1/* Various declarations for language-independent diagnostics subroutines. 2 Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006 3 Free Software Foundation, Inc. 4 Contributed by Gabriel Dos Reis <gdr@codesourcery.com> 5 6This file is part of GCC. 7 8GCC is free software; you can redistribute it and/or modify it under 9the terms of the GNU General Public License as published by the Free 10Software Foundation; either version 2, or (at your option) any later 11version. 12 13GCC is distributed in the hope that it will be useful, but WITHOUT ANY 14WARRANTY; without even the implied warranty of MERCHANTABILITY or 15FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 16for more details. 17 18You should have received a copy of the GNU General Public License 19along with GCC; see the file COPYING. If not, write to the Free 20Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 2102110-1301, USA. */ 22 23#ifndef GCC_DIAGNOSTIC_H 24#define GCC_DIAGNOSTIC_H 25 26#include "pretty-print.h" 27#include "options.h" 28 29/* Constants used to discriminate diagnostics. */ 30typedef enum 31{ 32#define DEFINE_DIAGNOSTIC_KIND(K, msgid) K, 33#include "diagnostic.def" 34#undef DEFINE_DIAGNOSTIC_KIND 35 DK_LAST_DIAGNOSTIC_KIND 36} diagnostic_t; 37 38/* A diagnostic is described by the MESSAGE to send, the FILE and LINE of 39 its context and its KIND (ice, error, warning, note, ...) See complete 40 list in diagnostic.def. */ 41typedef struct 42{ 43 text_info message; 44 location_t location; 45 /* The kind of diagnostic it is about. */ 46 diagnostic_t kind; 47 /* Which OPT_* directly controls this diagnostic. */ 48 int option_index; 49} diagnostic_info; 50 51#define pedantic_error_kind() (flag_pedantic_errors ? DK_ERROR : DK_WARNING) 52 53 54/* Forward declarations. */ 55typedef struct diagnostic_context diagnostic_context; 56typedef void (*diagnostic_starter_fn) (diagnostic_context *, 57 diagnostic_info *); 58typedef diagnostic_starter_fn diagnostic_finalizer_fn; 59 60/* This data structure bundles altogether any information relevant to 61 the context of a diagnostic message. */ 62struct diagnostic_context 63{ 64 /* Where most of the diagnostic formatting work is done. */ 65 pretty_printer *printer; 66 67 /* The number of times we have issued diagnostics. */ 68 int diagnostic_count[DK_LAST_DIAGNOSTIC_KIND]; 69 70 /* True if we should display the "warnings are being tread as error" 71 message, usually displayed once per compiler run. */ 72 bool issue_warnings_are_errors_message; 73 74 /* True if it has been requested that warnings be treated as errors. */ 75 bool warning_as_error_requested; 76 77 /* For each option index that can be passed to warning() et all 78 (OPT_* from options.h), this array may contain a new kind that 79 the diagnostic should be changed to before reporting, or 80 DK_UNSPECIFIED to leave it as the reported kind, or DK_IGNORED to 81 not report it at all. N_OPTS is from <options.h>. */ 82 char classify_diagnostic[N_OPTS]; 83 84 /* True if we should print the command line option which controls 85 each diagnostic, if known. */ 86 bool show_option_requested; 87 88 /* True if we should raise a SIGABRT on errors. */ 89 bool abort_on_error; 90 91 /* This function is called before any message is printed out. It is 92 responsible for preparing message prefix and such. For example, it 93 might say: 94 In file included from "/usr/local/include/curses.h:5: 95 from "/home/gdr/src/nifty_printer.h:56: 96 ... 97 */ 98 diagnostic_starter_fn begin_diagnostic; 99 100 /* This function is called after the diagnostic message is printed. */ 101 diagnostic_finalizer_fn end_diagnostic; 102 103 /* Client hook to report an internal error. */ 104 void (*internal_error) (const char *, va_list *); 105 106 /* Function of last diagnostic message; more generally, function such that 107 if next diagnostic message is in it then we don't have to mention the 108 function name. */ 109 tree last_function; 110 111 /* Used to detect when input_file_stack has changed since last described. */ 112 int last_module; 113 114 int lock; 115}; 116 117/* Client supplied function to announce a diagnostic. */ 118#define diagnostic_starter(DC) (DC)->begin_diagnostic 119 120/* Client supplied function called after a diagnostic message is 121 displayed. */ 