]>
Commit | Line | Data |
---|---|---|
7f2935c7 | 1 | /* Definitions for CPP library. |
6c25a4f7 | 2 | Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, |
8f5929e1 | 3 | 2004, 2005, 2007, 2008, 2009 |
2398fb2a | 4 | Free Software Foundation, Inc. |
7f2935c7 PB |
5 | Written by Per Bothner, 1994-95. |
6 | ||
7 | This program is free software; you can redistribute it and/or modify it | |
8 | under the terms of the GNU General Public License as published by the | |
9 | Free Software Foundation; either version 2, or (at your option) any | |
10 | later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software | |
200031d1 | 19 | Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
7f2935c7 PB |
20 | |
21 | In other words, you are welcome to use, share and improve this program. | |
22 | You are forbidden to forbid anyone else to use, share and improve | |
23 | what you give them. Help stamp out software-hoarding! */ | |
4f4e53dd PB |
24 | #ifndef LIBCPP_CPPLIB_H |
25 | #define LIBCPP_CPPLIB_H | |
7f2935c7 PB |
26 | |
27 | #include <sys/types.h> | |
4f4e53dd | 28 | #include "symtab.h" |
d82fc108 | 29 | #include "line-map.h" |
7f2935c7 PB |
30 | |
31 | #ifdef __cplusplus | |
32 | extern "C" { | |
33 | #endif | |
34 | ||
7f2935c7 PB |
35 | typedef struct cpp_reader cpp_reader; |
36 | typedef struct cpp_buffer cpp_buffer; | |
37 | typedef struct cpp_options cpp_options; | |
1368ee70 | 38 | typedef struct cpp_token cpp_token; |
bfb9dc7f | 39 | typedef struct cpp_string cpp_string; |
a50882dc | 40 | typedef struct cpp_hashnode cpp_hashnode; |
93c80368 | 41 | typedef struct cpp_macro cpp_macro; |
7e96d768 | 42 | typedef struct cpp_callbacks cpp_callbacks; |
8f9b4009 | 43 | typedef struct cpp_dir cpp_dir; |
93c80368 | 44 | |
93c80368 | 45 | struct answer; |
94d1613b | 46 | struct _cpp_file; |
c5a04734 | 47 | |
f8b954fc NB |
48 | /* The first three groups, apart from '=', can appear in preprocessor |
49 | expressions (+= and -= are used to indicate unary + and - resp.). | |
50 | This allows a lookup table to be implemented in _cpp_parse_expr. | |
c5a04734 ZW |
51 | |
52 | The first group, to CPP_LAST_EQ, can be immediately followed by an | |
53 | '='. The lexer needs operators ending in '=', like ">>=", to be in | |
b52dbbf8 SE |
54 | the same order as their counterparts without the '=', like ">>". |
55 | ||
56 | See the cpp_operator table optab in expr.c if you change the order or | |
57 | add or remove anything in the first group. */ | |
c5a04734 | 58 | |
21b11495 ZW |
59 | #define TTYPE_TABLE \ |
60 | OP(EQ, "=") \ | |
61 | OP(NOT, "!") \ | |
62 | OP(GREATER, ">") /* compare */ \ | |
63 | OP(LESS, "<") \ | |
64 | OP(PLUS, "+") /* math */ \ | |
65 | OP(MINUS, "-") \ | |
66 | OP(MULT, "*") \ | |
67 | OP(DIV, "/") \ | |
68 | OP(MOD, "%") \ | |
69 | OP(AND, "&") /* bit ops */ \ | |
70 | OP(OR, "|") \ | |
71 | OP(XOR, "^") \ | |
72 | OP(RSHIFT, ">>") \ | |
73 | OP(LSHIFT, "<<") \ | |
21b11495 ZW |
74 | \ |
75 | OP(COMPL, "~") \ | |
76 | OP(AND_AND, "&&") /* logical */ \ | |
77 | OP(OR_OR, "||") \ | |
78 | OP(QUERY, "?") \ | |
79 | OP(COLON, ":") \ | |
80 | OP(COMMA, ",") /* grouping */ \ | |
81 | OP(OPEN_PAREN, "(") \ | |
82 | OP(CLOSE_PAREN, ")") \ | |
83 | TK(EOF, NONE) \ | |
84 | OP(EQ_EQ, "==") /* compare */ \ | |
85 | OP(NOT_EQ, "!=") \ | |
86 | OP(GREATER_EQ, ">=") \ | |
87 | OP(LESS_EQ, "<=") \ | |
88 | \ | |
89 | /* These two are unary + / - in preprocessor expressions. */ \ | |
90 | OP(PLUS_EQ, "+=") /* math */ \ | |
91 | OP(MINUS_EQ, "-=") \ | |
92 | \ | |
93 | OP(MULT_EQ, "*=") \ | |
94 | OP(DIV_EQ, "/=") \ | |
95 | OP(MOD_EQ, "%=") \ | |
96 | OP(AND_EQ, "&=") /* bit ops */ \ | |
97 | OP(OR_EQ, "|=") \ | |
98 | OP(XOR_EQ, "^=") \ | |
99 | OP(RSHIFT_EQ, ">>=") \ | |
100 | OP(LSHIFT_EQ, "<<=") \ | |
21b11495 ZW |
101 | /* Digraphs together, beginning with CPP_FIRST_DIGRAPH. */ \ |
102 | OP(HASH, "#") /* digraphs */ \ | |
103 | OP(PASTE, "##") \ | |
104 | OP(OPEN_SQUARE, "[") \ | |
105 | OP(CLOSE_SQUARE, "]") \ | |
106 | OP(OPEN_BRACE, "{") \ | |
107 | OP(CLOSE_BRACE, "}") \ | |
108 | /* The remainder of the punctuation. Order is not significant. */ \ | |
109 | OP(SEMICOLON, ";") /* structure */ \ | |
110 | OP(ELLIPSIS, "...") \ | |
111 | OP(PLUS_PLUS, "++") /* increment */ \ | |
112 | OP(MINUS_MINUS, "--") \ | |
113 | OP(DEREF, "->") /* accessors */ \ | |
114 | OP(DOT, ".") \ | |
115 | OP(SCOPE, "::") \ | |
116 | OP(DEREF_STAR, "->*") \ | |
117 | OP(DOT_STAR, ".*") \ | |
118 | OP(ATSIGN, "@") /* used in Objective-C */ \ | |
119 | \ | |
120 | TK(NAME, IDENT) /* word */ \ | |
121 | TK(AT_NAME, IDENT) /* @word - Objective-C */ \ | |
122 | TK(NUMBER, LITERAL) /* 34_be+ta */ \ | |
123 | \ | |
124 | TK(CHAR, LITERAL) /* 'char' */ \ | |
125 | TK(WCHAR, LITERAL) /* L'char' */ \ | |
b6baa67d KVH |
126 | TK(CHAR16, LITERAL) /* u'char' */ \ |
127 | TK(CHAR32, LITERAL) /* U'char' */ \ | |
21b11495 ZW |
128 | TK(OTHER, LITERAL) /* stray punctuation */ \ |
129 | \ | |
130 | TK(STRING, LITERAL) /* "string" */ \ | |
131 | TK(WSTRING, LITERAL) /* L"string" */ \ | |
b6baa67d KVH |
132 | TK(STRING16, LITERAL) /* u"string" */ \ |
133 | TK(STRING32, LITERAL) /* U"string" */ \ | |
21b11495 ZW |
134 | TK(OBJC_STRING, LITERAL) /* @"string" - Objective-C */ \ |
135 | TK(HEADER_NAME, LITERAL) /* <stdio.h> in #include */ \ | |
136 | \ | |
137 | TK(COMMENT, LITERAL) /* Only if output comments. */ \ | |
138 | /* SPELL_LITERAL happens to DTRT. */ \ | |
139 | TK(MACRO_ARG, NONE) /* Macro argument. */ \ | |
