    # File lib/yard/templates/helpers/html_helper.rb, line 399
          def signature_types(meth, link = true)
            meth = convert_method_to_overload(meth)
            if meth.respond_to?(:object) && !meth.has_tag?(:return)
              meth = meth.object
            end

            type = options[:default_return] || ""
            if meth.tag(:return) && meth.tag(:return).types
              types = meth.tags(:return).map {|t| t.types ? t.types : [] }.flatten.uniq
              first = link ? h(types.first) : format_types([types.first], false)
              if types.size == 2 && types.last == 'nil'
                type = first + '<sup>?</sup>'
              elsif types.size == 2 && types.last =~ /^(Array)?<#{Regexp.quote types.first}>$/
                type = first + '<sup>+</sup>'
              elsif types.size > 2
                type = [first, '...'].join(', ')
              elsif types == ['void'] && options[:hide_void_return]
                type = ""
              else
                type = link ? h(types.join(", ")) : format_types(types, false)
              end
            elsif !type.empty?
              type = link ? h(type) : format_types([type], false)
            end
            type = "(#{type}) " unless type.empty?
            type
          end