SG::BaseInfo< T > Class Template Reference

Provide an interface for finding inheritance information at run time. More...

#include <BaseInfo.h>

Collaboration diagram for SG::BaseInfo< T >:

Static Public Member Functions
static void *	cast (T *p, CLID clid)
	Cast to a base pointer.
static void *	cast (T *p, const std::type_info &tinfo)
	Cast to a base pointer.
static T *	castTo (void *p, CLID clid)
	Cast to a derived pointer.
static T *	castTo (void *p, const std::type_info &tinfo)
	Cast to a derived pointer.
static BaseInfoBase::castfn_t *	castfn (CLID clid)
	Return a function for casting to a base pointer.
static BaseInfoBase::castfn_t *	castfn (const std::type_info &tinfo)
	Return a function for casting to a base pointer.
static BaseInfoBase::castfn_t *	castfnTo (CLID clid)
	Return a function for casting to a derived pointer.
static BaseInfoBase::castfn_t *	castfnTo (const std::type_info &tinfo)
	Return a function for casting to a derived pointer.
static const std::vector< CLID > &	get_bases ()
	Return the class IDs of all known bases of T (that have class IDs).
static std::vector< const std::type_info * >	get_ti_bases ()
	Return the type_info's of all known bases of T.
static bool	is_base (CLID clid)
	Return true if clid is the ID of a class that is known to be a base of T.
static bool	is_base (const std::type_info &tinfo)
	Return true if tinfo is the std::type_info of a class that is known to be a base of T.
static bool	is_virtual (CLID clid)
	Return true if clid is the ID of a class that is known to be a virtual base of T.
static bool	is_virtual (const std::type_info &tinfo)
	Return true if tinfo is the std::type_info of a class that is known to be a virtual base of T.
static const BaseInfoBase &	baseinfo ()
	Return the non-templated BaseInfoBase object for this type.
static void	maybeInit ()

Static Private Member Functions
static BaseInfoImpl< T > &	instance ()
	Return a reference to the (singleton) implementation object for this class.

Static Private Attributes
static BaseInfoImpl< T > s_instance	ATLAS_THREAD_SAFE

Friends
template<class D, class B>
struct	RegisterAddCopyConversionInit
template<class D, class B>
struct	RegisterAddBaseInit

Detailed Description

template<class T>
class SG::BaseInfo< T >

Provide an interface for finding inheritance information at run time.

See the file comments for full details.

Definition at line 750 of file Control/AthenaKernel/AthenaKernel/BaseInfo.h.

Member Function Documentation

baseinfo()

template<class T>

const BaseInfoBase & SG::BaseInfo< T >::baseinfo ( )

static

Return the non-templated BaseInfoBase object for this type.

cast() [1/2]

template<class T>

void * SG::BaseInfo< T >::cast ( T * p, CLID clid )

static

Cast to a base pointer.

Parameters

p	The pointer to cast.
clid	ID of the class to which to cast.

Returns

The pointer cast to the requested type, returned as a void*. clid must be known to be a base of T; otherwise, 0 will be returned.

cast() [2/2]

template<class T>

void * SG::BaseInfo< T >::cast ( T * p, const std::type_info & tinfo )

static

Cast to a base pointer.

Parameters

p	The pointer to cast.
clid	type_info of the class to which to cast.

Returns

The pointer cast to the requested type, returned as a void*. tinfo must be known to be a base of T; otherwise, 0 will be returned.

castfn() [1/2]

template<class T>

BaseInfoBase::castfn_t * SG::BaseInfo< T >::castfn ( CLID clid )

static

Return a function for casting to a base pointer.

Parameters

clid	ID of the class to which to cast.

Returns

A function to convert a pointer to a T to a pointer to the type identified by clid. clid must be known to be a base of T; otherwise, 0 will be returned.

castfn() [2/2]

template<class T>

BaseInfoBase::castfn_t * SG::BaseInfo< T >::castfn ( const std::type_info & tinfo )

static

Return a function for casting to a base pointer.

Parameters

clid	type_info of the class to which to cast.

Returns

A function to convert a pointer to a T to a pointer to the type identified by tinfo. tinfo must be known to be a base of T; otherwise, 0 will be returned.

castfnTo() [1/2]

template<class T>

BaseInfoBase::castfn_t * SG::BaseInfo< T >::castfnTo ( CLID clid )

static

Return a function for casting to a derived pointer.

