# File lib/multimethod/parameter.rb, line 213
    def type_object
      unless @type_object
        case @type
        when String
          @type_object = Table.instance.name_to_object(@type, 
                                                       @signature && @signature.mod, 
                                                       @signature && @signature.file, 
                                                       @signature && @signature.line)
        when Module
          @type_object = @type
        when NilClass
          @type_object = Kernel
        else
          raise("Incorrect parameter type #{@type.inspect}")
        end
      end
      @type_object
    end