#include <object.h>

Inheritance diagram for dart::Instance:

Public Member Functions
virtual bool	OperatorEquals (const Instance &other) const

bool	IsIdenticalTo (const Instance &other) const

virtual bool	CanonicalizeEquals (const Instance &other) const

virtual uint32_t	CanonicalizeHash () const

intptr_t	SizeFromClass () const

InstancePtr	Canonicalize (Thread *thread) const

virtual InstancePtr	CanonicalizeLocked (Thread *thread) const

virtual void	CanonicalizeFieldsLocked (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 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)

Protected Member Functions
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

Friends
class	ByteBuffer

class	Class

class	Closure

class	Pointer

class	DeferredObject

class	FlowGraphSerializer

class	FlowGraphDeserializer

class	RegExp

class	StubCode

class	TypedDataView

class	InstanceSerializationCluster

class	InstanceDeserializationCluster

class	ClassDeserializationCluster

class	InstanceMorpher

class	Obfuscator

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

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

static const ClassId	kClassId = kObjectCid

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 8202 of file object.h.

Member Function Documentation

◆ Canonicalize()

InstancePtr dart::Instance::Canonicalize ( Thread * thread ) const

Definition at line 20444 of file object.cc.

                                                       {
  SafepointMutexLocker ml(
      thread->isolate_group()->constant_canonicalization_mutex());
  return CanonicalizeLocked(thread);
}

◆ CanonicalizeEquals()

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

virtual

Reimplemented in dart::AbstractType, dart::Integer, dart::Double, dart::String, dart::Array, dart::GrowableObjectArray, dart::Float32x4, dart::Int32x4, dart::Float64x2, dart::Record, dart::TypedData, dart::LinkedHashBase, dart::Closure, and dart::RegExp.

Definition at line 20259 of file object.cc.

                                                             {
  if (this->ptr() == other.ptr()) {
    return true;  // "===".
  }
 
  if (other.IsNull() || (this->clazz() != other.clazz())) {
    return false;
  }
 
  {
    NoSafepointScope no_safepoint;
    // Raw bits compare.
    const intptr_t instance_size = SizeFromClass();
    ASSERT(instance_size != 0);
    const intptr_t other_instance_size = other.SizeFromClass();
    ASSERT(other_instance_size != 0);
    if (instance_size != other_instance_size) {
      return false;
    }
    uword this_addr = reinterpret_cast<uword>(this->untag());
    uword other_addr = reinterpret_cast<uword>(other.untag());
    for (intptr_t offset = Instance::NextFieldOffset(); offset < instance_size;
         offset += kCompressedWordSize) {
      if ((reinterpret_cast<CompressedObjectPtr*>(this_addr + offset)
               ->Decompress(untag()->heap_base())) !=
          (reinterpret_cast<CompressedObjectPtr*>(other_addr + offset)
               ->Decompress(untag()->heap_base()))) {
        return false;
      }
    }
  }
  return true;
}

◆ CanonicalizeFieldsLocked()

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

virtual

Reimplemented in dart::Array, dart::Record, dart::LinkedHashBase, and dart::Closure.

Definition at line 20405 of file object.cc.

                                                            {
  const intptr_t class_id = GetClassId();
  if (class_id >= kNumPredefinedCids) {
    // Iterate over all fields, canonicalize numbers and strings, expect all
    // other instances to be canonical otherwise report error (return false).
    Zone* zone = thread->zone();
    Object& obj = Object::Handle(zone);
    const intptr_t instance_size = SizeFromClass();
    ASSERT(instance_size != 0);
    const auto unboxed_fields_bitmap =
        thread->isolate_group()->class_table()->GetUnboxedFieldsMapAt(class_id);
    for (intptr_t offset = Instance::NextFieldOffset(); offset < instance_size;
         offset += kCompressedWordSize) {
      if (unboxed_fields_bitmap.Get(offset / kCompressedWordSize)) {
        continue;
      }
      obj = this->FieldAddrAtOffset(offset)->Decompress(untag()->heap_base());
      if (obj.IsInstance()) {
        obj = Instance::Cast(obj).CanonicalizeLocked(thread);
        this->SetFieldAtOffset(offset, obj);
      } else {
        ASSERT(obj.IsNull() || obj.IsSentinel());
      }
    }
  } else {
#if defined(DEBUG) && !defined(DART_COMPRESSED_POINTERS)
    // Make sure that we are not missing any fields.
    IsolateGroup* group = IsolateGroup::Current();
    CheckForPointers has_pointers(group);
    this->ptr()->untag()->VisitPointersPrecise(&has_pointers);
    ASSERT(!has_pointers.has_pointers());
#endif  // DEBUG
  }
}

◆ CanonicalizeHash()

uint32_t dart::Instance::CanonicalizeHash ( ) const

virtual

Reimplemented in dart::TypeArguments, dart::AbstractType, dart::Integer, dart::Double, dart::String, dart::Bool, dart::Array, dart::Float32x4, dart::Int32x4, dart::Float64x2, dart::Record, dart::TypedData, dart::LinkedHashBase, dart::Closure, and dart::RegExp.

Definition at line 20316 of file object.cc.

