24 lines
784 B
Rust
24 lines
784 B
Rust
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
|
|
// file at the top-level directory of this distribution and at
|
|
// http://rust-lang.org/COPYRIGHT.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
|
|
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
|
|
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
|
|
// option. This file may not be copied, modified, or distributed
|
|
// except according to those terms.
|
|
|
|
// error-pattern: reference is not valid outside of its lifetime
|
|
extern mod std;
|
|
use std::arc;
|
|
fn main() {
|
|
let x = ~arc::RWARC(1);
|
|
let mut y = None;
|
|
do x.write_downgrade |write_mode| {
|
|
do (&write_mode).write_cond |_one, cond| {
|
|
y = Some(cond);
|
|
}
|
|
}
|
|
y.unwrap().wait();
|
|
}
|