Mercurial > hg > CbC > CbC_gcc
annotate libcpp/internal.h @ 111:04ced10e8804
gcc 7
author | kono |
---|---|
date | Fri, 27 Oct 2017 22:46:09 +0900 |
parents | f6334be47118 |
children | 84e7813d76e9 |
rev | line source |
---|---|
0 | 1 /* Part of CPP library. |
111 | 2 Copyright (C) 1997-2017 Free Software Foundation, Inc. |
0 | 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 | |
6 Free Software Foundation; either version 3, or (at your option) any | |
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 | |
15 along with this program; see the file COPYING3. If not see | |
16 <http://www.gnu.org/licenses/>. */ | |
17 | |
18 /* This header defines all the internal data structures and functions | |
19 that need to be visible across files. It should not be used outside | |
20 cpplib. */ | |
21 | |
22 #ifndef LIBCPP_INTERNAL_H | |
23 #define LIBCPP_INTERNAL_H | |
24 | |
25 #include "symtab.h" | |
26 #include "cpp-id-data.h" | |
27 | |
28 #if HAVE_ICONV | |
29 #include <iconv.h> | |
30 #else | |
31 #define HAVE_ICONV 0 | |
32 typedef int iconv_t; /* dummy */ | |
33 #endif | |
34 | |
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
47
diff
changeset
|
35 #ifdef __cplusplus |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
47
diff
changeset
|
36 extern "C" { |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
47
diff
changeset
|
37 #endif |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
47
diff
changeset
|
38 |
0 | 39 struct directive; /* Deliberately incomplete. */ |
40 struct pending_option; | |
41 struct op; | |
42 struct _cpp_strbuf; | |
43 | |
44 typedef bool (*convert_f) (iconv_t, const unsigned char *, size_t, | |
45 struct _cpp_strbuf *); | |
46 struct cset_converter | |
47 { | |
48 convert_f func; | |
49 iconv_t cd; | |
50 int width; | |
51 }; | |
52 | |
53 #define BITS_PER_CPPCHAR_T (CHAR_BIT * sizeof (cppchar_t)) | |
54 | |
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' \ | |
59 || (((prevc) == 'p' || (prevc) == 'P') \ | |
60 && CPP_OPTION (pfile, extended_numbers)))) | |
61 | |
111 | 62 #define DIGIT_SEP(c) ((c) == '\'' && CPP_OPTION (pfile, digit_separators)) |
63 | |
0 | 64 #define CPP_OPTION(PFILE, OPTION) ((PFILE)->opts.OPTION) |
65 #define CPP_BUFFER(PFILE) ((PFILE)->buffer) | |
66 #define CPP_BUF_COLUMN(BUF, CUR) ((CUR) - (BUF)->line_base) | |
67 #define CPP_BUF_COL(BUF) CPP_BUF_COLUMN(BUF, (BUF)->cur) | |
68 | |
69 #define CPP_INCREMENT_LINE(PFILE, COLS_HINT) do { \ | |
70 const struct line_maps *line_table = PFILE->line_table; \ | |
111 | 71 const struct line_map_ordinary *map = \ |
72 LINEMAPS_LAST_ORDINARY_MAP (line_table); \ | |
0 | 73 linenum_type line = SOURCE_LINE (map, line_table->highest_line); \ |
74 linemap_line_start (PFILE->line_table, line + 1, COLS_HINT); \ | |
75 } while (0) | |
76 | |
77 /* Maximum nesting of cpp_buffers. We use a static limit, partly for | |
78 efficiency, and partly to limit runaway recursion. */ | |
79 #define CPP_STACK_MAX 200 | |
80 | |
81 /* Host alignment handling. */ | |
82 struct dummy | |
83 { | |
84 char c; | |
85 union | |
86 { | |
87 double d; | |
88 int *p; | |
89 } u; | |
90 }; | |
91 | |
92 #define DEFAULT_ALIGNMENT offsetof (struct dummy, u) | |
93 #define CPP_ALIGN2(size, align) (((size) + ((align) - 1)) & ~((align) - 1)) | |
94 #define CPP_ALIGN(size) CPP_ALIGN2 (size, DEFAULT_ALIGNMENT) | |
95 | |
96 #define _cpp_mark_macro_used(NODE) do { \ | |
97 if ((NODE)->type == NT_MACRO && !((NODE)->flags & NODE_BUILTIN)) \ | |
98 (NODE)->value.macro->used = 1; } while (0) | |
99 | |
100 /* A generic memory buffer, and operations on it. */ | |
101 typedef struct _cpp_buff _cpp_buff; | |
102 struct _cpp_buff | |
103 { | |
104 struct _cpp_buff *next; | |
105 unsigned char *base, *cur, *limit; | |
106 }; | |
107 | |
108 extern _cpp_buff *_cpp_get_buff (cpp_reader *, size_t); | |
109 extern void _cpp_release_buff (cpp_reader *, _cpp_buff *); | |
110 extern void _cpp_extend_buff (cpp_reader *, _cpp_buff **, size_t); | |
111 extern _cpp_buff *_cpp_append_extend_buff (cpp_reader *, _cpp_buff *, size_t); | |
112 extern void _cpp_free_buff (_cpp_buff *); | |
113 extern unsigned char *_cpp_aligned_alloc (cpp_reader *, size_t); | |
114 extern unsigned char *_cpp_unaligned_alloc (cpp_reader *, size_t); | |
115 | |
116 #define BUFF_ROOM(BUFF) (size_t) ((BUFF)->limit - (BUFF)->cur) | |
117 #define BUFF_FRONT(BUFF) ((BUFF)->cur) | |
118 #define BUFF_LIMIT(BUFF) ((BUFF)->limit) | |
119 | |
120 /* #include types. */ | |
111 | 121 enum include_type {IT_INCLUDE, IT_INCLUDE_NEXT, IT_IMPORT, IT_CMDLINE, IT_DEFAULT}; |
0 | 122 |
123 union utoken | |
124 { | |
125 const cpp_token *token; | |
126 const cpp_token **ptoken; | |
127 }; | |
128 | |
129 /* A "run" of tokens; part of a chain of runs. */ | |
130 typedef struct tokenrun tokenrun; | |
131 struct tokenrun | |
132 { | |
133 tokenrun *next, *prev; | |
