures. This is a | |
a2566ae9 | 531 | real stack. See directives.c. */ |
2a967f3d | 532 | struct obstack buffer_ob; |
8121d2c3 NB |
533 | |
534 | /* Pragma table - dynamic, because a library user can add to the | |
535 | list of recognized pragmas. */ | |
536 | struct pragma_entry *pragmas; | |
537 | ||
48c4721e | 538 | /* Call backs to cpplib client. */ |
8121d2c3 NB |
539 | struct cpp_callbacks cb; |
540 | ||
df383483 | 541 | /* Identifier hash table. */ |
2a967f3d NB |
542 | struct ht *hash_table; |
543 | ||
87ed109f NB |
544 | /* Expression parser stack. */ |
545 | struct op *op_stack, *op_limit; | |
546 | ||
8121d2c3 NB |
547 | /* User visible options. */ |
548 | struct cpp_options opts; | |
549 | ||
550 | /* Special nodes - identifiers with predefined significance to the | |
551 | preprocessor. */ | |
552 | struct spec_nodes spec_nodes; | |
553 | ||
2a967f3d | 554 | /* Whether cpplib owns the hashtable. */ |
8f9b4009 | 555 | bool our_hashtable; |
004cb263 | 556 | |
1a76916c NB |
557 | /* Traditional preprocessing output buffer (a logical line). */ |
558 | struct | |
559 | { | |
c812785a RS |
560 | unsigned char *base; |
561 | unsigned char *limit; | |
562 | unsigned char *cur; | |
620e594b | 563 | location_t first_line; |
1a76916c NB |
564 | } out; |
565 | ||
a2566ae9 | 566 | /* Used for buffer overlays by traditional.c. */ |
c812785a | 567 | const unsigned char *saved_cur, *saved_rlimit, *saved_line_base; |
12f9df4e | 568 | |
17211ab5 GK |
569 | /* A saved list of the defined macros, for dependency checking |
570 | of precompiled headers. */ | |
571 | struct cpp_savedstate *savedstate; | |
a702045a OW |
572 | |
573 | /* Next value of __COUNTER__ macro. */ | |
574 | unsigned int counter; | |
631d0d36 MG |
575 | |
576 | /* Table of comments, when state.save_comments is true. */ | |
577 | cpp_comment_table comments; | |
17e7cb85 KT |
578 | |
579 | /* List of saved macros by push_macro. */ | |
580 | struct def_pragma_macro *pushed_macros; | |
e3dfef44 | 581 | |
f3f6029d | 582 | /* If non-zero, the lexer will use this location for the next token |
e3dfef44 | 583 | instead of getting a location from the linemap. */ |
620e594b | 584 | location_t forced_token_location; |
8121d2c3 NB |
585 | }; |
586 | ||
f6bbde28 | 587 | /* Character classes. Based on the more primitive macros in safe-ctype.h. |
88ae23e7 | 588 | If the definition of `numchar' looks odd to you, please look up the |
91fcd158 NB |
589 | definition of a pp-number in the C standard [section 6.4.8 of C99]. |
590 | ||
591 | In the unlikely event that characters other than \r and \n enter | |
a2566ae9 | 592 | the set is_vspace, the macro handle_newline() in lex.c must be |
91fcd158 | 593 | updated. */ |
ae79697b | 594 | #define _dollar_ok(x) ((x) == '$' && CPP_OPTION (pfile, dollars_in_ident)) |
88ae23e7 | 595 | |
f6bbde28 ZW |
596 | #define is_idchar(x) (ISIDNUM(x) || _dollar_ok(x)) |
597 | #define is_numchar(x) ISIDNUM(x) | |
598 | #define is_idstart(x) (ISIDST(x) || _dollar_ok(x)) | |
599 | #define is_numstart(x) ISDIGIT(x) | |
600 | #define is_hspace(x) ISBLANK(x) | |
601 | #define is_vspace(x) IS_VSPACE(x) | |
602 | #define is_nvspace(x) IS_NVSPACE(x) | |
603 | #define is_space(x) IS_SPACE_OR_NUL(x) | |
