Mercurial > hg > CbC > CbC_gcc
annotate libcpp/internal.h @ 63:b7f97abdc517 gcc-4.6-20100522
update gcc from gcc-4.5.0 to gcc-4.6
| author | ryoma <e075725@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Mon, 24 May 2010 12:47:05 +0900 |
| parents | 77e2b8dfacca |
| children | f6334be47118 |
| rev | line source |
|---|---|
| 0 | 1 /* Part of CPP library. |
| 2 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, | |
| 3 2008, 2009 Free Software Foundation, Inc. | |
| 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 | |
| 7 Free Software Foundation; either version 3, or (at your option) any | |
| 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 | |
| 16 along with this program; see the file COPYING3. If not see | |
| 17 <http://www.gnu.org/licenses/>. */ | |
| 18 | |
| 19 /* This header defines all the internal data structures and functions | |
| 20 that need to be visible across files. It should not be used outside | |
| 21 cpplib. */ | |
| 22 | |
| 23 #ifndef LIBCPP_INTERNAL_H | |
| 24 #define LIBCPP_INTERNAL_H | |
| 25 | |
| 26 #include "symtab.h" | |
| 27 #include "cpp-id-data.h" | |
| 28 | |
| 29 #if HAVE_ICONV | |
| 30 #include <iconv.h> | |
| 31 #else | |
| 32 #define HAVE_ICONV 0 | |
| 33 typedef int iconv_t; /* dummy */ | |
| 34 #endif | |
| 35 | |
|
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36 #ifdef __cplusplus |
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37 extern "C" { |
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38 #endif |
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39 |
| 0 | 40 struct directive; /* Deliberately incomplete. */ |
| 41 struct pending_option; | |
| 42 struct op; | |
| 43 struct _cpp_strbuf; | |
| 44 | |
| 45 typedef bool (*convert_f) (iconv_t, const unsigned char *, size_t, | |
| 46 struct _cpp_strbuf *); | |
| 47 struct cset_converter | |
| 48 { | |
| 49 convert_f func; | |
| 50 iconv_t cd; | |
| 51 int width; | |
| 52 }; | |
| 53 | |
| 54 #define BITS_PER_CPPCHAR_T (CHAR_BIT * sizeof (cppchar_t)) | |
| 55 | |
| 56 /* Test if a sign is valid within a preprocessing number. */ | |
| 57 #define VALID_SIGN(c, prevc) \ | |
| 58 (((c) == '+' || (c) == '-') && \ | |
| 59 ((prevc) == 'e' || (prevc) == 'E' \ | |
| 60 || (((prevc) == 'p' || (prevc) == 'P') \ | |
| 61 && CPP_OPTION (pfile, extended_numbers)))) | |
| 62 | |
| 63 #define CPP_OPTION(PFILE, OPTION) ((PFILE)->opts.OPTION) | |
| 64 #define CPP_BUFFER(PFILE) ((PFILE)->buffer) | |
| 65 #define CPP_BUF_COLUMN(BUF, CUR) ((CUR) - (BUF)->line_base) | |
| 66 #define CPP_BUF_COL(BUF) CPP_BUF_COLUMN(BUF, (BUF)->cur) | |
| 67 | |
| 68 #define CPP_INCREMENT_LINE(PFILE, COLS_HINT) do { \ | |
| 69 const struct line_maps *line_table = PFILE->line_table; \ | |
| 70 const struct line_map *map = &line_table->maps[line_table->used-1]; \ | |
| 71 linenum_type line = SOURCE_LINE (map, line_table->highest_line); \ | |
| 72 linemap_line_start (PFILE->line_table, line + 1, COLS_HINT); \ | |
| 73 } while (0) | |
| 74 | |
| 75 /* Maximum nesting of cpp_buffers. We use a static limit, partly for | |
| 76 efficiency, and partly to limit runaway recursion. */ | |
| 77 #define CPP_STACK_MAX 200 | |
| 78 | |
| 79 /* Host alignment handling. */ | |
| 80 struct dummy | |
| 81 { | |
| 82 char c; | |
| 83 union | |
| 84 { | |
| 85 double d; | |
| 86 int *p; | |
| 87 } u; | |
| 88 }; | |
| 89 | |
| 90 #define DEFAULT_ALIGNMENT offsetof (struct dummy, u) | |
| 91 #define CPP_ALIGN2(size, align) (((size) + ((align) - 1)) & ~((align) - 1)) | |
| 92 #define CPP_ALIGN(size) CPP_ALIGN2 (size, DEFAULT_ALIGNMENT) | |
| 93 | |
| 94 #define _cpp_mark_macro_used(NODE) do { \ | |
| 95 if ((NODE)->type == NT_MACRO && !((NODE)->flags & NODE_BUILTIN)) \ | |
| 96 (NODE)->value.macro->used = 1; } while (0) | |
| 97 | |
| 98 /* A generic memory buffer, and operations on it. */ | |
| 99 typedef struct _cpp_buff _cpp_buff; | |
