Mercurial > hg > CbC > CbC_gcc
annotate gcc/diagnostic.h @ 131:84e7813d76e9
gcc-8.2
| author | mir3636 |
|---|---|
| date | Thu, 25 Oct 2018 07:37:49 +0900 |
| parents | 04ced10e8804 |
| children | 1830386684a0 |
| rev | line source |
|---|---|
| 0 | 1 /* Various declarations for language-independent diagnostics subroutines. |
| 131 | 2 Copyright (C) 2000-2018 Free Software Foundation, Inc. |
| 0 | 3 Contributed by Gabriel Dos Reis <gdr@codesourcery.com> |
| 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_DIAGNOSTIC_H | |
| 22 #define GCC_DIAGNOSTIC_H | |
| 23 | |
| 24 #include "pretty-print.h" | |
|
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25 #include "diagnostic-core.h" |
| 0 | 26 |
| 27 /* A diagnostic is described by the MESSAGE to send, the FILE and LINE of | |
| 28 its context and its KIND (ice, error, warning, note, ...) See complete | |
| 29 list in diagnostic.def. */ | |
| 111 | 30 struct diagnostic_info |
| 0 | 31 { |
| 111 | 32 /* Text to be formatted. */ |
| 0 | 33 text_info message; |
| 111 | 34 |
| 35 /* The location at which the diagnostic is to be reported. */ | |
| 36 rich_location *richloc; | |
| 37 | |
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38 /* Auxiliary data for client. */ |
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39 void *x_data; |
| 0 | 40 /* The kind of diagnostic it is about. */ |
| 41 diagnostic_t kind; | |
| 42 /* Which OPT_* directly controls this diagnostic. */ | |
| 43 int option_index; | |
| 111 | 44 }; |
| 0 | 45 |
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46 /* Each time a diagnostic's classification is changed with a pragma, |
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47 we record the change and the location of the change in an array of |
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48 these structs. */ |
| 111 | 49 struct diagnostic_classification_change_t |
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50 { |
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51 location_t location; |
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52 int option; |
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53 diagnostic_t kind; |
| 111 | 54 }; |
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55 |
| 0 | 56 /* Forward declarations. */ |
| 57 typedef void (*diagnostic_starter_fn) (diagnostic_context *, | |
| 58 diagnostic_info *); | |
| 111 | 59 |
| 60 typedef void (*diagnostic_start_span_fn) (diagnostic_context *, | |
| 61 expanded_location); | |
| 62 | |
| 0 | 63 typedef diagnostic_starter_fn diagnostic_finalizer_fn; |
| 64 | |
| 111 | 65 class edit_context; |
| 66 | |
| 0 | 67 /* This data structure bundles altogether any information relevant to |
| 68 the context of a diagnostic message. */ | |
| 69 struct diagnostic_context | |
| 70 { | |
| 71 /* Where most of the diagnostic formatting work is done. */ | |
| 72 pretty_printer *printer; | |
| 73 | |
| 74 /* The number of times we have issued diagnostics. */ | |
| 75 int diagnostic_count[DK_LAST_DIAGNOSTIC_KIND]; | |
| 76 | |
| 77 /* True if it has been requested that warnings be treated as errors. */ | |
| 78 bool warning_as_error_requested; | |
| 79 | |
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80 /* The number of option indexes that can be passed to warning() et |
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81 al. */ |
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82 int n_opts; |
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83 |
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84 /* For each option index that can be passed to warning() et al |
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85 (OPT_* from options.h when using this code with the core GCC |
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86 options), this array may contain a new kind that the diagnostic |
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87 should be changed to before reporting, or DK_UNSPECIFIED to leave |
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88 it as the reported kind, or DK_IGNORED to not report it at |
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89 all. */ |
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90 diagnostic_t *classify_diagnostic; |
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91 |
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92 /* History of all changes to the classifications above. This list |
