# File lib/main/parameter.rb, line 492
      def defaults!
        each do |p|
          if(p.defaults? and (not p.given?)) 
            p.defaults.each do |default|
              p.values << (default.respond_to?('to_proc') ? main.instance_eval(&default) : default) # so as NOT to set 'given?'
            end
          end
        end
      end