All ROOT classes may have RTTI (run time type identification) support added.

The data is stored in so called DICTIONARY (look at TDictionary). Information about a class is stored in TClass. This information may be obtained via the cling api - see class TCling. TClass has a list of TDataMember objects providing information about all data members of described class.

TDataMember provides information about name of data member, its type, and comment field string. It also tries to find the TMethodCall objects responsible for getting/setting a value of it, and gives you pointers to these methods. This gives you a unique possibility to access protected and private (!) data members if only methods for doing that are defined.

These methods could either be specified in a comment field, or found out automatically by ROOT: here's an example: suppose you have a class definition:

class MyClass{
    private:
        Float_t fX1;
            ...
    public:
        void    SetX1(Float_t x) {fX1 = x;};
        Float_t GetX1()          {return fX1;};
            ...
}

Look at the data member name and method names: a data member name has a prefix letter (f) and has a base name X1 . The methods for getting and setting this value have names which consist of string Get/Set and the same base name. This convention of naming data fields and methods which access them allows TDataMember find this methods by itself completely automatically. To make this description complete, one should know, that names that are automatically recognized may be also: for data fields: either fXXX or fIsXXX; and for getter function GetXXX() or IsXXX() [where XXX is base name].

As an example of using it let's analyse a few lines which get and set a fEditable field in TCanvas:

TCanvas     *c  = new TCanvas("c");   // create a canvas
TClass      *cl = c->IsA();            // get its class description object.
TDataMember *dm = cl->GetDataMember("fEditable"); //This is our data member
TMethodCall *getter = dm->GetterMethod(c); //find a method that gets value!
Long_t l;   // declare a storage for this value;
getter->Execute(c,"",l);  // Get this Value !!!! It will appear in l !!!
TMethodCall *setter = dm->SetterMethod(c);
setter->Execute(c,"0",);   // Set Value 0 !!!

This trick is widely used in ROOT TContextMenu and dialogs for obtaining current values and put them as initial values in dialog fields.

If you don't want to follow the convention of naming used by ROOT you still could benefit from Getter/Setter method support: the solution is to instruct ROOT what the names of these routines are. The way to do it is putting this information in a comment string to a data field in your class declaration:

class MyClass{
    Int_t mydata;  //  *OPTIONS={GetMethod="Get";SetMethod="Set"}
     ...
    Int_t Get() const { return mydata;};
    void  Set(Int_t i) {mydata=i;};
    }

However, this getting/setting functions are not the only feature of this class. The next point is providing lists of possible settings for the concerned data member. The idea is to have a list of possible options for this data member, with strings identifying them. This is used in dialogs with parameters to set - for details see TMethodArg, TRootContextMenu, TContextMenu. This list not only specifies the allowed value, but also provides strings naming the options. Options are managed via TList of TOptionListItem objects. This list is also created automatically: if a data type is an enum type, the list will have items describing every enum value, and named according to enum name. If type is Bool_t, two options "On" and "Off" with values 0 and 1 are created. For other types you need to instruct ROOT about possible options. The way to do it is the same as in case of specifying getter/setter method: a comment string to a data field in Your header file with class definition. The most general format of this string is:

OPTIONS={GetMethod="getter";SetMethod="setter";Items=(it1="title1",it2="title2", ... ) }

While parsing this string ROOT firstly looks for command-tokens: GetMethod, SetMethod, Items; They must be preceded by string OPTIONS= , enclosed by {} and separated by semicolons ";". All command token should have a form TOKEN=VALUE. All tokens are optional. The names of getter and setter method must be enclosed by double-quote marks (") . Specifications of Items is slightly more complicated: you need to put token ITEMS= and then enclose all options in curly brackets "()". You separate options by comas ",". Each option item may have one of the following forms:

 IntegerValue  = "Text Label"
 EnumValue     = "Text Label"
"TextValue" = Text Label"

One can specify values as Integers or Enums - when data field is an Integer, Float or Enum type; as texts - for char (more precisely: Option_t).

As mentioned above - this information are mainly used by contextmenu, but also in Dump() and Inspect() methods and by the THtml class.

Definition at line 33 of file TDataMember.h.