88ae23e7 | 604 | |
18f5df94 JJ |
605 | #define SEEN_EOL() (pfile->cur_token[-1].type == CPP_EOF) |
606 | ||
f6bbde28 | 607 | /* This table is constant if it can be initialized at compile time, |
88ae23e7 ZW |
608 | which is the case if cpp was compiled with GCC >=2.7, or another |
609 | compiler that supports C99. */ | |
61d0346d | 610 | #if HAVE_DESIGNATED_INITIALIZERS |
61d0346d | 611 | extern const unsigned char _cpp_trigraph_map[UCHAR_MAX + 1]; |
88ae23e7 | 612 | #else |
61d0346d | 613 | extern unsigned char _cpp_trigraph_map[UCHAR_MAX + 1]; |
88ae23e7 ZW |
614 | #endif |
615 | ||
c5d725c0 NS |
616 | #if !defined (HAVE_UCHAR) && !defined (IN_GCC) |
617 | typedef unsigned char uchar; | |
618 | #endif | |
619 | ||
620 | #define UC (const uchar *) /* Intended use: UC"string" */ | |
621 | ||
88ae23e7 ZW |
622 | /* Macros. */ |
623 | ||
12f9df4e PB |
624 | static inline int cpp_in_system_header (cpp_reader *); |
625 | static inline int | |
626 | cpp_in_system_header (cpp_reader *pfile) | |
627 | { | |
628 | return pfile->buffer ? pfile->buffer->sysp : 0; | |
629 | } | |
e3339d0f JM |
630 | #define CPP_PEDANTIC(PF) CPP_OPTION (PF, cpp_pedantic) |
631 | #define CPP_WTRADITIONAL(PF) CPP_OPTION (PF, cpp_warn_traditional) | |
88ae23e7 | 632 | |
705e2d28 TT |
633 | static inline int cpp_in_primary_file (cpp_reader *); |
634 | static inline int | |
635 | cpp_in_primary_file (cpp_reader *pfile) | |
636 | { | |
637 | return pfile->line_table->depth == 1; | |
638 | } | |
639 | ||
ad1a3914 NS |
640 | /* True if NODE is a macro for the purposes of ifdef, defined etc. */ |
641 | inline bool _cpp_defined_macro_p (cpp_hashnode *node) | |
642 | { | |
643 | /* Do not treat conditional macros as being defined. This is due to | |
644 | the powerpc port using conditional macros for 'vector', 'bool', | |
645 | and 'pixel' to act as conditional keywords. This messes up tests | |
646 | like #ifndef bool. */ | |
647 | return cpp_macro_p (node) && !(node->flags & NODE_CONDITIONAL); | |
648 | } | |
649 | ||
a2566ae9 | 650 | /* In macro.c */ |
e9a2e208 NS |
651 | extern void _cpp_notify_macro_use (cpp_reader *pfile, cpp_hashnode *node, |
652 | location_t loc); | |
653 | inline void _cpp_maybe_notify_macro_use (cpp_reader *pfile, cpp_hashnode *node, | |
654 | location_t loc) | |
3f6677f4 NS |
655 | { |
656 | if (!(node->flags & NODE_USED)) | |
e9a2e208 | 657 | _cpp_notify_macro_use (pfile, node, loc); |
3f6677f4 | 658 | } |
10f04917 | 659 | extern cpp_macro *_cpp_new_macro (cpp_reader *, cpp_macro_kind, void *); |
6cf87ca4 ZW |
660 | extern void _cpp_free_definition (cpp_hashnode *); |
661 | extern bool _cpp_create_definition (cpp_reader *, cpp_hashnode *); | |
662 | extern void _cpp_pop_context (cpp_reader *); | |
663 | extern void _cpp_push_text_context (cpp_reader *, cpp_hashnode *, | |
c812785a | 664 | const unsigned char *, size_t); |
729a01f7 | 665 | extern bool _cpp_save_parameter (cpp_reader *, unsigned, cpp_hashnode *, |
be5ffc59 | 666 | cpp_hashnode *); |
729a01f7 | 667 | extern void _cpp_unsave_parameters (cpp_reader *, unsigned); |
6cf87ca4 ZW |
668 | extern bool _cpp_arguments_ok (cpp_reader *, cpp_macro *, const cpp_hashnode *, |
669 | unsigned int); | |
