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if section == 0 {
            return "Item(s) in your cart"
        } else if section == 1 {
            return String("Total tax")
        } else if section == 2{
            return String("Shipped to")
        } else if section == 3 {
            return String("Please select a payment method")
        }
        return nil

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import Foundation

class UserAddress {
    
    private var ID = Int32()
    private var stateID = Int32()
    private var eavObjectID = Int32()
    private var firstName = String()
    private var lastName = String()
    private var companyName = String()
    private var address = String()
    private var address2 = String()
    private var city = String()
    private var stateName = String()
    private var postalCode = String()
    private var countryID = String()
    private var phone = String()
    
    func setID(ID: Int32) { self.ID = ID }
    func setStateID(stateID: Int32) { self.stateID = stateID }
    func setEavObject(eavObjectID: Int32) { self.eavObjectID = eavObjectID }
    func setFirstName(firstName: String) { self.firstName = firstName }
    func setLastName(lastName: String) { self.lastName = lastName }
    func setCompanyName(companyName: String) { self.companyName = companyName }
    func setAddress(address: String) { self.address = address }
    func setAddressTwo(address2: String) { self.address2 = address2 }
    func setCity(city: String) { self.city = city }
    func setStateName(stateName: String) { self.stateName = stateName }
    func setPostalCode(postalCode: String) { self.postalCode = postalCode }
    func setCountryID(countryID: String) { self.countryID = countryID }
    func setPhone(phone: String) { self.phone = phone }
    
    
    func getID() -> Int32 { return self.ID }
    func getStateID() -> Int32 { return self.stateID }
    func getEavObject() -> Int32 { return self.eavObjectID }
    func getFirstName() -> String { return self.firstName }
    func getLastName() -> String { return self.lastName }
    func getCompanyName() -> String { return self.companyName }
    func getAddres() -> String { return self.address }
    func getAddressTwo() -> String { return self.address2 }
    func getCity() -> String { return self.city }
    func getStateName() -> String { return self.stateName }
    func getPostalCode() -> String { return self.postalCode }
    func getCountryID() -> String { return self.countryID }
    func getPhone() -> String { return self.phone }

}

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if enabled {
            billingNameTextField.textColor = UIColor.blackColor()
            billingLasNameTextField.textColor = UIColor.blackColor()
            billingCompanyNameTextField.textColor = UIColor.blackColor()
            billingPhoneNumberTextField.textColor = UIColor.blackColor()
            billingAddressTextField.textColor = UIColor.blackColor()
            billingAddressTwoTextField.textColor = UIColor.blackColor()
            billingCityTextField.textColor = UIColor.blackColor()
            billingStateTextField.textColor = UIColor.blackColor()
            billingStateTextField.textColor = UIColor.blackColor()
            billingPostalCodeTextField.textColor = UIColor.blackColor()
            billingCountryTextField.textColor = UIColor.blackColor()
        } else {
            billingNameTextField.textColor = UIColor.lightGrayColor()
            billingLasNameTextField.textColor = UIColor.lightGrayColor()
            billingCompanyNameTextField.textColor = UIColor.lightGrayColor()
            billingPhoneNumberTextField.textColor = UIColor.lightGrayColor()
            billingAddressTextField.textColor = UIColor.lightGrayColor()
            billingAddressTwoTextField.textColor = UIColor.lightGrayColor()
            billingCityTextField.textColor = UIColor.lightGrayColor()
            billingStateTextField.textColor = UIColor.lightGrayColor()
            billingStateTextField.textColor = UIColor.lightGrayColor()
            billingPostalCodeTextField.textColor = UIColor.lightGrayColor()
            billingCountryTextField.textColor = UIColor.lightGrayColor()
        }

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let serviceKeys = Array(Set(listOfRestrictions.map {$0.service!})).map{ $0 }
serviceKeys.map { key in
        self.restriction[key] = listOfRestrictions.filter{ $0.service! == key }.map { $0.sample! }
}

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public var messageStatus = MessageStatus.IncomingMessage {
    didSet {
        self.messageStatusChanged(messageStatus)
        switch messageStatus {
        case .IncomingMessage:
            haloView.alpha = 0.0
            whiteCircleView.fillColor = .clearColor()
            whiteCircleView.borderColor = .clearColor()
            colorCircleView.fillColor = .clearColor()
            colorCircleView.borderColor = .clearColor()
            haloView.color = .clearColor()
        default:
            whiteCircleView.fillColor = collectionViewBackgroundColor
            haloView.alpha = 1.0
        }
        
        switch messageStatus {
        case .ReadedMessage:
            colorCircleView.fillColor = bubbleColor
            colorCircleView.borderColor = bubbleColor
            haloView.color = bubbleColor
        case .DeliveredMessage:
            colorCircleView.fillColor = .whiteColor()
            colorCircleView.borderColor = bubbleColor
            haloView.color = bubbleColor
        case .NonDeliveredMessage:
            colorCircleView.fillColor = .clearColor()
            colorCircleView.borderColor = bubbleColor
            haloView.color = .clearColor()
        default: break
        }
    }
}

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//
//  How ARC causes memory leaks and leads to crashes out of the blue
//

import Foundation

let noLeak = 131030          // Empirically found constant
let withLeak  = noLeak*10

// Single-linked list
class R {
    var _a : R?
    init(a : R?) {
        _a = a
    }

//    One have to resort to a manual C-like code to fix it
//
//    deinit {
//        var i = self._a;
//        while let i2 = i {
//            let t = i2._a
//            i2._a = nil
//            i = t
//        }
//    }
}

func test(n:Int, leak:Bool) {
    let p0 = R(a : nil)
    var p = R(a : p0)
    for _ in 1...n {
        p = R(a : p)
    }
    if leak {
        // When the list is not cyclic it will be deleted by ARC just fine...
        p0._a = p
    }
} // Oh wait, the destructor isn't tail-recursive...

test(withLeak, leak: true)
print("Bad leaking function")
test(noLeak, leak: false)
print("Good function")

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struct Family: Enumerable {
  var name = "Smith"
  var father = "Bob"
  var mother = "Alice"
  var child = "Carol"

  func each(block: (String) -> Void) {
    for i in 0...2 {
      switch i {
        case 0: block("\(father) \(name)")
        case 1: block("\(mother) \(name)")
        case 2: block("\(child) \(name)")
        default: break
      }
    }
  }

}

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@objc(Squirrel)
class Белка {
    @objc(initWithName:)
    init (имя: String) { /*...*/ }
    @objc(hideNuts:inTree:)
    func прячьОрехи(Int, вДереве: Дерево) { /*...*/ }
}

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Ждем нового раздела под язык Swift. Ожидается наплыв.