The TRealData class manages the effective list of all data members for a given class.

For example for an object of class TLine that inherits from TObject and TAttLine, the TRealData object for a line contains the complete list of all data members of the 3 classes.

The list of TRealData members in TClass is built when functions like object.Inspect or object.DrawClass are called.

Definition at line 30 of file TRealData.h.

Public Types
enum	EStatusBits { kTransient = (1ULL << ( 14 )) }

Public Types inherited from TObject
enum	{ kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 , kBitMask = 0x00ffffff }

enum	{ kSingleKey = (1ULL << ( 0 )) , kOverwrite = (1ULL << ( 1 )) , kWriteDelete = (1ULL << ( 2 )) }

enum	EDeprecatedStatusBits { kObjInCanvas = (1ULL << ( 3 )) }

enum	EStatusBits { kCanDelete = (1ULL << ( 0 )) , kMustCleanup = (1ULL << ( 3 )) , kIsReferenced = (1ULL << ( 4 )) , kHasUUID = (1ULL << ( 5 )) , kCannotPick = (1ULL << ( 6 )) , kNoContextMenu = (1ULL << ( 8 )) , kInvalidObject = (1ULL << ( 13 )) }

Public Member Functions
	TRealData ()
	RealData default constructor.

	TRealData (const char name, Long_t offset, TDataMember datamember)
	Constructor to define one persistent data member.

virtual	~TRealData ()
	RealData default destructor.

void	AdoptStreamer (TMemberStreamer *p)

TDataMember *	GetDataMember () const

const char *	GetName () const override
	Returns name of object.

TMemberStreamer *	GetStreamer () const
	Return the associate streamer object.

Long_t	GetThisOffset () const

TClass *	IsA () const override

Bool_t	IsObject () const

void	SetIsObject (Bool_t isObject)

void	Streamer (TBuffer &) override
	Stream an object of class TObject.

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

void	WriteRealData (void pointer, char &buffer)
	Write one persistent data member on output buffer.

Public Member Functions inherited from TObject
	TObject ()
	TObject constructor.

	TObject (const TObject &object)
	TObject copy ctor.

virtual	~TObject ()
	TObject destructor.

void	AbstractMethod (const char *method) const
	Use this method to implement an "abstract" method that you don't want to leave purely abstract.

virtual void	AppendPad (Option_t *option="")
	Append graphics object to current pad.

virtual void	Browse (TBrowser *b)
	Browse object. May be overridden for another default action.

ULong_t	CheckedHash ()
	Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object.

virtual const char *	ClassName () const
	Returns name of class to which the object belongs.

virtual void	Clear (Option_t *="")

virtual TObject *	Clone (const char *newname="") const
	Make a clone of an object using the Streamer facility.

virtual Int_t	Compare (const TObject *obj) const
	Compare abstract method.

virtual void	Copy (TObject &object) const
	Copy this to obj.

virtual void	Delete (Option_t *option="")
	Delete this object.

virtual Int_t	DistancetoPrimitive (Int_t px, Int_t py)
	Computes distance from point (px,py) to the object.

virtual void	Draw (Option_t *option="")
	Default Draw method for all objects.

virtual void	DrawClass () const
	Draw class inheritance tree of the class to which this object belongs.

virtual TObject *	DrawClone (Option_t *option="") const
	Draw a clone of this object in the current selected pad with: `gROOT->SetSelectedPad(c1)`.

virtual void	Dump () const
	Dump contents of object on stdout.

virtual void	Error (const char method, const char msgfmt,...) const
	Issue error message.

virtual void	Execute (const char method, const char params, Int_t *error=nullptr)
	Execute method on this object with the given parameter string, e.g.

virtual void	Execute (TMethod method, TObjArray params, Int_t *error=nullptr)
	Execute method on this object with parameters stored in the TObjArray.

virtual void	ExecuteEvent (Int_t event, Int_t px, Int_t py)
	Execute action corresponding to an event at (px,py).

virtual void	Fatal (const char method, const char msgfmt,...) const
	Issue fatal error message.

virtual TObject *	FindObject (const char *name) const
	Must be redefined in derived classes.

virtual TObject *	FindObject (const TObject *obj) const
	Must be redefined in derived classes.

virtual Option_t *	GetDrawOption () const
	Get option used by the graphics system to draw this object.

virtual const char *	GetIconName () const
	Returns mime type name of object.

virtual char *	GetObjectInfo (Int_t px, Int_t py) const
	Returns string containing info about the object at position (px,py).

virtual Option_t *	GetOption () const

virtual const char *	GetTitle () const
	Returns title of object.

virtual UInt_t	GetUniqueID () const
	Return the unique object id.

virtual Bool_t	HandleTimer (TTimer *timer)
	Execute action in response of a timer timing out.

virtual ULong_t	Hash () const
	Return hash value for this object.

