diff options
Diffstat (limited to 'datalogger/logger.go')
| -rw-r--r-- | datalogger/logger.go | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/datalogger/logger.go b/datalogger/logger.go index 1a4cd20..6236b59 100644 --- a/datalogger/logger.go +++ b/datalogger/logger.go @@ -66,19 +66,20 @@ func doCustomFormatting(value reflect.Value, tag reflect.StructTag) (string, err } formatMethodArgument, success := tag.Lookup("FormatterArgument") if !success { - return "", fmt.Errorf("Could not find the formatter name") + formatMethodArgument = "" } formatMethod := value.MethodByName(formatMethodName) if formatMethod == reflect.ValueOf(0) { return "", fmt.Errorf("Type %v does not support a method named %v", value.Type(), formatMethodName) } - - formatMethodArgumentUsable := make([]reflect.Value, 1) - formatMethodArgumentUsable[0] = reflect.ValueOf(formatMethodArgument) + var formatMethodArgumentUsable []reflect.Value = make([]reflect.Value, 0) + if formatMethodArgument != "" { + formatMethodArgumentUsable = append(formatMethodArgumentUsable, reflect.ValueOf(formatMethodArgument)) + } result := formatMethod.Call(formatMethodArgumentUsable) if len(result) == 1 { - return result[0].String(), nil + return fmt.Sprintf("%v", result[0]), nil } return "", fmt.Errorf("Too many results returned by the format method's invocation.") } |