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93 is stored in location-order, so we can search it, either |
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94 binary-wise or end-to-front, to find the most recent |
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95 classification for a given diagnostic, given the location of the |
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96 diagnostic. */ |
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97 diagnostic_classification_change_t *classification_history; |
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98 |
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99 /* The size of the above array. */ |
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100 int n_classification_history; |
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101 |
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102 /* For pragma push/pop. */ |
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103 int *push_list; |
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104 int n_push; |
| 0 | 105 |
| 111 | 106 /* True if we should print the source line with a caret indicating |
| 107 the location. */ | |
| 108 bool show_caret; | |
| 109 | |
| 110 /* Maximum width of the source line printed. */ | |
| 111 int caret_max_width; | |
| 112 | |
| 113 /* Character used for caret diagnostics. */ | |
| 114 char caret_chars[rich_location::STATICALLY_ALLOCATED_RANGES]; | |
| 115 | |
| 0 | 116 /* True if we should print the command line option which controls |
| 117 each diagnostic, if known. */ | |
| 118 bool show_option_requested; | |
| 119 | |
| 120 /* True if we should raise a SIGABRT on errors. */ | |
| 121 bool abort_on_error; | |
| 122 | |
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123 /* True if we should show the column number on diagnostics. */ |
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124 bool show_column; |
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125 |
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126 /* True if pedwarns are errors. */ |
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127 bool pedantic_errors; |
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128 |
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129 /* True if permerrors are warnings. */ |
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130 bool permissive; |
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131 |
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132 /* The index of the option to associate with turning permerrors into |
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133 warnings. */ |
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134 int opt_permissive; |
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135 |
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136 /* True if errors are fatal. */ |
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137 bool fatal_errors; |
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138 |
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139 /* True if all warnings should be disabled. */ |
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140 bool dc_inhibit_warnings; |
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141 |
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142 /* True if warnings should be given in system headers. */ |
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143 bool dc_warn_system_headers; |
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144 |
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145 /* Maximum number of errors to report. */ |
| 111 | 146 int max_errors; |
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147 |
| 0 | 148 /* This function is called before any message is printed out. It is |
| 149 responsible for preparing message prefix and such. For example, it | |
| 150 might say: | |
| 151 In file included from "/usr/local/include/curses.h:5: | |
| 152 from "/home/gdr/src/nifty_printer.h:56: | |
| 153 ... | |
| 154 */ | |
| 155 diagnostic_starter_fn begin_diagnostic; | |
| 156 | |
| 111 | 157 /* This function is called by diagnostic_show_locus in between |
| 158 disjoint spans of source code, so that the context can print | |
| 159 something to indicate that a new span of source code has begun. */ | |
| 160 diagnostic_start_span_fn start_span; | |
| 161 | |
| 0 | 162 /* This function is called after the diagnostic message is printed. */ |
| 163 diagnostic_finalizer_fn end_diagnostic; | |
| 164 | |
| 165 /* Client hook to report an internal error. */ | |
