#include <object.h>

Inheritance diagram for dart::Record:

Classes
struct	ArrayTraits

Public Member Functions
intptr_t	num_fields () const

RecordShape	shape () const

ObjectPtr	FieldAt (intptr_t field_index) const

void	SetFieldAt (intptr_t field_index, const Object &value) const

virtual bool	CanonicalizeEquals (const Instance &other) const

virtual uint32_t	CanonicalizeHash () const

virtual void	CanonicalizeFieldsLocked (Thread *thread) const

RecordTypePtr	GetRecordType () const

intptr_t	GetFieldIndexByName (Thread *thread, const String &field_name) const

ArrayPtr	GetFieldNames (Thread *thread) const

Public Member Functions inherited from dart::Instance
virtual bool	OperatorEquals (const Instance &other) const

bool	IsIdenticalTo (const Instance &other) const

intptr_t	SizeFromClass () const

InstancePtr	Canonicalize (Thread *thread) const

virtual InstancePtr	CanonicalizeLocked (Thread *thread) const

InstancePtr	CopyShallowToOldSpace (Thread *thread) const

ObjectPtr	GetField (const Field &field) const

void	SetField (const Field &field, const Object &value) const

AbstractTypePtr	GetType (Heap::Space space) const

virtual TypeArgumentsPtr	GetTypeArguments () const

virtual void	SetTypeArguments (const TypeArguments &value) const

bool	IsInstanceOf (const AbstractType &other, const TypeArguments &other_instantiator_type_arguments, const TypeArguments &other_function_type_arguments) const

bool	IsAssignableTo (const AbstractType &other, const TypeArguments &other_instantiator_type_arguments, const TypeArguments &other_function_type_arguments) const

bool	IsValidNativeIndex (int index) const

intptr_t *	NativeFieldsDataAddr () const

intptr_t	GetNativeField (int index) const

void	GetNativeFields (uint16_t num_fields, intptr_t *field_values) const

void	SetNativeFields (uint16_t num_fields, const intptr_t *field_values) const

uint16_t	NumNativeFields () const

void	SetNativeField (int index, intptr_t value) const

bool	IsCallable (Function *function) const

ObjectPtr	Invoke (const String &selector, const Array &arguments, const Array &argument_names, bool respect_reflectable=true, bool check_is_entrypoint=false) const

ObjectPtr	InvokeGetter (const String &selector, bool respect_reflectable=true, bool check_is_entrypoint=false) const

ObjectPtr	InvokeSetter (const String &selector, const Instance &argument, bool respect_reflectable=true, bool check_is_entrypoint=false) const

ObjectPtr	EvaluateCompiledExpression (const Class &klass, const ExternalTypedData &kernel_buffer, const Array &type_definitions, const Array &arguments, const TypeArguments &type_arguments) const

virtual ObjectPtr	HashCode () const

IntegerPtr	IdentityHashCode (Thread *thread) const

virtual bool	IsPointer () const

Public Member Functions inherited from dart::Object
virtual	~Object ()

ObjectPtr	ptr () const

void	operator= (ObjectPtr value)

bool	IsCanonical () const

void	SetCanonical () const

void	ClearCanonical () const

bool	IsImmutable () const

void	SetImmutable () const

void	ClearImmutable () const

intptr_t	GetClassId () const

ClassPtr	clazz () const

	CLASS_LIST_FOR_HANDLES (DEFINE_CLASS_TESTER)

bool	IsNull () const

virtual const char *	ToCString () const

void	PrintJSON (JSONStream *stream, bool ref=true) const

virtual void	PrintJSONImpl (JSONStream *stream, bool ref) const

void	PrintImplementationFields (JSONStream *stream) const

virtual void	PrintImplementationFieldsImpl (const JSONArray &jsarr_fields) const

virtual const char *	JSONType () const

virtual StringPtr	DictionaryName () const

bool	IsNew () const

bool	IsOld () const

bool	InVMIsolateHeap () const

void	Print () const

Static Public Member Functions
static intptr_t	NumFields (RecordPtr ptr)

static intptr_t	shape_offset ()

static intptr_t	field_offset (intptr_t index)

static intptr_t	field_index_at_offset (intptr_t offset_in_bytes)

static intptr_t	InstanceSize ()

static intptr_t	InstanceSize (intptr_t num_fields)

static RecordPtr	New (RecordShape shape, Heap::Space space=Heap::kNew)

static intptr_t	GetPositionalFieldIndexFromFieldName (const String &field_name)