134 cpp_token *base, *limit; | |
135 }; | |
136 | |
137 /* Accessor macros for struct cpp_context. */ | |
138 #define FIRST(c) ((c)->u.iso.first) | |
139 #define LAST(c) ((c)->u.iso.last) | |
140 #define CUR(c) ((c)->u.trad.cur) | |
141 #define RLIMIT(c) ((c)->u.trad.rlimit) | |
142 | |
111 | 143 /* This describes some additional data that is added to the macro |
144 token context of type cpp_context, when -ftrack-macro-expansion is | |
145 on. */ | |
146 typedef struct | |
147 { | |
148 /* The node of the macro we are referring to. */ | |
149 cpp_hashnode *macro_node; | |
150 /* This buffer contains an array of virtual locations. The virtual | |
151 location at index 0 is the virtual location of the token at index | |
152 0 in the current instance of cpp_context; similarly for all the | |
153 other virtual locations. */ | |
154 source_location *virt_locs; | |
155 /* This is a pointer to the current virtual location. This is used | |
156 to iterate over the virtual locations while we iterate over the | |
157 tokens they belong to. */ | |
158 source_location *cur_virt_loc; | |
159 } macro_context; | |
160 | |
161 /* The kind of tokens carried by a cpp_context. */ | |
162 enum context_tokens_kind { | |
163 /* This is the value of cpp_context::tokens_kind if u.iso.first | |
164 contains an instance of cpp_token **. */ | |
165 TOKENS_KIND_INDIRECT, | |
166 /* This is the value of cpp_context::tokens_kind if u.iso.first | |
167 contains an instance of cpp_token *. */ | |
168 TOKENS_KIND_DIRECT, | |
169 /* This is the value of cpp_context::tokens_kind when the token | |
170 context contains tokens resulting from macro expansion. In that | |
171 case struct cpp_context::macro points to an instance of struct | |
172 macro_context. This is used only when the | |
173 -ftrack-macro-expansion flag is on. */ | |
174 TOKENS_KIND_EXTENDED | |
175 }; | |
176 | |
0 | 177 typedef struct cpp_context cpp_context; |
178 struct cpp_context | |
179 { | |
180 /* Doubly-linked list. */ | |
181 cpp_context *next, *prev; | |
182 | |
183 union | |
184 { | |
185 /* For ISO macro expansion. Contexts other than the base context | |
186 are contiguous tokens. e.g. macro expansions, expanded | |
187 argument tokens. */ | |
188 struct | |
189 { | |
190 union utoken first; | |
191 union utoken last; | |
192 } iso; | |
193 | |
194 /* For traditional macro expansion. */ | |
195 struct | |
196 { | |
197 const unsigned char *cur; | |
198 const unsigned char *rlimit; | |
199 } trad; | |
200 } u; | |
201 | |
202 /* If non-NULL, a buffer used for storage related to this context. | |
203 When the context is popped, the buffer is released. */ | |
204 _cpp_buff *buff; | |
205 | |
111 | 206 /* If tokens_kind is TOKEN_KIND_EXTENDED, then (as we thus are in a |
207 macro context) this is a pointer to an instance of macro_context. | |
208 Otherwise if tokens_kind is *not* TOKEN_KIND_EXTENDED, then, if | |
209 we are in a macro context, this is a pointer to an instance of | |
210 cpp_hashnode, representing the name of the macro this context is | |
211 for. If we are not in a macro context, then this is just NULL. | |
212 Note that when tokens_kind is TOKEN_KIND_EXTENDED, the memory | |
213 used by the instance of macro_context pointed to by this member | |
214 is de-allocated upon de-allocation of the instance of struct | |
215 cpp_context. */ | |
216 union | |
217 { | |
218 macro_context *mc; | |
219 cpp_hashnode *macro; | |
220 } c; | |
0 | 221 |
111 | 222 /* This determines the type of tokens held by this context. */ |
223 enum context_tokens_kind tokens_kind; | |
0 | 224 }; |
225 | |
226 struct lexer_state | |
227 { | |
228 /* Nonzero if first token on line is CPP_HASH. */ | |
229 unsigned char in_directive; | |
230 | |
231 /* Nonzero if in a directive that will handle padding tokens itself. | |
232 #include needs this to avoid problems with computed include and | |
233 spacing between tokens. */ | |
234 unsigned char directive_wants_padding; | |
235 | |
236 /* True if we are skipping a failed conditional group. */ | |
237 unsigned char skipping; | |
238 | |
239 /* Nonzero if in a directive that takes angle-bracketed headers. */ | |
240 unsigned char angled_headers; | |
241 | |
242 /* Nonzero if in a #if or #elif directive. */ | |
243 unsigned char in_expression; | |
244 | |
245 /* Nonzero to save comments. Turned off if discard_comments, and in | |
246 all directives apart from #define. */ | |
247 unsigned char save_comments; | |
248 | |
249 /* Nonzero if lexing __VA_ARGS__ is valid. */ | |
250 unsigned char va_args_ok; | |
251 | |
252 /* Nonzero if lexing poisoned identifiers is valid. */ | |
253 unsigned char poisoned_ok; | |
254 | |
255 /* Nonzero to prevent macro expansion. */ | |
256 unsigned char prevent_expansion; | |
257 | |
258 /* Nonzero when parsing arguments to a function-like macro. */ | |
