Mercurial > hg > CbC > CbC_gcc
annotate gcc/pretty-print.h @ 120:f93fa5091070
fix conv1.c
| author | mir3636 |
|---|---|
| date | Thu, 08 Mar 2018 14:53:42 +0900 |
| parents | 04ced10e8804 |
| children | 84e7813d76e9 |
| rev | line source |
|---|---|
| 0 | 1 /* Various declarations for language-independent pretty-print subroutines. |
| 111 | 2 Copyright (C) 2002-2017 Free Software Foundation, Inc. |
| 0 | 3 Contributed by Gabriel Dos Reis <gdr@integrable-solutions.net> |
| 4 | |
| 5 This file is part of GCC. | |
| 6 | |
| 7 GCC is free software; you can redistribute it and/or modify it under | |
| 8 the terms of the GNU General Public License as published by the Free | |
| 9 Software Foundation; either version 3, or (at your option) any later | |
| 10 version. | |
| 11 | |
| 12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
| 13 WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 for more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License | |
| 18 along with GCC; see the file COPYING3. If not see | |
| 19 <http://www.gnu.org/licenses/>. */ | |
| 20 | |
| 21 #ifndef GCC_PRETTY_PRINT_H | |
| 22 #define GCC_PRETTY_PRINT_H | |
| 23 | |
| 24 #include "obstack.h" | |
| 25 | |
| 26 /* Maximum number of format string arguments. */ | |
| 27 #define PP_NL_ARGMAX 30 | |
| 28 | |
| 29 /* The type of a text to be formatted according a format specification | |
| 30 along with a list of things. */ | |
| 111 | 31 struct text_info |
| 0 | 32 { |
| 33 const char *format_spec; | |
| 34 va_list *args_ptr; | |
| 35 int err_no; /* for %m */ | |
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36 void **x_data; |
| 111 | 37 rich_location *m_richloc; |
| 38 | |
| 39 void set_location (unsigned int idx, location_t loc, bool caret_p); | |
| 40 location_t get_location (unsigned int index_of_location) const; | |
| 41 }; | |
| 0 | 42 |
| 43 /* How often diagnostics are prefixed by their locations: | |
| 44 o DIAGNOSTICS_SHOW_PREFIX_NEVER: never - not yet supported; | |
| 45 o DIAGNOSTICS_SHOW_PREFIX_ONCE: emit only once; | |
| 46 o DIAGNOSTICS_SHOW_PREFIX_EVERY_LINE: emit each time a physical | |
| 47 line is started. */ | |
| 111 | 48 enum diagnostic_prefixing_rule_t |
| 0 | 49 { |
| 50 DIAGNOSTICS_SHOW_PREFIX_ONCE = 0x0, | |
| 51 DIAGNOSTICS_SHOW_PREFIX_NEVER = 0x1, | |
| 52 DIAGNOSTICS_SHOW_PREFIX_EVERY_LINE = 0x2 | |
| 111 | 53 }; |
| 0 | 54 |
| 55 /* The chunk_info data structure forms a stack of the results from the | |
| 111 | 56 first phase of formatting (pp_format) which have not yet been |
| 57 output (pp_output_formatted_text). A stack is necessary because | |
| 0 | 58 the diagnostic starter may decide to generate its own output by way |
| 59 of the formatter. */ | |
| 60 struct chunk_info | |
| 61 { | |
| 62 /* Pointer to previous chunk on the stack. */ | |
| 63 struct chunk_info *prev; | |
| 64 | |
| 65 /* Array of chunks to output. Each chunk is a NUL-terminated string. | |
| 66 In the first phase of formatting, even-numbered chunks are | |
| 67 to be output verbatim, odd-numbered chunks are format specifiers. | |
| 68 The second phase replaces all odd-numbered chunks with formatted | |
| 69 text, and the third phase simply emits all the chunks in sequence | |
| 70 with appropriate line-wrapping. */ | |
| 71 const char *args[PP_NL_ARGMAX * 2]; | |
| 72 }; | |
| 73 | |
| 74 /* The output buffer datatype. This is best seen as an abstract datatype | |
| 75 whose fields should not be accessed directly by clients. */ | |
| 111 | 76 struct output_buffer |
| 0 | 77 { |
| 111 | 78 output_buffer (); |
| 79 ~output_buffer (); | |
| 80 | |
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81 /* Obstack where the text is built up. */ |
| 0 | 82 struct obstack formatted_obstack; |
| 83 | |
| 84 /* Obstack containing a chunked representation of the format | |
| 85 specification plus arguments. */ | |