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166 void (*internal_error) (diagnostic_context *, const char *, va_list *); |
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167 |
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168 /* Client hook to say whether the option controlling a diagnostic is |
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169 enabled. Returns nonzero if enabled, zero if disabled. */ |
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170 int (*option_enabled) (int, void *); |
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171 |
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172 /* Client information to pass as second argument to |
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173 option_enabled. */ |
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174 void *option_state; |
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175 |
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176 /* Client hook to return the name of an option that controls a |
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177 diagnostic. Returns malloced memory. The first diagnostic_t |
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178 argument is the kind of diagnostic before any reclassification |
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179 (of warnings as errors, etc.); the second is the kind after any |
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180 reclassification. May return NULL if no name is to be printed. |
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181 May be passed 0 as well as the index of a particular option. */ |
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182 char *(*option_name) (diagnostic_context *, int, diagnostic_t, diagnostic_t); |
| 0 | 183 |
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184 /* Auxiliary data for client. */ |
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185 void *x_data; |
| 0 | 186 |
| 111 | 187 /* Used to detect that the last caret was printed at the same location. */ |
| 188 location_t last_location; | |
| 189 | |
| 0 | 190 /* Used to detect when the input file stack has changed since last |
| 191 described. */ | |
| 111 | 192 const line_map_ordinary *last_module; |
| 0 | 193 |
| 194 int lock; | |
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195 |
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196 bool inhibit_notes_p; |
| 111 | 197 |
| 198 /* When printing source code, should the characters at carets and ranges | |
| 199 be colorized? (assuming colorization is on at all). | |
| 200 This should be true for frontends that generate range information | |
| 201 (so that the ranges of code are colorized), | |
| 202 and false for frontends that merely specify points within the | |
| 203 source code (to avoid e.g. colorizing just the first character in | |
| 204 a token, which would look strange). */ | |
| 205 bool colorize_source_p; | |
| 206 | |
| 131 | 207 /* When printing source code, should labelled ranges be printed? */ |
| 208 bool show_labels_p; | |
| 209 | |
| 210 /* When printing source code, should there be a left-hand margin | |
| 211 showing line numbers? */ | |
| 212 bool show_line_numbers_p; | |
| 213 | |
| 214 /* If printing source code, what should the minimum width of the margin | |
| 215 be? Line numbers will be right-aligned, and padded to this width. */ | |
| 216 int min_margin_width; | |
| 217 | |
| 111 | 218 /* Usable by plugins; if true, print a debugging ruler above the |
| 219 source output. */ | |
| 220 bool show_ruler_p; | |
| 221 | |
| 222 /* If true, print fixits in machine-parseable form after the | |
| 223 rest of the diagnostic. */ | |
| 224 bool parseable_fixits_p; | |
| 225 | |
| 226 /* If non-NULL, an edit_context to which fix-it hints should be | |
| 227 applied, for generating patches. */ | |
| 228 edit_context *edit_context_ptr; | |
| 131 | 229 |
| 230 /* How many diagnostic_group instances are currently alive. */ | |
| 231 int diagnostic_group_nesting_depth; | |
| 232 | |
| 233 /* How many diagnostics have been emitted since the bottommost | |
| 234 diagnostic_group was pushed. */ | |
| 235 int diagnostic_group_emission_count; | |
| 236 | |
| 237 /* Optional callbacks for handling diagnostic groups. */ | |
| 238 | |
| 239 /* If non-NULL, this will be called immediately before the first | |
| 240 time a diagnostic is emitted within a stack of groups. */ | |
| 241 void (*begin_group_cb) (diagnostic_context * context); | |
