whiteboard/visitor.hpp File Reference

Two classes are presented in this file: enable_visit_all and visitor. More...

#include "action.hpp"
#include "side_actions.hpp"
#include "foreach.hpp"
#include "play_controller.hpp"
#include "resources.hpp"
#include <boost/noncopyable.hpp>

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Classes
class	wb::enable_visit_all< Derived >
	enable_visit_all: A base class template, using the so-called CRTP. More...
class	wb::visitor
	visitor: This is the "dynamic polymorphism" part. More...
struct	wb::visitor::visitor_helper
Namespaces
namespace	wb

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Detailed Description

Two classes are presented in this file: enable_visit_all and visitor.

enable_visit_all is a class template that provides the all-too-common iteration code that iterates over every planned action from every team, starting with the current-turn team. Using "static polymorphism," derived classes can customize the iteration by overriding some functions. visitor is an abstract interface that simply provides derived classes with the mechanism for the double dispatch used in the Visitor Pattern: action.accept(visitor) calls visitor.visit_***(action) Derived classes will usually derive from both of these. Example usage is seen is highlight_visitor and mapbuilder.

Definition in file visitor.hpp.