259 unsigned char parsing_args; | |
260 | |
111 | 261 /* Nonzero if in a __has_include__ or __has_include_next__ statement. */ |
262 unsigned char in__has_include__; | |
263 | |
0 | 264 /* Nonzero if prevent_expansion is true only because output is |
265 being discarded. */ | |
266 unsigned char discarding_output; | |
267 | |
268 /* Nonzero to skip evaluating part of an expression. */ | |
269 unsigned int skip_eval; | |
270 | |
271 /* Nonzero when handling a deferred pragma. */ | |
272 unsigned char in_deferred_pragma; | |
273 | |
274 /* Nonzero if the deferred pragma being handled allows macro expansion. */ | |
275 unsigned char pragma_allow_expansion; | |
276 }; | |
277 | |
278 /* Special nodes - identifiers with predefined significance. */ | |
279 struct spec_nodes | |
280 { | |
281 cpp_hashnode *n_defined; /* defined operator */ | |
282 cpp_hashnode *n_true; /* C++ keyword true */ | |
283 cpp_hashnode *n_false; /* C++ keyword false */ | |
284 cpp_hashnode *n__VA_ARGS__; /* C99 vararg macros */ | |
111 | 285 cpp_hashnode *n__has_include__; /* __has_include__ operator */ |
286 cpp_hashnode *n__has_include_next__; /* __has_include_next__ operator */ | |
0 | 287 }; |
288 | |
289 typedef struct _cpp_line_note _cpp_line_note; | |
290 struct _cpp_line_note | |
291 { | |
292 /* Location in the clean line the note refers to. */ | |
293 const unsigned char *pos; | |
294 | |
295 /* Type of note. The 9 'from' trigraph characters represent those | |
296 trigraphs, '\\' an escaped newline, ' ' an escaped newline with | |
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
297 intervening space, 0 represents a note that has already been handled, |
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
298 and anything else is invalid. */ |
0 | 299 unsigned int type; |
300 }; | |
301 | |
302 /* Represents the contents of a file cpplib has read in. */ | |
303 struct cpp_buffer | |
304 { | |
305 const unsigned char *cur; /* Current location. */ | |
306 const unsigned char *line_base; /* Start of current physical line. */ | |
307 const unsigned char *next_line; /* Start of to-be-cleaned logical line. */ | |
308 | |
309 const unsigned char *buf; /* Entire character buffer. */ | |
310 const unsigned char *rlimit; /* Writable byte at end of file. */ | |
111 | 311 const unsigned char *to_free; /* Pointer that should be freed when |
312 popping the buffer. */ | |
0 | 313 |
314 _cpp_line_note *notes; /* Array of notes. */ | |
315 unsigned int cur_note; /* Next note to process. */ | |
316 unsigned int notes_used; /* Number of notes. */ | |
317 unsigned int notes_cap; /* Size of allocated array. */ | |
318 | |
319 struct cpp_buffer *prev; | |
320 | |
321 /* Pointer into the file table; non-NULL if this is a file buffer. | |
322 Used for include_next and to record control macros. */ | |
323 struct _cpp_file *file; | |
324 | |
325 /* Saved value of __TIMESTAMP__ macro - date and time of last modification | |
326 of the assotiated file. */ | |
327 const unsigned char *timestamp; | |
328 | |
329 /* Value of if_stack at start of this file. | |
330 Used to prohibit unmatched #endif (etc) in an include file. */ | |
331 struct if_stack *if_stack; | |
332 | |
333 /* True if we need to get the next clean line. */ | |
334 bool need_line; | |
335 | |
336 /* True if we have already warned about C++ comments in this file. | |
337 The warning happens only for C89 extended mode with -pedantic on, | |
338 or for -Wtraditional, and only once per file (otherwise it would | |
339 be far too noisy). */ | |
340 unsigned int warned_cplusplus_comments : 1; | |
341 | |
342 /* True if we don't process trigraphs and escaped newlines. True | |
343 for preprocessed input, command line directives, and _Pragma | |
344 buffers. */ | |
345 unsigned int from_stage3 : 1; | |
346 | |
347 /* At EOF, a buffer is automatically popped. If RETURN_AT_EOF is | |
348 true, a CPP_EOF token is then returned. Otherwise, the next | |
349 token from the enclosing buffer is returned. */ | |
350 unsigned int return_at_eof : 1; | |
351 | |
352 /* One for a system header, two for a C system header file that therefore | |
353 needs to be extern "C" protected in C++, and zero otherwise. */ | |
354 unsigned char sysp; | |
355 | |
356 /* The directory of the this buffer's file. Its NAME member is not | |
357 allocated, so we don't need to worry about freeing it. */ | |
358 struct cpp_dir dir; | |
359 | |
360 /* Descriptor for converting from the input character set to the | |
361 source character set. */ | |
362 struct cset_converter input_cset_desc; | |
363 }; | |
364 | |
47
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
365 /* The list of saved macros by push_macro pragma. */ |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
366 struct def_pragma_macro { |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
