module RKelly::Visitable
Public Class Methods
included(klass)
click to toggle source
# File lib/rkelly/visitable.rb, line 17 def self.included(klass) klass.extend(ClassMethods) end
Public Instance Methods
accept(visitor, &block)
click to toggle source
Based off the visitor pattern from RubyGarden
# File lib/rkelly/visitable.rb, line 23 def accept(visitor, &block) klass, meth = self.class.visitor_method_names_by_ancestors.find do |meth| return visitor.send(meth, self, &block) if visitor.respond_to?(meth) end raise "No visitor for '#{self.class}'" end