]>
Commit | Line | Data |
---|---|---|
7f2935c7 | 1 | /* Definitions for CPP library. |
818ab71a | 2 | Copyright (C) 1995-2016 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 | |
93c80368 | 39 | struct answer; |
94d1613b | 40 | struct _cpp_file; |
c5a04734 | 41 | |
f8b954fc NB |
42 | /* The first three groups, apart from '=', can appear in preprocessor |
43 | expressions (+= and -= are used to indicate unary + and - resp.). | |
44 | This allows a lookup table to be implemented in _cpp_parse_expr. | |
c5a04734 ZW |
45 | |
46 | The first group, to CPP_LAST_EQ, can be immediately followed by an | |
47 | '='. The lexer needs operators ending in '=', like ">>=", to be in | |
b52dbbf8 SE |
48 | the same order as their counterparts without the '=', like ">>". |
49 | ||
50 | See the cpp_operator table optab in expr.c if you change the order or | |
51 | add or remove anything in the first group. */ | |
c5a04734 | 52 | |
21b11495 ZW |
53 | #define TTYPE_TABLE \ |
54 | OP(EQ, "=") \ | |
55 | OP(NOT, "!") \ | |
56 | OP(GREATER, ">") /* compare */ \ | |
57 | OP(LESS, "<") \ | |
58 | OP(PLUS, "+") /* math */ \ | |
59 | OP(MINUS, "-") \ | |
60 | OP(MULT, "*") \ | |
61 | OP(DIV, "/") \ | |
62 | OP(MOD, "%") \ | |
63 | OP(AND, "&") /* bit ops */ \ | |
64 | OP(OR, "|") \ | |
65 | OP(XOR, "^") \ | |
66 | OP(RSHIFT, ">>") \ | |
67 | OP(LSHIFT, "<<") \ | |
21b11495 ZW |
68 | \ |
69 | OP(COMPL, "~") \ | |
70 | OP(AND_AND, "&&") /* logical */ \ | |
71 | OP(OR_OR, "||") \ | |
72 | OP(QUERY, "?") \ | |
73 | OP(COLON, ":") \ | |
74 | OP(COMMA, ",") /* grouping */ \ | |
75 | OP(OPEN_PAREN, "(") \ | |
76 | OP(CLOSE_PAREN, ")") \ | |
77 | TK(EOF, NONE) \ | |
78 | OP(EQ_EQ, "==") /* compare */ \ | |
79 | OP(NOT_EQ, "!=") \ | |
80 | OP(GREATER_EQ, ">=") \ | |
81 | OP(LESS_EQ, "<=") \ | |
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. */ |
48b0b196 JM |
171 | enum c_lang {CLK_GNUC89 = 0, CLK_GNUC99, CLK_GNUC11, |
172 | CLK_STDC89, CLK_STDC94, CLK_STDC99, CLK_STDC11, | |
61949153 | 173 | CLK_GNUCXX, CLK_CXX98, CLK_GNUCXX11, CLK_CXX11, |
e4276ba5 | 174 | CLK_GNUCXX14, CLK_CXX14, CLK_GNUCXX1Z, CLK_CXX1Z, CLK_ASM}; |
dd07b884 | 175 | |
5d8ebbd8 | 176 | /* Payload of a NUMBER, STRING, CHAR or COMMENT token. */ |
d1b38208 | 177 | struct GTY(()) cpp_string { |
1368ee70 | 178 | unsigned int len; |
f617b8e2 | 179 | const unsigned char *text; |
1368ee70 ZW |
180 | }; |
181 | ||
c5a04734 | 182 | /* Flags for the cpp_token structure. */ |
041c3194 | 183 | #define PREV_WHITE (1 << 0) /* If whitespace before this token. */ |
93c80368 NB |
184 | #define DIGRAPH (1 << 1) /* If it was a digraph. */ |
185 | #define STRINGIFY_ARG (1 << 2) /* If macro argument to be stringified. */ | |
186 | #define PASTE_LEFT (1 << 3) /* If on LHS of a ## operator. */ | |
dd07b884 | 187 | #define NAMED_OP (1 << 4) /* C++ named operators. */ |
93c80368 | 188 | #define NO_EXPAND (1 << 5) /* Do not macro-expand this token. */ |
4ed5bcfb | 189 | #define BOL (1 << 6) /* Token at beginning of line. */ |
ab84748a VR |
190 | #define PURE_ZERO (1 << 7) /* Single 0 digit, used by the C++ frontend, |
191 | set in c-lex.c. */ | |
aa508502 JM |
192 | #define SP_DIGRAPH (1 << 8) /* # or ## token was a digraph. */ |
193 | #define SP_PREV_WHITE (1 << 9) /* If whitespace before a ## | |
194 | operator, or before this token | |
195 | after a # operator. */ | |
9e62c811 | 196 | |
d8044160 GK |
197 | /* Specify which field, if any, of the cpp_token union is used. */ |
198 | ||
199 | enum cpp_token_fld_kind { | |
200 | CPP_TOKEN_FLD_NODE, | |
201 | CPP_TOKEN_FLD_SOURCE, | |
202 | CPP_TOKEN_FLD_STR, | |
203 | CPP_TOKEN_FLD_ARG_NO, | |
9a0c6187 | 204 | CPP_TOKEN_FLD_TOKEN_NO, |
bc4071dd | 205 | CPP_TOKEN_FLD_PRAGMA, |
d8044160 GK |
206 | CPP_TOKEN_FLD_NONE |
207 | }; | |
208 | ||
9a0c6187 JM |
209 | /* A macro argument in the cpp_token union. */ |
210 | struct GTY(()) cpp_macro_arg { | |
211 | /* Argument number. */ | |
212 | unsigned int arg_no; | |
be5ffc59 JM |
213 | /* The original spelling of the macro argument token. */ |
214 | cpp_hashnode * | |
215 | GTY ((nested_ptr (union tree_node, | |
216 | "%h ? CPP_HASHNODE (GCC_IDENT_TO_HT_IDENT (%h)) : NULL", | |
217 | "%h ? HT_IDENT_TO_GCC_IDENT (HT_NODE (%h)) : NULL"))) | |
218 | spelling; | |
9a0c6187 JM |
219 | }; |
220 | ||
221 | /* An identifier in the cpp_token union. */ | |
222 | struct GTY(()) cpp_identifier { | |
223 | /* The canonical (UTF-8) spelling of the identifier. */ | |
224 | cpp_hashnode * | |
225 | GTY ((nested_ptr (union tree_node, | |
226 | "%h ? CPP_HASHNODE (GCC_IDENT_TO_HT_IDENT (%h)) : NULL", | |
227 | "%h ? HT_IDENT_TO_GCC_IDENT (HT_NODE (%h)) : NULL"))) | |
228 | node; | |
be5ffc59 JM |
229 | /* The original spelling of the identifier. */ |
230 | cpp_hashnode * | |
231 | GTY ((nested_ptr (union tree_node, | |
232 | "%h ? CPP_HASHNODE (GCC_IDENT_TO_HT_IDENT (%h)) : NULL", | |
233 | "%h ? HT_IDENT_TO_GCC_IDENT (HT_NODE (%h)) : NULL"))) | |
234 | spelling; | |
9a0c6187 JM |
235 | }; |
236 | ||
1920de47 | 237 | /* A preprocessing token. This has been carefully packed and should |
644eddaa | 238 | occupy 16 bytes on 32-bit hosts and 24 bytes on 64-bit hosts. */ |
d1b38208 | 239 | struct GTY(()) cpp_token { |
ebedc9a3 DM |
240 | source_location src_loc; /* Location of first char of token, |
241 | together with range of full token. */ | |
041c3194 | 242 | ENUM_BITFIELD(cpp_ttype) type : CHAR_BIT; /* token type */ |
aa508502 | 243 | unsigned short flags; /* flags - see above */ |
041c3194 | 244 | |
d8044160 | 245 | union cpp_token_u |
1368ee70 | 246 | { |
d8044160 | 247 | /* An identifier. */ |
9a0c6187 | 248 | struct cpp_identifier GTY ((tag ("CPP_TOKEN_FLD_NODE"))) node; |
d8044160 GK |
249 | |
250 | /* Inherit padding from this token. */ | |
251 | cpp_token * GTY ((tag ("CPP_TOKEN_FLD_SOURCE"))) source; | |
252 | ||
253 | /* A string, or number. */ | |
254 | struct cpp_string GTY ((tag ("CPP_TOKEN_FLD_STR"))) str; | |
255 | ||
be5ffc59 | 256 | /* Argument no. (and original spelling) for a CPP_MACRO_ARG. */ |
9a0c6187 JM |
257 | struct cpp_macro_arg GTY ((tag ("CPP_TOKEN_FLD_ARG_NO"))) macro_arg; |
258 | ||
259 | /* Original token no. for a CPP_PASTE (from a sequence of | |
260 | consecutive paste tokens in a macro expansion). */ | |
261 | unsigned int GTY ((tag ("CPP_TOKEN_FLD_TOKEN_NO"))) token_no; | |
bc4071dd RH |
262 | |
263 | /* Caller-supplied identifier for a CPP_PRAGMA. */ | |
