Why does Intellij complain with `Smart cast to string is imp kotlinlang #intellij

Why does Intellij complain with `Smart cast to 'st...

Jurriaan Mous

04/10/2018, 6:50 AM

Why does Intellij complain with

Smart cast to 'string' is impossible, because 'token.value' is a public API property declared in different module

? I have a property that returns a

String?

and after a null check could be smart casted to

String

. If I dumb cast it with !! then the compiler warns with:

w: PATH: Unnecessary non-null assertion (!!) on a non-null receiver of type String

. What is a proper solution for this?