mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-14 10:09:48 +00:00
331 lines
12 KiB
C
331 lines
12 KiB
C
/* Various declarations for language-independent diagnostics subroutines.
|
|
Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc.
|
|
Contributed by Gabriel Dos Reis <gdr@codesourcery.com>
|
|
|
|
This file is part of GCC.
|
|
|
|
GCC 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.
|
|
|
|
GCC 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 GCC; 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"
|
|
#include "location.h"
|
|
|
|
/* The type of a text to be formatted according a format specification
|
|
along with a list of things. */
|
|
typedef struct
|
|
{
|
|
const char *format_spec;
|
|
va_list *args_ptr;
|
|
} text_info;
|
|
|
|
/* Contants used to discreminate diagnostics. */
|
|
typedef enum
|
|
{
|
|
#define DEFINE_DIAGNOSTIC_KIND(K, M) K,
|
|
#include "diagnostic.def"
|
|
#undef DEFINE_DIAGNOSTIC_KIND
|
|
DK_LAST_DIAGNOSTIC_KIND
|
|
} diagnostic_t;
|
|
|
|
/* A diagnostic is described by the MESSAGE to send, the FILE and LINE of
|
|
its context and its KIND (ice, error, warning, note, ...) See complete
|
|
list in diagnostic.def. */
|
|
typedef struct
|
|
{
|
|
text_info message;
|
|
location_t location;
|
|
/* The kind of diagnostic it is about. */
|
|
diagnostic_t kind;
|
|
} diagnostic_info;
|
|
|
|
#define pedantic_error_kind() (flag_pedantic_errors ? DK_ERROR : DK_WARNING)
|
|
|
|
/* How often diagnostics are prefixed by their locations:
|
|
o DIAGNOSTICS_SHOW_PREFIX_NEVER: never - not yet supported;
|
|
o DIAGNOSTICS_SHOW_PREFIX_ONCE: emit only once;
|
|
o DIAGNOSTICS_SHOW_PREFIX_EVERY_LINE: emit each time a physical
|
|
line is started. */
|
|
typedef enum
|
|
{
|
|
DIAGNOSTICS_SHOW_PREFIX_ONCE = 0x0,
|
|
DIAGNOSTICS_SHOW_PREFIX_NEVER = 0x1,
|
|
DIAGNOSTICS_SHOW_PREFIX_EVERY_LINE = 0x2
|
|
} diagnostic_prefixing_rule_t;
|
|
|
|
/* This data structure encapsulates 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
|
|
account 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;
|
|
|
|
/* Indentation count. */
|
|
int indent_skip;
|
|
|
|
/* Nonzero if current PREFIX was emitted at least once. */
|
|
bool emitted_prefix_p;
|
|
|
|
/* Nonzero means one should emit a newline before outputing anything. */
|
|
bool need_newline_p;
|
|
|
|
/* Current prefixing rule. */
|
|
diagnostic_prefixing_rule_t prefixing_rule;
|
|
} output_state;
|
|
|
|
/* The type of a hook that formats client-specific data (trees mostly) into
|
|
an output_buffer. A client-supplied formatter returns true if everything
|
|
goes well. */
|
|
typedef struct output_buffer output_buffer;
|
|
typedef bool (*printer_fn) PARAMS ((output_buffer *, text_info *));
|
|
|
|
/* The output buffer datatype. This is best seen as an abstract datatype
|
|
whose fields should not be accessed directly by clients. */
|
|
struct output_buffer
|
|
{
|
|
/* The current state of the buffer. */
|
|
output_state state;
|
|
|
|
/* Where to output formatted text. */
|
|
FILE* stream;
|
|
|
|
/* The obstack where the text is built up. */
|
|
struct obstack obstack;
|
|
|
|
/* The amount of characters output so far. */
|
|
int line_length;
|
|
|
|
/* This must be large enough to hold any printed integer or
|
|
floating-point value. */
|
|
char digit_buffer[128];
|
|
|
|
/* If non-NULL, this function formats a TEXT into the BUFFER. When called,
|
|
TEXT->format_spec points to a format code. FORMAT_DECODER should call
|
|
output_add_string (and related functions) to add data to the BUFFER.
|
|
FORMAT_DECODER can read arguments from *TEXT->args_pts using VA_ARG.
|
|
If the BUFFER needs additional characters from the format string, it
|
|
should advance the TEXT->format_spec as it goes. When FORMAT_DECODER
|
|
returns, TEXT->format_spec should point to the last character processed.
