Very curious to know what techniques Kotliners use for managing resources. In the example below I manage a resource via the Closable technique:

interface Closable {
  val isClosed: Boolean

  fun close()
}

class ResourceX : Closable {
  val isClosed: Boolean
    get() = _isClosed
  private var _isClosed = false

  fun close() {
    if (!_isClosed) {
      // Do cleanup here.
      _isClosed = true
    }
  }

  fun operation() {
    if (_isClosed) throw IllegalStateException("ResourceX is closed")
    // Do stuff related to the operation here.
  }
}

https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/use.html https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.io/use.html

Do note that the Kotlin Native Standard library doesn't have the

Closable

and

AutoClosable

interfaces.