gcc/objcp/objcp-lang.c

   1 /* Language-dependent hooks for Objective-C++.
   2    Copyright 2005 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, 51 Franklin Street, Fifth Floor,
  20 Boston, MA 02110-1301, USA.  */
  21
  22 #include "config.h"
  23 #include "system.h"
  24 #include "coretypes.h"
  25 #include "tm.h"
  26 #include "tree.h"
  27 #include "cp-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 #include "diagnostic.h"
  34 #include "debug.h"
  35 #include "cp-objcp-common.h"
  36
  37 enum c_language_kind c_language = clk_objcxx;
  38 static void objcxx_init_ts (void);
  39
  40 /* Lang hooks common to C++ and ObjC++ are declared in cp/cp-objcp-common.h;
  41    consequently, there should be very few hooks below.  */
  42
  43 #undef LANG_HOOKS_NAME
  44 #define LANG_HOOKS_NAME "GNU Objective-C++"
  45 #undef LANG_HOOKS_INIT
  46 #define LANG_HOOKS_INIT objc_init
  47 #undef LANG_HOOKS_DECL_PRINTABLE_NAME
  48 #define LANG_HOOKS_DECL_PRINTABLE_NAME  objc_printable_name
  49 #undef LANG_HOOKS_GIMPLIFY_EXPR
  50 #define LANG_HOOKS_GIMPLIFY_EXPR objc_gimplify_expr
  51 #undef LANG_HOOKS_GET_CALLEE_FNDECL
  52 #define LANG_HOOKS_GET_CALLEE_FNDECL    objc_get_callee_fndecl
  53 #undef LANG_HOOKS_INIT_TS
  54 #define LANG_HOOKS_INIT_TS objcxx_init_ts
  55
  56 /* Each front end provides its own lang hook initializer.  */
  57 const struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;
  58
  59 /* Tree code classes.  */
  60
  61 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) TYPE,
  62
  63 const enum tree_code_class tree_code_type[] = {
  64 #include "tree.def"
  65   tcc_exceptional,
  66 #include "c-common.def"
  67   tcc_exceptional,
  68 #include "cp-tree.def"
  69   tcc_exceptional,
  70 #include "objc-tree.def"
  71 };
  72 #undef DEFTREECODE
  73
  74 /* Table indexed by tree code giving number of expression
  75    operands beyond the fixed part of the node structure.
  76    Not used for types or decls.  */
  77
  78 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) LENGTH,
  79
  80 const unsigned char tree_code_length[] = {
  81 #include "tree.def"
  82   0,
  83 #include "c-common.def"
  84   0,
  85 #include "cp-tree.def"
  86   0,
  87 #include "objc-tree.def"
  88 };
  89 #undef DEFTREECODE
  90
  91 /* Names of tree components.
  92    Used for printing out the tree and error messages.  */
  93 #define DEFTREECODE(SYM, NAME, TYPE, LEN) NAME,
  94
  95 const char *const tree_code_name[] = {
  96 #include "tree.def"
  97   "@@dummy",
  98 #include "c-common.def"
  99   "@@dummy",
 100 #include "cp-tree.def"
 101   "@@dummy",
 102 #include "objc-tree.def"
 103 };
 104 #undef DEFTREECODE
 105
 106 /* Lang hook routines common to C++ and ObjC++ appear in cp/cp-objcp-common.c;
 107    there should be very few (if any) routines below.  */
 108
 109 tree
 110 objcp_tsubst_copy_and_build (tree t, tree args, tsubst_flags_t complain,
 111                              tree in_decl, bool function_p ATTRIBUTE_UNUSED)
 112 {
 113 #define RECURSE(NODE) \
 114   tsubst_copy_and_build (NODE, args, complain, in_decl, /*function_p=*/false)
 115
 116   /* The following two can only occur in Objective-C++.  */
 117
 118   switch ((int) TREE_CODE (t))
 119     {
 120     case MESSAGE_SEND_EXPR:
 121       return objc_finish_message_expr
 122         (RECURSE (TREE_OPERAND (t, 0)),
 123          TREE_OPERAND (t, 1),  /* No need to expand the selector.  */
 124          RECURSE (TREE_OPERAND (t, 2)));
 125
 126     case CLASS_REFERENCE_EXPR:
 127       return objc_get_class_reference
 128         (RECURSE (TREE_OPERAND (t, 0)));
 129
 130     default:
 131       break;
 132     }
 133
 134   /* Fall back to C++ processing.  */
 135   return NULL_TREE;
 136
 137 #undef RECURSE
 138 }
 139
 140 static void
 141 objcxx_init_ts (void)
 142 {
 143   /* objc decls */
 144   tree_contains_struct[CLASS_METHOD_DECL][TS_DECL_NON_COMMON] = 1;
 145   tree_contains_struct[INSTANCE_METHOD_DECL][TS_DECL_NON_COMMON] = 1;
 146   tree_contains_struct[KEYWORD_DECL][TS_DECL_NON_COMMON] = 1;
 147
 148   tree_contains_struct[CLASS_METHOD_DECL][TS_DECL_WITH_VIS] = 1;
 149   tree_contains_struct[INSTANCE_METHOD_DECL][TS_DECL_WITH_VIS] = 1;
 150   tree_contains_struct[KEYWORD_DECL][TS_DECL_WITH_VIS] = 1;
 151
 152   tree_contains_struct[CLASS_METHOD_DECL][TS_DECL_WRTL] = 1;
 153   tree_contains_struct[INSTANCE_METHOD_DECL][TS_DECL_WRTL] = 1;
 154   tree_contains_struct[KEYWORD_DECL][TS_DECL_WRTL] = 1;
 155
 156   tree_contains_struct[CLASS_METHOD_DECL][TS_DECL_MINIMAL] = 1;
 157   tree_contains_struct[INSTANCE_METHOD_DECL][TS_DECL_MINIMAL] = 1;
 158   tree_contains_struct[KEYWORD_DECL][TS_DECL_MINIMAL] = 1;
 159
 160   tree_contains_struct[CLASS_METHOD_DECL][TS_DECL_COMMON] = 1;
 161   tree_contains_struct[INSTANCE_METHOD_DECL][TS_DECL_COMMON] = 1;
 162   tree_contains_struct[KEYWORD_DECL][TS_DECL_COMMON] = 1;
 163
 164   /* C++ decls */
 165   tree_contains_struct[NAMESPACE_DECL][TS_DECL_NON_COMMON] = 1;
 166   tree_contains_struct[USING_DECL][TS_DECL_NON_COMMON] = 1;
 167   tree_contains_struct[TEMPLATE_DECL][TS_DECL_NON_COMMON] = 1;
 168   tree_contains_struct[ALIAS_DECL][TS_DECL_NON_COMMON] = 1;
 169
 170   tree_contains_struct[NAMESPACE_DECL][TS_DECL_WITH_VIS] = 1;
 171   tree_contains_struct[USING_DECL][TS_DECL_WITH_VIS] = 1;
 172   tree_contains_struct[TEMPLATE_DECL][TS_DECL_WITH_VIS] = 1;
 173   tree_contains_struct[ALIAS_DECL][TS_DECL_WITH_VIS] = 1;
 174
 175   tree_contains_struct[NAMESPACE_DECL][TS_DECL_WRTL] = 1;
 176   tree_contains_struct[USING_DECL][TS_DECL_WRTL] = 1;
 177   tree_contains_struct[TEMPLATE_DECL][TS_DECL_WRTL] = 1;
 178   tree_contains_struct[ALIAS_DECL][TS_DECL_WRTL] = 1;
 179
 180   tree_contains_struct[NAMESPACE_DECL][TS_DECL_COMMON] = 1;
 181   tree_contains_struct[USING_DECL][TS_DECL_COMMON] = 1;
 182   tree_contains_struct[TEMPLATE_DECL][TS_DECL_COMMON] = 1;
 183   tree_contains_struct[ALIAS_DECL][TS_DECL_COMMON] = 1;
 184
 185   tree_contains_struct[NAMESPACE_DECL][TS_DECL_MINIMAL] = 1;
 186   tree_contains_struct[USING_DECL][TS_DECL_MINIMAL] = 1;
 187   tree_contains_struct[TEMPLATE_DECL][TS_DECL_MINIMAL] = 1;
 188   tree_contains_struct[ALIAS_DECL][TS_DECL_MINIMAL] = 1;
 189
 190   init_shadowed_var_for_decl ();
 191 }
 192
 193
 194 void
 195 finish_file (void)
 196 {
 197   objc_finish_file ();
 198 }
 199
 200 #include "gtype-objcp.h"