Class MetaInfo contains objects meta-information. More...

#include <pointer.h>

Public Member Functions
	MetaInfo ()
	Default constructor.
	MetaInfo (const std::string &type_name, size_t size, const std::type_info type_info, const std::type_info base_info, ConstructorFunction constructor_function, CopyFunction copy_function, CastFunction cast_function, DestructorFunction destructor_function)
	Constructs a meta info from essential parameters.
	~MetaInfo ()
	Destructor unregisters the meta info object.
	MetaInfo (const MetaInfo &meta_info)
	Copy constructor.
void	invalidate ()
	Invalidates the data.
bool	is_valid () const
	Returns true if the MetaInfo object is valid.
void	create (void *object)
	Applies the constructor.
bool	copy (const void rvalue, void lvalue) const
	Applies the copy operator.
void	destructor (void *object)
	Applies the destructor.
bool	cast (const void *object) const
	Applies the cast function.
bool	has_constructor () const
	Returns true if the meta info has a constructor.
bool	has_destructor () const
	Returns true if the meta info has a destructor.
bool	can_cast () const
	Returns true if the meta info can cast.
bool	can_copy () const
	Returns true if the meta info can copy.
bool	in_hierarchy (const MetaInfo *object) const
	Returns true if the object is in the same object hierarchy as the current meta info.
Data Fields
std::string	type_name
	Real type name.
std::string	type_id
	Mangled type name.
size_t	size
	Size of an object instance.
const std::type_info *	type_info
	Type info.
const std::type_info *	base_info
	Base type info.
std::string	library_name
	Library name.
Protected Attributes
ConstructorFunction	constructor_function
	Constructor operator.
CopyFunction	copy_function
	Copy operator.
CastFunction	cast_function
	Type cast to this object.
DestructorFunction	destructor_function
	Destructor function.
Friends
class	ObjectFactory

Detailed Description

Class MetaInfo contains objects meta-information.

Constructor & Destructor Documentation

crp::MetaInfo::MetaInfo ( ) [inline]

Default constructor.

crp::MetaInfo::MetaInfo	(	const std::string &	type_name,
		size_t	size,
		const std::type_info *	type_info,
		const std::type_info *	base_info,
		ConstructorFunction	constructor_function,
		CopyFunction	copy_function,
		CastFunction	cast_function,
		DestructorFunction	destructor_function
	)

Constructs a meta info from essential parameters.

Do not create instances of this class!

There is never the need for the ContRap user to do so.

Parameters:

type_name	Real name of the type
type_info	Type info object of the class
base_info	Type info object of the base class
constructor_function	Constructor function
copy_function	Copy function
cast_function	Cast function
destructor_function	Destructor function

crp::MetaInfo::~MetaInfo ( )

Destructor unregisters the meta info object.

crp::MetaInfo::MetaInfo ( const MetaInfo & meta_info ) [inline]

Copy constructor.

Parameters:

meta_info Other meta info instance

Member Function Documentation

bool crp::MetaInfo::can_cast ( ) const [inline]

Returns true if the meta info can cast.

Returns:: True if the meta info can cast

bool crp::MetaInfo::can_copy ( ) const [inline]

Returns true if the meta info can copy.

Returns:: True if the meta info can copy

bool crp::MetaInfo::cast ( const void * object ) const [inline]

Applies the cast function.

Parameters:

object Object to cast to the given type

Returns:: True if pointer cast is possible

bool crp::MetaInfo::copy	(	const void *	rvalue,
		void *	lvalue
	)		const `[inline]`

Applies the copy operator.

Parameters:

rvalue	Value which is assigned
lvalue	Value which is overwritten

Returns:: True if assign was successful

void crp::MetaInfo::create ( void * object ) [inline]

Applies the constructor.

Parameters:

Pointer to the object on which should be created

void crp::MetaInfo::destructor ( void * object ) [inline]

Applies the destructor.

Parameters:

Pointer to the object on which delete is called

bool crp::MetaInfo::has_constructor ( ) const [inline]

Returns true if the meta info has a constructor.

Returns:: True if the meta info has a valid constructor

bool crp::MetaInfo::has_destructor ( ) const [inline]

Returns true if the meta info has a destructor.

Returns:: True if the meta info has a valid destructor

bool crp::MetaInfo::in_hierarchy ( const MetaInfo * object ) const [inline]

Returns true if the object is in the same object hierarchy as the current meta info.

If this method returns true, you can call the cast function.

Parameters:

object Different object

void crp::MetaInfo::invalidate ( ) [inline]

Invalidates the data.

bool crp::MetaInfo::is_valid ( ) const [inline]

Returns true if the MetaInfo object is valid.

A meta info object is valid, if it has valid type information. Check the ability of a MetaInfo object to cast, destroy, etc. with corresponding methods.