bc4071dd RH |
140 | TK(PRAGMA, NONE) /* Only for deferred pragmas. */ \ |
141 | TK(PRAGMA_EOL, NONE) /* End-of-line for deferred pragmas. */ \ | |
21b11495 ZW |
142 | TK(PADDING, NONE) /* Whitespace for -E. */ |
143 | ||
144 | #define OP(e, s) CPP_ ## e, | |
145 | #define TK(e, s) CPP_ ## e, | |
3a2b2c7a | 146 | enum cpp_ttype |
c45da1ca | 147 | { |
1368ee70 | 148 | TTYPE_TABLE |
21b11495 ZW |
149 | N_TTYPES, |
150 | ||
151 | /* Positions in the table. */ | |
b52dbbf8 | 152 | CPP_LAST_EQ = CPP_LSHIFT, |
21b11495 | 153 | CPP_FIRST_DIGRAPH = CPP_HASH, |
b52dbbf8 | 154 | CPP_LAST_PUNCTUATOR= CPP_ATSIGN, |
21b11495 | 155 | CPP_LAST_CPP_OP = CPP_LESS_EQ |
1368ee70 | 156 | }; |
96be6998 ZW |
157 | #undef OP |
158 | #undef TK | |
1368ee70 | 159 | |
ecfd72e7 | 160 | /* C language kind, used when calling cpp_create_reader. */ |
dd07b884 | 161 | enum c_lang {CLK_GNUC89 = 0, CLK_GNUC99, CLK_STDC89, CLK_STDC94, CLK_STDC99, |
dfafdaa6 | 162 | CLK_GNUCXX, CLK_CXX98, CLK_GNUCXX0X, CLK_CXX0X, CLK_ASM}; |
dd07b884 | 163 | |
5d8ebbd8 | 164 | /* Payload of a NUMBER, STRING, CHAR or COMMENT token. */ |
d8044160 | 165 | struct cpp_string GTY(()) |
1368ee70 ZW |
166 | { |
167 | unsigned int len; | |
f617b8e2 | 168 | const unsigned char *text; |
1368ee70 ZW |
169 | }; |
170 | ||
c5a04734 | 171 | /* Flags for the cpp_token structure. */ |
041c3194 | 172 | #define PREV_WHITE (1 << 0) /* If whitespace before this token. */ |
93c80368 NB |
173 | #define DIGRAPH (1 << 1) /* If it was a digraph. */ |
174 | #define STRINGIFY_ARG (1 << 2) /* If macro argument to be stringified. */ | |
175 | #define PASTE_LEFT (1 << 3) /* If on LHS of a ## operator. */ | |
dd07b884 | 176 | #define NAMED_OP (1 << 4) /* C++ named operators. */ |
93c80368 | 177 | #define NO_EXPAND (1 << 5) /* Do not macro-expand this token. */ |
4ed5bcfb | 178 | #define BOL (1 << 6) /* Token at beginning of line. */ |
ab84748a VR |
179 | #define PURE_ZERO (1 << 7) /* Single 0 digit, used by the C++ frontend, |
180 | set in c-lex.c. */ | |
9e62c811 | 181 | |
d8044160 GK |
182 | /* Specify which field, if any, of the cpp_token union is used. */ |
183 | ||
184 | enum cpp_token_fld_kind { | |
185 | CPP_TOKEN_FLD_NODE, | |
186 | CPP_TOKEN_FLD_SOURCE, | |
187 | CPP_TOKEN_FLD_STR, | |
188 | CPP_TOKEN_FLD_ARG_NO, | |
bc4071dd | 189 | CPP_TOKEN_FLD_PRAGMA, |
d8044160 GK |
190 | CPP_TOKEN_FLD_NONE |
191 | }; | |
192 | ||
1920de47 | 193 | /* A preprocessing token. This has been carefully packed and should |
644eddaa | 194 | occupy 16 bytes on 32-bit hosts and 24 bytes on 64-bit hosts. */ |
d8044160 | 195 | struct cpp_token GTY(()) |
1368ee70 | 196 | { |
12f9df4e | 197 | source_location src_loc; /* Location of first char of token. */ |
041c3194 ZW |
198 | ENUM_BITFIELD(cpp_ttype) type : CHAR_BIT; /* token type */ |
199 | unsigned char flags; /* flags - see above */ | |
200 | ||
d8044160 | 201 | union cpp_token_u |
1368ee70 | 202 | { |
d8044160 GK |
203 | /* An identifier. */ |
204 | cpp_hashnode * | |
205 | GTY ((nested_ptr (union tree_node, | |
206 | "%h ? CPP_HASHNODE (GCC_IDENT_TO_HT_IDENT (%h)) : NULL", | |
207 | "%h ? HT_IDENT_TO_GCC_IDENT (HT_NODE (%h)) : NULL"), | |
208 | tag ("CPP_TOKEN_FLD_NODE"))) | |
209 | node; | |
210 | ||
211 | /* Inherit padding from this token. */ | |
212 | cpp_token * GTY ((tag ("CPP_TOKEN_FLD_SOURCE"))) source; | |
213 | ||
214 | /* A string, or number. */ | |
215 | struct cpp_string GTY ((tag ("CPP_TOKEN_FLD_STR"))) str; | |
216 | ||
217 | /* Argument no. for a CPP_MACRO_ARG. */ | |
218 | unsigned int GTY ((tag ("CPP_TOKEN_FLD_ARG_NO"))) arg_no; | |
bc4071dd RH |
219 | |
220 | /* Caller-supplied identifier for a CPP_PRAGMA. */ | |
221 | unsigned int GTY ((tag ("CPP_TOKEN_FLD_PRAGMA"))) pragma; | |
d8044160 | 222 | } GTY ((desc ("cpp_token_val_index (&%1)"))) val; |
7f2935c7 PB |
223 | }; |
224 | ||
d8044160 GK |
225 | /* Say which field is in use. */ |
226 | extern enum cpp_token_fld_kind cpp_token_val_index (cpp_token *tok); | |
227 | ||
4268e8bb | 228 | /* A type wide enough to hold any multibyte source character. |
625458d0 | 229 | cpplib's character constant interpreter requires an unsigned type. |
43839642 ZW |
230 | Also, a typedef for the signed equivalent. |
231 | The width of this type is capped at 32 bits; there do exist targets | |
232 | where wchar_t is 64 bits, but only in a non-default mode, and there | |
233 | would be no meaningful interpretation for a wchar_t value greater | |
234 | than 2^32 anyway -- the widest wide-character encoding around is | |
235 | ISO 10646, which stops at 2^31. */ | |
236 | #if CHAR_BIT * SIZEOF_INT >= 32 | |
625458d0 | 237 | # define CPPCHAR_SIGNED_T int |
43839642 ZW |
238 | #elif CHAR_BIT * SIZEOF_LONG >= 32 |
239 | # define CPPCHAR_SIGNED_T long | |
625458d0 | 240 | #else |
43839642 | 241 | # error "Cannot find a least-32-bit signed integer type" |
625458d0 NB |
242 | #endif |
243 | typedef unsigned CPPCHAR_SIGNED_T cppchar_t; | |
244 | typedef CPPCHAR_SIGNED_T cppchar_signed_t; | |
0d9f234d | 245 | |
72bb2c39 BI |
246 | /* Style of header dependencies to generate. */ |
247 | enum cpp_deps_style { DEPS_NONE = 0, DEPS_USER, DEPS_SYSTEM }; | |
248 | ||
50668cf6 GK |
249 | /* The possible normalization levels, from most restrictive to least. */ |
250 | enum cpp_normalize_level { | |
251 | /* In NFKC. */ | |
252 | normalized_KC = 0, | |
253 | /* In NFC. */ | |
254 | normalized_C, | |
255 | /* In NFC, except for subsequences where being in NFC would make | |
