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ee3400e881
* diagnostic.c (finish_abort): New fn.
(fancy_abort, error_recursion): Use it.
* toplev.c (crash_signal): Likewise.
* diagnostic.h: Declare it.
* typeck2.c (friendly_abort): Uncount the error before handing
off to fancy_abort.
From-SVN: r37480
213 lines
8.6 KiB
C
213 lines
8.6 KiB
C
/* Various declarations for language-independent diagnostics subroutines.
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Copyright (C) 2000 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 GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License 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 GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifndef __GCC_DIAGNOSTIC_H__
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#define __GCC_DIAGNOSTIC_H__
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#include "obstack.h"
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/* Forward declarations. */
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typedef struct output_buffer output_buffer;
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typedef struct diagnostic_context diagnostic_context;
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typedef void (*diagnostic_starter_fn) PARAMS ((output_buffer *,
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diagnostic_context *));
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typedef diagnostic_starter_fn diagnostic_finalizer_fn;
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#define DIAGNOSTICS_SHOW_PREFIX_ONCE 0x0
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#define DIAGNOSTICS_SHOW_PREFIX_NEVER 0x1
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#define DIAGNOSTICS_SHOW_PREFIX_EVERY_LINE 0x2
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/* The type of front-end specific hook that formats trees into an
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output_buffer. A language specific printer returns a truth value if
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everything goes well. */
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typedef int (*printer_fn) PARAMS ((output_buffer *));
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/* This data structure encapulates an output_buffer's state. */
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typedef struct
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{
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/* The prefix for each new line. */
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const char *prefix;
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/* The real upper bound of number of characters per line, taking into
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accompt the case of a very very looong prefix. */
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int maximum_length;
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/* The ideal upper bound of number of characters per line, as suggested
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by front-end. */
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int ideal_maximum_length;
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/* Indentation count. */
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int indent_skip;
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/* Nonzero if current PREFIX was emitted at least once. */
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int emitted_prefix_p;
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/* Nonzero means one should emit a newline before outputing anything. */
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int need_newline_p;
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/* Tells how often current PREFIX should be emitted:
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o DIAGNOSTICS_SHOW_PREFIX_NEVER: never - not yet supported;
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o DIAGNOSTICS_SHOW_PREFIX_ONCE: emit current PREFIX only once;
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o DIAGNOSTICS_SHOW_PREFIX_EVERY_LINE: emit current PREFIX each time
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a physical line is started. */
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int prefixing_rule;
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/* The current char to output. Updated by front-end (*format_map) when
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it is called to report front-end printer for a specified format. */
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const char *cursor;
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/* A pointer to the variable argument-list for formatting. */
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va_list *format_args;
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} output_state;
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/* The output buffer datatype. This is best seen as an abstract datatype. */
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struct output_buffer
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{
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/* Internal data. These fields should not be accessed directly by
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front-ends. */
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/* The obstack where the text is built up. */
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struct obstack obstack;
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/* The amount of characters output so far. */
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int line_length;
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/* The current state of the buffer. */
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output_state state;
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};
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#define output_buffer_text_cursor(BUFFER) (BUFFER)->state.cursor
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#define output_buffer_format_args(BUFFER) *((BUFFER)->state.format_args)
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#define output_needs_newline(BUFFER) (BUFFER)->state.need_newline_p
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#define output_buffer_state(BUFFER) (BUFFER)->state
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#define output_indentation(BUFFER) (BUFFER)->state.indent_skip
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#define output_message_text(BUFFER) \
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((const char *) obstack_base (&(BUFFER)->obstack))
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/* This data structure bundles altogether any information relevent 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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/* The diagnostic message to output. */
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const char *message;
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/* A pointer to a variable list of the arguments necessary for the
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purpose of message formatting. */
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va_list *args_ptr;
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/* The name of the source file involved in the diiagnostic. */
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const char *file;
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/* The line-location in the source file. */
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int line;
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/* Is it message a warning? */
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int warn;
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/* This function is called before any message is printed out. It is
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respondible 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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void (*begin_diagnostic) PARAMS ((output_buffer *, diagnostic_context *));
