Pattern: Cast to nullable type
Issue: -
There are cases where as String? is misused as the safe cast (as? String), so if you want to prevent those cases, turn on this rule.
Example of incorrect code:
fun foo(a: Any?) {
val x: String? = a as String? // If 'a' is not String, ClassCastException will be thrown.
}Example of correct code:
fun foo(a: Any?) {
val x: String? = a as? String
}