RefCountDisposable-example.swift

let disposable1 = Disposables.create { print("disposed-1 ☠️") }

let refCountDisposable = RefCountDisposable(disposable: disposable1)

let holdDisposable1 = refCountDisposable.retain()
let holdDisposable2 = refCountDisposable.retain()

print("main dispose")
refCountDisposable.dispose()

print("hold1 dispose")
holdDisposable1.dispose()

print("hold1 dispose")
holdDisposable2.dispose()

// log:
// main dispose
// hold1 dispose
// hold2 dispose
// disposed-1 ☠️