8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef SHARE_VM_OOPS_KLASS_HPP
  26 #define SHARE_VM_OOPS_KLASS_HPP
  27 

  28 #include "memory/iterator.hpp"
  29 #include "memory/memRegion.hpp"
  30 #include "memory/specialized_oop_closures.hpp"
  31 #include "oops/metadata.hpp"
  32 #include "oops/oop.hpp"
  33 #include "trace/traceMacros.hpp"
  34 #include "utilities/accessFlags.hpp"
  35 #include "utilities/macros.hpp"
  36 
  37 //
  38 // A Klass provides:
  39 //  1: language level class object (method dictionary etc.)
  40 //  2: provide vm dispatch behavior for the object
  41 // Both functions are combined into one C++ class.
  42 
  43 // One reason for the oop/klass dichotomy in the implementation is
  44 // that we don't want a C++ vtbl pointer in every object.  Thus,
  45 // normal oops don't have any virtual functions.  Instead, they
  46 // forward all "virtual" functions to their klass, which does have
  47 // a vtbl and does the C++ dispatch depending on the object's
  48 // actual type.  (See oop.inline.hpp for some of the forwarding code.)
  49 // ALL FUNCTIONS IMPLEMENTING THIS DISPATCH ARE PREFIXED WITH "oop_"!
  50 

   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef SHARE_VM_OOPS_KLASS_HPP
  26 #define SHARE_VM_OOPS_KLASS_HPP
  27 
  28 #include "gc/shared/specialized_oop_closures.hpp"
  29 #include "memory/iterator.hpp"
  30 #include "memory/memRegion.hpp"

  31 #include "oops/metadata.hpp"
  32 #include "oops/oop.hpp"
  33 #include "trace/traceMacros.hpp"
  34 #include "utilities/accessFlags.hpp"
  35 #include "utilities/macros.hpp"
  36 
  37 //
  38 // A Klass provides:
  39 //  1: language level class object (method dictionary etc.)
  40 //  2: provide vm dispatch behavior for the object
  41 // Both functions are combined into one C++ class.
  42 
  43 // One reason for the oop/klass dichotomy in the implementation is
  44 // that we don't want a C++ vtbl pointer in every object.  Thus,
  45 // normal oops don't have any virtual functions.  Instead, they
  46 // forward all "virtual" functions to their klass, which does have
  47 // a vtbl and does the C++ dispatch depending on the object's
  48 // actual type.  (See oop.inline.hpp for some of the forwarding code.)
  49 // ALL FUNCTIONS IMPLEMENTING THIS DISPATCH ARE PREFIXED WITH "oop_"!
  50