186 lines
6.6 KiB
C
186 lines
6.6 KiB
C
/* Various declarations for language-independent diagnostics subroutines.
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Copyright (C) 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
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Contributed by Gabriel Dos Reis <gdr@codesourcery.com>
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 2, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING. If not, write to the Free
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Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA. */
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#ifndef GCC_DIAGNOSTIC_H
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#define GCC_DIAGNOSTIC_H
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#include "pretty-print.h"
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/* Constants used to discriminate diagnostics. */
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typedef enum
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{
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#define DEFINE_DIAGNOSTIC_KIND(K, msgid) K,
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#include "diagnostic.def"
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#undef DEFINE_DIAGNOSTIC_KIND
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DK_LAST_DIAGNOSTIC_KIND
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} diagnostic_t;
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/* A diagnostic is described by the MESSAGE to send, the FILE and LINE of
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its context and its KIND (ice, error, warning, note, ...) See complete
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list in diagnostic.def. */
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typedef struct
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{
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text_info message;
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location_t location;
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/* The kind of diagnostic it is about. */
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diagnostic_t kind;
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} diagnostic_info;
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#define pedantic_error_kind() (flag_pedantic_errors ? DK_ERROR : DK_WARNING)
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/* Forward declarations. */
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typedef struct diagnostic_context diagnostic_context;
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typedef void (*diagnostic_starter_fn) (diagnostic_context *,
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diagnostic_info *);
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typedef diagnostic_starter_fn diagnostic_finalizer_fn;
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/* This data structure bundles altogether any information relevant to
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the context of a diagnostic message. */
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struct diagnostic_context
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{
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/* Where most of the diagnostic formatting work is done. */
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pretty_printer *printer;
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/* The number of times we have issued diagnostics. */
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int diagnostic_count[DK_LAST_DIAGNOSTIC_KIND];
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/* True if we should display the "warnings are being tread as error"
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message, usually displayed once per compiler run. */
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bool warnings_are_errors_message;
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/* True if we should raise a SIGABRT on errors. */
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bool abort_on_error;
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/* This function is called before any message is printed out. It is
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responsible for preparing message prefix and such. For example, it
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might say:
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In file included from "/usr/local/include/curses.h:5:
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from "/home/gdr/src/nifty_printer.h:56:
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...
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*/
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diagnostic_starter_fn begin_diagnostic;
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/* This function is called after the diagnostic message is printed. */
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diagnostic_finalizer_fn end_diagnostic;
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/* Client hook to report an internal error. */
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void (*internal_error) (const char *, va_list *);
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/* Function of last diagnostic message; more generally, function such that
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if next diagnostic message is in it then we don't have to mention the
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function name. */
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tree last_function;
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/* Used to detect when input_file_stack has changed since last described. */
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int last_module;
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int lock;
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/* Hook for front-end extensions. */
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void *x_data;
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};
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/* Client supplied function to announce a diagnostic. */
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#define diagnostic_starter(DC) (DC)->begin_diagnostic
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/* Client supplied function called after a diagnostic message is
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displayed. */
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#define diagnostic_finalizer(DC) (DC)->end_diagnostic
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/* Extension hook for client. */
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#define diagnostic_auxiliary_data(DC) (DC)->x_data
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/* Same as pp_format_decoder. Works on 'diagnostic_context *'. */
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#define diagnostic_format_decoder(DC) ((DC)->printer->format_decoder)
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/* Same as output_prefixing_rule. Works on 'diagnostic_context *'. */
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#define diagnostic_prefixing_rule(DC) ((DC)->printer->prefixing_rule)
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/* Maximum characters per line in automatic line wrapping mode.
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Zero means don't wrap lines. */
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#define diagnostic_line_cutoff(DC) ((DC)->printer->ideal_maximum_length)
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#define diagnostic_flush_buffer(DC) pp_base_flush ((DC)->printer)
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/* True if the last function in which a diagnostic was reported is
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different from the current one. */
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#define diagnostic_last_function_changed(DC) \
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((DC)->last_function != current_function_decl)
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/* Remember the current function as being the last one in which we report
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a diagnostic. */
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#define diagnostic_set_last_function(DC) \
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(DC)->last_function = current_function_decl
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/* True if the last module or file in which a diagnostic was reported is
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different from the current one. */
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#define diagnostic_last_module_changed(DC) \
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((DC)->last_module != input_file_stack_tick)
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/* Remember the current module or file as being the last one in which we
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report a diagnostic. */
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#define diagnostic_set_last_module(DC) \
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(DC)->last_module = input_file_stack_tick
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/* Raise SIGABRT on any diagnostic of severity DK_ERROR or higher. */
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#define diagnostic_abort_on_error(DC) \
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(DC)->abort_on_error = true
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/* This diagnostic_context is used by front-ends that directly output
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diagnostic messages without going through `error', `warning',
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and similar functions. */
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extern diagnostic_context *global_dc;
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/* The total count of a KIND of diagnostics emitted so far. */
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#define diagnostic_kind_count(DC, DK) (DC)->diagnostic_count[(int) (DK)]
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/* The number of errors that have been issued so far. Ideally, these
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would take a diagnostic_context as an argument. */
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#define errorcount diagnostic_kind_count (global_dc, DK_ERROR)
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/* Similarly, but for warnings. */
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#define warningcount diagnostic_kind_count (global_dc, DK_WARNING)
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/* Similarly, but for sorrys. */
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#define sorrycount diagnostic_kind_count (global_dc, DK_SORRY)
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/* Returns nonzero if warnings should be emitted. */
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#define diagnostic_report_warnings_p() \
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(!inhibit_warnings \
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&& !(in_system_header && !warn_system_headers))
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#define report_diagnostic(D) diagnostic_report_diagnostic (global_dc, D)
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/* Diagnostic related functions. */
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extern void diagnostic_initialize (diagnostic_context *);
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extern void diagnostic_report_current_module (diagnostic_context *);
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extern void diagnostic_report_current_function (diagnostic_context *);
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extern void diagnostic_report_diagnostic (diagnostic_context *,
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diagnostic_info *);
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extern void diagnostic_set_info (diagnostic_info *, const char *, va_list *,
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location_t, diagnostic_t);
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extern char *diagnostic_build_prefix (diagnostic_info *);
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/* Pure text formatting support functions. */
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extern void verbatim (const char *, ...);
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extern char *file_name_as_prefix (const char *);
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#endif /* ! GCC_DIAGNOSTIC_H */
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