import io:*
import set
import mem

fun runFunc(func: fun():void) {
    func()
}

obj ToClose {
    var data: int
    fun print4() {
        println(4)
    }
    fun testMethod() {
        runFunc(fun() { print4(); } )
    }
    fun testVariable() {
        data = 7
        runFunc(fun() { println(data); } )
    }
}

obj One (Object) {
    fun construct(): *One {
        return this
    }
    fun destruct() {
        var a:One
        mem::safe_recursive_delete(&a, fun(it: *One): set::set<*One> { return set::set(it); } )
    }
}


fun main():int {
    var it: ToClose
    it.testMethod()
    it.testVariable()
    //var a = 7
    //mem::safe_recursive_delete(&a, fun(it: int*): set::set<int*> { return set::set(it); } )
    return 0
}