Mercurial > hg > CbC > CbC_gcc
annotate gcc/diagnostic.h @ 158:494b0b89df80 default tip
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| author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Mon, 25 May 2020 18:13:55 +0900 |
| parents | 1830386684a0 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* Various declarations for language-independent diagnostics subroutines. |
| 145 | 2 Copyright (C) 2000-2020 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 |
| 145 | 27 /* Enum for overriding the standard output format. */ |
| 28 | |
| 29 enum diagnostics_output_format | |
| 30 { | |
| 31 /* The default: textual output. */ | |
| 32 DIAGNOSTICS_OUTPUT_FORMAT_TEXT, | |
| 33 | |
| 34 /* JSON-based output. */ | |
| 35 DIAGNOSTICS_OUTPUT_FORMAT_JSON | |
| 36 }; | |
| 37 | |
| 38 /* An enum for controlling how diagnostic_paths should be printed. */ | |
| 39 enum diagnostic_path_format | |
| 40 { | |
| 41 /* Don't print diagnostic_paths. */ | |
| 42 DPF_NONE, | |
| 43 | |
| 44 /* Print diagnostic_paths by emitting a separate "note" for every event | |
| 45 in the path. */ | |
| 46 DPF_SEPARATE_EVENTS, | |
| 47 | |
| 48 /* Print diagnostic_paths by consolidating events together where they | |
| 49 are close enough, and printing such runs of events with multiple | |
| 50 calls to diagnostic_show_locus, showing the individual events in | |
| 51 each run via labels in the source. */ | |
| 52 DPF_INLINE_EVENTS | |
| 53 }; | |
| 54 | |
| 0 | 55 /* A diagnostic is described by the MESSAGE to send, the FILE and LINE of |
| 56 its context and its KIND (ice, error, warning, note, ...) See complete | |
| 57 list in diagnostic.def. */ | |
| 111 | 58 struct diagnostic_info |
| 0 | 59 { |
| 111 | 60 /* Text to be formatted. */ |
| 0 | 61 text_info message; |
| 111 | 62 |
| 63 /* The location at which the diagnostic is to be reported. */ | |
| 64 rich_location *richloc; | |
| 65 | |
| 145 | 66 /* An optional bundle of metadata associated with the diagnostic |
| 67 (or NULL). */ | |
| 68 const diagnostic_metadata *metadata; | |
| 69 | |
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70 /* Auxiliary data for client. */ |
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71 void *x_data; |
| 0 | 72 /* The kind of diagnostic it is about. */ |
| 73 diagnostic_t kind; | |
| 74 /* Which OPT_* directly controls this diagnostic. */ | |
| 75 int option_index; | |
| 111 | 76 }; |
| 0 | 77 |
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78 /* Each time a diagnostic's classification is changed with a pragma, |
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79 we record the change and the location of the change in an array of |
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80 these structs. */ |
| 111 | 81 struct diagnostic_classification_change_t |
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82 { |
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83 location_t location; |
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84 int option; |
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85 diagnostic_t kind; |
| 111 | 86 }; |
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87 |
| 0 | 88 /* Forward declarations. */ |
| 89 typedef void (*diagnostic_starter_fn) (diagnostic_context *, | |
| 90 diagnostic_info *); | |
| 111 | 91 |
| 92 typedef void (*diagnostic_start_span_fn) (diagnostic_context *, | |
| 93 expanded_location); | |
| 94 | |
| 145 | 95 typedef void (*diagnostic_finalizer_fn) (diagnostic_context *, |
| 96 diagnostic_info *, | |
| 97 diagnostic_t); | |
| 0 | 98 |
| 111 | 99 class edit_context; |
| 145 | 100 namespace json { class value; } |
| 111 | 101 |
| 0 | 102 /* This data structure bundles altogether any information relevant to |
| 103 the context of a diagnostic message. */ | |
| 104 struct diagnostic_context | |
| 105 { | |
| 106 /* Where most of the diagnostic formatting work is done. */ | |
| 107 pretty_printer *printer; | |
| 108 | |
| 109 /* The number of times we have issued diagnostics. */ | |
| 110 int diagnostic_count[DK_LAST_DIAGNOSTIC_KIND]; | |
| 111 | |
| 112 /* True if it has been requested that warnings be treated as errors. */ | |
| 113 bool warning_as_error_requested; | |
| 114 | |
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115 /* The number of option indexes that can be passed to warning() et |
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116 al. */ |
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117 int n_opts; |
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118 |
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119 /* For each option index that can be passed to warning() et al |
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120 (OPT_* from options.h when using this code with the core GCC |
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121 options), this array may contain a new kind that the diagnostic |
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122 should be changed to before reporting, or DK_UNSPECIFIED to leave |