264 | unsigned int GTY ((tag ("CPP_TOKEN_FLD_PRAGMA"))) pragma; | |
d8044160 | 265 | } GTY ((desc ("cpp_token_val_index (&%1)"))) val; |
7f2935c7 PB |
266 | }; |
267 | ||
d8044160 | 268 | /* Say which field is in use. */ |
c26302d5 | 269 | extern enum cpp_token_fld_kind cpp_token_val_index (const cpp_token *tok); |
d8044160 | 270 | |
4268e8bb | 271 | /* A type wide enough to hold any multibyte source character. |
625458d0 | 272 | cpplib's character constant interpreter requires an unsigned type. |
43839642 ZW |
273 | Also, a typedef for the signed equivalent. |
274 | The width of this type is capped at 32 bits; there do exist targets | |
275 | where wchar_t is 64 bits, but only in a non-default mode, and there | |
276 | would be no meaningful interpretation for a wchar_t value greater | |
277 | than 2^32 anyway -- the widest wide-character encoding around is | |
278 | ISO 10646, which stops at 2^31. */ | |
279 | #if CHAR_BIT * SIZEOF_INT >= 32 | |
625458d0 | 280 | # define CPPCHAR_SIGNED_T int |
43839642 ZW |
281 | #elif CHAR_BIT * SIZEOF_LONG >= 32 |
282 | # define CPPCHAR_SIGNED_T long | |
625458d0 | 283 | #else |
43839642 | 284 | # error "Cannot find a least-32-bit signed integer type" |
625458d0 NB |
285 | #endif |
286 | typedef unsigned CPPCHAR_SIGNED_T cppchar_t; | |
287 | typedef CPPCHAR_SIGNED_T cppchar_signed_t; | |
0d9f234d | 288 | |
72bb2c39 BI |
289 | /* Style of header dependencies to generate. */ |
290 | enum cpp_deps_style { DEPS_NONE = 0, DEPS_USER, DEPS_SYSTEM }; | |
291 | ||
50668cf6 GK |
292 | /* The possible normalization levels, from most restrictive to least. */ |
293 | enum cpp_normalize_level { | |
294 | /* In NFKC. */ | |
295 | normalized_KC = 0, | |
296 | /* In NFC. */ | |
297 | normalized_C, | |
298 | /* In NFC, except for subsequences where being in NFC would make | |
299 | the identifier invalid. */ | |
300 | normalized_identifier_C, | |
301 | /* Not normalized at all. */ | |
302 | normalized_none | |
303 | }; | |
304 | ||
ae79697b ZW |
305 | /* This structure is nested inside struct cpp_reader, and |
306 | carries all the options visible to the command line. */ | |
307 | struct cpp_options | |
c50bca08 | 308 | { |
6ab3e7dd NB |
309 | /* Characters between tab stops. */ |
310 | unsigned int tabstop; | |
311 | ||
bdb05a7b NB |
312 | /* The language we're preprocessing. */ |
313 | enum c_lang lang; | |
314 | ||
7f2935c7 | 315 | /* Nonzero means use extra default include directories for C++. */ |
ae79697b | 316 | unsigned char cplusplus; |
7f2935c7 | 317 | |
6614fd40 | 318 | /* Nonzero means handle cplusplus style comments. */ |
ae79697b | 319 | unsigned char cplusplus_comments; |
7f2935c7 | 320 | |
899015a0 TT |
321 | /* Nonzero means define __OBJC__, treat @ as a special token, use |
322 | the OBJC[PLUS]_INCLUDE_PATH environment variable, and allow | |
323 | "#import". */ | |
ae79697b | 324 | unsigned char objc; |
7f2935c7 | 325 | |
564ad5f4 | 326 | /* Nonzero means don't copy comments into the output file. */ |
ae79697b | 327 | unsigned char discard_comments; |
7f2935c7 | 328 | |
477cdac7 JT |
329 | /* Nonzero means don't copy comments into the output file during |
330 | macro expansion. */ | |
331 | unsigned char discard_comments_in_macro_exp; | |
332 | ||
041c3194 | 333 | /* Nonzero means process the ISO trigraph sequences. */ |
ae79697b | 334 | unsigned char trigraphs; |
7f2935c7 | 335 | |
9b55f29a NB |
336 | /* Nonzero means process the ISO digraph sequences. */ |
337 | unsigned char digraphs; | |
338 | ||
bdb05a7b NB |
339 | /* Nonzero means to allow hexadecimal floats and LL suffixes. */ |
340 | unsigned char extended_numbers; | |
341 | ||
b6baa67d KVH |
342 | /* Nonzero means process u/U prefix literals (UTF-16/32). */ |
343 | unsigned char uliterals; | |
344 | ||
fe95b036 ESR |
345 | /* Nonzero means process u8 prefixed character literals (UTF-8). */ |
346 | unsigned char utf8_char_literals; | |
347 | ||
7c1ffff9 | 348 | /* Nonzero means process r/R raw strings. If this is set, uliterals |
a48e3dd1 JM |
349 | must be set as well. */ |
350 | unsigned char rliterals; | |
351 | ||
7f2935c7 | 352 | /* Nonzero means print names of header files (-H). */ |
ae79697b | 353 | unsigned char print_include_names; |
7f2935c7 | 354 | |
9fbd3e41 | 355 | /* Nonzero means complain about deprecated features. */ |
e3339d0f | 356 | unsigned char cpp_warn_deprecated; |
9fbd3e41 | 357 | |
7f2935c7 | 358 | /* Nonzero means warn if slash-star appears in a comment. */ |
ae79697b | 359 | unsigned char warn_comments; |
7f2935c7 | 360 | |
e8ff5196 TB |
361 | /* Nonzero means to warn about __DATA__, __TIME__ and __TIMESTAMP__ usage. */ |
362 | unsigned char warn_date_time; | |
363 | ||
b02398bd BE |
364 | /* Nonzero means warn if a user-supplied include directory does not |
365 | exist. */ | |
366 | unsigned char warn_missing_include_dirs; | |
367 | ||
7f2935c7 | 368 | /* Nonzero means warn if there are any trigraphs. */ |
ae79697b | 369 | unsigned char warn_trigraphs; |
7f2935c7 | 370 | |
a5a49440 NB |
371 | /* Nonzero means warn about multicharacter charconsts. */ |
372 | unsigned char warn_multichar; | |
373 | ||
f9a0e96c ZW |
374 | /* Nonzero means warn about various incompatibilities with |
375 | traditional C. */ | |
e3339d0f | 376 | unsigned char cpp_warn_traditional; |
7f2935c7 | 377 | |
cd7ab83f | 378 | /* Nonzero means warn about long long numeric constants. */ |
e3339d0f | 379 | unsigned char cpp_warn_long_long; |
cd7ab83f | 380 | |
909de5da PE |
381 | /* Nonzero means warn about text after an #endif (or #else). */ |
382 | unsigned char warn_endif_labels; | |
383 | ||
68e65275 NB |
384 | /* Nonzero means warn about implicit sign changes owing to integer |
385 | promotions. */ | |
386 | unsigned char warn_num_sign_change; | |
387 | ||
e5b79219 RH |
388 | /* Zero means don't warn about __VA_ARGS__ usage in c89 pedantic mode. |
389 | Presumably the usage is protected by the appropriate #ifdef. */ | |
390 | unsigned char warn_variadic_macros; | |
391 | ||
c047ce93 SB |
392 | /* Nonzero means warn about builtin macros that are redefined or |
393 | explicitly undefined. */ | |
394 | unsigned char warn_builtin_macro_redefined; | |
395 | ||
31031edd JL |
396 | /* Nonzero means we should look for header.gcc files that remap file |
397 | names. */ | |
ae79697b | 398 | unsigned char remap; |
31031edd | 399 | |
eebedaa5 | 400 | /* Zero means dollar signs are punctuation. */ |
ae79697b | 401 | unsigned char dollars_in_ident; |
