134 lines
5.6 KiB
C
134 lines
5.6 KiB
C
/* Various declarations for language-independent diagnostics subroutines.
|
|
Copyright (C) 2000 Free Software Foundation, Inc.
|
|
Contributed by Gabriel Dos Reis <gdr@codesourcery.com>
|
|
|
|
This file is part of GNU CC.
|
|
|
|
GNU CC is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2, or (at your option)
|
|
any later version.
|
|
|
|
GNU CC is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with GNU CC; see the file COPYING. If not, write to
|
|
the Free Software Foundation, 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
#ifndef __GCC_DIAGNOSTIC_H__
|
|
#define __GCC_DIAGNOSTIC_H__
|
|
|
|
#include "obstack.h"
|
|
|
|
/* Forward declarations. */
|
|
typedef struct output_buffer output_buffer;
|
|
|
|
#define DIAGNOSTICS_SHOW_PREFIX_ONCE 0x0
|
|
#define DIAGNOSTICS_SHOW_PREFIX_NEVER 0x1
|
|
#define DIAGNOSTICS_SHOW_PREFIX_EVERY_LINE 0x2
|
|
|
|
/* The type of front-end specific hook that formats trees into an
|
|
output_buffer. A language specific printer returns a truth value if
|
|
everything goes well. */
|
|
typedef int (*printer_fn) PARAMS ((output_buffer *));
|
|
|
|
/* This data structure encapulates an output_buffer's state. */
|
|
typedef struct
|
|
{
|
|
/* The prefix for each new line. */
|
|
const char *prefix;
|
|
/* The real upper bound of number of characters per line, taking into
|
|
accompt the case of a very very looong prefix. */
|
|
int maximum_length;
|
|
/* The ideal upper bound of number of characters per line, as suggested
|
|
by front-end. */
|
|
int ideal_maximum_length;
|
|
/* Nonzero if current PREFIX was emitted at least once. */
|
|
int emitted_prefix_p;
|
|
/* Tells how often current PREFIX should be emitted:
|
|
o DIAGNOSTICS_SHOW_PREFIX_NEVER: never - not yet supported;
|
|
o DIAGNOSTICS_SHOW_PREFIX_ONCE: emit current PREFIX only once;
|
|
o DIAGNOSTICS_SHOW_PREFIX_EVERY_LINE: emit current PREFIX each time
|
|
a physical line is started. */
|
|
int prefixing_rule;
|
|
/* The current char to output. Updated by front-end (*format_map) when
|
|
it is called to report front-end printer for a specified format. */
|
|
const char *cursor;
|
|
/* A pointer to the variable argument-list for formatting. */
|
|
va_list *format_args;
|
|
} output_state;
|
|
|
|
/* The output buffer datatype. This is best seen as an abstract datatype. */
|
|
struct output_buffer
|
|
{
|
|
/* Internal data. These fields should not be accessed directly by
|
|
front-ends. */
|
|
|
|
/* The obstack where the text is built up. */
|
|
struct obstack obstack;
|
|
/* The amount of characters output so far. */
|
|
int line_length;
|
|
/* The current state of the buffer. */
|
|
output_state state;
|
|
};
|
|
|
|
#define output_buffer_text_cursor(BUFFER) (BUFFER)->state.cursor
|
|
#define output_buffer_format_args(BUFFER) *((BUFFER)->state.format_args)
|
|
|
|
/* If non-NULL, this function formats data in the BUFFER. When called,
|
|
output_buffer_text_cursor (BUFFER) points to a format code. LANG_PRINTER
|
|
should call output_add_string (and related functions) to add data to
|
|
the BUFFER. LANG_PRINTER can read arguments from
|
|
output_buffer_format_args (BUFFER) using VA_ARG. If the BUFFER needs
|
|
additional characters from the format string, it should advance
|
|
the output_buffer_text_cursor (BUFFER) as it goes. When LANG_PRINTER
|
|
returns, output_buffer_text_cursor (BUFFER) should point to the last
|
|
character processed. */
|
|
|
|
extern printer_fn lang_printer;
|
|
|
|
extern int diagnostic_message_length_per_line;
|
|
|
|
/* This output buffer is used by front-ends that directly output
|
|
diagnostic messages without going through `error', `warning',
|
|
and simillar functions. In general, such usage should be
|
|
avoided. This global buffer will go away, once all such usage
|
|
has been removed. */
|
|
extern output_buffer *diagnostic_buffer;
|
|
|
|
/* Prototypes */
|
|
void report_diagnostic PARAMS ((const char *, va_list *,
|
|
const char *, int, int));
|
|
void initialize_diagnostics PARAMS ((void));
|
|
void reshape_diagnostic_buffer PARAMS ((void));
|
|
void default_initialize_buffer PARAMS ((output_buffer *));
|
|
void init_output_buffer PARAMS ((output_buffer *, const char *, int));
|
|
void output_clear PARAMS ((output_buffer *));
|
|
const char *output_get_prefix PARAMS ((const output_buffer *));
|
|
void output_set_prefix PARAMS ((output_buffer *, const char *));
|
|
void output_destroy_prefix PARAMS ((output_buffer *));
|
|
void output_set_maximum_length PARAMS ((output_buffer *, int));
|
|
void output_emit_prefix PARAMS ((output_buffer *));
|
|
void output_add_newline PARAMS ((output_buffer *));
|
|
void output_add_space PARAMS ((output_buffer *));
|
|
int output_space_left PARAMS ((const output_buffer *));
|
|
void output_append PARAMS ((output_buffer *, const char *,
|
|
const char *));
|
|
void output_add_character PARAMS ((output_buffer *, int));
|
|
void output_decimal PARAMS ((output_buffer *, int));
|
|
void output_add_string PARAMS ((output_buffer *, const char *));
|
|
const char *output_finish PARAMS ((output_buffer *));
|
|
void output_printf PARAMS ((output_buffer *, const char *,
|
|
...)) ATTRIBUTE_PRINTF_2;
|
|
int output_is_line_wrapping PARAMS ((output_buffer *));
|
|
void set_message_prefixing_rule PARAMS ((int));
|
|
void output_verbatim PARAMS ((output_buffer *, const char *, ...))
|
|
ATTRIBUTE_PRINTF_2;
|
|
void verbatim PARAMS ((const char *, ...)) ATTRIBUTE_PRINTF_1;
|
|
|
|
#endif /* __GCC_DIAGNOSTIC_H__ */
|