367 /* Chain element to previous saved macro. */ |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
368 struct def_pragma_macro *next; |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
369 /* Name of the macro. */ |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
370 char *name; |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
371 /* The stored macro content. */ |
67
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
372 unsigned char *definition; |
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
373 |
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
374 /* Definition line number. */ |
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
375 source_location line; |
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
376 /* If macro defined in system header. */ |
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
377 unsigned int syshdr : 1; |
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
378 /* Nonzero if it has been expanded or had its existence tested. */ |
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
379 unsigned int used : 1; |
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
380 |
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
381 /* Mark if we save an undefined macro. */ |
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
382 unsigned int is_undef : 1; |
47
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
383 }; |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
384 |
0 | 385 /* A cpp_reader encapsulates the "state" of a pre-processor run. |
386 Applying cpp_get_token repeatedly yields a stream of pre-processor | |
387 tokens. Usually, there is only one cpp_reader object active. */ | |
388 struct cpp_reader | |
389 { | |
390 /* Top of buffer stack. */ | |
391 cpp_buffer *buffer; | |
392 | |
393 /* Overlaid buffer (can be different after processing #include). */ | |
394 cpp_buffer *overlaid_buffer; | |
395 | |
396 /* Lexer state. */ | |
397 struct lexer_state state; | |
398 | |
399 /* Source line tracking. */ | |
400 struct line_maps *line_table; | |
401 | |
402 /* The line of the '#' of the current directive. */ | |
403 source_location directive_line; | |
404 | |
405 /* Memory buffers. */ | |
406 _cpp_buff *a_buff; /* Aligned permanent storage. */ | |
407 _cpp_buff *u_buff; /* Unaligned permanent storage. */ | |
408 _cpp_buff *free_buffs; /* Free buffer chain. */ | |
409 | |
410 /* Context stack. */ | |
411 struct cpp_context base_context; | |
412 struct cpp_context *context; | |
413 | |
414 /* If in_directive, the directive if known. */ | |
415 const struct directive *directive; | |
416 | |
417 /* Token generated while handling a directive, if any. */ | |
418 cpp_token directive_result; | |
419 | |
420 /* When expanding a macro at top-level, this is the location of the | |
421 macro invocation. */ | |
422 source_location invocation_location; | |
423 | |
111 | 424 /* This is the node representing the macro being expanded at |
425 top-level. The value of this data member is valid iff | |
426 in_macro_expansion_p() returns TRUE. */ | |
427 cpp_hashnode *top_most_macro_node; | |
428 | |
429 /* Nonzero if we are about to expand a macro. Note that if we are | |
430 really expanding a macro, the function macro_of_context returns | |
431 the macro being expanded and this flag is set to false. Client | |
432 code should use the function in_macro_expansion_p to know if we | |
433 are either about to expand a macro, or are actually expanding | |
434 one. */ | |
435 bool about_to_expand_macro_p; | |
0 | 436 |
437 /* Search paths for include files. */ | |
438 struct cpp_dir *quote_include; /* "" */ | |
439 struct cpp_dir *bracket_include; /* <> */ | |
440 struct cpp_dir no_search_path; /* No path. */ | |
441 | |
442 /* Chain of all hashed _cpp_file instances. */ | |
443 struct _cpp_file *all_files; | |
444 | |
445 struct _cpp_file *main_file; | |
446 | |
447 /* File and directory hash table. */ | |
448 struct htab *file_hash; | |
449 struct htab *dir_hash; | |
450 struct file_hash_entry_pool *file_hash_entries; | |
451 | |
452 /* Negative path lookup hash table. */ | |
453 struct htab *nonexistent_file_hash; | |
454 struct obstack nonexistent_file_ob; | |
455 | |
456 /* Nonzero means don't look for #include "foo" the source-file | |
457 directory. */ | |
458 bool quote_ignores_source_dir; | |
459 | |
460 /* Nonzero if any file has contained #pragma once or #import has | |
461 been used. */ | |
462 bool seen_once_only; | |
463 | |
464 /* Multiple include optimization. */ | |
465 const cpp_hashnode *mi_cmacro; | |
466 const cpp_hashnode *mi_ind_cmacro; | |
467 bool mi_valid; | |
468 | |
469 /* Lexing. */ | |
470 cpp_token *cur_token; | |
471 tokenrun base_run, *cur_run; | |
472 unsigned int lookaheads; | |
473 | |
474 /* Nonzero prevents the lexer from re-using the token runs. */ | |
475 unsigned int keep_tokens; | |