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123 it as the reported kind, or DK_IGNORED to not report it at |
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124 all. */ |
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125 diagnostic_t *classify_diagnostic; |
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126 |
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127 /* History of all changes to the classifications above. This list |
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128 is stored in location-order, so we can search it, either |
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129 binary-wise or end-to-front, to find the most recent |
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130 classification for a given diagnostic, given the location of the |
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131 diagnostic. */ |
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132 diagnostic_classification_change_t *classification_history; |
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133 |
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134 /* The size of the above array. */ |
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135 int n_classification_history; |
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136 |
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137 /* For pragma push/pop. */ |
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138 int *push_list; |
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139 int n_push; |
| 0 | 140 |
| 111 | 141 /* True if we should print the source line with a caret indicating |
| 142 the location. */ | |
| 143 bool show_caret; | |
| 144 | |
| 145 /* Maximum width of the source line printed. */ | |
| 146 int caret_max_width; | |
| 147 | |
| 148 /* Character used for caret diagnostics. */ | |
| 149 char caret_chars[rich_location::STATICALLY_ALLOCATED_RANGES]; | |
| 150 | |
| 145 | 151 /* True if we should print any CWE identifiers associated with |
| 152 diagnostics. */ | |
| 153 bool show_cwe; | |
| 154 | |
| 155 /* How should diagnostic_path objects be printed. */ | |
| 156 enum diagnostic_path_format path_format; | |
| 157 | |
| 158 /* True if we should print stack depths when printing diagnostic paths. */ | |
| 159 bool show_path_depths; | |
| 160 | |
| 0 | 161 /* True if we should print the command line option which controls |
| 162 each diagnostic, if known. */ | |
| 163 bool show_option_requested; | |
| 164 | |
| 165 /* True if we should raise a SIGABRT on errors. */ | |
| 166 bool abort_on_error; | |
| 167 | |
|
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168 /* True if we should show the column number on diagnostics. */ |
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169 bool show_column; |
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170 |
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171 /* True if pedwarns are errors. */ |
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172 bool pedantic_errors; |
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173 |
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174 /* True if permerrors are warnings. */ |
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175 bool permissive; |
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176 |
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177 /* The index of the option to associate with turning permerrors into |
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178 warnings. */ |
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179 int opt_permissive; |
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180 |
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181 /* True if errors are fatal. */ |
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182 bool fatal_errors; |
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183 |
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184 /* True if all warnings should be disabled. */ |
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185 bool dc_inhibit_warnings; |
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186 |
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187 /* True if warnings should be given in system headers. */ |
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188 bool dc_warn_system_headers; |
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189 |
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190 /* Maximum number of errors to report. */ |
| 111 | 191 int max_errors; |
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192 |
| 0 | 193 /* This function is called before any message is printed out. It is |
| 194 responsible for preparing message prefix and such. For example, it | |
| 195 might say: | |
| 196 In file included from "/usr/local/include/curses.h:5: | |
| 197 from "/home/gdr/src/nifty_printer.h:56: | |
| 198 ... | |
| 199 */ | |
| 200 diagnostic_starter_fn begin_diagnostic; | |
| 201 | |
| 111 | 202 /* This function is called by diagnostic_show_locus in between |
