ddd

DDD can lead to dealing with non-generic references to generic instances of types. Generically mapping these instances or generically calling code with them is not straightforward. I present how it can nonetheless be unobtrusively achieved with a general visitor-like pattern.

DDD can lead to generic types that are hard to import to. This technique can be used to make a generic call with multiple type arguments when each type argument is supplied individually, e. g. from an import into a domain model.