Contents

unless defined? $__fsm_dsl__
  $__fsm_dsl__ = __FILE__ 

  module FSM 
    FSM::LIBDIR =
      File::dirname(File::expand_path(__FILE__)) + File::SEPARATOR unless
        defined? FSM::LIBDIR

    FSM::INCDIR =
      File::dirname(FSM::LIBDIR) + File::SEPARATOR unless
        defined? FSM::INCDIR

    require INCDIR + 'fsm'

    class GenericDSL
      def initialize object
        @object = object
      end
      def method_missing m, *a, &b
        if @object.respond_to? m
          @object.send m, *a, &b
        else
          super
        end
      end
      def configure &b
        instance_eval &b
      end
    end

    class FSM
      class  DSL < GenericDSL
        def states *a
          @object.add_state *a
        end
        alias_method 'state', 'states'

        def transition *a, &b
          @object.add_transition *a, &b
        end
        alias_method 'transitioning', 'transition'
      end
    end

    class Observer
      class DSL < GenericDSL
      end
    end

    class System
      class DSL < GenericDSL
        def fsm &b
          b ? fsm.configure(&b) : @object.fsm
        end

        def observer &b
          b ? observer.configure(&b) : @object.observer
        end

        def method_missing m, *a, &b
          if fsm.respond_to? m
            fsm.send m, *a, &b
          else
            super
          end
        end
      end
    end

  end # module FSM
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
fsm-0.0.0	lib/fsm-0.0.0/dsl.rb