#include <object.h>

Inheritance diagram for dart::UserTag:

Public Member Functions
uword	tag () const

void	set_tag (uword t) const

bool	streamable () const

void	set_streamable (bool streamable)

StringPtr	label () const

UserTagPtr	MakeActive () const

Public Member Functions inherited from dart::Instance
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 intptr_t	tag_offset ()

static intptr_t	InstanceSize ()

static UserTagPtr	New (const String &label, Heap::Space space=Heap::kOld)

static UserTagPtr	DefaultTag ()

static bool	TagTableIsFull (Thread *thread)

static UserTagPtr	FindTagById (const Isolate *isolate, uword tag_id)

static UserTagPtr	FindTagInIsolate (Isolate isolate, Thread thread, const String &label)

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)

Friends
class	Class

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

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 13126 of file object.h.

Member Function Documentation

◆ DefaultTag()

UserTagPtr dart::UserTag::DefaultTag ( )

static

Definition at line 27053 of file object.cc.

                               {
  Thread* thread = Thread::Current();
  Zone* zone = thread->zone();
  Isolate* isolate = thread->isolate();
  ASSERT(isolate != nullptr);
  if (isolate->default_tag() != UserTag::null()) {
    // Already created.
    return isolate->default_tag();
  }
  // Create default tag.
  const UserTag& result =
      UserTag::Handle(zone, UserTag::New(Symbols::Default()));
  ASSERT(result.tag() == UserTags::kDefaultUserTag);
  isolate->set_default_tag(result);
  return result.ptr();
}

◆ FindTagById()

UserTagPtr dart::UserTag::FindTagById	(	const Isolate *	isolate,
		uword	tag_id
	)

static

Definition at line 27132 of file object.cc.

                                                                    {
  ASSERT(isolate != nullptr);
  Thread* thread = Thread::Current();
  Zone* zone = thread->zone();
  ASSERT(isolate->tag_table() != GrowableObjectArray::null());
  const GrowableObjectArray& tag_table =
      GrowableObjectArray::Handle(zone, isolate->tag_table());
  UserTag& tag = UserTag::Handle(zone);
  for (intptr_t i = 0; i < tag_table.Length(); i++) {
    tag ^= tag_table.At(i);
    if (tag.tag() == tag_id) {
      return tag.ptr();
    }
  }
  return UserTag::null();
}

◆ FindTagInIsolate()

UserTagPtr dart::UserTag::FindTagInIsolate	(	Isolate *	isolate,
		Thread *	thread,
		const String &	label
	)

static

Definition at line 27070 of file object.cc.

                                                          {
  Zone* zone = thread->zone();
  if (isolate->tag_table() == GrowableObjectArray::null()) {
    return UserTag::null();
  }
  const GrowableObjectArray& tag_table =
      GrowableObjectArray::Handle(zone, isolate->tag_table());
  UserTag& other = UserTag::Handle(zone);
  String& tag_label = String::Handle(zone);
  for (intptr_t i = 0; i < tag_table.Length(); i++) {
    other ^= tag_table.At(i);
    ASSERT(!other.IsNull());
    tag_label = other.label();
    ASSERT(!tag_label.IsNull());
    if (tag_label.Equals(label)) {
      return other.ptr();
    }
  }
  return UserTag::null();
}

◆ InstanceSize()

static intptr_t dart::UserTag::InstanceSize ( )

inlinestatic

Definition at line 13146 of file object.h.

                                 {
    return RoundedAllocationSize(sizeof(UntaggedUserTag));
  }

◆ label()

StringPtr dart::UserTag::label ( ) const

inline

Definition at line 13142 of file object.h.

13142{ return untag()->label(); }

dart::untag

raw_obj untag() -> num_entries()) VARIABLE_COMPRESSED_VISITOR(Array, Smi::Value(raw_obj->untag() ->length())) VARIABLE_COMPRESSED_VISITOR(TypedData, TypedData::ElementSizeInBytes(raw_obj->GetClassId()) *Smi::Value(raw_obj->untag() ->length())) VARIABLE_COMPRESSED_VISITOR(Record, RecordShape(raw_obj->untag() ->shape()).num_fields()) VARIABLE_NULL_VISITOR(CompressedStackMaps, CompressedStackMaps::PayloadSizeOf(raw_obj)) VARIABLE_NULL_VISITOR(OneByteString, Smi::Value(raw_obj->untag() ->length())) VARIABLE_NULL_VISITOR(TwoByteString, Smi::Value(raw_obj->untag() ->length())) intptr_t UntaggedField::VisitFieldPointers(FieldPtr raw_obj, ObjectPointerVisitor *visitor)

Definition raw_object.cc:562

◆ MakeActive()

UserTagPtr dart::UserTag::MakeActive ( ) const

Definition at line 27007 of file object.cc.