256 | the identifier invalid. */ | |
257 | normalized_identifier_C, | |
258 | /* Not normalized at all. */ | |
259 | normalized_none | |
260 | }; | |
261 | ||
ae79697b ZW |
262 | /* This structure is nested inside struct cpp_reader, and |
263 | carries all the options visible to the command line. */ | |
264 | struct cpp_options | |
c50bca08 | 265 | { |
6ab3e7dd NB |
266 | /* Characters between tab stops. */ |
267 | unsigned int tabstop; | |
268 | ||
bdb05a7b NB |
269 | /* The language we're preprocessing. */ |
270 | enum c_lang lang; | |
271 | ||
7f2935c7 | 272 | /* Nonzero means use extra default include directories for C++. */ |
ae79697b | 273 | unsigned char cplusplus; |
7f2935c7 | 274 | |
6614fd40 | 275 | /* Nonzero means handle cplusplus style comments. */ |
ae79697b | 276 | unsigned char cplusplus_comments; |
7f2935c7 | 277 | |
899015a0 TT |
278 | /* Nonzero means define __OBJC__, treat @ as a special token, use |
279 | the OBJC[PLUS]_INCLUDE_PATH environment variable, and allow | |
280 | "#import". */ | |
ae79697b | 281 | unsigned char objc; |
7f2935c7 | 282 | |
564ad5f4 | 283 | /* Nonzero means don't copy comments into the output file. */ |
ae79697b | 284 | unsigned char discard_comments; |
7f2935c7 | 285 | |
477cdac7 JT |
286 | /* Nonzero means don't copy comments into the output file during |
287 | macro expansion. */ | |
288 | unsigned char discard_comments_in_macro_exp; | |
289 | ||
041c3194 | 290 | /* Nonzero means process the ISO trigraph sequences. */ |
ae79697b | 291 | unsigned char trigraphs; |
7f2935c7 | 292 | |
9b55f29a NB |
293 | /* Nonzero means process the ISO digraph sequences. */ |
294 | unsigned char digraphs; | |
295 | ||
bdb05a7b NB |
296 | /* Nonzero means to allow hexadecimal floats and LL suffixes. */ |
297 | unsigned char extended_numbers; | |
298 | ||
b6baa67d KVH |
299 | /* Nonzero means process u/U prefix literals (UTF-16/32). */ |
300 | unsigned char uliterals; | |
301 | ||
7f2935c7 | 302 | /* Nonzero means print names of header files (-H). */ |
ae79697b | 303 | unsigned char print_include_names; |
7f2935c7 | 304 | |
9fbd3e41 JM |
305 | /* Nonzero means complain about deprecated features. */ |
306 | unsigned char warn_deprecated; | |
307 | ||
7f2935c7 | 308 | /* Nonzero means warn if slash-star appears in a comment. */ |
ae79697b | 309 | unsigned char warn_comments; |
7f2935c7 | 310 | |
b02398bd BE |
311 | /* Nonzero means warn if a user-supplied include directory does not |
312 | exist. */ | |
313 | unsigned char warn_missing_include_dirs; | |
314 | ||
7f2935c7 | 315 | /* Nonzero means warn if there are any trigraphs. */ |
ae79697b | 316 | unsigned char warn_trigraphs; |
7f2935c7 | 317 | |
a5a49440 NB |
318 | /* Nonzero means warn about multicharacter charconsts. */ |
319 | unsigned char warn_multichar; | |
320 | ||
f9a0e96c ZW |
321 | /* Nonzero means warn about various incompatibilities with |
322 | traditional C. */ | |
07aa0b04 | 323 | unsigned char warn_traditional; |
7f2935c7 | 324 | |
cd7ab83f NB |
325 | /* Nonzero means warn about long long numeric constants. */ |
326 | unsigned char warn_long_long; | |
327 | ||
909de5da PE |
328 | /* Nonzero means warn about text after an #endif (or #else). */ |
329 | unsigned char warn_endif_labels; | |
330 | ||
68e65275 NB |
331 | /* Nonzero means warn about implicit sign changes owing to integer |
332 | promotions. */ | |
333 | unsigned char warn_num_sign_change; | |
334 | ||
e5b79219 RH |
335 | /* Zero means don't warn about __VA_ARGS__ usage in c89 pedantic mode. |
336 | Presumably the usage is protected by the appropriate #ifdef. */ | |
337 | unsigned char warn_variadic_macros; | |
338 | ||
c047ce93 SB |
339 | /* Nonzero means warn about builtin macros that are redefined or |
340 | explicitly undefined. */ | |
341 | unsigned char warn_builtin_macro_redefined; | |
342 | ||
31031edd JL |
343 | /* Nonzero means we should look for header.gcc files that remap file |
344 | names. */ | |
ae79697b | 345 | unsigned char remap; |
31031edd | 346 | |
eebedaa5 | 347 | /* Zero means dollar signs are punctuation. */ |
ae79697b | 348 | unsigned char dollars_in_ident; |
7f2935c7 | 349 | |
af15a2fe JM |
350 | /* Nonzero means UCNs are accepted in identifiers. */ |
351 | unsigned char extended_identifiers; | |
352 | ||
78b8811a HPN |
353 | /* True if we should warn about dollars in identifiers or numbers |
354 | for this translation unit. */ | |
355 | unsigned char warn_dollars; | |
356 | ||
6ac34fdc | 357 | /* Nonzero means warn if undefined identifiers are evaluated in an #if. */ |
ae79697b | 358 | unsigned char warn_undef; |
6ac34fdc | 359 | |
a69cbaac NB |
360 | /* Nonzero means warn of unused macros from the main file. */ |
361 | unsigned char warn_unused_macros; | |
362 | ||
31948547 | 363 | /* Nonzero for the 1999 C Standard, including corrigenda and amendments. */ |
ae79697b | 364 | unsigned char c99; |
31948547 | 365 | |
58551c23 NB |
366 | /* Nonzero if we are conforming to a specific C or C++ standard. */ |
367 | unsigned char std; | |
368 | ||
7f2935c7 | 369 | /* Nonzero means give all the error messages the ANSI standard requires. */ |
ae79697b | 370 | unsigned char pedantic; |
7f2935c7 | 371 | |
3773a46b JM |
372 | /* Nonzero means we're looking at already preprocessed code, so don't |
373 | bother trying to do macro expansion and whatnot. */ | |
ae79697b | 374 | unsigned char preprocessed; |
3773a46b | 375 | |
ae79697b ZW |
376 | /* Print column number in error messages. */ |
377 | unsigned char show_column; | |