7f2935c7 | 402 | |
af15a2fe JM |
403 | /* Nonzero means UCNs are accepted in identifiers. */ |
404 | unsigned char extended_identifiers; | |
405 | ||
78b8811a HPN |
406 | /* True if we should warn about dollars in identifiers or numbers |
407 | for this translation unit. */ | |
408 | unsigned char warn_dollars; | |
409 | ||
6ac34fdc | 410 | /* Nonzero means warn if undefined identifiers are evaluated in an #if. */ |
ae79697b | 411 | unsigned char warn_undef; |
6ac34fdc | 412 | |
a69cbaac NB |
413 | /* Nonzero means warn of unused macros from the main file. */ |
414 | unsigned char warn_unused_macros; | |
415 | ||
31948547 | 416 | /* Nonzero for the 1999 C Standard, including corrigenda and amendments. */ |
ae79697b | 417 | unsigned char c99; |
31948547 | 418 | |
58551c23 NB |
419 | /* Nonzero if we are conforming to a specific C or C++ standard. */ |
420 | unsigned char std; | |
421 | ||
7f2935c7 | 422 | /* Nonzero means give all the error messages the ANSI standard requires. */ |
e3339d0f | 423 | unsigned char cpp_pedantic; |
7f2935c7 | 424 | |
3773a46b JM |
425 | /* Nonzero means we're looking at already preprocessed code, so don't |
426 | bother trying to do macro expansion and whatnot. */ | |
ae79697b | 427 | unsigned char preprocessed; |
847e697a TT |
428 | |
429 | /* Nonzero means we are going to emit debugging logs during | |
430 | preprocessing. */ | |
431 | unsigned char debug; | |
3773a46b | 432 | |
92582b75 TT |
433 | /* Nonzero means we are tracking locations of tokens involved in |
434 | macro expansion. 1 Means we track the location in degraded mode | |
435 | where we do not track locations of tokens resulting from the | |
436 | expansion of arguments of function-like macro. 2 Means we do | |
437 | track all macro expansions. This last option is the one that | |
438 | consumes the highest amount of memory. */ | |
439 | unsigned char track_macro_expansion; | |
440 | ||
644eddaa | 441 | /* Nonzero means handle C++ alternate operator names. */ |
be768055 | 442 | unsigned char operator_names; |
7e96d768 | 443 | |
3d8b2a98 ILT |
444 | /* Nonzero means warn about use of C++ alternate operator names. */ |
445 | unsigned char warn_cxx_operator_names; | |
446 | ||
004cb263 NB |
447 | /* True for traditional preprocessing. */ |
448 | unsigned char traditional; | |
449 | ||
01187df0 | 450 | /* Nonzero for C++ 2011 Standard user-defined literals. */ |
3ce4f9e4 ESR |
451 | unsigned char user_literals; |
452 | ||
7f5f5f98 OW |
453 | /* Nonzero means warn when a string or character literal is followed by a |
454 | ud-suffix which does not beging with an underscore. */ | |
455 | unsigned char warn_literal_suffix; | |
456 | ||
a4a0016d ESR |
457 | /* Nonzero means interpret imaginary, fixed-point, or other gnu extension |
458 | literal number suffixes as user-defined literal number suffixes. */ | |
459 | unsigned char ext_numeric_literals; | |
460 | ||
d3f4ff8b JM |
461 | /* Nonzero means extended identifiers allow the characters specified |
462 | in C11 and C++11. */ | |
463 | unsigned char c11_identifiers; | |
464 | ||
01187df0 JJ |
465 | /* Nonzero for C++ 2014 Standard binary constants. */ |
466 | unsigned char binary_constants; | |
467 | ||
7057e645 ESR |
468 | /* Nonzero for C++ 2014 Standard digit separators. */ |
469 | unsigned char digit_separators; | |
470 | ||
e6cc3a24 ZW |
471 | /* Holds the name of the target (execution) character set. */ |
472 | const char *narrow_charset; | |
473 | ||
474 | /* Holds the name of the target wide character set. */ | |
475 | const char *wide_charset; | |
476 | ||
cf551fba EC |
477 | /* Holds the name of the input character set. */ |
478 | const char *input_charset; | |
479 | ||
50668cf6 | 480 | /* The minimum permitted level of normalization before a warning |
1ef33fd4 MLI |
481 | is generated. See enum cpp_normalize_level. */ |
482 | int warn_normalize; | |
50668cf6 | 483 | |
783e2989 NB |
484 | /* True to warn about precompiled header files we couldn't use. */ |
485 | bool warn_invalid_pch; | |
486 | ||
487 | /* True if dependencies should be restored from a precompiled header. */ | |
488 | bool restore_pch_deps; | |
489 | ||
f3bede71 | 490 | /* True if warn about differences between C90 and C99. */ |
dd3ff077 | 491 | signed char cpp_warn_c90_c99_compat; |
f3bede71 | 492 | |
fe191308 JM |
493 | /* True if warn about differences between C++98 and C++11. */ |
494 | bool cpp_warn_cxx11_compat; | |
495 | ||
f4ff5a69 NB |
496 | /* Dependency generation. */ |
497 | struct | |
498 | { | |
499 | /* Style of header dependencies to generate. */ | |
72bb2c39 | 500 | enum cpp_deps_style style; |
f4ff5a69 NB |
501 | |
502 | /* Assume missing files are generated files. */ | |
503 | bool missing_files; | |
504 | ||
505 | /* Generate phony targets for each dependency apart from the first | |
506 | one. */ | |
507 | bool phony_targets; | |
182d89a3 NB |
508 | |
509 | /* If true, no dependency is generated on the main file. */ | |
510 | bool ignore_main_file; | |
74dc6a11 CD |
511 | |
512 | /* If true, intend to use the preprocessor output (e.g., for compilation) | |
513 | in addition to the dependency info. */ | |
514 | bool need_preprocessor_output; | |
f4ff5a69 NB |
515 | } deps; |
516 | ||
44a147ad NB |
517 | /* Target-specific features set by the front end or client. */ |
518 | ||
519 | /* Precision for target CPP arithmetic, target characters, target | |
520 | ints and target wide characters, respectively. */ | |
521 | size_t precision, char_precision, int_precision, wchar_precision; | |
522 | ||
23ff0223 NB |
523 | /* True means chars (wide chars) are unsigned. */ |
524 | bool unsigned_char, unsigned_wchar; | |
5279d739 | 525 | |
e6cc3a24 ZW |
526 | /* True if the most significant byte in a word has the lowest |
527 | address in memory. */ | |
528 | bool bytes_big_endian; | |
783e2989 | 529 | |
5279d739 ZW |
530 | /* Nonzero means __STDC__ should have the value 0 in system headers. */ |
531 | unsigned char stdc_0_in_system_headers; | |
21b11495 | 532 | |
ccfc4c91 OW |
533 | /* True disables tokenization outside of preprocessing directives. */ |
534 | bool directives_only; | |
5dc99c46 SB |
535 | |
536 | /* True enables canonicalization of system header file paths. */ | |
537 | bool canonical_system_headers; | |
ae79697b | 538 | }; |
7f2935c7 | 539 | |
94d1613b MS |
540 | /* Callback for header lookup for HEADER, which is the name of a |
541 | source file. It is used as a method of last resort to find headers | |