                                     {
  Isolate* isolate = Isolate::Current();
  ASSERT(isolate != nullptr);
  UserTag& old = UserTag::Handle(isolate->current_tag());
  isolate->set_current_tag(*this);
 
#if !defined(PRODUCT)
  // Notify VM service clients that the current UserTag has changed.
  if (Service::profiler_stream.enabled()) {
    ServiceEvent event(isolate, ServiceEvent::kUserTagChanged);
    String& name = String::Handle(old.label());
    event.set_previous_tag(name.ToCString());
    name ^= label();
    event.set_updated_tag(name.ToCString());
    Service::HandleEvent(&event);
  }
#endif  // !defined(PRODUCT)
 
  return old.ptr();
}

◆ New()

UserTagPtr dart::UserTag::New	(	const String &	label,
		Heap::Space	space = `Heap::kOld`
	)

static

Definition at line 27028 of file object.cc.

                                                            {
  Thread* thread = Thread::Current();
  Isolate* isolate = thread->isolate();
  ASSERT(isolate->tag_table() != GrowableObjectArray::null());
  // Canonicalize by name.
  UserTag& result = UserTag::Handle(FindTagInIsolate(thread, label));
  if (!result.IsNull()) {
    // Tag already exists, return existing instance.
    return result.ptr();
  }
  if (TagTableIsFull(thread)) {
    const String& error = String::Handle(String::NewFormatted(
        "UserTag instance limit (%" Pd ") reached.", UserTags::kMaxUserTags));
    const Array& args = Array::Handle(Array::New(1));
    args.SetAt(0, error);
    Exceptions::ThrowByType(Exceptions::kUnsupported, args);
  }
  // No tag with label exists, create and register with isolate tag table.
  result = Object::Allocate<UserTag>(space);
  result.set_label(label);
  result.set_streamable(UserTags::IsTagNameStreamable(label.ToCString()));
  AddTagToIsolate(thread, result);
  return result.ptr();
}

◆ set_streamable()

void dart::UserTag::set_streamable ( bool streamable )

inline

Definition at line 13136 of file object.h.

                                       {
    StoreNonPointer(&untag()->streamable_, streamable);
  }

◆ set_tag()

void dart::UserTag::set_tag ( uword t ) const

inline

Definition at line 13129 of file object.h.

                              {
    ASSERT(t >= UserTags::kUserTagIdOffset);
    ASSERT(t < UserTags::kUserTagIdOffset + UserTags::kMaxUserTags);
    StoreNonPointer(&untag()->tag_, t);
  }

◆ streamable()

bool dart::UserTag::streamable ( ) const

inline

Definition at line 13135 of file object.h.

13135{ return untag()->streamable(); }

◆ tag()

uword dart::UserTag::tag ( ) const

inline

Definition at line 13128 of file object.h.

13128{ return untag()->tag(); }

◆ tag_offset()

static intptr_t dart::UserTag::tag_offset ( )

inlinestatic

Definition at line 13140 of file object.h.

13140{ return OFFSET_OF(UntaggedUserTag, tag_); }

OFFSET_OF

#define OFFSET_OF(type, field)

Definition globals.h:138

◆ TagTableIsFull()

bool dart::UserTag::TagTableIsFull ( Thread * thread )

static

Definition at line 27123 of file object.cc.

                                           {
  Isolate* isolate = thread->isolate();
  ASSERT(isolate->tag_table() != GrowableObjectArray::null());
  const GrowableObjectArray& tag_table =
      GrowableObjectArray::Handle(thread->zone(), isolate->tag_table());
  ASSERT(tag_table.Length() <= UserTags::kMaxUserTags);
  return tag_table.Length() == UserTags::kMaxUserTags;
}

Friends And Related Symbol Documentation

◆ Class

friend class Class

friend

Definition at line 13168 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

Public Member Functions

Static Public Member Functions

Friends

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ DefaultTag()

◆ FindTagById()

◆ FindTagInIsolate()

◆ InstanceSize()

◆ label()

◆ MakeActive()

◆ New()

◆ set_streamable()

◆ set_tag()

◆ streamable()

◆ tag()

◆ tag_offset()

◆ TagTableIsFull()

Friends And Related Symbol Documentation

◆ Class