| 86 struct obstack chunk_obstack; | |
| 87 | |
| 88 /* Currently active obstack: one of the above two. This is used so | |
| 89 that the text formatters don't need to know which phase we're in. */ | |
| 90 struct obstack *obstack; | |
| 91 | |
| 92 /* Stack of chunk arrays. These come from the chunk_obstack. */ | |
| 93 struct chunk_info *cur_chunk_array; | |
| 94 | |
| 95 /* Where to output formatted text. */ | |
| 96 FILE *stream; | |
| 97 | |
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98 /* The amount of characters output so far. */ |
| 0 | 99 int line_length; |
| 100 | |
| 101 /* This must be large enough to hold any printed integer or | |
| 102 floating-point value. */ | |
| 103 char digit_buffer[128]; | |
| 111 | 104 |
| 105 /* Nonzero means that text should be flushed when | |
| 106 appropriate. Otherwise, text is buffered until either | |
| 107 pp_really_flush or pp_clear_output_area are called. */ | |
| 108 bool flush_p; | |
| 109 }; | |
| 110 | |
| 111 /* Finishes constructing a NULL-terminated character string representing | |
| 112 the buffered text. */ | |
| 113 static inline const char * | |
| 114 output_buffer_formatted_text (output_buffer *buff) | |
| 115 { | |
| 116 obstack_1grow (buff->obstack, '\0'); | |
| 117 return (const char *) obstack_base (buff->obstack); | |
| 118 } | |
| 119 | |
| 120 /* Append to the output buffer a string specified by its | |
| 121 STARTing character and LENGTH. */ | |
| 122 static inline void | |
| 123 output_buffer_append_r (output_buffer *buff, const char *start, int length) | |
| 124 { | |
| 125 gcc_checking_assert (start); | |
| 126 obstack_grow (buff->obstack, start, length); | |
| 127 for (int i = 0; i < length; i++) | |
| 128 if (start[i] == '\n') | |
| 129 buff->line_length = 0; | |
| 130 else | |
| 131 buff->line_length++; | |
| 132 } | |
| 133 | |
| 134 /* Return a pointer to the last character emitted in the | |
| 135 output_buffer. A NULL pointer means no character available. */ | |
| 136 static inline const char * | |
| 137 output_buffer_last_position_in_text (const output_buffer *buff) | |
| 138 { | |
| 139 const char *p = NULL; | |
| 140 struct obstack *text = buff->obstack; | |
| 141 | |
| 142 if (obstack_base (text) != obstack_next_free (text)) | |
| 143 p = ((const char *) obstack_next_free (text)) - 1; | |
| 144 return p; | |
| 145 } | |
| 146 | |
| 0 | 147 |
| 148 /* The type of pretty-printer flags passed to clients. */ | |
| 149 typedef unsigned int pp_flags; | |
| 150 | |
| 111 | 151 enum pp_padding |
| 0 | 152 { |
| 153 pp_none, pp_before, pp_after | |
| 111 | 154 }; |
| 0 | 155 |
| 156 /* Structure for switching in and out of verbatim mode in a convenient | |
| 157 manner. */ | |
| 111 | 158 struct pp_wrapping_mode_t |
| 0 | 159 { |
| 160 /* Current prefixing rule. */ | |
| 161 diagnostic_prefixing_rule_t rule; | |
| 162 | |
| 163 /* The ideal upper bound of number of characters per line, as suggested | |
|
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164 by front-end. */ |
| 0 | 165 int line_cutoff; |
| 111 | 166 }; |
| 0 | 167 |
| 168 /* Maximum characters per line in automatic line wrapping mode. | |
| 169 Zero means don't wrap lines. */ | |
| 111 | 170 #define pp_line_cutoff(PP) (PP)->wrapping.line_cutoff |
| 0 | 171 |
| 172 /* Prefixing rule used in formatting a diagnostic message. */ | |
| 111 | 173 #define pp_prefixing_rule(PP) (PP)->wrapping.rule |
| 0 | 174 |
| 175 /* Get or set the wrapping mode as a single entity. */ | |
| 111 | 176 #define pp_wrapping_mode(PP) (PP)->wrapping |
| 0 | 177 |
| 111 | 178 /* The type of a hook that formats client-specific data onto a pretty_printer. |
| 0 | 179 A client-supplied formatter returns true if everything goes well, |
| 180 otherwise it returns false. */ | |
| 181 typedef bool (*printer_fn) (pretty_printer *, text_info *, const char *, | |
