]>
Commit | Line | Data |
---|---|---|
7f2935c7 | 1 | /* Definitions for CPP library. |
8d9254fc | 2 | Copyright (C) 1995-2020 Free Software Foundation, Inc. |
7f2935c7 PB |
3 | Written by Per Bothner, 1994-95. |
4 | ||
5 | This program is free software; you can redistribute it and/or modify it | |
6 | under the terms of the GNU General Public License as published by the | |
748086b7 | 7 | Free Software Foundation; either version 3, or (at your option) any |
7f2935c7 PB |
8 | later version. |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
748086b7 JJ |
16 | along with this program; see the file COPYING3. If not see |
17 | <http://www.gnu.org/licenses/>. | |
7f2935c7 PB |
18 | |
19 | In other words, you are welcome to use, share and improve this program. | |
20 | You are forbidden to forbid anyone else to use, share and improve | |
21 | what you give them. Help stamp out software-hoarding! */ | |
4f4e53dd PB |
22 | #ifndef LIBCPP_CPPLIB_H |
23 | #define LIBCPP_CPPLIB_H | |
7f2935c7 PB |
24 | |
25 | #include <sys/types.h> | |
4f4e53dd | 26 | #include "symtab.h" |
d82fc108 | 27 | #include "line-map.h" |
7f2935c7 | 28 | |
7f2935c7 PB |
29 | typedef struct cpp_reader cpp_reader; |
30 | typedef struct cpp_buffer cpp_buffer; | |
31 | typedef struct cpp_options cpp_options; | |
1368ee70 | 32 | typedef struct cpp_token cpp_token; |
bfb9dc7f | 33 | typedef struct cpp_string cpp_string; |
a50882dc | 34 | typedef struct cpp_hashnode cpp_hashnode; |
93c80368 | 35 | typedef struct cpp_macro cpp_macro; |
7e96d768 | 36 | typedef struct cpp_callbacks cpp_callbacks; |
8f9b4009 | 37 | typedef struct cpp_dir cpp_dir; |
93c80368 | 38 | |
94d1613b | 39 | struct _cpp_file; |
c5a04734 | 40 | |
f8b954fc NB |
41 | /* The first three groups, apart from '=', can appear in preprocessor |
42 | expressions (+= and -= are used to indicate unary + and - resp.). | |
43 | This allows a lookup table to be implemented in _cpp_parse_expr. | |
c5a04734 ZW |
44 | |
45 | The first group, to CPP_LAST_EQ, can be immediately followed by an | |
46 | '='. The lexer needs operators ending in '=', like ">>=", to be in | |
b52dbbf8 SE |
47 | the same order as their counterparts without the '=', like ">>". |
48 | ||
49 | See the cpp_operator table optab in expr.c if you change the order or | |
50 | add or remove anything in the first group. */ | |
c5a04734 | 51 | |
21b11495 ZW |
52 | #define TTYPE_TABLE \ |
53 | OP(EQ, "=") \ | |
54 | OP(NOT, "!") \ | |
55 | OP(GREATER, ">") /* compare */ \ | |
56 | OP(LESS, "<") \ | |
57 | OP(PLUS, "+") /* math */ \ | |
58 | OP(MINUS, "-") \ | |
59 | OP(MULT, "*") \ | |
60 | OP(DIV, "/") \ | |
61 | OP(MOD, "%") \ | |
62 | OP(AND, "&") /* bit ops */ \ | |
63 | OP(OR, "|") \ | |
64 | OP(XOR, "^") \ | |
65 | OP(RSHIFT, ">>") \ | |
66 | OP(LSHIFT, "<<") \ | |
21b11495 ZW |
67 | \ |
68 | OP(COMPL, "~") \ | |
69 | OP(AND_AND, "&&") /* logical */ \ | |
70 | OP(OR_OR, "||") \ | |
71 | OP(QUERY, "?") \ | |
72 | OP(COLON, ":") \ | |
73 | OP(COMMA, ",") /* grouping */ \ | |
74 | OP(OPEN_PAREN, "(") \ | |
75 | OP(CLOSE_PAREN, ")") \ | |
76 | TK(EOF, NONE) \ | |
77 | OP(EQ_EQ, "==") /* compare */ \ | |
78 | OP(NOT_EQ, "!=") \ | |
79 | OP(GREATER_EQ, ">=") \ | |
80 | OP(LESS_EQ, "<=") \ | |
b7689b96 | 81 | OP(SPACESHIP, "<=>") \ |
21b11495 ZW |
82 | \ |
83 | /* These two are unary + / - in preprocessor expressions. */ \ | |
84 | OP(PLUS_EQ, "+=") /* math */ \ | |
85 | OP(MINUS_EQ, "-=") \ | |
86 | \ | |
87 | OP(MULT_EQ, "*=") \ | |
88 | OP(DIV_EQ, "/=") \ | |
89 | OP(MOD_EQ, "%=") \ | |
90 | OP(AND_EQ, "&=") /* bit ops */ \ | |
91 | OP(OR_EQ, "|=") \ | |
92 | OP(XOR_EQ, "^=") \ | |
93 | OP(RSHIFT_EQ, ">>=") \ | |
94 | OP(LSHIFT_EQ, "<<=") \ | |
21b11495 ZW |
95 | /* Digraphs together, beginning with CPP_FIRST_DIGRAPH. */ \ |
96 | OP(HASH, "#") /* digraphs */ \ | |
97 | OP(PASTE, "##") \ | |
98 | OP(OPEN_SQUARE, "[") \ | |
99 | OP(CLOSE_SQUARE, "]") \ | |
100 | OP(OPEN_BRACE, "{") \ | |
101 | OP(CLOSE_BRACE, "}") \ | |
102 | /* The remainder of the punctuation. Order is not significant. */ \ | |
103 | OP(SEMICOLON, ";") /* structure */ \ | |
104 | OP(ELLIPSIS, "...") \ | |
105 | OP(PLUS_PLUS, "++") /* increment */ \ | |
106 | OP(MINUS_MINUS, "--") \ | |
107 | OP(DEREF, "->") /* accessors */ \ | |
108 | OP(DOT, ".") \ | |
109 | OP(SCOPE, "::") \ | |
110 | OP(DEREF_STAR, "->*") \ | |
111 | OP(DOT_STAR, ".*") \ | |
112 | OP(ATSIGN, "@") /* used in Objective-C */ \ | |
113 | \ | |
114 | TK(NAME, IDENT) /* word */ \ | |
115 | TK(AT_NAME, IDENT) /* @word - Objective-C */ \ | |
116 | TK(NUMBER, LITERAL) /* 34_be+ta */ \ | |
117 | \ | |
118 | TK(CHAR, LITERAL) /* 'char' */ \ | |
119 | TK(WCHAR, LITERAL) /* L'char' */ \ | |
b6baa67d KVH |
120 | TK(CHAR16, LITERAL) /* u'char' */ \ |
121 | TK(CHAR32, LITERAL) /* U'char' */ \ | |
fe95b036 | 122 | TK(UTF8CHAR, LITERAL) /* u8'char' */ \ |
21b11495 ZW |
123 | TK(OTHER, LITERAL) /* stray punctuation */ \ |
124 | \ | |
125 | TK(STRING, LITERAL) /* "string" */ \ | |
126 | TK(WSTRING, LITERAL) /* L"string" */ \ | |
b6baa67d KVH |
127 | TK(STRING16, LITERAL) /* u"string" */ \ |
128 | TK(STRING32, LITERAL) /* U"string" */ \ | |
2c6e3f55 | 129 | TK(UTF8STRING, LITERAL) /* u8"string" */ \ |
21b11495 ZW |
130 | TK(OBJC_STRING, LITERAL) /* @"string" - Objective-C */ \ |
131 | TK(HEADER_NAME, LITERAL) /* <stdio.h> in #include */ \ | |
132 | \ | |
3ce4f9e4 ESR |
133 | TK(CHAR_USERDEF, LITERAL) /* 'char'_suffix - C++-0x */ \ |
134 | TK(WCHAR_USERDEF, LITERAL) /* L'char'_suffix - C++-0x */ \ | |
135 | TK(CHAR16_USERDEF, LITERAL) /* u'char'_suffix - C++-0x */ \ | |
136 | TK(CHAR32_USERDEF, LITERAL) /* U'char'_suffix - C++-0x */ \ | |
fe95b036 | 137 | TK(UTF8CHAR_USERDEF, LITERAL) /* u8'char'_suffix - C++-0x */ \ |
3ce4f9e4 ESR |
138 | TK(STRING_USERDEF, LITERAL) /* "string"_suffix - C++-0x */ \ |
139 | TK(WSTRING_USERDEF, LITERAL) /* L"string"_suffix - C++-0x */ \ | |
140 | TK(STRING16_USERDEF, LITERAL) /* u"string"_suffix - C++-0x */ \ | |
141 | TK(STRING32_USERDEF, LITERAL) /* U"string"_suffix - C++-0x */ \ | |
142 | TK(UTF8STRING_USERDEF,LITERAL) /* u8"string"_suffix - C++-0x */ \ | |
143 | \ | |
21b11495 ZW |
144 | TK(COMMENT, LITERAL) /* Only if output comments. */ \ |
145 | /* SPELL_LITERAL happens to DTRT. */ \ | |
146 | TK(MACRO_ARG, NONE) /* Macro argument. */ \ | |
bc4071dd RH |
147 | TK(PRAGMA, NONE) /* Only for deferred pragmas. */ \ |
148 | TK(PRAGMA_EOL, NONE) /* End-of-line for deferred pragmas. */ \ | |
21b11495 ZW |
149 | TK(PADDING, NONE) /* Whitespace for -E. */ |
150 | ||
151 | #define OP(e, s) CPP_ ## e, | |
152 | #define TK(e, s) CPP_ ## e, | |
3a2b2c7a | 153 | enum cpp_ttype |
c45da1ca | 154 | { |
1368ee70 | 155 | TTYPE_TABLE |
21b11495 ZW |
156 | N_TTYPES, |
157 | ||
083e891e MP |
158 | /* A token type for keywords, as opposed to ordinary identifiers. */ |
159 | CPP_KEYWORD, | |
160 | ||
21b11495 | 161 | /* Positions in the table. */ |
b52dbbf8 | 162 | CPP_LAST_EQ = CPP_LSHIFT, |
21b11495 | 163 | CPP_FIRST_DIGRAPH = CPP_HASH, |
b52dbbf8 | 164 | CPP_LAST_PUNCTUATOR= CPP_ATSIGN, |
21b11495 | 165 | CPP_LAST_CPP_OP = CPP_LESS_EQ |
1368ee70 | 166 | }; |
96be6998 ZW |
167 | #undef OP |
168 | #undef TK | |
1368ee70 | 169 | |
ecfd72e7 | 170 | /* C language kind, used when calling cpp_create_reader. */ |
9f936c86 | 171 | enum c_lang {CLK_GNUC89 = 0, CLK_GNUC99, CLK_GNUC11, CLK_GNUC17, CLK_GNUC2X, |
c76dc9c3 | 172 | CLK_STDC89, CLK_STDC94, CLK_STDC99, CLK_STDC11, CLK_STDC17, |
9f936c86 | 173 | CLK_STDC2X, |
61949153 | 174 | CLK_GNUCXX, CLK_CXX98, CLK_GNUCXX11, CLK_CXX11, |
026a79f7 AS |
175 | CLK_GNUCXX14, CLK_CXX14, CLK_GNUCXX17, CLK_CXX17, |
176 | CLK_GNUCXX2A, CLK_CXX2A, CLK_ASM}; | |
dd07b884 | 177 | |
5d8ebbd8 | 178 | /* Payload of a NUMBER, STRING, CHAR or COMMENT token. */ |
d1b38208 | 179 | struct GTY(()) cpp_string { |
1368ee70 | 180 | unsigned int len; |
f617b8e2 | 181 | const unsigned char *text; |
1368ee70 ZW |
182 | }; |
183 | ||