                                          {
  if (GetClassId() == kNullCid) {
    return kNullIdentityHash;
  }
  Thread* thread = Thread::Current();
  uint32_t hash = thread->heap()->GetCanonicalHash(ptr());
  if (hash != 0) {
    return hash;
  }
  Zone* zone = thread->zone();
  const Class& cls = Class::Handle(zone, clazz());
  const bool is_symbol = Symbol::IsSymbolCid(thread, cls.id());
 
  NoSafepointScope no_safepoint(thread);
 
  if (is_symbol) {
    hash = Symbol::CanonicalizeHash(thread, *this);
  } else {
    const intptr_t class_id = cls.id();
    ASSERT(class_id != 0);
    hash = class_id;
    uword this_addr = reinterpret_cast<uword>(this->untag());
    Object& obj = Object::Handle(zone);
    Instance& instance = Instance::Handle(zone);
 
    const auto unboxed_fields_bitmap =
        thread->isolate_group()->class_table()->GetUnboxedFieldsMapAt(
            GetClassId());
 
    for (intptr_t offset = Instance::NextFieldOffset();
         offset < cls.host_next_field_offset(); offset += kCompressedWordSize) {
      if (unboxed_fields_bitmap.Get(offset / kCompressedWordSize)) {
        if (kCompressedWordSize == 8) {
          hash = CombineHashes(
              hash, *reinterpret_cast<uint32_t*>(this_addr + offset));
          hash = CombineHashes(
              hash, *reinterpret_cast<uint32_t*>(this_addr + offset + 4));
        } else {
          hash = CombineHashes(
              hash, *reinterpret_cast<uint32_t*>(this_addr + offset));
        }
      } else {
        obj = reinterpret_cast<CompressedObjectPtr*>(this_addr + offset)
                  ->Decompress(untag()->heap_base());
        if (obj.IsSentinel()) {
          hash = CombineHashes(hash, 11);
        } else {
          instance ^= obj.ptr();
          hash = CombineHashes(hash, instance.CanonicalizeHash());
        }
      }
    }
    hash = FinalizeHash(hash, String::kHashBits);
  }
  thread->heap()->SetCanonicalHash(ptr(), hash);
  return hash;
}

◆ CanonicalizeLocked()

InstancePtr dart::Instance::CanonicalizeLocked ( Thread * thread ) const

virtual

Reimplemented in dart::TypeArguments, dart::AbstractType, dart::String, and dart::GrowableObjectArray.

Definition at line 20450 of file object.cc.

                                                             {
  if (!this->ptr()->IsHeapObject() || this->IsCanonical()) {
    return this->ptr();
  }
  ASSERT(!IsNull());
  CanonicalizeFieldsLocked(thread);
  Zone* zone = thread->zone();
  const Class& cls = Class::Handle(zone, this->clazz());
  Instance& result =
      Instance::Handle(zone, cls.LookupCanonicalInstance(zone, *this));
  if (!result.IsNull()) {
    return result.ptr();
  }
  if (IsNew()) {
    ASSERT((thread->isolate() == Dart::vm_isolate()) || !InVMIsolateHeap());
    // Create a canonical object in old space.
    result ^= Object::Clone(*this, Heap::kOld);
  } else {
    result = this->ptr();
  }
  ASSERT(result.IsOld());
  result.SetCanonical();
  return cls.InsertCanonicalConstant(zone, result);
}

◆ CopyShallowToOldSpace()

InstancePtr dart::Instance::CopyShallowToOldSpace ( Thread * thread ) const

Definition at line 20440 of file object.cc.

                                                                {
  return Instance::RawCast(Object::Clone(*this, Heap::kOld));
}

◆ DataOffsetFor()

intptr_t dart::Instance::DataOffsetFor ( intptr_t cid )

static

Definition at line 20988 of file object.cc.

                                             {
  if (IsExternalTypedDataClassId(cid)) {
    // Elements start at offset 0 of the external data.
    return 0;
  }
  if (IsTypedDataClassId(cid)) {
    return TypedData::payload_offset();
  }
  switch (cid) {
    case kArrayCid:
    case kImmutableArrayCid:
      return Array::data_offset();
    case kTypeArgumentsCid:
      return TypeArguments::types_offset();
    case kOneByteStringCid:
      return OneByteString::data_offset();
    case kTwoByteStringCid:
      return TwoByteString::data_offset();
    case kRecordCid:
      return Record::field_offset(0);
    default:
      UNIMPLEMENTED();
      return Array::data_offset();
  }
}

◆ ElementSizeFor()

intptr_t dart::Instance::ElementSizeFor ( intptr_t cid )

static

Definition at line 20967 of file object.cc.

                                              {
  if (IsExternalTypedDataClassId(cid) || IsTypedDataClassId(cid) ||
      IsTypedDataViewClassId(cid) || IsUnmodifiableTypedDataViewClassId(cid)) {
    return TypedDataBase::ElementSizeInBytes(cid);
  }
  switch (cid) {
    case kArrayCid:
    case kImmutableArrayCid:
      return Array::kBytesPerElement;
    case kTypeArgumentsCid:
      return TypeArguments::ArrayTraits::kElementSize;
    case kOneByteStringCid:
      return OneByteString::kBytesPerElement;
    case kTwoByteStringCid:
      return TwoByteString::kBytesPerElement;
    default:
      UNIMPLEMENTED();
      return 0;
  }
}

◆ EvaluateCompiledExpression() [1/2]

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

Definition at line 4833 of file object.cc.

                                               {
  auto thread = Thread::Current();
  auto zone = thread->zone();
  const auto& library = Library::Handle(zone, klass.library());
  return Instance::EvaluateCompiledExpression(thread, *this, library, klass,
                                              kernel_buffer, type_definitions,
                                              arguments, type_arguments);
}

◆ EvaluateCompiledExpression() [2/2]

ObjectPtr dart::Instance::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

Definition at line 4847 of file object.cc.