| 111 | 182 int, bool, bool, bool, bool, const char **); |
| 0 | 183 |
| 184 /* Client supplied function used to decode formats. */ | |
| 111 | 185 #define pp_format_decoder(PP) (PP)->format_decoder |
| 186 | |
| 187 /* Base class for an optional client-supplied object for doing additional | |
| 188 processing between stages 2 and 3 of formatted printing. */ | |
| 189 class format_postprocessor | |
| 190 { | |
| 191 public: | |
| 192 virtual ~format_postprocessor () {} | |
| 193 virtual void handle (pretty_printer *) = 0; | |
| 194 }; | |
| 0 | 195 |
| 196 /* TRUE if a newline character needs to be added before further | |
| 197 formatting. */ | |
| 111 | 198 #define pp_needs_newline(PP) (PP)->need_newline |
| 0 | 199 |
| 200 /* True if PRETTY-PRINTER is in line-wrapping mode. */ | |
| 201 #define pp_is_wrapping_line(PP) (pp_line_cutoff (PP) > 0) | |
| 202 | |
| 203 /* The amount of whitespace to be emitted when starting a new line. */ | |
| 111 | 204 #define pp_indentation(PP) (PP)->indent_skip |
| 0 | 205 |
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206 /* True if identifiers are translated to the locale character set on |
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207 output. */ |
| 111 | 208 #define pp_translate_identifiers(PP) (PP)->translate_identifiers |
| 209 | |
| 210 /* True if colors should be shown. */ | |
| 211 #define pp_show_color(PP) (PP)->show_color | |
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212 |
| 0 | 213 /* The data structure that contains the bare minimum required to do |
| 214 proper pretty-printing. Clients may derived from this structure | |
| 215 and add additional fields they need. */ | |
| 111 | 216 struct pretty_printer |
| 0 | 217 { |
| 111 | 218 // Default construct a pretty printer with specified prefix |
| 219 // and a maximum line length cut off limit. | |
| 220 explicit pretty_printer (const char* = NULL, int = 0); | |
| 221 | |
| 222 virtual ~pretty_printer (); | |
| 223 | |
| 0 | 224 /* Where we print external representation of ENTITY. */ |
| 225 output_buffer *buffer; | |
| 226 | |
| 227 /* The prefix for each new line. */ | |
| 228 const char *prefix; | |
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229 |
| 0 | 230 /* Where to put whitespace around the entity being formatted. */ |
| 231 pp_padding padding; | |
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232 |
| 0 | 233 /* The real upper bound of number of characters per line, taking into |
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234 account the case of a very very looong prefix. */ |
| 0 | 235 int maximum_length; |
| 236 | |
| 237 /* Indentation count. */ | |
| 238 int indent_skip; | |
| 239 | |
| 240 /* Current wrapping mode. */ | |
| 241 pp_wrapping_mode_t wrapping; | |
| 242 | |
| 243 /* If non-NULL, this function formats a TEXT into the BUFFER. When called, | |
| 244 TEXT->format_spec points to a format code. FORMAT_DECODER should call | |
| 245 pp_string (and related functions) to add data to the BUFFER. | |
| 246 FORMAT_DECODER can read arguments from *TEXT->args_pts using VA_ARG. | |
| 247 If the BUFFER needs additional characters from the format string, it | |
| 248 should advance the TEXT->format_spec as it goes. When FORMAT_DECODER | |
| 249 returns, TEXT->format_spec should point to the last character processed. | |
| 111 | 250 The QUOTE and BUFFER_PTR are passed in, to allow for deferring-handling |
| 251 of format codes (e.g. %H and %I in the C++ frontend). */ | |
| 0 | 252 printer_fn format_decoder; |
| 253 | |
| 111 | 254 /* If non-NULL, this is called by pp_format once after all format codes |
| 255 have been processed, to allow for client-specific postprocessing. | |
| 256 This is used by the C++ frontend for handling the %H and %I | |
| 257 format codes (which interract with each other). */ | |
| 258 format_postprocessor *m_format_postprocessor; | |