Public Member Functions
	TDataMember (DataMemberInfo_t info=0, TClass cl=0)

virtual	~TDataMember ()
	TDataMember dtor deletes adopted CINT DataMemberInfo object. More...

Int_t	GetArrayDim () const
	Return number of array dimensions. More...

DeclId_t	GetDeclId () const

Int_t	GetMaxIndex (Int_t dim) const
	Return maximum index for array dimension "dim". More...

TClass *	GetClass () const

TDataType *	GetDataType () const

Long_t	GetOffset () const
	Get offset from "this". More...

Long_t	GetOffsetCint () const
	Get offset from "this" using the information in CINT only. More...

const char *	GetTypeName () const
	Get type of data member, e,g.: "class TDirectory*" -> "TDirectory". More...

const char *	GetFullTypeName () const
	Get full type description of data member, e,g.: "class TDirectory*". More...

const char *	GetTrueTypeName () const
	Get full type description of data member, e,g.: "class TDirectory*". More...

const char *	GetArrayIndex () const
	If the data member is pointer and has a valid array size in its comments GetArrayIndex returns a string pointing to it; otherwise it returns an empty string. More...

Int_t	GetUnitSize () const
	Get the sizeof the underlying type of the data member (i.e. More...

TList *	GetOptions () const
	Returns list of options - list of TOptionListItems. More...

TMethodCall *	SetterMethod (TClass *cl)
	Return a TMethodCall method responsible for setting the value of data member. More...

TMethodCall *	GetterMethod (TClass *cl=0)
	Return a TMethodCall method responsible for getting the value of data member. More...

Bool_t	IsBasic () const
	Return true if data member is a basic type, e.g. char, int, long... More...

Bool_t	IsEnum () const
	Return true if data member is an enum. More...

Bool_t	IsaPointer () const
	Return true if data member is a pointer. More...

Bool_t	IsPersistent () const

Int_t	IsSTLContainer ()
	The return type is defined in TDictionary (kVector, kList, etc.) More...

Bool_t	IsValid ()
	Return true if this data member object is pointing to a currently loaded data member. More...

Long_t	Property () const
	Get property description word. For meaning of bits see EProperty. More...

void	SetClass (TClass *cl)

virtual bool	Update (DataMemberInfo_t *info)
	Update the TFunction to reflect the new info. More...

Public Member Functions inherited from TDictionary
	TDictionary ()

	TDictionary (const char *name)

	TDictionary (const TDictionary &dict)

virtual	~TDictionary ()

TDictionary &	operator= (const TDictionary &other)

void	CreateAttributeMap ()

TDictAttributeMap *	GetAttributeMap () const

Public Member Functions inherited from TNamed
	TNamed ()

	TNamed (const char name, const char title)

	TNamed (const TString &name, const TString &title)

	TNamed (const TNamed &named)

TNamed &	operator= (const TNamed &rhs)
	TNamed assignment operator. More...

virtual	~TNamed ()

virtual void	Clear (Option_t *option="")
	Set name and title to empty strings (""). More...

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

virtual Int_t	Compare (const TObject *obj) const
	Compare two TNamed objects. More...

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

virtual void	FillBuffer (char *&buffer)
	Encode TNamed into output buffer. More...

virtual const char *	GetName () const
	Returns name of object. More...

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

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

virtual Bool_t	IsSortable () const

virtual void	SetName (const char *name)
	Change (i.e. More...

virtual void	SetNameTitle (const char name, const char title)
	Change (i.e. set) all the TNamed parameters (name and title). More...

virtual void	SetTitle (const char *title="")
	Change (i.e. set) the title of the TNamed. More...

virtual void	ls (Option_t *option="") const
	List TNamed name and title. More...

virtual void	Print (Option_t *option="") const
	Print TNamed name and title. More...

virtual Int_t	Sizeof () const
	Return size of the TNamed part of the TObject. More...

Public Member Functions inherited from TObject
	TObject ()

	TObject (const TObject &object)
	TObject copy ctor. More...

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

virtual	~TObject ()
	TObject destructor. More...

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

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

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

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

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

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

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

virtual TObject *	DrawClone (Option_t *option="") const
	Draw a clone of this object in the current pad. More...