Bool_t	HasInconsistentHash () const
	Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e.

virtual void	Info (const char method, const char msgfmt,...) const
	Issue info message.

virtual Bool_t	InheritsFrom (const char *classname) const
	Returns kTRUE if object inherits from class "classname".

virtual Bool_t	InheritsFrom (const TClass *cl) const
	Returns kTRUE if object inherits from TClass cl.

virtual void	Inspect () const
	Dump contents of this object in a graphics canvas.

void	InvertBit (UInt_t f)

Bool_t	IsDestructed () const
	IsDestructed.

virtual Bool_t	IsEqual (const TObject *obj) const
	Default equal comparison (objects are equal if they have the same address in memory).

virtual Bool_t	IsFolder () const
	Returns kTRUE in case object contains browsable objects (like containers or lists of other objects).

R__ALWAYS_INLINE Bool_t	IsOnHeap () const

virtual Bool_t	IsSortable () const

R__ALWAYS_INLINE Bool_t	IsZombie () const

virtual void	ls (Option_t *option="") const
	The ls function lists the contents of a class on stdout.

void	MayNotUse (const char *method) const
	Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary).

virtual Bool_t	Notify ()
	This method must be overridden to handle object notification.

void	Obsolete (const char method, const char asOfVers, const char *removedFromVers) const
	Use this method to declare a method obsolete.

void	operator delete (void *ptr)
	Operator delete.

void	operator delete[] (void *ptr)
	Operator delete [].

void *	operator new (size_t sz)

void *	operator new (size_t sz, void *vp)

void *	operator new[] (size_t sz)

void *	operator new[] (size_t sz, void *vp)

TObject &	operator= (const TObject &rhs)
	TObject assignment operator.

virtual void	Paint (Option_t *option="")
	This method must be overridden if a class wants to paint itself.

virtual void	Pop ()
	Pop on object drawn in a pad to the top of the display list.

virtual void	Print (Option_t *option="") const
	This method must be overridden when a class wants to print itself.

virtual Int_t	Read (const char *name)
	Read contents of object with specified name from the current directory.

virtual void	RecursiveRemove (TObject *obj)
	Recursively remove this object from a list.

void	ResetBit (UInt_t f)

virtual void	SaveAs (const char filename="", Option_t option="") const
	Save this object in the file specified by filename.

virtual void	SavePrimitive (std::ostream &out, Option_t *option="")
	Save a primitive as a C++ statement(s) on output stream "out".

void	SetBit (UInt_t f)

void	SetBit (UInt_t f, Bool_t set)
	Set or unset the user status bits as specified in f.

virtual void	SetDrawOption (Option_t *option="")
	Set drawing option for object.

virtual void	SetUniqueID (UInt_t uid)
	Set the unique object id.

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

virtual void	SysError (const char method, const char msgfmt,...) const
	Issue system error message.

R__ALWAYS_INLINE Bool_t	TestBit (UInt_t f) const

Int_t	TestBits (UInt_t f) const

virtual void	UseCurrentStyle ()
	Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked.

virtual void	Warning (const char method, const char msgfmt,...) const
	Issue warning message.

virtual Int_t	Write (const char *name=nullptr, Int_t option=0, Int_t bufsize=0)
	Write this object to the current directory.

virtual Int_t	Write (const char *name=nullptr, Int_t option=0, Int_t bufsize=0) const
	Write this object to the current directory.

Static Public Member Functions
static TClass *	Class ()

static const char *	Class_Name ()

static constexpr Version_t	Class_Version ()

static const char *	DeclFileName ()

static void	GetName (TString &output, TDataMember *dm)
	Return the name of the data member as represented in the list of real data.

Static Public Member Functions inherited from TObject
static TClass *	Class ()

static const char *	Class_Name ()

static constexpr Version_t	Class_Version ()

static const char *	DeclFileName ()

static Longptr_t	GetDtorOnly ()
	Return destructor only flag.

static Bool_t	GetObjectStat ()
	Get status of object stat flag.

static void	SetDtorOnly (void *obj)
	Set destructor only flag.

static void	SetObjectStat (Bool_t stat)
	Turn on/off tracking of objects in the TObjectTable.

Private Member Functions
	TRealData (const TRealData &rhs)=delete

TRealData &	operator= (const TRealData &rhs)=delete

Private Attributes
TDataMember *	fDataMember

Bool_t	fIsObject

TString	fName

TMemberStreamer *	fStreamer

Long_t	fThisOffset

Additional Inherited Members
Protected Types inherited from TObject
enum	{ kOnlyPrepStep = (1ULL << ( 3 )) }

Protected Member Functions inherited from TObject
virtual void	DoError (int level, const char location, const char fmt, va_list va) const
	Interface to ErrorHandler (protected).

void	MakeZombie ()

#include <TRealData.h>

Inheritance diagram for TRealData:

[legend]

Member Enumeration Documentation

◆ EStatusBits

enum TRealData::EStatusBits

Enumerator
kTransient

Definition at line 43 of file TRealData.h.

