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TDataMember Class Reference

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;};
...
}
float Float_t
Definition: RtypesCore.h:53
Double_t x[n]
Definition: legend1.C:17

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 !!!
#define c(i)
Definition: RSha256.hxx:101
long Long_t
Definition: RtypesCore.h:50
The Canvas class.
Definition: TCanvas.h:31
TClass instances represent classes, structs and namespaces in the ROOT type system.
Definition: TClass.h:75
TDataMember * GetDataMember(const char *datamember) const
Return pointer to datamember object with name "datamember".
Definition: TClass.cxx:3288
All ROOT classes may have RTTI (run time type identification) support added.
Definition: TDataMember.h:31
TMethodCall * SetterMethod(TClass *cl)
Return a TMethodCall method responsible for setting the value of data member.
TMethodCall * GetterMethod(TClass *cl=0)
Return a TMethodCall method responsible for getting the value of data member.
Method or function calling interface.
Definition: TMethodCall.h:37
void Execute(const char *, const char *, int *=0)
Execute method on this object with the given parameter string, e.g.
Definition: TMethodCall.h:64
auto * l
Definition: textangle.C:4

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;};
}
int Int_t
Definition: RtypesCore.h:41

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", ... ) }
TCppMethod_t GetMethod(TCppScope_t scope, TCppIndex_t imeth)
Definition: Cppyy.cxx:747

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: @code 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 31 of file TDataMember.h.

Public Member Functions

 TDataMember (DataMemberInfo_t *info=0, TClass *cl=0)
 Default TDataMember ctor. More...
 
virtual ~TDataMember ()
 TDataMember dtor deletes adopted CINT DataMemberInfo object. More...
 
Int_t GetArrayDim () const
 Return number of array dimensions. 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...
 
TClassGetClass () const
 
TDataTypeGetDataType () const
 
DeclId_t GetDeclId () const
 
const char * GetFullTypeName () const
 Get full type description of data member, e,g.: "class TDirectory*". More...
 
Int_t GetMaxIndex (Int_t dim) const
 Return maximum index for array dimension "dim". More...
 
Long_t GetOffset () const
 Get offset from "this". More...
 
Long_t GetOffsetCint () const
 Get offset from "this" using the information in CINT only. More...
 
TListGetOptions () const
 Returns list of options - list of TOptionListItems. More...
 
TMethodCallGetterMethod (TClass *cl=0)
 Return a TMethodCall method responsible for getting the value of data member. More...
 
const char * GetTrueTypeName () const
 Get full type description of data member, e,g.: "class TDirectory*". More...
 
const char * GetTypeName () const
 Get type of data member, e,g.: "class TDirectory*" -> "TDirectory". More...
 
Int_t GetUnitSize () const
 Get the sizeof the underlying type of the data member (i.e. More...
 
Bool_t IsaPointer () const
 Return true if data member is a pointer. 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 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)
 
TMethodCallSetterMethod (TClass *cl)
 Return a TMethodCall method responsible for setting the value of data member. More...
 
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 ()
 
void CreateAttributeMap ()
 
TDictAttributeMapGetAttributeMap () const
 
TDictionaryoperator= (const TDictionary &other)
 
virtual Long_t Property () const =0
 
- Public Member Functions inherited from TNamed
 TNamed ()
 
 TNamed (const char *name, const char *title)
 
 TNamed (const TNamed &named)
 TNamed copy ctor. More...
 
 TNamed (const TString &name, const TString &title)
 
virtual ~TNamed ()
 TNamed destructor. More...
 
virtual void Clear (Option_t *option="")
 Set name and title to empty strings (""). More...
 
virtual TObjectClone (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 ls (Option_t *option="") const
 List TNamed name and title. More...
 