| 203 disjoint spans of source code, so that the context can print | |
| 204 something to indicate that a new span of source code has begun. */ | |
| 205 diagnostic_start_span_fn start_span; | |
| 206 | |
| 0 | 207 /* This function is called after the diagnostic message is printed. */ |
| 208 diagnostic_finalizer_fn end_diagnostic; | |
| 209 | |
| 210 /* Client hook to report an internal error. */ | |
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211 void (*internal_error) (diagnostic_context *, const char *, va_list *); |
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212 |
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213 /* Client hook to say whether the option controlling a diagnostic is |
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214 enabled. Returns nonzero if enabled, zero if disabled. */ |
| 145 | 215 int (*option_enabled) (int, unsigned, void *); |
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216 |
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217 /* Client information to pass as second argument to |
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218 option_enabled. */ |
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219 void *option_state; |
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220 |
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221 /* Client hook to return the name of an option that controls a |
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222 diagnostic. Returns malloced memory. The first diagnostic_t |
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223 argument is the kind of diagnostic before any reclassification |
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224 (of warnings as errors, etc.); the second is the kind after any |
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225 reclassification. May return NULL if no name is to be printed. |
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226 May be passed 0 as well as the index of a particular option. */ |
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227 char *(*option_name) (diagnostic_context *, int, diagnostic_t, diagnostic_t); |
| 0 | 228 |
| 145 | 229 /* Client hook to return a URL describing the option that controls |
| 230 a diagnostic. Returns malloced memory. May return NULL if no URL | |
| 231 is available. May be passed 0 as well as the index of a | |
| 232 particular option. */ | |
| 233 char *(*get_option_url) (diagnostic_context *, int); | |
| 234 | |
| 235 void (*print_path) (diagnostic_context *, const diagnostic_path *); | |
| 236 json::value *(*make_json_for_path) (diagnostic_context *, const diagnostic_path *); | |
| 237 | |
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238 /* Auxiliary data for client. */ |
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239 void *x_data; |
| 0 | 240 |
| 111 | 241 /* Used to detect that the last caret was printed at the same location. */ |
| 242 location_t last_location; | |
| 243 | |
| 0 | 244 /* Used to detect when the input file stack has changed since last |
| 245 described. */ | |
| 111 | 246 const line_map_ordinary *last_module; |
| 0 | 247 |
| 248 int lock; | |
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249 |
| 145 | 250 /* A copy of lang_hooks.option_lang_mask (). */ |
| 251 unsigned lang_mask; | |
| 252 | |
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253 bool inhibit_notes_p; |
| 111 | 254 |
| 255 /* When printing source code, should the characters at carets and ranges | |
| 256 be colorized? (assuming colorization is on at all). | |
| 257 This should be true for frontends that generate range information | |
| 258 (so that the ranges of code are colorized), | |
| 259 and false for frontends that merely specify points within the | |
| 260 source code (to avoid e.g. colorizing just the first character in | |
| 261 a token, which would look strange). */ | |
| 262 bool colorize_source_p; | |
| 263 | |
| 131 | 264 /* When printing source code, should labelled ranges be printed? */ |
| 265 bool show_labels_p; | |
| 266 | |
| 267 /* When printing source code, should there be a left-hand margin | |
| 268 showing line numbers? */ | |
| 269 bool show_line_numbers_p; | |
| 270 | |
| 271 /* If printing source code, what should the minimum width of the margin | |
| 272 be? Line numbers will be right-aligned, and padded to this width. */ | |
| 273 int min_margin_width; | |
| 274 | |
| 111 | 275 /* Usable by plugins; if true, print a debugging ruler above the |
| 276 source output. */ | |
| 277 bool show_ruler_p; | |
| 278 | |
| 279 /* If true, print fixits in machine-parseable form after the | |
| 280 rest of the diagnostic. */ | |
| 281 bool parseable_fixits_p; | |
| 282 | |
| 283 /* If non-NULL, an edit_context to which fix-it hints should be | |
| 284 applied, for generating patches. */ | |
| 285 edit_context *edit_context_ptr; | |
| 131 | 286 |
| 287 /* How many diagnostic_group instances are currently alive. */ | |
| 288 int diagnostic_group_nesting_depth; | |
| 289 | |
