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, 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 "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 "cxx-pretty-print.h"
  35 #include "debug.h"
  36 #include "cp-objcp-common.h"
  37
  38 enum c_language_kind c_language = clk_objcxx;
  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 /* Each front end provides its own lang hook initializer.  */
  54 const struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;
  55
  56 /* Tree code classes.  */
  57
  58 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) TYPE,
  59
  60 const enum tree_code_class tree_code_type[] = {
  61 #include "tree.def"
  62   tcc_exceptional,
  63 #include "c-common.def"
  64   tcc_exceptional,
  65 #include "cp-tree.def"
  66   tcc_exceptional,
  67 #include "objc-tree.def"
  68 };
  69 #undef DEFTREECODE
  70
  71 /* Table indexed by tree code giving number of expression
  72    operands beyond the fixed part of the node structure.
  73    Not used for types or decls.  */
  74
  75 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) LENGTH,
  76
  77 const unsigned char tree_code_length[] = {
  78 #include "tree.def"
  79   0,
  80 #include "c-common.def"
  81   0,
  82 #include "cp-tree.def"
  83   0,
  84 #include "objc-tree.def"
  85 };
  86 #undef DEFTREECODE
  87
  88 /* Names of tree components.
  89    Used for printing out the tree and error messages.  */
  90 #define DEFTREECODE(SYM, NAME, TYPE, LEN) NAME,
  91
  92 const char *const tree_code_name[] = {
  93 #include "tree.def"
  94   "@@dummy",
  95 #include "c-common.def"
  96   "@@dummy",
  97 #include "cp-tree.def"
  98   "@@dummy",
  99 #include "objc-tree.def"
 100 };
 101 #undef DEFTREECODE
 102
 103 /* Lang hook routines common to C++ and ObjC++ appear in cp/cp-objcp-common.c;
 104    there should be very few (if any) routines below.  */
 105
 106 tree
 107 objcp_tsubst_copy_and_build (tree t, tree args, tsubst_flags_t complain,
 108                              tree in_decl, bool function_p ATTRIBUTE_UNUSED)
 109 {
 110 #define RECURSE(NODE) \
 111   tsubst_copy_and_build (NODE, args, complain, in_decl, /*function_p=*/false)
 112
 113   /* The following two can only occur in Objective-C++.  */
 114
 115   switch ((int) TREE_CODE (t))
 116     {
 117     case MESSAGE_SEND_EXPR:
 118       return objc_finish_message_expr
 119         (RECURSE (TREE_OPERAND (t, 0)),
 120          TREE_OPERAND (t, 1),  /* No need to expand the selector.  */
 121          RECURSE (TREE_OPERAND (t, 2)));
 122
 123     case CLASS_REFERENCE_EXPR:
 124       return objc_get_class_reference
 125         (RECURSE (TREE_OPERAND (t, 0)));
 126
 127     default:
 128       break;
 129     }
 130
 131   /* Fall back to C++ processing.  */
 132   return NULL_TREE;
 133
 134 #undef RECURSE
 135 }
 136
 137 void
 138 finish_file (void)
 139 {
 140   objc_finish_file ();
 141 }
 142
 143 #include "gtype-objcp.h"