TEParserProtocol-Base&Box.swift

class BaseJsonDeserializer<T>: JsonDeserializer {
    init() {
        guard type(of: self) != BaseJsonDeserializer.self
            else { fatalError("do not initialize this abstract class directly") }
    }

    func parse(json: [String : Any]) -> T {
        fatalError("Abstract class. Subclass must override")
    }
}

class DeserializerBox<D: JsonDeserializer>: BaseJsonDeserializer<D.Response> {
    private let deserializer: D

    init(concreteDeserializer: D) {
        self.deserializer = concreteDeserializer
    }

    override func parse(json: [String : Any]) -> D.Response {
        return deserializer.parse(json: json)
    }
}