TNamedoperator= (const TNamed &rhs)
 TNamed assignment operator. More...
 
virtual void Print (Option_t *option="") const
 Print TNamed name and title. More...
 
virtual void SetName (const char *name)
 Set the name of the TNamed. More...
 
virtual void SetNameTitle (const char *name, const char *title)
 Set all the TNamed parameters (name and title). More...
 
virtual void SetTitle (const char *title="")
 Set the title of the TNamed. More...
 
virtual Int_t Sizeof () const
 Return size of the TNamed part of the TObject. More...
 
- Public Member Functions inherited from TObject
 TObject ()
 TObject constructor. More...
 
 TObject (const TObject &object)
 TObject copy ctor. More...
 
virtual ~TObject ()
 TObject destructor. 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...
 
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...
 
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. More...
 
virtual const char * ClassName () const
 Returns name of class to which the object belongs. More...
 
virtual void Clear (Option_t *="")
 
virtual TObjectClone (const char *newname="") const
 Make a clone of an object using the Streamer facility. More...
 
virtual Int_t Compare (const TObject *obj) const
 Compare abstract method. More...
 
virtual void Copy (TObject &object) const
 Copy this to obj. 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 TObjectDrawClone (Option_t *option="") const
 Draw a clone of this object in the current selected pad for instance with: gROOT->SetSelectedPad(gPad). More...
 
virtual void Dump () const
 Dump contents of object on stdout. More...
 
virtual void Error (const char *method, const char *msgfmt,...) const
 Issue error message. 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 void Fatal (const char *method, const char *msgfmt,...) const
 Issue fatal error message. More...
 
virtual TObjectFindObject (const char *name) const
 Must be redefined in derived classes. More...
 
virtual TObjectFindObject (const TObject *obj) const
 Must be redefined in derived classes. More...
 
virtual Option_tGetDrawOption () const
 Get option used by the graphics system to draw this object. More...
 
virtual const char * GetIconName () const
 Returns mime type name of object. More...
 
virtual const char * GetName () const
 Returns name of object. More...
 
virtual char * GetObjectInfo (Int_t px, Int_t py) const
 Returns string containing info about the object at position (px,py). More...
 
virtual Option_tGetOption () const
 
virtual const char * GetTitle () const
 Returns title of object. More...
 
virtual UInt_t GetUniqueID () const
 Return the unique object id. More...
 
virtual Bool_t HandleTimer (TTimer *timer)
 Execute action in response of a timer timing out. More...
 
virtual ULong_t Hash () const
 Return hash value for this object. More...
 
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. More...
 
virtual void Info (const char *method, const char *msgfmt,...) const
 Issue info message. 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...
 
void InvertBit (UInt_t f)
 
virtual Bool_t IsEqual (const TObject *obj) const
 Default equal comparison (objects are equal if they have the same address in memory). More...
 
virtual Bool_t IsFolder () const
 Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). More...
 
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. 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...
 
virtual Bool_t Notify ()
 This method must be overridden to handle object notification. More...
 
void Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const
 Use this method to declare a method obsolete. More...
 
void operator delete (void *ptr)
 Operator delete. More...
 
void operator delete[] (void *ptr)
 Operator delete []. More...
 
voidoperator new (size_t sz)
 
voidoperator new (size_t sz, void *vp)
 
voidoperator new[] (size_t sz)
 
voidoperator new[] (size_t sz, void *vp)
 
TObjectoperator= (const TObject &rhs)
 TObject assignment operator. 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 void Print (Option_t *option="") const
 This method must be overridden when a class wants to print itself. 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...
 
void ResetBit (UInt_t f)
 
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...
 
void SetBit (UInt_t f)
 
void SetBit (UInt_t f, Bool_t set)
 Set or unset the user status bits as specified in f. 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 SysError (const char *method, const char *msgfmt,...) const
 Issue system error message. More...
 
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. More...
 
virtual void Warning (const char *method, const char *msgfmt,...) const
 Issue warning message. 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...
 

Protected Member Functions

 TDataMember (const TDataMember &)
 copy constructor More...
 
