REST_Reflection::TRestReflector Class Reference

Detailed Description

Wrapper class for different type objects

Supports both class objects(string, vector, TRestMetadata, etc.) and basic type objects(int, double, etc.). Implements object wrapping, type assembly, data member reflection, memory streaming, and string conversion. We set a type alias any for this class.

Example 1: Type assembly & Value assignment

TRestEventProcess* proc = REST_Reflection::Assembly("TRestRawSignalAnalysisProcess");
proc->PrintMetadata();
any member = REST_Reflection::GetDataMember(obj, "fIntegralRange");
TVector2 v(10, 50);
member.SetValue(v);
proc->PrintMetadata();

Example 2: Object wrapping & Memory streaming

map<int, double> a{{6, 1.4}, {7, 1.23}};
map<int, double> b;
ToString(any(a));    // returns string: "map<int,double> @0x7f2b03ff0038"
any(a) >> any(b);     // copy a's data to b
b[6]; // we can get value 1.4

Example 3: Convert to string

TVector2 a(1,3);
ToString(a);          // shows the string "(1,3)"
vector<int> b{3,5,7,9,2};
cout << any(b) << endl;   // prints the content of b in string: "{3,5,7,9,2}"

Definition at line 286 of file TRestReflector.h.

Public Member Functions
void	Assembly ()
	Assembly a new object, and save its address. The old object will be destroied if not null.
void	Destroy () const
	Destroy the current object. It will make the class to be zombie.
TRestReflector	GetDataMember (const std::string &name)
	Find the class's datamember as TRestReflector object, including those from base class.
TRestReflector	GetDataMember (int ID)
	Get the i-th datamember of the class, ignoring those from base class.
std::string	GetDataMemberValueString (const std::string &name)
	Get the value of datamember as std::string.
std::vector< std::string >	GetListOfDataMembers () const
	Get a list of the class's datamembers as a std::vector of std::string, including those from base class.
int	GetNumberOfDataMembers () const
	Get the number of data members of a class.
template<typename T >
T	GetValue ()
	Get the value of the wrapped type, not recommended to use.
template<class T >
void	InitFromTemplate ()
bool	IsZombie () const
	If this object type wrapper is invalid.
template<class T >
	operator T* ()
void	operator>> (const TRestReflector &to)
	Deep copy the content of the wrapped object to to.
void	ParseString (const std::string &str) const
	Set the value of the wrapped object from std::string.
void	PrintMemory (int bytepreline=16)
	Print the Hex memory std::map of the wrappered object.
template<class T >
void	SetValue (const T &val)
	Set the value of the wrapped type.
std::string	ToString () const
	Convert the wrapped object to std::string.
	TRestReflector ()
	Default constructor.
template<class T >
	TRestReflector (const T &obj)
	Constructor to wrap an object. Any typed object can be revieved as argument.
template<class T >
	TRestReflector (T *obj)
	Constructor to wrap an object pointer.
	TRestReflector (void *address, const std::string &type)
	Constructor from a certain address and a certain type.

Data Fields
char *	address = 0
	Address of the wrapped object.
TClass *	cl = 0
	Pointer to the corresponding TClass helper, if the wrapped object is in class type.
bool	is_data_type = false
	Pointer to the corresponding TDataType helper, if the wrapped object is in data type.
std::string	name = ""
	Name field.
int	size = 0
	Size of the object.
std::string	type = ""
	Type of the wrapped object.
const std::type_info *	typeinfo = 0
	value of typeid(T).name() of the wrapped object

Private Member Functions
int	InitDictionary ()
	Prepare the ROOT dictionary for this type.

Private Attributes
bool	onheap = false
	If on heap, we can call Destroy() to TRestReflector. True only when initialized from Assembly()

Friends
std::ostream &	operator<< (std::ostream &cin, TRestReflector ptr)
	Output overload by calling ToString();.

Member Function Documentation

operator T*()

template<class T >

REST_Reflection::TRestReflector::operator T* ( )

inline

Type conversion operator. With this, one can implicitly convert TRestReflector object to pointer of certain type. For example, TRestEvent* eve = REST_Reflection::Assembly("TRestRawSignalEvent");

Definition at line 360 of file TRestReflector.h.

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

• TRestReflector.h
• TRestReflector.cxx