                                         {
  auto zone = Thread::Current()->zone();
#if defined(DART_PRECOMPILED_RUNTIME)
  const auto& error_str = String::Handle(
      zone,
      String::New("Expression evaluation not available in precompiled mode."));
  return ApiError::New(error_str);
#else
  if (IsInternalOnlyClassId(klass.id()) || (klass.id() == kTypeArgumentsCid)) {
    const auto& exception = Instance::Handle(
        zone, String::New("Expressions can be evaluated only with regular Dart "
                          "instances/classes."));
    return UnhandledException::New(exception, StackTrace::null_instance());
  }
 
  const auto& url = String::Handle(zone, library.url());
  const auto& klass_name = klass.IsTopLevel()
                               ? String::null_string()
                               : String::Handle(zone, klass.UserVisibleName());
 
  const auto& result = Object::Handle(
      zone,
      LoadExpressionEvaluationFunction(zone, kernel_buffer, url, klass_name));
  if (result.IsError()) return result.ptr();
 
  const auto& eval_function = Function::Cast(result);
 
#if defined(DEBUG)
  for (intptr_t i = 0; i < arguments.Length(); ++i) {
    ASSERT(arguments.At(i) != Object::optimized_out().ptr());
  }
#endif  // defined(DEBUG)
 
  auto& all_arguments = Array::Handle(zone, arguments.ptr());
  if (!eval_function.is_static()) {
    // `this` may be optimized out (e.g. not accessible from breakpoint due to
    // not being captured by closure). We allow this as long as the evaluation
    // function doesn't actually need `this`.
    if (receiver.IsNull() || receiver.ptr() == Object::optimized_out().ptr()) {
      if (EvaluationFunctionNeedsReceiver(thread, zone, eval_function)) {
        return Object::optimized_out().ptr();
      }
    }
 
    all_arguments = Array::New(1 + arguments.Length());
    auto& param = PassiveObject::Handle();
    all_arguments.SetAt(0, receiver);
    for (intptr_t i = 0; i < arguments.Length(); i++) {
      param = arguments.At(i);
      all_arguments.SetAt(i + 1, param);
    }
  }
 
  return EvaluateCompiledExpressionHelper(zone, eval_function, type_definitions,
                                          all_arguments, type_arguments);
#endif  // !defined(DART_PRECOMPILED_RUNTIME)
}

◆ GetField()

ObjectPtr dart::Instance::GetField ( const Field & field ) const

Definition at line 20475 of file object.cc.

                                                     {
  if (field.is_unboxed()) {
    switch (field.guarded_cid()) {
      case kDoubleCid:
        return Double::New(*reinterpret_cast<double_t*>(FieldAddr(field)));
      case kFloat32x4Cid:
        return Float32x4::New(
            *reinterpret_cast<simd128_value_t*>(FieldAddr(field)));
      case kFloat64x2Cid:
        return Float64x2::New(
            *reinterpret_cast<simd128_value_t*>(FieldAddr(field)));
      default:
        return Integer::New(*reinterpret_cast<int64_t*>(FieldAddr(field)));
    }
  } else {
    return FieldAddr(field)->Decompress(untag()->heap_base());
  }
}

◆ GetNativeField()

intptr_t dart::Instance::GetNativeField ( int index ) const

inline

Definition at line 13307 of file object.h.

                                                 {
  ASSERT(IsValidNativeIndex(index));
  NoSafepointScope no_safepoint;
  TypedDataPtr native_fields = static_cast<TypedDataPtr>(
      NativeFieldsAddr()->Decompress(untag()->heap_base()));
  if (native_fields == TypedData::null()) {
    return 0;
  }
  return reinterpret_cast<intptr_t*>(native_fields->untag()->data())[index];
}

◆ GetNativeFields()

void dart::Instance::GetNativeFields	(	uint16_t	num_fields,
		intptr_t *	field_values
	)		const

inline

Definition at line 13318 of file object.h.

                                                             {
  NoSafepointScope no_safepoint;
  ASSERT(num_fields == NumNativeFields());
  ASSERT(field_values != nullptr);
  TypedDataPtr native_fields = static_cast<TypedDataPtr>(
      NativeFieldsAddr()->Decompress(untag()->heap_base()));
  if (native_fields == TypedData::null()) {
    for (intptr_t i = 0; i < num_fields; i++) {
      field_values[i] = 0;
    }
  }
  intptr_t* fields =
      reinterpret_cast<intptr_t*>(native_fields->untag()->data());
  for (intptr_t i = 0; i < num_fields; i++) {
    field_values[i] = fields[i];
  }
}

◆ GetType()

AbstractTypePtr dart::Instance::GetType ( Heap::Space space ) const

Definition at line 20520 of file object.cc.

                                                       {
  if (IsNull()) {
    return Type::NullType();
  }
  Thread* thread = Thread::Current();
  Zone* zone = thread->zone();
  const Class& cls = Class::Handle(zone, clazz());
  if (!cls.is_finalized()) {
    // Various predefined classes can be instantiated by the VM or
    // Dart_NewString/Integer/TypedData/... before the class is finalized.
    ASSERT(cls.is_prefinalized());
    cls.EnsureDeclarationLoaded();
  }
  if (cls.IsClosureClass()) {
    FunctionType& signature = FunctionType::Handle(
        zone, Closure::Cast(*this).GetInstantiatedSignature(zone));
    if (!signature.IsFinalized()) {
      signature.SetIsFinalized();
    }
    signature ^= signature.Canonicalize(thread);
    return signature.ptr();
  }
  if (IsRecord()) {
    ASSERT(cls.IsRecordClass());
    auto& record_type =
        RecordType::Handle(zone, Record::Cast(*this).GetRecordType());
    ASSERT(record_type.IsFinalized());
    ASSERT(record_type.IsCanonical());
    return record_type.ptr();
  }
  Type& type = Type::Handle(zone);
  if (!cls.IsGeneric()) {
    type = cls.DeclarationType();
  }
  if (type.IsNull()) {
    TypeArguments& type_arguments = TypeArguments::Handle(zone);
    const intptr_t num_type_arguments = cls.NumTypeArguments();
    if (num_type_arguments > 0) {
      type_arguments = GetTypeArguments();
      if (!type_arguments.IsNull()) {
        type_arguments = type_arguments.FromInstanceTypeArguments(thread, cls);
      }
    }
    type = Type::New(cls, type_arguments, Nullability::kNonNullable, space);
    type.SetIsFinalized();
    type ^= type.Canonicalize(thread);
  }
  return type.ptr();
}

