A small helper class to implement reading a data member on an object stored in a TTree.

Definition at line 162 of file TFormLeafInfo.h.

Public Member Functions
	TFormLeafInfoDirect (TBranchElement *from)
	Constructor.

TFormLeafInfo *	DeepCopy () const override
	Copy this object and its content.

void *	GetLocalValuePointer (char *thisobj, Int_t instance=0) override
	Note this should probably never be executed.

void *	GetLocalValuePointer (TLeaf *leaf, Int_t instance=0) override
	Return the address of the underlying value.

Double_t	GetValue (TLeaf *leaf, Int_t instance=0) override

template<typename T >
T	GetValueImpl (TLeaf *leaf, Int_t instance=0)
	Return the underlying value.

Long64_t	GetValueLong64 (TLeaf *leaf, Int_t instance=0) override

LongDouble_t	GetValueLongDouble (TLeaf *leaf, Int_t instance=0) override

Double_t	ReadValue (char *, Int_t=0) override
	Read the value at the given memory location.

Long64_t	ReadValueLong64 (char *where, Int_t i=0) override

LongDouble_t	ReadValueLongDouble (char *where, Int_t i=0) override

Public Member Functions inherited from TFormLeafInfo
	TFormLeafInfo (const TFormLeafInfo &orig)
	Constructor.

	TFormLeafInfo (TClass classptr=nullptr, Longptr_t offset=0, TStreamerElement element=nullptr)
	Constructor.

	~TFormLeafInfo () override
	Delete this object and all its content.

virtual void	AddOffset (Int_t offset, TStreamerElement *element)
	Increase the offset of this element.

virtual Int_t	GetArrayLength ()
	Return the current length of the array.

virtual TClass *	GetClass () const
	Get the class of the underlying data.

virtual Int_t	GetCounterValue (TLeaf *leaf)
	Return the size of the underlying array for the current entry in the TTree.

Int_t	GetMultiplicity ()
	Reminder of the meaning of fMultiplicity:

virtual Int_t	GetNdata ()
	Get the number of element in the entry.

Int_t	GetNdata (TLeaf *leaf)

char *	GetObjectAddress (TLeafElement *leaf, Int_t &instance)
	Returns the location of the object pointed to.

virtual Int_t	GetPrimaryIndex ()
	Method for multiple variable dimensions.

virtual Int_t	GetSize (Int_t index)
	For the current entry, and the value 'index' for the main array, return the size of the secondary variable dimension of the 'array'.

virtual Int_t	GetSumOfSizes ()
	Total all the elements that are available for the current entry for the secondary variable dimension.

template<typename T >
T	GetTypedValue (TLeaf *leaf, Int_t instance=0)

template<typename T >
T	GetValueImpl (TLeaf *leaf, Int_t instance=0)
	Return result of a leafobject method.

virtual void *	GetValuePointer (char *from, Int_t instance=0)
	returns the address of the value pointed to by the TFormLeafInfo.

virtual void *	GetValuePointer (TLeaf *leaf, Int_t instance=0)
	returns the address of the value pointed to by the serie of TFormLeafInfo.

virtual Int_t	GetVarDim ()
	Return the index of the dimension which varies for each elements of an enclosing array (typically a TClonesArray)

virtual Int_t	GetVirtVarDim ()
	Return the virtual index (for this expression) of the dimension which varies for each elements of an enclosing array (typically a TClonesArray)

virtual Bool_t	HasCounter () const
	Return true if any of underlying data has a array size counter.

virtual Bool_t	IsInteger () const
	Return true if the underlying data is an integral value.

virtual Bool_t	IsReference () const

virtual Bool_t	IsString () const
	Return true if the underlying data is a string.

virtual void	LoadSizes (TBranch *branch)
	Load the current array sizes.

TFormLeafInfo &	operator= (const TFormLeafInfo &orig)
	Exception safe assignment operator.

virtual Int_t	ReadCounterValue (char *where)
	Return the size of the underlying array for the current entry in the TTree.

template<typename T >
T	ReadTypedValue (char *where, Int_t instance=0)

template<typename T >
T	ReadValueImpl (char *where, Int_t instance=0)
	Read the value at the given memory location.

virtual void	SetBranch (TBranch *br)

virtual void	SetPrimaryIndex (Int_t index)
	Set the primary index value.

virtual void	SetSecondaryIndex (Int_t index)
	Set the primary index value.

virtual void	SetSize (Int_t index, Int_t val)
	Set the current size of the arrays.

void	Swap (TFormLeafInfo &other)

virtual Bool_t	Update ()
	We reloading all cached information in case the underlying class information has changed (for example when changing from the 'emulated' class to the real class.

virtual void	UpdateSizes (TArrayI *garr)
	Set the current sizes of the arrays.

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 const char *	GetName () const
	Returns 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)

virtual TClass *	IsA () const

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 (the base implementation is no-op).