Parameters

clid	ID of the class B from which to cast.

Returns

A function to convert a pointer to a T to a pointer to a T. clid must be known to be a base of T; otherwise, 0 will be returned. 0 will also be returned if the dynamic_cast fails.

castfnTo() [2/2]

template<class T>

BaseInfoBase::castfn_t * SG::BaseInfo< T >::castfnTo ( const std::type_info & tinfo )

static

Return a function for casting to a derived pointer.

Parameters

clid	type_info of the class B from which to cast.

Returns

A function to convert a pointer to a B to a pointer to a T. tinfo must be known to be a base of T; otherwise, 0 will be returned. 0 will also be returned if the dynamic_cast fails.

castTo() [1/2]

template<class T>

T * SG::BaseInfo< T >::castTo ( void * p, CLID clid )

static

Cast to a derived pointer.

Parameters

p	The pointer to cast.
clid	ID of the class B from which to cast.

Returns

The pointer cast to a T*. B must be known to be a base of T; otherwise, 0 will be returned. 0 will also be returned if the dynamic_cast fails.

castTo() [2/2]

template<class T>

T * SG::BaseInfo< T >::castTo ( void * p, const std::type_info & tinfo )

static

Cast to a derived pointer.

Parameters

p	The pointer to cast.
clid	type_info of the class B from which to cast.

Returns

The pointer cast to a T*. B must be known to be a base of T; otherwise, 0 will be returned. 0 will also be returned if the dynamic_cast fails.

get_bases()

template<class T>

const std::vector< CLID > & SG::BaseInfo< T >::get_bases ( )

static

Return the class IDs of all known bases of T (that have class IDs).

The list will include T itself.

get_ti_bases()

template<class T>

std::vector< const std::type_info * > SG::BaseInfo< T >::get_ti_bases ( )

static

Return the type_info's of all known bases of T.

The list will include T itself.

instance()

template<class T>

BaseInfoImpl< T > & SG::BaseInfo< T >::instance ( )

staticprivate

Return a reference to the (singleton) implementation object for this class.

is_base() [1/2]

template<class T>

bool SG::BaseInfo< T >::is_base ( CLID clid )

static

Return true if clid is the ID of a class that is known to be a base of T.

T is considered to be its own base for this purpose.

Parameters

clid	The ID of the class to test.

is_base() [2/2]

template<class T>

bool SG::BaseInfo< T >::is_base ( const std::type_info & tinfo )

static

Return true if tinfo is the std::type_info of a class that is known to be a base of T.

T is considered to be its own base for this purpose.

Parameters

tinfo

The std::type_info of the class to test.

is_virtual() [1/2]

template<class T>

bool SG::BaseInfo< T >::is_virtual ( CLID clid )

static

Return true if clid is the ID of a class that is known to be a virtual base of T.

(This will always be false for T itself.)

Parameters

clid	The ID of the class to test.

is_virtual() [2/2]

template<class T>

bool SG::BaseInfo< T >::is_virtual ( const std::type_info & tinfo )

static

Return true if tinfo is the std::type_info of a class that is known to be a virtual base of T.

(This will always be false for T itself.)

Parameters

tinfo

The std::type_info of the class to test.

maybeInit()

template<class T>

void SG::BaseInfo< T >::maybeInit ( )

static

Friends And Related Symbol Documentation

RegisterAddBaseInit

template<class T>

template<class D, class B>

friend struct RegisterAddBaseInit

friend

Definition at line 756 of file Control/AthenaKernel/AthenaKernel/BaseInfo.h.

RegisterAddCopyConversionInit

template<class T>

template<class D, class B>

friend struct RegisterAddCopyConversionInit

friend

Definition at line 754 of file Control/AthenaKernel/AthenaKernel/BaseInfo.h.

Member Data Documentation

ATLAS_THREAD_SAFE

template<class T>

BaseInfoImpl<T> s_instance SG::BaseInfo< T >::ATLAS_THREAD_SAFE

staticprivate

Definition at line 909 of file Control/AthenaKernel/AthenaKernel/BaseInfo.h.

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

• Control/AthenaKernel/AthenaKernel/BaseInfo.h