/* Declarations of core diagnostic functionality for code that does
   not need to deal with diagnostic contexts or diagnostic info
   structures.
   Copyright (C) 1998-2024 Free Software Foundation, Inc.

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 3, 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 COPYING3.  If not see
<http://www.gnu.org/licenses/>.  */

#ifndef GCC_DIAGNOSTIC_CORE_H
#define GCC_DIAGNOSTIC_CORE_H

#include "bversion.h"

/* Constants used to discriminate diagnostics.  */
typedef enum
{
#define DEFINE_DIAGNOSTIC_KIND(K, msgid, C) K,
#include "diagnostic.def"
#undef DEFINE_DIAGNOSTIC_KIND
  DK_LAST_DIAGNOSTIC_KIND,
  /* This is used for tagging pragma pops in the diagnostic
     classification history chain.  */
  DK_POP,
  /* This is used internally to note that a diagnostic is enabled
     without mandating any specific type.  */
  DK_ANY,
} diagnostic_t;

/* RAII-style class for grouping related diagnostics.  */

class auto_diagnostic_group
{
 public:
  auto_diagnostic_group ();
  ~auto_diagnostic_group ();
};

/* RAII-style class for nesting hierarchical diagnostics.
   Any diagnostics emitted within the lifetime of this object
   will be treated as one level of nesting deeper than diagnostics
   emitted outside the lifetime of the object.  */

class auto_diagnostic_nesting_level
{
 public:
  auto_diagnostic_nesting_level ();
  ~auto_diagnostic_nesting_level ();
};

/* Forward decl.  */
class diagnostic_metadata; /* See diagnostic-metadata.h.  */

/* A class to use for the ID of an option that controls
   a particular diagnostic.
   This is just a wrapper around "int", but better documents
   the intent of the code.  */

struct diagnostic_option_id
{
  diagnostic_option_id () : m_idx (0) {}

  diagnostic_option_id (int idx) : m_idx (idx) {}
  /* Ideally we'd take an enum opt_code here, but we don't
     want to depend on its decl.  */

  bool operator== (diagnostic_option_id other) const
  {
    return m_idx == other.m_idx;
  }

  int m_idx;
};

extern const char *progname;

extern const char *trim_filename (const char *);

