Reflection은 Go에서 구조체 속성에 대한 동적 액세스를 어떻게 향상시킬 수 있나요?

type SshConfig struct {
    Host string
    Port string
    User string
    LocalForward string
    ...
}

if split[0] == "Port" {
    sshConfig.Port = strings.Join(split[1:], " ")
}

// setField sets a field of a struct by name with a given value.
func setField(v interface{}, name, value string) error {
    // Validate input
    rv := reflect.ValueOf(v)
    if rv.Kind() != reflect.Ptr || rv.Elem().Kind() != reflect.Struct {
        return fmt.Errorf("v must be pointer to struct")
    }

    fv := rv.Elem().FieldByName(name)
    if !fv.IsValid() {
        return fmt.Errorf("not a field name: %s", name)
    }
    if !fv.CanSet() {
        return fmt.Errorf("cannot set field %s", name)
    }
    if fv.Kind() != reflect.String {
        return fmt.Errorf("%s is not a string field", name)
    }

    // Set the value
    fv.SetString(value)
    return nil
}

var config SshConfig

...

err := setField(&config, split[0], strings.Join(split[1:], " "))
if err != nil {
    // Handle error
}