TDataMemberoperator= (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
virtual void DoError (int level, const char *location, const char *fmt, va_list va) const
 Interface to ErrorHandler (protected). More...
 
void MakeZombie ()
 

Private Types

enum  EStatusBits { 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

Int_t fArrayDim
 
TString fArrayIndex
 
Int_tfArrayMaxIndex
 
TClassfClass
 pointer to CINT data member info More...
 
TDataTypefDataType
 pointer to the class More...
 
TString fFullTypeName
 
DataMemberInfo_t * fInfo
 
Long_t fOffset
 pointer to data basic type descriptor More...
 
TListfOptions
 method which sets value; More...
 
Long_t fProperty
 
Int_t fSTLCont
 
TString fTrueTypeName
 
TString fTypeName
 
TMethodCallfValueGetter
 
TMethodCallfValueSetter
 method that returns a value; More...
 

Additional Inherited Members

- Public Types inherited from TDictionary
typedef const voidDeclId_t
 
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
}
 
- Public Types inherited from TObject
enum  {
  kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 ,
  kBitMask = 0x00ffffff
}
 
enum  { kSingleKey = BIT(0) , kOverwrite = BIT(1) , kWriteDelete = BIT(2) }
 
enum  EDeprecatedStatusBits { kObjInCanvas = BIT(3) }
 
enum  EStatusBits {
  kCanDelete = BIT(0) , kMustCleanup = BIT(3) , kIsReferenced = BIT(4) , kHasUUID = BIT(5) ,
  kCannotPick = BIT(6) , kNoContextMenu = BIT(8) , kInvalidObject = BIT(13)
}
 
- Static Public Member Functions inherited from TDictionary
static TDictionaryGetDictionary (const char *name)
 
static TDictionaryGetDictionary (const std::type_info &typeinfo)
 
- Static Public Member Functions inherited from TObject
static Long_t GetDtorOnly ()
 Return destructor only flag. More...
 
static Bool_t GetObjectStat ()
 Get status of object stat flag. More...
 
static void SetDtorOnly (void *obj)
 Set destructor only 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

◆ EStatusBits

Enumerator
kObjIsPersistent 

Definition at line 34 of file TDataMember.h.

Constructor & Destructor Documentation

◆ TDataMember() [1/2]

TDataMember::TDataMember ( const TDataMember dm)
protected

copy constructor

Definition at line 470 of file TDataMember.cxx.

◆ TDataMember() [2/2]

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

Default TDataMember ctor.

TDataMembers are constructed in TClass via a call to TCling::CreateListOfDataMembers(). It parses the comment string, initializes optionlist and getter/setter methods.

Definition at line 169 of file TDataMember.cxx.

◆ ~TDataMember()

TDataMember::~TDataMember ( )
virtual

TDataMember dtor deletes adopted CINT DataMemberInfo object.

Definition at line 530 of file TDataMember.cxx.

Member Function Documentation

◆ GetArrayDim()

Int_t TDataMember::GetArrayDim ( ) const

Return number of array dimensions.

Definition at line 545 of file TDataMember.cxx.

◆ GetArrayIndex()

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 567 of file TDataMember.cxx.

◆ GetClass()

TClass * TDataMember::GetClass ( ) const
inline

Definition at line 73 of file TDataMember.h.

◆ GetDataType()

TDataType * TDataMember::GetDataType ( ) const
inline

Definition at line 74 of file TDataMember.h.

◆ GetDeclId()

TDictionary::DeclId_t TDataMember::GetDeclId ( ) const

Definition at line 582 of file TDataMember.cxx.

◆ GetFullTypeName()

const char * TDataMember::GetFullTypeName ( ) const

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

Definition at line 613 of file TDataMember.cxx.

◆ GetMaxIndex()

Int_t TDataMember::GetMaxIndex ( Int_t  dim) const

Return maximum index for array dimension "dim".

Definition at line 591 of file TDataMember.cxx.

◆ GetOffset()

Long_t TDataMember::GetOffset ( ) const

Get offset from "this".

Definition at line 631 of file TDataMember.cxx.

◆ GetOffsetCint()

Long_t TDataMember::GetOffsetCint ( ) const

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

Definition at line 680 of file TDataMember.cxx.

