2002-06-04 Aldy Hernandez <aldyh@redhat.com>

[thirdparty/gcc.git] / gcc / c-lang.c

/* Language-specific hook definitions for C front end.
   Copyright (C) 1991, 1995, 1997, 1998,
   1999, 2000, 2001 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 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.  */


#include "config.h"
#include "system.h"
#include "tree.h"
#include "c-tree.h"
#include "c-common.h"
#include "langhooks.h"
#include "langhooks-def.h"

static const char *c_init PARAMS ((const char *));
static void c_init_options PARAMS ((void));

/* ### When changing hooks, consider if ObjC needs changing too!! ### */

#undef LANG_HOOKS_NAME
#define LANG_HOOKS_NAME "GNU C"
#undef LANG_HOOKS_INIT
#define LANG_HOOKS_INIT c_init
#undef LANG_HOOKS_FINISH
#define LANG_HOOKS_FINISH c_common_finish
#undef LANG_HOOKS_INIT_OPTIONS
#define LANG_HOOKS_INIT_OPTIONS c_init_options
#undef LANG_HOOKS_DECODE_OPTION
#define LANG_HOOKS_DECODE_OPTION c_decode_option
#undef LANG_HOOKS_POST_OPTIONS
#define LANG_HOOKS_POST_OPTIONS c_common_post_options
#undef LANG_HOOKS_GET_ALIAS_SET
#define LANG_HOOKS_GET_ALIAS_SET c_common_get_alias_set
#undef LANG_HOOKS_SAFE_FROM_P
#define LANG_HOOKS_SAFE_FROM_P c_safe_from_p
#undef LANG_HOOKS_MARK_TREE
#define LANG_HOOKS_MARK_TREE c_mark_tree
#undef LANG_HOOKS_EXPAND_EXPR
#define LANG_HOOKS_EXPAND_EXPR c_expand_expr
#undef LANG_HOOKS_MARK_ADDRESSABLE
#define LANG_HOOKS_MARK_ADDRESSABLE c_mark_addressable
#undef LANG_HOOKS_PARSE_FILE
#define LANG_HOOKS_PARSE_FILE c_common_parse_file
#undef LANG_HOOKS_TRUTHVALUE_CONVERSION
#define LANG_HOOKS_TRUTHVALUE_CONVERSION c_common_truthvalue_conversion
#undef LANG_HOOKS_INSERT_DEFAULT_ATTRIBUTES
#define LANG_HOOKS_INSERT_DEFAULT_ATTRIBUTES c_insert_default_attributes
#undef LANG_HOOKS_FINISH_INCOMPLETE_DECL
#define LANG_HOOKS_FINISH_INCOMPLETE_DECL c_finish_incomplete_decl
#undef LANG_HOOKS_UNSAFE_FOR_REEVAL
#define LANG_HOOKS_UNSAFE_FOR_REEVAL c_common_unsafe_for_reeval
#undef LANG_HOOKS_STATICP
#define LANG_HOOKS_STATICP c_staticp
#undef LANG_HOOKS_WARN_UNUSED_GLOBAL_DECL
#define LANG_HOOKS_WARN_UNUSED_GLOBAL_DECL c_warn_unused_global_decl
#undef LANG_HOOKS_PRINT_IDENTIFIER
#define LANG_HOOKS_PRINT_IDENTIFIER c_print_identifier
#undef LANG_HOOKS_FUNCTION_ENTER_NESTED
#define LANG_HOOKS_FUNCTION_ENTER_NESTED c_push_function_context
#undef LANG_HOOKS_FUNCTION_LEAVE_NESTED
#define LANG_HOOKS_FUNCTION_LEAVE_NESTED c_pop_function_context
#undef LANG_HOOKS_FUNCTION_MARK
#define LANG_HOOKS_FUNCTION_MARK c_mark_function_context
#undef LANG_HOOKS_DUP_LANG_SPECIFIC_DECL
#define LANG_HOOKS_DUP_LANG_SPECIFIC_DECL c_dup_lang_specific_decl

/* Attribute hooks.  */
#undef LANG_HOOKS_COMMON_ATTRIBUTE_TABLE
#define LANG_HOOKS_COMMON_ATTRIBUTE_TABLE c_common_attribute_table
#undef LANG_HOOKS_FORMAT_ATTRIBUTE_TABLE
#define LANG_HOOKS_FORMAT_ATTRIBUTE_TABLE c_common_format_attribute_table

