I have this inline reified function, is there a way for compiler to optimize away when branches other than the matching one (considering it's inline)

suspend inline fun <reified T> get(key: String): T? =
        dao.getById(key)?.let {
            when (T::class) {
                String::class -> it.value as T
                Int::class -> it.value.toInt() as T
                Float::class -> it.value.toFloat() as T
                Double::class -> it.value.toDouble() as T
                else -> throw IllegalArgumentException("Not implemented for the given type.")
            }
        }

Take a look at the bytecode

I did, all when branches were there

File an improvement request to http://kotl.in/issue Explain your use-case there

Created here https://youtrack.jetbrains.com/issue/KT-33693?project=kt