gcc/c-lang.c

   1 /* Language-specific hook definitions for C front end.
   2    Copyright (C) 1991, 1995, 1997, 1998,
   3    1999, 2000, 2001 Free Software Foundation, Inc.
   4
   5 This file is part of GCC.
   6
   7 GCC is free software; you can redistribute it and/or modify it under
   8 the terms of the GNU General Public License as published by the Free
   9 Software Foundation; either version 2, or (at your option) any later
  10 version.
  11
  12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  15 for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GCC; see the file COPYING.  If not, write to the Free
  19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  20 02111-1307, USA.  */
  21
  22
  23 #include "config.h"
  24 #include "system.h"
  25 #include "tree.h"
  26 #include "c-tree.h"
  27 #include "langhooks.h"
  28 #include "langhooks-def.h"
  29
  30 static const char *c_init PARAMS ((const char *));
  31 static void c_init_options PARAMS ((void));
  32 static void c_post_options PARAMS ((void));
  33
  34 /* ### When changing hooks, consider if ObjC needs changing too!! ### */
  35
  36 #undef LANG_HOOKS_NAME
  37 #define LANG_HOOKS_NAME "GNU C"
  38 #undef LANG_HOOKS_INIT
  39 #define LANG_HOOKS_INIT c_init
  40 #undef LANG_HOOKS_FINISH
  41 #define LANG_HOOKS_FINISH c_common_finish
  42 #undef LANG_HOOKS_INIT_OPTIONS
  43 #define LANG_HOOKS_INIT_OPTIONS c_init_options
  44 #undef LANG_HOOKS_DECODE_OPTION
  45 #define LANG_HOOKS_DECODE_OPTION c_decode_option
  46 #undef LANG_HOOKS_POST_OPTIONS
  47 #define LANG_HOOKS_POST_OPTIONS c_post_options
  48 #undef LANG_HOOKS_GET_ALIAS_SET
  49 #define LANG_HOOKS_GET_ALIAS_SET c_common_get_alias_set
  50 #undef LANG_HOOKS_SAFE_FROM_P
  51 #define LANG_HOOKS_SAFE_FROM_P c_safe_from_p
  52 #undef LANG_HOOKS_STATICP
  53 #define LANG_HOOKS_STATICP c_staticp
  54 #undef LANG_HOOKS_PRINT_IDENTIFIER
  55 #define LANG_HOOKS_PRINT_IDENTIFIER c_print_identifier
  56 #undef LANG_HOOKS_SET_YYDEBUG
  57 #define LANG_HOOKS_SET_YYDEBUG c_set_yydebug
  58 #undef LANG_HOOKS_DUP_LANG_SPECIFIC_DECL
  59 #define LANG_HOOKS_DUP_LANG_SPECIFIC_DECL c_dup_lang_specific_decl
  60
  61 #undef LANG_HOOKS_TREE_INLINING_CANNOT_INLINE_TREE_FN
  62 #define LANG_HOOKS_TREE_INLINING_CANNOT_INLINE_TREE_FN \
  63   c_cannot_inline_tree_fn
  64 #undef LANG_HOOKS_TREE_INLINING_DISREGARD_INLINE_LIMITS
  65 #define LANG_HOOKS_TREE_INLINING_DISREGARD_INLINE_LIMITS \
  66   c_disregard_inline_limits
  67 #undef LANG_HOOKS_TREE_INLINING_ANON_AGGR_TYPE_P
  68 #define LANG_HOOKS_TREE_INLINING_ANON_AGGR_TYPE_P \
  69   anon_aggr_type_p
  70
  71 /* ### When changing hooks, consider if ObjC needs changing too!! ### */
  72
  73 /* Each front end provides its own.  */
  74 const struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;
  75
  76 /* Post-switch processing.  */
  77 static void
  78 c_post_options ()
  79 {
  80   c_common_post_options ();
  81 }
  82
  83 static void
  84 c_init_options ()
  85 {
  86   c_common_init_options (clk_c);
  87 }
  88
  89 static const char *
  90 c_init (filename)
  91      const char *filename;
  92 {
  93   return c_objc_common_init (filename);
  94 }
  95
  96 /* Used by c-lex.c, but only for objc.  */
  97
  98 tree
  99 lookup_interface (arg)
 100      tree arg ATTRIBUTE_UNUSED;
 101 {
 102   return 0;
 103 }
 104
 105 tree
 106 is_class_name (arg)
 107     tree arg ATTRIBUTE_UNUSED;
 108 {
 109   return 0;
 110 }
 111
 112 void
 113 maybe_objc_check_decl (decl)
 114      tree decl ATTRIBUTE_UNUSED;
 115 {
 116 }
 117
 118 int
 119 maybe_objc_comptypes (lhs, rhs, reflexive)
 120      tree lhs ATTRIBUTE_UNUSED;
 121      tree rhs ATTRIBUTE_UNUSED;
 122      int reflexive ATTRIBUTE_UNUSED;
 123 {
 124   return -1;
 125 }
 126
 127 tree
 128 maybe_building_objc_message_expr ()
 129 {
 130   return 0;
 131 }
 132
 133 int
 134 recognize_objc_keyword ()
 135 {
 136   return 0;
 137 }
 138
 139 /* Used by c-typeck.c (build_external_ref), but only for objc.  */
 140
 141 tree
 142 lookup_objc_ivar (id)
 143      tree id ATTRIBUTE_UNUSED;
 144 {
 145   return 0;
 146 }
 147
 148 void
 149 finish_file ()
 150 {
 151   c_objc_common_finish_file ();
 152 }