Static Public Member Functions inherited from dart::Instance
static bool	NullIsAssignableTo (const AbstractType &other)

static bool	NullIsAssignableTo (const AbstractType &other, const TypeArguments &other_instantiator_type_arguments, const TypeArguments &other_function_type_arguments)

static ObjectPtr	EvaluateCompiledExpression (Thread *thread, const Object &receiver, const Library &library, const Class &klass, const ExternalTypedData &kernel_buffer, const Array &type_definitions, const Array &param_values, const TypeArguments &type_param_values)

static intptr_t	UnroundedSize ()

static intptr_t	InstanceSize ()

static InstancePtr	New (const Class &cls, Heap::Space space=Heap::kNew)

static InstancePtr	NewAlreadyFinalized (const Class &cls, Heap::Space space=Heap::kNew)

static intptr_t	DataOffsetFor (intptr_t cid)

static intptr_t	ElementSizeFor (intptr_t cid)

static intptr_t	NextFieldOffset ()

static intptr_t	NativeFieldsOffset ()

Static Public Member Functions inherited from dart::Object
static ObjectPtr	RawCast (ObjectPtr obj)

static constexpr bool	ContainsCompressedPointers ()

static intptr_t	tags_offset ()

static Object &	Handle ()

static Object &	Handle (Zone *zone)

static Object &	Handle (ObjectPtr ptr)

static Object &	Handle (Zone *zone, ObjectPtr ptr)

static Object &	ZoneHandle ()

static Object &	ZoneHandle (Zone *zone)

static Object &	ZoneHandle (ObjectPtr ptr)

static Object &	ZoneHandle (Zone *zone, ObjectPtr ptr)

static Object *	ReadOnlyHandle ()

static ObjectPtr	null ()

static void	set_vm_isolate_snapshot_object_table (const Array &table)

static ClassPtr	class_class ()

static ClassPtr	dynamic_class ()

static ClassPtr	void_class ()

static ClassPtr	type_parameters_class ()

static ClassPtr	type_arguments_class ()

static ClassPtr	patch_class_class ()

static ClassPtr	function_class ()

static ClassPtr	closure_data_class ()

static ClassPtr	ffi_trampoline_data_class ()

static ClassPtr	field_class ()

static ClassPtr	script_class ()

static ClassPtr	library_class ()

static ClassPtr	namespace_class ()

static ClassPtr	kernel_program_info_class ()

static ClassPtr	code_class ()

static ClassPtr	instructions_class ()

static ClassPtr	instructions_section_class ()

static ClassPtr	instructions_table_class ()

static ClassPtr	object_pool_class ()

static ClassPtr	pc_descriptors_class ()

static ClassPtr	code_source_map_class ()

static ClassPtr	compressed_stackmaps_class ()

static ClassPtr	var_descriptors_class ()

static ClassPtr	exception_handlers_class ()

static ClassPtr	context_class ()

static ClassPtr	context_scope_class ()

static ClassPtr	sentinel_class ()

static ClassPtr	api_error_class ()

static ClassPtr	language_error_class ()

static ClassPtr	unhandled_exception_class ()

static ClassPtr	unwind_error_class ()

static ClassPtr	singletargetcache_class ()

static ClassPtr	unlinkedcall_class ()

static ClassPtr	monomorphicsmiablecall_class ()

static ClassPtr	icdata_class ()

static ClassPtr	megamorphic_cache_class ()

static ClassPtr	subtypetestcache_class ()

static ClassPtr	loadingunit_class ()

static ClassPtr	weak_serialization_reference_class ()

static ClassPtr	weak_array_class ()

static void	InitNullAndBool (IsolateGroup *isolate_group)

static void	Init (IsolateGroup *isolate_group)

static void	InitVtables ()

static void	FinishInit (IsolateGroup *isolate_group)

static void	FinalizeVMIsolate (IsolateGroup *isolate_group)

static void	FinalizeReadOnlyObject (ObjectPtr object)

static void	Cleanup ()

static ErrorPtr	Init (IsolateGroup isolate_group, const uint8_t kernel_buffer, intptr_t kernel_buffer_size)

static void	MakeUnusedSpaceTraversable (const Object &obj, intptr_t original_size, intptr_t used_size)

static intptr_t	InstanceSize ()

template<class FakeObject >
static void	VerifyBuiltinVtable (intptr_t cid)

static void	VerifyBuiltinVtables ()

static bool	ShouldHaveImmutabilityBitSet (classid_t class_id)