c5a04734 | 184 | /* Flags for the cpp_token structure. */ |
041c3194 | 185 | #define PREV_WHITE (1 << 0) /* If whitespace before this token. */ |
93c80368 NB |
186 | #define DIGRAPH (1 << 1) /* If it was a digraph. */ |
187 | #define STRINGIFY_ARG (1 << 2) /* If macro argument to be stringified. */ | |
188 | #define PASTE_LEFT (1 << 3) /* If on LHS of a ## operator. */ | |
dd07b884 | 189 | #define NAMED_OP (1 << 4) /* C++ named operators. */ |
81fea426 MP |
190 | #define PREV_FALLTHROUGH (1 << 5) /* On a token preceeded by FALLTHROUGH |
191 | comment. */ | |
4ed5bcfb | 192 | #define BOL (1 << 6) /* Token at beginning of line. */ |
ab84748a VR |
193 | #define PURE_ZERO (1 << 7) /* Single 0 digit, used by the C++ frontend, |
194 | set in c-lex.c. */ | |
aa508502 JM |
195 | #define SP_DIGRAPH (1 << 8) /* # or ## token was a digraph. */ |
196 | #define SP_PREV_WHITE (1 << 9) /* If whitespace before a ## | |
197 | operator, or before this token | |
198 | after a # operator. */ | |
81fea426 | 199 | #define NO_EXPAND (1 << 10) /* Do not macro-expand this token. */ |
9e62c811 | 200 | |
d8044160 GK |
201 | /* Specify which field, if any, of the cpp_token union is used. */ |
202 | ||
203 | enum cpp_token_fld_kind { | |
204 | CPP_TOKEN_FLD_NODE, | |
205 | CPP_TOKEN_FLD_SOURCE, | |
206 | CPP_TOKEN_FLD_STR, | |
207 | CPP_TOKEN_FLD_ARG_NO, | |
9a0c6187 | 208 | CPP_TOKEN_FLD_TOKEN_NO, |
bc4071dd | 209 | CPP_TOKEN_FLD_PRAGMA, |
d8044160 GK |
210 | CPP_TOKEN_FLD_NONE |
211 | }; | |
212 | ||
9a0c6187 JM |
213 | /* A macro argument in the cpp_token union. */ |
214 | struct GTY(()) cpp_macro_arg { | |
215 | /* Argument number. */ | |
216 | unsigned int arg_no; | |
be5ffc59 JM |
217 | /* The original spelling of the macro argument token. */ |
218 | cpp_hashnode * | |
219 | GTY ((nested_ptr (union tree_node, | |
220 | "%h ? CPP_HASHNODE (GCC_IDENT_TO_HT_IDENT (%h)) : NULL", | |
221 | "%h ? HT_IDENT_TO_GCC_IDENT (HT_NODE (%h)) : NULL"))) | |
222 | spelling; | |
9a0c6187 JM |
223 | }; |
224 | ||
225 | /* An identifier in the cpp_token union. */ | |
226 | struct GTY(()) cpp_identifier { | |
227 | /* The canonical (UTF-8) spelling of the identifier. */ | |
228 | cpp_hashnode * | |
229 | GTY ((nested_ptr (union tree_node, | |
230 | "%h ? CPP_HASHNODE (GCC_IDENT_TO_HT_IDENT (%h)) : NULL", | |
231 | "%h ? HT_IDENT_TO_GCC_IDENT (HT_NODE (%h)) : NULL"))) | |
232 | node; | |
be5ffc59 JM |
233 | /* The original spelling of the identifier. */ |
234 | cpp_hashnode * | |
235 | GTY ((nested_ptr (union tree_node, | |
236 | "%h ? CPP_HASHNODE (GCC_IDENT_TO_HT_IDENT (%h)) : NULL", | |
237 | "%h ? HT_IDENT_TO_GCC_IDENT (HT_NODE (%h)) : NULL"))) | |
238 | spelling; | |
9a0c6187 JM |
239 | }; |
240 | ||
1920de47 | 241 | /* A preprocessing token. This has been carefully packed and should |
644eddaa | 242 | occupy 16 bytes on 32-bit hosts and 24 bytes on 64-bit hosts. */ |
d1b38208 | 243 | struct GTY(()) cpp_token { |
620e594b DM |
244 | |
245 | /* Location of first char of token, together with range of full token. */ | |
246 | location_t src_loc; | |
247 | ||
041c3194 | 248 | ENUM_BITFIELD(cpp_ttype) type : CHAR_BIT; /* token type */ |
aa508502 | 249 | unsigned short flags; /* flags - see above */ |
041c3194 | 250 | |
d8044160 | 251 | union cpp_token_u |
1368ee70 | 252 | { |
d8044160 | 253 | /* An identifier. */ |
9a0c6187 | 254 | struct cpp_identifier GTY ((tag ("CPP_TOKEN_FLD_NODE"))) node; |
d8044160 GK |
255 | |
256 | /* Inherit padding from this token. */ | |
257 | cpp_token * GTY ((tag ("CPP_TOKEN_FLD_SOURCE"))) source; | |
258 | ||
259 | /* A string, or number. */ | |
260 | struct cpp_string GTY ((tag ("CPP_TOKEN_FLD_STR"))) str; | |
261 | ||
be5ffc59 | 262 | /* Argument no. (and original spelling) for a CPP_MACRO_ARG. */ |
9a0c6187 JM |
263 | struct cpp_macro_arg GTY ((tag ("CPP_TOKEN_FLD_ARG_NO"))) macro_arg; |
264 | ||
265 | /* Original token no. for a CPP_PASTE (from a sequence of | |
266 | consecutive paste tokens in a macro expansion). */ | |
267 | unsigned int GTY ((tag ("CPP_TOKEN_FLD_TOKEN_NO"))) token_no; | |
bc4071dd RH |
268 | |
269 | /* Caller-supplied identifier for a CPP_PRAGMA. */ | |
270 | unsigned int GTY ((tag ("CPP_TOKEN_FLD_PRAGMA"))) pragma; | |
d8044160 | 271 | } GTY ((desc ("cpp_token_val_index (&%1)"))) val; |
7f2935c7 PB |
272 | }; |
273 | ||
d8044160 | 274 | /* Say which field is in use. */ |
c26302d5 | 275 | extern enum cpp_token_fld_kind cpp_token_val_index (const cpp_token *tok); |
d8044160 | 276 | |
4268e8bb | 277 | /* A type wide enough to hold any multibyte source character. |
625458d0 | 278 | cpplib's character constant interpreter requires an unsigned type. |
43839642 ZW |
279 | Also, a typedef for the signed equivalent. |
280 | The width of this type is capped at 32 bits; there do exist targets | |
281 | where wchar_t is 64 bits, but only in a non-default mode, and there | |
282 | would be no meaningful interpretation for a wchar_t value greater | |
283 | than 2^32 anyway -- the widest wide-character encoding around is | |
284 | ISO 10646, which stops at 2^31. */ | |
285 | #if CHAR_BIT * SIZEOF_INT >= 32 | |
625458d0 | 286 | # define CPPCHAR_SIGNED_T int |
43839642 ZW |
287 | #elif CHAR_BIT * SIZEOF_LONG >= 32 |
288 | # define CPPCHAR_SIGNED_T long | |
625458d0 | 289 | #else |
43839642 | 290 | # error "Cannot find a least-32-bit signed integer type" |
625458d0 NB |
291 | #endif |
292 | typedef unsigned CPPCHAR_SIGNED_T cppchar_t; | |
293 | typedef CPPCHAR_SIGNED_T cppchar_signed_t; | |
0d9f234d | 294 | |
72bb2c39 BI |
295 | /* Style of header dependencies to generate. */ |
296 | enum cpp_deps_style { DEPS_NONE = 0, DEPS_USER, DEPS_SYSTEM }; | |
297 | ||
50668cf6 GK |
298 | /* The possible normalization levels, from most restrictive to least. */ |
299 | enum cpp_normalize_level { | |
300 | /* In NFKC. */ | |
301 | normalized_KC = 0, | |
302 | /* In NFC. */ | |
303 | normalized_C, | |
304 | /* In NFC, except for subsequences where being in NFC would make | |
305 | the identifier invalid. */ | |
306 | normalized_identifier_C, | |
307 | /* Not normalized at all. */ | |
308 | normalized_none | |
309 | }; | |
310 | ||
ae79697b ZW |
311 | /* This structure is nested inside struct cpp_reader, and |
312 | carries all the options visible to the command line. */ | |
313 | struct cpp_options | |
c50bca08 | 314 | { |
6ab3e7dd NB |
315 | /* Characters between tab stops. */ |
316 | unsigned int tabstop; | |
317 | ||
bdb05a7b NB |
318 | /* The language we're preprocessing. */ |
319 | enum c_lang lang; | |
320 | ||
7f2935c7 | 321 | /* Nonzero means use extra default include directories for C++. */ |
ae79697b | 322 | unsigned char cplusplus; |
7f2935c7 | 323 | |
6614fd40 | 324 | /* Nonzero means handle cplusplus style comments. */ |
ae79697b | 325 | unsigned char cplusplus_comments; |
7f2935c7 | 326 | |
899015a0 TT |
327 | /* Nonzero means define __OBJC__, treat @ as a special token, use |
328 | the OBJC[PLUS]_INCLUDE_PATH environment variable, and allow | |
329 | "#import". */ | |
ae79697b | 330 | unsigned char objc; |
7f2935c7 | 331 | |
564ad5f4 | 332 | /* Nonzero means don't copy comments into the output file. */ |
ae79697b | 333 | unsigned char discard_comments; |
7f2935c7 | 334 | |
477cdac7 JT |
335 | /* Nonzero means don't copy comments into the output file during |
336 | macro expansion. */ | |
337 | unsigned char discard_comments_in_macro_exp; | |
338 | ||
041c3194 | 339 | /* Nonzero means process the ISO trigraph sequences. */ |
ae79697b | 340 | unsigned char trigraphs; |
7f2935c7 | 341 | |
9b55f29a NB |
342 | /* Nonzero means process the ISO digraph sequences. */ |
343 | unsigned char digraphs; | |
344 | ||
bdb05a7b NB |
345 | /* Nonzero means to allow hexadecimal floats and LL suffixes. */ |
346 | unsigned char extended_numbers; | |
347 | ||
b6baa67d KVH |
348 | /* Nonzero means process u/U prefix literals (UTF-16/32). */ |
349 | unsigned char uliterals; | |
350 | ||
fe95b036 ESR |
