gcc/objc/objc-lang.c

   1 /* Language-dependent hooks for Objective-C.
   2    Copyright 2001, 2002, 2003 Free Software Foundation, Inc.
   3    Contributed by Ziemowit Laski  <zlaski@apple.com>
   4
   5 This file is part of GCC.
   6
   7 GCC is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2, or (at your option)
  10 any later version.
  11
  12 GCC is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License 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
  19 the Free Software Foundation, 59 Temple Place - Suite 330,
  20 Boston, MA 02111-1307, USA.  */
  21
  22 #include "config.h"
  23 #include "system.h"
  24 #include "coretypes.h"
  25 #include "tm.h"
  26 #include "tree.h"
  27 #include "c-tree.h"
  28 #include "c-common.h"
  29 #include "toplev.h"
  30 #include "objc-act.h"
  31 #include "langhooks.h"
  32 #include "langhooks-def.h"
  33
  34 static int objc_init_options                   PARAMS ((void));
  35
  36 #undef LANG_HOOKS_NAME
  37 #define LANG_HOOKS_NAME "GNU Objective-C"
  38 #undef LANG_HOOKS_INIT
  39 #define LANG_HOOKS_INIT objc_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 objc_init_options
  44 #undef LANG_HOOKS_HANDLE_OPTION
  45 #define LANG_HOOKS_HANDLE_OPTION c_common_handle_option
  46 #undef LANG_HOOKS_POST_OPTIONS
  47 #define LANG_HOOKS_POST_OPTIONS c_common_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_PARSE_FILE
  53 #define LANG_HOOKS_PARSE_FILE c_common_parse_file
  54 #undef LANG_HOOKS_EXPAND_EXPR
  55 #define LANG_HOOKS_EXPAND_EXPR c_expand_expr
  56 #undef LANG_HOOKS_MARK_ADDRESSABLE
  57 #define LANG_HOOKS_MARK_ADDRESSABLE c_mark_addressable
  58 #undef LANG_HOOKS_TRUTHVALUE_CONVERSION
  59 #define LANG_HOOKS_TRUTHVALUE_CONVERSION c_common_truthvalue_conversion
  60 #undef LANG_HOOKS_INSERT_DEFAULT_ATTRIBUTES
  61 #define LANG_HOOKS_INSERT_DEFAULT_ATTRIBUTES c_insert_default_attributes
  62 #undef LANG_HOOKS_FINISH_INCOMPLETE_DECL
  63 #define LANG_HOOKS_FINISH_INCOMPLETE_DECL c_finish_incomplete_decl
  64 #undef LANG_HOOKS_UNSAFE_FOR_REEVAL
  65 #define LANG_HOOKS_UNSAFE_FOR_REEVAL c_common_unsafe_for_reeval
  66 #undef LANG_HOOKS_STATICP
  67 #define LANG_HOOKS_STATICP c_staticp
  68 #undef LANG_HOOKS_NO_BODY_BLOCKS
  69 #define LANG_HOOKS_NO_BODY_BLOCKS true
  70 #undef LANG_HOOKS_DUP_LANG_SPECIFIC_DECL
  71 #define LANG_HOOKS_DUP_LANG_SPECIFIC_DECL c_dup_lang_specific_decl
  72 #undef LANG_HOOKS_PRINT_IDENTIFIER
  73 #define LANG_HOOKS_PRINT_IDENTIFIER c_print_identifier
  74 #undef LANG_HOOKS_DECL_PRINTABLE_NAME
  75 #define LANG_HOOKS_DECL_PRINTABLE_NAME objc_printable_name
  76 #undef LANG_HOOKS_WARN_UNUSED_GLOBAL_DECL
  77 #define LANG_HOOKS_WARN_UNUSED_GLOBAL_DECL c_warn_unused_global_decl
  78
  79 #undef LANG_HOOKS_FUNCTION_ENTER_NESTED
  80 #define LANG_HOOKS_FUNCTION_ENTER_NESTED c_push_function_context
  81 #undef LANG_HOOKS_FUNCTION_LEAVE_NESTED
  82 #define LANG_HOOKS_FUNCTION_LEAVE_NESTED c_pop_function_context
  83
  84 /* Attribute hooks.  */
  85 #undef LANG_HOOKS_COMMON_ATTRIBUTE_TABLE
  86 #define LANG_HOOKS_COMMON_ATTRIBUTE_TABLE c_common_attribute_table
  87 #undef LANG_HOOKS_FORMAT_ATTRIBUTE_TABLE