#undef LANG_HOOKS_TREE_INLINING_CANNOT_INLINE_TREE_FN
#define LANG_HOOKS_TREE_INLINING_CANNOT_INLINE_TREE_FN \
  c_cannot_inline_tree_fn
#undef LANG_HOOKS_TREE_INLINING_DISREGARD_INLINE_LIMITS
#define LANG_HOOKS_TREE_INLINING_DISREGARD_INLINE_LIMITS \
  c_disregard_inline_limits
#undef LANG_HOOKS_TREE_INLINING_ANON_AGGR_TYPE_P
#define LANG_HOOKS_TREE_INLINING_ANON_AGGR_TYPE_P \
  anon_aggr_type_p
#undef LANG_HOOKS_TREE_INLINING_CONVERT_PARM_FOR_INLINING
#define LANG_HOOKS_TREE_INLINING_CONVERT_PARM_FOR_INLINING \
  c_convert_parm_for_inlining

#undef LANG_HOOKS_TYPE_FOR_MODE
#define LANG_HOOKS_TYPE_FOR_MODE c_common_type_for_mode
#undef LANG_HOOKS_TYPE_FOR_SIZE
#define LANG_HOOKS_TYPE_FOR_SIZE c_common_type_for_size
#undef LANG_HOOKS_SIGNED_TYPE
#define LANG_HOOKS_SIGNED_TYPE c_common_signed_type
#undef LANG_HOOKS_UNSIGNED_TYPE
#define LANG_HOOKS_UNSIGNED_TYPE c_common_unsigned_type
#undef LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE
#define LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE c_common_signed_or_unsigned_type
#undef LANG_HOOKS_INCOMPLETE_TYPE_ERROR
#define LANG_HOOKS_INCOMPLETE_TYPE_ERROR c_incomplete_type_error
#undef LANG_HOOKS_TYPE_PROMOTES_TO
#define LANG_HOOKS_TYPE_PROMOTES_TO c_type_promotes_to

/* ### When changing hooks, consider if ObjC needs changing too!! ### */

/* Each front end provides its own.  */
const struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;

/* Tree code classes.  */

#define DEFTREECODE(SYM, NAME, TYPE, LENGTH) TYPE,

const char tree_code_type[] = {
#include "tree.def"
  'x',
#include "c-common.def"
};
#undef DEFTREECODE

/* Table indexed by tree code giving number of expression
   operands beyond the fixed part of the node structure.
   Not used for types or decls.  */

#define DEFTREECODE(SYM, NAME, TYPE, LENGTH) LENGTH,

const unsigned char tree_code_length[] = {
#include "tree.def"
  0,
#include "c-common.def"
};
#undef DEFTREECODE

/* Names of tree components.
   Used for printing out the tree and error messages.  */
#define DEFTREECODE(SYM, NAME, TYPE, LEN) NAME,

const char *const tree_code_name[] = {
#include "tree.def"
  "@@dummy",
#include "c-common.def"
};
#undef DEFTREECODE

static void
c_init_options ()
{
  c_common_init_options (clk_c);
}

static const char *
c_init (filename)
     const char *filename;
{
  return c_objc_common_init (filename);
}

/* Used by c-lex.c, but only for objc.  */

tree
lookup_interface (arg)
     tree arg ATTRIBUTE_UNUSED;
{
  return 0;
}

tree
is_class_name (arg)
    tree arg ATTRIBUTE_UNUSED;
{
  return 0;
}

void
maybe_objc_check_decl (decl)
     tree decl ATTRIBUTE_UNUSED;
{
}

int
maybe_objc_comptypes (lhs, rhs, reflexive)
     tree lhs ATTRIBUTE_UNUSED;
     tree rhs ATTRIBUTE_UNUSED;
     int reflexive ATTRIBUTE_UNUSED;
{
  return -1;
}

tree
maybe_building_objc_message_expr ()
{
  return 0;
}

int
recognize_objc_keyword ()
{
  return 0;
}

/* Used by c-typeck.c (build_external_ref), but only for objc.  */

tree
lookup_objc_ivar (id)
     tree id ATTRIBUTE_UNUSED;
{
  return 0;
}

void
finish_file ()
{
  c_objc_common_finish_file ();
}