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

virtual void	Execute (const char method, const char params, Int_t *error=0)
	Execute method on this object with the given parameter string, e.g. More...

virtual void	Execute (TMethod method, TObjArray params, Int_t *error=0)
	Execute method on this object with parameters stored in the TObjArray. More...

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

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

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

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

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

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

virtual Option_t *	GetOption () const

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

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

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

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

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

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

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

Bool_t	IsOnHeap () const

Bool_t	IsZombie () const

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

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

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

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

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

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

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

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

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

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

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

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

void *	operator new (size_t sz)

void *	operator new[] (size_t sz)

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

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

void	operator delete (void *ptr)
	Operator delete. More...

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

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

void	SetBit (UInt_t f)

void	ResetBit (UInt_t f)

Bool_t	TestBit (UInt_t f) const

Int_t	TestBits (UInt_t f) const

void	InvertBit (UInt_t f)

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

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

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

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

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

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

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). More...

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

Protected Member Functions
	TDataMember (const TDataMember &)
	copy constructor More...

TDataMember &	operator= (const TDataMember &)
	assignment operator More...

Protected Member Functions inherited from TDictionary
Bool_t	UpdateInterpreterStateMarker ()
	the Cling ID of the transaction that last updated the object More...

Protected Member Functions inherited from TObject
void	MakeZombie ()

virtual void	DoError (int level, const char location, const char fmt, va_list va) const
	Interface to ErrorHandler (protected). More...

Private Types
enum	{ kObjIsPersistent = BIT(2) }

Private Member Functions
void	Init (bool afterReading)
	Routines called by the constructor and Update to reset the member's information. More...

Private Attributes
DataMemberInfo_t *	fInfo

TClass *	fClass
	pointer to CINT data member info More...

TDataType *	fDataType
	pointer to the class More...

Long_t	fOffset
	pointer to data basic type descriptor More...

Int_t	fSTLCont

Long_t	fProperty

Int_t	fArrayDim

Int_t *	fArrayMaxIndex

TString	fArrayIndex

TString	fTypeName

TString	fFullTypeName

TString	fTrueTypeName

TMethodCall *	fValueGetter

TMethodCall *	fValueSetter
	method that returns a value; More...

TList *	fOptions
	method which sets value; More...

Additional Inherited Members
Public Types inherited from TDictionary
enum	ESTLType { kNone = ROOT::kNotSTL, kVector = ROOT::kSTLvector, kList = ROOT::kSTLlist, kForwardlist = ROOT::kSTLforwardlist, kDeque = ROOT::kSTLdeque, kMap = ROOT::kSTLmap, kMultimap = ROOT::kSTLmultimap, kSet = ROOT::kSTLset, kMultiset = ROOT::kSTLmultiset, kUnorderedSet = ROOT::kSTLunorderedset, kUnorderedMultiset = ROOT::kSTLunorderedmultiset, kUnorderedMap = ROOT::kSTLunorderedmap, kUnorderedMultimap = ROOT::kSTLunorderedmultimap, kBitset = ROOT::kSTLbitset }

typedef const void *	DeclId_t

Public Types inherited from TObject
enum	EStatusBits { kCanDelete = BIT(0), kMustCleanup = BIT(3), kObjInCanvas = BIT(3), kIsReferenced = BIT(4), kHasUUID = BIT(5), kCannotPick = BIT(6), kNoContextMenu = BIT(8), kInvalidObject = BIT(13) }

enum	{ kIsOnHeap = 0x01000000, kNotDeleted = 0x02000000, kZombie = 0x04000000, kBitMask = 0x00ffffff }

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

Static Public Member Functions inherited from TDictionary
static TDictionary *	GetDictionary (const char *name)

static TDictionary *	GetDictionary (const type_info &typeinfo)

Static Public Member Functions inherited from TObject
static Long_t	GetDtorOnly ()
	Return destructor only flag. More...

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

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

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

Protected Attributes inherited from TNamed
TString	fName

TString	fTitle

#include <TDataMember.h>

Inheritance diagram for TDataMember:

[legend]

Member Enumeration Documentation

anonymous enum

private

Enumerator
kObjIsPersistent

Definition at line 36 of file TDataMember.h.

Constructor & Destructor Documentation

TDataMember::TDataMember ( const TDataMember & dm )

protected

copy constructor

Definition at line 463 of file TDataMember.cxx.

TDataMember::TDataMember	(	DataMemberInfo_t *	info = `0`,
		TClass *	cl = `0`
	)

TDataMember::~TDataMember ( )

virtual

TDataMember dtor deletes adopted CINT DataMemberInfo object.

Definition at line 523 of file TDataMember.cxx.

Member Function Documentation

Int_t TDataMember::GetArrayDim ( ) const

Return number of array dimensions.

Definition at line 538 of file TDataMember.cxx.

Referenced by TStreamerInfo::Build(), TStreamerInfo::BuildOld(), TStreamerInfo::CompareContent(), TProtoClass::TProtoRealData::CreateRealData(), TPad::DrawClassObject(), TXMLPlayer::ElementGetter(), TXMLPlayer::ElementSetter(), TClass::GetCheckSum(), Cppyy::GetDatamemberType(), TRealData::GetName(), TBranchClones::Init(), TBufferJSON::JsonWriteMember(), TClassDocOutput::ListDataMembers(), and TRootSniffer::ScanObjectMembers().

const char * TDataMember::GetArrayIndex ( ) const

If the data member is pointer and has a valid array size in its comments GetArrayIndex returns a string pointing to it; otherwise it returns an empty string.

Definition at line 560 of file TDataMember.cxx.

Referenced by TTree::BranchOld(), TStreamerInfo::Build(), TStreamerInfo::CompareContent(), TBufferJSON::ConvertToJSON(), TRootSniffer::ScanObjectMembers(), and TBranchObject::SetAddress().

TClass* TDataMember::GetClass ( ) const

inline

Definition at line 73 of file TDataMember.h.

Referenced by TStreamerInfo::Build(), GetterMethod(), Init(), InitCounter(), TInspectCanvas::InspectObject(), TClassDocOutput::ListDataMembers(), TDocOutput::ReferenceEntity(), SetterMethod(), TProtoClass::TProtoClass(), and TProtoClass::TProtoRealData::TProtoRealData().

TDataType* TDataMember::GetDataType ( ) const

inline

Definition at line 74 of file TDataMember.h.

Referenced by TDocParser::AddClassDataMembersRecursively(), TTree::BranchOld(), TStreamerInfo::Build(), TStreamerInfo::BuildOld(), TStreamerInfo::CompareContent(), TClass::GetCheckSum(), TXMLPlayer::GetMemberTypeName(), TClass::GetMissingDictionariesForMembers(), THnSparse::GetSparseFractionMem(), GetUnitSize(), TBranchClones::Init(), TInspectCanvas::InspectObject(), TBufferJSON::JsonWriteMember(), and TBranchObject::SetAddress().

TDictionary::DeclId_t TDataMember::GetDeclId ( ) const

Definition at line 575 of file TDataMember.cxx.

Referenced by TListOfDataMembers::MapObject(), TListOfDataMembers::UnmapObject(), and TListOfDataMembers::Update().

const char * TDataMember::GetFullTypeName ( ) const

Get full type description of data member, e,g.: "class TDirectory*".

Definition at line 606 of file TDataMember.cxx.

Referenced by TTree::BranchOld(), TStreamerInfo::BuildOld(), TClass::GetCheckSum(), TBranchClones::Init(), Init(), TInspectCanvas::InspectObject(), TClassDocOutput::ListDataMembers(), and TDocOutput::ReferenceEntity().

Int_t TDataMember::GetMaxIndex ( Int_t dim ) const

Return maximum index for array dimension "dim".

Definition at line 584 of file TDataMember.cxx.

Referenced by TStreamerInfo::Build(), TProtoClass::TProtoRealData::CreateRealData(), TPad::DrawClassObject(), TClass::GetCheckSum(), Cppyy::GetDatamemberType(), Cppyy::GetDimensionSize(), TRealData::GetName(), TBranchClones::Init(), TBufferJSON::JsonWriteMember(), TClassDocOutput::ListDataMembers(), and TRootSniffer::ScanObjectMembers().

Long_t TDataMember::GetOffset ( ) const

Get offset from "this".

Definition at line 624 of file TDataMember.cxx.

Referenced by TXMLPlayer::ElementGetter(), TXMLPlayer::ElementSetter(), PyROOT::GetCppGlobal(), and TStreamerInfo::GetDataMemberOffset().

Long_t TDataMember::GetOffsetCint ( ) const

Get offset from "this" using the information in CINT only.

Definition at line 673 of file TDataMember.cxx.

Referenced by Cppyy::GetDatamemberOffset().

TList * TDataMember::GetOptions ( ) const

Returns list of options - list of TOptionListItems.

Definition at line 794 of file TDataMember.cxx.

Referenced by TGuiBldDragManager::AddClassMenuMethods(), TRootContextMenu::CreateMenu(), TRootContextMenu::Dialog(), TQCanvasMenu::Dialog(), and TMethodArg::GetOptions().

TMethodCall * TDataMember::GetterMethod ( TClass * cl = 0 )

Return a TMethodCall method responsible for getting the value of data member.

The cl argument specifies the class of the object which will be used to call this method (in case of multiple inheritance TMethodCall needs to know this to calculate the proper offset).

Definition at line 806 of file TDataMember.cxx.

Referenced by TGuiBldDragManager::AddClassMenuMethods(), TRootContextMenu::CreateMenu(), TRootContextMenu::Dialog(), TQCanvasMenu::Dialog(), TXMLPlayer::ElementGetter(), and TToggle::SetToggledObject().

const char * TDataMember::GetTrueTypeName ( ) const

Get full type description of data member, e,g.: "class TDirectory*".

Definition at line 616 of file TDataMember.cxx.

Referenced by TStreamerInfo::Build(), TStreamerInfo::CompareContent(), TBufferJSON::ConvertToJSON(), TClass::GetCheckSum(), PyROOT::GetCppGlobal(), Cppyy::GetDatamemberType(), GetUnitSize(), IsSTLContainer(), TBufferJSON::JsonWriteMember(), and TRootSniffer::ScanObjectMembers().

const char * TDataMember::GetTypeName ( ) const

Get type of data member, e,g.: "class TDirectory*" -> "TDirectory".

Definition at line 597 of file TDataMember.cxx.

Referenced by TTree::BranchOld(), TStreamerInfo::Build(), TStreamerInfo::BuildOld(), TBufferJSON::ConvertToJSON(), TRootSniffer::FindInHierarchy(), TBranchElement::GetCurrentClass(), TXMLPlayer::GetMemberTypeName(), TClass::GetMissingDictionariesForMembers(), GetUnitSize(), Init(), TStreamerInfo::InsertArtificialElements(), TInspectCanvas::InspectObject(), TClassDocOutput::ListDataMembers(), TClassTree::ScanClasses(), TRootSniffer::ScanObjectMembers(), and TBranchObject::SetAddress().

Int_t TDataMember::GetUnitSize ( ) const

Get the sizeof the underlying type of the data member (i.e.

if the member is an array sizeof(member)/length)

Definition at line 688 of file TDataMember.cxx.

Referenced by TStreamerInfo::Build(), and TStreamerInfo::BuildOld().

void TDataMember::Init ( bool afterReading )

private

Routines called by the constructor and Update to reset the member's information.

afterReading is set when initializing after reading through Streamer().

Definition at line 190 of file TDataMember.cxx.

Referenced by Update().

Bool_t TDataMember::IsaPointer ( ) const

Return true if data member is a pointer.

Definition at line 723 of file TDataMember.cxx.

Referenced by TTree::BranchOld(), TStreamerInfo::Build(), TStreamerInfo::BuildOld(), TStreamerInfo::CompareContent(), TBufferJSON::ConvertToJSON(), TXMLPlayer::ElementGetter(), TXMLPlayer::ElementSetter(), TRootSniffer::FindInHierarchy(), GetArrayIndex(), TStreamerInfo::GetDataMemberOffset(), Cppyy::GetDatamemberType(), TRealData::GetName(), GetOffset(), GetUnitSize(), TBranchClones::Init(), TInspectCanvas::InspectObject(), TClassTree::ScanClasses(), TRootSniffer::ScanObjectMembers(), and TBranchObject::SetAddress().

