dart::Deduper< T, S > Class Template Reference

Inheritance diagram for dart::Deduper< T, S >:

Public Member Functions
	Deduper (Zone *zone)
virtual	~Deduper ()
Public Member Functions inherited from dart::ValueObject
	ValueObject ()
	~ValueObject ()

Protected Member Functions
virtual bool	IsCorrectType (const Object &obj) const
virtual bool	CanCanonicalize (const T &t) const
bool	ShouldAdd (const Object &obj) const
void	AddCanonical (const T &obj)
void	AddVMBaseObjects ()
T::ObjectPtrType	Dedup (const T &obj)

Protected Attributes
Zone *const	zone_
DirectChainedHashMap< S >	canonical_objects_

Detailed Description

template<typename T, typename S>
class dart::Deduper< T, S >

Definition at line 294 of file program_visitor.cc.

Constructor & Destructor Documentation

Deduper()

template<typename T , typename S >

dart::Deduper< T, S >::Deduper ( Zone *  zone )

inlineexplicit

Definition at line 296 of file program_visitor.cc.

: zone_(zone), canonical_objects_(zone) {}

~Deduper()

template<typename T , typename S >

virtual dart::Deduper< T, S >::~Deduper ( )

inlinevirtual

Definition at line 297 of file program_visitor.cc.

{}

Member Function Documentation

AddCanonical()

template<typename T , typename S >

void dart::Deduper< T, S >::AddCanonical ( const T &  obj )

inlineprotected

Definition at line 315 of file program_visitor.cc.

                                  {
    if (!ShouldAdd(obj)) return;
    ASSERT(!canonical_objects_.HasKey(&obj));
    canonical_objects_.Insert(&T::ZoneHandle(zone_, obj.ptr()));
  }

AddVMBaseObjects()

template<typename T , typename S >

void dart::Deduper< T, S >::AddVMBaseObjects ( )

inlineprotected

Definition at line 321 of file program_visitor.cc.

                          {
    const auto& object_table = Object::vm_isolate_snapshot_object_table();
    auto& obj = Object::Handle(zone_);
    for (intptr_t i = 0; i < object_table.Length(); i++) {
      obj = object_table.At(i);
      if (!ShouldAdd(obj)) continue;
      AddCanonical(T::Cast(obj));
    }
  }

CanCanonicalize()

template<typename T , typename S >

virtual bool dart::Deduper< T, S >::CanCanonicalize ( const T &  t ) const

inlineprotectedvirtual

Definition at line 307 of file program_visitor.cc.

{ return true; }

Dedup()

template<typename T , typename S >

T::ObjectPtrType dart::Deduper< T, S >::Dedup ( const T &  obj )

inlineprotected

Definition at line 331 of file program_visitor.cc.

                                              {
    if (ShouldAdd(obj)) {
      if (auto const canonical = canonical_objects_.LookupValue(&obj)) {
        return canonical->ptr();
      }
      AddCanonical(obj);
    }
    return obj.ptr();
  }

IsCorrectType()

template<typename T , typename S >

virtual bool dart::Deduper< T, S >::IsCorrectType ( const Object &  obj ) const

inlineprotectedvirtual

Definition at line 302 of file program_visitor.cc.

                                                      {
    return obj.GetClassId() == T::kClassId;
  }

ShouldAdd()

template<typename T , typename S >

bool dart::Deduper< T, S >::ShouldAdd ( const Object &  obj ) const

inlineprotected

Definition at line 311 of file program_visitor.cc.

                                          {
    return !obj.IsNull() && IsCorrectType(obj) && CanCanonicalize(T::Cast(obj));
  }

Member Data Documentation

canonical_objects_

template<typename T , typename S >

DirectChainedHashMap<S> dart::Deduper< T, S >::canonical_objects_

protected

Definition at line 342 of file program_visitor.cc.

zone_

template<typename T , typename S >

Zone* const dart::Deduper< T, S >::zone_

protected

Definition at line 341 of file program_visitor.cc.

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

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