542 | that are not otherwise found during the normal include processing. | |
543 | The return value is the malloced name of a header to try and open, | |
544 | if any, or NULL otherwise. This callback is called only if the | |
545 | header is otherwise unfound. */ | |
e3c287c9 | 546 | typedef const char *(*missing_header_cb)(cpp_reader *, const char *header, cpp_dir **); |
94d1613b | 547 | |
48c4721e | 548 | /* Call backs to cpplib client. */ |
7e96d768 NB |
549 | struct cpp_callbacks |
550 | { | |
97293897 | 551 | /* Called when a new line of preprocessed output is started. */ |
6cf87ca4 | 552 | void (*line_change) (cpp_reader *, const cpp_token *, int); |
4dc299fb PB |
553 | |
554 | /* Called when switching to/from a new file. | |
555 | The line_map is for the new file. It is NULL if there is no new file. | |
556 | (In C this happens when done with <built-in>+<command line> and also | |
557 | when done with a main file.) This can be used for resource cleanup. */ | |
0e50b624 | 558 | void (*file_change) (cpp_reader *, const line_map_ordinary *); |
4dc299fb | 559 | |
b20d9f0c | 560 | void (*dir_change) (cpp_reader *, const char *); |
d0a9fbe1 | 561 | void (*include) (cpp_reader *, source_location, const unsigned char *, |
cbc43ae0 | 562 | const char *, int, const cpp_token **); |
d0a9fbe1 DS |
563 | void (*define) (cpp_reader *, source_location, cpp_hashnode *); |
564 | void (*undef) (cpp_reader *, source_location, cpp_hashnode *); | |
565 | void (*ident) (cpp_reader *, source_location, const cpp_string *); | |
566 | void (*def_pragma) (cpp_reader *, source_location); | |
6cf87ca4 ZW |
567 | int (*valid_pch) (cpp_reader *, const char *, int); |
568 | void (*read_pch) (cpp_reader *, const char *, int, const char *); | |
94d1613b | 569 | missing_header_cb missing_header; |
178b58b5 | 570 | |
5950c3c9 BE |
571 | /* Context-sensitive macro support. Returns macro (if any) that should |
572 | be expanded. */ | |
573 | cpp_hashnode * (*macro_to_expand) (cpp_reader *, const cpp_token *); | |
574 | ||
148e4216 JM |
575 | /* Called to emit a diagnostic. This callback receives the |
576 | translated message. */ | |
8a645150 | 577 | bool (*error) (cpp_reader *, int, int, rich_location *, |
148e4216 | 578 | const char *, va_list *) |
8a645150 | 579 | ATTRIBUTE_FPTR_PRINTF(5,0); |
93d45d9e JM |
580 | |
581 | /* Callbacks for when a macro is expanded, or tested (whether | |
582 | defined or not at the time) in #ifdef, #ifndef or "defined". */ | |
d0a9fbe1 DS |
583 | void (*used_define) (cpp_reader *, source_location, cpp_hashnode *); |
584 | void (*used_undef) (cpp_reader *, source_location, cpp_hashnode *); | |
93d45d9e JM |
585 | /* Called before #define and #undef or other macro definition |
586 | changes are processed. */ | |
587 | void (*before_define) (cpp_reader *); | |
3de8a540 AC |
588 | /* Called whenever a macro is expanded or tested. |
589 | Second argument is the location of the start of the current expansion. */ | |
590 | void (*used) (cpp_reader *, source_location, cpp_hashnode *); | |
8e680db5 | 591 | |
42fd12b1 ESR |
592 | /* Callback to identify whether an attribute exists. */ |
593 | int (*has_attribute) (cpp_reader *); | |
594 | ||
8e680db5 JJ |
595 | /* Callback that can change a user builtin into normal macro. */ |
596 | bool (*user_builtin_macro) (cpp_reader *, cpp_hashnode *); | |
15c98b2e ES |
597 | |
598 | /* Callback to parse SOURCE_DATE_EPOCH from environment. */ | |
599 | time_t (*get_source_date_epoch) (cpp_reader *); | |
cb18fd07 DM |
600 | |
601 | /* Callback for providing suggestions for misspelled directives. */ | |
602 | const char *(*get_suggestion) (cpp_reader *, const char *, const char *const *); | |
7e96d768 NB |
603 | }; |
604 | ||
0c539b47 DR |
605 | #ifdef VMS |
606 | #define INO_T_CPP ino_t ino[3] | |
607 | #else | |
608 | #define INO_T_CPP ino_t ino | |
609 | #endif | |
610 | ||
5793b276 | 611 | /* Chain of directories to look for include files in. */ |
8f9b4009 | 612 | struct cpp_dir |
5793b276 NB |
613 | { |
614 | /* NULL-terminated singly-linked list. */ | |
8f9b4009 | 615 | struct cpp_dir *next; |
5793b276 | 616 | |
8f9b4009 | 617 | /* NAME of the directory, NUL-terminated. */ |
5793b276 NB |
618 | char *name; |
619 | unsigned int len; | |
620 | ||
621 | /* One if a system header, two if a system header that has extern | |
622 | "C" guards for C++. */ | |
623 | unsigned char sysp; | |
624 | ||
8f5929e1 JJ |
625 | /* Is this a user-supplied directory? */ |
626 | bool user_supplied_p; | |
627 | ||
628 | /* The canonicalized NAME as determined by lrealpath. This field | |
629 | is only used by hosts that lack reliable inode numbers. */ | |
630 | char *canonical_name; | |
631 | ||
8f9b4009 NB |
632 | /* Mapping of file names for this directory for MS-DOS and related |
633 | platforms. A NULL-terminated array of (from, to) pairs. */ | |
634 | const char **name_map; | |
cf551fba | 635 | |
94d1613b MS |
636 | /* Routine to construct pathname, given the search path name and the |
637 | HEADER we are trying to find, return a constructed pathname to | |
638 | try and open. If this is NULL, the constructed pathname is as | |
639 | constructed by append_file_to_dir. */ | |
640 | char *(*construct) (const char *header, cpp_dir *dir); | |
641 | ||
5793b276 NB |
642 | /* The C front end uses these to recognize duplicated |
643 | directories in the search path. */ | |
0c539b47 | 644 | INO_T_CPP; |
5793b276 NB |
645 | dev_t dev; |
646 | }; | |
647 | ||
93c80368 NB |
648 | /* The structure of a node in the hash table. The hash table has |
649 | entries for all identifiers: either macros defined by #define | |
650 | commands (type NT_MACRO), assertions created with #assert | |
651 | (NT_ASSERTION), or neither of the above (NT_VOID). Builtin macros | |
95bd1dd7 | 652 | like __LINE__ are flagged NODE_BUILTIN. Poisoned identifiers are |
93c80368 NB |
653 | flagged NODE_POISONED. NODE_OPERATOR (C++ only) indicates an |
654 | identifier that behaves like an operator such as "xor". | |
655 | NODE_DIAGNOSTIC is for speed in lex_token: it indicates a | |
656 | diagnostic may be required for this node. Currently this only | |
3d8b2a98 ILT |
657 | applies to __VA_ARGS__, poisoned identifiers, and -Wc++-compat |
658 | warnings about NODE_OPERATOR. */ | |
93c80368 NB |
659 | |
660 | /* Hash node flags. */ | |
661 | #define NODE_OPERATOR (1 << 0) /* C++ named operator. */ | |
