rust/src/test/run-pass/once-move-out-on-heap.rs

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// Copyright 2013-2014 The Rust Project Developers. See the COPYRIGHT
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// 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.
// Testing guarantees provided by once functions.
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#[feature(once_fns)];
extern crate sync;
use sync::Arc;
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fn foo(blk: proc()) {
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blk();
}
pub fn main() {
let x = Arc::new(true);
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foo(proc() {
assert!(*x);
drop(x);
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});
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}