gcc/cp/cp-lang.c

   1 /* Language-dependent hooks for C++.
   2    Copyright 2001, 2002, 2004, 2007, 2008, 2009 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 3, 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 COPYING3.  If not see
  19 <http://www.gnu.org/licenses/>.  */
  20
  21 #include "config.h"
  22 #include "system.h"
  23 #include "coretypes.h"
  24 #include "tm.h"
  25 #include "tree.h"
  26 #include "cp-tree.h"
  27 #include "c-common.h"
  28 #include "toplev.h"
  29 #include "langhooks.h"
  30 #include "langhooks-def.h"
  31 #include "diagnostic.h"
  32 #include "debug.h"
  33 #include "cp-objcp-common.h"
  34 #include "hashtab.h"
  35
  36 enum c_language_kind c_language = clk_cxx;
  37 static void cp_init_ts (void);
  38 static const char * cxx_dwarf_name (tree t, int verbosity);
  39 static enum classify_record cp_classify_record (tree type);
  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_CLASSIFY_RECORD
  49 #define LANG_HOOKS_CLASSIFY_RECORD cp_classify_record
  50 #undef LANG_HOOKS_GENERIC_TYPE_P
  51 #define LANG_HOOKS_GENERIC_TYPE_P class_tmpl_impl_spec_p
  52
  53 #undef LANG_HOOKS_GET_INNERMOST_GENERIC_PARMS
  54 #define LANG_HOOKS_GET_INNERMOST_GENERIC_PARMS \
  55         get_primary_template_innermost_parameters
  56 #undef LANG_HOOKS_GET_INNERMOST_GENERIC_ARGS
  57 #define LANG_HOOKS_GET_INNERMOST_GENERIC_ARGS \
  58         get_template_innermost_arguments
  59 #undef LANG_HOOKS_GET_ARGUMENT_PACK_ELEMS
  60 #define LANG_HOOKS_GET_ARGUMENT_PACK_ELEMS \
  61         get_template_argument_pack_elems
  62 #undef LANG_HOOKS_GENERIC_GENERIC_PARAMETER_DECL_P
  63 #define LANG_HOOKS_GENERIC_GENERIC_PARAMETER_DECL_P \
  64         template_template_parameter_p
  65
  66 #undef LANG_HOOKS_DECL_PRINTABLE_NAME
  67 #define LANG_HOOKS_DECL_PRINTABLE_NAME  cxx_printable_name
  68 #undef LANG_HOOKS_DWARF_NAME
  69 #define LANG_HOOKS_DWARF_NAME cxx_dwarf_name
  70 #undef LANG_HOOKS_FOLD_OBJ_TYPE_REF
  71 #define LANG_HOOKS_FOLD_OBJ_TYPE_REF cp_fold_obj_type_ref
  72 #undef LANG_HOOKS_INIT_TS
  73 #define LANG_HOOKS_INIT_TS cp_init_ts
  74
  75 /* Each front end provides its own lang hook initializer.  */
  76 const struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;
  77
  78 /* Lang hook routines common to C++ and ObjC++ appear in cp/cp-objcp-common.c;
  79    there should be very few routines below.  */
  80
  81 /* The following function does something real, but only in Objective-C++.  */
  82
  83 tree
  84 objcp_tsubst_copy_and_build (tree t ATTRIBUTE_UNUSED,
  85                              tree args ATTRIBUTE_UNUSED,
  86                              tsubst_flags_t complain ATTRIBUTE_UNUSED,
  87                              tree in_decl ATTRIBUTE_UNUSED,
  88                              bool function_p ATTRIBUTE_UNUSED)
  89 {
  90   return NULL_TREE;
  91 }
  92
  93
  94 static void
  95 cp_init_ts (void)
  96 {
  97   tree_contains_struct[NAMESPACE_DECL][TS_DECL_NON_COMMON] = 1;
  98   tree_contains_struct[USING_DECL][TS_DECL_NON_COMMON] = 1;
  99   tree_contains_struct[TEMPLATE_DECL][TS_DECL_NON_COMMON] = 1;
 100
 101   tree_contains_struct[NAMESPACE_DECL][TS_DECL_WITH_VIS] = 1;
 102   tree_contains_struct[USING_DECL][TS_DECL_WITH_VIS] = 1;
 103   tree_contains_struct[TEMPLATE_DECL][TS_DECL_WITH_VIS] = 1;
 104
 105   tree_contains_struct[NAMESPACE_DECL][TS_DECL_WRTL] = 1;
 106   tree_contains_struct[USING_DECL][TS_DECL_WRTL] = 1;
 107   tree_contains_struct[TEMPLATE_DECL][TS_DECL_WRTL] = 1;
 108
 109   tree_contains_struct[NAMESPACE_DECL][TS_DECL_COMMON] = 1;
 110   tree_contains_struct[USING_DECL][TS_DECL_COMMON] = 1;
 111   tree_contains_struct[TEMPLATE_DECL][TS_DECL_COMMON] = 1;
 112
 113   tree_contains_struct[NAMESPACE_DECL][TS_DECL_MINIMAL] = 1;
 114   tree_contains_struct[USING_DECL][TS_DECL_MINIMAL] = 1;
 115   tree_contains_struct[TEMPLATE_DECL][TS_DECL_MINIMAL] = 1;
 116
 117   init_shadowed_var_for_decl ();
 118
 119 }
 120
 121 static const char *
 122 cxx_dwarf_name (tree t, int verbosity)
 123 {
 124   gcc_assert (DECL_P (t));
 125
 126   if (verbosity >= 2)
 127     return decl_as_string (t,
 128                            TFF_DECL_SPECIFIERS | TFF_UNQUALIFIED_NAME
 129                            | TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS);
 130
 131   return cxx_printable_name (t, verbosity);
 132 }
 133
 134 static enum classify_record
 135 cp_classify_record (tree type)
 136 {
 137   if (CLASSTYPE_DECLARED_CLASS (type))
 138     return RECORD_IS_CLASS;
 139
 140   return RECORD_IS_STRUCT;
 141 }
 142
 143 void
 144 finish_file (void)
 145 {
 146 }
 147
 148 #include "gtype-cp.h"