Static Public Attributes
static constexpr intptr_t	kBytesPerElement = kCompressedWordSize

static constexpr intptr_t	kMaxElements = RecordShape::kMaxNumFields

Static Public Attributes inherited from dart::Object
static constexpr intptr_t	kHashBits = 30

static const ClassId	kClassId = kObjectCid

Friends
class	Class

class	Object

Additional Inherited Members
Public Types inherited from dart::Object
enum	NameVisibility { kInternalName = 0 , kScrubbedName , kUserVisibleName }

enum class	NameDisambiguation { kYes , kNo }

using	UntaggedObjectType = UntaggedObject

using	ObjectPtrType = ObjectPtr

Protected Member Functions inherited from dart::Instance
virtual void	PrintSharedInstanceJSON (JSONObject *jsobj, bool ref, bool include_id=true) const

Protected Member Functions inherited from dart::Object
	Object ()

uword	raw_value () const

void	setPtr (ObjectPtr value, intptr_t default_cid)

void	CheckHandle () const

cpp_vtable	vtable () const

void	set_vtable (cpp_vtable value)

bool	Contains (uword addr) const

template<typename type , std::memory_order order = std::memory_order_relaxed>
type	LoadPointer (type const *addr) const

template<typename type , std::memory_order order = std::memory_order_relaxed>
void	StorePointer (type const *addr, type value) const

template<typename type , typename compressed_type , std::memory_order order = std::memory_order_relaxed>
void	StoreCompressedPointer (compressed_type const *addr, type value) const

template<typename type >
void	StorePointerUnaligned (type const addr, type value, Thread thread) const

void	StoreSmi (SmiPtr const *addr, SmiPtr value) const

template<typename FieldType >
void	StoreSimd128 (const FieldType *addr, simd128_value_t value) const

template<typename FieldType >
FieldType	LoadNonPointer (const FieldType *addr) const

template<typename FieldType , std::memory_order order>
FieldType	LoadNonPointer (const FieldType *addr) const

template<typename FieldType , typename ValueType >
void	StoreNonPointer (const FieldType *addr, ValueType value) const

template<typename FieldType , typename ValueType , std::memory_order order>
void	StoreNonPointer (const FieldType *addr, ValueType value) const

template<typename FieldType >
FieldType *	UnsafeMutableNonPointer (const FieldType *addr) const

	CLASS_LIST (STORE_NON_POINTER_ILLEGAL_TYPE)

void	UnimplementedMethod () const

void	AddCommonObjectProperties (JSONObject jsobj, const char protocol_type, bool ref) const

Static Protected Member Functions inherited from dart::Object
static DART_NOINLINE Object &	HandleImpl (Zone *zone, ObjectPtr ptr, intptr_t default_cid)

static DART_NOINLINE Object &	ZoneHandleImpl (Zone *zone, ObjectPtr ptr, intptr_t default_cid)

static DART_NOINLINE Object *	ReadOnlyHandleImpl (intptr_t cid)

static ObjectPtr	Allocate (intptr_t cls_id, intptr_t size, Heap::Space space, bool compressed, uword ptr_field_start_offset, uword ptr_field_end_offset)

template<typename T >
static DART_FORCE_INLINE T::ObjectPtrType	Allocate (Heap::Space space)

template<typename T >
static DART_FORCE_INLINE T::ObjectPtrType	Allocate (Heap::Space space, intptr_t elements)

template<typename T >
static DART_FORCE_INLINE T::ObjectPtrType	AllocateVariant (intptr_t class_id, Heap::Space space)

template<typename T >
static DART_FORCE_INLINE T::ObjectPtrType	AllocateVariant (intptr_t class_id, Heap::Space space, intptr_t elements)

static constexpr intptr_t	RoundedAllocationSize (intptr_t size)

static ObjectPtr	Clone (const Object &orig, Heap::Space space, bool load_with_relaxed_atomics=false)

template<typename T >
static DART_FORCE_INLINE uword	from_offset ()

template<typename T >
static DART_FORCE_INLINE uword	to_offset (intptr_t length=0)

Protected Attributes inherited from dart::Object
ObjectPtr	ptr_

Detailed Description

Definition at line 11397 of file object.h.

Member Function Documentation

◆ CanonicalizeEquals()

bool dart::Record::CanonicalizeEquals ( const Instance & other ) const

virtual

Reimplemented from dart::Instance.

Definition at line 27860 of file object.cc.

