# File lib/dbi/typeutil.rb, line 48
        def self.convert(driver_name, obj)
            if @@conversions[driver_name]
                newobj, cascade = @@conversions[driver_name].call(obj)
                if cascade
                    return @@conversions["default"].call(newobj)
                end
                return newobj
            end

            return @@conversions["default"].call(obj)
        end