dart::InstanceDeserializationCluster Class Reference

Inheritance diagram for dart::InstanceDeserializationCluster:

Public Member Functions
	InstanceDeserializationCluster (intptr_t cid, bool is_canonical, bool is_immutable, bool is_root_unit)
	~InstanceDeserializationCluster ()
void	ReadAlloc (Deserializer *d) override
void	ReadFill (Deserializer *d_) override
Public Member Functions inherited from dart::DeserializationCluster
	DeserializationCluster (const char *name, bool is_canonical=false, bool is_immutable=false)
virtual	~DeserializationCluster ()
virtual void	PostLoad (Deserializer *deserializer, const Array &refs)
const char *	name () const
bool	is_canonical () const
Public Member Functions inherited from dart::ZoneAllocated
	ZoneAllocated ()
void *	operator new (size_t size)
void *	operator new (size_t size, Zone *zone)
void	operator delete (void *pointer)

Additional Inherited Members
Protected Member Functions inherited from dart::AbstractInstanceDeserializationCluster
	AbstractInstanceDeserializationCluster (const char *name, bool is_canonical, bool is_root_unit)
Protected Member Functions inherited from dart::DeserializationCluster
void	ReadAllocFixedSize (Deserializer *deserializer, intptr_t instance_size)
Protected Attributes inherited from dart::AbstractInstanceDeserializationCluster
const bool	is_root_unit_
Protected Attributes inherited from dart::DeserializationCluster
const char *const	name_
const bool	is_canonical_
const bool	is_immutable_
intptr_t	start_index_
intptr_t	stop_index_

Detailed Description

Definition at line 4584 of file app_snapshot.cc.

Constructor & Destructor Documentation

InstanceDeserializationCluster()

dart::InstanceDeserializationCluster::InstanceDeserializationCluster ( intptr_t  cid, bool  is_canonical, bool  is_immutable, bool  is_root_unit  )

inlineexplicit

Definition at line 4587 of file app_snapshot.cc.

      : AbstractInstanceDeserializationCluster("Instance",
                                               is_canonical,
                                               is_root_unit),
        cid_(cid),
        is_immutable_(is_immutable) {}

~InstanceDeserializationCluster()

dart::InstanceDeserializationCluster::~InstanceDeserializationCluster ( )

inline

Definition at line 4596 of file app_snapshot.cc.

{}

Member Function Documentation

ReadAlloc()

void dart::InstanceDeserializationCluster::ReadAlloc ( Deserializer *  d )

inlineoverridevirtual

Implements dart::DeserializationCluster.

Definition at line 4598 of file app_snapshot.cc.

                                           {
    start_index_ = d->next_index();
    const intptr_t count = d->ReadUnsigned();
    next_field_offset_in_words_ = d->Read<int32_t>();
    instance_size_in_words_ = d->Read<int32_t>();
    intptr_t instance_size = Object::RoundedAllocationSize(
        instance_size_in_words_ * kCompressedWordSize);
    for (intptr_t i = 0; i < count; i++) {
      d->AssignRef(d->Allocate(instance_size));
    }
    stop_index_ = d->next_index();
  }

ReadFill()

void dart::InstanceDeserializationCluster::ReadFill ( Deserializer *  d_ )

inlineoverridevirtual

Implements dart::DeserializationCluster.

Definition at line 4611 of file app_snapshot.cc.

                                           {
    Deserializer::Local d(d_);
 
    const intptr_t cid = cid_;
    const bool mark_canonical = is_root_unit_ && is_canonical();
    const bool is_immutable = is_immutable_;
    intptr_t next_field_offset = next_field_offset_in_words_
                                 << kCompressedWordSizeLog2;
    intptr_t instance_size = Object::RoundedAllocationSize(
        instance_size_in_words_ * kCompressedWordSize);
    const UnboxedFieldBitmap unboxed_fields_bitmap(d.ReadUnsigned64());
 
    for (intptr_t id = start_index_, n = stop_index_; id < n; id++) {
      InstancePtr instance = static_cast<InstancePtr>(d.Ref(id));
      Deserializer::InitializeHeader(instance, cid, instance_size,
                                     mark_canonical, is_immutable);
      intptr_t offset = Instance::NextFieldOffset();
      while (offset < next_field_offset) {
        if (unboxed_fields_bitmap.Get(offset / kCompressedWordSize)) {
          compressed_uword* p = reinterpret_cast<compressed_uword*>(
              reinterpret_cast<uword>(instance->untag()) + offset);
          // Reads 32 bits of the unboxed value at a time
          *p = d.ReadWordWith32BitReads();
        } else {
          CompressedObjectPtr* p = reinterpret_cast<CompressedObjectPtr*>(
              reinterpret_cast<uword>(instance->untag()) + offset);
          *p = d.ReadRef();
        }
        offset += kCompressedWordSize;
      }
      while (offset < instance_size) {
        CompressedObjectPtr* p = reinterpret_cast<CompressedObjectPtr*>(
            reinterpret_cast<uword>(instance->untag()) + offset);
        *p = Object::null();
        offset += kCompressedWordSize;
      }
      ASSERT(offset == instance_size);
    }
  }

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

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