Javascript 如何获取私有助手部分Xcode

我似乎无法使

私人助手

分隔符出现在

下拉列表中

有人知道这些问题吗？我使用的是Xcode 9.2

private class func MaleHaircuts() -> ProductLine {
    // (1) MALE HAIRCUT, FEMALE HAIRCUT
    var products = [Product]()
    products.append(Product(titled: "Afro", description: "BLANK", imageName: "male afro"))
    products.append(Product(titled: "Bald", description: "BLANK", imageName: "bald"))
    products.append(Product(titled: "Hair Fade", description: "BLANK", imageName: "hair-fade"))
    return ProductLine(named: "MaleHaircuts", includeProducts: products)
}

查看屏幕截图如下

---

它需要这样格式化

// MARK: - Private Helper Methods