| 290 /* How many diagnostics have been emitted since the bottommost | |
| 291 diagnostic_group was pushed. */ | |
| 292 int diagnostic_group_emission_count; | |
| 293 | |
| 294 /* Optional callbacks for handling diagnostic groups. */ | |
| 295 | |
| 296 /* If non-NULL, this will be called immediately before the first | |
| 297 time a diagnostic is emitted within a stack of groups. */ | |
| 298 void (*begin_group_cb) (diagnostic_context * context); | |
| 299 | |
| 300 /* If non-NULL, this will be called when a stack of groups is | |
| 301 popped if any diagnostics were emitted within that group. */ | |
| 302 void (*end_group_cb) (diagnostic_context * context); | |
| 145 | 303 |
| 304 /* Callback for final cleanup. */ | |
| 305 void (*final_cb) (diagnostic_context *context); | |
| 0 | 306 }; |
| 307 | |
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308 static inline void |
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309 diagnostic_inhibit_notes (diagnostic_context * context) |
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310 { |
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311 context->inhibit_notes_p = true; |
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312 } |
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313 |
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314 |
| 0 | 315 /* Client supplied function to announce a diagnostic. */ |
| 316 #define diagnostic_starter(DC) (DC)->begin_diagnostic | |
| 317 | |
| 318 /* Client supplied function called after a diagnostic message is | |
| 319 displayed. */ | |
| 320 #define diagnostic_finalizer(DC) (DC)->end_diagnostic | |
| 321 | |
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322 /* Extension hooks for client. */ |
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323 #define diagnostic_context_auxiliary_data(DC) (DC)->x_data |
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324 #define diagnostic_info_auxiliary_data(DI) (DI)->x_data |
| 0 | 325 |
| 326 /* Same as pp_format_decoder. Works on 'diagnostic_context *'. */ | |
| 327 #define diagnostic_format_decoder(DC) ((DC)->printer->format_decoder) | |
| 328 | |
| 329 /* Same as output_prefixing_rule. Works on 'diagnostic_context *'. */ | |
| 330 #define diagnostic_prefixing_rule(DC) ((DC)->printer->wrapping.rule) | |
| 331 | |
| 332 /* Raise SIGABRT on any diagnostic of severity DK_ERROR or higher. */ | |
| 333 #define diagnostic_abort_on_error(DC) \ | |
| 334 (DC)->abort_on_error = true | |
| 335 | |
| 336 /* This diagnostic_context is used by front-ends that directly output | |
| 337 diagnostic messages without going through `error', `warning', | |
| 338 and similar functions. */ | |
| 339 extern diagnostic_context *global_dc; | |
| 340 | |
| 131 | 341 /* Returns whether the diagnostic framework has been intialized already and is |
| 342 ready for use. */ | |
| 343 #define diagnostic_ready_p() (global_dc->printer != NULL) | |
| 344 | |
| 0 | 345 /* The total count of a KIND of diagnostics emitted so far. */ |
| 346 #define diagnostic_kind_count(DC, DK) (DC)->diagnostic_count[(int) (DK)] | |
| 347 | |
| 348 /* The number of errors that have been issued so far. Ideally, these | |
| 349 would take a diagnostic_context as an argument. */ | |
| 350 #define errorcount diagnostic_kind_count (global_dc, DK_ERROR) | |
| 351 /* Similarly, but for warnings. */ | |
| 352 #define warningcount diagnostic_kind_count (global_dc, DK_WARNING) | |
| 111 | 353 /* Similarly, but for warnings promoted to errors. */ |
| 354 #define werrorcount diagnostic_kind_count (global_dc, DK_WERROR) | |
| 0 | 355 /* Similarly, but for sorrys. */ |
| 356 #define sorrycount diagnostic_kind_count (global_dc, DK_SORRY) | |
| 357 | |
| 358 /* Returns nonzero if warnings should be emitted. */ | |
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359 #define diagnostic_report_warnings_p(DC, LOC) \ |
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360 (!(DC)->dc_inhibit_warnings \ |
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361 && !(in_system_header_at (LOC) && !(DC)->dc_warn_system_headers)) |
| 0 | 362 |
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363 /* Override the option index to be used for reporting a |
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364 diagnostic. */ |
| 111 | 365 |
| 366 static inline void | |
| 367 diagnostic_override_option_index (diagnostic_info *info, int optidx) | |
| 368 { | |
| 369 info->option_index = optidx; | |
| 370 } | |
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371 |
| 0 | 372 /* Diagnostic related functions. */ |
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373 extern void diagnostic_initialize (diagnostic_context *, int); |
| 111 | 374 extern void diagnostic_color_init (diagnostic_context *, int value = -1); |
| 145 | 375 extern void diagnostic_urls_init (diagnostic_context *, int value = -1); |
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376 extern void diagnostic_finish (diagnostic_context *); |
