33 #include "oops/instanceMirrorKlass.hpp"
  34 #include "oops/instanceOop.hpp"
  35 #include "oops/oop.inline.hpp"
  36 #include "oops/symbol.hpp"
  37 #include "runtime/handles.inline.hpp"
  38 #include "utilities/macros.hpp"
  39 
  40 int InstanceMirrorKlass::_offset_of_static_fields = 0;
  41 
  42 int InstanceMirrorKlass::instance_size(KlassHandle k) {
  43   if (k() != NULL && k->is_instance_klass()) {
  44     return align_object_size(size_helper() + InstanceKlass::cast(k())->static_field_size());
  45   }
  46   return size_helper();
  47 }
  48 
  49 instanceOop InstanceMirrorKlass::allocate_instance(KlassHandle k, TRAPS) {
  50   // Query before forming handle.
  51   int size = instance_size(k);
  52   KlassHandle h_k(THREAD, this);
  53   instanceOop i = (instanceOop)CollectedHeap::obj_allocate(h_k, size, CHECK_NULL);
  54 
  55   // Since mirrors can be variable sized because of the static fields, store
  56   // the size in the mirror itself.
  57   java_lang_Class::set_oop_size(i, size);
  58 


  59   return i;
  60 }
  61 
  62 int InstanceMirrorKlass::oop_size(oop obj) const {
  63   return java_lang_Class::oop_size(obj);
  64 }
  65 
  66 int InstanceMirrorKlass::compute_static_oop_field_count(oop obj) {
  67   Klass* k = java_lang_Class::as_Klass(obj);
  68   if (k != NULL && k->is_instance_klass()) {
  69     return InstanceKlass::cast(k)->static_oop_field_count();
  70   }
  71   return 0;
  72 }

  33 #include "oops/instanceMirrorKlass.hpp"
  34 #include "oops/instanceOop.hpp"
  35 #include "oops/oop.inline.hpp"
  36 #include "oops/symbol.hpp"
  37 #include "runtime/handles.inline.hpp"
  38 #include "utilities/macros.hpp"
  39 
  40 int InstanceMirrorKlass::_offset_of_static_fields = 0;
  41 
  42 int InstanceMirrorKlass::instance_size(KlassHandle k) {
  43   if (k() != NULL && k->is_instance_klass()) {
  44     return align_object_size(size_helper() + InstanceKlass::cast(k())->static_field_size());
  45   }
  46   return size_helper();
  47 }
  48 
  49 instanceOop InstanceMirrorKlass::allocate_instance(KlassHandle k, TRAPS) {
  50   // Query before forming handle.
  51   int size = instance_size(k);
  52   KlassHandle h_k(THREAD, this);
  53   int field_offset = java_lang_Class::oop_size_offset();
  54   
  55   assert(field_offset != 0, "must be set");
  56   assert(size > 0, "total object size must be positive: %d", size);

  57   
  58   instanceOop i = (instanceOop)CollectedHeap::class_allocate(h_k, size, field_offset, CHECK_NULL);
  59   // oop_size is set by class_allocate() before the header is set.
  60   return i;
  61 }
  62 
  63 int InstanceMirrorKlass::oop_size(oop obj) const {
  64   return java_lang_Class::oop_size(obj);
  65 }
  66 
  67 int InstanceMirrorKlass::compute_static_oop_field_count(oop obj) {
  68   Klass* k = java_lang_Class::as_Klass(obj);
  69   if (k != NULL && k->is_instance_klass()) {
  70     return InstanceKlass::cast(k)->static_oop_field_count();
  71   }
  72   return 0;
  73 }