| 100 struct _cpp_buff | |
| 101 { | |
| 102 struct _cpp_buff *next; | |
| 103 unsigned char *base, *cur, *limit; | |
| 104 }; | |
| 105 | |
| 106 extern _cpp_buff *_cpp_get_buff (cpp_reader *, size_t); | |
| 107 extern void _cpp_release_buff (cpp_reader *, _cpp_buff *); | |
| 108 extern void _cpp_extend_buff (cpp_reader *, _cpp_buff **, size_t); | |
| 109 extern _cpp_buff *_cpp_append_extend_buff (cpp_reader *, _cpp_buff *, size_t); | |
| 110 extern void _cpp_free_buff (_cpp_buff *); | |
| 111 extern unsigned char *_cpp_aligned_alloc (cpp_reader *, size_t); | |
| 112 extern unsigned char *_cpp_unaligned_alloc (cpp_reader *, size_t); | |
| 113 | |
| 114 #define BUFF_ROOM(BUFF) (size_t) ((BUFF)->limit - (BUFF)->cur) | |
| 115 #define BUFF_FRONT(BUFF) ((BUFF)->cur) | |
| 116 #define BUFF_LIMIT(BUFF) ((BUFF)->limit) | |
| 117 | |
| 118 /* #include types. */ | |
| 119 enum include_type {IT_INCLUDE, IT_INCLUDE_NEXT, IT_IMPORT, IT_CMDLINE}; | |
| 120 | |
| 121 union utoken | |
| 122 { | |
| 123 const cpp_token *token; | |
| 124 const cpp_token **ptoken; | |
| 125 }; | |
| 126 | |
| 127 /* A "run" of tokens; part of a chain of runs. */ | |
| 128 typedef struct tokenrun tokenrun; | |
| 129 struct tokenrun | |
| 130 { | |
| 131 tokenrun *next, *prev; | |
| 132 cpp_token *base, *limit; | |
| 133 }; | |
| 134 | |
| 135 /* Accessor macros for struct cpp_context. */ | |
| 136 #define FIRST(c) ((c)->u.iso.first) | |
| 137 #define LAST(c) ((c)->u.iso.last) | |
| 138 #define CUR(c) ((c)->u.trad.cur) | |
| 139 #define RLIMIT(c) ((c)->u.trad.rlimit) | |
| 140 | |
| 141 typedef struct cpp_context cpp_context; | |
| 142 struct cpp_context | |
| 143 { | |
| 144 /* Doubly-linked list. */ | |
| 145 cpp_context *next, *prev; | |
| 146 | |
| 147 union | |
| 148 { | |
| 149 /* For ISO macro expansion. Contexts other than the base context | |
| 150 are contiguous tokens. e.g. macro expansions, expanded | |
| 151 argument tokens. */ | |
| 152 struct | |
| 153 { | |
| 154 union utoken first; | |
| 155 union utoken last; | |
| 156 } iso; | |
| 157 | |
| 158 /* For traditional macro expansion. */ | |
| 159 struct | |
| 160 { | |
| 161 const unsigned char *cur; | |
| 162 const unsigned char *rlimit; | |
| 163 } trad; | |
| 164 } u; | |
| 165 | |
| 166 /* If non-NULL, a buffer used for storage related to this context. | |
| 167 When the context is popped, the buffer is released. */ | |
| 168 _cpp_buff *buff; | |
| 169 | |
| 170 /* For a macro context, the macro node, otherwise NULL. */ | |
| 171 cpp_hashnode *macro; | |
| 172 | |
| 173 /* True if utoken element is token, else ptoken. */ | |
| 174 bool direct_p; | |
| 175 }; | |
| 176 | |
| 177 struct lexer_state | |
| 178 { | |
| 179 /* Nonzero if first token on line is CPP_HASH. */ | |
| 180 unsigned char in_directive; | |
| 181 | |
| 182 /* Nonzero if in a directive that will handle padding tokens itself. | |
| 183 #include needs this to avoid problems with computed include and | |
| 184 spacing between tokens. */ | |
| 185 unsigned char directive_wants_padding; | |
| 186 | |
| 187 /* True if we are skipping a failed conditional group. */ | |
| 188 unsigned char skipping; | |
| 189 | |
| 190 /* Nonzero if in a directive that takes angle-bracketed headers. */ | |
| 191 unsigned char angled_headers; | |
| 192 | |
| 193 /* Nonzero if in a #if or #elif directive. */ | |
| 194 unsigned char in_expression; | |
| 195 | |
| 196 /* Nonzero to save comments. Turned off if discard_comments, and in | |
| 197 all directives apart from #define. */ | |
| 198 unsigned char save_comments; | |
| 199 | |
| 200 /* Nonzero if lexing __VA_ARGS__ is valid. */ | |
| 201 unsigned char va_args_ok; | |
| 202 | |
| 203 /* Nonzero if lexing poisoned identifiers is valid. */ | |
| 204 unsigned char poisoned_ok; | |
| 205 | |
| 206 /* Nonzero to prevent macro expansion. */ | |
| 207 unsigned char prevent_expansion; | |
