我有多个具有相同功能名称的协议。有些协议有关联的类型,我不知道如何像在非泛型协议中那样调用函数。我得到错误:Protocol 'MyProtocol1' can only be used as a generic contraint because it has Self or associated type requirements
这是我正在尝试做的事情:
protocol Serviceable {
associatedtype DataType
func get(handler: ([DataType] -> Void)?)
}
struct PostService: Serviceable {
func get(handler: ([String] -> Void)? = nil) {
print("Do something...")
}
}
protocol MyProtocol1: class {
associatedtype ServiceType: Serviceable
var service: ServiceType { get }
}
extension MyProtocol1 {
func didLoad(delegate: Self) {
print("MyProtocol1.didLoad()")
}
}
protocol MyProtocol2: class {
}
extension MyProtocol2 {
func didLoad(delegate: MyProtocol2) {
print("MyProtocol2.didLoad()")
}
}
class MyViewController: UIViewController, MyProtocol1, MyProtocol2 {
let service = PostService()
override func viewDidLoad() {
super.viewDidLoad()
didLoad(self as MyProtocol1) // Error here: Protocol 'MyProtocol1' can only be used as a generic contraint because it has Self or associated type requirements
didLoad(self as MyProtocol2)
}
}
如何从通用协议扩展中专门调用该函数?