// same as resource-cycle2, but be sure to give r multiple fields... // Don't leak the unique pointers type u = { a: int, b: int, c: *int }; struct r { v: u, w: int, x: *int, } impl r : Drop { fn finalize(&self) { unsafe { let _v2: ~int = cast::reinterpret_cast(&self.v.c); // let _v3: ~int = unsafe::reinterpret_cast(self.x); } } } fn r(v: u, w: int, _x: *int) -> r unsafe { r { v: v, w: w, x: cast::reinterpret_cast(&0) } } enum t = { mut next: Option<@t>, r: r }; fn main() unsafe { let i1 = ~0xA; let i1p = cast::reinterpret_cast(&i1); cast::forget(move i1); let i2 = ~0xA; let i2p = cast::reinterpret_cast(&i2); cast::forget(move i2); let u1 = {a: 0xB, b: 0xC, c: i1p}; let u2 = {a: 0xB, b: 0xC, c: i2p}; let x1 = @t({ mut next: None, r: r(u1, 42, i1p) }); let x2 = @t({ mut next: None, r: r(u2, 42, i2p) }); x1.next = Some(x2); x2.next = Some(x1); }