◆ GetTypeArguments()

TypeArgumentsPtr dart::Instance::GetTypeArguments ( ) const

virtual

Reimplemented in dart::Array, dart::GrowableObjectArray, dart::LinkedHashBase, and dart::FutureOr.

Definition at line 20570 of file object.cc.

                                                  {
  ASSERT(!IsType());
  const Class& cls = Class::Handle(clazz());
  intptr_t field_offset = cls.host_type_arguments_field_offset();
  ASSERT(field_offset != Class::kNoTypeArguments);
  TypeArguments& type_arguments = TypeArguments::Handle();
  type_arguments ^=
      FieldAddrAtOffset(field_offset)->Decompress(untag()->heap_base());
  return type_arguments.ptr();
}

◆ HashCode()

ObjectPtr dart::Instance::HashCode ( ) const

virtual

Reimplemented in dart::Integer, and dart::String.

Definition at line 20212 of file object.cc.

                                   {
  // TODO(koda): Optimize for all builtin classes and all classes
  // that do not override hashCode.
  return DartLibraryCalls::HashCode(*this);
}

◆ IdentityHashCode()

IntegerPtr dart::Instance::IdentityHashCode ( Thread * thread ) const

Definition at line 20219 of file object.cc.

                                                          {
  if (IsInteger()) return Integer::Cast(*this).ptr();
 
#if defined(HASH_IN_OBJECT_HEADER)
  intptr_t hash = Object::GetCachedHash(ptr());
#else
  intptr_t hash = thread->heap()->GetHash(ptr());
#endif
  if (hash == 0) {
    if (IsNull()) {
      hash = kNullIdentityHash;
    } else if (IsBool()) {
      hash = Bool::Cast(*this).value() ? kTrueIdentityHash : kFalseIdentityHash;
    } else if (IsDouble()) {
      double val = Double::Cast(*this).value();
      if ((val >= kMinInt64RepresentableAsDouble) &&
          (val <= kMaxInt64RepresentableAsDouble)) {
        int64_t ival = static_cast<int64_t>(val);
        if (static_cast<double>(ival) == val) {
          return Integer::New(ival);
        }
      }
 
      uint64_t uval = bit_cast<uint64_t>(val);
      hash = ((uval >> 32) ^ (uval)) & kSmiMax;
    } else {
      do {
        hash = thread->random()->NextUInt32() & 0x3FFFFFFF;
      } while (hash == 0);
    }
 
#if defined(HASH_IN_OBJECT_HEADER)
    hash = Object::SetCachedHashIfNotSet(ptr(), hash);
#else
    hash = thread->heap()->SetHashIfNotSet(ptr(), hash);
#endif
  }
  return Smi::New(hash);
}

◆ InstanceSize()

static intptr_t dart::Instance::InstanceSize ( )

inlinestatic

Definition at line 8337 of file object.h.

                                 {
    return RoundedAllocationSize(sizeof(UntaggedInstance));
  }

◆ Invoke()

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

Definition at line 20143 of file object.cc.

                                                           {
  Thread* thread = Thread::Current();
  Zone* zone = thread->zone();
  Class& klass = Class::Handle(zone, clazz());
  CHECK_ERROR(klass.EnsureIsFinalized(thread));
 
  Function& function = Function::Handle(
      zone,
      Resolver::ResolveDynamicAnyArgs(zone, klass, function_name,
                                      /*allow_add=*/!FLAG_precompiled_mode));
 
  if (!function.IsNull() && check_is_entrypoint) {
    CHECK_ERROR(function.VerifyCallEntryPoint());
  }
 
  // We don't pass any explicit type arguments, which will be understood as
  // using dynamic for any function type arguments by lower layers.
  const int kTypeArgsLen = 0;
  const Array& args_descriptor = Array::Handle(
      zone, ArgumentsDescriptor::NewBoxed(kTypeArgsLen, args.Length(),
                                          arg_names, Heap::kNew));
 
  const auto& inst_type_args =
      klass.NumTypeArguments() > 0
          ? TypeArguments::Handle(zone, GetTypeArguments())
          : Object::null_type_arguments();
 
  if (function.IsNull()) {
    // Didn't find a method: try to find a getter and invoke call on its result.
    const String& getter_name =
        String::Handle(zone, Field::GetterName(function_name));
    function =
        Resolver::ResolveDynamicAnyArgs(zone, klass, getter_name,
                                        /*allow_add=*/!FLAG_precompiled_mode);
    if (!function.IsNull()) {
      if (check_is_entrypoint) {
        CHECK_ERROR(EntryPointFieldInvocationError(function_name));
      }
      ASSERT(function.kind() != UntaggedFunction::kMethodExtractor);
      // Invoke the getter.
      const int kNumArgs = 1;
      const Array& getter_args = Array::Handle(zone, Array::New(kNumArgs));
      getter_args.SetAt(0, *this);
      const Array& getter_args_descriptor = Array::Handle(
          zone, ArgumentsDescriptor::NewBoxed(
                    kTypeArgsLen, getter_args.Length(), Heap::kNew));
      const Object& getter_result = Object::Handle(
          zone, InvokeInstanceFunction(thread, *this, function, getter_name,
                                       getter_args, getter_args_descriptor,
                                       respect_reflectable, inst_type_args));
      if (getter_result.IsError()) {
        return getter_result.ptr();
      }
      // Replace the closure as the receiver in the arguments list.
      args.SetAt(0, getter_result);
      return DartEntry::InvokeClosure(thread, args, args_descriptor);
    }
  }
 
