1 /* Various declarations for language-independent diagnostics subroutines.
2 Copyright (C) 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
3 Contributed by Gabriel Dos Reis <gdr@codesourcery.com>
5 This file is part of GCC.
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 2, or (at your option) any later
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
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING. If not, write to the Free
19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
22 #ifndef GCC_DIAGNOSTIC_H
23 #define GCC_DIAGNOSTIC_H
25 #include "pretty-print.h"
27 /* Constants used to discriminate diagnostics. */
30 #define DEFINE_DIAGNOSTIC_KIND(K, msgid) K,
31 #include "diagnostic.def"
32 #undef DEFINE_DIAGNOSTIC_KIND
33 DK_LAST_DIAGNOSTIC_KIND
36 /* A diagnostic is described by the MESSAGE to send, the FILE and LINE of
37 its context and its KIND (ice, error, warning, note, ...) See complete
38 list in diagnostic.def. */
43 /* The kind of diagnostic it is about. */
47 #define pedantic_error_kind() (flag_pedantic_errors ? DK_ERROR : DK_WARNING)
50 /* Forward declarations. */
51 typedef struct diagnostic_context diagnostic_context;
52 typedef void (*diagnostic_starter_fn) (diagnostic_context *,
54 typedef diagnostic_starter_fn diagnostic_finalizer_fn;
56 /* This data structure bundles altogether any information relevant to
57 the context of a diagnostic message. */
58 struct diagnostic_context
60 /* Where most of the diagnostic formatting work is done. */
61 pretty_printer *printer;
63 /* The number of times we have issued diagnostics. */
64 int diagnostic_count[DK_LAST_DIAGNOSTIC_KIND];
66 /* True if we should display the "warnings are being tread as error"
67 message, usually displayed once per compiler run. */
68 bool warnings_are_errors_message;
70 /* True if we should raise a SIGABRT on errors. */
73 /* This function is called before any message is printed out. It is
74 responsible for preparing message prefix and such. For example, it
76 In file included from "/usr/local/include/curses.h:5:
77 from "/home/gdr/src/nifty_printer.h:56:
80 diagnostic_starter_fn begin_diagnostic;
82 /* This function is called after the diagnostic message is printed. */
83 diagnostic_finalizer_fn end_diagnostic;
85 /* Client hook to report an internal error. */
86 void (*internal_error) (const char *, va_list *);
88 /* Function of last diagnostic message; more generally, function such that
89 if next diagnostic message is in it then we don't have to mention the
93 /* Used to detect when input_file_stack has changed since last described. */
98 /* Hook for front-end extensions. */
102 /* Client supplied function to announce a diagnostic. */
103 #define diagnostic_starter(DC) (DC)->begin_diagnostic
105 /* Client supplied function called after a diagnostic message is
107 #define diagnostic_finalizer(DC) (DC)->end_diagnostic
109 /* Extension hook for client. */
110 #define diagnostic_auxiliary_data(DC) (DC)->x_data
112 /* Same as pp_format_decoder. Works on 'diagnostic_context *'. */
113 #define diagnostic_format_decoder(DC) ((DC)->printer->format_decoder)
115 /* Same as output_prefixing_rule. Works on 'diagnostic_context *'. */
116 #define diagnostic_prefixing_rule(DC) ((DC)->printer->prefixing_rule)
118 /* Maximum characters per line in automatic line wrapping mode.
119 Zero means don't wrap lines. */
120 #define diagnostic_line_cutoff(DC) ((DC)->printer->ideal_maximum_length)
122 #define diagnostic_flush_buffer(DC) pp_base_flush ((DC)->printer)
124 /* True if the last function in which a diagnostic was reported is
125 different from the current one. */
126 #define diagnostic_last_function_changed(DC) \
127 ((DC)->last_function != current_function_decl)
129 /* Remember the current function as being the last one in which we report
131 #define diagnostic_set_last_function(DC) \
132 (DC)->last_function = current_function_decl
134 /* True if the last module or file in which a diagnostic was reported is
135 different from the current one. */
136 #define diagnostic_last_module_changed(DC) \
137 ((DC)->last_module != input_file_stack_tick)
139 /* Remember the current module or file as being the last one in which we
140 report a diagnostic. */
141 #define diagnostic_set_last_module(DC) \
142 (DC)->last_module = input_file_stack_tick
144 /* Raise SIGABRT on any diagnostic of severity DK_ERROR or higher. */
145 #define diagnostic_abort_on_error(DC) \
146 (DC)->abort_on_error = true
148 /* This diagnostic_context is used by front-ends that directly output
149 diagnostic messages without going through `error', `warning',
150 and similar functions. */
151 extern diagnostic_context *global_dc;
153 /* The total count of a KIND of diagnostics emitted so far. */
154 #define diagnostic_kind_count(DC, DK) (DC)->diagnostic_count[(int) (DK)]
156 /* The number of errors that have been issued so far. Ideally, these
157 would take a diagnostic_context as an argument. */
158 #define errorcount diagnostic_kind_count (global_dc, DK_ERROR)
159 /* Similarly, but for warnings. */
160 #define warningcount diagnostic_kind_count (global_dc, DK_WARNING)
161 /* Similarly, but for sorrys. */
162 #define sorrycount diagnostic_kind_count (global_dc, DK_SORRY)
164 /* Returns nonzero if warnings should be emitted. */
165 #define diagnostic_report_warnings_p() \
167 && !(in_system_header && !warn_system_headers))
169 #define report_diagnostic(D) diagnostic_report_diagnostic (global_dc, D)
171 /* Diagnostic related functions. */
172 extern void diagnostic_initialize (diagnostic_context *);
173 extern void diagnostic_report_current_module (diagnostic_context *);
174 extern void diagnostic_report_current_function (diagnostic_context *);
175 extern void diagnostic_report_diagnostic (diagnostic_context *,
177 extern void diagnostic_set_info (diagnostic_info *, const char *, va_list *,
178 location_t, diagnostic_t);
179 extern char *diagnostic_build_prefix (diagnostic_info *);
181 /* Pure text formatting support functions. */
182 extern void verbatim (const char *, ...);
183 extern char *file_name_as_prefix (const char *);
185 #endif /* ! GCC_DIAGNOSTIC_H */