mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-26 11:47:31 +00:00
262 lines
10 KiB
C
262 lines
10 KiB
C
/* Various declarations for language-independent pretty-print subroutines.
|
|
Copyright (C) 2002, 2003 Free Software Foundation, Inc.
|
|
Contributed by Gabriel Dos Reis <gdr@integrable-solutions.net>
|
|
|
|
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_PRETTY_PRINT_H
|
|
#define GCC_PRETTY_PRINT_H
|
|
|
|
#include "obstack.h"
|
|
#include "input.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;
|
|
int err_no; /* for %m */
|
|
} text_info;
|
|
|
|
/* 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;
|
|
|
|
/* The output buffer datatype. This is best seen as an abstract datatype
|
|
whose fields should not be accessed directly by clients. */
|
|
typedef struct
|
|
{
|
|
/* The obstack where the text is built up. */
|
|
struct obstack obstack;
|
|
|
|
/* Where to output formatted text. */
|
|
FILE *stream;
|
|
|
|
/* 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];
|
|
} output_buffer;
|
|
|
|
/* The type of pretty-printer flags passed to clients. */
|
|
typedef unsigned int pp_flags;
|
|
|
|
typedef enum
|
|
{
|
|
pp_none, pp_before, pp_after
|
|
} pp_padding;
|
|
|
|
/* The type of a hook that formats client-specific data onto a pretty_pinter.
|
|
A client-supplied formatter returns true if everything goes well,
|
|
otherwise it returns false. */
|
|
typedef struct pretty_print_info pretty_printer;
|
|
typedef bool (*printer_fn) (pretty_printer *, text_info *);
|
|
|
|
/* Client supplied function used to decode formats. */
|
|
#define pp_format_decoder(PP) pp_base (PP)->format_decoder
|
|
|
|
/* TRUE if a newline character needs to be added before further
|
|
formatting. */
|
|
#define pp_needs_newline(PP) pp_base (PP)->need_newline
|
|
|
|
/* Maximum characters per line in automatic line wrapping mode.
|
|
Zero means don't wrap lines. */
|
|
#define pp_line_cutoff(PP) pp_base (PP)->ideal_maximum_length
|
|
|
|
/* True if PRETTY-PTINTER is in line-wrapping mode. */
|
|
#define pp_is_wrapping_line(PP) (pp_line_cutoff (PP) > 0)
|
|
|
|
/* Prefixing rule used in formatting a diagnostic message. */
|
|
#define pp_prefixing_rule(PP) pp_base (PP)->prefixing_rule
|
|
|
|
/* The amount of whitespace to be emitted when starting a new line. */
|
|
#define pp_indentation(PP) pp_base (PP)->indent_skip
|
|
|
|
/* The data structure that contains the bare minimum required to do
|
|
proper pretty-printing. Clients may derived from this structure
|
|
and add additional fields they need. */
|
|
struct pretty_print_info
|
|
{
|
|
/* Where we print external representation of ENTITY. */
|
|
output_buffer *buffer;
|
|
|
|
/* The prefix for each new line. */
|
|
const char *prefix;
|
|
|
|
/* Where to put whitespace around the entity being formatted. */
|
|
pp_padding padding;
|
|
|
|
/* 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;
|
|
|
|
/* Current prefixing rule. */
|
|
diagnostic_prefixing_rule_t prefixing_rule;
|
|
|
|
/* 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
|
|
pp_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;
|
|
|
|
/* Nonzero if current PREFIX was emitted at least once. */
|
|
bool emitted_prefix;
|
|
|
|
/* Nonzero means one should emit a newline before outputting anything. */
|
|
bool need_newline;
|
|
};
|
|
|
|
#define pp_set_line_maximum_length(PP, L) \
|
|
pp_base_set_line_maximum_length (pp_base (PP), L)
|
|
#define pp_set_prefix(PP, P) pp_base_set_prefix (pp_base (PP), P)
|
|
#define pp_destroy_prefix(PP) pp_base_destroy_prefix (pp_base (PP))
|
|
#define pp_remaining_character_count_for_line(PP) \
|
|
pp_base_remaining_character_count_for_line (pp_base (PP))
|
|
#define pp_clear_output_area(PP) \
|
|
pp_base_clear_output_area (pp_base (PP))
|
|
#define pp_formatted_text(PP) pp_base_formatted_text (pp_base (PP))
|
|
#define pp_last_position_in_text(PP) \
|
|
pp_base_last_position_in_text (pp_base (PP))
|
|
#define pp_emit_prefix(PP) pp_base_emit_prefix (pp_base (PP))
|
|
#define pp_append_text(PP, B, E) \
|
|
pp_base_append_text (pp_base (PP), B, E)
|
|
#define pp_flush(PP) pp_base_flush (pp_base (PP))
|
|
#define pp_format_text(PP, TI) pp_base_format_text (pp_base (PP), TI)
|
|
#define pp_format_verbatim(PP, TI) \
|
|
pp_base_format_verbatim (pp_base (PP), TI)
|
|
|
|
#define pp_character(PP, C) pp_base_character (pp_base (PP), C)
|
|
#define pp_string(PP, S) pp_base_string (pp_base (PP), S)
|
|
#define pp_newline(PP) pp_base_newline (pp_base (PP))
|
|
|
|
#define pp_space(PP) pp_character (PP, ' ')
|
|
#define pp_left_paren(PP) pp_character (PP, '(')
|
|
#define pp_right_paren(PP) pp_character (PP, ')')
|
|
#define pp_left_bracket(PP) pp_character (PP, '[')
|
|
#define pp_right_bracket(PP) pp_character (PP, ']')
|
|
#define pp_left_brace(PP) pp_character (PP, '{')
|
|
#define pp_right_brace(PP) pp_character (PP, '}')
|
|
#define pp_semicolon(PP) pp_character (PP, ';')
|
|
#define pp_comma(PP) pp_string (PP, ", ")
|
|
#define pp_dot(PP) pp_character (PP, '.')
