[Change code to suspendable] #kotlin #coroutine

Suspendable.kt

suspend fun readFileSuspend(path: String): File =
    suspendCoroutine {
      readFile(path) { file ->
        it.resume(file)
      }
    }

    
fun readFile(path: String, onReady: (File) -> Unit) {
  Thread.sleep(1000)
  // some heavy operation

  onReady(File(path))
}