dart::ClassDeserializationCluster Class Reference

Inheritance diagram for dart::ClassDeserializationCluster:

Public Member Functions
	ClassDeserializationCluster ()
	~ClassDeserializationCluster ()
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	ReadAlloc (Deserializer *deserializer)=0
virtual void	ReadFill (Deserializer *deserializer)=0
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::DeserializationCluster
void	ReadAllocFixedSize (Deserializer *deserializer, intptr_t instance_size)
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 1080 of file app_snapshot.cc.

Constructor & Destructor Documentation

ClassDeserializationCluster()

dart::ClassDeserializationCluster::ClassDeserializationCluster ( )

inline

Definition at line 1082 of file app_snapshot.cc.

: DeserializationCluster("Class") {}

~ClassDeserializationCluster()

dart::ClassDeserializationCluster::~ClassDeserializationCluster ( )

inline

Definition at line 1083 of file app_snapshot.cc.

{}

Member Function Documentation

ReadAlloc()

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

inlineoverridevirtual

Implements dart::DeserializationCluster.

Definition at line 1085 of file app_snapshot.cc.

                                           {
    predefined_start_index_ = d->next_index();
    intptr_t count = d->ReadUnsigned();
    ClassTable* table = d->isolate_group()->class_table();
    for (intptr_t i = 0; i < count; i++) {
      intptr_t class_id = d->ReadCid();
      ASSERT(table->HasValidClassAt(class_id));
      ClassPtr cls = table->At(class_id);
      ASSERT(cls != nullptr);
      d->AssignRef(cls);
    }
    predefined_stop_index_ = d->next_index();
 
    start_index_ = d->next_index();
    count = d->ReadUnsigned();
    for (intptr_t i = 0; i < count; i++) {
      d->AssignRef(d->Allocate(Class::InstanceSize()));
    }
    stop_index_ = d->next_index();
  }

ReadFill()

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

inlineoverridevirtual

Implements dart::DeserializationCluster.

Definition at line 1106 of file app_snapshot.cc.

                                           {
    Deserializer::Local d(d_);
 
    for (intptr_t id = predefined_start_index_; id < predefined_stop_index_;
         id++) {
      ClassPtr cls = static_cast<ClassPtr>(d.Ref(id));
      d.ReadFromTo(cls);
      intptr_t class_id = d.ReadCid();
      cls->untag()->id_ = class_id;
#if !defined(DART_PRECOMPILED_RUNTIME)
      ASSERT(d_->kind() != Snapshot::kFullAOT);
      cls->untag()->kernel_offset_ = d.Read<uint32_t>();
#endif
      if (!IsInternalVMdefinedClassId(class_id)) {
        cls->untag()->host_instance_size_in_words_ = d.Read<int32_t>();
        cls->untag()->host_next_field_offset_in_words_ = d.Read<int32_t>();
#if defined(DART_PRECOMPILER)
        // Only one pair is serialized. The target field only exists when
        // DART_PRECOMPILER is defined
        cls->untag()->target_instance_size_in_words_ =
            cls->untag()->host_instance_size_in_words_;
        cls->untag()->target_next_field_offset_in_words_ =
            cls->untag()->host_next_field_offset_in_words_;
#endif  // defined(DART_PRECOMPILER)
      } else {
        d.Read<int32_t>();  // Skip.
        d.Read<int32_t>();  // Skip.
      }
      cls->untag()->host_type_arguments_field_offset_in_words_ =
          d.Read<int32_t>();
#if defined(DART_PRECOMPILER)
      cls->untag()->target_type_arguments_field_offset_in_words_ =
          cls->untag()->host_type_arguments_field_offset_in_words_;
#endif  // defined(DART_PRECOMPILER)
      cls->untag()->num_type_arguments_ = d.Read<int16_t>();
      cls->untag()->num_native_fields_ = d.Read<uint16_t>();
#if !defined(DART_PRECOMPILED_RUNTIME)
      ASSERT(d_->kind() != Snapshot::kFullAOT);
      cls->untag()->token_pos_ = d.ReadTokenPosition();
      cls->untag()->end_token_pos_ = d.ReadTokenPosition();
      cls->untag()->implementor_cid_ = d.ReadCid();
#endif  // !defined(DART_PRECOMPILED_RUNTIME)
      cls->untag()->state_bits_ = d.Read<uint32_t>();
      d.ReadUnsigned64();  // Skip unboxed fields bitmap.
    }
 
    ClassTable* table = d_->isolate_group()->class_table();
    for (intptr_t id = start_index_, n = stop_index_; id < n; id++) {
      ClassPtr cls = static_cast<ClassPtr>(d.Ref(id));
      Deserializer::InitializeHeader(cls, kClassCid, Class::InstanceSize());
      d.ReadFromTo(cls);
 
      intptr_t class_id = d.ReadCid();
      ASSERT(class_id >= kNumPredefinedCids);
      cls->untag()->id_ = class_id;
 
#if !defined(DART_PRECOMPILED_RUNTIME)
      ASSERT(d_->kind() != Snapshot::kFullAOT);
      cls->untag()->kernel_offset_ = d.Read<uint32_t>();
#endif
      cls->untag()->host_instance_size_in_words_ = d.Read<int32_t>();
      cls->untag()->host_next_field_offset_in_words_ = d.Read<int32_t>();
      cls->untag()->host_type_arguments_field_offset_in_words_ =
          d.Read<int32_t>();
#if defined(DART_PRECOMPILER)
      cls->untag()->target_instance_size_in_words_ =
          cls->untag()->host_instance_size_in_words_;
      cls->untag()->target_next_field_offset_in_words_ =
          cls->untag()->host_next_field_offset_in_words_;
      cls->untag()->target_type_arguments_field_offset_in_words_ =
          cls->untag()->host_type_arguments_field_offset_in_words_;
#endif  // defined(DART_PRECOMPILER)
      cls->untag()->num_type_arguments_ = d.Read<int16_t>();
      cls->untag()->num_native_fields_ = d.Read<uint16_t>();
#if !defined(DART_PRECOMPILED_RUNTIME)
      ASSERT(d_->kind() != Snapshot::kFullAOT);
      cls->untag()->token_pos_ = d.ReadTokenPosition();
      cls->untag()->end_token_pos_ = d.ReadTokenPosition();
      cls->untag()->implementor_cid_ = d.ReadCid();
#endif  // !defined(DART_PRECOMPILED_RUNTIME)
      cls->untag()->state_bits_ = d.Read<uint32_t>();
 
      table->AllocateIndex(class_id);
      table->SetAt(class_id, cls);
 
      if (!ClassTable::IsTopLevelCid(class_id)) {
        const UnboxedFieldBitmap unboxed_fields_map(d.ReadUnsigned64());
        table->SetUnboxedFieldsMapAt(class_id, unboxed_fields_map);
      }
    }
  }

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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