斯威夫特：内嵌的泛型枚举可用于所有类型吗？

Question

A generic class can have an enum nested inside it:

 class MyClass<T> {

      enum MyEnum { 
      }

      var myEnum: MyEnum
 }

However when using the enum in a protocol the compiler is asking to fill in the type, merely to use the enum.

 protocol MyProtocol {
      var myEnum: MyClass.MyEnum { get }
      // Error: Reference to generic type 'MyClass' requires arguments in <...>
 }

Is it possible to define a nested enum inside a generic that works with all types?

Answer 1

Maybe you can use Any or AnyObject:

protocol MyProtocol {
    var myEnum: MyClass<Any>.MyEnum{ get }
}