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, void vp)
	Only called by placement new when throwing an exception.

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

void	operator delete[] (void ptr, void vp)
	Only called by placement new[] when throwing an exception.

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.

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

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.

Additional Inherited Members
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 )) }

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.

Public Attributes inherited from TFormLeafInfo
TClass *	fClass
	! This is the class of the data pointed to

TString	fClassName

TFormLeafInfo *	fCounter

TStreamerElement *	fElement
	! Descriptor of the data pointed to.

TString	fElementName

TFormLeafInfo *	fNext
	follow this to grab the inside information

Longptr_t	fOffset
	! Offset of the data pointed inside the class fClass

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 ()

Protected Attributes inherited from TFormLeafInfo
Int_t	fMultiplicity

#include <TFormLeafInfo.h>

Inheritance diagram for TFormLeafInfoDirect:

[legend]

Constructor & Destructor Documentation

◆ TFormLeafInfoDirect()

TFormLeafInfoDirect::TFormLeafInfoDirect ( TBranchElement * from )

Constructor.

Definition at line 943 of file TFormLeafInfo.cxx.

Member Function Documentation

◆ DeepCopy()

TFormLeafInfo * TFormLeafInfoDirect::DeepCopy ( ) const

overridevirtual

Copy this object and its content.

Reimplemented from TFormLeafInfo.

Definition at line 952 of file TFormLeafInfo.cxx.

◆ GetLocalValuePointer() [1/2]

void * TFormLeafInfoDirect::GetLocalValuePointer	(	char *	thisobj,
		Int_t	instance = `0`
	)

overridevirtual

Note this should probably never be executed.

Reimplemented from TFormLeafInfo.

Definition at line 992 of file TFormLeafInfo.cxx.

◆ GetLocalValuePointer() [2/2]

void * TFormLeafInfoDirect::GetLocalValuePointer	(	TLeaf *	leaf,
		Int_t	instance = `0`
	)

overridevirtual

Return the address of the underlying value.

Reimplemented from TFormLeafInfo.

Definition at line 980 of file TFormLeafInfo.cxx.

◆ GetValue()

Double_t TFormLeafInfoDirect::GetValue	(	TLeaf *	leaf,
		Int_t	instance = `0`
	)

inlineoverridevirtual

Reimplemented from TFormLeafInfo.

Definition at line 169 of file TFormLeafInfo.h.

◆ GetValueImpl()

template<typename T >

template LongDouble_t TFormLeafInfoDirect::GetValueImpl< LongDouble_t >	(	TLeaf *	leaf,
		Int_t	instance = `0`
	)

Return the underlying value.

Definition at line 970 of file TFormLeafInfo.cxx.

◆ GetValueLong64()

Long64_t TFormLeafInfoDirect::GetValueLong64	(	TLeaf *	leaf,
		Int_t	instance = `0`
	)

inlineoverridevirtual

Reimplemented from TFormLeafInfo.

Definition at line 169 of file TFormLeafInfo.h.

◆ GetValueLongDouble()

LongDouble_t TFormLeafInfoDirect::GetValueLongDouble	(	TLeaf *	leaf,
		Int_t	instance = `0`
	)

inlineoverridevirtual

Reimplemented from TFormLeafInfo.

Definition at line 169 of file TFormLeafInfo.h.

◆ ReadValue()

Double_t TFormLeafInfoDirect::ReadValue	(	char *	,
		Int_t	= `0`
	)

overridevirtual

Read the value at the given memory location.

Reimplemented from TFormLeafInfo.

Definition at line 960 of file TFormLeafInfo.cxx.

◆ ReadValueLong64()

Long64_t TFormLeafInfoDirect::ReadValueLong64	(	char *	where,
		Int_t	i = `0`
	)

inlineoverridevirtual

Reimplemented from TFormLeafInfo.

Definition at line 174 of file TFormLeafInfo.h.

◆ ReadValueLongDouble()

LongDouble_t TFormLeafInfoDirect::ReadValueLongDouble	(	char *	where,
		Int_t	i = `0`
	)

inlineoverridevirtual

Reimplemented from TFormLeafInfo.

Definition at line 175 of file TFormLeafInfo.h.

Libraries for TFormLeafInfoDirect:

[legend]

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

tree/treeplayer/inc/TFormLeafInfo.h
tree/treeplayer/src/TFormLeafInfo.cxx

Public Member Functions

Additional Inherited Members

Constructor & Destructor Documentation

◆ TFormLeafInfoDirect()

Member Function Documentation

◆ DeepCopy()

◆ GetLocalValuePointer() [1/2]

◆ GetLocalValuePointer() [2/2]

◆ GetValue()

◆ GetValueImpl()

◆ GetValueLong64()

◆ GetValueLongDouble()

◆ ReadValue()

◆ ReadValueLong64()

◆ ReadValueLongDouble()