1 /* Various declarations for language-independent diagnostics subroutines.
2 Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005
3 Free Software Foundation, Inc.
4 Contributed by Gabriel Dos Reis <gdr@codesourcery.com>
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 2, or (at your option) any later
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING. If not, write to the Free
20 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
23 #ifndef GCC_DIAGNOSTIC_H
24 #define GCC_DIAGNOSTIC_H
26 #include "pretty-print.h"
28 /* Constants used to discriminate diagnostics. */
31 #define DEFINE_DIAGNOSTIC_KIND(K, msgid) K,
32 #include "diagnostic.def"
33 #undef DEFINE_DIAGNOSTIC_KIND
34 DK_LAST_DIAGNOSTIC_KIND
37 /* A diagnostic is described by the MESSAGE to send, the FILE and LINE of
38 its context and its KIND (ice, error, warning, note, ...) See complete
39 list in diagnostic.def. */
44 /* The kind of diagnostic it is about. */
46 /* Which OPT_* directly controls this diagnostic. */
50 #define pedantic_error_kind() (flag_pedantic_errors ? DK_ERROR : DK_WARNING)
53 /* Forward declarations. */
54 typedef struct diagnostic_context diagnostic_context;
55 typedef void (*diagnostic_starter_fn) (diagnostic_context *,
57 typedef diagnostic_starter_fn diagnostic_finalizer_fn;
59 /* This data structure bundles altogether any information relevant to
60 the context of a diagnostic message. */
61 struct diagnostic_context
63 /* Where most of the diagnostic formatting work is done. */
64 pretty_printer *printer;
66 /* The number of times we have issued diagnostics. */
67 int diagnostic_count[DK_LAST_DIAGNOSTIC_KIND];
69 /* True if we should display the "warnings are being tread as error"
70 message, usually displayed once per compiler run. */
71 bool issue_warnings_are_errors_message;
73 /* True if it has been requested that warnings be treated as errors. */
74 bool warning_as_error_requested;
76 /* True if we should raise a SIGABRT on errors. */
79 /* This function is called before any message is printed out. It is
80 responsible for preparing message prefix and such. For example, it
82 In file included from "/usr/local/include/curses.h:5:
83 from "/home/gdr/src/nifty_printer.h:56:
86 diagnostic_starter_fn begin_diagnostic;
88 /* This function is called after the diagnostic message is printed. */
89 diagnostic_finalizer_fn end_diagnostic;
91 /* Client hook to report an internal error. */
92 void (*internal_error) (const char *, va_list *);
94 /* Function of last diagnostic message; more generally, function such that
95 if next diagnostic message is in it then we don't have to mention the
99 /* Used to detect when input_file_stack has changed since last described. */
105 /* Client supplied function to announce a diagnostic. */
106 #define diagnostic_starter(DC) (DC)->begin_diagnostic
108 /* Client supplied function called after a diagnostic message is
110 #define diagnostic_finalizer(DC) (DC)->end_diagnostic
112 /* Extension hook for client. */
113 #define diagnostic_auxiliary_data(DC) (DC)->x_data
115 /* Same as pp_format_decoder. Works on 'diagnostic_context *'. */
116 #define diagnostic_format_decoder(DC) ((DC)->printer->format_decoder)
118 /* Same as output_prefixing_rule. Works on 'diagnostic_context *'. */
119 #define diagnostic_prefixing_rule(DC) ((DC)->printer->prefixing_rule)
121 /* Maximum characters per line in automatic line wrapping mode.
122 Zero means don't wrap lines. */
123 #define diagnostic_line_cutoff(DC) ((DC)->printer->ideal_maximum_length)
125 #define diagnostic_flush_buffer(DC) pp_base_flush ((DC)->printer)
127 /* True if the last function in which a diagnostic was reported is
128 different from the current one. */
129 #define diagnostic_last_function_changed(DC) \
130 ((DC)->last_function != current_function_decl)
132 /* Remember the current function as being the last one in which we report
134 #define diagnostic_set_last_function(DC) \
135 (DC)->last_function = current_function_decl
137 /* True if the last module or file in which a diagnostic was reported is
138 different from the current one. */
139 #define diagnostic_last_module_changed(DC) \
140 ((DC)->last_module != input_file_stack_tick)
142 /* Remember the current module or file as being the last one in which we
143 report a diagnostic. */
144 #define diagnostic_set_last_module(DC) \
145 (DC)->last_module = input_file_stack_tick
147 /* Raise SIGABRT on any diagnostic of severity DK_ERROR or higher. */
148 #define diagnostic_abort_on_error(DC) \
149 (DC)->abort_on_error = true
151 /* This diagnostic_context is used by front-ends that directly output
152 diagnostic messages without going through `error', `warning',
153 and similar functions. */
154 extern diagnostic_context *global_dc;
156 /* The total count of a KIND of diagnostics emitted so far. */
157 #define diagnostic_kind_count(DC, DK) (DC)->diagnostic_count[(int) (DK)]
159 /* The number of errors that have been issued so far. Ideally, these
160 would take a diagnostic_context as an argument. */
161 #define errorcount diagnostic_kind_count (global_dc, DK_ERROR)
162 /* Similarly, but for warnings. */
163 #define warningcount diagnostic_kind_count (global_dc, DK_WARNING)
164 /* Similarly, but for sorrys. */
165 #define sorrycount diagnostic_kind_count (global_dc, DK_SORRY)
167 /* Returns nonzero if warnings should be emitted. */
168 #define diagnostic_report_warnings_p() \
170 && !(in_system_header && !warn_system_headers))
172 #define report_diagnostic(D) diagnostic_report_diagnostic (global_dc, D)
174 /* Diagnostic related functions. */
175 extern void diagnostic_initialize (diagnostic_context *);
176 extern void diagnostic_report_current_module (diagnostic_context *);
177 extern void diagnostic_report_current_function (diagnostic_context *);
178 extern void diagnostic_report_diagnostic (diagnostic_context *,
180 extern void diagnostic_set_info (diagnostic_info *, const char *, va_list *,
181 location_t, diagnostic_t);
182 extern char *diagnostic_build_prefix (diagnostic_info *);
184 /* Pure text formatting support functions. */
185 extern void verbatim (const char *, ...);
186 extern char *file_name_as_prefix (const char *);
188 /* In tree-pretty-print.c */
189 extern int dump_generic_node (pretty_printer *, tree, int, int, bool);
190 extern void print_generic_stmt (FILE *, tree, int);
191 extern void print_generic_stmt_indented (FILE *, tree, int, int);
192 extern void print_generic_expr (FILE *, tree, int);
193 extern void print_generic_decl (FILE *, tree, int);
195 extern void debug_generic_expr (tree);
196 extern void debug_generic_stmt (tree);
197 extern void debug_c_tree (tree);
198 #endif /* ! GCC_DIAGNOSTIC_H */