Standard_Type.hxx File Reference

#include <Standard.hxx>
#include <Standard_Handle.hxx>
#include <Standard_Transient.hxx>
#include <Standard_OStream.hxx>
#include <typeinfo>

Data Structures
class	Standard_Type
	This class provides legacy interface (type descriptor) to run-time type information (RTTI) for OCCT classes inheriting from Standard_Transient. More...
class	opencascade::type_instance< T >
	Template class providing instantiation of type descriptors as singletons. The descriptors are defined as static variables in function get(), which is essential to ensure that they are initialized in correct sequence. More...
class	opencascade::type_instance< void >
	Specialization of type descriptor instance for void; returns null handle. More...

Namespaces
	opencascade
	Namespace opencascade is intended for low-level template classes and functions.

Macros
#define	OCCT_CHECK_BASE_CLASS(Class, Base)    static_assert(opencascade::is_base_but_not_same<Base, Class>::value, "OCCT RTTI definition is incorrect: " #Base " is not base class of " #Class);
#define	STANDARD_TYPE(theType)   theType::get_type_descriptor()
	Helper macro to get instance of a type descriptor for a class in a legacy way. More...
#define	DEFINE_STANDARD_RTTI_INLINE(Class, Base)
	Helper macro to be included in definition of the classes inheriting Standard_Transient to enable use of OCCT RTTI. More...
#define	DEFINE_STANDARD_RTTIEXT(Class, Base)
	Helper macro to be included in definition of the classes inheriting Standard_Transient to enable use of OCCT RTTI. More...
#define	IMPLEMENT_STANDARD_RTTIEXT(Class, Base)
	Defines implementation of type descriptor and DynamicType() function. More...

Functions
Standard_OStream &	operator<< (Standard_OStream &theStream, const Handle< Standard_Type > &theType)
	Operator printing type descriptor to stream. More...

Macro Definition Documentation

DEFINE_STANDARD_RTTI_INLINE

#define DEFINE_STANDARD_RTTI_INLINE	(		Class,
			Base
	)

Value:

public: \
  typedef Base base_type; \
  static const char* get_type_name () { return #Class; OCCT_CHECK_BASE_CLASS(Class,Base) } \
  static const Handle(Standard_Type)& get_type_descriptor () { return Standard_Type::Instance<Class>(); } \
  virtual const Handle(Standard_Type)& DynamicType() const Standard_OVERRIDE { return get_type_descriptor (); }

Helper macro to be included in definition of the classes inheriting Standard_Transient to enable use of OCCT RTTI.

Inline version, does not require IMPLEMENT_STANDARD_RTTIEXT, but when used for big hierarchies of classes may cause considerable increase of size of binaries.

DEFINE_STANDARD_RTTIEXT

#define DEFINE_STANDARD_RTTIEXT	(		Class,
			Base
	)

Value:

public: \
  typedef Base base_type; \
  static const char* get_type_name () { return #Class; OCCT_CHECK_BASE_CLASS(Class,Base) } \
  Standard_EXPORT static const Handle(Standard_Type)& get_type_descriptor (); \
  Standard_EXPORT virtual const Handle(Standard_Type)& DynamicType() const Standard_OVERRIDE;

Helper macro to be included in definition of the classes inheriting Standard_Transient to enable use of OCCT RTTI.

Out-of-line version, requires IMPLEMENT_STANDARD_RTTIEXT.

IMPLEMENT_STANDARD_RTTIEXT

#define IMPLEMENT_STANDARD_RTTIEXT	(		Class,
			Base
	)

Value:

  const Handle(Standard_Type)& Class::get_type_descriptor () { return Standard_Type::Instance<Class>(); } \
  const Handle(Standard_Type)& Class::DynamicType() const { return STANDARD_TYPE(Class); }

Defines implementation of type descriptor and DynamicType() function.

OCCT_CHECK_BASE_CLASS

#define OCCT_CHECK_BASE_CLASS	(		Class,
			Base
	)		static_assert(opencascade::is_base_but_not_same<Base, Class>::value, "OCCT RTTI definition is incorrect: " #Base " is not base class of " #Class);

STANDARD_TYPE

#define STANDARD_TYPE

(

theType

)

theType::get_type_descriptor()

Helper macro to get instance of a type descriptor for a class in a legacy way.

Function Documentation

operator<<()

Standard_OStream& operator<< ( Standard_OStream &  theStream, const Handle< Standard_Type > &  theType  )

inline

Operator printing type descriptor to stream.