|
|
*/
|
|
printer_fn format_decoder;
|
|
} ;
|
|
|
|
#define output_prefix(BUFFER) (BUFFER)->state.prefix
|
|
|
|
/* The stream attached to the output_buffer, where the formatted
|
|
diagnostics will ultimately go. Works only on `output_buffer *'. */
|
|
#define output_buffer_attached_stream(BUFFER) (BUFFER)->stream
|
|
|
|
/* In line-wrapping mode, whether we should start a new line. */
|
|
#define output_needs_newline(BUFFER) (BUFFER)->state.need_newline_p
|
|
|
|
/* The amount of whitespace to be emitted when starting a new line. */
|
|
#define output_indentation(BUFFER) (BUFFER)->state.indent_skip
|
|
|
|
/* A pointer to the formatted diagnostic message. */
|
|
#define output_message_text(BUFFER) \
|
|
((const char *) obstack_base (&(BUFFER)->obstack))
|
|
|
|
/* Client supplied function used to decode formats. */
|
|
#define output_format_decoder(BUFFER) (BUFFER)->format_decoder
|
|
|
|
/* Prefixing rule used in formatting a diagnostic message. */
|
|
#define output_prefixing_rule(BUFFER) (BUFFER)->state.prefixing_rule
|
|
|
|
/* Maximum characters per line in automatic line wrapping mode.
|
|
Zero means don't wrap lines. */
|
|
#define output_line_cutoff(BUFFER) (BUFFER)->state.ideal_maximum_length
|
|
|
|
/* True if BUFFER is in line-wrapping mode. */
|
|
#define output_is_line_wrapping(BUFFER) (output_line_cutoff (BUFFER) > 0)
|
|
|
|
#define output_formatted_scalar(BUFFER, FORMAT, INTEGER) \
|
|
do \
|
|
{ \
|
|
sprintf ((BUFFER)->digit_buffer, FORMAT, INTEGER); \
|
|
output_add_string (BUFFER, (BUFFER)->digit_buffer); \
|
|
} \
|
|
while (0)
|
|
|
|
/* Forward declarations. */
|
|
typedef struct diagnostic_context diagnostic_context;
|
|
typedef void (*diagnostic_starter_fn) PARAMS ((diagnostic_context *,
|
|
diagnostic_info *));
|
|
typedef diagnostic_starter_fn diagnostic_finalizer_fn;
|
|
|
|
/* This data structure bundles altogether any information relevant to
|
|
the context of a diagnostic message. */
|
|
struct diagnostic_context
|
|
{
|
|
/* Where most of the diagnostic formatting work is done. In Object
|
|
Oriented terms, we'll say that diagnostic_context is a sub-class of
|
|
output_buffer. */
|
|
output_buffer buffer;
|
|
|
|
/* The number of times we have issued diagnostics. */
|
|
int diagnostic_count[DK_LAST_DIAGNOSTIC_KIND];
|
|
|
|
/* True if we should display the "warnings are being tread as error"
|
|
message, usually displayed once per compiler run. */
|
|
bool warnings_are_errors_message;
|
|
|
|
/* This function is called before any message is printed out. It is
|
|
responsible for preparing message prefix and such. For example, it
|
|
might say:
|
|
In file included from "/usr/local/include/curses.h:5:
|
|
from "/home/gdr/src/nifty_printer.h:56:
|
|
...
|
|
*/
|
|
diagnostic_starter_fn begin_diagnostic;
|
|
|
|
/* This function is called after the diagnostic message is printed. */
|
|
diagnostic_finalizer_fn end_diagnostic;
|
|
|
|
/* Client hook to report an internal error. */
|
|
void (*internal_error) PARAMS ((const char *, va_list *));
|
|
|
|
/* Function of last diagnostic message; more generally, function such that
|
|
if next diagnostic message is in it then we don't have to mention the
|
|
function name. */
|
|
tree last_function;
|
|
|
|
/* Used to detect when input_file_stack has changed since last described. */
|
|
int last_module;
|
|
|
|
int lock;
|
|
|
|
/* Hook for front-end extensions. */
|
|
void *x_data;
|
|
};
|
|
|
|
/* Client supplied function to announce a diagnostic. */
|
|
#define diagnostic_starter(DC) (DC)->begin_diagnostic
|
|
|
|
/* Client supplied function called after a diagnostic message is
|
|
displayed. */
|
|
#define diagnostic_finalizer(DC) (DC)->end_diagnostic
|
|
|
|
/* Extension hook for client. */
|
|
#define diagnostic_auxiliary_data(DC) (DC)->x_data
|
|
|
|
/* Same as output_format_decoder. Works on 'diagnostic_context *'. */
|
|
#define diagnostic_format_decoder(DC) output_format_decoder (&(DC)->buffer)
|
|
|
|
/* Same as output_prefixing_rule. Works on 'diagnostic_context *'. */
|
|
#define diagnostic_prefixing_rule(DC) output_prefixing_rule (&(DC)->buffer)
|
|
|
|
/* Maximum characters per line in automatic line wrapping mode.