351 | /* Nonzero means process u8 prefixed character literals (UTF-8). */ |
352 | unsigned char utf8_char_literals; | |
353 | ||
7c1ffff9 | 354 | /* Nonzero means process r/R raw strings. If this is set, uliterals |
a48e3dd1 JM |
355 | must be set as well. */ |
356 | unsigned char rliterals; | |
357 | ||
7f2935c7 | 358 | /* Nonzero means print names of header files (-H). */ |
ae79697b | 359 | unsigned char print_include_names; |
7f2935c7 | 360 | |
9fbd3e41 | 361 | /* Nonzero means complain about deprecated features. */ |
e3339d0f | 362 | unsigned char cpp_warn_deprecated; |
9fbd3e41 | 363 | |
7f2935c7 | 364 | /* Nonzero means warn if slash-star appears in a comment. */ |
ae79697b | 365 | unsigned char warn_comments; |
7f2935c7 | 366 | |
e8ff5196 TB |
367 | /* Nonzero means to warn about __DATA__, __TIME__ and __TIMESTAMP__ usage. */ |
368 | unsigned char warn_date_time; | |
369 | ||
b02398bd BE |
370 | /* Nonzero means warn if a user-supplied include directory does not |
371 | exist. */ | |
372 | unsigned char warn_missing_include_dirs; | |
373 | ||
7f2935c7 | 374 | /* Nonzero means warn if there are any trigraphs. */ |
ae79697b | 375 | unsigned char warn_trigraphs; |
7f2935c7 | 376 | |
a5a49440 NB |
377 | /* Nonzero means warn about multicharacter charconsts. */ |
378 | unsigned char warn_multichar; | |
379 | ||
f9a0e96c ZW |
380 | /* Nonzero means warn about various incompatibilities with |
381 | traditional C. */ | |
e3339d0f | 382 | unsigned char cpp_warn_traditional; |
7f2935c7 | 383 | |
cd7ab83f | 384 | /* Nonzero means warn about long long numeric constants. */ |
e3339d0f | 385 | unsigned char cpp_warn_long_long; |
cd7ab83f | 386 | |
909de5da PE |
387 | /* Nonzero means warn about text after an #endif (or #else). */ |
388 | unsigned char warn_endif_labels; | |
389 | ||
68e65275 NB |
390 | /* Nonzero means warn about implicit sign changes owing to integer |
391 | promotions. */ | |
392 | unsigned char warn_num_sign_change; | |
393 | ||
e5b79219 RH |
394 | /* Zero means don't warn about __VA_ARGS__ usage in c89 pedantic mode. |
395 | Presumably the usage is protected by the appropriate #ifdef. */ | |
396 | unsigned char warn_variadic_macros; | |
397 | ||
c047ce93 SB |
398 | /* Nonzero means warn about builtin macros that are redefined or |
399 | explicitly undefined. */ | |
400 | unsigned char warn_builtin_macro_redefined; | |
401 | ||
70f6d5e1 JJ |
402 | /* Different -Wimplicit-fallthrough= levels. */ |
403 | unsigned char cpp_warn_implicit_fallthrough; | |
404 | ||
31031edd JL |
405 | /* Nonzero means we should look for header.gcc files that remap file |
406 | names. */ | |
ae79697b | 407 | unsigned char remap; |
31031edd | 408 | |
eebedaa5 | 409 | /* Zero means dollar signs are punctuation. */ |
ae79697b | 410 | unsigned char dollars_in_ident; |
7f2935c7 | 411 | |
af15a2fe JM |
412 | /* Nonzero means UCNs are accepted in identifiers. */ |
413 | unsigned char extended_identifiers; | |
414 | ||
78b8811a HPN |
415 | /* True if we should warn about dollars in identifiers or numbers |
416 | for this translation unit. */ | |
417 | unsigned char warn_dollars; | |
418 | ||
6ac34fdc | 419 | /* Nonzero means warn if undefined identifiers are evaluated in an #if. */ |
ae79697b | 420 | unsigned char warn_undef; |
6ac34fdc | 421 | |
fb2675cb PB |
422 | /* Nonzero means warn if "defined" is encountered in a place other than |
423 | an #if. */ | |
424 | unsigned char warn_expansion_to_defined; | |
425 | ||
a69cbaac NB |
426 | /* Nonzero means warn of unused macros from the main file. */ |
427 | unsigned char warn_unused_macros; | |
428 | ||
31948547 | 429 | /* Nonzero for the 1999 C Standard, including corrigenda and amendments. */ |
ae79697b | 430 | unsigned char c99; |
31948547 | 431 | |
58551c23 NB |
432 | /* Nonzero if we are conforming to a specific C or C++ standard. */ |
433 | unsigned char std; | |
434 | ||
7f2935c7 | 435 | /* Nonzero means give all the error messages the ANSI standard requires. */ |
e3339d0f | 436 | unsigned char cpp_pedantic; |
7f2935c7 | 437 | |
3773a46b JM |
438 | /* Nonzero means we're looking at already preprocessed code, so don't |
439 | bother trying to do macro expansion and whatnot. */ | |
ae79697b | 440 | unsigned char preprocessed; |
847e697a TT |
441 | |
442 | /* Nonzero means we are going to emit debugging logs during | |
443 | preprocessing. */ | |
444 | unsigned char debug; | |
3773a46b | 445 | |
92582b75 TT |
446 | /* Nonzero means we are tracking locations of tokens involved in |
447 | macro expansion. 1 Means we track the location in degraded mode | |
448 | where we do not track locations of tokens resulting from the | |
449 | expansion of arguments of function-like macro. 2 Means we do | |
450 | track all macro expansions. This last option is the one that | |
451 | consumes the highest amount of memory. */ | |
452 | unsigned char track_macro_expansion; | |
453 | ||
644eddaa | 454 | /* Nonzero means handle C++ alternate operator names. */ |
be768055 | 455 | unsigned char operator_names; |
7e96d768 | 456 | |
3d8b2a98 ILT |
457 | /* Nonzero means warn about use of C++ alternate operator names. */ |
458 | unsigned char warn_cxx_operator_names; | |
459 | ||
004cb263 NB |
460 | /* True for traditional preprocessing. */ |
461 | unsigned char traditional; | |
462 | ||
01187df0 | 463 | /* Nonzero for C++ 2011 Standard user-defined literals. */ |
3ce4f9e4 ESR |
464 | unsigned char user_literals; |
465 | ||
7f5f5f98 OW |
466 | /* Nonzero means warn when a string or character literal is followed by a |
467 | ud-suffix which does not beging with an underscore. */ | |
468 | unsigned char warn_literal_suffix; | |
469 | ||
a4a0016d ESR |
470 | /* Nonzero means interpret imaginary, fixed-point, or other gnu extension |
471 | literal number suffixes as user-defined literal number suffixes. */ | |
472 | unsigned char ext_numeric_literals; | |
473 | ||
d3f4ff8b JM |
474 | /* Nonzero means extended identifiers allow the characters specified |
475 | in C11 and C++11. */ | |
476 | unsigned char c11_identifiers; | |
477 | ||
01187df0 JJ |
478 | /* Nonzero for C++ 2014 Standard binary constants. */ |
479 | unsigned char binary_constants; | |
480 | ||
7057e645 ESR |
481 | /* Nonzero for C++ 2014 Standard digit separators. */ |
482 | unsigned char digit_separators; | |
483 | ||
175a85b2 JM |
484 | /* Nonzero for C2X decimal floating-point constants. */ |
485 | unsigned char dfp_constants; | |
486 | ||
fb771b9d TT |
487 | /* Nonzero for C++2a __VA_OPT__ feature. */ |
488 | unsigned char va_opt; | |
489 | ||
93313b94 JM |
490 | /* Nonzero for the '::' token. */ |
491 | unsigned char scope; | |
492 | ||
e6cc3a24 ZW |
493 | /* Holds the name of the target (execution) character set. */ |
494 | const char *narrow_charset; | |
495 | ||
496 | /* Holds the name of the target wide character set. */ | |
497 | const char *wide_charset; | |
498 | ||
cf551fba EC |
499 | /* Holds the name of the input character set. */ |
500 | const char *input_charset; | |
501 | ||
50668cf6 | 502 | /* The minimum permitted level of normalization before a warning |
1ef33fd4 MLI |
503 | is generated. See enum cpp_normalize_level. */ |
504 | int warn_normalize; | |
50668cf6 | 505 | |
783e2989 NB |
506 | /* True to warn about precompiled header files we couldn't use. */ |
507 | bool warn_invalid_pch; | |
508 | ||
509 | /* True if dependencies should be restored from a precompiled header. */ | |
510 | bool restore_pch_deps; | |
511 | ||
f3bede71 | 512 | /* True if warn about differences between C90 and C99. */ |
dd3ff077 | 513 | signed char cpp_warn_c90_c99_compat; |
f3bede71 | 514 | |
175a85b2 JM |
515 | /* True if warn about differences between C11 and C2X. */ |
516 | signed char cpp_warn_c11_c2x_compat; | |
517 | ||
fe191308 JM |
518 | /* True if warn about differences between C++98 and C++11. */ |
519 | bool cpp_warn_cxx11_compat; | |
520 | ||
f4ff5a69 NB |
521 | /* Dependency generation. */ |
