82 lines
2.0 KiB
Rust
82 lines
2.0 KiB
Rust
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// Don't leak the unique pointers
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use std::cast;
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struct r {
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v: *int,
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}
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impl Drop for r {
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fn drop(&mut self) {
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unsafe {
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info2!("r's dtor: self = {:x}, self.v = {:x}, self.v's value = {:x}",
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cast::transmute::<*mut r, uint>(self),
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cast::transmute::<**int, uint>(&(self.v)),
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cast::transmute::<*int, uint>(self.v));
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let _v2: ~int = cast::transmute(self.v);
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}
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}
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}
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fn r(v: *int) -> r {
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r {
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v: v
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}
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}
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struct t(Node);
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struct Node {
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next: Option<@mut t>,
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r: r
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}
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pub fn main() {
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unsafe {
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let i1 = ~0;
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let i1p = cast::transmute_copy(&i1);
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cast::forget(i1);
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let i2 = ~0;
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let i2p = cast::transmute_copy(&i2);
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cast::forget(i2);
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let x1 = @mut t(Node{
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next: None,
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r: {
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let rs = r(i1p);
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info2!("r = {:x}", cast::transmute::<*r, uint>(&rs));
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rs }
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});
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info2!("x1 = {:x}, x1.r = {:x}",
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cast::transmute::<@mut t, uint>(x1),
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cast::transmute::<*r, uint>(&x1.r));
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let x2 = @mut t(Node{
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next: None,
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r: {
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let rs = r(i2p);
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info2!("r2 = {:x}", cast::transmute::<*r, uint>(&rs));
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rs
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}
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});
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info2!("x2 = {:x}, x2.r = {:x}",
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cast::transmute::<@mut t, uint>(x2),
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cast::transmute::<*r, uint>(&(x2.r)));
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x1.next = Some(x2);
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x2.next = Some(x1);
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}
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}
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