/* If we haven't already defined a front-end-specific diagnostics
   style, use the generic one.  */
#ifndef GCC_DIAG_STYLE
#define GCC_DIAG_STYLE __gcc_tdiag__
#endif
/* None of these functions are suitable for ATTRIBUTE_PRINTF, because
   each language front end can extend them with its own set of format
   specifiers.  We must use custom format checks.  */
#if (CHECKING_P && GCC_VERSION >= 4001) || GCC_VERSION == BUILDING_GCC_VERSION
#define ATTRIBUTE_GCC_DIAG(m, n) __attribute__ ((__format__ (GCC_DIAG_STYLE, m, n))) ATTRIBUTE_NONNULL(m)
#else
#define ATTRIBUTE_GCC_DIAG(m, n) ATTRIBUTE_NONNULL(m)
#endif
extern void internal_error (const char *, ...) ATTRIBUTE_GCC_DIAG(1,2)
     ATTRIBUTE_NORETURN;
extern void internal_error_no_backtrace (const char *, ...)
     ATTRIBUTE_GCC_DIAG(1,2) ATTRIBUTE_NORETURN;
/* Pass one of the OPT_W* from options.h as the first parameter.  */
extern bool warning (diagnostic_option_id,
		     const char *, ...) ATTRIBUTE_GCC_DIAG(2,3);
extern bool warning_n (location_t,
		       diagnostic_option_id,
		       unsigned HOST_WIDE_INT,
		       const char *, const char *, ...)
    ATTRIBUTE_GCC_DIAG(4,6) ATTRIBUTE_GCC_DIAG(5,6);
extern bool warning_n (rich_location *,
		       diagnostic_option_id,
		       unsigned HOST_WIDE_INT,
		       const char *, const char *, ...)
    ATTRIBUTE_GCC_DIAG(4, 6) ATTRIBUTE_GCC_DIAG(5, 6);
extern bool warning_at (location_t,
			diagnostic_option_id,
			const char *, ...)
    ATTRIBUTE_GCC_DIAG(3,4);
extern bool warning_at (rich_location *,
			diagnostic_option_id,
			const char *, ...)
    ATTRIBUTE_GCC_DIAG(3,4);
extern bool warning_meta (rich_location *,
			  const diagnostic_metadata &,
			  diagnostic_option_id,
			  const char *, ...)
    ATTRIBUTE_GCC_DIAG(4,5);
extern void error (const char *, ...) ATTRIBUTE_GCC_DIAG(1,2);
extern void error_n (location_t, unsigned HOST_WIDE_INT, const char *,
		     const char *, ...)
    ATTRIBUTE_GCC_DIAG(3,5) ATTRIBUTE_GCC_DIAG(4,5);
extern void error_at (location_t, const char *, ...) ATTRIBUTE_GCC_DIAG(2,3);
extern void error_at (rich_location *, const char *, ...)
  ATTRIBUTE_GCC_DIAG(2,3);
extern void error_meta (rich_location *, const diagnostic_metadata &,
			const char *, ...)
  ATTRIBUTE_GCC_DIAG(3,4);
extern void fatal_error (location_t, const char *, ...) ATTRIBUTE_GCC_DIAG(2,3)
     ATTRIBUTE_NORETURN;
/* Pass one of the OPT_W* from options.h as the second parameter.  */
extern bool pedwarn (location_t,
		     diagnostic_option_id,
		     const char *, ...)
     ATTRIBUTE_GCC_DIAG(3,4);
extern bool pedwarn (rich_location *,
		     diagnostic_option_id,
		     const char *, ...)
     ATTRIBUTE_GCC_DIAG(3,4);
extern bool permerror (location_t, const char *, ...) ATTRIBUTE_GCC_DIAG(2,3);
extern bool permerror (rich_location *, const char *,
				   ...) ATTRIBUTE_GCC_DIAG(2,3);
extern bool permerror_opt (location_t,
			   diagnostic_option_id,
			   const char *, ...)
  ATTRIBUTE_GCC_DIAG(3,4);
extern bool permerror_opt (rich_location *,
			   diagnostic_option_id,
			   const char *, ...)
  ATTRIBUTE_GCC_DIAG(3,4);
extern void sorry (const char *, ...) ATTRIBUTE_GCC_DIAG(1,2);
extern void sorry_at (location_t, const char *, ...) ATTRIBUTE_GCC_DIAG(2,3);
extern void inform (location_t, const char *, ...) ATTRIBUTE_GCC_DIAG(2,3);
extern void inform (rich_location *, const char *, ...) ATTRIBUTE_GCC_DIAG(2,3);
extern void inform_n (location_t, unsigned HOST_WIDE_INT, const char *,
		      const char *, ...)
    ATTRIBUTE_GCC_DIAG(3,5) ATTRIBUTE_GCC_DIAG(4,5);
extern void verbatim (const char *, ...) ATTRIBUTE_GCC_DIAG(1,2);
extern bool emit_diagnostic (diagnostic_t,
			     location_t,
			     diagnostic_option_id,
			     const char *, ...) ATTRIBUTE_GCC_DIAG(4,5);
extern bool emit_diagnostic (diagnostic_t,
			     rich_location *,
			     diagnostic_option_id,
			     const char *, ...) ATTRIBUTE_GCC_DIAG(4,5);
extern bool emit_diagnostic_valist (diagnostic_t,
				    location_t,
				    diagnostic_option_id,
				    const char *, va_list *)
  ATTRIBUTE_GCC_DIAG (4,0);
extern bool emit_diagnostic_valist_meta (diagnostic_t,
					 rich_location *,
					 const diagnostic_metadata *,
					 diagnostic_option_id,
					 const char *,
					 va_list *) ATTRIBUTE_GCC_DIAG (5,0);
extern bool seen_error (void);

#ifdef BUFSIZ
  /* N.B. Unlike all the others, fnotice is just gettext+fprintf, and
     therefore it can have ATTRIBUTE_PRINTF.  */
extern void fnotice			(FILE *, const char *, ...)
     ATTRIBUTE_PRINTF_2;
#endif

#endif /* ! GCC_DIAGNOSTIC_CORE_H */