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/* This function is called after the diagnostic message is printed. */
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void (*end_diagnostic) PARAMS ((output_buffer *, diagnostic_context *));
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/* Hook for front-end extensions. */
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void *x_data;
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};
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#define diagnostic_message(DC) (DC)->message
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#define diagnostic_argument_list(DC) (DC)->args_ptr
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#define diagnostic_file_location(DC) (DC)->file
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#define diagnostic_line_location(DC) (DC)->line
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#define diagnostic_is_warning(DC) (DC)->warn
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#define diagnostic_starter(DC) (DC)->begin_diagnostic
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#define diagnostic_finalizer(DC) (DC)->end_diagnostic
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#define diagnostic_auxiliary_data(DC) (DC)->x_data
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/* If non-NULL, this function formats data in the BUFFER. When called,
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output_buffer_text_cursor (BUFFER) points to a format code. LANG_PRINTER
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should call output_add_string (and related functions) to add data to
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the BUFFER. LANG_PRINTER can read arguments from
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output_buffer_format_args (BUFFER) using VA_ARG. If the BUFFER needs
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additional characters from the format string, it should advance
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the output_buffer_text_cursor (BUFFER) as it goes. When LANG_PRINTER
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returns, output_buffer_text_cursor (BUFFER) should point to the last
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character processed. */
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extern printer_fn lang_printer;
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extern diagnostic_starter_fn lang_diagnostic_starter;
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extern diagnostic_finalizer_fn lang_diagnostic_finalizer;
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extern int diagnostic_message_length_per_line;
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/* This output buffer is used by front-ends that directly output
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diagnostic messages without going through `error', `warning',
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and simillar functions. In general, such usage should be
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avoided. This global buffer will go away, once all such usage
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has been removed. */
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extern output_buffer *diagnostic_buffer;
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/* Prototypes */
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void set_diagnostic_context PARAMS ((diagnostic_context *, const char *,
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va_list *, const char *, int, int));
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void set_fatal_function PARAMS ((void (*) PARAMS ((const char *,
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va_list *))));
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void report_diagnostic PARAMS ((diagnostic_context *));
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void initialize_diagnostics PARAMS ((void));
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void reshape_diagnostic_buffer PARAMS ((void));
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void default_initialize_buffer PARAMS ((output_buffer *));
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void init_output_buffer PARAMS ((output_buffer *, const char *, int));
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void flush_diagnostic_buffer PARAMS ((void));
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void output_clear PARAMS ((output_buffer *));
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const char *output_get_prefix PARAMS ((const output_buffer *));
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const char *output_last_position PARAMS ((const output_buffer *));
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void output_set_prefix PARAMS ((output_buffer *, const char *));
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void output_destroy_prefix PARAMS ((output_buffer *));
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void output_set_maximum_length PARAMS ((output_buffer *, int));
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void output_emit_prefix PARAMS ((output_buffer *));
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void output_add_newline PARAMS ((output_buffer *));
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void output_add_space PARAMS ((output_buffer *));
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int output_space_left PARAMS ((const output_buffer *));
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void output_append PARAMS ((output_buffer *, const char *,
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const char *));
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void output_add_character PARAMS ((output_buffer *, int));
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void output_decimal PARAMS ((output_buffer *, int));
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void output_add_string PARAMS ((output_buffer *, const char *));
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const char *output_finalize_message PARAMS ((output_buffer *));
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void output_clear_message_text PARAMS ((output_buffer *));
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void output_printf PARAMS ((output_buffer *, const char *,
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...)) ATTRIBUTE_PRINTF_2;
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int output_is_line_wrapping PARAMS ((output_buffer *));
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void set_message_prefixing_rule PARAMS ((int));
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void output_verbatim PARAMS ((output_buffer *, const char *, ...))
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ATTRIBUTE_PRINTF_2;
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void verbatim PARAMS ((const char *, ...)) ATTRIBUTE_PRINTF_1;
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char *context_as_prefix PARAMS ((const char *, int, int));
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char *file_name_as_prefix PARAMS ((const char *));
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int error_module_changed PARAMS ((void));
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void record_last_error_module PARAMS ((void));
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int error_function_changed PARAMS ((void));
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void record_last_error_function PARAMS ((void));
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void report_problematic_module PARAMS ((output_buffer *));
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void finish_abort PARAMS ((void)) ATTRIBUTE_NORETURN;
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#endif /* __GCC_DIAGNOSTIC_H__ */
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