如何在switch语句中使用Swift keyPaths

Question

[XCode 8.3-Swift 3.2-Mac OS X 10.11]

我想在我的switch语句中删除冗余和重复的代码。我已经阅读了有关Swift keyPath的文章，但我不明白如何将它们应用于switch语句。我想恢复此代码：

let realm = try! Realm()
let patient = realm.object(ofType: Patient.self, forPrimaryKey: superPatient.data.UUID)
try! realm.write {

    switch Type {
    case .inicialExtraoralFrontalReposo:
        patient?.inicialExtraoralFrontalReposo = String(describing: destURL)
    case .inicialExtraoralFrontalSonrisa:
        patient?.inicialExtraoralFrontalSonrisa = String(describing: destURL)
    case .inicialExtraoralPerfilReposo:
        patient?.inicialExtraoralPerfilReposo = String(describing: destURL)
    case .inicialExtraoralPerfilSonrisa:
        patient?.inicialExtraoralPerfilReposo = String(describing: destURL)
    case .inicialExtraoralTrescuartosReposo:
        patient?.inicialExtraoralTrescuartosReposo = String(describing: destURL)
    case .inicialExtraoralTrescuartosSonrisa:
        patient?.inicialExtraoralTrescuartosSonrisa = String(describing: destURL)
    case ...
         ...
         ...
    default
        break
    }
}

无论如何，有没有像...这样的表达式来恢复该代码：

patient?.{Type} = String(describing: destURL)

？

类型枚举与我要保存的患者属性相同。