| 208 | |
| 209 /* Nonzero when parsing arguments to a function-like macro. */ | |
| 210 unsigned char parsing_args; | |
| 211 | |
| 212 /* Nonzero if prevent_expansion is true only because output is | |
| 213 being discarded. */ | |
| 214 unsigned char discarding_output; | |
| 215 | |
| 216 /* Nonzero to skip evaluating part of an expression. */ | |
| 217 unsigned int skip_eval; | |
| 218 | |
| 219 /* Nonzero when handling a deferred pragma. */ | |
| 220 unsigned char in_deferred_pragma; | |
| 221 | |
| 222 /* Nonzero if the deferred pragma being handled allows macro expansion. */ | |
| 223 unsigned char pragma_allow_expansion; | |
| 224 }; | |
| 225 | |
| 226 /* Special nodes - identifiers with predefined significance. */ | |
| 227 struct spec_nodes | |
| 228 { | |
| 229 cpp_hashnode *n_defined; /* defined operator */ | |
| 230 cpp_hashnode *n_true; /* C++ keyword true */ | |
| 231 cpp_hashnode *n_false; /* C++ keyword false */ | |
| 232 cpp_hashnode *n__VA_ARGS__; /* C99 vararg macros */ | |
| 233 }; | |
| 234 | |
| 235 typedef struct _cpp_line_note _cpp_line_note; | |
| 236 struct _cpp_line_note | |
| 237 { | |
| 238 /* Location in the clean line the note refers to. */ | |
| 239 const unsigned char *pos; | |
| 240 | |
| 241 /* Type of note. The 9 'from' trigraph characters represent those | |
| 242 trigraphs, '\\' an escaped newline, ' ' an escaped newline with | |
|
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243 intervening space, 0 represents a note that has already been handled, |
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244 and anything else is invalid. */ |
| 0 | 245 unsigned int type; |
| 246 }; | |
| 247 | |
| 248 /* Represents the contents of a file cpplib has read in. */ | |
| 249 struct cpp_buffer | |
| 250 { | |
| 251 const unsigned char *cur; /* Current location. */ | |
| 252 const unsigned char *line_base; /* Start of current physical line. */ | |
| 253 const unsigned char *next_line; /* Start of to-be-cleaned logical line. */ | |
| 254 | |
| 255 const unsigned char *buf; /* Entire character buffer. */ | |
| 256 const unsigned char *rlimit; /* Writable byte at end of file. */ | |
| 257 | |
| 258 _cpp_line_note *notes; /* Array of notes. */ | |
| 259 unsigned int cur_note; /* Next note to process. */ | |
| 260 unsigned int notes_used; /* Number of notes. */ | |
| 261 unsigned int notes_cap; /* Size of allocated array. */ | |
| 262 | |
| 263 struct cpp_buffer *prev; | |
| 264 | |
| 265 /* Pointer into the file table; non-NULL if this is a file buffer. | |
| 266 Used for include_next and to record control macros. */ | |
| 267 struct _cpp_file *file; | |
| 268 | |
| 269 /* Saved value of __TIMESTAMP__ macro - date and time of last modification | |
| 270 of the assotiated file. */ | |
| 271 const unsigned char *timestamp; | |
| 272 | |
| 273 /* Value of if_stack at start of this file. | |
| 274 Used to prohibit unmatched #endif (etc) in an include file. */ | |
| 275 struct if_stack *if_stack; | |
| 276 | |
| 277 /* True if we need to get the next clean line. */ | |
| 278 bool need_line; | |
| 279 | |
| 280 /* True if we have already warned about C++ comments in this file. | |
| 281 The warning happens only for C89 extended mode with -pedantic on, | |
| 282 or for -Wtraditional, and only once per file (otherwise it would | |
| 283 be far too noisy). */ | |
| 284 unsigned int warned_cplusplus_comments : 1; | |
| 285 | |
| 286 /* True if we don't process trigraphs and escaped newlines. True | |
| 287 for preprocessed input, command line directives, and _Pragma | |
| 288 buffers. */ | |
| 289 unsigned int from_stage3 : 1; | |
| 290 | |
| 291 /* At EOF, a buffer is automatically popped. If RETURN_AT_EOF is | |
| 292 true, a CPP_EOF token is then returned. Otherwise, the next | |
| 293 token from the enclosing buffer is returned. */ | |
| 294 unsigned int return_at_eof : 1; | |