662 | #define NODE_POISONED (1 << 1) /* Poisoned identifier. */ | |
663 | #define NODE_BUILTIN (1 << 2) /* Builtin macro. */ | |
664 | #define NODE_DIAGNOSTIC (1 << 3) /* Possible diagnostic when lexed. */ | |
618cdda7 | 665 | #define NODE_WARN (1 << 4) /* Warn if redefined or undefined. */ |
644eddaa | 666 | #define NODE_DISABLED (1 << 5) /* A disabled macro. */ |
71c0e7fc | 667 | #define NODE_MACRO_ARG (1 << 6) /* Used during #define processing. */ |
93d45d9e | 668 | #define NODE_USED (1 << 7) /* Dumped with -dU. */ |
5950c3c9 | 669 | #define NODE_CONDITIONAL (1 << 8) /* Conditional macro */ |
3d8b2a98 | 670 | #define NODE_WARN_OPERATOR (1 << 9) /* Warn about C++ named operator. */ |
93c80368 NB |
671 | |
672 | /* Different flavors of hash node. */ | |
f8f769ea ZW |
673 | enum node_type |
674 | { | |
93c80368 NB |
675 | NT_VOID = 0, /* No definition yet. */ |
676 | NT_MACRO, /* A macro of some form. */ | |
677 | NT_ASSERTION /* Predicate for #assert. */ | |
678 | }; | |
679 | ||
644eddaa NB |
680 | /* Different flavors of builtin macro. _Pragma is an operator, but we |
681 | handle it with the builtin code for efficiency reasons. */ | |
7e5487a2 | 682 | enum cpp_builtin_type |
93c80368 NB |
683 | { |
684 | BT_SPECLINE = 0, /* `__LINE__' */ | |
685 | BT_DATE, /* `__DATE__' */ | |
686 | BT_FILE, /* `__FILE__' */ | |
687 | BT_BASE_FILE, /* `__BASE_FILE__' */ | |
688 | BT_INCLUDE_LEVEL, /* `__INCLUDE_LEVEL__' */ | |
689 | BT_TIME, /* `__TIME__' */ | |
644eddaa | 690 | BT_STDC, /* `__STDC__' */ |
be8ac3e2 | 691 | BT_PRAGMA, /* `_Pragma' operator */ |
a702045a | 692 | BT_TIMESTAMP, /* `__TIMESTAMP__' */ |
8e680db5 | 693 | BT_COUNTER, /* `__COUNTER__' */ |
1f8d3e84 | 694 | BT_HAS_ATTRIBUTE, /* `__has_attribute__(x)' */ |
8e680db5 JJ |
695 | BT_FIRST_USER, /* User defined builtin macros. */ |
696 | BT_LAST_USER = BT_FIRST_USER + 31 | |
f8f769ea ZW |
697 | }; |
698 | ||
2a967f3d NB |
699 | #define CPP_HASHNODE(HNODE) ((cpp_hashnode *) (HNODE)) |
700 | #define HT_NODE(NODE) ((ht_identifier *) (NODE)) | |
701 | #define NODE_LEN(NODE) HT_LEN (&(NODE)->ident) | |
702 | #define NODE_NAME(NODE) HT_STR (&(NODE)->ident) | |
f8f769ea | 703 | |
d8044160 GK |
704 | /* Specify which field, if any, of the union is used. */ |
705 | ||
706 | enum { | |
707 | NTV_MACRO, | |
708 | NTV_ANSWER, | |
709 | NTV_BUILTIN, | |
710 | NTV_ARGUMENT, | |
711 | NTV_NONE | |
712 | }; | |
713 | ||
714 | #define CPP_HASHNODE_VALUE_IDX(HNODE) \ | |
715 | ((HNODE.flags & NODE_MACRO_ARG) ? NTV_ARGUMENT \ | |
716 | : HNODE.type == NT_MACRO ? ((HNODE.flags & NODE_BUILTIN) \ | |
717 | ? NTV_BUILTIN : NTV_MACRO) \ | |
718 | : HNODE.type == NT_ASSERTION ? NTV_ANSWER \ | |
719 | : NTV_NONE) | |
720 | ||
2a967f3d NB |
721 | /* The common part of an identifier node shared amongst all 3 C front |
722 | ends. Also used to store CPP identifiers, which are a superset of | |
723 | identifiers in the grammatical sense. */ | |
c3f829c1 | 724 | |
d1b38208 | 725 | union GTY(()) _cpp_hashnode_value { |
c3f829c1 GDR |
726 | /* If a macro. */ |
727 | cpp_macro * GTY((tag ("NTV_MACRO"))) macro; | |
728 | /* Answers to an assertion. */ | |
729 | struct answer * GTY ((tag ("NTV_ANSWER"))) answers; | |
730 | /* Code for a builtin macro. */ | |
7e5487a2 | 731 | enum cpp_builtin_type GTY ((tag ("NTV_BUILTIN"))) builtin; |
c3f829c1 GDR |
732 | /* Macro argument index. */ |
733 | unsigned short GTY ((tag ("NTV_ARGUMENT"))) arg_index; | |
734 | }; | |
735 | ||
d1b38208 | 736 | struct GTY(()) cpp_hashnode { |
2a967f3d | 737 | struct ht_identifier ident; |
4977bab6 | 738 | unsigned int is_directive : 1; |
cf551fba | 739 | unsigned int directive_index : 7; /* If is_directive, |
4977bab6 | 740 | then index into directive table. |
71c0e7fc | 741 | Otherwise, a NODE_OPERATOR. */ |
2a967f3d | 742 | unsigned char rid_code; /* Rid code - for front ends. */ |
3d8b2a98 ILT |
743 | ENUM_BITFIELD(node_type) type : 6; /* CPP node type. */ |
744 | unsigned int flags : 10; /* CPP flags. */ | |
f8f769ea | 745 | |
c3f829c1 | 746 | union _cpp_hashnode_value GTY ((desc ("CPP_HASHNODE_VALUE_IDX (%1)"))) value; |
f8f769ea ZW |
747 | }; |
748 | ||
88fa5555 DM |
749 | /* A class for iterating through the source locations within a |
750 | string token (before escapes are interpreted, and before | |
751 | concatenation). */ | |
752 | ||
753 | class cpp_string_location_reader { | |
754 | public: | |
755 | cpp_string_location_reader (source_location src_loc, | |
756 | line_maps *line_table); | |
757 | ||
758 | source_range get_next (); | |
759 | ||
760 | private: | |
761 | source_location m_loc; | |
762 | int m_offset_per_column; | |
763 | line_maps *m_line_table; | |
764 | }; | |
765 | ||
766 | /* A class for storing the source ranges of all of the characters within | |
767 | a string literal, after escapes are interpreted, and after | |
768 | concatenation. | |
769 | ||
770 | This is not GTY-marked, as instances are intended to be temporary. */ | |
771 | ||
772 | class cpp_substring_ranges | |
773 | { | |
774 | public: | |
775 | cpp_substring_ranges (); | |
776 | ~cpp_substring_ranges (); | |
777 | ||
778 | int get_num_ranges () const { return m_num_ranges; } | |
779 | source_range get_range (int idx) const | |
780 | { | |
781 | linemap_assert (idx < m_num_ranges); | |
782 | return m_ranges[idx]; | |
783 | } | |
784 | ||
785 | void add_range (source_range range); | |
786 | void add_n_ranges (int num, cpp_string_location_reader &loc_reader); | |
787 | ||
788 | private: | |
789 | source_range *m_ranges; | |
790 | int m_num_ranges; | |
791 | int m_alloc_ranges; | |
792 | }; | |
793 | ||
b4e46cea PB |
794 | /* Call this first to get a handle to pass to other functions. |
795 | ||
796 | If you want cpplib to manage its own hashtable, pass in a NULL | |
797 | pointer. Otherwise you should pass in an initialized hash table | |
798 | that cpplib will share; this technique is used by the C front | |
799 | ends. */ | |
50f59cd7 PB |
800 | extern cpp_reader *cpp_create_reader (enum c_lang, struct ht *, |
801 | struct line_maps *); | |
400023a3 | 802 | |
5ffeb913 TT |
803 | /* Reset the cpp_reader's line_map. This is only used after reading a |
804 | PCH file. */ | |
805 | extern void cpp_set_line_map (cpp_reader *, struct line_maps *); | |
806 | ||
f749a36b NB |
807 | /* Call this to change the selected language standard (e.g. because of |
808 | command line options). */ | |
6cf87ca4 | 809 | extern void cpp_set_lang (cpp_reader *, enum c_lang); |