|
|
Zero means don't wrap lines. */
|
|
#define diagnostic_line_cutoff(DC) output_line_cutoff (&(DC)->buffer)
|
|
|
|
/* True if the last function in which a diagnostic was reported is
|
|
different from the current one. */
|
|
#define diagnostic_last_function_changed(DC) \
|
|
((DC)->last_function != current_function_decl)
|
|
|
|
/* Remember the current function as being the last one in which we report
|
|
a diagnostic. */
|
|
#define diagnostic_set_last_function(DC) \
|
|
(DC)->last_function = current_function_decl
|
|
|
|
/* True if the last module or file in which a diagnostic was reported is
|
|
different from the current one. */
|
|
#define diagnostic_last_module_changed(DC) \
|
|
((DC)->last_module != input_file_stack_tick)
|
|
|
|
/* Remember the current module or file as being the last one in which we
|
|
report a diagnostic. */
|
|
#define diagnostic_set_last_module(DC) \
|
|
(DC)->last_module = input_file_stack_tick
|
|
|
|
/* This diagnostic_context is used by front-ends that directly output
|
|
diagnostic messages without going through `error', `warning',
|
|
and similar functions. */
|
|
extern diagnostic_context *global_dc;
|
|
|
|
/* The total count of a KIND of diagnostics meitted so far. */
|
|
#define diagnostic_kind_count(DC, DK) (DC)->diagnostic_count[(int) (DK)]
|
|
|
|
/* The number of errors that have been issued so far. Ideally, these
|
|
would take a diagnostic_context as an argument. */
|
|
#define errorcount diagnostic_kind_count (global_dc, DK_ERROR)
|
|
/* Similarly, but for warnings. */
|
|
#define warningcount diagnostic_kind_count (global_dc, DK_WARNING)
|
|
/* Similarly, but for sorrys. */
|
|
#define sorrycount diagnostic_kind_count (global_dc, DK_SORRY)
|
|
|
|
/* Returns nonzero if warnings should be emitted. */
|
|
#define diagnostic_report_warnings_p() \
|
|
(!inhibit_warnings \
|
|
&& !(in_system_header && !warn_system_headers))
|
|
|
|
#define report_diagnostic(D) diagnostic_report_diagnostic (global_dc, D)
|
|
|
|
/* Dignostic related functions. */
|
|
extern void diagnostic_initialize PARAMS ((diagnostic_context *));
|
|
extern void diagnostic_report_current_module PARAMS ((diagnostic_context *));
|
|
extern void diagnostic_report_current_function PARAMS ((diagnostic_context *));
|
|
extern void diagnostic_flush_buffer PARAMS ((diagnostic_context *));
|
|
extern bool diagnostic_count_diagnostic PARAMS ((diagnostic_context *,
|
|
diagnostic_t));
|
|
extern void diagnostic_report_diagnostic PARAMS ((diagnostic_context *,
|
|
diagnostic_info *));
|
|
extern void diagnostic_set_info PARAMS ((diagnostic_info *,
|
|
const char *, va_list *,
|
|
const char *, int,
|
|
diagnostic_t));
|
|
extern char *diagnostic_build_prefix PARAMS ((diagnostic_info *));
|
|
|
|
/* Pure text formatting support functions. */
|
|
extern void init_output_buffer PARAMS ((output_buffer *,
|
|
const char *, int));
|
|
extern void output_clear PARAMS ((output_buffer *));
|
|
extern const char *output_last_position PARAMS ((const output_buffer *));
|
|
extern void output_set_prefix PARAMS ((output_buffer *,
|
|
const char *));
|
|
extern void output_destroy_prefix PARAMS ((output_buffer *));
|
|
extern void output_set_maximum_length PARAMS ((output_buffer *, int));
|
|
extern void output_emit_prefix PARAMS ((output_buffer *));
|
|
extern void output_add_newline PARAMS ((output_buffer *));
|
|
extern void output_add_space PARAMS ((output_buffer *));
|
|
extern int output_space_left PARAMS ((const output_buffer *));
|
|
extern void output_append PARAMS ((output_buffer *, const char *,
|
|
const char *));
|
|
extern void output_add_character PARAMS ((output_buffer *, int));
|
|
extern void output_decimal PARAMS ((output_buffer *, int));
|
|
extern void output_add_string PARAMS ((output_buffer *,
|
|
const char *));
|
|
extern void output_add_identifier PARAMS ((output_buffer *, tree));
|
|
extern const char *output_finalize_message PARAMS ((output_buffer *));
|
|
extern void output_clear_message_text PARAMS ((output_buffer *));
|
|
extern void output_printf PARAMS ((output_buffer *, const char *,
|
|
...)) ATTRIBUTE_PRINTF_2;
|
|
extern void output_verbatim PARAMS ((output_buffer *, const char *,
|
|
...));
|
|
extern void verbatim PARAMS ((const char *, ...));
|
|
extern char *file_name_as_prefix PARAMS ((const char *));
|
|
extern void inform PARAMS ((const char *, ...));
|
|
|
|
#endif /* ! GCC_DIAGNOSTIC_H */
|