| 242 | |
| 243 /* If non-NULL, this will be called when a stack of groups is | |
| 244 popped if any diagnostics were emitted within that group. */ | |
| 245 void (*end_group_cb) (diagnostic_context * context); | |
| 0 | 246 }; |
| 247 | |
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248 static inline void |
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249 diagnostic_inhibit_notes (diagnostic_context * context) |
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250 { |
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251 context->inhibit_notes_p = true; |
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252 } |
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253 |
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254 |
| 0 | 255 /* Client supplied function to announce a diagnostic. */ |
| 256 #define diagnostic_starter(DC) (DC)->begin_diagnostic | |
| 257 | |
| 258 /* Client supplied function called after a diagnostic message is | |
| 259 displayed. */ | |
| 260 #define diagnostic_finalizer(DC) (DC)->end_diagnostic | |
| 261 | |
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262 /* Extension hooks for client. */ |
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263 #define diagnostic_context_auxiliary_data(DC) (DC)->x_data |
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264 #define diagnostic_info_auxiliary_data(DI) (DI)->x_data |
| 0 | 265 |
| 266 /* Same as pp_format_decoder. Works on 'diagnostic_context *'. */ | |
| 267 #define diagnostic_format_decoder(DC) ((DC)->printer->format_decoder) | |
| 268 | |
| 269 /* Same as output_prefixing_rule. Works on 'diagnostic_context *'. */ | |
| 270 #define diagnostic_prefixing_rule(DC) ((DC)->printer->wrapping.rule) | |
| 271 | |
| 272 /* Raise SIGABRT on any diagnostic of severity DK_ERROR or higher. */ | |
| 273 #define diagnostic_abort_on_error(DC) \ | |
| 274 (DC)->abort_on_error = true | |
| 275 | |
| 276 /* This diagnostic_context is used by front-ends that directly output | |
| 277 diagnostic messages without going through `error', `warning', | |
| 278 and similar functions. */ | |
| 279 extern diagnostic_context *global_dc; | |
| 280 | |
| 131 | 281 /* Returns whether the diagnostic framework has been intialized already and is |
| 282 ready for use. */ | |
| 283 #define diagnostic_ready_p() (global_dc->printer != NULL) | |
| 284 | |
| 0 | 285 /* The total count of a KIND of diagnostics emitted so far. */ |
| 286 #define diagnostic_kind_count(DC, DK) (DC)->diagnostic_count[(int) (DK)] | |
| 287 | |
| 288 /* The number of errors that have been issued so far. Ideally, these | |
| 289 would take a diagnostic_context as an argument. */ | |
| 290 #define errorcount diagnostic_kind_count (global_dc, DK_ERROR) | |
| 291 /* Similarly, but for warnings. */ | |
| 292 #define warningcount diagnostic_kind_count (global_dc, DK_WARNING) | |
| 111 | 293 /* Similarly, but for warnings promoted to errors. */ |
| 294 #define werrorcount diagnostic_kind_count (global_dc, DK_WERROR) | |
| 0 | 295 /* Similarly, but for sorrys. */ |
| 296 #define sorrycount diagnostic_kind_count (global_dc, DK_SORRY) | |
| 297 | |
| 298 /* Returns nonzero if warnings should be emitted. */ | |
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299 #define diagnostic_report_warnings_p(DC, LOC) \ |
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300 (!(DC)->dc_inhibit_warnings \ |
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301 && !(in_system_header_at (LOC) && !(DC)->dc_warn_system_headers)) |
| 0 | 302 |
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303 /* Override the option index to be used for reporting a |
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304 diagnostic. */ |
| 111 | 305 |
| 306 static inline void | |
| 307 diagnostic_override_option_index (diagnostic_info *info, int optidx) | |
| 308 { | |
| 309 info->option_index = optidx; | |
| 310 } | |
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311 |
| 0 | 312 /* Diagnostic related functions. */ |
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313 extern void diagnostic_initialize (diagnostic_context *, int); |
| 111 | 314 extern void diagnostic_color_init (diagnostic_context *, int value = -1); |
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315 extern void diagnostic_finish (diagnostic_context *); |
| 111 | 316 extern void diagnostic_report_current_module (diagnostic_context *, location_t); |
| 317 extern void diagnostic_show_locus (diagnostic_context *, | |