f749a36b | 810 | |
5793b276 | 811 | /* Set the include paths. */ |
8f9b4009 | 812 | extern void cpp_set_include_chains (cpp_reader *, cpp_dir *, cpp_dir *, int); |
5793b276 | 813 | |
c6e83800 ZW |
814 | /* Call these to get pointers to the options, callback, and deps |
815 | structures for a given reader. These pointers are good until you | |
816 | call cpp_finish on that reader. You can either edit the callbacks | |
7e96d768 NB |
817 | through the pointer returned from cpp_get_callbacks, or set them |
818 | with cpp_set_callbacks. */ | |
6cf87ca4 | 819 | extern cpp_options *cpp_get_options (cpp_reader *); |
6cf87ca4 ZW |
820 | extern cpp_callbacks *cpp_get_callbacks (cpp_reader *); |
821 | extern void cpp_set_callbacks (cpp_reader *, cpp_callbacks *); | |
c6e83800 | 822 | extern struct deps *cpp_get_deps (cpp_reader *); |
7e96d768 | 823 | |
8e9ea4d7 PB |
824 | /* This function reads the file, but does not start preprocessing. It |
825 | returns the name of the original file; this is the same as the | |
826 | input file, except for preprocessed input. This will generate at | |
827 | least one file change callback, and possibly a line change callback | |
9ac97460 | 828 | too. If there was an error opening the file, it returns NULL. */ |
8e9ea4d7 | 829 | extern const char *cpp_read_main_file (cpp_reader *, const char *); |
f5e99456 | 830 | |
ccfc4c91 OW |
831 | /* Set up built-ins with special behavior. Use cpp_init_builtins() |
832 | instead unless your know what you are doing. */ | |
833 | extern void cpp_init_special_builtins (cpp_reader *); | |
834 | ||
c1bad961 | 835 | /* Set up built-ins like __FILE__. */ |
6cf87ca4 | 836 | extern void cpp_init_builtins (cpp_reader *, int); |
f5e99456 | 837 | |
4169c321 | 838 | /* This is called after options have been parsed, and partially |
59e4e217 | 839 | processed. */ |
4169c321 PB |
840 | extern void cpp_post_options (cpp_reader *); |
841 | ||
e6cc3a24 ZW |
842 | /* Set up translation to the target character set. */ |
843 | extern void cpp_init_iconv (cpp_reader *); | |
844 | ||
f4ff5a69 NB |
845 | /* Call this to finish preprocessing. If you requested dependency |
846 | generation, pass an open stream to write the information to, | |
148e4216 JM |
847 | otherwise NULL. It is your responsibility to close the stream. */ |
848 | extern void cpp_finish (cpp_reader *, FILE *deps_stream); | |
f4ff5a69 | 849 | |
f5e99456 | 850 | /* Call this to release the handle at the end of preprocessing. Any |
148e4216 | 851 | use of the handle after this function returns is invalid. */ |
6cf87ca4 | 852 | extern void cpp_destroy (cpp_reader *); |
f5e99456 | 853 | |
6cf87ca4 ZW |
854 | extern unsigned int cpp_token_len (const cpp_token *); |
855 | extern unsigned char *cpp_token_as_text (cpp_reader *, const cpp_token *); | |
856 | extern unsigned char *cpp_spell_token (cpp_reader *, const cpp_token *, | |
47e20491 | 857 | unsigned char *, bool); |
6cf87ca4 | 858 | extern void cpp_register_pragma (cpp_reader *, const char *, const char *, |
b5b3e36a | 859 | void (*) (cpp_reader *), bool); |
bc4071dd RH |
860 | extern void cpp_register_deferred_pragma (cpp_reader *, const char *, |
861 | const char *, unsigned, bool, bool); | |
6cf87ca4 ZW |
862 | extern int cpp_avoid_paste (cpp_reader *, const cpp_token *, |
863 | const cpp_token *); | |
864 | extern const cpp_token *cpp_get_token (cpp_reader *); | |
5ffeb913 TT |
865 | extern const cpp_token *cpp_get_token_with_location (cpp_reader *, |
866 | source_location *); | |
6b366948 | 867 | extern bool cpp_fun_like_macro_p (cpp_hashnode *); |
6cf87ca4 | 868 | extern const unsigned char *cpp_macro_definition (cpp_reader *, |
8e680db5 | 869 | cpp_hashnode *); |
6cf87ca4 | 870 | extern void _cpp_backup_tokens (cpp_reader *, unsigned int); |
5950c3c9 | 871 | extern const cpp_token *cpp_peek_token (cpp_reader *, int); |
041c3194 | 872 | |
2c6e3f55 | 873 | /* Evaluate a CPP_*CHAR* token. */ |
6cf87ca4 ZW |
874 | extern cppchar_t cpp_interpret_charconst (cpp_reader *, const cpp_token *, |
875 | unsigned int *, int *); | |
2c6e3f55 | 876 | /* Evaluate a vector of CPP_*STRING* tokens. */ |
e6cc3a24 ZW |
877 | extern bool cpp_interpret_string (cpp_reader *, |
878 | const cpp_string *, size_t, | |
b6baa67d | 879 | cpp_string *, enum cpp_ttype); |
88fa5555 DM |
880 | extern const char *cpp_interpret_string_ranges (cpp_reader *pfile, |
881 | const cpp_string *from, | |
882 | cpp_string_location_reader *, | |
883 | size_t count, | |
884 | cpp_substring_ranges *out, | |
885 | enum cpp_ttype type); | |
423e95e2 EC |
886 | extern bool cpp_interpret_string_notranslate (cpp_reader *, |
887 | const cpp_string *, size_t, | |
b6baa67d | 888 | cpp_string *, enum cpp_ttype); |
c8a96070 | 889 | |
c5ff069d ZW |
890 | /* Convert a host character constant to the execution character set. */ |
891 | extern cppchar_t cpp_host_to_exec_charset (cpp_reader *, cppchar_t); | |
892 | ||
c1bad961 | 893 | /* Used to register macros and assertions, perhaps from the command line. |
3d90d290 | 894 | The text is the same as the command line argument. */ |
6cf87ca4 | 895 | extern void cpp_define (cpp_reader *, const char *); |
28f68625 DF |
896 | extern void cpp_define_formatted (cpp_reader *pfile, |
897 | const char *fmt, ...) ATTRIBUTE_PRINTF_2; | |
6cf87ca4 ZW |
898 | extern void cpp_assert (cpp_reader *, const char *); |
899 | extern void cpp_undef (cpp_reader *, const char *); | |
900 | extern void cpp_unassert (cpp_reader *, const char *); | |
7f2935c7 | 901 | |
d1bd0ded GK |
902 | /* Undefine all macros and assertions. */ |
903 | extern void cpp_undef_all (cpp_reader *); | |
904 | ||
6cf87ca4 | 905 | extern cpp_buffer *cpp_push_buffer (cpp_reader *, const unsigned char *, |
4dc299fb | 906 | size_t, int); |
6cf87ca4 | 907 | extern int cpp_defined (cpp_reader *, const unsigned char *, int); |
c5a04734 | 908 | |
cd7ab83f NB |
909 | /* A preprocessing number. Code assumes that any unused high bits of |
910 | the double integer are set to zero. */ | |
54da09ee | 911 | |
edf6ddf6 | 912 | /* This type has to be equal to unsigned HOST_WIDE_INT, see |
54da09ee | 913 | gcc/c-family/c-lex.c. */ |
edf6ddf6 | 914 | typedef uint64_t cpp_num_part; |
cd7ab83f NB |
915 | typedef struct cpp_num cpp_num; |
916 | struct cpp_num | |
917 | { | |
918 | cpp_num_part high; | |
919 | cpp_num_part low; | |
920 | bool unsignedp; /* True if value should be treated as unsigned. */ | |