|
|
#define pp_colon(PP) pp_character (PP, ':')
|
|
#define pp_colon_colon(PP) pp_string (PP, "::")
|
|
#define pp_arrow(PP) pp_string (PP, "->")
|
|
#define pp_equal(PP) pp_character (PP, '=')
|
|
#define pp_question(PP) pp_character (PP, '?')
|
|
#define pp_bar(PP) pp_character (PP, '|')
|
|
#define pp_carret(PP) pp_character (PP, '^')
|
|
#define pp_ampersand(PP) pp_character (PP, '&')
|
|
#define pp_less(PP) pp_character (PP, '<')
|
|
#define pp_greater(PP) pp_character (PP, '>')
|
|
#define pp_plus(PP) pp_character (PP, '+')
|
|
#define pp_minus(PP) pp_character (PP, '-')
|
|
#define pp_star(PP) pp_character (PP, '*')
|
|
#define pp_slash(PP) pp_character (PP, '/')
|
|
#define pp_modulo(PP) pp_character (PP, '%')
|
|
#define pp_exclamation(PP) pp_character (PP, '!')
|
|
#define pp_complement(PP) pp_character (PP, '~')
|
|
#define pp_quote(PP) pp_character (PP, '\'')
|
|
#define pp_backquote(PP) pp_character (PP, '`')
|
|
#define pp_doublequote(PP) pp_character (PP, '"')
|
|
#define pp_newline_and_indent(PP, N) \
|
|
do { \
|
|
pp_indentation (PP) += N; \
|
|
pp_newline (PP); \
|
|
pp_base_indent (pp_base (PP)); \
|
|
pp_needs_newline (PP) = false; \
|
|
} while (0)
|
|
#define pp_maybe_newline_and_indent(PP, N) \
|
|
if (pp_needs_newline (PP)) pp_newline_and_indent (PP, N)
|
|
#define pp_separate_with(PP, C) \
|
|
do { \
|
|
pp_character (PP, C); \
|
|
pp_space (PP); \
|
|
} while (0)
|
|
#define pp_scalar(PP, FORMAT, SCALAR) \
|
|
do \
|
|
{ \
|
|
sprintf (pp_buffer (PP)->digit_buffer, FORMAT, SCALAR); \
|
|
pp_string (PP, pp_buffer (PP)->digit_buffer); \
|
|
} \
|
|
while (0)
|
|
#define pp_decimal_int(PP, I) pp_scalar (PP, "%d", I)
|
|
#define pp_wide_integer(PP, I) \
|
|
pp_scalar (PP, HOST_WIDE_INT_PRINT_DEC, (HOST_WIDE_INT) I)
|
|
#define pp_pointer(PP, P) pp_scalar (PP, "%p", P)
|
|
|
|
#define pp_identifier(PP, ID) pp_string (PP, ID)
|
|
#define pp_tree_identifier(PP, T) \
|
|
pp_append_text(PP, IDENTIFIER_POINTER (T), \
|
|
IDENTIFIER_POINTER (T) + IDENTIFIER_LENGTH (T))
|
|
|
|
#define pp_unsupported_tree(PP, T) \
|
|
pp_verbatim (pp_base (PP), "#`%s' not supported by %s#", \
|
|
tree_code_name[(int) TREE_CODE (T)], __FUNCTION__)
|
|
|
|
|
|
#define pp_buffer(PP) pp_base (PP)->buffer
|
|
/* Clients that directly derive from pretty_printer need to override
|
|
this macro to return a pointer to the base pretty_printer structure. */
|
|
#define pp_base(PP) (PP)
|
|
|
|
extern void pp_construct (pretty_printer *, const char *, int);
|
|
extern void pp_base_set_line_maximum_length (pretty_printer *, int);
|
|
extern void pp_base_set_prefix (pretty_printer *, const char *);
|
|
extern void pp_base_destroy_prefix (pretty_printer *);
|
|
extern int pp_base_remaining_character_count_for_line (pretty_printer *);
|
|
extern void pp_base_clear_output_area (pretty_printer *);
|
|
extern const char *pp_base_formatted_text (pretty_printer *);
|
|
extern const char *pp_base_last_position_in_text (const pretty_printer *);
|
|
extern void pp_base_emit_prefix (pretty_printer *);
|
|
extern void pp_base_append_text (pretty_printer *, const char *, const char *);
|
|
extern void pp_printf (pretty_printer *, const char *, ...) ATTRIBUTE_PRINTF_2;
|
|
extern void pp_verbatim (pretty_printer *, const char *, ...);
|
|
extern void pp_base_flush (pretty_printer *);
|
|
extern void pp_base_format_text (pretty_printer *, text_info *);
|
|
extern void pp_base_format_verbatim (pretty_printer *, text_info *);
|
|
|
|
extern void pp_base_indent (pretty_printer *);
|
|
extern void pp_base_newline (pretty_printer *);
|
|
extern void pp_base_character (pretty_printer *, int);
|
|
extern void pp_base_string (pretty_printer *, const char *);
|
|
|
|
#endif /* GCC_PRETTY_PRINT_H */
|