原型在 Swift 中的实现
Prototype is a creational design pattern that allows cloning objects, even complex ones, without coupling to their specific classes.
All prototype classes should have a common interface that makes it possible to copy objects even if their concrete classes are unknown. Prototype objects can produce full copies since objects of the same class can access each other's private fields.
在 Swift 中使用模式
Usage examples: The Prototype pattern is available in Swift out of the box with a
Identification: The prototype can be easily recognized by a
copy() methods, etc.