dianqk

import UIKit

extension SequenceType {
    /// flatMap 出我们需要的类型
    ///
    /// - Complexity: O(*M* + *N*), where *M* is the length of `self`
    ///   and *N* is the length of the result.
    @warn_unused_result
    public func flatMap<T>(type type: T.Type) -> [T] {
        return flatMap { $0 as? T }

dianqk

struct Phone {
    var number: String?
    var originalLabel: String?
    
    init(number: String? = nil, originalLabel: String? = nil) {
        self.number = number
        self.originalLabel = originalLabel
    }
}

dianqk

enum Result<T> {
    case Success(T)
    case Failure(ErrorType)
}

extension Result {
    
    static func unit(x: T) -> Result<T> {
        return .Success(x)
    }

dianqk

import UIKit

func recurisiveSearchParentViewUntil<T: UIView>(type: T.Type, currentView: UIView) -> T? {
    switch currentView {
    case let view as T:
        return view // 当前 view 满足则返回 view
    case let view where view.superview != nil:
        return recurisiveSearchParentViewUntil(type, currentView: view.superview!)
    default:
        return nil

dianqk

let CampusNetworkProvider = MoyaProvider<CampusNetwork>(endpointClosure: MoyaProvider.DefaultEndpointMapping,
    requestClosure: requestClosure,
    stubClosure: MoyaProvider.NeverStub,
    manager: MoyaProvider<CampusNetwork>.DefaultAlamofireManager(),
    plugins: [NetworkLoggerPlugin()])