v8::internal::VisitorDispatchTable< Callback > Class Template Reference

#include <objects-visiting.h>

Inheritance diagram for v8::internal::VisitorDispatchTable< Callback >:

Collaboration diagram for v8::internal::VisitorDispatchTable< Callback >:

Public Member Functions
void	CopyFrom (VisitorDispatchTable *other)
Callback	GetVisitorById (StaticVisitorBase::VisitorId id)
Callback	GetVisitor (Map *map)
void	Register (StaticVisitorBase::VisitorId id, Callback callback)
template<typename Visitor , StaticVisitorBase::VisitorId base, StaticVisitorBase::VisitorId generic, int object_size_in_words>
void	RegisterSpecialization ()
template<typename Visitor , StaticVisitorBase::VisitorId base, StaticVisitorBase::VisitorId generic>
void	RegisterSpecializations ()

Private Attributes
base::AtomicWord	callbacks_ [StaticVisitorBase::kVisitorIdCount]

Detailed Description

template<typename Callback>
class v8::internal::VisitorDispatchTable< Callback >

Definition at line 132 of file objects-visiting.h.

Member Function Documentation

CopyFrom()

template<typename Callback >

void v8::internal::VisitorDispatchTable< Callback >::CopyFrom ( VisitorDispatchTable< Callback > *  other )

inline

Definition at line 134 of file objects-visiting.h.

                                             {
    // We are not using memcpy to guarantee that during update
    // every element of callbacks_ array will remain correct
    // pointer (memcpy might be implemented as a byte copying loop).
    for (int i = 0; i < StaticVisitorBase::kVisitorIdCount; i++) {
      base::NoBarrier_Store(&callbacks_[i], other->callbacks_[i]);
    }
  }

References v8::internal::VisitorDispatchTable< Callback >::callbacks_, v8::internal::StaticVisitorBase::kVisitorIdCount, and v8::base::NoBarrier_Store().

Referenced by v8::internal::Heap::SelectScavengingVisitorsTable().

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GetVisitor()

template<typename Callback >

Callback v8::internal::VisitorDispatchTable< Callback >::GetVisitor ( Map *  map )

inline

Definition at line 147 of file objects-visiting.h.

                                       {
    return reinterpret_cast<Callback>(callbacks_[map->visitor_id()]);
  }

References v8::internal::VisitorDispatchTable< Callback >::callbacks_, and map.

Referenced by v8::internal::Heap::DoScavengeObject().

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GetVisitorById()

template<typename Callback >

Callback v8::internal::VisitorDispatchTable< Callback >::GetVisitorById ( StaticVisitorBase::VisitorId  id )

inline

Definition at line 143 of file objects-visiting.h.

                                                                {
    return reinterpret_cast<Callback>(callbacks_[id]);
  }

References v8::internal::VisitorDispatchTable< Callback >::callbacks_.

Referenced by v8::internal::Heap::SelectScavengingVisitorsTable().

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Register()

template<typename Callback >

void v8::internal::VisitorDispatchTable< Callback >::Register ( StaticVisitorBase::VisitorId  id, Callback  callback  )

inline

Definition at line 151 of file objects-visiting.h.

                                                                  {
    DCHECK(id < StaticVisitorBase::kVisitorIdCount);  // id is unsigned.
    callbacks_[id] = reinterpret_cast<base::AtomicWord>(callback);
  }

References v8::internal::VisitorDispatchTable< Callback >::callbacks_, DCHECK, and v8::internal::StaticVisitorBase::kVisitorIdCount.

Referenced by v8::internal::ScavengingVisitor< marks_handling, logging_and_profiling_mode >::Initialize(), v8::internal::VisitorDispatchTable< Callback >::RegisterSpecialization(), v8::internal::VisitorDispatchTable< Callback >::RegisterSpecializations(), and v8::internal::Heap::SelectScavengingVisitorsTable().

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RegisterSpecialization()

template<typename Callback >

template<typename Visitor , StaticVisitorBase::VisitorId base, StaticVisitorBase::VisitorId generic, int object_size_in_words>

void v8::internal::VisitorDispatchTable< Callback >::RegisterSpecialization ( )

inline

Definition at line 158 of file objects-visiting.h.

                                {
    static const int size = object_size_in_words * kPointerSize;
    Register(StaticVisitorBase::GetVisitorIdForSize(base, generic, size),
             &Visitor::template VisitSpecialized<size>);
  }

References v8::internal::StaticVisitorBase::GetVisitorIdForSize(), v8::internal::kPointerSize, v8::internal::VisitorDispatchTable< Callback >::Register(), and size.

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RegisterSpecializations()

template<typename Callback >

template<typename Visitor , StaticVisitorBase::VisitorId base, StaticVisitorBase::VisitorId generic>

void v8::internal::VisitorDispatchTable< Callback >::RegisterSpecializations ( )

inline

Definition at line 167 of file objects-visiting.h.

                                 {
    STATIC_ASSERT((generic - base + StaticVisitorBase::kMinObjectSizeInWords) ==
                  10);
    RegisterSpecialization<Visitor, base, generic, 2>();
    RegisterSpecialization<Visitor, base, generic, 3>();
    RegisterSpecialization<Visitor, base, generic, 4>();
    RegisterSpecialization<Visitor, base, generic, 5>();
    RegisterSpecialization<Visitor, base, generic, 6>();
    RegisterSpecialization<Visitor, base, generic, 7>();
    RegisterSpecialization<Visitor, base, generic, 8>();
    RegisterSpecialization<Visitor, base, generic, 9>();
    Register(generic, &Visitor::Visit);
  }

References v8::internal::StaticVisitorBase::kMinObjectSizeInWords, v8::internal::VisitorDispatchTable< Callback >::Register(), and v8::internal::STATIC_ASSERT().

Referenced by v8::internal::ScavengingVisitor< marks_handling, logging_and_profiling_mode >::Initialize().

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Member Data Documentation

callbacks_

template<typename Callback >

base::AtomicWord v8::internal::VisitorDispatchTable< Callback >::callbacks_[StaticVisitorBase::kVisitorIdCount]

private

Definition at line 182 of file objects-visiting.h.

Referenced by v8::internal::VisitorDispatchTable< Callback >::CopyFrom(), v8::internal::VisitorDispatchTable< Callback >::GetVisitor(), v8::internal::VisitorDispatchTable< Callback >::GetVisitorById(), and v8::internal::VisitorDispatchTable< Callback >::Register().

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

• /mnt/V8SourceCode/src/heap/objects-visiting.h