C++ oop::is_typeArray方法代码示例

int typeArrayKlass::oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr) {
  assert(obj->is_typeArray(),"must be a type array");
  typeArrayOop t = typeArrayOop(obj);
  // Performance tweak: We skip iterating over the klass pointer since we
  // know that Universe::typeArrayKlass never moves.
  return t->object_size();
}

inline int TypeArrayKlass::oop_oop_iterate_impl(oop obj, ExtendedOopClosure* closure) {
  assert(obj->is_typeArray(),"must be a type array");
  typeArrayOop t = typeArrayOop(obj);
  // Performance tweak: We skip iterating over the klass pointer since we
  // know that Universe::TypeArrayKlass never moves.
  return t->object_size();
}

int typeArrayKlass::oop_adjust_pointers(oop obj) {
  assert(obj->is_typeArray(),"must be a type array");
  typeArrayOop t = typeArrayOop(obj);
  // Performance tweak: We skip iterating over the klass pointer since we
  // know that Universe::typeArrayKlass never moves.
  return t->object_size();
}

object_type ClassifyObjectClosure::classify_object(oop obj, bool count) {
  object_type type = unknown_type;

  Klass* k = obj->blueprint();

  if (k->as_klassOop() == SystemDictionary::Object_klass()) {
    tty->print_cr("Found the class!");
  }

  if (count) {
    k->set_alloc_count(k->alloc_count() + 1);
  }

  if (obj->is_instance()) {
    if (k->oop_is_instanceRef()) {
      type = instanceRef_type;
    } else {
      type = instance_type;
    }
  } else if (obj->is_typeArray()) {
    type = typeArray_type;
  } else if (obj->is_objArray()) {
    type = objArray_type;
  } else if (obj->is_symbol()) {
    type = symbol_type;
  } else if (obj->is_klass()) {
    Klass* k = ((klassOop)obj)->klass_part();
    if (k->oop_is_instance()) {
      type = instanceKlass_type;
    } else {
      type = klass_type;
    }
  } else if (obj->is_method()) {
    type = method_type;
  } else if (obj->is_constMethod()) {
    type = constMethod_type;
  } else if (obj->is_methodData()) {
    ShouldNotReachHere();
  } else if (obj->is_constantPool()) {
    type = constantPool_type;
  } else if (obj->is_constantPoolCache()) {
    type = constantPoolCache_type;
  } else if (obj->is_compiledICHolder()) {
    type = compiledICHolder_type;
  } else {
    ShouldNotReachHere();
  }

  assert(type != unknown_type, "found object of unknown type.");
  return type;
}

  // Return true if oop represents an object that is "visible"
  // to the java world.
  static inline bool visible_oop(oop o) {
    // the sentinel for deleted handles isn't visible
    if (o == JNIHandles::deleted_handle()) {
      return false;
    }

    // instance
    if (o->is_instance()) {
      // instance objects are visible
      if (o->klass() != SystemDictionary::Class_klass()) {
        return true;
      }
      if (java_lang_Class::is_primitive(o)) {
        return true;
      }
      // java.lang.Classes are visible
      Klass* k = java_lang_Class::as_Klass(o);
      if (k->is_klass()) {
        // if it's a class for an object, an object array, or
        // primitive (type) array then it's visible.
        if (k->is_instance_klass()) {
          return true;
        }
        if (k->is_objArray_klass()) {
          return true;
        }
        if (k->is_typeArray_klass()) {
          return true;
        }
      }
      return false;
    }
    // object arrays are visible if they aren't system object arrays
    if (o->is_objArray()) {
        return true;
    }
    // type arrays are visible
    if (o->is_typeArray()) {
      return true;
    }
    // everything else (Method*s, ...) aren't visible
    return false;
  };   // end of visible_oop()

int
typeArrayKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) {
  assert(obj->is_typeArray(),"must be a type array");
  return typeArrayOop(obj)->object_size();
}

void typeArrayKlass::oop_push_contents(PSPromotionManager* pm, oop obj) {
  assert(obj->is_typeArray(),"must be a type array");
}

void typeArrayKlass::oop_follow_contents(ParCompactionManager* cm, oop obj) {
  assert(obj->is_typeArray(),"must be a type array");
  // Performance tweak: We skip iterating over the klass pointer since we
  // know that Universe::typeArrayKlass never moves.
}

int typeArrayKlass::oop_size(oop obj) const {
  assert(obj->is_typeArray(),"must be a type array");
  typeArrayOop t = typeArrayOop(obj);
  return t->object_size();
}

void TypeArrayKlass::oop_push_contents(PSPromotionManager* pm, oop obj) {
  ShouldNotReachHere();
  assert(obj->is_typeArray(),"must be a type array");
}