I'm trying to achieve a nice API to cast objects from one type to another using

val child = myParent.asType<MyChild>()

and currently it works through that

TypeCasting.castObject(obj, targetClass)

method that is implemented using a map of KClass objects to a factory function for each class in the library. But it looks like having that map of factory funtions has a huge impact on the time spent in

linkExecutable

tasks because (I presume) every class is potentially referenced in the output binary.