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
  39 /* Lang hooks common to C++ and ObjC++ are declared in cp/cp-objcp-common.h;
  40    consequently, there should be very few hooks below.  */
  41
  42 #undef LANG_HOOKS_NAME
  43 #define LANG_HOOKS_NAME "GNU Objective-C++"
  44 #undef LANG_HOOKS_INIT
  45 #define LANG_HOOKS_INIT objc_init
  46 #undef LANG_HOOKS_DECL_PRINTABLE_NAME
  47 #define LANG_HOOKS_DECL_PRINTABLE_NAME  objc_printable_name
  48 #undef LANG_HOOKS_GIMPLIFY_EXPR
  49 #define LANG_HOOKS_GIMPLIFY_EXPR objc_gimplify_expr
  50 #undef LANG_HOOKS_GET_CALLEE_FNDECL
  51 #define LANG_HOOKS_GET_CALLEE_FNDECL    objc_get_callee_fndecl
  52 /* Each front end provides its own lang hook initializer.  */
  53 const struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;
  54
  55 /* Tree code classes.  */
  56
  57 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) TYPE,
  58
  59 const enum tree_code_class tree_code_type[] = {
  60 #include "tree.def"
  61   tcc_exceptional,
  62 #include "c-common.def"
  63   tcc_exceptional,
  64 #include "cp-tree.def"
  65   tcc_exceptional,
  66 #include "objc-tree.def"
  67 };
  68 #undef DEFTREECODE
  69
  70 /* Table indexed by tree code giving number of expression
  71    operands beyond the fixed part of the node structure.
  72    Not used for types or decls.  */
  73
  74 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) LENGTH,
  75
  76 const unsigned char tree_code_length[] = {
  77 #include "tree.def"
  78   0,
  79 #include "c-common.def"
  80   0,
  81 #include "cp-tree.def"
  82   0,
  83 #include "objc-tree.def"
  84 };
  85 #undef DEFTREECODE
  86
  87 /* Names of tree components.
  88    Used for printing out the tree and error messages.  */
  89 #define DEFTREECODE(SYM, NAME, TYPE, LEN) NAME,
  90
  91 const char *const tree_code_name[] = {
  92 #include "tree.def"
  93   "@@dummy",
  94 #include "c-common.def"
  95   "@@dummy",
  96 #include "cp-tree.def"
  97   "@@dummy",
  98 #include "objc-tree.def"
  99 };
 100 #undef DEFTREECODE
 101
 102 /* Lang hook routines common to C++ and ObjC++ appear in cp/cp-objcp-common.c;
 103    there should be very few (if any) routines below.  */
 104
 105 tree
 106 objcp_tsubst_copy_and_build (tree t, tree args, tsubst_flags_t complain,
 107                              tree in_decl, bool function_p ATTRIBUTE_UNUSED)
 108 {
 109 #define RECURSE(NODE) \
 110   tsubst_copy_and_build (NODE, args, complain, in_decl, /*function_p=*/false)
 111
 112   /* The following two can only occur in Objective-C++.  */
 113
 114   switch ((int) TREE_CODE (t))
 115     {
 116     case MESSAGE_SEND_EXPR:
 117       return objc_finish_message_expr
 118         (RECURSE (TREE_OPERAND (t, 0)),
 119          TREE_OPERAND (t, 1),  /* No need to expand the selector.  */
 120          RECURSE (TREE_OPERAND (t, 2)));
 121
 122     case CLASS_REFERENCE_EXPR:
 123       return objc_get_class_reference
 124         (RECURSE (TREE_OPERAND (t, 0)));
 125
 126     default:
 127       break;
 128     }
 129
 130   /* Fall back to C++ processing.  */
 131   return NULL_TREE;
 132
 133 #undef RECURSE
 134 }
 135
 136 void
 137 finish_file (void)
 138 {
 139   objc_finish_file ();
 140 }
 141
 142 #include "gtype-objcp.h"