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
  59 #undef LANG_HOOKS_TREE_INLINING_CANNOT_INLINE_TREE_FN
  60 #define LANG_HOOKS_TREE_INLINING_CANNOT_INLINE_TREE_FN \
  61   c_cannot_inline_tree_fn
  62 #undef LANG_HOOKS_TREE_INLINING_DISREGARD_INLINE_LIMITS
  63 #define LANG_HOOKS_TREE_INLINING_DISREGARD_INLINE_LIMITS \
  64   c_disregard_inline_limits
  65 #undef LANG_HOOKS_TREE_INLINING_ANON_AGGR_TYPE_P
  66 #define LANG_HOOKS_TREE_INLINING_ANON_AGGR_TYPE_P \
  67   anon_aggr_type_p
  68
  69 /* ### When changing hooks, consider if ObjC needs changing too!! ### */
  70
  71 /* Each front end provides its own.  */
  72 const struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;
  73
  74 /* Post-switch processing.  */
  75 static void
  76 c_post_options ()
  77 {
  78   c_common_post_options ();
  79 }
  80
  81 static void
  82 c_init_options ()
  83 {
  84   c_common_init_options (clk_c);
  85 }
  86
  87 static const char *
  88 c_init (filename)
  89      const char *filename;
  90 {
  91   return c_objc_common_init (filename);
  92 }
  93
  94 /* Used by c-lex.c, but only for objc.  */
  95
  96 tree
  97 lookup_interface (arg)
  98      tree arg ATTRIBUTE_UNUSED;
  99 {
 100   return 0;
 101 }
 102
 103 tree
 104 is_class_name (arg)
 105     tree arg ATTRIBUTE_UNUSED;
 106 {
 107   return 0;
 108 }
 109
 110 void
 111 maybe_objc_check_decl (decl)
 112      tree decl ATTRIBUTE_UNUSED;
 113 {
 114 }
 115
 116 int
 117 maybe_objc_comptypes (lhs, rhs, reflexive)
 118      tree lhs ATTRIBUTE_UNUSED;
 119      tree rhs ATTRIBUTE_UNUSED;
 120      int reflexive ATTRIBUTE_UNUSED;
 121 {
 122   return -1;
 123 }
 124
 125 tree
 126 maybe_building_objc_message_expr ()
 127 {
 128   return 0;
 129 }
 130
 131 int
 132 recognize_objc_keyword ()
 133 {
 134   return 0;
 135 }
 136
 137 /* Used by c-typeck.c (build_external_ref), but only for objc.  */
 138
 139 tree
 140 lookup_objc_ivar (id)
 141      tree id ATTRIBUTE_UNUSED;
 142 {
 143   return 0;
 144 }
 145
 146 void
 147 finish_file ()
 148 {
 149   c_objc_common_finish_file ();
 150 }