Golang: parsing list from the interface

listFromInterface.go

func listFromInterface(x interface{})([]interface{}, error) {
	s := reflect.ValueOf(x);
	fmt.Println(s)
	if valueType := s.Kind(); valueType != reflect.Slice && valueType != reflect.Array && valueType != reflect.String {
		return nil, fmt.Errorf("Given a non-list type");
	}
	pe := make([]interface{}, s.Len())

	for i := 0; i < s.Len(); i++ {
		pe[i] = s.Index(i).Interface()
	}

	return pe, nil
}