🍰 Layered Cakewalk [Swift] - Generic<> stored static fields workaround. (Swift)

MyClass.swift

import UIKit

// 🍰👻 Generic<> stored static fields workaround.
//
private var _MyClass_static: [ObjectIdentifier : Any] = [:] // need some global space
//
class MyClass<T>
{
    typealias StaticClass = MyClassStatic<Self>
    
    static var `static`: StaticClass
    {
        let key = ObjectIdentifier(Self.self)
        return
            (_MyClass_static[key] as! StaticClass?)
            ??
            {
                let result = StaticClass()
                _MyClass_static[key] = result
                return result
            }()
    }
}

class MyClassStatic<TMyClass>
{
    var staticValue: String = ""
}

MyClass<String>.`static`.staticValue = "wolly"
MyClass<Int>.`static`.staticValue    = "fred"

print(MyClass<String>.`static`.staticValue) // wolly
print(MyClass<Int>.`static`.staticValue)    // fred

🍰⛱ Usage Example

Copy into a playground, and play...

MyClass<String>.`static`.staticValue = "wolly"
MyClass<Int>.`static`.staticValue    = "fred"

print(MyClass<String>.`static`.staticValue) // wolly
print(MyClass<Int>.`static`.staticValue)    // fred