| 318 rich_location *richloc, | |
| 319 diagnostic_t diagnostic_kind); | |
| 0 | 320 |
| 321 /* Force diagnostics controlled by OPTIDX to be kind KIND. */ | |
| 322 extern diagnostic_t diagnostic_classify_diagnostic (diagnostic_context *, | |
| 323 int /* optidx */, | |
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324 diagnostic_t /* kind */, |
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325 location_t); |
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326 extern void diagnostic_push_diagnostics (diagnostic_context *, location_t); |
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327 extern void diagnostic_pop_diagnostics (diagnostic_context *, location_t); |
| 0 | 328 extern bool diagnostic_report_diagnostic (diagnostic_context *, |
| 329 diagnostic_info *); | |
| 330 #ifdef ATTRIBUTE_GCC_DIAG | |
| 331 extern void diagnostic_set_info (diagnostic_info *, const char *, va_list *, | |
| 111 | 332 rich_location *, diagnostic_t) ATTRIBUTE_GCC_DIAG(2,0); |
| 0 | 333 extern void diagnostic_set_info_translated (diagnostic_info *, const char *, |
| 111 | 334 va_list *, rich_location *, |
| 0 | 335 diagnostic_t) |
| 336 ATTRIBUTE_GCC_DIAG(2,0); | |
| 111 | 337 extern void diagnostic_append_note (diagnostic_context *, location_t, |
| 338 const char *, ...) ATTRIBUTE_GCC_DIAG(3,4); | |
| 0 | 339 #endif |
| 111 | 340 extern char *diagnostic_build_prefix (diagnostic_context *, const diagnostic_info *); |
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341 void default_diagnostic_starter (diagnostic_context *, diagnostic_info *); |
| 111 | 342 void default_diagnostic_start_span_fn (diagnostic_context *, |
| 343 expanded_location); | |
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344 void default_diagnostic_finalizer (diagnostic_context *, diagnostic_info *); |
| 111 | 345 void diagnostic_set_caret_max_width (diagnostic_context *context, int value); |
| 346 void diagnostic_action_after_output (diagnostic_context *, diagnostic_t); | |
| 347 void diagnostic_check_max_errors (diagnostic_context *, bool flush = false); | |
| 348 | |
| 349 void diagnostic_file_cache_fini (void); | |
| 350 | |
| 351 int get_terminal_width (void); | |
| 352 | |
| 353 /* Return the location associated to this diagnostic. Parameter WHICH | |
| 354 specifies which location. By default, expand the first one. */ | |
| 355 | |
| 356 static inline location_t | |
| 357 diagnostic_location (const diagnostic_info * diagnostic, int which = 0) | |
| 358 { | |
| 359 return diagnostic->message.get_location (which); | |
| 360 } | |
| 361 | |
| 362 /* Return the number of locations to be printed in DIAGNOSTIC. */ | |
| 363 | |
| 364 static inline unsigned int | |
| 365 diagnostic_num_locations (const diagnostic_info * diagnostic) | |
| 366 { | |
| 367 return diagnostic->message.m_richloc->get_num_locations (); | |
| 368 } | |
| 369 | |
| 370 /* Expand the location of this diagnostic. Use this function for | |
| 371 consistency. Parameter WHICH specifies which location. By default, | |
| 372 expand the first one. */ | |
| 373 | |
| 374 static inline expanded_location | |
| 375 diagnostic_expand_location (const diagnostic_info * diagnostic, int which = 0) | |
| 376 { | |
| 377 return diagnostic->richloc->get_expanded_location (which); | |
| 378 } | |
| 379 | |
| 380 /* This is somehow the right-side margin of a caret line, that is, we | |
| 381 print at least these many characters after the position pointed at | |
| 382 by the caret. */ | |
| 383 const int CARET_LINE_MARGIN = 10; | |
| 384 | |
| 385 /* Return true if the two locations can be represented within the same | |
| 386 caret line. This is used to build a prefix and also to determine | |
| 387 whether to print one or two caret lines. */ | |
| 388 | |
| 389 static inline bool | |
| 390 diagnostic_same_line (const diagnostic_context *context, | |
| 391 expanded_location s1, expanded_location s2) | |
| 392 { | |
| 393 return s2.column && s1.line == s2.line | |
| 394 && context->caret_max_width - CARET_LINE_MARGIN > abs (s1.column - s2.column); | |
| 395 } | |
| 396 | |
| 397 extern const char *diagnostic_get_color_for_kind (diagnostic_t kind); | |
| 0 | 398 |
| 399 /* Pure text formatting support functions. */ | |
| 111 | 400 extern char *file_name_as_prefix (diagnostic_context *, const char *); |
| 401 | |
| 402 extern char *build_message_string (const char *, ...) ATTRIBUTE_PRINTF_1; | |
| 403 | |
| 0 | 404 |
| 405 #endif /* ! GCC_DIAGNOSTIC_H */ |