  // Found an ordinary method.
  return InvokeInstanceFunction(thread, *this, function, function_name, args,
                                args_descriptor, respect_reflectable,
                                inst_type_args);
}

◆ InvokeGetter()

ObjectPtr dart::Instance::InvokeGetter	(	const String &	selector,
		bool	respect_reflectable = `true`,
		bool	check_is_entrypoint = `false`
	)		const

Definition at line 20031 of file object.cc.

                                                                 {
  Thread* thread = Thread::Current();
  Zone* zone = thread->zone();
 
  Class& klass = Class::Handle(zone, clazz());
  CHECK_ERROR(klass.EnsureIsFinalized(thread));
  const auto& inst_type_args =
      klass.NumTypeArguments() > 0
          ? TypeArguments::Handle(zone, GetTypeArguments())
          : Object::null_type_arguments();
 
  const String& internal_getter_name =
      String::Handle(zone, Field::GetterName(getter_name));
  Function& function = Function::Handle(
      zone,
      Resolver::ResolveDynamicAnyArgs(zone, klass, internal_getter_name,
                                      /*allow_add=*/!FLAG_precompiled_mode));
 
  if (!function.IsNull() && check_is_entrypoint) {
    // The getter must correspond to either an entry-point field or a getter
    // method explicitly marked.
    Field& field = Field::Handle(zone);
    if (function.kind() == UntaggedFunction::kImplicitGetter) {
      field = function.accessor_field();
    }
    if (!field.IsNull()) {
      CHECK_ERROR(field.VerifyEntryPoint(EntryPointPragma::kGetterOnly));
    } else {
      CHECK_ERROR(function.VerifyCallEntryPoint());
    }
  }
 
  // Check for method extraction when method extractors are not lazily created.
  if (function.IsNull() && FLAG_precompiled_mode) {
    function = Resolver::ResolveDynamicAnyArgs(zone, klass, getter_name,
                                               /*allow_add=*/false);
 
    if (!function.IsNull() && check_is_entrypoint) {
      CHECK_ERROR(function.VerifyClosurizedEntryPoint());
    }
 
    if (!function.IsNull() && function.SafeToClosurize()) {
      const Function& closure_function =
          Function::Handle(zone, function.ImplicitClosureFunction());
      return closure_function.ImplicitInstanceClosure(*this);
    }
  }
 
  const int kTypeArgsLen = 0;
  const int kNumArgs = 1;
  const Array& args = Array::Handle(zone, Array::New(kNumArgs));
  args.SetAt(0, *this);
  const Array& args_descriptor = Array::Handle(
      zone,
      ArgumentsDescriptor::NewBoxed(kTypeArgsLen, args.Length(), Heap::kNew));
 
  return InvokeInstanceFunction(thread, *this, function, internal_getter_name,
                                args, args_descriptor, respect_reflectable,
                                inst_type_args);
}

◆ InvokeSetter()

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

Definition at line 20094 of file object.cc.

                                                                 {
  Thread* thread = Thread::Current();
  Zone* zone = thread->zone();
 
  const Class& klass = Class::Handle(zone, clazz());
  CHECK_ERROR(klass.EnsureIsFinalized(thread));
  const auto& inst_type_args =
      klass.NumTypeArguments() > 0
          ? TypeArguments::Handle(zone, GetTypeArguments())
          : Object::null_type_arguments();
 
  const String& internal_setter_name =
      String::Handle(zone, Field::SetterName(setter_name));
  const Function& setter = Function::Handle(
      zone,
      Resolver::ResolveDynamicAnyArgs(zone, klass, internal_setter_name,
                                      /*allow_add=*/!FLAG_precompiled_mode));
 
  if (check_is_entrypoint) {
    // The setter must correspond to either an entry-point field or a setter
    // method explicitly marked.
    Field& field = Field::Handle(zone);
    if (setter.kind() == UntaggedFunction::kImplicitSetter) {
      field = setter.accessor_field();
    }
    if (!field.IsNull()) {
      CHECK_ERROR(field.VerifyEntryPoint(EntryPointPragma::kSetterOnly));
    } else if (!setter.IsNull()) {
      CHECK_ERROR(setter.VerifyCallEntryPoint());
    }
  }
 
  const int kTypeArgsLen = 0;
  const int kNumArgs = 2;
  const Array& args = Array::Handle(zone, Array::New(kNumArgs));
  args.SetAt(0, *this);
  args.SetAt(1, value);
  const Array& args_descriptor = Array::Handle(
      zone,
      ArgumentsDescriptor::NewBoxed(kTypeArgsLen, args.Length(), Heap::kNew));
 
  return InvokeInstanceFunction(thread, *this, setter, internal_setter_name,
                                args, args_descriptor, respect_reflectable,
                                inst_type_args);
}

◆ IsAssignableTo()

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

Definition at line 20629 of file object.cc.