476 | |
477 /* Buffer to hold macro definition string. */ | |
478 unsigned char *macro_buffer; | |
479 unsigned int macro_buffer_len; | |
480 | |
481 /* Descriptor for converting from the source character set to the | |
482 execution character set. */ | |
483 struct cset_converter narrow_cset_desc; | |
484 | |
485 /* Descriptor for converting from the source character set to the | |
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
47
diff
changeset
|
486 UTF-8 execution character set. */ |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
47
diff
changeset
|
487 struct cset_converter utf8_cset_desc; |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
47
diff
changeset
|
488 |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
47
diff
changeset
|
489 /* Descriptor for converting from the source character set to the |
0 | 490 UTF-16 execution character set. */ |
491 struct cset_converter char16_cset_desc; | |
492 | |
493 /* Descriptor for converting from the source character set to the | |
494 UTF-32 execution character set. */ | |
495 struct cset_converter char32_cset_desc; | |
496 | |
497 /* Descriptor for converting from the source character set to the | |
498 wide execution character set. */ | |
499 struct cset_converter wide_cset_desc; | |
500 | |
501 /* Date and time text. Calculated together if either is requested. */ | |
502 const unsigned char *date; | |
503 const unsigned char *time; | |
504 | |
111 | 505 /* Externally set timestamp to replace current date and time useful for |
506 reproducibility. It should be initialized to -2 (not yet set) and | |
507 set to -1 to disable it or to a non-negative value to enable it. */ | |
508 time_t source_date_epoch; | |
509 | |
0 | 510 /* EOF token, and a token forcing paste avoidance. */ |
511 cpp_token avoid_paste; | |
512 cpp_token eof; | |
513 | |
514 /* Opaque handle to the dependencies of mkdeps.c. */ | |
515 struct deps *deps; | |
516 | |
517 /* Obstack holding all macro hash nodes. This never shrinks. | |
518 See identifiers.c */ | |
519 struct obstack hash_ob; | |
520 | |
521 /* Obstack holding buffer and conditional structures. This is a | |
522 real stack. See directives.c. */ | |
523 struct obstack buffer_ob; | |
524 | |
525 /* Pragma table - dynamic, because a library user can add to the | |
526 list of recognized pragmas. */ | |
527 struct pragma_entry *pragmas; | |
528 | |
529 /* Call backs to cpplib client. */ | |
530 struct cpp_callbacks cb; | |
531 | |
532 /* Identifier hash table. */ | |
533 struct ht *hash_table; | |
534 | |
535 /* Expression parser stack. */ | |
536 struct op *op_stack, *op_limit; | |
537 | |
538 /* User visible options. */ | |
539 struct cpp_options opts; | |
540 | |
541 /* Special nodes - identifiers with predefined significance to the | |
542 preprocessor. */ | |
543 struct spec_nodes spec_nodes; | |
544 | |
545 /* Whether cpplib owns the hashtable. */ | |
546 bool our_hashtable; | |
547 | |
548 /* Traditional preprocessing output buffer (a logical line). */ | |
549 struct | |
550 { | |
551 unsigned char *base; | |
552 unsigned char *limit; | |
553 unsigned char *cur; | |
554 source_location first_line; | |
555 } out; | |
556 | |
557 /* Used for buffer overlays by traditional.c. */ | |
558 const unsigned char *saved_cur, *saved_rlimit, *saved_line_base; | |
559 | |
560 /* A saved list of the defined macros, for dependency checking | |
561 of precompiled headers. */ | |
562 struct cpp_savedstate *savedstate; | |
563 | |
564 /* Next value of __COUNTER__ macro. */ | |
565 unsigned int counter; | |
566 | |
567 /* Table of comments, when state.save_comments is true. */ | |
568 cpp_comment_table comments; | |
47
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
569 |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
570 /* List of saved macros by push_macro. */ |
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
571 struct def_pragma_macro *pushed_macros; |
111 | 572 |
573 /* If non-null, the lexer will use this location for the next token | |
574 instead of getting a location from the linemap. */ | |
575 source_location *forced_token_location_p; | |
0 | 576 }; |
577 | |
578 /* Character classes. Based on the more primitive macros in safe-ctype.h. | |
579 If the definition of `numchar' looks odd to you, please look up the | |
580 definition of a pp-number in the C standard [section 6.4.8 of C99]. | |
581 | |
582 In the unlikely event that characters other than \r and \n enter | |
583 the set is_vspace, the macro handle_newline() in lex.c must be | |
584 updated. */ | |
585 #define _dollar_ok(x) ((x) == '$' && CPP_OPTION (pfile, dollars_in_ident)) | |
586 | |
587 #define is_idchar(x) (ISIDNUM(x) || _dollar_ok(x)) | |
588 #define is_numchar(x) ISIDNUM(x) | |
589 #define is_idstart(x) (ISIDST(x) || _dollar_ok(x)) | |
590 #define is_numstart(x) ISDIGIT(x) | |
