Defer for Swift 1.2

Deferrable.swift

class Deferrable {
    let closure: ()->Void

    init(closure: ()->Void) {
        self.closure = closure
    }

    deinit {
        closure()
    }
}

func test() {
    print("Test 1")

    Deferrable {
        print("Test 2")
    }

    print("Test 3")
}

test()