Constructor & Destructor Documentation

◆ TRealData() [1/3]

TRealData::TRealData ( const TRealData & rhs )

privatedelete

◆ TRealData() [2/3]

TRealData::TRealData ( )

RealData default constructor.

Definition at line 33 of file TRealData.cxx.

◆ TRealData() [3/3]

TRealData::TRealData	(	const char *	name,
		Long_t	offset,
		TDataMember *	datamember
	)

Constructor to define one persistent data member.

datamember is the pointer to the data member descriptor.

Definition at line 43 of file TRealData.cxx.

◆ ~TRealData()

TRealData::~TRealData ( )

virtual

RealData default destructor.

Definition at line 52 of file TRealData.cxx.

Member Function Documentation

◆ AdoptStreamer()

void TRealData::AdoptStreamer ( TMemberStreamer * p )

Definition at line 67 of file TRealData.cxx.

◆ Class()

static TClass * TRealData::Class ( )

static

Returns: TClass describing this class

◆ Class_Name()

static const char * TRealData::Class_Name ( )

static

Returns: Name of this class

◆ Class_Version()

static constexpr Version_t TRealData::Class_Version ( )

inlinestaticconstexpr

Returns: Version of this class

Definition at line 62 of file TRealData.h.

◆ DeclFileName()

static const char * TRealData::DeclFileName ( )

inlinestatic

Returns: Name of the file containing the class declaration

Definition at line 62 of file TRealData.h.

◆ GetDataMember()

TDataMember * TRealData::GetDataMember ( ) const

inline

Definition at line 53 of file TRealData.h.

◆ GetName() [1/2]

const char * TRealData::GetName ( ) const

inlineoverridevirtual

Returns name of object.

This default method returns the class name. Classes that give objects a name should override this method.

Reimplemented from TObject.

Definition at line 52 of file TRealData.h.

◆ GetName() [2/2]

void TRealData::GetName	(	TString &	output,
		TDataMember *	dm
	)

static

Return the name of the data member as represented in the list of real data.

Definition at line 78 of file TRealData.cxx.

◆ GetStreamer()

TMemberStreamer * TRealData::GetStreamer ( ) const

Return the associate streamer object.

Definition at line 115 of file TRealData.cxx.

◆ GetThisOffset()

Long_t TRealData::GetThisOffset ( ) const

inline

Definition at line 55 of file TRealData.h.

◆ IsA()

TClass * TRealData::IsA ( ) const

inlineoverridevirtual

Returns: TClass describing current object

Reimplemented from TObject.

Definition at line 62 of file TRealData.h.

◆ IsObject()

Bool_t TRealData::IsObject ( ) const

inline

Definition at line 56 of file TRealData.h.

◆ operator=()

TRealData & TRealData::operator= ( const TRealData & rhs )

privatedelete

◆ SetIsObject()

void TRealData::SetIsObject ( Bool_t isObject )

inline

Definition at line 57 of file TRealData.h.

◆ Streamer()

void TRealData::Streamer ( TBuffer & R__b )

overridevirtual

Stream an object of class TObject.

Reimplemented from TObject.

◆ StreamerNVirtual()

void TRealData::StreamerNVirtual ( TBuffer & ClassDef_StreamerNVirtual_b )

inline

Definition at line 62 of file TRealData.h.

◆ WriteRealData()

void TRealData::WriteRealData	(	void *	pointer,
		char *&	buffer
	)

Write one persistent data member on output buffer.

pointer points to the current persistent data member

Definition at line 61 of file TRealData.cxx.

Member Data Documentation

◆ fDataMember

TDataMember* TRealData::fDataMember

private

Definition at line 33 of file TRealData.h.

◆ fIsObject

Bool_t TRealData::fIsObject

private

Definition at line 37 of file TRealData.h.

◆ fName

TString TRealData::fName

private

Definition at line 35 of file TRealData.h.

◆ fStreamer

TMemberStreamer* TRealData::fStreamer

private

Definition at line 36 of file TRealData.h.

◆ fThisOffset

Long_t TRealData::fThisOffset

private

Definition at line 34 of file TRealData.h.

core/meta/inc/TRealData.h

core/meta/src/TRealData.cxx

Public Types

Public Member Functions

Static Public Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Member Enumeration Documentation

◆ EStatusBits

Constructor & Destructor Documentation

◆ TRealData() [1/3]

◆ TRealData() [2/3]

◆ TRealData() [3/3]

◆ ~TRealData()

Member Function Documentation

◆ AdoptStreamer()

◆ Class()

◆ Class_Name()

◆ Class_Version()

◆ DeclFileName()

◆ GetDataMember()

◆ GetName() [1/2]

◆ GetName() [2/2]

◆ GetStreamer()

◆ GetThisOffset()

◆ IsA()

◆ IsObject()

◆ operator=()

◆ SetIsObject()

◆ Streamer()

◆ StreamerNVirtual()

◆ WriteRealData()

Member Data Documentation

◆ fDataMember

◆ fIsObject

◆ fName

◆ fStreamer

◆ fThisOffset