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

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 *

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#ifndef SHARE_VM_OOPS_INSTANCEMIRRORKLASS_INLINE_HPP

#define SHARE_VM_OOPS_INSTANCEMIRRORKLASS_INLINE_HPP

#include "classfile/javaClasses.hpp"

#include "oops/instanceKlass.inline.hpp"

#include "oops/instanceMirrorKlass.hpp"

#include "oops/klass.hpp"

#include "oops/oop.inline.hpp"

#include "utilities/debug.hpp"

#include "utilities/globalDefinitions.hpp"

#include "utilities/macros.hpp"

template <bool nv, typename T, class OopClosureType>

void InstanceMirrorKlass::oop_oop_iterate_statics_specialized(oop obj, OopClosureType* closure) {

  T* p         = (T*)start_of_static_fields(obj);

  T* const end = p + java_lang_Class::static_oop_field_count(obj);

  for (; p < end; ++p) {

    Devirtualizer<nv>::do_oop(closure, p);

  }

}

template <bool nv, class OopClosureType>

void InstanceMirrorKlass::oop_oop_iterate_statics(oop obj, OopClosureType* closure) {

  if (UseCompressedOops) {

    oop_oop_iterate_statics_specialized<nv, narrowOop>(obj, closure);

  } else {

    oop_oop_iterate_statics_specialized<nv, oop>(obj, closure);

  }

}

template <bool nv, class OopClosureType>

void InstanceMirrorKlass::oop_oop_iterate(oop obj, OopClosureType* closure) {

  InstanceKlass::oop_oop_iterate<nv>(obj, closure);

  if (Devirtualizer<nv>::do_metadata(closure)) {

    Klass* klass = java_lang_Class::as_Klass(obj);

    // We'll get NULL for primitive mirrors.

    if (klass != NULL) {

      if (klass->is_instance_klass() && InstanceKlass::cast(klass)->is_anonymous()) {

        // An anonymous class doesn't have its own class loader, so when handling

        // the java mirror for an anonymous class we need to make sure its class

        // loader data is claimed, this is done by calling do_cld explicitly.

        // For non-anonymous classes the call to do_cld is made when the class

        // loader itself is handled.

        Devirtualizer<nv>::do_cld(closure, klass->class_loader_data());

      } else {

        Devirtualizer<nv>::do_klass(closure, klass);

      }

    } else {

      // If klass is NULL then this a mirror for a primitive type.

      // We don't have to follow them, since they are handled as strong

      // roots in Universe::oops_do.

      assert(java_lang_Class::is_primitive(obj), "Sanity check");

    }

  }

  oop_oop_iterate_statics<nv>(obj, closure);

}

#if INCLUDE_ALL_GCS

template <bool nv, class OopClosureType>

void InstanceMirrorKlass::oop_oop_iterate_reverse(oop obj, OopClosureType* closure) {

  InstanceKlass::oop_oop_iterate_reverse<nv>(obj, closure);

  InstanceMirrorKlass::oop_oop_iterate_statics<nv>(obj, closure);

}

#endif

template <bool nv, typename T, class OopClosureType>

void InstanceMirrorKlass::oop_oop_iterate_statics_specialized_bounded(oop obj,

                                                                     OopClosureType* closure,

                                                                     MemRegion mr) {

  T* p   = (T*)start_of_static_fields(obj);

  T* end = p + java_lang_Class::static_oop_field_count(obj);

  T* const l   = (T*)mr.start();

  T* const h   = (T*)mr.end();

  assert(mask_bits((intptr_t)l, sizeof(T)-1) == 0 &&

         mask_bits((intptr_t)h, sizeof(T)-1) == 0,

         "bounded region must be properly aligned");

  if (p < l) {

    p = l;

  }

  if (end > h) {

    end = h;

  }

  for (;p < end; ++p) {

    Devirtualizer<nv>::do_oop(closure, p);

  }

}

template <bool nv, class OopClosureType>

void InstanceMirrorKlass::oop_oop_iterate_statics_bounded(oop obj, OopClosureType* closure, MemRegion mr) {

  if (UseCompressedOops) {

    oop_oop_iterate_statics_specialized_bounded<nv, narrowOop>(obj, closure, mr);

  } else {

    oop_oop_iterate_statics_specialized_bounded<nv, oop>(obj, closure, mr);

  }

}

template <bool nv, class OopClosureType>

void InstanceMirrorKlass::oop_oop_iterate_bounded(oop obj, OopClosureType* closure, MemRegion mr) {

  InstanceKlass::oop_oop_iterate_bounded<nv>(obj, closure, mr);

  if (Devirtualizer<nv>::do_metadata(closure)) {

    if (mr.contains(obj)) {

      Klass* klass = java_lang_Class::as_Klass(obj);

      // We'll get NULL for primitive mirrors.

      if (klass != NULL) {

        Devirtualizer<nv>::do_klass(closure, klass);

      }

    }

  }

  oop_oop_iterate_statics_bounded<nv>(obj, closure, mr);

}

#define ALL_INSTANCE_MIRROR_KLASS_OOP_OOP_ITERATE_DEFN(OopClosureType, nv_suffix)  \

  OOP_OOP_ITERATE_DEFN(          InstanceMirrorKlass, OopClosureType, nv_suffix)   \

  OOP_OOP_ITERATE_DEFN_BOUNDED(  InstanceMirrorKlass, OopClosureType, nv_suffix)   \

  OOP_OOP_ITERATE_DEFN_BACKWARDS(InstanceMirrorKlass, OopClosureType, nv_suffix)

#endif // SHARE_VM_OOPS_INSTANCEMIRRORKLASS_INLINE_HPP