  88 #define LANG_HOOKS_FORMAT_ATTRIBUTE_TABLE c_common_format_attribute_table
  89
  90 /* Inlining hooks same as the C front end.  */
  91 #undef LANG_HOOKS_TREE_INLINING_CANNOT_INLINE_TREE_FN
  92 #define LANG_HOOKS_TREE_INLINING_CANNOT_INLINE_TREE_FN \
  93   c_cannot_inline_tree_fn
  94 #undef LANG_HOOKS_TREE_INLINING_DISREGARD_INLINE_LIMITS
  95 #define LANG_HOOKS_TREE_INLINING_DISREGARD_INLINE_LIMITS \
  96   c_disregard_inline_limits
  97 #undef LANG_HOOKS_TREE_INLINING_ANON_AGGR_TYPE_P
  98 #define LANG_HOOKS_TREE_INLINING_ANON_AGGR_TYPE_P \
  99   anon_aggr_type_p
 100 #undef LANG_HOOKS_TREE_INLINING_CONVERT_PARM_FOR_INLINING
 101 #define LANG_HOOKS_TREE_INLINING_CONVERT_PARM_FOR_INLINING \
 102   c_convert_parm_for_inlining
 103
 104 #undef LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION
 105 #define LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION c_expand_body
 106
 107 #undef LANG_HOOKS_TYPE_FOR_MODE
 108 #define LANG_HOOKS_TYPE_FOR_MODE c_common_type_for_mode
 109 #undef LANG_HOOKS_TYPE_FOR_SIZE
 110 #define LANG_HOOKS_TYPE_FOR_SIZE c_common_type_for_size
 111 #undef LANG_HOOKS_SIGNED_TYPE
 112 #define LANG_HOOKS_SIGNED_TYPE c_common_signed_type
 113 #undef LANG_HOOKS_UNSIGNED_TYPE
 114 #define LANG_HOOKS_UNSIGNED_TYPE c_common_unsigned_type
 115 #undef LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE
 116 #define LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE c_common_signed_or_unsigned_type
 117 #undef LANG_HOOKS_INCOMPLETE_TYPE_ERROR
 118 #define LANG_HOOKS_INCOMPLETE_TYPE_ERROR c_incomplete_type_error
 119 #undef LANG_HOOKS_TYPE_PROMOTES_TO
 120 #define LANG_HOOKS_TYPE_PROMOTES_TO c_type_promotes_to
 121
 122 /* Each front end provides its own hooks, for toplev.c.  */
 123 const struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;
 124
 125 /* Define the special tree codes that we use.  */
 126
 127 /* Table indexed by tree code giving a string containing a character
 128    classifying the tree code.  */
 129
 130 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) TYPE,
 131
 132 const char tree_code_type[] = {
 133 #include "tree.def"
 134   'x',
 135 #include "c-common.def"
 136   'x',
 137 #include "objc-tree.def"
 138 };
 139 #undef DEFTREECODE
 140
 141 /* Table indexed by tree code giving number of expression
 142    operands beyond the fixed part of the node structure.
 143    Not used for types or decls.  */
 144
 145 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) LENGTH,
 146
 147 const unsigned char tree_code_length[] = {
 148 #include "tree.def"
 149   0,
 150 #include "c-common.def"
 151   0,
 152 #include "objc-tree.def"
 153 };
 154 #undef DEFTREECODE
 155
 156 /* Names of tree components.
 157    Used for printing out the tree and error messages.  */
 158 #define DEFTREECODE(SYM, NAME, TYPE, LEN) NAME,
 159
 160 const char * const tree_code_name[] = {
 161 #include "tree.def"
 162   "@@dummy",
 163 #include "c-common.def"
 164   "@@dummy",
 165 #include "objc-tree.def"
 166 };
 167 #undef DEFTREECODE
 168
 169 static int
 170 objc_init_options ()
 171 {
 172   flag_objc = 1;
 173   return c_common_init_options (clk_c);
 174 }