591 #define is_hspace(x) ISBLANK(x) | |
592 #define is_vspace(x) IS_VSPACE(x) | |
593 #define is_nvspace(x) IS_NVSPACE(x) | |
594 #define is_space(x) IS_SPACE_OR_NUL(x) | |
595 | |
596 /* This table is constant if it can be initialized at compile time, | |
597 which is the case if cpp was compiled with GCC >=2.7, or another | |
598 compiler that supports C99. */ | |
599 #if HAVE_DESIGNATED_INITIALIZERS | |
600 extern const unsigned char _cpp_trigraph_map[UCHAR_MAX + 1]; | |
601 #else | |
602 extern unsigned char _cpp_trigraph_map[UCHAR_MAX + 1]; | |
603 #endif | |
604 | |
605 /* Macros. */ | |
606 | |
607 static inline int cpp_in_system_header (cpp_reader *); | |
608 static inline int | |
609 cpp_in_system_header (cpp_reader *pfile) | |
610 { | |
611 return pfile->buffer ? pfile->buffer->sysp : 0; | |
612 } | |
67
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
613 #define CPP_PEDANTIC(PF) CPP_OPTION (PF, cpp_pedantic) |
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
614 #define CPP_WTRADITIONAL(PF) CPP_OPTION (PF, cpp_warn_traditional) |
0 | 615 |
616 static inline int cpp_in_primary_file (cpp_reader *); | |
617 static inline int | |
618 cpp_in_primary_file (cpp_reader *pfile) | |
619 { | |
620 return pfile->line_table->depth == 1; | |
621 } | |
622 | |
623 /* In macro.c */ | |
624 extern void _cpp_free_definition (cpp_hashnode *); | |
625 extern bool _cpp_create_definition (cpp_reader *, cpp_hashnode *); | |
626 extern void _cpp_pop_context (cpp_reader *); | |
627 extern void _cpp_push_text_context (cpp_reader *, cpp_hashnode *, | |
628 const unsigned char *, size_t); | |
111 | 629 extern bool _cpp_save_parameter (cpp_reader *, cpp_macro *, cpp_hashnode *, |
630 cpp_hashnode *); | |
0 | 631 extern bool _cpp_arguments_ok (cpp_reader *, cpp_macro *, const cpp_hashnode *, |
632 unsigned int); | |
633 extern const unsigned char *_cpp_builtin_macro_text (cpp_reader *, | |
111 | 634 cpp_hashnode *, |
635 source_location = 0); | |
0 | 636 extern int _cpp_warn_if_unused_macro (cpp_reader *, cpp_hashnode *, void *); |
637 extern void _cpp_push_token_context (cpp_reader *, cpp_hashnode *, | |
638 const cpp_token *, unsigned int); | |
639 extern void _cpp_backup_tokens_direct (cpp_reader *, unsigned int); | |
640 | |
641 /* In identifiers.c */ | |
111 | 642 extern void _cpp_init_hashtable (cpp_reader *, cpp_hash_table *); |
0 | 643 extern void _cpp_destroy_hashtable (cpp_reader *); |
644 | |
645 /* In files.c */ | |
646 typedef struct _cpp_file _cpp_file; | |
647 extern _cpp_file *_cpp_find_file (cpp_reader *, const char *, cpp_dir *, | |
111 | 648 bool, int, bool, source_location); |
0 | 649 extern bool _cpp_find_failed (_cpp_file *); |
650 extern void _cpp_mark_file_once_only (cpp_reader *, struct _cpp_file *); | |
651 extern void _cpp_fake_include (cpp_reader *, const char *); | |
111 | 652 extern bool _cpp_stack_file (cpp_reader *, _cpp_file*, bool, |
653 source_location); | |
0 | 654 extern bool _cpp_stack_include (cpp_reader *, const char *, int, |
111 | 655 enum include_type, source_location); |
0 | 656 extern int _cpp_compare_file_date (cpp_reader *, const char *, int); |
657 extern void _cpp_report_missing_guards (cpp_reader *); | |
658 extern void _cpp_init_files (cpp_reader *); | |
659 extern void _cpp_cleanup_files (cpp_reader *); | |
111 | 660 extern void _cpp_pop_file_buffer (cpp_reader *, struct _cpp_file *, |
661 const unsigned char *); | |
0 | 662 extern bool _cpp_save_file_entries (cpp_reader *pfile, FILE *f); |
663 extern bool _cpp_read_file_entries (cpp_reader *, FILE *); | |
111 | 664 extern const char *_cpp_get_file_name (_cpp_file *); |
0 | 665 extern struct stat *_cpp_get_file_stat (_cpp_file *); |
111 | 666 extern bool _cpp_has_header (cpp_reader *, const char *, int, |
667 enum include_type); | |
0 | 668 |
669 /* In expr.c */ | |
670 extern bool _cpp_parse_expr (cpp_reader *, bool); | |
671 extern struct op *_cpp_expand_op_stack (cpp_reader *); | |
672 | |
673 /* In lex.c */ | |
674 extern void _cpp_process_line_notes (cpp_reader *, int); | |
675 extern void _cpp_clean_line (cpp_reader *); | |
676 extern bool _cpp_get_fresh_line (cpp_reader *); | |
677 extern bool _cpp_skip_block_comment (cpp_reader *); | |
678 extern cpp_token *_cpp_temp_token (cpp_reader *); | |
679 extern const cpp_token *_cpp_lex_token (cpp_reader *); | |
680 extern cpp_token *_cpp_lex_direct (cpp_reader *); | |
111 | 681 extern unsigned char *_cpp_spell_ident_ucns (unsigned char *, cpp_hashnode *); |
0 | 682 extern int _cpp_equiv_tokens (const cpp_token *, const cpp_token *); |
683 extern void _cpp_init_tokenrun (tokenrun *, unsigned int); | |
47
3bfb6c00c1e0
update it from 4.4.2 to 4.4.3.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
684 extern cpp_hashnode *_cpp_lex_identifier (cpp_reader *, const char *); |