| 111 | 377 extern void diagnostic_report_current_module (diagnostic_context *, location_t); |
| 378 extern void diagnostic_show_locus (diagnostic_context *, | |
| 379 rich_location *richloc, | |
| 380 diagnostic_t diagnostic_kind); | |
| 145 | 381 extern void diagnostic_show_any_path (diagnostic_context *, diagnostic_info *); |
| 0 | 382 |
| 383 /* Force diagnostics controlled by OPTIDX to be kind KIND. */ | |
| 384 extern diagnostic_t diagnostic_classify_diagnostic (diagnostic_context *, | |
| 385 int /* optidx */, | |
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386 diagnostic_t /* kind */, |
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387 location_t); |
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388 extern void diagnostic_push_diagnostics (diagnostic_context *, location_t); |
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389 extern void diagnostic_pop_diagnostics (diagnostic_context *, location_t); |
| 0 | 390 extern bool diagnostic_report_diagnostic (diagnostic_context *, |
| 391 diagnostic_info *); | |
| 392 #ifdef ATTRIBUTE_GCC_DIAG | |
| 393 extern void diagnostic_set_info (diagnostic_info *, const char *, va_list *, | |
| 111 | 394 rich_location *, diagnostic_t) ATTRIBUTE_GCC_DIAG(2,0); |
| 0 | 395 extern void diagnostic_set_info_translated (diagnostic_info *, const char *, |
| 111 | 396 va_list *, rich_location *, |
| 0 | 397 diagnostic_t) |
| 398 ATTRIBUTE_GCC_DIAG(2,0); | |
| 111 | 399 extern void diagnostic_append_note (diagnostic_context *, location_t, |
| 400 const char *, ...) ATTRIBUTE_GCC_DIAG(3,4); | |
| 0 | 401 #endif |
| 111 | 402 extern char *diagnostic_build_prefix (diagnostic_context *, const diagnostic_info *); |
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403 void default_diagnostic_starter (diagnostic_context *, diagnostic_info *); |
| 111 | 404 void default_diagnostic_start_span_fn (diagnostic_context *, |
| 405 expanded_location); | |
| 145 | 406 void default_diagnostic_finalizer (diagnostic_context *, diagnostic_info *, |
| 407 diagnostic_t); | |
| 111 | 408 void diagnostic_set_caret_max_width (diagnostic_context *context, int value); |
| 409 void diagnostic_action_after_output (diagnostic_context *, diagnostic_t); | |
| 410 void diagnostic_check_max_errors (diagnostic_context *, bool flush = false); | |
| 411 | |
| 412 void diagnostic_file_cache_fini (void); | |
| 413 | |
| 414 int get_terminal_width (void); | |
| 415 | |
| 416 /* Return the location associated to this diagnostic. Parameter WHICH | |
| 417 specifies which location. By default, expand the first one. */ | |
| 418 | |
| 419 static inline location_t | |
| 420 diagnostic_location (const diagnostic_info * diagnostic, int which = 0) | |
| 421 { | |
| 422 return diagnostic->message.get_location (which); | |
| 423 } | |
| 424 | |
| 425 /* Return the number of locations to be printed in DIAGNOSTIC. */ | |
| 426 | |
| 427 static inline unsigned int | |
| 428 diagnostic_num_locations (const diagnostic_info * diagnostic) | |
| 429 { | |
| 430 return diagnostic->message.m_richloc->get_num_locations (); | |
| 431 } | |
| 432 | |
| 433 /* Expand the location of this diagnostic. Use this function for | |
| 434 consistency. Parameter WHICH specifies which location. By default, | |
| 435 expand the first one. */ | |
| 436 | |
| 437 static inline expanded_location | |
| 438 diagnostic_expand_location (const diagnostic_info * diagnostic, int which = 0) | |
| 439 { | |
| 440 return diagnostic->richloc->get_expanded_location (which); | |
| 441 } | |
| 442 | |
| 443 /* This is somehow the right-side margin of a caret line, that is, we | |
| 444 print at least these many characters after the position pointed at | |
| 445 by the caret. */ | |
| 446 const int CARET_LINE_MARGIN = 10; | |
| 447 | |
| 448 /* Return true if the two locations can be represented within the same | |
| 449 caret line. This is used to build a prefix and also to determine | |
| 450 whether to print one or two caret lines. */ | |
| 451 | |
| 452 static inline bool | |
| 453 diagnostic_same_line (const diagnostic_context *context, | |
| 454 expanded_location s1, expanded_location s2) | |
| 455 { | |
| 456 return s2.column && s1.line == s2.line | |
| 457 && context->caret_max_width - CARET_LINE_MARGIN > abs (s1.column - s2.column); | |
| 458 } | |
| 459 | |
| 460 extern const char *diagnostic_get_color_for_kind (diagnostic_t kind); | |
| 0 | 461 |
| 462 /* Pure text formatting support functions. */ | |
| 111 | 463 extern char *file_name_as_prefix (diagnostic_context *, const char *); |
| 464 | |
| 465 extern char *build_message_string (const char *, ...) ATTRIBUTE_PRINTF_1; | |
| 466 | |
| 145 | 467 extern void diagnostic_output_format_init (diagnostic_context *, |
| 468 enum diagnostics_output_format); | |
| 469 | |
| 470 /* Compute the number of digits in the decimal representation of an integer. */ | |
| 471 extern int num_digits (int); | |
| 472 | |
| 473 extern json::value *json_from_expanded_location (location_t loc); | |
| 0 | 474 |
| 475 #endif /* ! GCC_DIAGNOSTIC_H */ |