Question

昨天我已将IOS Swift项目切换到新的XCode 6.3和Swift 1.2。到目前为止，我已经完成了很好的构建，但是有一次应用程序崩溃了错误消息＆＃34;致命错误：数组元素无法桥接到Objective-C＆＃34;在一行看起来像这样：

let services = services as! [ServiceObject]

我已经读过错误是因为我将Objective C对象作为Swift数组中的成员，现在不再自动桥接到NSArray，所以我必须要么使用ServiceObject类型的对象非Obj-C或者宣布＆＃34;服务＆＃34;作为NSArray。奇怪的是ServiceObject不是Objective-C对象。这是该类的声明：

class ServiceObject: MonitoringObject {
    let serviceDescription: String
    let host: HostObject

    var duration = 0
    var plugin_output = ""
    var active_checks_enabled = 0
    var display_name = ""
    var has_been_checked = 0
    var acknowledged = 0
    var acknowledgement_type = 0
    var scheduled_downtime_depth = 0
    var is_flapping = 0
    var state = ServiceState.OK


    var name: String {
        return serviceDescription
    }


    init(serviceDescription: String, host: HostObject) {
        self.host = host
        self.serviceDescription = serviceDescription
    }

    var durationText: String {
        if duration == -1 || duration == 0{
            return "N/A"
        } else if duration > 86400 {
            let days = Int(floor(Float(duration) / 86400))
            let hours = Int(floor(Float(duration % 86400) / 3600))
            return "\(days)d, \(hours)h"
        } else if duration > 3600 {
            let hours = Int(floor(Float(duration) / 3600))
            let minutes = Int(floor(Float(duration) % 3600 / 60))
            return "\(hours)h, \(minutes)m"
        } else if duration > 60 {
            let minutes = Int(floor(Float(duration) / 60))
            let seconds = duration % 60
            return "\(minutes)m, \(seconds)s"
        } else {
            return "\(duration)s"
            }
    }
}

此外，协议＆＃34; MonitoringObject＆＃34; ServiceObject符合的不是Obj-C：

protocol MonitoringObject {
    var name: String { get }
}

有没有人知道错误和崩溃的来源？

编辑：这是包含失败行的整个方法，以使上下文更清晰：

private func buildHostServicesIndex(services: [MonitoringObject]) -> [HostServicesEntry] {
    //typealias HostServicesEntry = (HostObject, [ServiceObject])
    let services = services as! [ServiceObject]
    let hosts = services.map {
        (service) -> HostObject in
        service.host
    }
    let distinctHosts = Helpers.distinct(hosts)

    return distinctHosts.map {
        (host) -> HostServicesEntry in
        return (host, services.filter {
            (service) -> Bool in
            service.host == host
        })
    }
}

迁移到Swift 1.2后，数组元素无法桥接到Objective-C

0 个答案: