xcode - Bool 不是 ObjCBool​​ 的子类型 - swift 2 beta 5

Question

刚刚升级到最新的测试版，我收到此错误:

有什么想法吗？

代码是:

func testFileStatusNotifications() {

    let x : XCNotificationExpectationHandler = { (n : NSNotification!) -> Bool in

        // Extract userInfo
        let u = n.userInfo!

        let dict = u.values.first as! [String : Double]
        let percent = dict["percent"]!

        return (percent > 10)
    }

看来处理程序类型必须已更改:

typealias XCNotificationExpectationHandler = (NSNotification) -> ObjCBool

因为它现在的类型是ObjCBool​​

Answer 1

func testFileStatusNotifications() {

    let x : XCNotificationExpectationHandler = { (n : NSNotification!) -> ObjCBool in

        // Extract userInfo
        let u = n.userInfo!
        let dict = u.values.first as! [String : Double]
        let percent = dict["percent"]!

        let ret =  (percent > 10)
        return ObjCBool(ret)
    }

这似乎解决了问题。