最近,我将代码重构为基本的coapapod,以用于多个项目。其中一个类是Alamofire的一个非常典型的路由枚举。它一直工作良好,直到被转移到cocoapod中为止。一个示例实现:
public enum Router: URLRequestConvertible {
static var baseURLString = "http://myserver.com/api"
case Endpoint1(String, String)
case Endpoint2(String, String, Date, Date)
case Endpoint3(String, String)
public var URLRequest: NSMutableURLRequest {
var path : String! {
switch self {
case .Endpoint1(let id, _):
return "/endpoint1/" + id
case .Endpoint2(let id, _, _, _):
return "/booking/\(id)/thing"
case .Endpoint3(_, _):
return "/authenticate"
}
}
var parameters: [String: AnyObject] {
switch self {
case .Endpoint2(_, _, let startDate, let endDate):
let params = ["startDate": startDate, "endDate" : endDate]
return params
default:
let params = [String: AnyObject]()
return params
}
}
var method : Alamofire.Method {
switch self {
case .Endpoint2:
return .POST
default:
return .GET
}
}
var body : [String : AnyObject]?{
switch self{
case .Endpoint3(let email, let password):
return ["email" : "\(email)", "password" : "\(password)"]
default:
return nil
}
}
var header : [String: String]?{
switch self {
case .Endpoint1(_, let token):
return ["x-access-token" : token]
default:
return nil
}
}
let URL = NSURL(string: Router.baseURLString)?.URLByAppendingPathComponent(path)
let request = NSURLRequest(URL: URL!)
let encoding = Alamofire.ParameterEncoding.URL
let mutable = (encoding.encode(request, parameters: parameters).0)
mutable.HTTPMethod = method.rawValue
if let bodyParams = body{
mutable.setValue("application/json", forHTTPHeaderField: "Content-Type")
mutable.addJsonArrayToRequestBody(bodyParams)
}
if let headerParams = header{
for param in headerParams{
mutable.setValue(param.1, forHTTPHeaderField: param.0)
}
}
return mutable
}
}
失败行是:
for param in headerParams{
但是正如在开发过程中一样,我无法在这一点上附加调试器,错误也不会超过EXEC_BAD_INSTRUCTION,这没有什么用。如何进一步调试导致错误的原因?
最佳答案
使用开发cocoapod时,这是xcode调试器中的错误,实际错误是:
让URL = NSURL(string:Router.baseURLString)?. URLByAppendingPathComponent(path)
调用此方法时,尚未设置静态baseURLString,导致URL为nil。在现在共享的代码中,我看到调试器多次出现,指出错误的行,不确定如何解决。