DerivedNode.hpp File Reference

#include <type_traits>
#include "uhal/Node.hpp"
#include "uhal/TemplateDefinitions/DerivedNode.hxx"

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Classes
struct	uhal::RegistrationHelper< T >
	Experimental!! Helper struct for adding the DerivedNode to the Node Factory Declaring an instance of an object at global scope means that it is created before the main code is entered We can use this to our advantage by using the constructor of this object to add entries to the factory in a distributed fashion (for instance, in the file where the derived node is defined), rather than manually having to add entries in one file To make things even simpler, the REGISTER macro expands the template argument to a string and passes it to the constructor. More...

Namespaces
namespace	uhal

Macros
#define	UHAL_REGISTER_DERIVED_NODE(classname)
	Macro which adds a Derived Node Class to the factory It takes a classname and then creates a registration helper object, with the classname as its template parameter and a stringified version of the classname as its constructor argument. More...
#define	UHAL_DERIVEDNODE(DerivedType)
	Macro which adds the clone method implementation for derived classes. More...

Detailed Description

Author

Andrew W. Rose

Date

2012

Definition in file DerivedNode.hpp.

Macro Definition Documentation

UHAL_DERIVEDNODE

#define UHAL_DERIVEDNODE

(

DerivedType

)

Value:

protected: \
  virtual uhal::Node* clone() const;

Macro which adds the clone method implementation for derived classes.

Definition at line 63 of file DerivedNode.hpp.

UHAL_REGISTER_DERIVED_NODE

#define UHAL_REGISTER_DERIVED_NODE

(

classname

)

Value:

  uhal::RegistrationHelper< classname > classname##RegistrationHelper( #classname ); \
  uhal::Node* classname::clone() const \
  { \
    static_assert((std::is_base_of<uhal::Node, classname>::value), "Derived node class must be a descendant of uhal::Node"); \
    return new classname ( static_cast<const classname&> ( *this ) ); \
  }

Macro which adds a Derived Node Class to the factory It takes a classname and then creates a registration helper object, with the classname as its template parameter and a stringified version of the classname as its constructor argument.

Definition at line 53 of file DerivedNode.hpp.