111 | 685 extern int _cpp_remaining_tokens_num_in_context (cpp_context *); |
686 extern void _cpp_init_lexer (void); | |
0 | 687 |
688 /* In init.c. */ | |
689 extern void _cpp_maybe_push_include_file (cpp_reader *); | |
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
47
diff
changeset
|
690 extern const char *cpp_named_operator2name (enum cpp_ttype type); |
0 | 691 |
692 /* In directives.c */ | |
693 extern int _cpp_test_assertion (cpp_reader *, unsigned int *); | |
694 extern int _cpp_handle_directive (cpp_reader *, int); | |
695 extern void _cpp_define_builtin (cpp_reader *, const char *); | |
696 extern char ** _cpp_save_pragma_names (cpp_reader *); | |
697 extern void _cpp_restore_pragma_names (cpp_reader *, char **); | |
111 | 698 extern int _cpp_do__Pragma (cpp_reader *, source_location); |
0 | 699 extern void _cpp_init_directives (cpp_reader *); |
700 extern void _cpp_init_internal_pragmas (cpp_reader *); | |
701 extern void _cpp_do_file_change (cpp_reader *, enum lc_reason, const char *, | |
702 linenum_type, unsigned int); | |
703 extern void _cpp_pop_buffer (cpp_reader *); | |
111 | 704 extern char *_cpp_bracket_include (cpp_reader *); |
0 | 705 |
706 /* In directives.c */ | |
707 struct _cpp_dir_only_callbacks | |
708 { | |
709 /* Called to print a block of lines. */ | |
710 void (*print_lines) (int, const void *, size_t); | |
711 void (*maybe_print_line) (source_location); | |
712 }; | |
713 | |
714 extern void _cpp_preprocess_dir_only (cpp_reader *, | |
715 const struct _cpp_dir_only_callbacks *); | |
716 | |
717 /* In traditional.c. */ | |
111 | 718 extern bool _cpp_scan_out_logical_line (cpp_reader *, cpp_macro *, bool); |
0 | 719 extern bool _cpp_read_logical_line_trad (cpp_reader *); |
720 extern void _cpp_overlay_buffer (cpp_reader *pfile, const unsigned char *, | |
721 size_t); | |
722 extern void _cpp_remove_overlay (cpp_reader *); | |
723 extern bool _cpp_create_trad_definition (cpp_reader *, cpp_macro *); | |
724 extern bool _cpp_expansions_different_trad (const cpp_macro *, | |
725 const cpp_macro *); | |
726 extern unsigned char *_cpp_copy_replacement_text (const cpp_macro *, | |
727 unsigned char *); | |
728 extern size_t _cpp_replacement_text_len (const cpp_macro *); | |
729 | |
730 /* In charset.c. */ | |
731 | |
732 /* The normalization state at this point in the sequence. | |
733 It starts initialized to all zeros, and at the end | |
734 'level' is the normalization level of the sequence. */ | |
735 | |
736 struct normalize_state | |
737 { | |
111 | 738 /* The previous starter character. */ |
0 | 739 cppchar_t previous; |
111 | 740 /* The combining class of the previous character (whether or not a |
741 starter). */ | |
0 | 742 unsigned char prev_class; |
743 /* The lowest normalization level so far. */ | |
744 enum cpp_normalize_level level; | |
745 }; | |
746 #define INITIAL_NORMALIZE_STATE { 0, 0, normalized_KC } | |
747 #define NORMALIZE_STATE_RESULT(st) ((st)->level) | |
748 | |
111 | 749 /* We saw a character C that matches ISIDNUM(), update a |
0 | 750 normalize_state appropriately. */ |
111 | 751 #define NORMALIZE_STATE_UPDATE_IDNUM(st, c) \ |
752 ((st)->previous = (c), (st)->prev_class = 0) | |
0 | 753 |
111 | 754 extern bool _cpp_valid_ucn (cpp_reader *, const unsigned char **, |
755 const unsigned char *, int, | |
756 struct normalize_state *state, | |
757 cppchar_t *, | |
758 source_range *char_range, | |
759 cpp_string_location_reader *loc_reader); | |
0 | 760 extern void _cpp_destroy_iconv (cpp_reader *); |
761 extern unsigned char *_cpp_convert_input (cpp_reader *, const char *, | |
762 unsigned char *, size_t, size_t, | |
763 const unsigned char **, off_t *); | |
764 extern const char *_cpp_default_encoding (void); | |
765 extern cpp_hashnode * _cpp_interpret_identifier (cpp_reader *pfile, | |
766 const unsigned char *id, | |
767 size_t len); | |
768 | |
769 /* Utility routines and macros. */ | |
770 #define DSC(str) (const unsigned char *)str, sizeof str - 1 | |
771 | |
772 /* These are inline functions instead of macros so we can get type | |
773 checking. */ | |
774 static inline int ustrcmp (const unsigned char *, const unsigned char *); | |
775 static inline int ustrncmp (const unsigned char *, const unsigned char *, | |
776 size_t); | |
777 static inline size_t ustrlen (const unsigned char *); | |
111 | 778 static inline const unsigned char *uxstrdup (const unsigned char *); |
779 static inline const unsigned char *ustrchr (const unsigned char *, int); | |
0 | 780 static inline int ufputs (const unsigned char *, FILE *); |
781 | |
782 /* Use a const char for the second parameter since it is usually a literal. */ | |
783 static inline int ustrcspn (const unsigned char *, const char *); | |
784 | |
785 static inline int | |
786 ustrcmp (const unsigned char *s1, const unsigned char *s2) | |
787 { | |
788 return strcmp ((const char *)s1, (const char *)s2); | |
