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visitor::SV< S, P > Class Template Reference

Subclass of Visitor for use as an abstract base class. More...

#include <vv2.h>

List of all members.

Public Methods
void	visit (ArgBase &ob)
	Performs the VirtualVisitor's action on the given object.
void	visit (ArgBase &ob)
	Performs the VirtualVisitor's action on the given object.
Protected Types
typedef P	Parent
	The parent of this SV.
typedef Parent::ArgBase	ArgBase
	The base class of the argument.
typedef S	ArgSub
	The subclass that the argument may or may not be.
typedef P	Parent
	The parent of this SV.
typedef S	ArgSub
	The subclass that the argument may or may not be.
typedef Parent::ArgBase	ArgBase
	The base class of ArgSub.
Protected Methods
void	try_visit (ArgBase &ob)
	If ob can be cast to ArgSub, call do_visit, otherwise try the parent.
virtual void	do_visit (ArgSub &ob)=0
	Do the action on objects of type SubType.
void	try_visit (ArgBase &ob)
	If ob can be cast to ArgSub, call do_visit, otherwise try this SV's parent.
virtual void	do_visit (ArgSub &ob)=0
	Add the requirement to define do_visit(ArgSub &).

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Detailed Description

template<typename S, typename P>
class visitor::SV< S, P >

Subclass of Visitor for use as an abstract base class.

Supplies an implementation of try_visit() and visit(), and adds the requirement to provide a do_visit<S>() in subclasses

Parameters:

S	The subclass of ArgBase to perform operations on
P	The parent class (either another SV or a Visitor)

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Member Typedef Documentation

template<typename S, typename P> typedef P visitor::SV< S, P >::Parent [protected]

The parent of this SV.

template<typename S, typename P> typedef Parent::ArgBase visitor::SV< S, P >::ArgBase [protected]

The base class of the argument.

template<typename S, typename P> typedef S visitor::SV< S, P >::ArgSub [protected]

The subclass that the argument may or may not be.

template<typename S, typename P> typedef P visitor::SV< S, P >::Parent [protected]

The parent of this SV.

template<typename S, typename P> typedef S visitor::SV< S, P >::ArgSub [protected]

The subclass that the argument may or may not be.

template<typename S, typename P> typedef Parent::ArgBase visitor::SV< S, P >::ArgBase [protected]

The base class of ArgSub.

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Member Function Documentation

template<typename S, typename P> void visitor::SV< S, P >::try_visit (  ArgBase &    ob )  [inline, protected]

If ob can be cast to ArgSub, call do_visit, otherwise try the parent. Parameters: ob  The object to try visiting { // We dynamically cast pointers because this is probably faster than // casting references ArgSub *s=dynamic_cast<ArgSub *>(&ob); if (s==NULL) Parent::try_visit(ob); else do_visit(*s); }

template<typename S, typename P> virtual void visitor::SV< S, P >::do_visit (  ArgSub &    ob )  [protected, pure virtual]

Do the action on objects of type SubType. Parameters: ob  The object to act on

template<typename S, typename P> void visitor::SV< S, P >::visit (  ArgBase &    ob )  [inline]

Performs the VirtualVisitor's action on the given object. Parameters: ob  The object to perform the VirtualVisitor's action on { try_visit(ob); }

template<typename S, typename P> void visitor::SV< S, P >::try_visit (  ArgBase &    ob )  [inline, protected]

If ob can be cast to ArgSub, call do_visit, otherwise try this SV's parent. Parameters: ob  The object to try visiting { // We dynamically cast pointers because this is probably faster than // casting references ArgSub *s=dynamic_cast<ArgSub *>(&ob); if (s==NULL) Parent::try_visit(ob); else do_visit(*s); }

template<typename S, typename P> virtual void visitor::SV< S, P >::do_visit (  ArgSub &    ob )  [protected, pure virtual]

Add the requirement to define do_visit(ArgSub &). Parameters: ob  The object to act on

template<typename S, typename P> void visitor::SV< S, P >::visit (  ArgBase &    ob )  [inline]

Performs the VirtualVisitor's action on the given object. Parameters: ob  The object to perform the VirtualVisitor's action on { try_visit(ob); }

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

• vv2.cpp
• vv2.h

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