:wave: How do I get the java class name of a Kotlin file that contains no classes? (I have Ktor Rout...

# getting-started

[eekboom]

👋 How do I get the java class name of a Kotlin file that contains no classes?
(I have Ktor Routing extension functions in a file and want to configure a logger with a Java class name, so that I don't have to manually code the logger name (and don't forget to update it when I rename the file.)
For example, I see that for a file RegisterRouting.kt Kotlin created a class named RegisterRoutingKt, but is there a function to get that name?

[Chris Lee]

kotlin-logging may help with this.

[Adam S]

I’ve seen this hack before

fun main() {
  println(object {}.javaClass.name)
}

[eekboom]

Ha, thanks Adam!
I had cloned kotlin-logging and just this moment, found that it uses exactly this 😄

[Adam S]

ah no, this is it https://stackoverflow.com/a/45782816/4161471

fun main() {
  println(object{}.javaClass.enclosingClass)
}

[Adam S]

kotlin-logging is a good shout 👍

[Adam S]

btw “Kotlin file that contains no classes”, the official term is ‘top level function’ or ‘top level declaration’. That might help with searches in the future :)

[eekboom]

Thanks! Indeed, I already searched on SO without success and of couse, it doesn't really matter if the Kotlin files contains classes as well.