| 295 | |
| 296 /* One for a system header, two for a C system header file that therefore | |
| 297 needs to be extern "C" protected in C++, and zero otherwise. */ | |
| 298 unsigned char sysp; | |
| 299 | |
| 300 /* The directory of the this buffer's file. Its NAME member is not | |
| 301 allocated, so we don't need to worry about freeing it. */ | |
| 302 struct cpp_dir dir; | |
| 303 | |
| 304 /* Descriptor for converting from the input character set to the | |
| 305 source character set. */ | |
| 306 struct cset_converter input_cset_desc; | |
| 307 }; | |
| 308 | |
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309 /* The list of saved macros by push_macro pragma. */ |
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310 struct def_pragma_macro { |
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311 /* Chain element to previous saved macro. */ |
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312 struct def_pragma_macro *next; |
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313 /* Name of the macro. */ |
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314 char *name; |
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315 /* The stored macro content. */ |
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316 cpp_macro *value; |
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317 }; |
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318 |
| 0 | 319 /* A cpp_reader encapsulates the "state" of a pre-processor run. |
| 320 Applying cpp_get_token repeatedly yields a stream of pre-processor | |
| 321 tokens. Usually, there is only one cpp_reader object active. */ | |
| 322 struct cpp_reader | |
| 323 { | |
| 324 /* Top of buffer stack. */ | |
| 325 cpp_buffer *buffer; | |
| 326 | |
| 327 /* Overlaid buffer (can be different after processing #include). */ | |
| 328 cpp_buffer *overlaid_buffer; | |
| 329 | |
| 330 /* Lexer state. */ | |
| 331 struct lexer_state state; | |
| 332 | |
| 333 /* Source line tracking. */ | |
| 334 struct line_maps *line_table; | |
| 335 | |
| 336 /* The line of the '#' of the current directive. */ | |
| 337 source_location directive_line; | |
| 338 | |
| 339 /* Memory buffers. */ | |
| 340 _cpp_buff *a_buff; /* Aligned permanent storage. */ | |
| 341 _cpp_buff *u_buff; /* Unaligned permanent storage. */ | |
| 342 _cpp_buff *free_buffs; /* Free buffer chain. */ | |
| 343 | |
| 344 /* Context stack. */ | |
| 345 struct cpp_context base_context; | |
| 346 struct cpp_context *context; | |
| 347 | |
| 348 /* If in_directive, the directive if known. */ | |
| 349 const struct directive *directive; | |
| 350 | |
| 351 /* Token generated while handling a directive, if any. */ | |
| 352 cpp_token directive_result; | |
| 353 | |
| 354 /* When expanding a macro at top-level, this is the location of the | |
| 355 macro invocation. */ | |
| 356 source_location invocation_location; | |
| 357 | |
| 358 /* True if this call to cpp_get_token should consider setting | |
| 359 invocation_location. */ | |
| 360 bool set_invocation_location; | |
| 361 | |
| 362 /* Search paths for include files. */ | |
| 363 struct cpp_dir *quote_include; /* "" */ | |
| 364 struct cpp_dir *bracket_include; /* <> */ | |
| 365 struct cpp_dir no_search_path; /* No path. */ | |
| 366 | |
| 367 /* Chain of all hashed _cpp_file instances. */ | |
| 368 struct _cpp_file *all_files; | |
| 369 | |
| 370 struct _cpp_file *main_file; | |
| 371 | |
| 372 /* File and directory hash table. */ | |
| 373 struct htab *file_hash; | |
| 374 struct htab *dir_hash; | |
| 375 struct file_hash_entry_pool *file_hash_entries; | |
| 376 | |
| 377 /* Negative path lookup hash table. */ | |
| 378 struct htab *nonexistent_file_hash; | |
| 379 struct obstack nonexistent_file_ob; | |
| 380 | |
| 381 /* Nonzero means don't look for #include "foo" the source-file | |
| 382 directory. */ | |