                                                              {
  ASSERT(!other.IsDynamicType());
  // In strong mode, compute NNBD_SUBTYPE(runtimeType, other).
  // In weak mode, compute LEGACY_SUBTYPE(runtimeType, other).
  return RuntimeTypeIsSubtypeOf(other, other_instantiator_type_arguments,
                                other_function_type_arguments);
}

◆ IsCallable()

bool dart::Instance::IsCallable ( Function * function ) const

Definition at line 20913 of file object.cc.

                                                  {
  Class& cls = Class::Handle(clazz());
  if (cls.IsClosureClass()) {
    if (function != nullptr) {
      *function = Closure::Cast(*this).function();
    }
    return true;
  }
  // Try to resolve a "call" method.
  Zone* zone = Thread::Current()->zone();
  Function& call_function = Function::Handle(
      zone, Resolver::ResolveDynamicAnyArgs(zone, cls, Symbols::DynamicCall(),
                                            /*allow_add=*/false));
  if (call_function.IsNull()) {
    return false;
  }
  if (function != nullptr) {
    *function = call_function.ptr();
  }
  return true;
}

◆ IsIdenticalTo()

bool dart::Instance::IsIdenticalTo ( const Instance & other ) const

Definition at line 20861 of file object.cc.

                                                        {
  if (ptr() == other.ptr()) return true;
  if (IsInteger() && other.IsInteger()) {
    return Integer::Cast(*this).Equals(other);
  }
  if (IsDouble() && other.IsDouble()) {
    double other_value = Double::Cast(other).value();
    return Double::Cast(*this).BitwiseEqualsToDouble(other_value);
  }
  return false;
}

◆ IsInstanceOf()

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

Definition at line 20614 of file object.cc.

                                                              {
  ASSERT(!other.IsDynamicType());
  if (IsNull()) {
    return Instance::NullIsInstanceOf(other, other_instantiator_type_arguments,
                                      other_function_type_arguments);
  }
  // In strong mode, compute NNBD_SUBTYPE(runtimeType, other).
  // In weak mode, compute LEGACY_SUBTYPE(runtimeType, other).
  return RuntimeTypeIsSubtypeOf(other, other_instantiator_type_arguments,
                                other_function_type_arguments);
}

◆ IsPointer()

bool dart::Instance::IsPointer ( ) const

virtual

Definition at line 25764 of file object.cc.

                               {
  return Pointer::IsPointer(*this);
}

◆ IsValidNativeIndex()

bool dart::Instance::IsValidNativeIndex ( int index ) const

inline

Definition at line 8270 of file object.h.

                                           {
    return ((index >= 0) && (index < clazz()->untag()->num_native_fields_));
  }

◆ NativeFieldsDataAddr()

intptr_t * dart::Instance::NativeFieldsDataAddr ( ) const

Definition at line 20873 of file object.cc.

                                               {
  ASSERT(Thread::Current()->no_safepoint_scope_depth() > 0);
  TypedDataPtr native_fields = static_cast<TypedDataPtr>(
      NativeFieldsAddr()->Decompress(untag()->heap_base()));
  if (native_fields == TypedData::null()) {
    return nullptr;
  }
  return reinterpret_cast<intptr_t*>(native_fields->untag()->data());
}

◆ NativeFieldsOffset()

static intptr_t dart::Instance::NativeFieldsOffset ( )

inlinestatic

Definition at line 8357 of file object.h.

8357{ return sizeof(UntaggedObject); }

◆ New()

InstancePtr dart::Instance::New	(	const Class &	cls,
		Heap::Space	space = `Heap::kNew`
	)

static

Definition at line 20935 of file object.cc.

                                                           {
  Thread* thread = Thread::Current();
  if (cls.EnsureIsAllocateFinalized(thread) != Error::null()) {
    return Instance::null();
  }
  return NewAlreadyFinalized(cls, space);
}

◆ NewAlreadyFinalized()

InstancePtr dart::Instance::NewAlreadyFinalized	(	const Class &	cls,
		Heap::Space	space = `Heap::kNew`
	)

static

Definition at line 20943 of file object.cc.

                                                                           {
  ASSERT(cls.is_allocate_finalized());
  intptr_t instance_size = cls.host_instance_size();
  ASSERT(instance_size > 0);
  // Initialize everything after the object header with Object::null(), since
  // this isn't a predefined class.
  const uword ptr_field_end_offset =
      instance_size - (Instance::ContainsCompressedPointers()
                           ? kCompressedWordSize
                           : kWordSize);
  return static_cast<InstancePtr>(Object::Allocate(
      cls.id(), instance_size, space, Instance::ContainsCompressedPointers(),
      from_offset<Instance>(), ptr_field_end_offset));
}

◆ NextFieldOffset()

static intptr_t dart::Instance::NextFieldOffset ( )

inlinestatic

Definition at line 8355 of file object.h.

8355{ return sizeof(UntaggedInstance); }

◆ NullIsAssignableTo() [1/2]

bool dart::Instance::NullIsAssignableTo ( const AbstractType & other )

static

Definition at line 20674 of file object.cc.

                                                           {
  // "Left Null" rule: null is assignable when destination type is
  // nullable. Otherwise it is not assignable or we cannot tell
  // without instantiating type parameter.
  if (other.IsNullable()) {
    return true;
  }
  if (other.IsFutureOrType()) {
    return NullIsAssignableTo(AbstractType::Handle(other.UnwrapFutureOr()));
  }
  // Since the TAVs are not available, for non-nullable type parameters
  // this returns a conservative approximation of "not assignable" .
  return false;
}

◆ NullIsAssignableTo() [2/2]

bool dart::Instance::NullIsAssignableTo	(	const AbstractType &	other,
		const TypeArguments &	other_instantiator_type_arguments,
		const TypeArguments &	other_function_type_arguments
	)

static

Definition at line 20691 of file object.cc.

