不能通過斯威夫特嵌套類作爲AnyClass參數

Question

當我嘗試通過斯威夫特嵌套類的功能期待AnyClass參數我獲得以下編譯器錯誤：

Expected member name or constructor call after type name

有沒有一種辦法可以解決上面的錯誤，並通過嵌套類作爲參數？

func getInfo(type: AnyClass) -> UInt32 
{ 
    var outPropCount: UInt32 = 0 

    let properties: UnsafeMutablePointer<objc_property_t> = class_copyPropertyList(type, &outPropCount); 

    free(properties) 
    return outPropCount 
} 

public class Outer: NSObject 
{ 
    public class Data: NSObject 
    { 
     public var groups: [Int] = [] 
    } 
} 

public class Data: NSObject 
{ 
    public var groups: [Int] = [] 
} 


let o = getInfo(Outer) // works 

let d = getInfo(Data) // works 

let i = getInfo(Outer.Data) // fails to compile 

Answer 1

解決方案是使用.self訪問類型

let i = getInfo(Outer.Data.self)