be768055 | 378 | |
644eddaa | 379 | /* Nonzero means handle C++ alternate operator names. */ |
be768055 | 380 | unsigned char operator_names; |
7e96d768 | 381 | |
004cb263 NB |
382 | /* True for traditional preprocessing. */ |
383 | unsigned char traditional; | |
384 | ||
e6cc3a24 ZW |
385 | /* Holds the name of the target (execution) character set. */ |
386 | const char *narrow_charset; | |
387 | ||
388 | /* Holds the name of the target wide character set. */ | |
389 | const char *wide_charset; | |
390 | ||
cf551fba EC |
391 | /* Holds the name of the input character set. */ |
392 | const char *input_charset; | |
393 | ||
50668cf6 GK |
394 | /* The minimum permitted level of normalization before a warning |
395 | is generated. */ | |
396 | enum cpp_normalize_level warn_normalize; | |
397 | ||
783e2989 NB |
398 | /* True to warn about precompiled header files we couldn't use. */ |
399 | bool warn_invalid_pch; | |
400 | ||
401 | /* True if dependencies should be restored from a precompiled header. */ | |
402 | bool restore_pch_deps; | |
403 | ||
f4ff5a69 NB |
404 | /* Dependency generation. */ |
405 | struct | |
406 | { | |
407 | /* Style of header dependencies to generate. */ | |
72bb2c39 | 408 | enum cpp_deps_style style; |
f4ff5a69 NB |
409 | |
410 | /* Assume missing files are generated files. */ | |
411 | bool missing_files; | |
412 | ||
413 | /* Generate phony targets for each dependency apart from the first | |
414 | one. */ | |
415 | bool phony_targets; | |
182d89a3 NB |
416 | |
417 | /* If true, no dependency is generated on the main file. */ | |
418 | bool ignore_main_file; | |
f4ff5a69 NB |
419 | } deps; |
420 | ||
44a147ad NB |
421 | /* Target-specific features set by the front end or client. */ |
422 | ||
423 | /* Precision for target CPP arithmetic, target characters, target | |
424 | ints and target wide characters, respectively. */ | |
425 | size_t precision, char_precision, int_precision, wchar_precision; | |
426 | ||
23ff0223 NB |
427 | /* True means chars (wide chars) are unsigned. */ |
428 | bool unsigned_char, unsigned_wchar; | |
5279d739 | 429 | |
e6cc3a24 ZW |
430 | /* True if the most significant byte in a word has the lowest |
431 | address in memory. */ | |
432 | bool bytes_big_endian; | |
783e2989 | 433 | |
5279d739 ZW |
434 | /* Nonzero means __STDC__ should have the value 0 in system headers. */ |
435 | unsigned char stdc_0_in_system_headers; | |
21b11495 | 436 | |
ccfc4c91 OW |
437 | /* True disables tokenization outside of preprocessing directives. */ |
438 | bool directives_only; | |
ae79697b | 439 | }; |
7f2935c7 | 440 | |
94d1613b MS |
441 | /* Callback for header lookup for HEADER, which is the name of a |
442 | source file. It is used as a method of last resort to find headers | |
443 | that are not otherwise found during the normal include processing. | |
444 | The return value is the malloced name of a header to try and open, | |
445 | if any, or NULL otherwise. This callback is called only if the | |
446 | header is otherwise unfound. */ | |
e3c287c9 | 447 | typedef const char *(*missing_header_cb)(cpp_reader *, const char *header, cpp_dir **); |
94d1613b | 448 | |
48c4721e | 449 | /* Call backs to cpplib client. */ |
7e96d768 NB |
450 | struct cpp_callbacks |
451 | { | |
97293897 | 452 | /* Called when a new line of preprocessed output is started. */ |
6cf87ca4 | 453 | void (*line_change) (cpp_reader *, const cpp_token *, int); |
4dc299fb PB |
454 | |
455 | /* Called when switching to/from a new file. | |
456 | The line_map is for the new file. It is NULL if there is no new file. | |
457 | (In C this happens when done with <built-in>+<command line> and also | |
458 | when done with a main file.) This can be used for resource cleanup. */ | |
6cf87ca4 | 459 | void (*file_change) (cpp_reader *, const struct line_map *); |
4dc299fb | 460 | |
b20d9f0c | 461 | void (*dir_change) (cpp_reader *, const char *); |
6cf87ca4 | 462 | void (*include) (cpp_reader *, unsigned int, const unsigned char *, |
cbc43ae0 | 463 | const char *, int, const cpp_token **); |
6cf87ca4 ZW |
464 | void (*define) (cpp_reader *, unsigned int, cpp_hashnode *); |
465 | void (*undef) (cpp_reader *, unsigned int, cpp_hashnode *); | |
466 | void (*ident) (cpp_reader *, unsigned int, const cpp_string *); | |
467 | void (*def_pragma) (cpp_reader *, unsigned int); | |
468 | int (*valid_pch) (cpp_reader *, const char *, int); | |
469 | void (*read_pch) (cpp_reader *, const char *, int, const char *); | |
94d1613b | 470 | missing_header_cb missing_header; |
178b58b5 | 471 | |
5950c3c9 BE |
472 | /* Context-sensitive macro support. Returns macro (if any) that should |
473 | be expanded. */ | |
474 | cpp_hashnode * (*macro_to_expand) (cpp_reader *, const cpp_token *); | |
475 | ||
148e4216 JM |
476 | /* Called to emit a diagnostic. This callback receives the |
477 | translated message. */ | |
478 | bool (*error) (cpp_reader *, int, source_location, unsigned int, | |
479 | const char *, va_list *) | |
480 | ATTRIBUTE_FPTR_PRINTF(5,0); | |
93d45d9e JM |
481 | |
482 | /* Callbacks for when a macro is expanded, or tested (whether | |
483 | defined or not at the time) in #ifdef, #ifndef or "defined". */ | |
484 | void (*used_define) (cpp_reader *, unsigned int, cpp_hashnode *); | |
485 | void (*used_undef) (cpp_reader *, unsigned int, cpp_hashnode *); | |
486 | /* Called before #define and #undef or other macro definition | |
487 | changes are processed. */ | |
