onFail

kotlin-stdlib / kotlin.io / FileTreeWalk / onFail
Platform and version requirements: JVM (1.0) 
fun onFail(
    function: (File, IOException) -> Unit
): FileTreeWalk

Set a callback function, that is called on a directory when it's impossible to get its file list.

onEnter and onLeave callback functions are called even in this case.

© 2010–2021 JetBrains s.r.o. and Kotlin Programming Language contributors
Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.io/-file-tree-walk/on-fail.html