◆ GetOptions()

TList * TDataMember::GetOptions ( ) const

Returns list of options - list of TOptionListItems.

Definition at line 801 of file TDataMember.cxx.

◆ GetterMethod()

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 813 of file TDataMember.cxx.

◆ GetTrueTypeName()

const char * TDataMember::GetTrueTypeName ( ) const

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

Definition at line 623 of file TDataMember.cxx.

◆ GetTypeName()

const char * TDataMember::GetTypeName ( ) const

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

Definition at line 604 of file TDataMember.cxx.

◆ GetUnitSize()

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 695 of file TDataMember.cxx.

◆ Init()

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 192 of file TDataMember.cxx.

◆ IsaPointer()

Bool_t TDataMember::IsaPointer ( ) const

Return true if data member is a pointer.

Definition at line 730 of file TDataMember.cxx.

◆ IsBasic()

Bool_t TDataMember::IsBasic ( ) const

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

Definition at line 712 of file TDataMember.cxx.

◆ IsEnum()

Bool_t TDataMember::IsEnum ( ) const

Return true if data member is an enum.

Definition at line 721 of file TDataMember.cxx.

◆ IsPersistent()

Bool_t TDataMember::IsPersistent ( ) const
inline

Definition at line 89 of file TDataMember.h.

◆ IsSTLContainer()

int TDataMember::IsSTLContainer ( )

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

Definition at line 739 of file TDataMember.cxx.

◆ IsValid()

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 752 of file TDataMember.cxx.

◆ operator=()

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

assignment operator

Definition at line 495 of file TDataMember.cxx.

◆ Property()

Long_t TDataMember::Property ( ) const
virtual

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

Implements TDictionary.

Definition at line 776 of file TDataMember.cxx.

◆ SetClass()

void TDataMember::SetClass ( TClass cl)
inline

Definition at line 93 of file TDataMember.h.

◆ SetterMethod()

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 857 of file TDataMember.cxx.

◆ Update()

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 900 of file TDataMember.cxx.

Member Data Documentation

◆ fArrayDim

Int_t TDataMember::fArrayDim
private

Definition at line 45 of file TDataMember.h.

◆ fArrayIndex

TString TDataMember::fArrayIndex
private

Definition at line 47 of file TDataMember.h.

◆ fArrayMaxIndex

Int_t* TDataMember::fArrayMaxIndex
private

Definition at line 46 of file TDataMember.h.

◆ fClass

TClass* TDataMember::fClass
private

pointer to CINT data member info

Definition at line 39 of file TDataMember.h.

◆ fDataType

TDataType* TDataMember::fDataType
private

pointer to the class

Definition at line 40 of file TDataMember.h.

◆ fFullTypeName

TString TDataMember::fFullTypeName
private

Definition at line 50 of file TDataMember.h.

◆ fInfo

DataMemberInfo_t* TDataMember::fInfo
private

Definition at line 38 of file TDataMember.h.

◆ fOffset

Long_t TDataMember::fOffset
private

pointer to data basic type descriptor

Definition at line 42 of file TDataMember.h.

◆ fOptions

TList* TDataMember::fOptions
private

method which sets value;

Definition at line 58 of file TDataMember.h.

◆ fProperty

Long_t TDataMember::fProperty
private

Definition at line 44 of file TDataMember.h.

◆ fSTLCont

Int_t TDataMember::fSTLCont
private

Definition at line 43 of file TDataMember.h.

◆ fTrueTypeName

TString TDataMember::fTrueTypeName
private

Definition at line 51 of file TDataMember.h.

◆ fTypeName

TString TDataMember::fTypeName
private

Definition at line 49 of file TDataMember.h.

◆ fValueGetter

TMethodCall* TDataMember::fValueGetter
private

Definition at line 56 of file TDataMember.h.

◆ fValueSetter

TMethodCall* TDataMember::fValueSetter
private

method that returns a value;

Definition at line 57 of file TDataMember.h.

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