522 | struct | |
523 | { | |
524 | /* Style of header dependencies to generate. */ | |
72bb2c39 | 525 | enum cpp_deps_style style; |
f4ff5a69 NB |
526 | |
527 | /* Assume missing files are generated files. */ | |
528 | bool missing_files; | |
529 | ||
530 | /* Generate phony targets for each dependency apart from the first | |
531 | one. */ | |
532 | bool phony_targets; | |
182d89a3 NB |
533 | |
534 | /* If true, no dependency is generated on the main file. */ | |
535 | bool ignore_main_file; | |
74dc6a11 CD |
536 | |
537 | /* If true, intend to use the preprocessor output (e.g., for compilation) | |
538 | in addition to the dependency info. */ | |
539 | bool need_preprocessor_output; | |
f4ff5a69 NB |
540 | } deps; |
541 | ||
44a147ad NB |
542 | /* Target-specific features set by the front end or client. */ |
543 | ||
544 | /* Precision for target CPP arithmetic, target characters, target | |
545 | ints and target wide characters, respectively. */ | |
546 | size_t precision, char_precision, int_precision, wchar_precision; | |
547 | ||
23ff0223 NB |
548 | /* True means chars (wide chars) are unsigned. */ |
549 | bool unsigned_char, unsigned_wchar; | |
5279d739 | 550 | |
e6cc3a24 ZW |
551 | /* True if the most significant byte in a word has the lowest |
552 | address in memory. */ | |
553 | bool bytes_big_endian; | |
783e2989 | 554 | |
5279d739 ZW |
555 | /* Nonzero means __STDC__ should have the value 0 in system headers. */ |
556 | unsigned char stdc_0_in_system_headers; | |
21b11495 | 557 | |
ccfc4c91 OW |
558 | /* True disables tokenization outside of preprocessing directives. */ |
559 | bool directives_only; | |
5dc99c46 SB |
560 | |
561 | /* True enables canonicalization of system header file paths. */ | |
562 | bool canonical_system_headers; | |
1c6ffbab QZ |
563 | |
564 | /* The maximum depth of the nested #include. */ | |
565 | unsigned int max_include_depth; | |
ae79697b | 566 | }; |
7f2935c7 | 567 | |
c24300ba DM |
568 | /* Diagnostic levels. To get a diagnostic without associating a |
569 | position in the translation unit with it, use cpp_error_with_line | |
570 | with a line number of zero. */ | |
571 | ||
572 | enum cpp_diagnostic_level { | |
573 | /* Warning, an error with -Werror. */ | |
574 | CPP_DL_WARNING = 0, | |
575 | /* Same as CPP_DL_WARNING, except it is not suppressed in system headers. */ | |
576 | CPP_DL_WARNING_SYSHDR, | |
577 | /* Warning, an error with -pedantic-errors or -Werror. */ | |
578 | CPP_DL_PEDWARN, | |
579 | /* An error. */ | |
580 | CPP_DL_ERROR, | |
581 | /* An internal consistency check failed. Prints "internal error: ", | |
582 | otherwise the same as CPP_DL_ERROR. */ | |
583 | CPP_DL_ICE, | |
584 | /* An informative note following a warning. */ | |
585 | CPP_DL_NOTE, | |
586 | /* A fatal error. */ | |
587 | CPP_DL_FATAL | |
588 | }; | |
589 | ||
590 | /* Warning reason codes. Use a reason code of CPP_W_NONE for unclassified | |
591 | warnings and diagnostics that are not warnings. */ | |
592 | ||
593 | enum cpp_warning_reason { | |
594 | CPP_W_NONE = 0, | |
595 | CPP_W_DEPRECATED, | |
596 | CPP_W_COMMENTS, | |
597 | CPP_W_MISSING_INCLUDE_DIRS, | |
598 | CPP_W_TRIGRAPHS, | |
599 | CPP_W_MULTICHAR, | |
600 | CPP_W_TRADITIONAL, | |
601 | CPP_W_LONG_LONG, | |
602 | CPP_W_ENDIF_LABELS, | |
603 | CPP_W_NUM_SIGN_CHANGE, | |
604 | CPP_W_VARIADIC_MACROS, | |
605 | CPP_W_BUILTIN_MACRO_REDEFINED, | |
606 | CPP_W_DOLLARS, | |
607 | CPP_W_UNDEF, | |
608 | CPP_W_UNUSED_MACROS, | |
609 | CPP_W_CXX_OPERATOR_NAMES, | |
610 | CPP_W_NORMALIZE, | |
611 | CPP_W_INVALID_PCH, | |
612 | CPP_W_WARNING_DIRECTIVE, | |
613 | CPP_W_LITERAL_SUFFIX, | |
614 | CPP_W_DATE_TIME, | |
615 | CPP_W_PEDANTIC, | |
616 | CPP_W_C90_C99_COMPAT, | |
175a85b2 | 617 | CPP_W_C11_C2X_COMPAT, |
c24300ba DM |
618 | CPP_W_CXX11_COMPAT, |
619 | CPP_W_EXPANSION_TO_DEFINED | |
620 | }; | |
621 | ||
94d1613b MS |
622 | /* Callback for header lookup for HEADER, which is the name of a |
623 | source file. It is used as a method of last resort to find headers | |
624 | that are not otherwise found during the normal include processing. | |
625 | The return value is the malloced name of a header to try and open, | |
626 | if any, or NULL otherwise. This callback is called only if the | |
627 | header is otherwise unfound. */ | |
e3c287c9 | 628 | typedef const char *(*missing_header_cb)(cpp_reader *, const char *header, cpp_dir **); |
94d1613b | 629 | |
48c4721e | 630 | /* Call backs to cpplib client. */ |
7e96d768 NB |
631 | struct cpp_callbacks |
632 | { | |
97293897 | 633 | /* Called when a new line of preprocessed output is started. */ |
6cf87ca4 | 634 | void (*line_change) (cpp_reader *, const cpp_token *, int); |
4dc299fb PB |
635 | |
636 | /* Called when switching to/from a new file. | |
637 | The line_map is for the new file. It is NULL if there is no new file. | |
638 | (In C this happens when done with <built-in>+<command line> and also | |
639 | when done with a main file.) This can be used for resource cleanup. */ | |
0e50b624 | 640 | void (*file_change) (cpp_reader *, const line_map_ordinary *); |
4dc299fb | 641 | |
b20d9f0c | 642 | void (*dir_change) (cpp_reader *, const char *); |
620e594b | 643 | void (*include) (cpp_reader *, location_t, const unsigned char *, |
cbc43ae0 | 644 | const char *, int, const cpp_token **); |
620e594b DM |
645 | void (*define) (cpp_reader *, location_t, cpp_hashnode *); |
646 | void (*undef) (cpp_reader *, location_t, cpp_hashnode *); | |
647 | void (*ident) (cpp_reader *, location_t, const cpp_string *); | |
648 | void (*def_pragma) (cpp_reader *, location_t); | |
6cf87ca4 ZW |
649 | int (*valid_pch) (cpp_reader *, const char *, int); |
650 | void (*read_pch) (cpp_reader *, const char *, int, const char *); | |
94d1613b | 651 | missing_header_cb missing_header; |
178b58b5 | 652 | |
5950c3c9 BE |
653 | /* Context-sensitive macro support. Returns macro (if any) that should |
654 | be expanded. */ | |
655 | cpp_hashnode * (*macro_to_expand) (cpp_reader *, const cpp_token *); | |
656 | ||
148e4216 JM |
657 | /* Called to emit a diagnostic. This callback receives the |
658 | translated message. */ | |
c24300ba DM |
659 | bool (*diagnostic) (cpp_reader *, |
660 | enum cpp_diagnostic_level, | |
661 | enum cpp_warning_reason, | |
662 | rich_location *, | |
663 | const char *, va_list *) | |
8a645150 | 664 | ATTRIBUTE_FPTR_PRINTF(5,0); |
93d45d9e JM |
665 | |
666 | /* Callbacks for when a macro is expanded, or tested (whether | |
667 | defined or not at the time) in #ifdef, #ifndef or "defined". */ | |
620e594b DM |
668 | void (*used_define) (cpp_reader *, location_t, cpp_hashnode *); |
669 | void (*used_undef) (cpp_reader *, location_t, cpp_hashnode *); | |
93d45d9e JM |
670 | /* Called before #define and #undef or other macro definition |
671 | changes are processed. */ | |
672 | void (*before_define) (cpp_reader *); | |
3de8a540 AC |
673 | /* Called whenever a macro is expanded or tested. |
674 | Second argument is the location of the start of the current expansion. */ | |
620e594b | 675 | void (*used) (cpp_reader *, location_t, cpp_hashnode *); |
8e680db5 | 676 | |
42fd12b1 ESR |
677 | /* Callback to identify whether an attribute exists. */ |
678 | int (*has_attribute) (cpp_reader *); | |
679 | ||
ad1539d5 MS |
680 | /* Callback to determine whether a built-in function is recognized. */ |
681 | int (*has_builtin) (cpp_reader *); | |
682 | ||
800c0e98 NS |
683 | /* Callback that can change a user lazy into normal macro. */ |
684 | void (*user_lazy_macro) (cpp_reader *, cpp_macro *, unsigned); | |
15c98b2e ES |
685 | |
686 | /* Callback to parse SOURCE_DATE_EPOCH from environment. */ | |
687 | time_t (*get_source_date_epoch) (cpp_reader *); | |
cb18fd07 DM |
688 | |
689 | /* Callback for providing suggestions for misspelled directives. */ | |
690 | const char *(*get_suggestion) (cpp_reader *, const char *, const char *const *); | |
05945a1b DM |
