dart::WriteBarrierUpdateVisitor Class Reference

Inheritance diagram for dart::WriteBarrierUpdateVisitor:

Public Member Functions
	WriteBarrierUpdateVisitor (Thread *thread, ObjectPtr obj)
void	VisitPointers (ObjectPtr *from, ObjectPtr *to) override
Public Member Functions inherited from dart::ObjectPointerVisitor
	ObjectPointerVisitor (IsolateGroup *isolate_group)
virtual	~ObjectPointerVisitor ()
IsolateGroup *	isolate_group () const
virtual void	VisitTypedDataViewPointers (TypedDataViewPtr view, CompressedObjectPtr *first, CompressedObjectPtr *last)
virtual void	VisitPointers (ObjectPtr *first, ObjectPtr *last)=0
void	VisitCompressedPointers (uword heap_base, CompressedObjectPtr *first, CompressedObjectPtr *last)
void	VisitPointers (ObjectPtr *p, intptr_t len)
void	VisitPointer (ObjectPtr *p)
const char *	gc_root_type () const
void	set_gc_root_type (const char *gc_root_type)
void	clear_gc_root_type ()
virtual bool	visit_weak_persistent_handles () const
virtual bool	trace_values_through_fields () const
const ClassTable *	class_table () const
virtual bool	CanVisitSuspendStatePointers (SuspendStatePtr suspend_state)

Detailed Description

Definition at line 2829 of file object.cc.

Constructor & Destructor Documentation

WriteBarrierUpdateVisitor()

dart::WriteBarrierUpdateVisitor::WriteBarrierUpdateVisitor ( Thread *  thread, ObjectPtr  obj  )

inlineexplicit

Definition at line 2831 of file object.cc.

      : ObjectPointerVisitor(thread->isolate_group()),
        thread_(thread),
        old_obj_(obj) {
    ASSERT(old_obj_->IsOldObject());
  }

Member Function Documentation

VisitPointers()

void dart::WriteBarrierUpdateVisitor::VisitPointers ( ObjectPtr *  from, ObjectPtr *  to  )

inlineoverridevirtual

Implements dart::ObjectPointerVisitor.

Definition at line 2838 of file object.cc.

                                                              {
    if (old_obj_->IsArray()) {
      for (ObjectPtr* slot = from; slot <= to; ++slot) {
        ObjectPtr value = *slot;
        if (value->IsHeapObject()) {
          old_obj_->untag()->CheckArrayPointerStore(slot, value, thread_);
        }
      }
    } else {
      for (ObjectPtr* slot = from; slot <= to; ++slot) {
        ObjectPtr value = *slot;
        if (value->IsHeapObject()) {
          old_obj_->untag()->CheckHeapPointerStore(value, thread_);
        }
      }
    }
  }

---

The documentation for this class was generated from the following file:

• third_party/dart-lang/sdk/runtime/vm/object.cc