| 383 bool quote_ignores_source_dir; | |
| 384 | |
| 385 /* Nonzero if any file has contained #pragma once or #import has | |
| 386 been used. */ | |
| 387 bool seen_once_only; | |
| 388 | |
| 389 /* Multiple include optimization. */ | |
| 390 const cpp_hashnode *mi_cmacro; | |
| 391 const cpp_hashnode *mi_ind_cmacro; | |
| 392 bool mi_valid; | |
| 393 | |
| 394 /* Lexing. */ | |
| 395 cpp_token *cur_token; | |
| 396 tokenrun base_run, *cur_run; | |
| 397 unsigned int lookaheads; | |
| 398 | |
| 399 /* Nonzero prevents the lexer from re-using the token runs. */ | |
| 400 unsigned int keep_tokens; | |
| 401 | |
| 402 /* Buffer to hold macro definition string. */ | |
| 403 unsigned char *macro_buffer; | |
| 404 unsigned int macro_buffer_len; | |
| 405 | |
| 406 /* Descriptor for converting from the source character set to the | |
| 407 execution character set. */ | |
| 408 struct cset_converter narrow_cset_desc; | |
| 409 | |
| 410 /* Descriptor for converting from the source character set to the | |
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411 UTF-8 execution character set. */ |
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412 struct cset_converter utf8_cset_desc; |
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413 |
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414 /* Descriptor for converting from the source character set to the |
| 0 | 415 UTF-16 execution character set. */ |
| 416 struct cset_converter char16_cset_desc; | |
| 417 | |
| 418 /* Descriptor for converting from the source character set to the | |
| 419 UTF-32 execution character set. */ | |
| 420 struct cset_converter char32_cset_desc; | |
| 421 | |
| 422 /* Descriptor for converting from the source character set to the | |
| 423 wide execution character set. */ | |
| 424 struct cset_converter wide_cset_desc; | |
| 425 | |
| 426 /* Date and time text. Calculated together if either is requested. */ | |
| 427 const unsigned char *date; | |
| 428 const unsigned char *time; | |
| 429 | |
| 430 /* EOF token, and a token forcing paste avoidance. */ | |
| 431 cpp_token avoid_paste; | |
| 432 cpp_token eof; | |
| 433 | |
| 434 /* Opaque handle to the dependencies of mkdeps.c. */ | |
| 435 struct deps *deps; | |
| 436 | |
| 437 /* Obstack holding all macro hash nodes. This never shrinks. | |
| 438 See identifiers.c */ | |
| 439 struct obstack hash_ob; | |
| 440 | |
| 441 /* Obstack holding buffer and conditional structures. This is a | |
| 442 real stack. See directives.c. */ | |
| 443 struct obstack buffer_ob; | |
| 444 | |
| 445 /* Pragma table - dynamic, because a library user can add to the | |
| 446 list of recognized pragmas. */ | |
| 447 struct pragma_entry *pragmas; | |
| 448 | |
| 449 /* Call backs to cpplib client. */ | |
| 450 struct cpp_callbacks cb; | |
| 451 | |
| 452 /* Identifier hash table. */ | |
| 453 struct ht *hash_table; | |
| 454 | |
| 455 /* Expression parser stack. */ | |
| 456 struct op *op_stack, *op_limit; | |
| 457 | |
| 458 /* User visible options. */ | |
| 459 struct cpp_options opts; | |
| 460 | |
| 461 /* Special nodes - identifiers with predefined significance to the | |
| 462 preprocessor. */ | |
| 463 struct spec_nodes spec_nodes; | |
| 464 | |
| 465 /* Whether cpplib owns the hashtable. */ | |
| 466 bool our_hashtable; | |
| 467 | |
| 468 /* Traditional preprocessing output buffer (a logical line). */ | |
| 469 struct | |
| 470 { | |
| 471 unsigned char *base; | |
| 472 unsigned char *limit; | |
| 473 unsigned char *cur; | |
| 474 source_location first_line; | |
| 475 } out; | |
| 476 | |
| 477 /* Used for buffer overlays by traditional.c. */ | |
| 478 const unsigned char *saved_cur, *saved_rlimit, *saved_line_base; | |
| 479 | |
| 480 /* A saved list of the defined macros, for dependency checking | |
| 481 of precompiled headers. */ | |
| 482 struct cpp_savedstate *savedstate; | |