                                                           {
  if (this->ptr() == other.ptr()) {
    return true;
  }
 
  if (!other.IsRecord() || other.IsNull()) {
    return false;
  }
 
  const Record& other_rec = Record::Cast(other);
  if (shape() != other_rec.shape()) {
    return false;
  }
 
  const intptr_t num_fields = this->num_fields();
  for (intptr_t i = 0; i < num_fields; ++i) {
    if (this->FieldAt(i) != other_rec.FieldAt(i)) {
      return false;
    }
  }
  return true;
}

◆ CanonicalizeFieldsLocked()

void dart::Record::CanonicalizeFieldsLocked ( Thread * thread ) const

virtual

Reimplemented from dart::Instance.

Definition at line 27901 of file object.cc.

                                                          {
  Zone* zone = thread->zone();
  Instance& obj = Instance::Handle(zone);
  const intptr_t num_fields = this->num_fields();
  for (intptr_t i = 0; i < num_fields; ++i) {
    obj ^= FieldAt(i);
    obj = obj.CanonicalizeLocked(thread);
    SetFieldAt(i, obj);
  }
}

◆ CanonicalizeHash()

uint32_t dart::Record::CanonicalizeHash ( ) const

virtual

Reimplemented from dart::Instance.

Definition at line 27883 of file object.cc.

                                        {
  Thread* thread = Thread::Current();
  uint32_t hash = thread->heap()->GetCanonicalHash(ptr());
  if (hash != 0) {
    return hash;
  }
  hash = shape().AsInt();
  Instance& element = Instance::Handle();
  const intptr_t num_fields = this->num_fields();
  for (intptr_t i = 0; i < num_fields; ++i) {
    element ^= FieldAt(i);
    hash = CombineHashes(hash, element.CanonicalizeHash());
  }
  hash = FinalizeHash(hash, kHashBits);
  thread->heap()->SetCanonicalHash(ptr(), hash);
  return hash;
}

◆ field_index_at_offset()

static intptr_t dart::Record::field_index_at_offset ( intptr_t offset_in_bytes )

inlinestatic

Definition at line 11426 of file object.h.

                                                                  {
    const intptr_t index =
        (offset_in_bytes - OFFSET_OF_RETURNED_VALUE(UntaggedRecord, data)) /
        kBytesPerElement;
    ASSERT(index >= 0);
    return index;
  }

◆ field_offset()

static intptr_t dart::Record::field_offset ( intptr_t index )

inlinestatic

Definition at line 11422 of file object.h.

                                               {
    return OFFSET_OF_RETURNED_VALUE(UntaggedRecord, data) +
           kBytesPerElement * index;
  }

◆ FieldAt()

ObjectPtr dart::Record::FieldAt ( intptr_t field_index ) const

inline

Definition at line 11407 of file object.h.

                                                {
    return untag()->field(field_index);
  }

◆ GetFieldIndexByName()

intptr_t dart::Record::GetFieldIndexByName	(	Thread *	thread,
		const String &	field_name
	)		const

Definition at line 27944 of file object.cc.

                                                                     {
  ASSERT(field_name.IsSymbol());
  const intptr_t field_index =
      Record::GetPositionalFieldIndexFromFieldName(field_name);
  const Array& field_names = Array::Handle(GetFieldNames(thread));
  const intptr_t num_positional_fields = num_fields() - field_names.Length();
  if ((field_index >= 0) && (field_index < num_positional_fields)) {
    return field_index;
  } else {
    for (intptr_t i = 0, n = field_names.Length(); i < n; ++i) {
      if (field_names.At(i) == field_name.ptr()) {
        return num_positional_fields + i;
      }
    }
  }
  return -1;
}

◆ GetFieldNames()

ArrayPtr dart::Record::GetFieldNames ( Thread * thread ) const

inline

Definition at line 11467 of file object.h.

                                               {
    return shape().GetFieldNames(thread);
  }

◆ GetPositionalFieldIndexFromFieldName()

intptr_t dart::Record::GetPositionalFieldIndexFromFieldName ( const String & field_name )

static

Definition at line 27929 of file object.cc.

                              {
  if (field_name.IsOneByteString() && field_name.Length() >= 1 &&
      field_name.CharAt(0) == '$') {
    int64_t value = 0;
    const char* cstr = field_name.ToCString();
    if (OS::StringToInt64(cstr + 1 /* skip '$' */, &value)) {
      if (value >= 1 && value < kMaxElements) {
        return static_cast<intptr_t>(value - 1);
      }
    }
  }
  return -1;
}

◆ GetRecordType()

RecordTypePtr dart::Record::GetRecordType ( ) const

Definition at line 27912 of file object.cc.