| 259 | |
| 0 | 260 /* Nonzero if current PREFIX was emitted at least once. */ |
| 261 bool emitted_prefix; | |
| 262 | |
| 263 /* Nonzero means one should emit a newline before outputting anything. */ | |
| 264 bool need_newline; | |
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265 |
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266 /* Nonzero means identifiers are translated to the locale character |
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267 set on output. */ |
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268 bool translate_identifiers; |
| 111 | 269 |
| 270 /* Nonzero means that text should be colorized. */ | |
| 271 bool show_color; | |
| 0 | 272 }; |
| 273 | |
| 111 | 274 static inline const char * |
| 275 pp_get_prefix (const pretty_printer *pp) { return pp->prefix; } | |
| 0 | 276 |
| 277 #define pp_space(PP) pp_character (PP, ' ') | |
| 278 #define pp_left_paren(PP) pp_character (PP, '(') | |
| 279 #define pp_right_paren(PP) pp_character (PP, ')') | |
| 280 #define pp_left_bracket(PP) pp_character (PP, '[') | |
| 281 #define pp_right_bracket(PP) pp_character (PP, ']') | |
| 282 #define pp_left_brace(PP) pp_character (PP, '{') | |
| 283 #define pp_right_brace(PP) pp_character (PP, '}') | |
| 284 #define pp_semicolon(PP) pp_character (PP, ';') | |
| 111 | 285 #define pp_comma(PP) pp_character (PP, ',') |
| 0 | 286 #define pp_dot(PP) pp_character (PP, '.') |
| 287 #define pp_colon(PP) pp_character (PP, ':') | |
| 288 #define pp_colon_colon(PP) pp_string (PP, "::") | |
| 289 #define pp_arrow(PP) pp_string (PP, "->") | |
| 290 #define pp_equal(PP) pp_character (PP, '=') | |
| 291 #define pp_question(PP) pp_character (PP, '?') | |
| 292 #define pp_bar(PP) pp_character (PP, '|') | |
| 111 | 293 #define pp_bar_bar(PP) pp_string (PP, "||") |
| 0 | 294 #define pp_carret(PP) pp_character (PP, '^') |
| 295 #define pp_ampersand(PP) pp_character (PP, '&') | |
| 111 | 296 #define pp_ampersand_ampersand(PP) pp_string (PP, "&&") |
| 0 | 297 #define pp_less(PP) pp_character (PP, '<') |
| 111 | 298 #define pp_less_equal(PP) pp_string (PP, "<=") |
| 0 | 299 #define pp_greater(PP) pp_character (PP, '>') |
| 111 | 300 #define pp_greater_equal(PP) pp_string (PP, ">=") |
| 0 | 301 #define pp_plus(PP) pp_character (PP, '+') |
| 302 #define pp_minus(PP) pp_character (PP, '-') | |
| 303 #define pp_star(PP) pp_character (PP, '*') | |
| 304 #define pp_slash(PP) pp_character (PP, '/') | |
| 305 #define pp_modulo(PP) pp_character (PP, '%') | |
| 306 #define pp_exclamation(PP) pp_character (PP, '!') | |
| 307 #define pp_complement(PP) pp_character (PP, '~') | |
| 308 #define pp_quote(PP) pp_character (PP, '\'') | |
| 309 #define pp_backquote(PP) pp_character (PP, '`') | |
| 310 #define pp_doublequote(PP) pp_character (PP, '"') | |
| 111 | 311 #define pp_underscore(PP) pp_character (PP, '_') |
| 0 | 312 #define pp_maybe_newline_and_indent(PP, N) \ |
| 313 if (pp_needs_newline (PP)) pp_newline_and_indent (PP, N) | |
| 314 #define pp_scalar(PP, FORMAT, SCALAR) \ | |
| 315 do \ | |
| 316 { \ | |
| 317 sprintf (pp_buffer (PP)->digit_buffer, FORMAT, SCALAR); \ | |
| 318 pp_string (PP, pp_buffer (PP)->digit_buffer); \ | |
| 319 } \ | |
| 320 while (0) | |
| 321 #define pp_decimal_int(PP, I) pp_scalar (PP, "%d", I) | |
| 111 | 322 #define pp_unsigned_wide_integer(PP, I) \ |
| 323 pp_scalar (PP, HOST_WIDE_INT_PRINT_UNSIGNED, (unsigned HOST_WIDE_INT) I) | |
| 324 #define pp_wide_int(PP, W, SGN) \ | |
| 325 do \ | |
| 326 { \ | |
| 327 print_dec (W, pp_buffer (PP)->digit_buffer, SGN); \ | |
| 328 pp_string (PP, pp_buffer (PP)->digit_buffer); \ | |
| 329 } \ | |
| 330 while (0) | |
| 0 | 331 #define pp_wide_integer(PP, I) \ |
| 332 pp_scalar (PP, HOST_WIDE_INT_PRINT_DEC, (HOST_WIDE_INT) I) | |
| 333 #define pp_pointer(PP, P) pp_scalar (PP, "%p", P) | |
| 334 | |
