v8::internal::IntrusivePrototypeTransitionIterator Class Reference

Collaboration diagram for v8::internal::IntrusivePrototypeTransitionIterator:

Public Member Functions
	IntrusivePrototypeTransitionIterator (Map *map, HeapObject *proto_trans, Object *constructor)
void	StartIfNotStarted ()
bool	IsIterating ()
Map *	Next ()

Private Member Functions
Object **	IteratorField ()
int	NumberOfTransitions ()
Map *	GetTransition (int transitionNumber)
int	IndexFor (int transitionNumber)

Private Attributes
Map *	map_
HeapObject *	proto_trans_
Object *	constructor_

Detailed Description

Definition at line 7128 of file objects.cc.

Constructor & Destructor Documentation

IntrusivePrototypeTransitionIterator()

v8::internal::IntrusivePrototypeTransitionIterator::IntrusivePrototypeTransitionIterator ( Map *  map, HeapObject *  proto_trans, Object *  constructor  )

inline

Definition at line 7130 of file objects.cc.

      : map_(map), proto_trans_(proto_trans), constructor_(constructor) { }

Member Function Documentation

GetTransition()

Map* v8::internal::IntrusivePrototypeTransitionIterator::GetTransition ( int  transitionNumber )

inlineprivate

Definition at line 7168 of file objects.cc.

                                           {
    FixedArray* proto_trans = reinterpret_cast<FixedArray*>(proto_trans_);
    return Map::cast(proto_trans->get(IndexFor(transitionNumber)));
  }

References v8::internal::FixedArray::get().

Here is the call graph for this function:

IndexFor()

int v8::internal::IntrusivePrototypeTransitionIterator::IndexFor ( int  transitionNumber )

inlineprivate

Definition at line 7173 of file objects.cc.

                                     {
    return Map::kProtoTransitionHeaderSize +
        Map::kProtoTransitionMapOffset +
        transitionNumber * Map::kProtoTransitionElementsPerEntry;
  }

References v8::internal::Map::kProtoTransitionElementsPerEntry, v8::internal::Map::kProtoTransitionHeaderSize, and v8::internal::Map::kProtoTransitionMapOffset.

IsIterating()

bool v8::internal::IntrusivePrototypeTransitionIterator::IsIterating ( )

inline

Definition at line 7141 of file objects.cc.

                     {
    return (*IteratorField())->IsSmi() &&
           Smi::cast(*IteratorField())->value() >= 0;
  }

Referenced by v8::internal::TraversableMap::ChildIteratorNext().

Here is the caller graph for this function:

IteratorField()

Object** v8::internal::IntrusivePrototypeTransitionIterator::IteratorField ( )

inlineprivate

Definition at line 7158 of file objects.cc.

                           {
    return HeapObject::RawField(map_, Map::kConstructorOffset);
  }

References v8::internal::Map::kConstructorOffset, and v8::internal::HeapObject::RawField().

Here is the call graph for this function:

Next()

Map* v8::internal::IntrusivePrototypeTransitionIterator::Next ( )

inline

Definition at line 7146 of file objects.cc.

              {
    DCHECK(IsIterating());
    int transitionNumber = Smi::cast(*IteratorField())->value();
    if (transitionNumber < NumberOfTransitions()) {
      *IteratorField() = Smi::FromInt(transitionNumber + 1);
      return GetTransition(transitionNumber);
    }
    *IteratorField() = constructor_;
    return NULL;
  }

References DCHECK, v8::internal::Smi::FromInt(), and NULL.

Referenced by v8::internal::TraversableMap::ChildIteratorNext().

Here is the call graph for this function:

Here is the caller graph for this function:

NumberOfTransitions()

int v8::internal::IntrusivePrototypeTransitionIterator::NumberOfTransitions ( )

inlineprivate

Definition at line 7162 of file objects.cc.

                            {
    FixedArray* proto_trans = reinterpret_cast<FixedArray*>(proto_trans_);
    Object* num = proto_trans->get(Map::kProtoTransitionNumberOfEntriesOffset);
    return Smi::cast(num)->value();
  }

References v8::internal::FixedArray::get(), and v8::internal::Map::kProtoTransitionNumberOfEntriesOffset.

Here is the call graph for this function:

StartIfNotStarted()

void v8::internal::IntrusivePrototypeTransitionIterator::StartIfNotStarted ( )

inline

Definition at line 7134 of file objects.cc.

                           {
    if (!(*IteratorField())->IsSmi()) {
      DCHECK(*IteratorField() == constructor_);
      *IteratorField() = Smi::FromInt(0);
    }
  }

References DCHECK, and v8::internal::Smi::FromInt().

Referenced by v8::internal::TraversableMap::ChildIteratorNext().

Here is the call graph for this function:

Here is the caller graph for this function:

Member Data Documentation

constructor_

Object* v8::internal::IntrusivePrototypeTransitionIterator::constructor_

private

Definition at line 7181 of file objects.cc.

map_

Map* v8::internal::IntrusivePrototypeTransitionIterator::map_

private

Definition at line 7179 of file objects.cc.

proto_trans_

HeapObject* v8::internal::IntrusivePrototypeTransitionIterator::proto_trans_

private

Definition at line 7180 of file objects.cc.

---

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

• /mnt/V8SourceCode/src/objects.cc