789 } | |
790 | |
791 static inline int | |
792 ustrncmp (const unsigned char *s1, const unsigned char *s2, size_t n) | |
793 { | |
794 return strncmp ((const char *)s1, (const char *)s2, n); | |
795 } | |
796 | |
797 static inline int | |
798 ustrcspn (const unsigned char *s1, const char *s2) | |
799 { | |
800 return strcspn ((const char *)s1, s2); | |
801 } | |
802 | |
803 static inline size_t | |
804 ustrlen (const unsigned char *s1) | |
805 { | |
806 return strlen ((const char *)s1); | |
807 } | |
808 | |
111 | 809 static inline const unsigned char * |
0 | 810 uxstrdup (const unsigned char *s1) |
811 { | |
111 | 812 return (const unsigned char *) xstrdup ((const char *)s1); |
0 | 813 } |
814 | |
111 | 815 static inline const unsigned char * |
0 | 816 ustrchr (const unsigned char *s1, int c) |
817 { | |
111 | 818 return (const unsigned char *) strchr ((const char *)s1, c); |
0 | 819 } |
820 | |
821 static inline int | |
822 ufputs (const unsigned char *s, FILE *f) | |
823 { | |
824 return fputs ((const char *)s, f); | |
825 } | |
826 | |
111 | 827 /* In line-map.c. */ |
828 | |
829 /* Create a macro map. A macro map encodes source locations of tokens | |
830 that are part of a macro replacement-list, at a macro expansion | |
831 point. See the extensive comments of struct line_map and struct | |
832 line_map_macro, in line-map.h. | |
833 | |
834 This map shall be created when the macro is expanded. The map | |
835 encodes the source location of the expansion point of the macro as | |
836 well as the "original" source location of each token that is part | |
837 of the macro replacement-list. If a macro is defined but never | |
838 expanded, it has no macro map. SET is the set of maps the macro | |
839 map should be part of. MACRO_NODE is the macro which the new macro | |
840 map should encode source locations for. EXPANSION is the location | |
841 of the expansion point of MACRO. For function-like macros | |
842 invocations, it's best to make it point to the closing parenthesis | |
843 of the macro, rather than the the location of the first character | |
844 of the macro. NUM_TOKENS is the number of tokens that are part of | |
845 the replacement-list of MACRO. */ | |
846 const line_map_macro *linemap_enter_macro (struct line_maps *, | |
847 struct cpp_hashnode*, | |
848 source_location, | |
849 unsigned int); | |
850 | |
851 /* Create and return a virtual location for a token that is part of a | |
852 macro expansion-list at a macro expansion point. See the comment | |
853 inside struct line_map_macro to see what an expansion-list exactly | |
854 is. | |
855 | |
856 A call to this function must come after a call to | |
857 linemap_enter_macro. | |
858 | |
859 MAP is the map into which the source location is created. TOKEN_NO | |
860 is the index of the token in the macro replacement-list, starting | |
861 at number 0. | |
862 | |
863 ORIG_LOC is the location of the token outside of this macro | |
864 expansion. If the token comes originally from the macro | |
865 definition, it is the locus in the macro definition; otherwise it | |
866 is a location in the context of the caller of this macro expansion | |
867 (which is a virtual location or a source location if the caller is | |
868 itself a macro expansion or not). | |
869 | |
870 MACRO_DEFINITION_LOC is the location in the macro definition, | |
871 either of the token itself or of a macro parameter that it | |
872 replaces. */ | |
873 source_location linemap_add_macro_token (const line_map_macro *, | |
874 unsigned int, | |
875 source_location, | |
876 source_location); | |
877 | |
878 /* Return the source line number corresponding to source location | |
879 LOCATION. SET is the line map set LOCATION comes from. If | |
880 LOCATION is the location of token that is part of the | |
881 expansion-list of a macro expansion return the line number of the | |
882 macro expansion point. */ | |
883 int linemap_get_expansion_line (struct line_maps *, | |
884 source_location); | |
885 | |
886 /* Return the path of the file corresponding to source code location | |
887 LOCATION. | |
888 | |
889 If LOCATION is the location of a token that is part of the | |
890 replacement-list of a macro expansion return the file path of the | |
891 macro expansion point. | |
892 | |
893 SET is the line map set LOCATION comes from. */ | |
894 const char* linemap_get_expansion_filename (struct line_maps *, | |
895 source_location); | |
896 | |
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
47
diff
changeset
|
897 #ifdef __cplusplus |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
47
diff
changeset
|
898 } |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
47
diff
changeset
|
899 #endif |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
47
diff
changeset
|
900 |
0 | 901 #endif /* ! LIBCPP_INTERNAL_H */ |