488 | void (*before_define) (cpp_reader *); | |
7e96d768 NB |
489 | }; |
490 | ||
5793b276 | 491 | /* Chain of directories to look for include files in. */ |
8f9b4009 | 492 | struct cpp_dir |
5793b276 NB |
493 | { |
494 | /* NULL-terminated singly-linked list. */ | |
8f9b4009 | 495 | struct cpp_dir *next; |
5793b276 | 496 | |
8f9b4009 | 497 | /* NAME of the directory, NUL-terminated. */ |
5793b276 NB |
498 | char *name; |
499 | unsigned int len; | |
500 | ||
501 | /* One if a system header, two if a system header that has extern | |
502 | "C" guards for C++. */ | |
503 | unsigned char sysp; | |
504 | ||
8f5929e1 JJ |
505 | /* Is this a user-supplied directory? */ |
506 | bool user_supplied_p; | |
507 | ||
508 | /* The canonicalized NAME as determined by lrealpath. This field | |
509 | is only used by hosts that lack reliable inode numbers. */ | |
510 | char *canonical_name; | |
511 | ||
8f9b4009 NB |
512 | /* Mapping of file names for this directory for MS-DOS and related |
513 | platforms. A NULL-terminated array of (from, to) pairs. */ | |
514 | const char **name_map; | |
cf551fba | 515 | |
94d1613b MS |
516 | /* Routine to construct pathname, given the search path name and the |
517 | HEADER we are trying to find, return a constructed pathname to | |
518 | try and open. If this is NULL, the constructed pathname is as | |
519 | constructed by append_file_to_dir. */ | |
520 | char *(*construct) (const char *header, cpp_dir *dir); | |
521 | ||
5793b276 NB |
522 | /* The C front end uses these to recognize duplicated |
523 | directories in the search path. */ | |
524 | ino_t ino; | |
525 | dev_t dev; | |
526 | }; | |
527 | ||
7f2935c7 | 528 | /* Name under which this program was invoked. */ |
bcc5cac9 | 529 | extern const char *progname; |
7f2935c7 | 530 | |
93c80368 NB |
531 | /* The structure of a node in the hash table. The hash table has |
532 | entries for all identifiers: either macros defined by #define | |
533 | commands (type NT_MACRO), assertions created with #assert | |
534 | (NT_ASSERTION), or neither of the above (NT_VOID). Builtin macros | |
95bd1dd7 | 535 | like __LINE__ are flagged NODE_BUILTIN. Poisoned identifiers are |
93c80368 NB |
536 | flagged NODE_POISONED. NODE_OPERATOR (C++ only) indicates an |
537 | identifier that behaves like an operator such as "xor". | |
538 | NODE_DIAGNOSTIC is for speed in lex_token: it indicates a | |
539 | diagnostic may be required for this node. Currently this only | |
540 | applies to __VA_ARGS__ and poisoned identifiers. */ | |
541 | ||
542 | /* Hash node flags. */ | |
543 | #define NODE_OPERATOR (1 << 0) /* C++ named operator. */ | |
544 | #define NODE_POISONED (1 << 1) /* Poisoned identifier. */ | |
545 | #define NODE_BUILTIN (1 << 2) /* Builtin macro. */ | |
546 | #define NODE_DIAGNOSTIC (1 << 3) /* Possible diagnostic when lexed. */ | |
618cdda7 | 547 | #define NODE_WARN (1 << 4) /* Warn if redefined or undefined. */ |
644eddaa | 548 | #define NODE_DISABLED (1 << 5) /* A disabled macro. */ |
71c0e7fc | 549 | #define NODE_MACRO_ARG (1 << 6) /* Used during #define processing. */ |
93d45d9e | 550 | #define NODE_USED (1 << 7) /* Dumped with -dU. */ |
5950c3c9 | 551 | #define NODE_CONDITIONAL (1 << 8) /* Conditional macro */ |
93c80368 NB |
552 | |
553 | /* Different flavors of hash node. */ | |
f8f769ea ZW |
554 | enum node_type |
555 | { | |
93c80368 NB |
556 | NT_VOID = 0, /* No definition yet. */ |
557 | NT_MACRO, /* A macro of some form. */ | |
558 | NT_ASSERTION /* Predicate for #assert. */ | |
559 | }; | |
560 | ||
644eddaa NB |
561 | /* Different flavors of builtin macro. _Pragma is an operator, but we |
562 | handle it with the builtin code for efficiency reasons. */ | |
93c80368 NB |
563 | enum builtin_type |
564 | { | |
565 | BT_SPECLINE = 0, /* `__LINE__' */ | |
566 | BT_DATE, /* `__DATE__' */ | |
567 | BT_FILE, /* `__FILE__' */ | |
568 | BT_BASE_FILE, /* `__BASE_FILE__' */ | |
569 | BT_INCLUDE_LEVEL, /* `__INCLUDE_LEVEL__' */ | |
570 | BT_TIME, /* `__TIME__' */ | |
644eddaa | 571 | BT_STDC, /* `__STDC__' */ |
be8ac3e2 | 572 | BT_PRAGMA, /* `_Pragma' operator */ |
a702045a OW |
573 | BT_TIMESTAMP, /* `__TIMESTAMP__' */ |
574 | BT_COUNTER /* `__COUNTER__' */ | |
f8f769ea ZW |
575 | }; |
576 | ||
2a967f3d NB |
577 | #define CPP_HASHNODE(HNODE) ((cpp_hashnode *) (HNODE)) |
578 | #define HT_NODE(NODE) ((ht_identifier *) (NODE)) | |
579 | #define NODE_LEN(NODE) HT_LEN (&(NODE)->ident) | |
580 | #define NODE_NAME(NODE) HT_STR (&(NODE)->ident) | |
f8f769ea | 581 | |
d8044160 GK |
582 | /* Specify which field, if any, of the union is used. */ |
583 | ||
584 | enum { | |
585 | NTV_MACRO, | |
586 | NTV_ANSWER, | |
587 | NTV_BUILTIN, | |
588 | NTV_ARGUMENT, | |
589 | NTV_NONE | |
590 | }; | |
591 | ||
592 | #define CPP_HASHNODE_VALUE_IDX(HNODE) \ | |
593 | ((HNODE.flags & NODE_MACRO_ARG) ? NTV_ARGUMENT \ | |
594 | : HNODE.type == NT_MACRO ? ((HNODE.flags & NODE_BUILTIN) \ | |
595 | ? NTV_BUILTIN : NTV_MACRO) \ | |
596 | : HNODE.type == NT_ASSERTION ? NTV_ANSWER \ | |
597 | : NTV_NONE) | |
598 | ||
2a967f3d NB |
599 | /* The common part of an identifier node shared amongst all 3 C front |
600 | ends. Also used to store CPP identifiers, which are a superset of | |
601 | identifiers in the grammatical sense. */ | |
c3f829c1 GDR |
602 | |
603 | union _cpp_hashnode_value GTY(()) | |
604 | { | |
605 | /* If a macro. */ | |
606 | cpp_macro * GTY((tag ("NTV_MACRO"))) macro; | |
607 | /* Answers to an assertion. */ | |
