/*

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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 */

#ifndef SHARE_VM_OOPS_INSTANCEKLASSKLASS_HPP

#define SHARE_VM_OOPS_INSTANCEKLASSKLASS_HPP

#include "oops/klassKlass.hpp"

// An instanceKlassKlass is the klass of an instanceKlass

class instanceKlassKlass : public klassKlass {

 public:

  // Dispatched operation

  bool oop_is_klass() const           { return true; }

  bool oop_is_instanceKlass() const   { return true; }

  int oop_size(oop obj) const;

  int klass_oop_size() const    { return object_size(); }

  // Allocation

  DEFINE_ALLOCATE_PERMANENT(instanceKlassKlass);

  static klassOop create_klass(TRAPS);

                                   int itable_len,

                                   int static_field_size,

                                   unsigned int nonstatic_oop_map_count,

                                   ReferenceType rt,

                                   TRAPS);

  // Casting from klassOop

  static instanceKlassKlass* cast(klassOop k) {

    assert(k->klass_part()->oop_is_klass(), "cast to instanceKlassKlass");

    return (instanceKlassKlass*) k->klass_part();

  }

  // Sizing

  static int header_size()    { return oopDesc::header_size() + sizeof(instanceKlassKlass)/HeapWordSize; }

  int object_size() const     { return align_object_size(header_size()); }

  // Garbage collection

  void oop_follow_contents(oop obj);

  int  oop_adjust_pointers(oop obj);

  bool oop_is_parsable(oop obj) const;

  // Parallel Scavenge and Parallel Old

  PARALLEL_GC_DECLS

  // Iterators

  int oop_oop_iterate(oop obj, OopClosure* blk);

  int oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr);

private:

  // Apply closure to the InstanceKlass oops that are outside the java heap.

  inline void iterate_c_heap_oops(instanceKlass* ik, OopClosure* closure);

 public:

  // Printing

  void oop_print_value_on(oop obj, outputStream* st);

#ifndef PRODUCT

  void oop_print_on(oop obj, outputStream* st);

#endif

  // Verification

  const char* internal_name() const;

  void oop_verify_on(oop obj, outputStream* st);

  // tells whether obj is partially constructed (gc during class loading)

  bool oop_partially_loaded(oop obj) const;

  void oop_set_partially_loaded(oop obj);

};

#endif // SHARE_VM_OOPS_INSTANCEKLASSKLASS_HPP