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kotlinlang

very dumb question, why does idea complain about unsafe cast in
```fun cast(value: Any?) = (value as? Map&lt;String, String?&gt;)```
?

maybe followup question, am I misusing `as?`? context, in this scenario I know that `value` might not be a map, so using `as?` on purpose since it returns `null` , but this “null-trick” makes the cast safe in my eyes, since `null`s need to be handled explicitly

The unsafe part of the cast is the generics on the map. The cast will succeed on any Map (not return null) due to type erasure, even on maps with other types as keys or values, and the compiler is warning you that this will break the type safety

ah yes, that ofc. and looking at warning more carefully it does indeed complain about the `String` part, somehow I thought it was complaining about the `Map`