691 | |
692 | /* Callback for when a comment is encountered, giving the location | |
693 | of the opening slash, a pointer to the content (which is not | |
694 | necessarily 0-terminated), and the length of the content. | |
695 | The content contains the opening slash-star (or slash-slash), | |
696 | and for C-style comments contains the closing star-slash. For | |
697 | C++-style comments it does not include the terminating newline. */ | |
620e594b | 698 | void (*comment) (cpp_reader *, location_t, const unsigned char *, |
05945a1b | 699 | size_t); |
7365279f BK |
700 | |
701 | /* Callback for filename remapping in __FILE__ and __BASE_FILE__ macro | |
702 | expansions. */ | |
703 | const char *(*remap_filename) (const char*); | |
7e96d768 NB |
704 | }; |
705 | ||
0c539b47 DR |
706 | #ifdef VMS |
707 | #define INO_T_CPP ino_t ino[3] | |
708 | #else | |
709 | #define INO_T_CPP ino_t ino | |
710 | #endif | |
711 | ||
5793b276 | 712 | /* Chain of directories to look for include files in. */ |
8f9b4009 | 713 | struct cpp_dir |
5793b276 NB |
714 | { |
715 | /* NULL-terminated singly-linked list. */ | |
8f9b4009 | 716 | struct cpp_dir *next; |
5793b276 | 717 | |
8f9b4009 | 718 | /* NAME of the directory, NUL-terminated. */ |
5793b276 NB |
719 | char *name; |
720 | unsigned int len; | |
721 | ||
722 | /* One if a system header, two if a system header that has extern | |
723 | "C" guards for C++. */ | |
724 | unsigned char sysp; | |
725 | ||
8f5929e1 JJ |
726 | /* Is this a user-supplied directory? */ |
727 | bool user_supplied_p; | |
728 | ||
729 | /* The canonicalized NAME as determined by lrealpath. This field | |
730 | is only used by hosts that lack reliable inode numbers. */ | |
731 | char *canonical_name; | |
732 | ||
8f9b4009 NB |
733 | /* Mapping of file names for this directory for MS-DOS and related |
734 | platforms. A NULL-terminated array of (from, to) pairs. */ | |
735 | const char **name_map; | |
cf551fba | 736 | |
94d1613b MS |
737 | /* Routine to construct pathname, given the search path name and the |
738 | HEADER we are trying to find, return a constructed pathname to | |
739 | try and open. If this is NULL, the constructed pathname is as | |
740 | constructed by append_file_to_dir. */ | |
741 | char *(*construct) (const char *header, cpp_dir *dir); | |
742 | ||
5793b276 NB |
743 | /* The C front end uses these to recognize duplicated |
744 | directories in the search path. */ | |
0c539b47 | 745 | INO_T_CPP; |
5793b276 NB |
746 | dev_t dev; |
747 | }; | |
748 | ||
10f04917 NS |
749 | /* The kind of the cpp_macro. */ |
750 | enum cpp_macro_kind { | |
751 | cmk_macro, /* An ISO macro (token expansion). */ | |
3fb558b1 | 752 | cmk_assert, /* An assertion. */ |
7692e253 | 753 | cmk_traditional /* A traditional macro (text expansion). */ |
10f04917 NS |
754 | }; |
755 | ||
c5d725c0 NS |
756 | /* Each macro definition is recorded in a cpp_macro structure. |
757 | Variadic macros cannot occur with traditional cpp. */ | |
758 | struct GTY(()) cpp_macro { | |
3fb558b1 NS |
759 | union cpp_parm_u |
760 | { | |
761 | /* Parameters, if any. If parameter names use extended identifiers, | |
762 | the original spelling of those identifiers, not the canonical | |
763 | UTF-8 spelling, goes here. */ | |
764 | cpp_hashnode ** GTY ((tag ("false"), | |
765 | nested_ptr (union tree_node, | |
766 | "%h ? CPP_HASHNODE (GCC_IDENT_TO_HT_IDENT (%h)) : NULL", | |
767 | "%h ? HT_IDENT_TO_GCC_IDENT (HT_NODE (%h)) : NULL"), | |
768 | length ("%1.paramc"))) params; | |
769 | ||
770 | /* If this is an assertion, the next one in the chain. */ | |
771 | cpp_macro *GTY ((tag ("true"))) next; | |
772 | } GTY ((desc ("%1.kind == cmk_assert"))) parm; | |
c5d725c0 | 773 | |
c5d725c0 | 774 | /* Definition line number. */ |
620e594b | 775 | location_t line; |
c5d725c0 | 776 | |
3fb558b1 NS |
777 | /* Number of tokens in body, or bytes for traditional macros. */ |
778 | /* Do we really need 2^32-1 range here? */ | |
c5d725c0 NS |
779 | unsigned int count; |
780 | ||
781 | /* Number of parameters. */ | |
782 | unsigned short paramc; | |
783 | ||
800c0e98 NS |
784 | /* Non-zero if this is a user-lazy macro, value provided by user. */ |
785 | unsigned char lazy; | |
786 | ||
10f04917 NS |
787 | /* The kind of this macro (ISO, trad or assert) */ |
788 | unsigned kind : 2; | |
789 | ||
c5d725c0 NS |
790 | /* If a function-like macro. */ |
791 | unsigned int fun_like : 1; | |
792 | ||
793 | /* If a variadic macro. */ | |
794 | unsigned int variadic : 1; | |
795 | ||
796 | /* If macro defined in system header. */ | |
797 | unsigned int syshdr : 1; | |
798 | ||
799 | /* Nonzero if it has been expanded or had its existence tested. */ | |
800 | unsigned int used : 1; | |
801 | ||
c5d725c0 NS |
802 | /* Indicate whether the tokens include extra CPP_PASTE tokens at the |
803 | end to track invalid redefinitions with consecutive CPP_PASTE | |
804 | tokens. */ | |
805 | unsigned int extra_tokens : 1; | |
10f04917 NS |
806 | |
807 | /* 1 bits spare (32-bit). 33 on 64-bit target. */ | |
808 | ||
809 | union cpp_exp_u | |
810 | { | |
811 | /* Trailing array of replacement tokens (ISO), or assertion body value. */ | |
812 | cpp_token GTY ((tag ("false"), length ("%1.count"))) tokens[1]; | |
813 | ||
814 | /* Pointer to replacement text (traditional). See comment at top | |
815 | of cpptrad.c for how traditional function-like macros are | |
816 | encoded. */ | |
817 | const unsigned char *GTY ((tag ("true"))) text; | |
818 | } GTY ((desc ("%1.kind == cmk_traditional"))) exp; | |
c5d725c0 NS |
819 | }; |
820 | ||
a570d97f NS |
821 | /* Poisoned identifiers are flagged NODE_POISONED. NODE_OPERATOR (C++ |
822 | only) indicates an identifier that behaves like an operator such as | |
823 | "xor". NODE_DIAGNOSTIC is for speed in lex_token: it indicates a | |
93c80368 | 824 | diagnostic may be required for this node. Currently this only |
3d8b2a98 ILT |
825 | applies to __VA_ARGS__, poisoned identifiers, and -Wc++-compat |
826 | warnings about NODE_OPERATOR. */ | |
93c80368 NB |
827 | |
828 | /* Hash node flags. */ | |
829 | #define NODE_OPERATOR (1 << 0) /* C++ named operator. */ | |
830 | #define NODE_POISONED (1 << 1) /* Poisoned identifier. */ | |
a570d97f NS |
831 | #define NODE_DIAGNOSTIC (1 << 2) /* Possible diagnostic when lexed. */ |
832 | #define NODE_WARN (1 << 3) /* Warn if redefined or undefined. */ | |
833 | #define NODE_DISABLED (1 << 4) /* A disabled macro. */ | |
834 | #define NODE_USED (1 << 5) /* Dumped with -dU. */ | |
835 | #define NODE_CONDITIONAL (1 << 6) /* Conditional macro */ | |
836 | #define NODE_WARN_OPERATOR (1 << 7) /* Warn about C++ named operator. */ | |
93c80368 NB |
837 | |
838 | /* Different flavors of hash node. */ | |
f8f769ea ZW |
839 | enum node_type |
840 | { | |
a570d97f NS |
841 | NT_VOID = 0, /* Maybe an assert? */ |
842 | NT_MACRO_ARG, /* A macro arg. */ | |
843 | NT_USER_MACRO, /* A user macro. */ | |
844 | NT_BUILTIN_MACRO, /* A builtin macro. */ | |
845 | NT_MACRO_MASK = NT_USER_MACRO /* Mask for either macro kind. */ | |
93c80368 NB |
846 | }; |
847 | ||
644eddaa NB |
848 | /* Different flavors of builtin macro. _Pragma is an operator, but we |
849 | handle it with the builtin code for efficiency reasons. */ | |
7e5487a2 | 850 | enum cpp_builtin_type |
93c80368 NB |
851 | { |
852 | BT_SPECLINE = 0, /* `__LINE__' */ | |
853 | BT_DATE, /* `__DATE__' */ | |
854 | BT_FILE, /* `__FILE__' */ | |
855 | BT_BASE_FILE, /* `__BASE_FILE__' */ | |
856 | BT_INCLUDE_LEVEL, /* `__INCLUDE_LEVEL__' */ | |
857 | BT_TIME, /* `__TIME__' */ | |
644eddaa | 858 | BT_STDC, /* `__STDC__' */ |
be8ac3e2 | 859 | BT_PRAGMA, /* `_Pragma' operator */ |
a702045a | 860 | BT_TIMESTAMP, /* `__TIMESTAMP__' */ |
8e680db5 | 861 | BT_COUNTER, /* `__COUNTER__' */ |
ad1539d5 MS |
862 | BT_HAS_ATTRIBUTE, /* `__has_attribute__(x)' */ |
863 | BT_HAS_BUILTIN /* `__has_builtin(x)' */ | |
f8f769ea ZW |
864 | }; |
865 | ||