Bool_t TDataMember::IsBasic ( ) const

Return true if data member is a basic type, e.g. char, int, long...

Definition at line 705 of file TDataMember.cxx.

Referenced by TTree::BranchOld(), TStreamerInfo::BuildOld(), TBufferJSON::ConvertToJSON(), TRootSniffer::FindInHierarchy(), Cppyy::GetDatamemberType(), TXMLPlayer::GetMemberTypeName(), GetUnitSize(), TBranchClones::Init(), Init(), TInspectCanvas::InspectObject(), TBufferJSON::JsonWriteMember(), TClassTree::ScanClasses(), TRootSniffer::ScanObjectMembers(), and TBranchObject::SetAddress().

Bool_t TDataMember::IsEnum ( ) const

Return true if data member is an enum.

Definition at line 714 of file TDataMember.cxx.

Referenced by TXMLPlayer::GetMemberTypeName(), GetUnitSize(), and Init().

Bool_t TDataMember::IsPersistent ( ) const

inline

Definition at line 89 of file TDataMember.h.

Referenced by TTree::BranchOld(), TBranchElement::Browse(), TStreamerInfo::Build(), TStreamerInfo::BuildOld(), TStreamerInfo::CompareContent(), TClass::GetCheckSum(), TClass::GetMissingDictionariesForMembers(), TBranchClones::Init(), TCling::InspectMembers(), and TBranchObject::SetAddress().

int TDataMember::IsSTLContainer ( )

The return type is defined in TDictionary (kVector, kList, etc.)

Definition at line 732 of file TDataMember.cxx.

Referenced by TStreamerInfo::Build(), TBufferJSON::ConvertToJSON(), TRootSniffer::FindInHierarchy(), TBufferJSON::JsonWriteMember(), and TRootSniffer::ScanObjectMembers().

Bool_t TDataMember::IsValid ( )

Return true if this data member object is pointing to a currently loaded data member.

If a function is unloaded after the TDataMember is created, the TDataMember will be set to be invalid.

Definition at line 745 of file TDataMember.cxx.

Referenced by GetOffsetCint(), and TCling::UpdateListsOnUnloaded().

TDataMember & TDataMember::operator= ( const TDataMember & dm )

protected

assignment operator

Definition at line 488 of file TDataMember.cxx.

Long_t TDataMember::Property ( ) const

virtual

Get property description word. For meaning of bits see EProperty.

Implements TDictionary.

Definition at line 769 of file TDataMember.cxx.

Referenced by TDocParser::AddClassDataMembersRecursively(), TStreamerInfo::CompareContent(), TClassDocOutput::CreateDotClassChartInhMem(), TProtoClass::DataMemberIndex(), TXMLPlayer::ElementGetter(), TXMLPlayer::ElementSetter(), TProtoClass::FindDataMember(), TClass::GetCheckSum(), TStreamerInfo::GetDataMemberOffset(), GetFullTypeName(), TClass::GetMissingDictionariesForMembers(), GetTypeName(), IsaPointer(), IsBasic(), Cppyy::IsConstData(), IsEnum(), Cppyy::IsEnumData(), Cppyy::IsPublicData(), Cppyy::IsStaticData(), TClassDocOutput::ListDataMembers(), and TRootSniffer::ScanObjectMembers().

void TDataMember::SetClass ( TClass * cl )

inline

Definition at line 93 of file TDataMember.h.

TMethodCall * TDataMember::SetterMethod ( TClass * cl )

Return a TMethodCall method responsible for setting the value of data member.

The cl argument specifies the class of the object which will be used to call this method (in case of multiple inheritance TMethodCall needs to know this to calculate the proper offset).

Definition at line 850 of file TDataMember.cxx.

Referenced by TXMLPlayer::ElementSetter(), and TToggle::SetToggledObject().

Bool_t TDataMember::Update ( DataMemberInfo_t * info )

virtual

Update the TFunction to reflect the new info.

This can be used to implement unloading (info == 0) and then reloading (info being the 'new' decl address).

Definition at line 893 of file TDataMember.cxx.

Referenced by TListOfDataMembers::Get(), IsValid(), TCling::UnloadClassMembers(), TListOfDataMembers::UnmapObject(), and TCling::UpdateListsOnUnloaded().