122#define diagnostic_finalizer(DC) (DC)->end_diagnostic 123 124/* Extension hook for client. */ 125#define diagnostic_auxiliary_data(DC) (DC)->x_data 126 127/* Same as pp_format_decoder. Works on 'diagnostic_context *'. */ 128#define diagnostic_format_decoder(DC) ((DC)->printer->format_decoder) 129 130/* Same as output_prefixing_rule. Works on 'diagnostic_context *'. */ 131#define diagnostic_prefixing_rule(DC) ((DC)->printer->wrapping.rule) 132 133/* Maximum characters per line in automatic line wrapping mode. 134 Zero means don't wrap lines. */ 135#define diagnostic_line_cutoff(DC) ((DC)->printer->wrapping.line_cutoff) 136 137#define diagnostic_flush_buffer(DC) pp_base_flush ((DC)->printer) 138 139/* True if the last function in which a diagnostic was reported is 140 different from the current one. */ 141#define diagnostic_last_function_changed(DC) \ 142 ((DC)->last_function != current_function_decl) 143 144/* Remember the current function as being the last one in which we report 145 a diagnostic. */ 146#define diagnostic_set_last_function(DC) \ 147 (DC)->last_function = current_function_decl 148 149/* True if the last module or file in which a diagnostic was reported is 150 different from the current one. */ 151#define diagnostic_last_module_changed(DC) \ 152 ((DC)->last_module != input_file_stack_tick) 153 154/* Remember the current module or file as being the last one in which we 155 report a diagnostic. */ 156#define diagnostic_set_last_module(DC) \ 157 (DC)->last_module = input_file_stack_tick 158 159/* Raise SIGABRT on any diagnostic of severity DK_ERROR or higher. */ 160#define diagnostic_abort_on_error(DC) \ 161 (DC)->abort_on_error = true 162 163/* This diagnostic_context is used by front-ends that directly output 164 diagnostic messages without going through `error', `warning', 165 and similar functions. */ 166extern diagnostic_context *global_dc; 167 168/* The total count of a KIND of diagnostics emitted so far. */ 169#define diagnostic_kind_count(DC, DK) (DC)->diagnostic_count[(int) (DK)] 170 171/* The number of errors that have been issued so far. Ideally, these 172 would take a diagnostic_context as an argument. */ 173#define errorcount diagnostic_kind_count (global_dc, DK_ERROR) 174/* Similarly, but for warnings. */ 175#define warningcount diagnostic_kind_count (global_dc, DK_WARNING) 176/* Similarly, but for sorrys. */ 177#define sorrycount diagnostic_kind_count (global_dc, DK_SORRY) 178 179/* Returns nonzero if warnings should be emitted. */ 180#define diagnostic_report_warnings_p() \ 181 (!inhibit_warnings \ 182 && !(in_system_header && !warn_system_headers)) 183 184#define report_diagnostic(D) diagnostic_report_diagnostic (global_dc, D) 185 186/* Diagnostic related functions. */ 187extern void diagnostic_initialize (diagnostic_context *); 188extern void diagnostic_report_current_module (diagnostic_context *); 189extern void diagnostic_report_current_function (diagnostic_context *); 190 191/* Force diagnostics controlled by OPTIDX to be kind KIND. */ 192extern diagnostic_t diagnostic_classify_diagnostic (diagnostic_context *, 193 int /* optidx */, 194 diagnostic_t /* kind */); 195extern void diagnostic_report_diagnostic (diagnostic_context *, 196 diagnostic_info *); 197#ifdef ATTRIBUTE_GCC_DIAG 198extern void diagnostic_set_info (diagnostic_info *, const char *, va_list *, 199 location_t, diagnostic_t) ATTRIBUTE_GCC_DIAG(2,0); 200extern void diagnostic_set_info_translated (diagnostic_info *, const char *, 201 va_list *, location_t, 202 diagnostic_t) 203 ATTRIBUTE_GCC_DIAG(2,0); 204#endif 205extern char *diagnostic_build_prefix (diagnostic_info *); 206 207/* Pure text formatting support functions. */ 208extern char *file_name_as_prefix (const char *); 209 210/* In tree-pretty-print.c */ 211extern int dump_generic_node (pretty_printer *, tree, int, int, bool); 212extern void print_generic_stmt (FILE *, tree, int); 213extern void print_generic_stmt_indented (FILE *, tree, int, int); 214extern void print_generic_expr (FILE *, tree, int); 215extern void print_generic_decl (FILE *, tree, int); 216 217extern void debug_generic_expr (tree); 218extern void debug_generic_stmt (tree); 219extern void debug_tree_chain (tree); 220extern void debug_c_tree (tree); 221#endif /* ! GCC_DIAGNOSTIC_H */ 222