add_method

# File lib/rdoc/ri/ri_writer.rb, line 41
    def add_method(class_desc, method_desc)
      dir = path_to_dir(class_desc.full_name)
      file_name = RiWriter.internal_to_external(method_desc.name)
      meth_file_name = File.join(dir, file_name)
      if method_desc.is_singleton
        meth_file_name += "-c.yaml"
      else
        meth_file_name += "-i.yaml"
      end

      File.open(meth_file_name, "w") do |f|
        f.write(method_desc.serialize)
      end
    end