921 | bool overflow; /* True if the most recent calculation overflowed. */ | |
922 | }; | |
923 | ||
924 | /* cpplib provides two interfaces for interpretation of preprocessing | |
925 | numbers. | |
926 | ||
927 | cpp_classify_number categorizes numeric constants according to | |
928 | their field (integer, floating point, or invalid), radix (decimal, | |
929 | octal, hexadecimal), and type suffixes. */ | |
930 | ||
931 | #define CPP_N_CATEGORY 0x000F | |
932 | #define CPP_N_INVALID 0x0000 | |
933 | #define CPP_N_INTEGER 0x0001 | |
934 | #define CPP_N_FLOATING 0x0002 | |
935 | ||
936 | #define CPP_N_WIDTH 0x00F0 | |
8204be6c | 937 | #define CPP_N_SMALL 0x0010 /* int, float, short _Fract/Accum */ |
ac6b1c67 CF |
938 | #define CPP_N_MEDIUM 0x0020 /* long, double, long _Fract/_Accum. */ |
939 | #define CPP_N_LARGE 0x0040 /* long long, long double, | |
940 | long long _Fract/Accum. */ | |
cd7ab83f | 941 | |
c77cd3d1 UB |
942 | #define CPP_N_WIDTH_MD 0xF0000 /* machine defined. */ |
943 | #define CPP_N_MD_W 0x10000 | |
944 | #define CPP_N_MD_Q 0x20000 | |
945 | ||
cd7ab83f NB |
946 | #define CPP_N_RADIX 0x0F00 |
947 | #define CPP_N_DECIMAL 0x0100 | |
948 | #define CPP_N_HEX 0x0200 | |
949 | #define CPP_N_OCTAL 0x0400 | |
f7fd775f | 950 | #define CPP_N_BINARY 0x0800 |
cd7ab83f NB |
951 | |
952 | #define CPP_N_UNSIGNED 0x1000 /* Properties. */ | |
953 | #define CPP_N_IMAGINARY 0x2000 | |
ad6ed77e | 954 | #define CPP_N_DFLOAT 0x4000 |
839a3b8a | 955 | #define CPP_N_DEFAULT 0x8000 |
cd7ab83f | 956 | |
ac6b1c67 CF |
957 | #define CPP_N_FRACT 0x100000 /* Fract types. */ |
958 | #define CPP_N_ACCUM 0x200000 /* Accum types. */ | |
c65699ef JM |
959 | #define CPP_N_FLOATN 0x400000 /* _FloatN types. */ |
960 | #define CPP_N_FLOATNX 0x800000 /* _FloatNx types. */ | |
ac6b1c67 | 961 | |
3ce4f9e4 ESR |
962 | #define CPP_N_USERDEF 0x1000000 /* C++0x user-defined literal. */ |
963 | ||
c65699ef JM |
964 | #define CPP_N_WIDTH_FLOATN_NX 0xF0000000 /* _FloatN / _FloatNx value |
965 | of N, divided by 16. */ | |
966 | #define CPP_FLOATN_SHIFT 24 | |
967 | #define CPP_FLOATN_MAX 0xF0 | |
968 | ||
cd7ab83f NB |
969 | /* Classify a CPP_NUMBER token. The return value is a combination of |
970 | the flags from the above sets. */ | |
3ce4f9e4 | 971 | extern unsigned cpp_classify_number (cpp_reader *, const cpp_token *, |
0b2c4be5 | 972 | const char **, source_location); |
3ce4f9e4 ESR |
973 | |
974 | /* Return the classification flags for a float suffix. */ | |
a4a0016d ESR |
975 | extern unsigned int cpp_interpret_float_suffix (cpp_reader *, const char *, |
976 | size_t); | |
3ce4f9e4 ESR |
977 | |
978 | /* Return the classification flags for an int suffix. */ | |
a4a0016d ESR |
979 | extern unsigned int cpp_interpret_int_suffix (cpp_reader *, const char *, |
980 | size_t); | |
cd7ab83f NB |
981 | |
982 | /* Evaluate a token classified as category CPP_N_INTEGER. */ | |
6cf87ca4 | 983 | extern cpp_num cpp_interpret_integer (cpp_reader *, const cpp_token *, |
3ce4f9e4 | 984 | unsigned int); |
cd7ab83f | 985 | |
ceeedfc1 NB |
986 | /* Sign extend a number, with PRECISION significant bits and all |
987 | others assumed clear, to fill out a cpp_num structure. */ | |
6cf87ca4 | 988 | cpp_num cpp_num_sign_extend (cpp_num, size_t); |
ceeedfc1 | 989 | |
95bd1dd7 | 990 | /* Diagnostic levels. To get a diagnostic without associating a |
ebef4e8c NB |
991 | position in the translation unit with it, use cpp_error_with_line |
992 | with a line number of zero. */ | |
993 | ||
87cf0651 SB |
994 | enum { |
995 | /* Warning, an error with -Werror. */ | |
996 | CPP_DL_WARNING = 0, | |
997 | /* Same as CPP_DL_WARNING, except it is not suppressed in system headers. */ | |
998 | CPP_DL_WARNING_SYSHDR, | |
999 | /* Warning, an error with -pedantic-errors or -Werror. */ | |
1000 | CPP_DL_PEDWARN, | |
1001 | /* An error. */ | |
1002 | CPP_DL_ERROR, | |
1003 | /* An internal consistency check failed. Prints "internal error: ", | |
1004 | otherwise the same as CPP_DL_ERROR. */ | |
1005 | CPP_DL_ICE, | |
1006 | /* An informative note following a warning. */ | |
1007 | CPP_DL_NOTE, | |
1008 | /* A fatal error. */ | |
1009 | CPP_DL_FATAL | |
1010 | }; | |
1011 | ||
1012 | /* Warning reason codes. Use a reason code of zero for unclassified warnings | |
1013 | and errors that are not warnings. */ | |
1014 | enum { | |
1015 | CPP_W_NONE = 0, | |
1016 | CPP_W_DEPRECATED, | |
1017 | CPP_W_COMMENTS, | |
1018 | CPP_W_MISSING_INCLUDE_DIRS, | |
1019 | CPP_W_TRIGRAPHS, | |
1020 | CPP_W_MULTICHAR, | |
1021 | CPP_W_TRADITIONAL, | |
1022 | CPP_W_LONG_LONG, | |
1023 | CPP_W_ENDIF_LABELS, | |
1024 | CPP_W_NUM_SIGN_CHANGE, | |
1025 | CPP_W_VARIADIC_MACROS, | |
1026 | CPP_W_BUILTIN_MACRO_REDEFINED, | |
1027 | CPP_W_DOLLARS, | |
1028 | CPP_W_UNDEF, | |
1029 | CPP_W_UNUSED_MACROS, | |
1030 | CPP_W_CXX_OPERATOR_NAMES, | |
1031 | CPP_W_NORMALIZE, | |
1032 | CPP_W_INVALID_PCH, | |
7f5f5f98 | 1033 | CPP_W_WARNING_DIRECTIVE, |
e8ff5196 | 1034 | CPP_W_LITERAL_SUFFIX, |
2b71f4a4 MLI |
1035 | CPP_W_DATE_TIME, |
1036 | CPP_W_PEDANTIC, | |
fe191308 JM |
1037 | CPP_W_C90_C99_COMPAT, |
1038 | CPP_W_CXX11_COMPAT | |
87cf0651 | 1039 | }; |
ebef4e8c | 1040 | |
ebef4e8c | 1041 | /* Output a diagnostic of some kind. */ |
148e4216 | 1042 | extern bool cpp_error (cpp_reader *, int, const char *msgid, ...) |
ebef4e8c | 1043 | ATTRIBUTE_PRINTF_3; |
87cf0651 SB |
1044 | extern bool cpp_warning (cpp_reader *, int, const char *msgid, ...) |
1045 | ATTRIBUTE_PRINTF_3; | |
1046 | extern bool cpp_pedwarning (cpp_reader *, int, const char *msgid, ...) | |
1047 | ATTRIBUTE_PRINTF_3; | |
1048 | extern bool cpp_warning_syshdr (cpp_reader *, int, const char *msgid, ...) | |
1049 | ATTRIBUTE_PRINTF_3; | |
ebef4e8c | 1050 | |
6cf87ca4 | 1051 | /* Output a diagnostic with "MSGID: " preceding the |
ebef4e8c | 1052 | error string of errno. No location is printed. */ |
148e4216 | 1053 | extern bool cpp_errno (cpp_reader *, int, const char *msgid); |
46ce03de JJ |
1054 | /* Similarly, but with "FILENAME: " instead of "MSGID: ", where |
1055 | the filename is not localized. */ | |
ac81cf0b DM |
1056 | extern bool cpp_errno_filename (cpp_reader *, int, const char *filename, |
1057 | source_location loc); | |
ebef4e8c NB |
1058 | |
1059 | /* Same as cpp_error, except additionally specifies a position as a | |
1060 | (translation unit) physical line and physical column. If the line is | |
1061 | zero, then no location is printed. */ | |