2a967f3d | 866 | #define CPP_HASHNODE(HNODE) ((cpp_hashnode *) (HNODE)) |
43af5ef1 NS |
867 | #define HT_NODE(NODE) (&(NODE)->ident) |
868 | #define NODE_LEN(NODE) HT_LEN (HT_NODE (NODE)) | |
869 | #define NODE_NAME(NODE) HT_STR (HT_NODE (NODE)) | |
f8f769ea | 870 | |
2a967f3d NB |
871 | /* The common part of an identifier node shared amongst all 3 C front |
872 | ends. Also used to store CPP identifiers, which are a superset of | |
873 | identifiers in the grammatical sense. */ | |
c3f829c1 | 874 | |
d1b38208 | 875 | union GTY(()) _cpp_hashnode_value { |
a570d97f NS |
876 | /* Assert (maybe NULL) */ |
877 | cpp_macro * GTY((tag ("NT_VOID"))) answers; | |
878 | /* Macro (never NULL) */ | |
879 | cpp_macro * GTY((tag ("NT_USER_MACRO"))) macro; | |
c3f829c1 | 880 | /* Code for a builtin macro. */ |
a570d97f | 881 | enum cpp_builtin_type GTY ((tag ("NT_BUILTIN_MACRO"))) builtin; |
c3f829c1 | 882 | /* Macro argument index. */ |
a570d97f | 883 | unsigned short GTY ((tag ("NT_MACRO_ARG"))) arg_index; |
c3f829c1 GDR |
884 | }; |
885 | ||
d1b38208 | 886 | struct GTY(()) cpp_hashnode { |
2a967f3d | 887 | struct ht_identifier ident; |
4977bab6 | 888 | unsigned int is_directive : 1; |
cf551fba | 889 | unsigned int directive_index : 7; /* If is_directive, |
4977bab6 | 890 | then index into directive table. |
71c0e7fc | 891 | Otherwise, a NODE_OPERATOR. */ |
2a967f3d | 892 | unsigned char rid_code; /* Rid code - for front ends. */ |
a5a35247 NS |
893 | ENUM_BITFIELD(node_type) type : 2; /* CPP node type. */ |
894 | unsigned int flags : 8; /* CPP flags. */ | |
895 | ||
896 | /* 6 bits spare (plus another 32 on 64-bit hosts). */ | |
f8f769ea | 897 | |
a570d97f | 898 | union _cpp_hashnode_value GTY ((desc ("%1.type"))) value; |
f8f769ea ZW |
899 | }; |
900 | ||
88fa5555 DM |
901 | /* A class for iterating through the source locations within a |
902 | string token (before escapes are interpreted, and before | |
903 | concatenation). */ | |
904 | ||
905 | class cpp_string_location_reader { | |
906 | public: | |
620e594b | 907 | cpp_string_location_reader (location_t src_loc, |
88fa5555 DM |
908 | line_maps *line_table); |
909 | ||
910 | source_range get_next (); | |
911 | ||
912 | private: | |
620e594b | 913 | location_t m_loc; |
88fa5555 | 914 | int m_offset_per_column; |
88fa5555 DM |
915 | }; |
916 | ||
917 | /* A class for storing the source ranges of all of the characters within | |
918 | a string literal, after escapes are interpreted, and after | |
919 | concatenation. | |
920 | ||
921 | This is not GTY-marked, as instances are intended to be temporary. */ | |
922 | ||
923 | class cpp_substring_ranges | |
924 | { | |
925 | public: | |
926 | cpp_substring_ranges (); | |
927 | ~cpp_substring_ranges (); | |
928 | ||
929 | int get_num_ranges () const { return m_num_ranges; } | |
930 | source_range get_range (int idx) const | |
931 | { | |
932 | linemap_assert (idx < m_num_ranges); | |
933 | return m_ranges[idx]; | |
934 | } | |
935 | ||
936 | void add_range (source_range range); | |
937 | void add_n_ranges (int num, cpp_string_location_reader &loc_reader); | |
938 | ||
939 | private: | |
940 | source_range *m_ranges; | |
941 | int m_num_ranges; | |
942 | int m_alloc_ranges; | |
943 | }; | |
944 | ||
b4e46cea PB |
945 | /* Call this first to get a handle to pass to other functions. |
946 | ||
947 | If you want cpplib to manage its own hashtable, pass in a NULL | |
948 | pointer. Otherwise you should pass in an initialized hash table | |
949 | that cpplib will share; this technique is used by the C front | |
950 | ends. */ | |
50f59cd7 | 951 | extern cpp_reader *cpp_create_reader (enum c_lang, struct ht *, |
99b1c316 | 952 | class line_maps *); |
400023a3 | 953 | |
5ffeb913 TT |
954 | /* Reset the cpp_reader's line_map. This is only used after reading a |
955 | PCH file. */ | |
99b1c316 | 956 | extern void cpp_set_line_map (cpp_reader *, class line_maps *); |
5ffeb913 | 957 | |
f749a36b NB |
958 | /* Call this to change the selected language standard (e.g. because of |
959 | command line options). */ | |
6cf87ca4 | 960 | extern void cpp_set_lang (cpp_reader *, enum c_lang); |
f749a36b | 961 | |
5793b276 | 962 | /* Set the include paths. */ |
8f9b4009 | 963 | extern void cpp_set_include_chains (cpp_reader *, cpp_dir *, cpp_dir *, int); |
5793b276 | 964 | |
c6e83800 ZW |
965 | /* Call these to get pointers to the options, callback, and deps |
966 | structures for a given reader. These pointers are good until you | |
967 | call cpp_finish on that reader. You can either edit the callbacks | |
7e96d768 NB |
968 | through the pointer returned from cpp_get_callbacks, or set them |
969 | with cpp_set_callbacks. */ | |
6cf87ca4 | 970 | extern cpp_options *cpp_get_options (cpp_reader *); |
6cf87ca4 ZW |
971 | extern cpp_callbacks *cpp_get_callbacks (cpp_reader *); |
972 | extern void cpp_set_callbacks (cpp_reader *, cpp_callbacks *); | |
99b1c316 | 973 | extern class mkdeps *cpp_get_deps (cpp_reader *); |
7e96d768 | 974 | |
8e9ea4d7 PB |
975 | /* This function reads the file, but does not start preprocessing. It |
976 | returns the name of the original file; this is the same as the | |
977 | input file, except for preprocessed input. This will generate at | |
978 | least one file change callback, and possibly a line change callback | |
9ac97460 | 979 | too. If there was an error opening the file, it returns NULL. */ |
8e9ea4d7 | 980 | extern const char *cpp_read_main_file (cpp_reader *, const char *); |
f5e99456 | 981 | |
ccfc4c91 OW |
982 | /* Set up built-ins with special behavior. Use cpp_init_builtins() |
983 | instead unless your know what you are doing. */ | |
984 | extern void cpp_init_special_builtins (cpp_reader *); | |
985 | ||
c1bad961 | 986 | /* Set up built-ins like __FILE__. */ |
6cf87ca4 | 987 | extern void cpp_init_builtins (cpp_reader *, int); |
f5e99456 | 988 | |
4169c321 | 989 | /* This is called after options have been parsed, and partially |
59e4e217 | 990 | processed. */ |
4169c321 PB |
991 | extern void cpp_post_options (cpp_reader *); |
992 | ||
e6cc3a24 ZW |
993 | /* Set up translation to the target character set. */ |
994 | extern void cpp_init_iconv (cpp_reader *); | |
995 | ||
f4ff5a69 NB |
996 | /* Call this to finish preprocessing. If you requested dependency |
997 | generation, pass an open stream to write the information to, | |
148e4216 JM |
998 | otherwise NULL. It is your responsibility to close the stream. */ |
999 | extern void cpp_finish (cpp_reader *, FILE *deps_stream); | |
f4ff5a69 | 1000 | |
f5e99456 | 1001 | /* Call this to release the handle at the end of preprocessing. Any |
148e4216 | 1002 | use of the handle after this function returns is invalid. */ |
6cf87ca4 | 1003 | extern void cpp_destroy (cpp_reader *); |
f5e99456 | 1004 | |
6cf87ca4 ZW |
1005 | extern unsigned int cpp_token_len (const cpp_token *); |
1006 | extern unsigned char *cpp_token_as_text (cpp_reader *, const cpp_token *); | |
1007 | extern unsigned char *cpp_spell_token (cpp_reader *, const cpp_token *, | |
47e20491 | 1008 | unsigned char *, bool); |
6cf87ca4 | 1009 | extern void cpp_register_pragma (cpp_reader *, const char *, const char *, |
b5b3e36a | 1010 | void (*) (cpp_reader *), bool); |
bc4071dd RH |
1011 | extern void cpp_register_deferred_pragma (cpp_reader *, const char *, |
1012 | const char *, unsigned, bool, bool); | |
6cf87ca4 ZW |
1013 | extern int cpp_avoid_paste (cpp_reader *, const cpp_token *, |
1014 | const cpp_token *); | |
1015 | extern const cpp_token *cpp_get_token (cpp_reader *); | |
5ffeb913 | 1016 | extern const cpp_token *cpp_get_token_with_location (cpp_reader *, |
620e594b | 1017 | location_t *); |
3f6677f4 NS |
1018 | inline bool cpp_user_macro_p (const cpp_hashnode *node) |
1019 | { | |
a570d97f | 1020 | return node->type == NT_USER_MACRO; |
3f6677f4 NS |
1021 | } |
1022 | inline bool cpp_builtin_macro_p (const cpp_hashnode *node) | |
1023 | { | |
