gcc/cp/cp-lang.c

   1 /* Language-dependent hooks for C++.
   2    Copyright 2001, 2002, 2004 Free Software Foundation, Inc.
   3    Contributed by Alexandre Oliva  <aoliva@redhat.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 "langhooks.h"
  31 #include "langhooks-def.h"
  32 #include "diagnostic.h"
  33 #include "debug.h"
  34 #include "cp-objcp-common.h"
  35 #include "hashtab.h"
  36
  37 enum c_language_kind c_language = clk_cxx;
  38 static void cp_init_ts (void);
  39 static const char * cxx_dwarf_name (tree t, int verbosity);
  40
  41 /* Lang hooks common to C++ and ObjC++ are declared in cp/cp-objcp-common.h;
  42    consequently, there should be very few hooks below.  */
  43
  44 #undef LANG_HOOKS_NAME
  45 #define LANG_HOOKS_NAME "GNU C++"
  46 #undef LANG_HOOKS_INIT
  47 #define LANG_HOOKS_INIT cxx_init
  48 #undef LANG_HOOKS_DECL_PRINTABLE_NAME
  49 #define LANG_HOOKS_DECL_PRINTABLE_NAME  cxx_printable_name
  50 #undef LANG_HOOKS_DWARF_NAME
  51 #define LANG_HOOKS_DWARF_NAME cxx_dwarf_name
  52 #undef LANG_HOOKS_FOLD_OBJ_TYPE_REF
  53 #define LANG_HOOKS_FOLD_OBJ_TYPE_REF cp_fold_obj_type_ref
  54 #undef LANG_HOOKS_INIT_TS
  55 #define LANG_HOOKS_INIT_TS cp_init_ts
  56
  57 /* Each front end provides its own lang hook initializer.  */
  58 const struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;
  59
  60 /* Tree code classes.  */
  61
  62 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) TYPE,
  63
  64 const enum tree_code_class tree_code_type[] = {
  65 #include "tree.def"
  66   tcc_exceptional,
  67 #include "c-common.def"
  68   tcc_exceptional,
  69 #include "cp-tree.def"
  70 };
  71 #undef DEFTREECODE
  72
  73 /* Table indexed by tree code giving number of expression
  74    operands beyond the fixed part of the node structure.
  75    Not used for types or decls.  */
  76
  77 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) LENGTH,
  78
  79 const unsigned char tree_code_length[] = {
  80 #include "tree.def"
  81   0,
  82 #include "c-common.def"
  83   0,
  84 #include "cp-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 };
  99 #undef DEFTREECODE
 100
 101 /* Lang hook routines common to C++ and ObjC++ appear in cp/cp-objcp-common.c;
 102    there should be very few routines below.  */
 103
 104 /* The following function does something real, but only in Objective-C++.  */
 105
 106 tree
 107 objcp_tsubst_copy_and_build (tree t ATTRIBUTE_UNUSED,
 108                              tree args ATTRIBUTE_UNUSED,
 109                              tsubst_flags_t complain ATTRIBUTE_UNUSED,
 110                              tree in_decl ATTRIBUTE_UNUSED,
 111                              bool function_p ATTRIBUTE_UNUSED)
 112 {
 113   return NULL_TREE;
 114 }
 115
 116
 117 static void
 118 cp_init_ts (void)
 119 {
 120   tree_contains_struct[NAMESPACE_DECL][TS_DECL_NON_COMMON] = 1;
 121   tree_contains_struct[USING_DECL][TS_DECL_NON_COMMON] = 1;
 122   tree_contains_struct[TEMPLATE_DECL][TS_DECL_NON_COMMON] = 1;
 123
 124   tree_contains_struct[NAMESPACE_DECL][TS_DECL_WITH_VIS] = 1;
 125   tree_contains_struct[USING_DECL][TS_DECL_WITH_VIS] = 1;
 126   tree_contains_struct[TEMPLATE_DECL][TS_DECL_WITH_VIS] = 1;
 127
 128   tree_contains_struct[NAMESPACE_DECL][TS_DECL_WRTL] = 1;
 129   tree_contains_struct[USING_DECL][TS_DECL_WRTL] = 1;
 130   tree_contains_struct[TEMPLATE_DECL][TS_DECL_WRTL] = 1;
 131
 132   tree_contains_struct[NAMESPACE_DECL][TS_DECL_COMMON] = 1;
 133   tree_contains_struct[USING_DECL][TS_DECL_COMMON] = 1;
 134   tree_contains_struct[TEMPLATE_DECL][TS_DECL_COMMON] = 1;
 135
 136   tree_contains_struct[NAMESPACE_DECL][TS_DECL_MINIMAL] = 1;
 137   tree_contains_struct[USING_DECL][TS_DECL_MINIMAL] = 1;
 138   tree_contains_struct[TEMPLATE_DECL][TS_DECL_MINIMAL] = 1;
 139
 140   init_shadowed_var_for_decl ();
 141
 142 }
 143
 144 static const char *
 145 cxx_dwarf_name (tree t, int verbosity)
 146 {
 147   gcc_assert (DECL_P (t));
 148
 149   if (verbosity >= 2)
 150     return decl_as_string (t, TFF_DECL_SPECIFIERS | TFF_UNQUALIFIED_NAME);
 151
 152   return cxx_printable_name (t, verbosity);
 153 }
 154
 155 void
 156 finish_file (void)
 157 {
 158 }
 159
 160 #include "gtype-cp.h"