코드리뷰 중 NSSecureCoding 일부

NSSecureCodingExample.swift

class Beverage: NSObject, NSSecureCoding {
    
    private let name: String
    private let price: Int
  
// MARK: NSSecureCoding
    private struct NSCoderKeys {
        static let nameKey = "name"
        static let priceKey = "price"
    }
    
    static var supportsSecureCoding: Bool {
        return true
    }
    
    func encode(with aCoder: NSCoder) {
        aCoder.encode(name as NSString, forKey: NSCoderKeys.nameKey)
        aCoder.encode(NSNumber(value: price), forKey: NSCoderKeys.priceKey)
    }
    
    required init?(coder aDecoder: NSCoder) {
        guard let name = aDecoder.decodeObject(of: NSString.self, forKey: NSCoderKeys.nameKey) else {
            return nil
        }
        guard let price = aDecoder.decodeObject(of: NSNumber.self, forKey: NSCoderKeys.priceKey) else {
            return nil
        }
        self.name = name as String
        self.price = price.intValue
    }
}

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