c812785a | 670 | extern const unsigned char *_cpp_builtin_macro_text (cpp_reader *, |
64824205 | 671 | cpp_hashnode *, |
620e594b | 672 | location_t = 0); |
bc4071dd RH |
673 | extern int _cpp_warn_if_unused_macro (cpp_reader *, cpp_hashnode *, void *); |
674 | extern void _cpp_push_token_context (cpp_reader *, cpp_hashnode *, | |
675 | const cpp_token *, unsigned int); | |
5950c3c9 | 676 | extern void _cpp_backup_tokens_direct (cpp_reader *, unsigned int); |
bc4071dd | 677 | |
a2566ae9 | 678 | /* In identifiers.c */ |
0823efed | 679 | extern void _cpp_init_hashtable (cpp_reader *, cpp_hash_table *); |
6cf87ca4 | 680 | extern void _cpp_destroy_hashtable (cpp_reader *); |
bb52fa7f | 681 | |
a2566ae9 | 682 | /* In files.c */ |
4623a6f2 NS |
683 | enum _cpp_find_file_kind |
684 | { _cpp_FFK_NORMAL, _cpp_FFK_FAKE, _cpp_FFK_PRE_INCLUDE, _cpp_FFK_HAS_INCLUDE }; | |
6568f34b | 685 | extern _cpp_file *_cpp_find_file (cpp_reader *, const char *, cpp_dir *, |
4623a6f2 | 686 | int angle, _cpp_find_file_kind, location_t); |
4dc299fb | 687 | extern bool _cpp_find_failed (_cpp_file *); |
49634b3a | 688 | extern void _cpp_mark_file_once_only (cpp_reader *, struct _cpp_file *); |
6cf87ca4 | 689 | extern void _cpp_fake_include (cpp_reader *, const char *); |
b0d11f1e | 690 | extern bool _cpp_stack_file (cpp_reader *, _cpp_file*, include_type, location_t); |
8f9b4009 | 691 | extern bool _cpp_stack_include (cpp_reader *, const char *, int, |
620e594b | 692 | enum include_type, location_t); |
6cf87ca4 ZW |
693 | extern int _cpp_compare_file_date (cpp_reader *, const char *, int); |
694 | extern void _cpp_report_missing_guards (cpp_reader *); | |
8f9b4009 NB |
695 | extern void _cpp_init_files (cpp_reader *); |
696 | extern void _cpp_cleanup_files (cpp_reader *); | |
28937f11 JJ |
697 | extern void _cpp_pop_file_buffer (cpp_reader *, struct _cpp_file *, |
698 | const unsigned char *); | |
73e61092 GK |
699 | extern bool _cpp_save_file_entries (cpp_reader *pfile, FILE *f); |
700 | extern bool _cpp_read_file_entries (cpp_reader *, FILE *); | |
b492b686 | 701 | extern const char *_cpp_get_file_name (_cpp_file *); |
be8ac3e2 | 702 | extern struct stat *_cpp_get_file_stat (_cpp_file *); |
a15f7cb8 ESR |
703 | extern bool _cpp_has_header (cpp_reader *, const char *, int, |
704 | enum include_type); | |
88ae23e7 | 705 | |
a2566ae9 | 706 | /* In expr.c */ |
d750887f | 707 | extern bool _cpp_parse_expr (cpp_reader *, bool); |
6cf87ca4 | 708 | extern struct op *_cpp_expand_op_stack (cpp_reader *); |
88ae23e7 | 709 | |
a2566ae9 | 710 | /* In lex.c */ |
6cf87ca4 ZW |
711 | extern void _cpp_process_line_notes (cpp_reader *, int); |
712 | extern void _cpp_clean_line (cpp_reader *); | |
713 | extern bool _cpp_get_fresh_line (cpp_reader *); | |
714 | extern bool _cpp_skip_block_comment (cpp_reader *); | |
715 | extern cpp_token *_cpp_temp_token (cpp_reader *); | |
716 | extern const cpp_token *_cpp_lex_token (cpp_reader *); | |
717 | extern cpp_token *_cpp_lex_direct (cpp_reader *); | |
be5ffc59 | 718 | extern unsigned char *_cpp_spell_ident_ucns (unsigned char *, cpp_hashnode *); |
6cf87ca4 ZW |
719 | extern int _cpp_equiv_tokens (const cpp_token *, const cpp_token *); |
720 | extern void _cpp_init_tokenrun (tokenrun *, unsigned int); | |
