manes/rtti.cpp

   1 /* Quarn OS
   2  *
   3  * RTTI support
   4  *
   5  * Copyright (C) 2008-2009 Pawel Dziepak
   6  *
   7  * This program 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 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program 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 along
  18  * with this program; if not, write to the Free Software Foundation, Inc.,
  19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  */
  22
  23 #include "typeinfo"
  24
  25 __cxxabiv1::__fundamental_type_info::~__fundamental_type_info() {}
  26
  27 __cxxabiv1::__class_type_info::~__class_type_info() {}
  28
  29 bool __cxxabiv1::__class_type_info::__do_upcast(const __cxxabiv1::__class_type_info *info, void **) const {
  30         return *this == *info;
  31 }
  32
  33 __cxxabiv1::__si_class_type_info::~__si_class_type_info() {}
  34
  35 bool __cxxabiv1::__si_class_type_info::__do_upcast(const __cxxabiv1::__class_type_info *info, void **obj) const {
  36         if (__class_type_info::__do_upcast(info, obj))
  37                 return true;
  38
  39         return __base_type->__do_upcast(info, obj);
  40 }
  41
  42 __cxxabiv1::__vmi_class_type_info::~__vmi_class_type_info() {}
  43
  44 bool __cxxabiv1::__vmi_class_type_info::__do_upcast(const __cxxabiv1::__class_type_info *info, void **obj) const {
  45         if (__class_type_info::__do_upcast(info, obj))
  46                 return true;
  47
  48          for (unsigned int i = 0; i < __base_count; i++) {
  49                 if (__base_info[i].__base_type->__do_upcast(info, obj)) {
  50                         *obj = (void*)((unsigned int)*obj + (__base_info[i].__offset_flags >> 8));
  51                         return true;
  52                 }
  53         }
  54
  55         return false;
  56 }
  57
  58 __cxxabiv1::__pbase_type_info::~__pbase_type_info() {}
  59
  60 bool __cxxabiv1::__pbase_type_info::__do_upcast(const __cxxabiv1::__class_type_info *dst, void **) const {
  61         /* ??? */
  62         return false; //__pointee->__do_upcast(dst, 0);
  63 }
  64
  65 bool __cxxabiv1::__pbase_type_info::__is_pointer_p() const {
  66         return true;
  67 }
  68
  69
  70 __cxxabiv1::__pointer_type_info::~__pointer_type_info() {}
  71
  72 std::type_info::~type_info() {}
  73
  74 bool std::type_info::__is_pointer_p() const {
  75         return false;
  76 }
  77
  78 bool std::type_info::__is_function_p() const {
  79         return false;
  80 }
  81
  82 bool std::type_info::__do_catch(const type_info *, void **, unsigned int) const {
  83         return false;
  84 }
  85
  86 bool std::type_info::__do_upcast(const __cxxabiv1::__class_type_info *, void **) const {
  87         return false;
  88 }
  89
  90 extern "C" std::type_info const &__cxa_bad_typeid () {
  91         return typeid (void);
  92 }