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我正在做一些快速的Web服务。我正在使用alamofire。代码正在工作,但我认为它不“可读”(不是干净的代码)。你有一个想法,我可以优化这个?由于避免快速嵌套,如果让测试
static func checkBookValidity(serialNumber: String, callBack: Result<Bool?> ->()) {
let router = Router.CheckBookLuggage(serialNumber: serialNumber)
let request = Alamofire.request(router)
request.validate()
request.response { (request, response, data, error) in
if let error = error {
if error.code == NSURLErrorNotConnectedToInternet {
callBack(.Failure(.NoConnection))
}
else {
if let data = data {
do
{
if let json = try NSJSONSerialization.JSONObjectWithData(data, options: .AllowFragments) as? [String : AnyObject] {
let erroType = WSError.errorTypeWithJson(json, httpErroCode: error.code)
callBack(.Failure(erroType))
}
} catch {
callBack(.Failure(.ServerError))
}
}
else {
callBack(.Failure(.ServerError))
}
}
}
else {
if let data = data {
do
{
if let json = try NSJSONSerialization.JSONObjectWithData(data, options: .AllowFragments) as? [String : AnyObject] {
if let resultDic = json["result"] as? [String:AnyObject], let exists = resultDic["exists"] as? Bool {
if exists {
if let owner = resultDic["email"] as? String {
// ...
}
}
else {
callBack(.Success(false))
}
}
}
} catch {
callBack(.Failure(.ServerError))
}
}
}
}
}
查看['guard'语句](https://developer.apple.com/library/ios/documentation/Swift/Conceptual/Swift_Programming_Language/Statements.html#//apple_ref/doc/uid/TP40014097 -CH33-ID434);) – Hamish
您应该可以在http://codereview.stackexchange.com/上提出这个问题, – kye
谢谢,我知道警卫声明:)。你有一个想法,如果我可以使用卫兵梳理可选的绑定和调用功能, (当试图解析json并绑定“数据”时,请参阅我的示例) – samir