17e7cb85 | 721 | extern cpp_hashnode *_cpp_lex_identifier (cpp_reader *, const char *); |
ad2305ad | 722 | extern int _cpp_remaining_tokens_num_in_context (cpp_context *); |
b0c084b7 | 723 | extern void _cpp_init_lexer (void); |
10f04917 NS |
724 | static inline void *_cpp_reserve_room (cpp_reader *pfile, size_t have, |
725 | size_t extra) | |
726 | { | |
727 | if (BUFF_ROOM (pfile->a_buff) < (have + extra)) | |
728 | _cpp_extend_buff (pfile, &pfile->a_buff, extra); | |
729 | return BUFF_FRONT (pfile->a_buff); | |
730 | } | |
731 | extern void *_cpp_commit_buff (cpp_reader *pfile, size_t size); | |
45b966db | 732 | |
a2566ae9 | 733 | /* In init.c. */ |
6cf87ca4 | 734 | extern void _cpp_maybe_push_include_file (cpp_reader *); |
cfc93532 | 735 | extern const char *cpp_named_operator2name (enum cpp_ttype type); |
aa23e73b JJ |
736 | extern void _cpp_restore_special_builtin (cpp_reader *pfile, |
737 | struct def_pragma_macro *); | |
d7bc7a98 | 738 | |
a2566ae9 | 739 | /* In directives.c */ |
6cf87ca4 | 740 | extern int _cpp_test_assertion (cpp_reader *, unsigned int *); |
a0be978a | 741 | extern int _cpp_handle_directive (cpp_reader *, bool); |
6cf87ca4 ZW |
742 | extern void _cpp_define_builtin (cpp_reader *, const char *); |
743 | extern char ** _cpp_save_pragma_names (cpp_reader *); | |
744 | extern void _cpp_restore_pragma_names (cpp_reader *, char **); | |
620e594b | 745 | extern int _cpp_do__Pragma (cpp_reader *, location_t); |
6cf87ca4 ZW |
746 | extern void _cpp_init_directives (cpp_reader *); |
747 | extern void _cpp_init_internal_pragmas (cpp_reader *); | |
748 | extern void _cpp_do_file_change (cpp_reader *, enum lc_reason, const char *, | |
1bb64668 | 749 | linenum_type, unsigned int); |
6cf87ca4 | 750 | extern void _cpp_pop_buffer (cpp_reader *); |
a15f7cb8 | 751 | extern char *_cpp_bracket_include (cpp_reader *); |
12cf91fe | 752 | |
a2566ae9 | 753 | /* In traditional.c. */ |
fb136e35 | 754 | extern bool _cpp_scan_out_logical_line (cpp_reader *, cpp_macro *, bool); |
6cf87ca4 | 755 | extern bool _cpp_read_logical_line_trad (cpp_reader *); |
c812785a RS |
756 | extern void _cpp_overlay_buffer (cpp_reader *pfile, const unsigned char *, |
757 | size_t); | |
6cf87ca4 | 758 | extern void _cpp_remove_overlay (cpp_reader *); |
10f04917 | 759 | extern cpp_macro *_cpp_create_trad_definition (cpp_reader *); |
6cf87ca4 ZW |
760 | extern bool _cpp_expansions_different_trad (const cpp_macro *, |
761 | const cpp_macro *); | |
c812785a RS |
762 | extern unsigned char *_cpp_copy_replacement_text (const cpp_macro *, |
763 | unsigned char *); | |
6cf87ca4 | 764 | extern size_t _cpp_replacement_text_len (const cpp_macro *); |
004cb263 | 765 | |
a2566ae9 | 766 | /* In charset.c. */ |
50668cf6 GK |
767 | |
768 | /* The normalization state at this point in the sequence. | |
769 | It starts initialized to all zeros, and at the end | |
770 | 'level' is the normalization level of the sequence. */ | |
771 | ||
772 | struct normalize_state | |
773 | { | |
d3f4ff8b | 774 | /* The previous starter character. */ |
50668cf6 | 775 | cppchar_t previous; |
d3f4ff8b JM |
776 | /* The combining class of the previous character (whether or not a |
777 | starter). */ | |
50668cf6 GK |
778 | unsigned char prev_class; |
779 | /* The lowest normalization level so far. */ | |
780 | enum cpp_normalize_level level; | |
781 | }; | |
782 | #define INITIAL_NORMALIZE_STATE { 0, 0, normalized_KC } | |
783 | #define NORMALIZE_STATE_RESULT(st) ((st)->level) | |
784 | ||
d3f4ff8b | 785 | /* We saw a character C that matches ISIDNUM(), update a |
50668cf6 | 786 | normalize_state appropriately. */ |
d3f4ff8b JM |
787 | #define NORMALIZE_STATE_UPDATE_IDNUM(st, c) \ |
788 | ((st)->previous = (c), (st)->prev_class = 0) | |
50668cf6 | 789 | |
fbb22910 PC |
790 | extern bool _cpp_valid_ucn (cpp_reader *, const unsigned char **, |
791 | const unsigned char *, int, | |
792 | struct normalize_state *state, | |
88fa5555 DM |
793 | cppchar_t *, |
794 | source_range *char_range, | |
795 | cpp_string_location_reader *loc_reader); | |
7d112d66 LH |
796 | |
797 | extern bool _cpp_valid_utf8 (cpp_reader *pfile, | |
798 | const uchar **pstr, | |
799 | const uchar *limit, | |
800 | int identifier_pos, | |
801 | struct normalize_state *nst, | |
802 | cppchar_t *cp); | |
803 | ||
6b88314c | 804 | extern void _cpp_destroy_iconv (cpp_reader *); |
c812785a RS |
805 | extern unsigned char *_cpp_convert_input (cpp_reader *, const char *, |
806 | unsigned char *, size_t, size_t, | |
688e7a53 | 807 | const unsigned char **, off_t *); |
16dd5cfe | 808 | extern const char *_cpp_default_encoding (void); |
47e20491 GK |
809 | extern cpp_hashnode * _cpp_interpret_identifier (cpp_reader *pfile, |
810 | const unsigned char *id, | |
811 | size_t len); | |
1613e52b | 812 | |
c31a6508 | 813 | /* Utility routines and macros. */ |
c812785a | 814 | #define DSC(str) (const unsigned char *)str, sizeof str - 1 |
c31a6508 | 815 | |
8121d2c3 NB |
816 | /* These are inline functions instead of macros so we can get type |
817 | checking. */ | |
c812785a RS |
818 | static inline int ustrcmp (const unsigned char *, const unsigned char *); |
819 | static inline int ustrncmp (const unsigned char *, const unsigned char *, | |
820 | size_t); | |
821 | static inline size_t ustrlen (const unsigned char *); | |
0c1dace3 PC |
822 | static inline const unsigned char *uxstrdup (const unsigned char *); |
823 | static inline const unsigned char *ustrchr (const unsigned char *, int); | |
c812785a | 824 | static inline int ufputs (const unsigned char *, FILE *); |
8121d2c3 | 825 | |
be0f1e54 PB |
826 | /* Use a const char for the second parameter since it is usually a literal. */ |
827 | static inline int ustrcspn (const unsigned char *, const char *); | |
828 | ||
8121d2c3 | 829 | static inline int |
c812785a | 830 | ustrcmp (const unsigned char *s1, const unsigned char *s2) |
8121d2c3 NB |
831 | { |
832 | return strcmp ((const char *)s1, (const char *)s2); | |
833 | } | |
834 | ||
835 | static inline int | |
c812785a | 836 | ustrncmp (const unsigned char *s1, const unsigned char *s2, size_t n) |
8121d2c3 NB |
837 | { |
838 | return strncmp ((const char *)s1, (const char *)s2, n); | |
839 | } | |
840 | ||
be0f1e54 PB |
841 | static inline int |
842 | ustrcspn (const unsigned char *s1, const char *s2) | |
843 | { | |
844 | return strcspn ((const char *)s1, s2); | |
845 | } | |
846 | ||
8121d2c3 | 847 | static inline size_t |
c812785a | 848 | ustrlen (const unsigned char *s1) |
8121d2c3 NB |
849 | { |
850 | return strlen ((const char *)s1); | |
851 | } | |
852 | ||
0c1dace3 | 853 | static inline const unsigned char * |
c812785a | 854 | uxstrdup (const unsigned char *s1) |
8121d2c3 | 855 | { |
0c1dace3 | 856 | return (const unsigned char *) xstrdup ((const char *)s1); |
8121d2c3 NB |
857 | } |
858 | ||
0c1dace3 | 859 | static inline const unsigned char * |
c812785a | 860 | ustrchr (const unsigned char *s1, int c) |
8121d2c3 | 861 | { |
0c1dace3 | 862 | return (const unsigned char *) strchr ((const char *)s1, c); |
8121d2c3 NB |
863 | } |
864 | ||
865 | static inline int | |
c812785a | 866 | ufputs (const unsigned char *s, FILE *f) |
8121d2c3 NB |
867 | { |
868 | return fputs ((const char *)s, f); | |
869 | } | |
870 | ||
1f8ac759 | 871 | /* In line-map.c. */ |
46427374 TT |
872 | |
873 | /* Create and return a virtual location for a token that is part of a | |
874 | macro expansion-list at a macro expansion point. See the comment | |
875 | inside struct line_map_macro to see what an expansion-list exactly | |
876 | is. | |
877 | ||
878 | A call to this function must come after a call to | |
879 | linemap_enter_macro. | |
880 | ||
881 | MAP is the map into which the source location is created. TOKEN_NO | |
882 | is the index of the token in the macro replacement-list, starting | |
883 | at number 0. | |
884 | ||
885 | ORIG_LOC is the location of the token outside of this macro | |
886 | expansion. If the token comes originally from the macro | |
887 | definition, it is the locus in the macro definition; otherwise it | |
888 | is a location in the context of the caller of this macro expansion | |
889 | (which is a virtual location or a source location if the caller is | |
890 | itself a macro expansion or not). | |
891 | ||
892 | MACRO_DEFINITION_LOC is the location in the macro definition, | |
893 | either of the token itself or of a macro parameter that it | |
894 | replaces. */ | |
620e594b DM |
895 | location_t linemap_add_macro_token (const line_map_macro *, |
896 | unsigned int, | |
897 | location_t, | |
898 | location_t); | |
46427374 TT |
899 | |
900 | /* Return the source line number corresponding to source location | |
901 | LOCATION. SET is the line map set LOCATION comes from. If | |
902 | LOCATION is the location of token that is part of the | |
903 | expansion-list of a macro expansion return the line number of the | |
904 | macro expansion point. */ | |
99b1c316 | 905 | int linemap_get_expansion_line (class line_maps *, |
620e594b | 906 | location_t); |
46427374 TT |
907 | |
908 | /* Return the path of the file corresponding to source code location | |
909 | LOCATION. | |
910 | ||
911 | If LOCATION is the location of a token that is part of the | |
912 | replacement-list of a macro expansion return the file path of the | |
913 | macro expansion point. | |
914 | ||
915 | SET is the line map set LOCATION comes from. */ | |
99b1c316 | 916 | const char* linemap_get_expansion_filename (class line_maps *, |
620e594b | 917 | location_t); |
46427374 | 918 | |
4851089f ILT |
919 | #ifdef __cplusplus |
920 | } | |
921 | #endif | |
922 | ||
4f4e53dd | 923 | #endif /* ! LIBCPP_INTERNAL_H */ |