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335 #define pp_identifier(PP, ID) pp_string (PP, (pp_translate_identifiers (PP) \ |
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336 ? identifier_to_locale (ID) \ |
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337 : (ID))) |
| 0 | 338 |
| 339 | |
| 111 | 340 #define pp_buffer(PP) (PP)->buffer |
| 0 | 341 |
| 111 | 342 extern void pp_set_line_maximum_length (pretty_printer *, int); |
| 343 extern void pp_set_prefix (pretty_printer *, const char *); | |
| 344 extern void pp_destroy_prefix (pretty_printer *); | |
| 345 extern int pp_remaining_character_count_for_line (pretty_printer *); | |
| 346 extern void pp_clear_output_area (pretty_printer *); | |
| 347 extern const char *pp_formatted_text (pretty_printer *); | |
| 348 extern const char *pp_last_position_in_text (const pretty_printer *); | |
| 349 extern void pp_emit_prefix (pretty_printer *); | |
| 350 extern void pp_append_text (pretty_printer *, const char *, const char *); | |
| 351 extern void pp_newline_and_flush (pretty_printer *); | |
| 352 extern void pp_newline_and_indent (pretty_printer *, int); | |
| 353 extern void pp_separate_with (pretty_printer *, char); | |
| 354 | |
| 355 /* If we haven't already defined a front-end-specific diagnostics | |
| 356 style, use the generic one. */ | |
| 357 #ifdef GCC_DIAG_STYLE | |
| 358 #define GCC_PPDIAG_STYLE GCC_DIAG_STYLE | |
| 359 #else | |
| 360 #define GCC_PPDIAG_STYLE __gcc_diag__ | |
| 361 #endif | |
| 0 | 362 |
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363 /* This header may be included before diagnostics-core.h, hence the duplicate |
| 0 | 364 definitions to allow for GCC-specific formats. */ |
| 365 #if GCC_VERSION >= 3005 | |
| 111 | 366 #define ATTRIBUTE_GCC_PPDIAG(m, n) __attribute__ ((__format__ (GCC_PPDIAG_STYLE, m ,n))) ATTRIBUTE_NONNULL(m) |
| 0 | 367 #else |
| 368 #define ATTRIBUTE_GCC_PPDIAG(m, n) ATTRIBUTE_NONNULL(m) | |
| 369 #endif | |
| 370 extern void pp_printf (pretty_printer *, const char *, ...) | |
| 371 ATTRIBUTE_GCC_PPDIAG(2,3); | |
| 372 | |
| 373 extern void pp_verbatim (pretty_printer *, const char *, ...) | |
| 374 ATTRIBUTE_GCC_PPDIAG(2,3); | |
| 111 | 375 extern void pp_flush (pretty_printer *); |
| 376 extern void pp_really_flush (pretty_printer *); | |
| 377 extern void pp_format (pretty_printer *, text_info *); | |
| 378 extern void pp_output_formatted_text (pretty_printer *); | |
| 379 extern void pp_format_verbatim (pretty_printer *, text_info *); | |
| 0 | 380 |
| 111 | 381 extern void pp_indent (pretty_printer *); |
| 382 extern void pp_newline (pretty_printer *); | |
| 383 extern void pp_character (pretty_printer *, int); | |
| 384 extern void pp_string (pretty_printer *, const char *); | |
| 385 extern void pp_write_text_to_stream (pretty_printer *); | |
| 386 extern void pp_write_text_as_dot_label_to_stream (pretty_printer *, bool); | |
| 387 extern void pp_maybe_space (pretty_printer *); | |
| 0 | 388 |
| 389 /* Switch into verbatim mode and return the old mode. */ | |
| 390 static inline pp_wrapping_mode_t | |
| 391 pp_set_verbatim_wrapping_ (pretty_printer *pp) | |
| 392 { | |
| 393 pp_wrapping_mode_t oldmode = pp_wrapping_mode (pp); | |
| 394 pp_line_cutoff (pp) = 0; | |
| 395 pp_prefixing_rule (pp) = DIAGNOSTICS_SHOW_PREFIX_NEVER; | |
| 396 return oldmode; | |
| 397 } | |
| 111 | 398 #define pp_set_verbatim_wrapping(PP) pp_set_verbatim_wrapping_ (PP) |
| 0 | 399 |
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400 extern const char *identifier_to_locale (const char *); |
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401 extern void *(*identifier_to_locale_alloc) (size_t); |
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402 extern void (*identifier_to_locale_free) (void *); |
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403 |
| 0 | 404 #endif /* GCC_PRETTY_PRINT_H */ |