Files
kotlin/compiler/testData/codegen/bytecodeText/when/kt18818.kt
Mads Ager 690b8e0ac9 JVM_IR: Optimize null checks.
Introduce lowering to remove null checks for primitive type
expressions and replace them with true/false. Side-effects
are preserved.

Generate ifnull/ifnonnull instructions for null checks instead
of materializing a null literal for an equality check.
2019-01-19 09:43:43 +01:00

13 lines
246 B
Kotlin
Vendored

fun findUserId(username: String): Long? = null
fun main(args: Array<String>) {
val userId = findUserId("abcd")
when (userId) {
null -> println("User not found")
else -> println("User ID: $userId")
}
}
// 0 areEqual