Delegate for flipping a boolean on access

FlipOnAccess.kt

class FlipOnAccess(
    private val initialValue: Boolean = false,
    private val onlyFirstAccess: Boolean = false
) : ReadOnlyProperty<Any?, Boolean> {
  private val flipper = AtomicInteger(1)

  private val Int.isEven get() = and(1) == 0

  override fun getValue(thisRef: Any?, property: KProperty<*>) =
      with(flipper.getAndIncrement()) {
        when {
          this == 1 -> initialValue
          isEven || onlyFirstAccess -> !initialValue
          else -> initialValue
        }
      }
}