| 483 | |
| 484 /* Next value of __COUNTER__ macro. */ | |
| 485 unsigned int counter; | |
| 486 | |
| 487 /* Table of comments, when state.save_comments is true. */ | |
| 488 cpp_comment_table comments; | |
|
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489 |
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490 /* List of saved macros by push_macro. */ |
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491 struct def_pragma_macro *pushed_macros; |
| 0 | 492 }; |
| 493 | |
| 494 /* Character classes. Based on the more primitive macros in safe-ctype.h. | |
| 495 If the definition of `numchar' looks odd to you, please look up the | |
| 496 definition of a pp-number in the C standard [section 6.4.8 of C99]. | |
| 497 | |
| 498 In the unlikely event that characters other than \r and \n enter | |
| 499 the set is_vspace, the macro handle_newline() in lex.c must be | |
| 500 updated. */ | |
| 501 #define _dollar_ok(x) ((x) == '$' && CPP_OPTION (pfile, dollars_in_ident)) | |
| 502 | |
| 503 #define is_idchar(x) (ISIDNUM(x) || _dollar_ok(x)) | |
| 504 #define is_numchar(x) ISIDNUM(x) | |
| 505 #define is_idstart(x) (ISIDST(x) || _dollar_ok(x)) | |
| 506 #define is_numstart(x) ISDIGIT(x) | |
| 507 #define is_hspace(x) ISBLANK(x) | |
| 508 #define is_vspace(x) IS_VSPACE(x) | |
| 509 #define is_nvspace(x) IS_NVSPACE(x) | |
| 510 #define is_space(x) IS_SPACE_OR_NUL(x) | |
| 511 | |
| 512 /* This table is constant if it can be initialized at compile time, | |
| 513 which is the case if cpp was compiled with GCC >=2.7, or another | |
| 514 compiler that supports C99. */ | |
| 515 #if HAVE_DESIGNATED_INITIALIZERS | |
| 516 extern const unsigned char _cpp_trigraph_map[UCHAR_MAX + 1]; | |
| 517 #else | |
| 518 extern unsigned char _cpp_trigraph_map[UCHAR_MAX + 1]; | |
| 519 #endif | |
| 520 | |
| 521 /* Macros. */ | |
| 522 | |
| 523 static inline int cpp_in_system_header (cpp_reader *); | |
| 524 static inline int | |
| 525 cpp_in_system_header (cpp_reader *pfile) | |
| 526 { | |
| 527 return pfile->buffer ? pfile->buffer->sysp : 0; | |
| 528 } | |
| 529 #define CPP_PEDANTIC(PF) CPP_OPTION (PF, pedantic) | |
| 530 #define CPP_WTRADITIONAL(PF) CPP_OPTION (PF, warn_traditional) | |
| 531 | |
| 532 static inline int cpp_in_primary_file (cpp_reader *); | |
| 533 static inline int | |
| 534 cpp_in_primary_file (cpp_reader *pfile) | |
| 535 { | |
| 536 return pfile->line_table->depth == 1; | |
| 537 } | |
| 538 | |
| 539 /* In macro.c */ | |
| 540 extern void _cpp_free_definition (cpp_hashnode *); | |
| 541 extern bool _cpp_create_definition (cpp_reader *, cpp_hashnode *); | |
| 542 extern void _cpp_pop_context (cpp_reader *); | |
| 543 extern void _cpp_push_text_context (cpp_reader *, cpp_hashnode *, | |
| 544 const unsigned char *, size_t); | |
| 545 extern bool _cpp_save_parameter (cpp_reader *, cpp_macro *, cpp_hashnode *); | |
| 546 extern bool _cpp_arguments_ok (cpp_reader *, cpp_macro *, const cpp_hashnode *, | |
| 547 unsigned int); | |
| 548 extern const unsigned char *_cpp_builtin_macro_text (cpp_reader *, | |
| 549 cpp_hashnode *); | |
| 550 extern int _cpp_warn_if_unused_macro (cpp_reader *, cpp_hashnode *, void *); | |
| 551 extern void _cpp_push_token_context (cpp_reader *, cpp_hashnode *, | |
| 552 const cpp_token *, unsigned int); | |
| 553 extern void _cpp_backup_tokens_direct (cpp_reader *, unsigned int); | |
| 554 | |
| 555 /* In identifiers.c */ | |
| 556 extern void _cpp_init_hashtable (cpp_reader *, hash_table *); | |
| 557 extern void _cpp_destroy_hashtable (cpp_reader *); | |
| 558 | |
| 559 /* In files.c */ | |
| 560 typedef struct _cpp_file _cpp_file; | |
| 561 extern _cpp_file *_cpp_find_file (cpp_reader *, const char *, cpp_dir *, | |
| 562 bool, int); | |
| 563 extern bool _cpp_find_failed (_cpp_file *); | |
| 564 extern void _cpp_mark_file_once_only (cpp_reader *, struct _cpp_file *); | |