                                          {
  Zone* const zone = Thread::Current()->zone();
  const intptr_t num_fields = this->num_fields();
  const Array& field_types =
      Array::Handle(zone, Array::New(num_fields, Heap::kOld));
  Instance& obj = Instance::Handle(zone);
  AbstractType& type = AbstractType::Handle(zone);
  for (intptr_t i = 0; i < num_fields; ++i) {
    obj ^= FieldAt(i);
    type = obj.GetType(Heap::kNew);
    field_types.SetAt(i, type);
  }
  type = RecordType::New(shape(), field_types, Nullability::kNonNullable);
  type = ClassFinalizer::FinalizeType(type);
  return RecordType::Cast(type).ptr();
}

◆ InstanceSize() [1/2]

static intptr_t dart::Record::InstanceSize ( )

inlinestatic

Definition at line 11434 of file object.h.

                                 {
    ASSERT(sizeof(UntaggedRecord) ==
           OFFSET_OF_RETURNED_VALUE(UntaggedRecord, data));
    return 0;
  }

◆ InstanceSize() [2/2]

static intptr_t dart::Record::InstanceSize ( intptr_t num_fields )

inlinestatic

Definition at line 11440 of file object.h.

                                                    {
    return RoundedAllocationSize(sizeof(UntaggedRecord) +
                                 (num_fields * kBytesPerElement));
  }

◆ New()

RecordPtr dart::Record::New	(	RecordShape	shape,
		Heap::Space	space = `Heap::kNew`
	)

static

Definition at line 27823 of file object.cc.

                                                        {
  const intptr_t num_fields = shape.num_fields();
  ASSERT(num_fields >= 0);
  auto raw = Object::Allocate<Record>(space, num_fields);
  NoSafepointScope no_safepoint;
  raw->untag()->set_shape(shape.AsSmi());
  return raw;
}

◆ num_fields()

intptr_t dart::Record::num_fields ( ) const

inline

Definition at line 11399 of file object.h.

11399{ return NumFields(ptr()); }

dart::Record::NumFields

static intptr_t NumFields(RecordPtr ptr)

Definition object.h:11400

◆ NumFields()

static intptr_t dart::Record::NumFields ( RecordPtr ptr )

inlinestatic

Definition at line 11400 of file object.h.

                                           {
    return RecordShape(ptr->untag()->shape()).num_fields();
  }

◆ SetFieldAt()

void dart::Record::SetFieldAt	(	intptr_t	field_index,
		const Object &	value
	)		const

inline

Definition at line 11410 of file object.h.

                                                                   {
    untag()->set_field(field_index, value.ptr());
  }

◆ shape()

RecordShape dart::Record::shape ( ) const

inline

Definition at line 11404 of file object.h.

11404{ return RecordShape(untag()->shape()); }

◆ shape_offset()

static intptr_t dart::Record::shape_offset ( )

inlinestatic

Definition at line 11405 of file object.h.

11405{ return OFFSET_OF(UntaggedRecord, shape_); }

OFFSET_OF

#define OFFSET_OF(type, field)

Definition globals.h:138

Friends And Related Symbol Documentation

◆ Class

friend class Class

friend

Definition at line 11473 of file object.h.

◆ Object

friend class Object

friend

Definition at line 11474 of file object.h.

Member Data Documentation

◆ kBytesPerElement

constexpr intptr_t dart::Record::kBytesPerElement = kCompressedWordSize

staticconstexpr

Definition at line 11414 of file object.h.

◆ kMaxElements

constexpr intptr_t dart::Record::kMaxElements = RecordShape::kMaxNumFields

staticconstexpr

Definition at line 11415 of file object.h.

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

third_party/dart-lang/sdk/runtime/vm/object.h
third_party/dart-lang/sdk/runtime/vm/object.cc

Classes

Public Member Functions

Static Public Member Functions

Static Public Attributes

Friends

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ CanonicalizeEquals()

◆ CanonicalizeFieldsLocked()

◆ CanonicalizeHash()

◆ field_index_at_offset()

◆ field_offset()

◆ FieldAt()

◆ GetFieldIndexByName()

◆ GetFieldNames()

◆ GetPositionalFieldIndexFromFieldName()

◆ GetRecordType()

◆ InstanceSize() [1/2]

◆ InstanceSize() [2/2]

◆ New()

◆ num_fields()

◆ NumFields()

◆ SetFieldAt()

◆ shape()

◆ shape_offset()

Friends And Related Symbol Documentation

◆ Class

◆ Object

Member Data Documentation

◆ kBytesPerElement

◆ kMaxElements