608 | struct answer * GTY ((tag ("NTV_ANSWER"))) answers; | |
609 | /* Code for a builtin macro. */ | |
610 | enum builtin_type GTY ((tag ("NTV_BUILTIN"))) builtin; | |
611 | /* Macro argument index. */ | |
612 | unsigned short GTY ((tag ("NTV_ARGUMENT"))) arg_index; | |
613 | }; | |
614 | ||
17211ab5 | 615 | struct cpp_hashnode GTY(()) |
f8f769ea | 616 | { |
2a967f3d | 617 | struct ht_identifier ident; |
4977bab6 | 618 | unsigned int is_directive : 1; |
cf551fba | 619 | unsigned int directive_index : 7; /* If is_directive, |
4977bab6 | 620 | then index into directive table. |
71c0e7fc | 621 | Otherwise, a NODE_OPERATOR. */ |
2a967f3d | 622 | unsigned char rid_code; /* Rid code - for front ends. */ |
5950c3c9 BE |
623 | ENUM_BITFIELD(node_type) type : 7; /* CPP node type. */ |
624 | unsigned int flags : 9; /* CPP flags. */ | |
f8f769ea | 625 | |
c3f829c1 | 626 | union _cpp_hashnode_value GTY ((desc ("CPP_HASHNODE_VALUE_IDX (%1)"))) value; |
f8f769ea ZW |
627 | }; |
628 | ||
b4e46cea PB |
629 | /* Call this first to get a handle to pass to other functions. |
630 | ||
631 | If you want cpplib to manage its own hashtable, pass in a NULL | |
632 | pointer. Otherwise you should pass in an initialized hash table | |
633 | that cpplib will share; this technique is used by the C front | |
634 | ends. */ | |
50f59cd7 PB |
635 | extern cpp_reader *cpp_create_reader (enum c_lang, struct ht *, |
636 | struct line_maps *); | |
400023a3 | 637 | |
5ffeb913 TT |
638 | /* Reset the cpp_reader's line_map. This is only used after reading a |
639 | PCH file. */ | |
640 | extern void cpp_set_line_map (cpp_reader *, struct line_maps *); | |
641 | ||
f749a36b NB |
642 | /* Call this to change the selected language standard (e.g. because of |
643 | command line options). */ | |
6cf87ca4 | 644 | extern void cpp_set_lang (cpp_reader *, enum c_lang); |
f749a36b | 645 | |
5793b276 | 646 | /* Set the include paths. */ |
8f9b4009 | 647 | extern void cpp_set_include_chains (cpp_reader *, cpp_dir *, cpp_dir *, int); |
5793b276 | 648 | |
c6e83800 ZW |
649 | /* Call these to get pointers to the options, callback, and deps |
650 | structures for a given reader. These pointers are good until you | |
651 | call cpp_finish on that reader. You can either edit the callbacks | |
7e96d768 NB |
652 | through the pointer returned from cpp_get_callbacks, or set them |
653 | with cpp_set_callbacks. */ | |
6cf87ca4 | 654 | extern cpp_options *cpp_get_options (cpp_reader *); |
6cf87ca4 ZW |
655 | extern cpp_callbacks *cpp_get_callbacks (cpp_reader *); |
656 | extern void cpp_set_callbacks (cpp_reader *, cpp_callbacks *); | |
c6e83800 | 657 | extern struct deps *cpp_get_deps (cpp_reader *); |
7e96d768 | 658 | |
8e9ea4d7 PB |
659 | /* This function reads the file, but does not start preprocessing. It |
660 | returns the name of the original file; this is the same as the | |
661 | input file, except for preprocessed input. This will generate at | |
662 | least one file change callback, and possibly a line change callback | |
9ac97460 | 663 | too. If there was an error opening the file, it returns NULL. */ |
8e9ea4d7 | 664 | extern const char *cpp_read_main_file (cpp_reader *, const char *); |
f5e99456 | 665 | |
ccfc4c91 OW |
666 | /* Set up built-ins with special behavior. Use cpp_init_builtins() |
667 | instead unless your know what you are doing. */ | |
668 | extern void cpp_init_special_builtins (cpp_reader *); | |
669 | ||
c1bad961 | 670 | /* Set up built-ins like __FILE__. */ |
6cf87ca4 | 671 | extern void cpp_init_builtins (cpp_reader *, int); |
f5e99456 | 672 | |
4169c321 | 673 | /* This is called after options have been parsed, and partially |
59e4e217 | 674 | processed. */ |
4169c321 PB |
675 | extern void cpp_post_options (cpp_reader *); |
676 | ||
e6cc3a24 ZW |
677 | /* Set up translation to the target character set. */ |
678 | extern void cpp_init_iconv (cpp_reader *); | |
679 | ||
f4ff5a69 NB |
680 | /* Call this to finish preprocessing. If you requested dependency |
681 | generation, pass an open stream to write the information to, | |
148e4216 JM |
682 | otherwise NULL. It is your responsibility to close the stream. */ |
683 | extern void cpp_finish (cpp_reader *, FILE *deps_stream); | |
f4ff5a69 | 684 | |
f5e99456 | 685 | /* Call this to release the handle at the end of preprocessing. Any |
148e4216 | 686 | use of the handle after this function returns is invalid. */ |
6cf87ca4 | 687 | extern void cpp_destroy (cpp_reader *); |
f5e99456 | 688 | |
6cf87ca4 ZW |
689 | extern unsigned int cpp_token_len (const cpp_token *); |
690 | extern unsigned char *cpp_token_as_text (cpp_reader *, const cpp_token *); | |
691 | extern unsigned char *cpp_spell_token (cpp_reader *, const cpp_token *, | |
47e20491 | 692 | unsigned char *, bool); |
6cf87ca4 | 693 | extern void cpp_register_pragma (cpp_reader *, const char *, const char *, |
b5b3e36a | 694 | void (*) (cpp_reader *), bool); |
bc4071dd RH |
695 | extern void cpp_register_deferred_pragma (cpp_reader *, const char *, |
696 | const char *, unsigned, bool, bool); | |
6cf87ca4 ZW |
697 | extern int cpp_avoid_paste (cpp_reader *, const cpp_token *, |
698 | const cpp_token *); | |
699 | extern const cpp_token *cpp_get_token (cpp_reader *); | |
5ffeb913 TT |
700 | extern const cpp_token *cpp_get_token_with_location (cpp_reader *, |
701 | source_location *); | |
6cf87ca4 ZW |
702 | extern const unsigned char *cpp_macro_definition (cpp_reader *, |
703 | const cpp_hashnode *); | |