| 565 extern void _cpp_fake_include (cpp_reader *, const char *); | |
| 566 extern bool _cpp_stack_file (cpp_reader *, _cpp_file*, bool); | |
| 567 extern bool _cpp_stack_include (cpp_reader *, const char *, int, | |
| 568 enum include_type); | |
| 569 extern int _cpp_compare_file_date (cpp_reader *, const char *, int); | |
| 570 extern void _cpp_report_missing_guards (cpp_reader *); | |
| 571 extern void _cpp_init_files (cpp_reader *); | |
| 572 extern void _cpp_cleanup_files (cpp_reader *); | |
| 573 extern void _cpp_pop_file_buffer (cpp_reader *, struct _cpp_file *); | |
| 574 extern bool _cpp_save_file_entries (cpp_reader *pfile, FILE *f); | |
| 575 extern bool _cpp_read_file_entries (cpp_reader *, FILE *); | |
| 576 extern struct stat *_cpp_get_file_stat (_cpp_file *); | |
| 577 | |
| 578 /* In expr.c */ | |
| 579 extern bool _cpp_parse_expr (cpp_reader *, bool); | |
| 580 extern struct op *_cpp_expand_op_stack (cpp_reader *); | |
| 581 | |
| 582 /* In lex.c */ | |
| 583 extern void _cpp_process_line_notes (cpp_reader *, int); | |
| 584 extern void _cpp_clean_line (cpp_reader *); | |
| 585 extern bool _cpp_get_fresh_line (cpp_reader *); | |
| 586 extern bool _cpp_skip_block_comment (cpp_reader *); | |
| 587 extern cpp_token *_cpp_temp_token (cpp_reader *); | |
| 588 extern const cpp_token *_cpp_lex_token (cpp_reader *); | |
| 589 extern cpp_token *_cpp_lex_direct (cpp_reader *); | |
| 590 extern int _cpp_equiv_tokens (const cpp_token *, const cpp_token *); | |
| 591 extern void _cpp_init_tokenrun (tokenrun *, unsigned int); | |
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592 extern cpp_hashnode *_cpp_lex_identifier (cpp_reader *, const char *); |
| 0 | 593 |
| 594 /* In init.c. */ | |
| 595 extern void _cpp_maybe_push_include_file (cpp_reader *); | |
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596 extern const char *cpp_named_operator2name (enum cpp_ttype type); |
| 0 | 597 |
| 598 /* In directives.c */ | |
| 599 extern int _cpp_test_assertion (cpp_reader *, unsigned int *); | |
| 600 extern int _cpp_handle_directive (cpp_reader *, int); | |
| 601 extern void _cpp_define_builtin (cpp_reader *, const char *); | |
| 602 extern char ** _cpp_save_pragma_names (cpp_reader *); | |
| 603 extern void _cpp_restore_pragma_names (cpp_reader *, char **); | |
| 604 extern int _cpp_do__Pragma (cpp_reader *); | |
| 605 extern void _cpp_init_directives (cpp_reader *); | |
| 606 extern void _cpp_init_internal_pragmas (cpp_reader *); | |
| 607 extern void _cpp_do_file_change (cpp_reader *, enum lc_reason, const char *, | |
| 608 linenum_type, unsigned int); | |
| 609 extern void _cpp_pop_buffer (cpp_reader *); | |
| 610 | |
| 611 /* In directives.c */ | |
| 612 struct _cpp_dir_only_callbacks | |
| 613 { | |
| 614 /* Called to print a block of lines. */ | |
| 615 void (*print_lines) (int, const void *, size_t); | |
| 616 void (*maybe_print_line) (source_location); | |
| 617 }; | |
| 618 | |
| 619 extern void _cpp_preprocess_dir_only (cpp_reader *, | |
| 620 const struct _cpp_dir_only_callbacks *); | |
| 621 | |
| 622 /* In traditional.c. */ | |
| 623 extern bool _cpp_scan_out_logical_line (cpp_reader *, cpp_macro *); | |
| 624 extern bool _cpp_read_logical_line_trad (cpp_reader *); | |
| 625 extern void _cpp_overlay_buffer (cpp_reader *pfile, const unsigned char *, | |
| 626 size_t); | |
| 627 extern void _cpp_remove_overlay (cpp_reader *); | |
| 628 extern bool _cpp_create_trad_definition (cpp_reader *, cpp_macro *); | |
| 629 extern bool _cpp_expansions_different_trad (const cpp_macro *, | |
| 630 const cpp_macro *); | |
| 631 extern unsigned char *_cpp_copy_replacement_text (const cpp_macro *, | |
| 632 unsigned char *); | |
| 633 extern size_t _cpp_replacement_text_len (const cpp_macro *); | |
| 634 | |
| 635 /* In charset.c. */ | |
| 636 | |
| 637 /* The normalization state at this point in the sequence. | |