                                                        {
  // Do checks that don't require instantiation first.
  if (NullIsAssignableTo(other)) return true;
  if (!other.IsTypeParameter()) return false;
  const auto& type = AbstractType::Handle(other.InstantiateFrom(
      other_instantiator_type_arguments, other_function_type_arguments,
      kAllFree, Heap::kNew));
  return NullIsAssignableTo(type);
}

◆ NumNativeFields()

uint16_t dart::Instance::NumNativeFields ( ) const

inline

Definition at line 8280 of file object.h.

                                   {
    return clazz()->untag()->num_native_fields_;
  }

◆ OperatorEquals()

bool dart::Instance::OperatorEquals ( const Instance & other ) const

virtual

Reimplemented in dart::Integer, dart::Double, and dart::String.

Definition at line 20855 of file object.cc.

                                                         {
  // TODO(koda): Optimize for all builtin classes and all classes
  // that do not override operator==.
  return DartLibraryCalls::Equals(*this, other) == Object::bool_true().ptr();
}

◆ PrintSharedInstanceJSON()

void dart::Instance::PrintSharedInstanceJSON	(	JSONObject *	jsobj,
		bool	ref,
		bool	include_id = `true`
	)		const

protectedvirtual

Definition at line 1260 of file object_service.cc.

                                                              {
  AddCommonObjectProperties(jsobj, "Instance", ref);
  {
    NoSafepointScope safepoint_scope;
    uint32_t hash_code = HeapSnapshotWriter::GetHeapSnapshotIdentityHash(
        Thread::Current(), ptr());
    jsobj->AddProperty64("identityHashCode", hash_code);
  }
  if (include_id) {
    jsobj->AddServiceId(*this);
  }
  if (ref) {
    return;
  }
 
  // Add all fields in layout order, from superclass to subclass.
  GrowableArray<Class*> classes;
  Class& cls = Class::Handle(this->clazz());
  if (IsClosure()) {
    // Closure fields are not instances. Skip them.
    cls = cls.SuperClass();
  }
  do {
    classes.Add(&Class::Handle(cls.ptr()));
    cls = cls.SuperClass();
  } while (!cls.IsNull());
 
  Array& field_array = Array::Handle();
  Field& field = Field::Handle();
  Object& field_value = Object::Handle();
  {
    JSONArray jsarr(jsobj, "fields");
    for (intptr_t i = classes.length() - 1; i >= 0; i--) {
      field_array = classes[i]->fields();
      if (!field_array.IsNull()) {
        for (intptr_t j = 0; j < field_array.Length(); j++) {
          field ^= field_array.At(j);
          if (!field.is_static()) {
            field_value = GetField(field);
            JSONObject jsfield(&jsarr);
            jsfield.AddProperty("decl", field);
            jsfield.AddProperty("name", field.UserVisibleNameCString());
            jsfield.AddProperty("value", field_value);
          }
        }
      }
    }
  }
 
  if (NumNativeFields() > 0) {
    JSONArray jsarr(jsobj, "_nativeFields");
    for (intptr_t i = 0; i < NumNativeFields(); i++) {
      intptr_t value = GetNativeField(i);
      JSONObject jsfield(&jsarr);
      jsfield.AddProperty("index", i);
      jsfield.AddProperty("value", value);
    }
  }
}

◆ SetField()

void dart::Instance::SetField	(	const Field &	field,
		const Object &	value
	)		const

Definition at line 20494 of file object.cc.

                                                                     {
  if (field.is_unboxed()) {
    switch (field.guarded_cid()) {
      case kDoubleCid:
        StoreNonPointer(reinterpret_cast<double_t*>(FieldAddr(field)),
                        Double::Cast(value).value());
        break;
      case kFloat32x4Cid:
        StoreNonPointer(reinterpret_cast<simd128_value_t*>(FieldAddr(field)),
                        Float32x4::Cast(value).value());
        break;
      case kFloat64x2Cid:
        StoreNonPointer(reinterpret_cast<simd128_value_t*>(FieldAddr(field)),
                        Float64x2::Cast(value).value());
        break;
      default:
        StoreNonPointer(reinterpret_cast<int64_t*>(FieldAddr(field)),
                        Integer::Cast(value).AsInt64Value());
        break;
    }
  } else {
    field.RecordStore(value);
    StoreCompressedPointer(FieldAddr(field), value.ptr());
  }
}

◆ SetNativeField()

void dart::Instance::SetNativeField	(	int	index,
		intptr_t	value
	)		const

Definition at line 20883 of file object.cc.

                                                             {
  ASSERT(IsValidNativeIndex(index));
  Object& native_fields =
      Object::Handle(NativeFieldsAddr()->Decompress(untag()->heap_base()));
  if (native_fields.IsNull()) {
    // Allocate backing storage for the native fields.
    native_fields = TypedData::New(kIntPtrCid, NumNativeFields());
    StoreCompressedPointer(NativeFieldsAddr(), native_fields.ptr());
  }
  intptr_t byte_offset = index * sizeof(intptr_t);
  TypedData::Cast(native_fields).SetIntPtr(byte_offset, value);
}

◆ SetNativeFields()

void dart::Instance::SetNativeFields	(	uint16_t	num_fields,
		const intptr_t *	field_values
	)		const

Definition at line 20896 of file object.cc.

