// expect: drop 8 alive 8 1 gone 1/
// destructors 6: a drop that stores this somewhere reachable revives the value; it stays usable, its drop never runs again, and a later collection reclaims it
include rt;
int n;
word g, saved;
unchecked int keep(word p) { saved = p; return 0; }
fn make() { g = drop(heap(8), fn() { n++; keep(this); rt.put_s("drop "); rt.put_n(*this); rt.put_c(32); }); return 0; }
fn main() {
	make();
	g = 0;
	rt.gc();
	rt.gc();
	unchecked { word p = saved; rt.put_s("alive "); rt.put_n(p[0]); rt.put_c(32); }
	rt.put_n(n); rt.put_c(32);
	saved = 0;
	rt.gc(); rt.gc();
	rt.put_s("gone "); rt.put_n(n);
	rt.put_c(10);
	return 0;
}
// zc0: skip