a570d97f | 1024 | return node->type == NT_BUILTIN_MACRO; |
3f6677f4 NS |
1025 | } |
1026 | inline bool cpp_macro_p (const cpp_hashnode *node) | |
1027 | { | |
a570d97f | 1028 | return node->type & NT_MACRO_MASK; |
3f6677f4 | 1029 | } |
a5a35247 | 1030 | |
3f6677f4 | 1031 | /* Returns true if NODE is a function-like user macro. */ |
7692e253 NS |
1032 | inline bool cpp_fun_like_macro_p (cpp_hashnode *node) |
1033 | { | |
1034 | return cpp_user_macro_p (node) && node->value.macro->fun_like; | |
1035 | } | |
3f6677f4 | 1036 | |
6cf87ca4 | 1037 | extern const unsigned char *cpp_macro_definition (cpp_reader *, |
8e680db5 | 1038 | cpp_hashnode *); |
620e594b | 1039 | inline location_t cpp_macro_definition_location (cpp_hashnode *node) |
c9fb347e NS |
1040 | { |
1041 | return node->value.macro->line; | |
1042 | } | |
6cf87ca4 | 1043 | extern void _cpp_backup_tokens (cpp_reader *, unsigned int); |
5950c3c9 | 1044 | extern const cpp_token *cpp_peek_token (cpp_reader *, int); |
041c3194 | 1045 | |
2c6e3f55 | 1046 | /* Evaluate a CPP_*CHAR* token. */ |
6cf87ca4 ZW |
1047 | extern cppchar_t cpp_interpret_charconst (cpp_reader *, const cpp_token *, |
1048 | unsigned int *, int *); | |
2c6e3f55 | 1049 | /* Evaluate a vector of CPP_*STRING* tokens. */ |
e6cc3a24 ZW |
1050 | extern bool cpp_interpret_string (cpp_reader *, |
1051 | const cpp_string *, size_t, | |
b6baa67d | 1052 | cpp_string *, enum cpp_ttype); |
88fa5555 DM |
1053 | extern const char *cpp_interpret_string_ranges (cpp_reader *pfile, |
1054 | const cpp_string *from, | |
1055 | cpp_string_location_reader *, | |
1056 | size_t count, | |
1057 | cpp_substring_ranges *out, | |
1058 | enum cpp_ttype type); | |
423e95e2 EC |
1059 | extern bool cpp_interpret_string_notranslate (cpp_reader *, |
1060 | const cpp_string *, size_t, | |
b6baa67d | 1061 | cpp_string *, enum cpp_ttype); |
c8a96070 | 1062 | |
c5ff069d ZW |
1063 | /* Convert a host character constant to the execution character set. */ |
1064 | extern cppchar_t cpp_host_to_exec_charset (cpp_reader *, cppchar_t); | |
1065 | ||
c1bad961 | 1066 | /* Used to register macros and assertions, perhaps from the command line. |
3d90d290 | 1067 | The text is the same as the command line argument. */ |
6cf87ca4 | 1068 | extern void cpp_define (cpp_reader *, const char *); |
28f68625 DF |
1069 | extern void cpp_define_formatted (cpp_reader *pfile, |
1070 | const char *fmt, ...) ATTRIBUTE_PRINTF_2; | |
6cf87ca4 ZW |
1071 | extern void cpp_assert (cpp_reader *, const char *); |
1072 | extern void cpp_undef (cpp_reader *, const char *); | |
1073 | extern void cpp_unassert (cpp_reader *, const char *); | |
7f2935c7 | 1074 | |
800c0e98 NS |
1075 | /* Mark a node as a lazily defined macro. */ |
1076 | extern void cpp_define_lazily (cpp_reader *, cpp_hashnode *node, unsigned N); | |
1077 | ||
d1bd0ded GK |
1078 | /* Undefine all macros and assertions. */ |
1079 | extern void cpp_undef_all (cpp_reader *); | |
1080 | ||
6cf87ca4 | 1081 | extern cpp_buffer *cpp_push_buffer (cpp_reader *, const unsigned char *, |
4dc299fb | 1082 | size_t, int); |
6cf87ca4 | 1083 | extern int cpp_defined (cpp_reader *, const unsigned char *, int); |
c5a04734 | 1084 | |
cd7ab83f NB |
1085 | /* A preprocessing number. Code assumes that any unused high bits of |
1086 | the double integer are set to zero. */ | |
54da09ee | 1087 | |
edf6ddf6 | 1088 | /* This type has to be equal to unsigned HOST_WIDE_INT, see |
54da09ee | 1089 | gcc/c-family/c-lex.c. */ |
edf6ddf6 | 1090 | typedef uint64_t cpp_num_part; |
cd7ab83f NB |
1091 | typedef struct cpp_num cpp_num; |
1092 | struct cpp_num | |
1093 | { | |
1094 | cpp_num_part high; | |
1095 | cpp_num_part low; | |
1096 | bool unsignedp; /* True if value should be treated as unsigned. */ | |
1097 | bool overflow; /* True if the most recent calculation overflowed. */ | |
1098 | }; | |
1099 | ||
1100 | /* cpplib provides two interfaces for interpretation of preprocessing | |
1101 | numbers. | |
1102 | ||
1103 | cpp_classify_number categorizes numeric constants according to | |
1104 | their field (integer, floating point, or invalid), radix (decimal, | |
1105 | octal, hexadecimal), and type suffixes. */ | |
1106 | ||
1107 | #define CPP_N_CATEGORY 0x000F | |
1108 | #define CPP_N_INVALID 0x0000 | |
1109 | #define CPP_N_INTEGER 0x0001 | |
1110 | #define CPP_N_FLOATING 0x0002 | |
1111 | ||
1112 | #define CPP_N_WIDTH 0x00F0 | |
8204be6c | 1113 | #define CPP_N_SMALL 0x0010 /* int, float, short _Fract/Accum */ |
ac6b1c67 CF |
1114 | #define CPP_N_MEDIUM 0x0020 /* long, double, long _Fract/_Accum. */ |
1115 | #define CPP_N_LARGE 0x0040 /* long long, long double, | |
1116 | long long _Fract/Accum. */ | |
cd7ab83f | 1117 | |
c77cd3d1 UB |
1118 | #define CPP_N_WIDTH_MD 0xF0000 /* machine defined. */ |
1119 | #define CPP_N_MD_W 0x10000 | |
1120 | #define CPP_N_MD_Q 0x20000 | |
1121 | ||
cd7ab83f NB |
1122 | #define CPP_N_RADIX 0x0F00 |
1123 | #define CPP_N_DECIMAL 0x0100 | |
1124 | #define CPP_N_HEX 0x0200 | |
1125 | #define CPP_N_OCTAL 0x0400 | |
f7fd775f | 1126 | #define CPP_N_BINARY 0x0800 |
cd7ab83f NB |
1127 | |
1128 | #define CPP_N_UNSIGNED 0x1000 /* Properties. */ | |
1129 | #define CPP_N_IMAGINARY 0x2000 | |
ad6ed77e | 1130 | #define CPP_N_DFLOAT 0x4000 |
839a3b8a | 1131 | #define CPP_N_DEFAULT 0x8000 |
cd7ab83f | 1132 | |
ac6b1c67 CF |
1133 | #define CPP_N_FRACT 0x100000 /* Fract types. */ |
1134 | #define CPP_N_ACCUM 0x200000 /* Accum types. */ | |
c65699ef JM |
1135 | #define CPP_N_FLOATN 0x400000 /* _FloatN types. */ |
1136 | #define CPP_N_FLOATNX 0x800000 /* _FloatNx types. */ | |
ac6b1c67 | 1137 | |
3ce4f9e4 ESR |
1138 | #define CPP_N_USERDEF 0x1000000 /* C++0x user-defined literal. */ |
1139 | ||
c65699ef JM |
1140 | #define CPP_N_WIDTH_FLOATN_NX 0xF0000000 /* _FloatN / _FloatNx value |
1141 | of N, divided by 16. */ | |
1142 | #define CPP_FLOATN_SHIFT 24 | |
1143 | #define CPP_FLOATN_MAX 0xF0 | |
1144 | ||
cd7ab83f NB |
1145 | /* Classify a CPP_NUMBER token. The return value is a combination of |
1146 | the flags from the above sets. */ | |
3ce4f9e4 | 1147 | extern unsigned cpp_classify_number (cpp_reader *, const cpp_token *, |
620e594b | 1148 | const char **, location_t); |
3ce4f9e4 ESR |
1149 | |
1150 | /* Return the classification flags for a float suffix. */ | |
a4a0016d ESR |
1151 | extern unsigned int cpp_interpret_float_suffix (cpp_reader *, const char *, |
1152 | size_t); | |
3ce4f9e4 ESR |
1153 | |
1154 | /* Return the classification flags for an int suffix. */ | |
a4a0016d ESR |
1155 | extern unsigned int cpp_interpret_int_suffix (cpp_reader *, const char *, |
1156 | size_t); | |
cd7ab83f NB |
1157 | |
1158 | /* Evaluate a token classified as category CPP_N_INTEGER. */ | |
6cf87ca4 | 1159 | extern cpp_num cpp_interpret_integer (cpp_reader *, const cpp_token *, |
3ce4f9e4 | 1160 | unsigned int); |
cd7ab83f | 1161 | |
ceeedfc1 NB |
1162 | /* Sign extend a number, with PRECISION significant bits and all |
1163 | others assumed clear, to fill out a cpp_num structure. */ | |
6cf87ca4 | 1164 | cpp_num cpp_num_sign_extend (cpp_num, size_t); |
ceeedfc1 | 1165 | |
ebef4e8c | 1166 | /* Output a diagnostic of some kind. */ |
c24300ba DM |
1167 | extern bool cpp_error (cpp_reader *, enum cpp_diagnostic_level, |
1168 | const char *msgid, ...) | |
ebef4e8c | 1169 | ATTRIBUTE_PRINTF_3; |
c24300ba DM |
1170 | extern bool cpp_warning (cpp_reader *, enum cpp_warning_reason, |
1171 | const char *msgid, ...) | |
87cf0651 | 1172 | ATTRIBUTE_PRINTF_3; |
c24300ba DM |
1173 | extern bool cpp_pedwarning (cpp_reader *, enum cpp_warning_reason, |
1174 | const char *msgid, ...) | |
87cf0651 | 1175 | ATTRIBUTE_PRINTF_3; |
c24300ba DM |
1176 | extern bool cpp_warning_syshdr (cpp_reader *, enum cpp_warning_reason reason, |
1177 | const char *msgid, ...) | |
87cf0651 | 1178 | ATTRIBUTE_PRINTF_3; |
ebef4e8c | 1179 | |
6cf87ca4 | 1180 | /* Output a diagnostic with "MSGID: " preceding the |
