6.10.16.work.Json.swift

enum UnderlyingValue {
	case string(Stirng)
	case int(Int)
	case double(Double)
	case array([[String:AnyObject]])
	case dictionary([String:AnyObject]])

	var dictionary: [String:AnyObject] {
		return determinSelf<>([String: AnyObject])
	}
	
	func determinSelf<T>() -> T? {
		switch self {
			case .string(let value): 
				if value.type == T {
					return value
				} 
				return nil
			case .int(let value): 
				if value.type == T {
					return value
				}
				return nil
			case .double(let value): 
				if value.type == T {
					return value
				}
				return nil
			case .array(let value): 
				if value.type == T {
					return value
				}
			case .dictionary(let value): 
				if value.type == T {
					return value
				}
		}
	}		
}