704 | extern void _cpp_backup_tokens (cpp_reader *, unsigned int); | |
5950c3c9 | 705 | extern const cpp_token *cpp_peek_token (cpp_reader *, int); |
041c3194 | 706 | |
c8a96070 | 707 | /* Evaluate a CPP_CHAR or CPP_WCHAR token. */ |
6cf87ca4 ZW |
708 | extern cppchar_t cpp_interpret_charconst (cpp_reader *, const cpp_token *, |
709 | unsigned int *, int *); | |
e6cc3a24 ZW |
710 | /* Evaluate a vector of CPP_STRING or CPP_WSTRING tokens. */ |
711 | extern bool cpp_interpret_string (cpp_reader *, | |
712 | const cpp_string *, size_t, | |
b6baa67d | 713 | cpp_string *, enum cpp_ttype); |
423e95e2 EC |
714 | extern bool cpp_interpret_string_notranslate (cpp_reader *, |
715 | const cpp_string *, size_t, | |
b6baa67d | 716 | cpp_string *, enum cpp_ttype); |
c8a96070 | 717 | |
c5ff069d ZW |
718 | /* Convert a host character constant to the execution character set. */ |
719 | extern cppchar_t cpp_host_to_exec_charset (cpp_reader *, cppchar_t); | |
720 | ||
c1bad961 | 721 | /* Used to register macros and assertions, perhaps from the command line. |
3d90d290 | 722 | The text is the same as the command line argument. */ |
6cf87ca4 | 723 | extern void cpp_define (cpp_reader *, const char *); |
28f68625 DF |
724 | extern void cpp_define_formatted (cpp_reader *pfile, |
725 | const char *fmt, ...) ATTRIBUTE_PRINTF_2; | |
6cf87ca4 ZW |
726 | extern void cpp_assert (cpp_reader *, const char *); |
727 | extern void cpp_undef (cpp_reader *, const char *); | |
728 | extern void cpp_unassert (cpp_reader *, const char *); | |
7f2935c7 | 729 | |
121de39f RH |
730 | extern cpp_macro *cpp_push_definition (cpp_reader *, const char *); |
731 | extern void cpp_pop_definition (cpp_reader *, const char *, cpp_macro *); | |
732 | ||
d1bd0ded GK |
733 | /* Undefine all macros and assertions. */ |
734 | extern void cpp_undef_all (cpp_reader *); | |
735 | ||
6cf87ca4 | 736 | extern cpp_buffer *cpp_push_buffer (cpp_reader *, const unsigned char *, |
4dc299fb | 737 | size_t, int); |
6cf87ca4 | 738 | extern int cpp_defined (cpp_reader *, const unsigned char *, int); |
c5a04734 | 739 | |
cd7ab83f NB |
740 | /* A preprocessing number. Code assumes that any unused high bits of |
741 | the double integer are set to zero. */ | |
742 | typedef unsigned HOST_WIDE_INT cpp_num_part; | |
743 | typedef struct cpp_num cpp_num; | |
744 | struct cpp_num | |
745 | { | |
746 | cpp_num_part high; | |
747 | cpp_num_part low; | |
748 | bool unsignedp; /* True if value should be treated as unsigned. */ | |
749 | bool overflow; /* True if the most recent calculation overflowed. */ | |
750 | }; | |
751 | ||
752 | /* cpplib provides two interfaces for interpretation of preprocessing | |
753 | numbers. | |
754 | ||
755 | cpp_classify_number categorizes numeric constants according to | |
756 | their field (integer, floating point, or invalid), radix (decimal, | |
757 | octal, hexadecimal), and type suffixes. */ | |
758 | ||
759 | #define CPP_N_CATEGORY 0x000F | |
760 | #define CPP_N_INVALID 0x0000 | |
761 | #define CPP_N_INTEGER 0x0001 | |
762 | #define CPP_N_FLOATING 0x0002 | |
763 | ||
764 | #define CPP_N_WIDTH 0x00F0 | |
ac6b1c67 CF |
765 | #define CPP_N_SMALL 0x0010 /* int, float, shrot _Fract/Accum */ |
766 | #define CPP_N_MEDIUM 0x0020 /* long, double, long _Fract/_Accum. */ | |
767 | #define CPP_N_LARGE 0x0040 /* long long, long double, | |
768 | long long _Fract/Accum. */ | |
cd7ab83f | 769 | |
c77cd3d1 UB |
770 | #define CPP_N_WIDTH_MD 0xF0000 /* machine defined. */ |
771 | #define CPP_N_MD_W 0x10000 | |
772 | #define CPP_N_MD_Q 0x20000 | |
773 | ||
cd7ab83f NB |
774 | #define CPP_N_RADIX 0x0F00 |
775 | #define CPP_N_DECIMAL 0x0100 | |
776 | #define CPP_N_HEX 0x0200 | |
777 | #define CPP_N_OCTAL 0x0400 | |
f7fd775f | 778 | #define CPP_N_BINARY 0x0800 |
cd7ab83f NB |
779 | |
780 | #define CPP_N_UNSIGNED 0x1000 /* Properties. */ | |
781 | #define CPP_N_IMAGINARY 0x2000 | |
ad6ed77e | 782 | #define CPP_N_DFLOAT 0x4000 |
cd7ab83f | 783 | |
ac6b1c67 CF |
784 | #define CPP_N_FRACT 0x100000 /* Fract types. */ |
785 | #define CPP_N_ACCUM 0x200000 /* Accum types. */ | |
786 | ||
cd7ab83f NB |
787 | /* Classify a CPP_NUMBER token. The return value is a combination of |
788 | the flags from the above sets. */ | |
6cf87ca4 | 789 | extern unsigned cpp_classify_number (cpp_reader *, const cpp_token *); |
cd7ab83f NB |
790 | |
791 | /* Evaluate a token classified as category CPP_N_INTEGER. */ | |
6cf87ca4 ZW |
792 | extern cpp_num cpp_interpret_integer (cpp_reader *, const cpp_token *, |
793 | unsigned int type); | |
cd7ab83f | 794 | |
ceeedfc1 NB |
795 | /* Sign extend a number, with PRECISION significant bits and all |
796 | others assumed clear, to fill out a cpp_num structure. */ | |
6cf87ca4 | 797 | cpp_num cpp_num_sign_extend (cpp_num, size_t); |
ceeedfc1 | 798 | |
95bd1dd7 | 799 | /* Diagnostic levels. To get a diagnostic without associating a |
ebef4e8c NB |
800 | position in the translation unit with it, use cpp_error_with_line |
801 | with a line number of zero. */ | |
802 | ||
803 | /* Warning, an error with -Werror. */ | |
0527bc4e JDA |
804 | #define CPP_DL_WARNING 0x00 |
805 | /* Same as CPP_DL_WARNING, except it is not suppressed in system headers. */ | |
806 | #define CPP_DL_WARNING_SYSHDR 0x01 | |
ebef4e8c | 807 | /* Warning, an error with -pedantic-errors or -Werror. */ |
0527bc4e | 808 | #define CPP_DL_PEDWARN 0x02 |
ebef4e8c | 809 | /* An error. */ |
0527bc4e | 810 | #define CPP_DL_ERROR 0x03 |
ebef4e8c | 811 | /* An internal consistency check failed. Prints "internal error: ", |
0527bc4e JDA |
812 | otherwise the same as CPP_DL_ERROR. */ |
813 | #define CPP_DL_ICE 0x04 | |
148e4216 JM |
814 | /* An informative note following a warning. */ |
815 | #define CPP_DL_NOTE 0x05 | |
ebef4e8c | 816 | |
ebef4e8c | 817 | /* Output a diagnostic of some kind. */ |
148e4216 | 818 | extern bool cpp_error (cpp_reader *, int, const char *msgid, ...) |
ebef4e8c NB |
819 | ATTRIBUTE_PRINTF_3; |
820 | ||
6cf87ca4 | 821 | /* Output a diagnostic with "MSGID: " preceding the |
ebef4e8c | 822 | error string of errno. No location is printed. */ |
148e4216 | 823 | extern bool cpp_errno (cpp_reader *, int, const char *msgid); |
ebef4e8c NB |
824 | |
825 | /* Same as cpp_error, except additionally specifies a position as a | |
826 | (translation unit) physical line and physical column. If the line is | |
827 | zero, then no location is printed. */ | |
148e4216 | 828 | extern bool cpp_error_with_line (cpp_reader *, int, source_location, unsigned, |
dc3786d8 | 829 | const char *msgid, ...) ATTRIBUTE_PRINTF_5; |
f2d5f0cc | 830 | |
28f68625 | 831 | /* In lex.c */ |
6cf87ca4 ZW |
832 | extern int cpp_ideq (const cpp_token *, const char *); |
833 | extern void cpp_output_line (cpp_reader *, FILE *); | |
5d6342eb TT |
834 | extern unsigned char *cpp_output_line_to_string (cpp_reader *, |
835 | const unsigned char *); | |
6cf87ca4 ZW |
836 | extern void cpp_output_token (const cpp_token *, FILE *); |
837 | extern const char *cpp_type2name (enum cpp_ttype); | |
4268e8bb NB |
838 | /* Returns the value of an escape sequence, truncated to the correct |
839 | target precision. PSTR points to the input pointer, which is just | |
840 | after the backslash. LIMIT is how much text we have. WIDE is true | |
841 | if the escape sequence is part of a wide character constant or | |
842 | string literal. Handles all relevant diagnostics. */ | |
6cf87ca4 ZW |
843 | extern cppchar_t cpp_parse_escape (cpp_reader *, const unsigned char ** pstr, |
844 | const unsigned char *limit, int wide); | |
1368ee70 | 845 | |
631d0d36 MG |
846 | /* Structure used to hold a comment block at a given location in the |
847 | source code. */ | |
848 | ||
849 | typedef struct | |
850 | { | |
851 | /* Text of the comment including the terminators. */ | |
852 | char *comment; | |
853 | ||
854 | /* source location for the given comment. */ | |
855 | source_location sloc; | |
856 | } cpp_comment; | |
857 | ||
858 | /* Structure holding all comments for a given cpp_reader. */ | |
859 | ||
860 | typedef struct | |
861 | { | |
862 | /* table of comment entries. */ | |
863 | cpp_comment *entries; | |
864 | ||
865 | /* number of actual entries entered in the table. */ | |
866 | int count; | |
867 | ||
868 | /* number of entries allocated currently. */ | |
869 | int allocated; | |
870 | } cpp_comment_table; | |
871 | ||
872 | /* Returns the table of comments encountered by the preprocessor. This | |
873 | table is only populated when pfile->state.save_comments is true. */ | |
874 | extern cpp_comment_table *cpp_get_comments (cpp_reader *); | |
875 | ||
28f68625 | 876 | /* In hash.c */ |
2a967f3d NB |
877 | |
878 | /* Lookup an identifier in the hashtable. Puts the identifier in the | |
879 | table if it is not already there. */ | |
6cf87ca4 ZW |
880 | extern cpp_hashnode *cpp_lookup (cpp_reader *, const unsigned char *, |
881 | unsigned int); | |
2a967f3d | 882 | |
6cf87ca4 ZW |
883 | typedef int (*cpp_cb) (cpp_reader *, cpp_hashnode *, void *); |
884 | extern void cpp_forall_identifiers (cpp_reader *, cpp_cb, void *); | |
926c5678 | 885 | |
28f68625 | 886 | /* In macro.c */ |
6cf87ca4 ZW |
887 | extern void cpp_scan_nooutput (cpp_reader *); |
888 | extern int cpp_sys_macro_p (cpp_reader *); | |
889 | extern unsigned char *cpp_quote_string (unsigned char *, const unsigned char *, | |
890 | unsigned int); | |
6de1e2a9 | 891 | |
28f68625 | 892 | /* In files.c */ |
8f9b4009 | 893 | extern bool cpp_included (cpp_reader *, const char *); |
f1e20710 | 894 | extern bool cpp_included_before (cpp_reader *, const char *, source_location); |
6cf87ca4 | 895 | extern void cpp_make_system_header (cpp_reader *, int, int); |
6cf87ca4 ZW |
896 | extern bool cpp_push_include (cpp_reader *, const char *); |
897 | extern void cpp_change_file (cpp_reader *, enum lc_reason, const char *); | |
94d1613b | 898 | extern const char *cpp_get_path (struct _cpp_file *); |
e3c287c9 | 899 | extern cpp_dir *cpp_get_dir (struct _cpp_file *); |
94d1613b MS |
900 | extern cpp_buffer *cpp_get_buffer (cpp_reader *); |
901 | extern struct _cpp_file *cpp_get_file (cpp_buffer *); | |
902 | extern cpp_buffer *cpp_get_prev (cpp_buffer *); | |
97f6bd40 | 903 | extern void cpp_clear_file_cache (cpp_reader *); |
b0699dad | 904 | |
28f68625 | 905 | /* In pch.c */ |
17211ab5 | 906 | struct save_macro_data; |
6cf87ca4 ZW |
907 | extern int cpp_save_state (cpp_reader *, FILE *); |
908 | extern int cpp_write_pch_deps (cpp_reader *, FILE *); | |
909 | extern int cpp_write_pch_state (cpp_reader *, FILE *); | |
910 | extern int cpp_valid_state (cpp_reader *, const char *, int); | |
911 | extern void cpp_prepare_state (cpp_reader *, struct save_macro_data **); | |
912 | extern int cpp_read_state (cpp_reader *, const char *, FILE *, | |
913 | struct save_macro_data *); | |
17211ab5 | 914 | |
7f2935c7 PB |
915 | #ifdef __cplusplus |
916 | } | |
917 | #endif | |
88657302 | 918 | |
4f4e53dd | 919 | #endif /* ! LIBCPP_CPPLIB_H */ |