ebef4e8c | 1181 | error string of errno. No location is printed. */ |
c24300ba DM |
1182 | extern bool cpp_errno (cpp_reader *, enum cpp_diagnostic_level, |
1183 | const char *msgid); | |
46ce03de JJ |
1184 | /* Similarly, but with "FILENAME: " instead of "MSGID: ", where |
1185 | the filename is not localized. */ | |
c24300ba | 1186 | extern bool cpp_errno_filename (cpp_reader *, enum cpp_diagnostic_level, |
620e594b | 1187 | const char *filename, location_t loc); |
ebef4e8c NB |
1188 | |
1189 | /* Same as cpp_error, except additionally specifies a position as a | |
1190 | (translation unit) physical line and physical column. If the line is | |
1191 | zero, then no location is printed. */ | |
c24300ba | 1192 | extern bool cpp_error_with_line (cpp_reader *, enum cpp_diagnostic_level, |
620e594b | 1193 | location_t, unsigned, |
c24300ba | 1194 | const char *msgid, ...) |
87cf0651 | 1195 | ATTRIBUTE_PRINTF_5; |
c24300ba | 1196 | extern bool cpp_warning_with_line (cpp_reader *, enum cpp_warning_reason, |
620e594b | 1197 | location_t, unsigned, |
c24300ba | 1198 | const char *msgid, ...) |
87cf0651 | 1199 | ATTRIBUTE_PRINTF_5; |
c24300ba | 1200 | extern bool cpp_pedwarning_with_line (cpp_reader *, enum cpp_warning_reason, |
620e594b | 1201 | location_t, unsigned, |
c24300ba | 1202 | const char *msgid, ...) |
87cf0651 | 1203 | ATTRIBUTE_PRINTF_5; |
c24300ba | 1204 | extern bool cpp_warning_with_line_syshdr (cpp_reader *, enum cpp_warning_reason, |
620e594b | 1205 | location_t, unsigned, |
c24300ba | 1206 | const char *msgid, ...) |
87cf0651 | 1207 | ATTRIBUTE_PRINTF_5; |
f2d5f0cc | 1208 | |
c24300ba | 1209 | extern bool cpp_error_at (cpp_reader * pfile, enum cpp_diagnostic_level, |
620e594b | 1210 | location_t src_loc, const char *msgid, ...) |
ac81cf0b DM |
1211 | ATTRIBUTE_PRINTF_4; |
1212 | ||
c24300ba DM |
1213 | extern bool cpp_error_at (cpp_reader * pfile, enum cpp_diagnostic_level, |
1214 | rich_location *richloc, const char *msgid, ...) | |
cb18fd07 DM |
1215 | ATTRIBUTE_PRINTF_4; |
1216 | ||
28f68625 | 1217 | /* In lex.c */ |
6cf87ca4 ZW |
1218 | extern int cpp_ideq (const cpp_token *, const char *); |
1219 | extern void cpp_output_line (cpp_reader *, FILE *); | |
5d6342eb TT |
1220 | extern unsigned char *cpp_output_line_to_string (cpp_reader *, |
1221 | const unsigned char *); | |
6cf87ca4 | 1222 | extern void cpp_output_token (const cpp_token *, FILE *); |
cfc93532 | 1223 | extern const char *cpp_type2name (enum cpp_ttype, unsigned char flags); |
4268e8bb NB |
1224 | /* Returns the value of an escape sequence, truncated to the correct |
1225 | target precision. PSTR points to the input pointer, which is just | |
1226 | after the backslash. LIMIT is how much text we have. WIDE is true | |
1227 | if the escape sequence is part of a wide character constant or | |
1228 | string literal. Handles all relevant diagnostics. */ | |
6cf87ca4 ZW |
1229 | extern cppchar_t cpp_parse_escape (cpp_reader *, const unsigned char ** pstr, |
1230 | const unsigned char *limit, int wide); | |
1368ee70 | 1231 | |
631d0d36 MG |
1232 | /* Structure used to hold a comment block at a given location in the |
1233 | source code. */ | |
1234 | ||
1235 | typedef struct | |
1236 | { | |
1237 | /* Text of the comment including the terminators. */ | |
1238 | char *comment; | |
1239 | ||
1240 | /* source location for the given comment. */ | |
620e594b | 1241 | location_t sloc; |
631d0d36 MG |
1242 | } cpp_comment; |
1243 | ||
1244 | /* Structure holding all comments for a given cpp_reader. */ | |
1245 | ||
1246 | typedef struct | |
1247 | { | |
1248 | /* table of comment entries. */ | |
1249 | cpp_comment *entries; | |
1250 | ||
1251 | /* number of actual entries entered in the table. */ | |
1252 | int count; | |
1253 | ||
1254 | /* number of entries allocated currently. */ | |
1255 | int allocated; | |
1256 | } cpp_comment_table; | |
1257 | ||
1258 | /* Returns the table of comments encountered by the preprocessor. This | |
1259 | table is only populated when pfile->state.save_comments is true. */ | |
1260 | extern cpp_comment_table *cpp_get_comments (cpp_reader *); | |
1261 | ||
28f68625 | 1262 | /* In hash.c */ |
2a967f3d NB |
1263 | |
1264 | /* Lookup an identifier in the hashtable. Puts the identifier in the | |
1265 | table if it is not already there. */ | |
6cf87ca4 ZW |
1266 | extern cpp_hashnode *cpp_lookup (cpp_reader *, const unsigned char *, |
1267 | unsigned int); | |
2a967f3d | 1268 | |
6cf87ca4 ZW |
1269 | typedef int (*cpp_cb) (cpp_reader *, cpp_hashnode *, void *); |
1270 | extern void cpp_forall_identifiers (cpp_reader *, cpp_cb, void *); | |
926c5678 | 1271 | |
28f68625 | 1272 | /* In macro.c */ |
6cf87ca4 ZW |
1273 | extern void cpp_scan_nooutput (cpp_reader *); |
1274 | extern int cpp_sys_macro_p (cpp_reader *); | |
1275 | extern unsigned char *cpp_quote_string (unsigned char *, const unsigned char *, | |
1276 | unsigned int); | |
6de1e2a9 | 1277 | |
28f68625 | 1278 | /* In files.c */ |
8f9b4009 | 1279 | extern bool cpp_included (cpp_reader *, const char *); |
620e594b | 1280 | extern bool cpp_included_before (cpp_reader *, const char *, location_t); |
6cf87ca4 | 1281 | extern void cpp_make_system_header (cpp_reader *, int, int); |
6cf87ca4 | 1282 | extern bool cpp_push_include (cpp_reader *, const char *); |
1efcb8c6 | 1283 | extern bool cpp_push_default_include (cpp_reader *, const char *); |
6cf87ca4 | 1284 | extern void cpp_change_file (cpp_reader *, enum lc_reason, const char *); |
94d1613b | 1285 | extern const char *cpp_get_path (struct _cpp_file *); |
e3c287c9 | 1286 | extern cpp_dir *cpp_get_dir (struct _cpp_file *); |
94d1613b MS |
1287 | extern cpp_buffer *cpp_get_buffer (cpp_reader *); |
1288 | extern struct _cpp_file *cpp_get_file (cpp_buffer *); | |
1289 | extern cpp_buffer *cpp_get_prev (cpp_buffer *); | |
97f6bd40 | 1290 | extern void cpp_clear_file_cache (cpp_reader *); |
b0699dad | 1291 | |
28f68625 | 1292 | /* In pch.c */ |
17211ab5 | 1293 | struct save_macro_data; |
6cf87ca4 ZW |
1294 | extern int cpp_save_state (cpp_reader *, FILE *); |
1295 | extern int cpp_write_pch_deps (cpp_reader *, FILE *); | |
1296 | extern int cpp_write_pch_state (cpp_reader *, FILE *); | |
1297 | extern int cpp_valid_state (cpp_reader *, const char *, int); | |
1298 | extern void cpp_prepare_state (cpp_reader *, struct save_macro_data **); | |
1299 | extern int cpp_read_state (cpp_reader *, const char *, FILE *, | |
1300 | struct save_macro_data *); | |
17211ab5 | 1301 | |
e3dfef44 | 1302 | /* In lex.c */ |
620e594b | 1303 | extern void cpp_force_token_locations (cpp_reader *, location_t); |
e3dfef44 GC |
1304 | extern void cpp_stop_forcing_token_locations (cpp_reader *); |
1305 | ||
3ce4f9e4 ESR |
1306 | /* In expr.c */ |
1307 | extern enum cpp_ttype cpp_userdef_string_remove_type | |
1308 | (enum cpp_ttype type); | |
1309 | extern enum cpp_ttype cpp_userdef_string_add_type | |
1310 | (enum cpp_ttype type); | |
1311 | extern enum cpp_ttype cpp_userdef_char_remove_type | |
1312 | (enum cpp_ttype type); | |
1313 | extern enum cpp_ttype cpp_userdef_char_add_type | |
1314 | (enum cpp_ttype type); | |
1315 | extern bool cpp_userdef_string_p | |
1316 | (enum cpp_ttype type); | |
1317 | extern bool cpp_userdef_char_p | |
1318 | (enum cpp_ttype type); | |
1319 | extern const char * cpp_get_userdef_suffix | |
1320 | (const cpp_token *); | |
1321 | ||
ee925640 LH |
1322 | /* In charset.c */ |
1323 | int cpp_byte_column_to_display_column (const char *data, int data_length, | |
1324 | int column); | |
1325 | inline int cpp_display_width (const char *data, int data_length) | |
1326 | { | |
1327 | return cpp_byte_column_to_display_column (data, data_length, data_length); | |
1328 | } | |
1329 | int cpp_display_column_to_byte_column (const char *data, int data_length, | |
1330 | int display_col); | |
1331 | int cpp_wcwidth (cppchar_t c); | |
1332 | ||
4f4e53dd | 1333 | #endif /* ! LIBCPP_CPPLIB_H */ |