How do I check if a member is of a nullable class

you seem to have missed the code I posted. I can't use

isMarkedNullable

because I have to check the class type.

I did not miss your code.

it.returnType

is of type

KType

. Just call

isMarkedNullable

on that.

isMarkedNullable returns Boolean, not the KType. I cannot compare the type then.

it.isMarkedNullabe && it.classifier == YourClass::class

checks for

YourClass?

.