UnownedErased
UnownedErased
is a property wrapper to hold objects with an unowned reference when using type-erasure.
Create this wrapper using an initial value and a closure to create the type-erased object.
Make sure to not create an UnownedErased
wrapper for already type-erased objects,
since their reference is most likely instantly lost.
-
The type-erased or otherwise mapped version of the value being held unowned.