继承了下面的Codable类
class Vehicle: Codable {
let id: Int
let name: String
init(id: Int, name: String) {
self.id = id
self.name = name
}
}
class Car: Vehicle {
let type: String
init(id: Int, name: String, type: String) {
self.type = type
super.init(id: id, name: name)
}
}
显示错误
'required' initializer 'init(from:)' must be provided by subclass of 'Vehicle'
继承可编码类的正确方法是什么?
如果你允许Xcode修复这个问题,它会将这个方法添加到子类中:
required init(from decoder: Decoder) throws {
fatalError("init(from:) has not been implemented")
}