                                                                   {
  ASSERT(num_native_fields == NumNativeFields());
  ASSERT(field_values != nullptr);
  Object& native_fields =
      Object::Handle(NativeFieldsAddr()->Decompress(untag()->heap_base()));
  if (native_fields.IsNull()) {
    // Allocate backing storage for the native fields.
    native_fields = TypedData::New(kIntPtrCid, NumNativeFields());
    StoreCompressedPointer(NativeFieldsAddr(), native_fields.ptr());
  }
  for (uint16_t i = 0; i < num_native_fields; i++) {
    intptr_t byte_offset = i * sizeof(intptr_t);
    TypedData::Cast(native_fields).SetIntPtr(byte_offset, field_values[i]);
  }
}

◆ SetTypeArguments()

void dart::Instance::SetTypeArguments ( const TypeArguments & value ) const

virtual

Reimplemented in dart::Array, dart::GrowableObjectArray, and dart::LinkedHashBase.

Definition at line 20581 of file object.cc.

                                                                {
  ASSERT(!IsType());
  ASSERT(value.IsNull() || value.IsCanonical());
  const Class& cls = Class::Handle(clazz());
  intptr_t field_offset = cls.host_type_arguments_field_offset();
  ASSERT(field_offset != Class::kNoTypeArguments);
  SetFieldAtOffset(field_offset, value);
}

◆ SizeFromClass()

intptr_t dart::Instance::SizeFromClass ( ) const

inline

Definition at line 8216 of file object.h.

                                 {
#if defined(DEBUG)
    const Class& cls = Class::Handle(clazz());
    ASSERT(cls.is_finalized() || cls.is_prefinalized());
#endif
    return (clazz()->untag()->host_instance_size_in_words_ *
            kCompressedWordSize);
  }

◆ UnroundedSize()

static intptr_t dart::Instance::UnroundedSize ( )

inlinestatic

Definition at line 8336 of file object.h.

8336{ return sizeof(UntaggedInstance); }

Friends And Related Function Documentation

◆ ByteBuffer

friend class ByteBuffer

friend

Definition at line 8432 of file object.h.

◆ Class

friend class Class

friend

Definition at line 8433 of file object.h.

◆ ClassDeserializationCluster

friend class ClassDeserializationCluster

friend

Definition at line 8444 of file object.h.

◆ Closure

friend class Closure

friend

Definition at line 8434 of file object.h.

◆ DeferredObject

friend class DeferredObject

friend

Definition at line 8436 of file object.h.

◆ FlowGraphDeserializer

friend class FlowGraphDeserializer

friend

Definition at line 8438 of file object.h.

◆ FlowGraphSerializer

friend class FlowGraphSerializer

friend

Definition at line 8437 of file object.h.

◆ InstanceDeserializationCluster

friend class InstanceDeserializationCluster

friend

Definition at line 8443 of file object.h.

◆ InstanceMorpher

friend class InstanceMorpher

friend

Definition at line 8445 of file object.h.

◆ InstanceSerializationCluster

friend class InstanceSerializationCluster

friend

Definition at line 8442 of file object.h.

◆ Obfuscator

friend class Obfuscator

friend

Definition at line 8446 of file object.h.

◆ Pointer

friend class Pointer

friend

Definition at line 8435 of file object.h.

◆ RegExp

friend class RegExp

friend

Definition at line 8439 of file object.h.

◆ StubCode

friend class StubCode

friend

Definition at line 8440 of file object.h.

◆ TypedDataView

friend class TypedDataView

friend

Definition at line 8441 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
third_party/dart-lang/sdk/runtime/vm/object_service.cc

Public Member Functions

Static Public Member Functions

Protected Member Functions

Friends

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ Canonicalize()

◆ CanonicalizeEquals()

◆ CanonicalizeFieldsLocked()

◆ CanonicalizeHash()

◆ CanonicalizeLocked()

◆ CopyShallowToOldSpace()

◆ DataOffsetFor()

◆ ElementSizeFor()

◆ EvaluateCompiledExpression() [1/2]

◆ EvaluateCompiledExpression() [2/2]

◆ GetField()

◆ GetNativeField()

◆ GetNativeFields()

◆ GetType()

◆ GetTypeArguments()

◆ HashCode()

◆ IdentityHashCode()

◆ InstanceSize()

◆ Invoke()

◆ InvokeGetter()

◆ InvokeSetter()

◆ IsAssignableTo()

◆ IsCallable()

◆ IsIdenticalTo()

◆ IsInstanceOf()

◆ IsPointer()

◆ IsValidNativeIndex()

◆ NativeFieldsDataAddr()

◆ NativeFieldsOffset()

◆ New()

◆ NewAlreadyFinalized()

◆ NextFieldOffset()

◆ NullIsAssignableTo() [1/2]

◆ NullIsAssignableTo() [2/2]

◆ NumNativeFields()

◆ OperatorEquals()

◆ PrintSharedInstanceJSON()

◆ SetField()

◆ SetNativeField()

◆ SetNativeFields()

◆ SetTypeArguments()

◆ SizeFromClass()

◆ UnroundedSize()

Friends And Related Function Documentation

◆ ByteBuffer

◆ Class

◆ ClassDeserializationCluster

◆ Closure

◆ DeferredObject

◆ FlowGraphDeserializer

◆ FlowGraphSerializer

◆ InstanceDeserializationCluster

◆ InstanceMorpher

◆ InstanceSerializationCluster

◆ Obfuscator

◆ Pointer

◆ RegExp

◆ StubCode

◆ TypedDataView