| 638 It starts initialized to all zeros, and at the end | |
| 639 'level' is the normalization level of the sequence. */ | |
| 640 | |
| 641 struct normalize_state | |
| 642 { | |
| 643 /* The previous character. */ | |
| 644 cppchar_t previous; | |
| 645 /* The combining class of the previous character. */ | |
| 646 unsigned char prev_class; | |
| 647 /* The lowest normalization level so far. */ | |
| 648 enum cpp_normalize_level level; | |
| 649 }; | |
| 650 #define INITIAL_NORMALIZE_STATE { 0, 0, normalized_KC } | |
| 651 #define NORMALIZE_STATE_RESULT(st) ((st)->level) | |
| 652 | |
| 653 /* We saw a character that matches ISIDNUM(), update a | |
| 654 normalize_state appropriately. */ | |
| 655 #define NORMALIZE_STATE_UPDATE_IDNUM(st) \ | |
| 656 ((st)->previous = 0, (st)->prev_class = 0) | |
| 657 | |
| 658 extern cppchar_t _cpp_valid_ucn (cpp_reader *, const unsigned char **, | |
| 659 const unsigned char *, int, | |
| 660 struct normalize_state *state); | |
| 661 extern void _cpp_destroy_iconv (cpp_reader *); | |
| 662 extern unsigned char *_cpp_convert_input (cpp_reader *, const char *, | |
| 663 unsigned char *, size_t, size_t, | |
| 664 const unsigned char **, off_t *); | |
| 665 extern const char *_cpp_default_encoding (void); | |
| 666 extern cpp_hashnode * _cpp_interpret_identifier (cpp_reader *pfile, | |
| 667 const unsigned char *id, | |
| 668 size_t len); | |
| 669 | |
| 670 /* Utility routines and macros. */ | |
| 671 #define DSC(str) (const unsigned char *)str, sizeof str - 1 | |
| 672 | |
| 673 /* These are inline functions instead of macros so we can get type | |
| 674 checking. */ | |
| 675 static inline int ustrcmp (const unsigned char *, const unsigned char *); | |
| 676 static inline int ustrncmp (const unsigned char *, const unsigned char *, | |
| 677 size_t); | |
| 678 static inline size_t ustrlen (const unsigned char *); | |
| 679 static inline unsigned char *uxstrdup (const unsigned char *); | |
| 680 static inline unsigned char *ustrchr (const unsigned char *, int); | |
| 681 static inline int ufputs (const unsigned char *, FILE *); | |
| 682 | |
| 683 /* Use a const char for the second parameter since it is usually a literal. */ | |
| 684 static inline int ustrcspn (const unsigned char *, const char *); | |
| 685 | |
| 686 static inline int | |
| 687 ustrcmp (const unsigned char *s1, const unsigned char *s2) | |
| 688 { | |
| 689 return strcmp ((const char *)s1, (const char *)s2); | |
| 690 } | |
| 691 | |
| 692 static inline int | |
| 693 ustrncmp (const unsigned char *s1, const unsigned char *s2, size_t n) | |
| 694 { | |
| 695 return strncmp ((const char *)s1, (const char *)s2, n); | |
| 696 } | |
| 697 | |
| 698 static inline int | |
| 699 ustrcspn (const unsigned char *s1, const char *s2) | |
| 700 { | |
| 701 return strcspn ((const char *)s1, s2); | |
| 702 } | |
| 703 | |
| 704 static inline size_t | |
| 705 ustrlen (const unsigned char *s1) | |
| 706 { | |
| 707 return strlen ((const char *)s1); | |
| 708 } | |
| 709 | |
| 710 static inline unsigned char * | |
| 711 uxstrdup (const unsigned char *s1) | |
| 712 { | |
| 713 return (unsigned char *) xstrdup ((const char *)s1); | |
| 714 } | |
| 715 | |
| 716 static inline unsigned char * | |
| 717 ustrchr (const unsigned char *s1, int c) | |
| 718 { | |
| 719 return (unsigned char *) strchr ((const char *)s1, c); | |
| 720 } | |
| 721 | |
| 722 static inline int | |
| 723 ufputs (const unsigned char *s, FILE *f) | |
| 724 { | |
| 725 return fputs ((const char *)s, f); | |
| 726 } | |
| 727 | |
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728 #ifdef __cplusplus |
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729 } |
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730 #endif |
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731 |
| 0 | 732 #endif /* ! LIBCPP_INTERNAL_H */ |