87cf0651 SB |
1062 | extern bool cpp_error_with_line (cpp_reader *, int, source_location, |
1063 | unsigned, const char *msgid, ...) | |
1064 | ATTRIBUTE_PRINTF_5; | |
1065 | extern bool cpp_warning_with_line (cpp_reader *, int, source_location, | |
1066 | unsigned, const char *msgid, ...) | |
1067 | ATTRIBUTE_PRINTF_5; | |
1068 | extern bool cpp_pedwarning_with_line (cpp_reader *, int, source_location, | |
1069 | unsigned, const char *msgid, ...) | |
1070 | ATTRIBUTE_PRINTF_5; | |
1071 | extern bool cpp_warning_with_line_syshdr (cpp_reader *, int, source_location, | |
1072 | unsigned, const char *msgid, ...) | |
1073 | ATTRIBUTE_PRINTF_5; | |
f2d5f0cc | 1074 | |
ac81cf0b DM |
1075 | extern bool cpp_error_at (cpp_reader * pfile, int level, |
1076 | source_location src_loc, const char *msgid, ...) | |
1077 | ATTRIBUTE_PRINTF_4; | |
1078 | ||
cb18fd07 DM |
1079 | extern bool cpp_error_at_richloc (cpp_reader * pfile, int level, |
1080 | rich_location *richloc, const char *msgid, | |
1081 | ...) | |
1082 | ATTRIBUTE_PRINTF_4; | |
1083 | ||
28f68625 | 1084 | /* In lex.c */ |
6cf87ca4 ZW |
1085 | extern int cpp_ideq (const cpp_token *, const char *); |
1086 | extern void cpp_output_line (cpp_reader *, FILE *); | |
5d6342eb TT |
1087 | extern unsigned char *cpp_output_line_to_string (cpp_reader *, |
1088 | const unsigned char *); | |
6cf87ca4 | 1089 | extern void cpp_output_token (const cpp_token *, FILE *); |
cfc93532 | 1090 | extern const char *cpp_type2name (enum cpp_ttype, unsigned char flags); |
4268e8bb NB |
1091 | /* Returns the value of an escape sequence, truncated to the correct |
1092 | target precision. PSTR points to the input pointer, which is just | |
1093 | after the backslash. LIMIT is how much text we have. WIDE is true | |
1094 | if the escape sequence is part of a wide character constant or | |
1095 | string literal. Handles all relevant diagnostics. */ | |
6cf87ca4 ZW |
1096 | extern cppchar_t cpp_parse_escape (cpp_reader *, const unsigned char ** pstr, |
1097 | const unsigned char *limit, int wide); | |
1368ee70 | 1098 | |
631d0d36 MG |
1099 | /* Structure used to hold a comment block at a given location in the |
1100 | source code. */ | |
1101 | ||
1102 | typedef struct | |
1103 | { | |
1104 | /* Text of the comment including the terminators. */ | |
1105 | char *comment; | |
1106 | ||
1107 | /* source location for the given comment. */ | |
1108 | source_location sloc; | |
1109 | } cpp_comment; | |
1110 | ||
1111 | /* Structure holding all comments for a given cpp_reader. */ | |
1112 | ||
1113 | typedef struct | |
1114 | { | |
1115 | /* table of comment entries. */ | |
1116 | cpp_comment *entries; | |
1117 | ||
1118 | /* number of actual entries entered in the table. */ | |
1119 | int count; | |
1120 | ||
1121 | /* number of entries allocated currently. */ | |
1122 | int allocated; | |
1123 | } cpp_comment_table; | |
1124 | ||
1125 | /* Returns the table of comments encountered by the preprocessor. This | |
1126 | table is only populated when pfile->state.save_comments is true. */ | |
1127 | extern cpp_comment_table *cpp_get_comments (cpp_reader *); | |
1128 | ||
28f68625 | 1129 | /* In hash.c */ |
2a967f3d NB |
1130 | |
1131 | /* Lookup an identifier in the hashtable. Puts the identifier in the | |
1132 | table if it is not already there. */ | |
6cf87ca4 ZW |
1133 | extern cpp_hashnode *cpp_lookup (cpp_reader *, const unsigned char *, |
1134 | unsigned int); | |
2a967f3d | 1135 | |
6cf87ca4 ZW |
1136 | typedef int (*cpp_cb) (cpp_reader *, cpp_hashnode *, void *); |
1137 | extern void cpp_forall_identifiers (cpp_reader *, cpp_cb, void *); | |
926c5678 | 1138 | |
28f68625 | 1139 | /* In macro.c */ |
6cf87ca4 ZW |
1140 | extern void cpp_scan_nooutput (cpp_reader *); |
1141 | extern int cpp_sys_macro_p (cpp_reader *); | |
1142 | extern unsigned char *cpp_quote_string (unsigned char *, const unsigned char *, | |
1143 | unsigned int); | |
6de1e2a9 | 1144 | |
28f68625 | 1145 | /* In files.c */ |
8f9b4009 | 1146 | extern bool cpp_included (cpp_reader *, const char *); |
f1e20710 | 1147 | extern bool cpp_included_before (cpp_reader *, const char *, source_location); |
6cf87ca4 | 1148 | extern void cpp_make_system_header (cpp_reader *, int, int); |
6cf87ca4 | 1149 | extern bool cpp_push_include (cpp_reader *, const char *); |
1efcb8c6 | 1150 | extern bool cpp_push_default_include (cpp_reader *, const char *); |
6cf87ca4 | 1151 | extern void cpp_change_file (cpp_reader *, enum lc_reason, const char *); |
94d1613b | 1152 | extern const char *cpp_get_path (struct _cpp_file *); |
e3c287c9 | 1153 | extern cpp_dir *cpp_get_dir (struct _cpp_file *); |
94d1613b MS |
1154 | extern cpp_buffer *cpp_get_buffer (cpp_reader *); |
1155 | extern struct _cpp_file *cpp_get_file (cpp_buffer *); | |
1156 | extern cpp_buffer *cpp_get_prev (cpp_buffer *); | |
97f6bd40 | 1157 | extern void cpp_clear_file_cache (cpp_reader *); |
b0699dad | 1158 | |
28f68625 | 1159 | /* In pch.c */ |
17211ab5 | 1160 | struct save_macro_data; |
6cf87ca4 ZW |
1161 | extern int cpp_save_state (cpp_reader *, FILE *); |
1162 | extern int cpp_write_pch_deps (cpp_reader *, FILE *); | |
1163 | extern int cpp_write_pch_state (cpp_reader *, FILE *); | |
1164 | extern int cpp_valid_state (cpp_reader *, const char *, int); | |
1165 | extern void cpp_prepare_state (cpp_reader *, struct save_macro_data **); | |
1166 | extern int cpp_read_state (cpp_reader *, const char *, FILE *, | |
1167 | struct save_macro_data *); | |
17211ab5 | 1168 | |
e3dfef44 GC |
1169 | /* In lex.c */ |
1170 | extern void cpp_force_token_locations (cpp_reader *, source_location *); | |
1171 | extern void cpp_stop_forcing_token_locations (cpp_reader *); | |
1172 | ||
3ce4f9e4 ESR |
1173 | /* In expr.c */ |
1174 | extern enum cpp_ttype cpp_userdef_string_remove_type | |
1175 | (enum cpp_ttype type); | |
1176 | extern enum cpp_ttype cpp_userdef_string_add_type | |
1177 | (enum cpp_ttype type); | |
1178 | extern enum cpp_ttype cpp_userdef_char_remove_type | |
1179 | (enum cpp_ttype type); | |
1180 | extern enum cpp_ttype cpp_userdef_char_add_type | |
1181 | (enum cpp_ttype type); | |
1182 | extern bool cpp_userdef_string_p | |
1183 | (enum cpp_ttype type); | |
1184 | extern bool cpp_userdef_char_p | |
1185 | (enum cpp_ttype type); | |
1186 | extern const char * cpp_get_userdef_suffix | |
1187 | (const cpp_token *); | |
1188 | ||
4f4e53dd | 1189 | #endif /* ! LIBCPP_CPPLIB_H */ |