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// 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.
// -*- rust -*-
enum t { make_t(@int), clam, }
fn foo(s: @int) {
let count = ::std::sys::refcount(s);
let x: t = make_t(s); // ref up
match x {
make_t(y) => {
debug!("%?", y); // ref up then down
}
_ => { debug!("?"); fail!(); }
}
debug!(::std::sys::refcount(s));
assert_eq!(::std::sys::refcount(s), count + 1u);
let _ = ::std::sys::refcount(s); // don't get bitten by last-use.
}
pub fn main() {
let s: @int = @0; // ref up
let count = ::std::sys::refcount(s);
foo(s); // ref up then down
debug!("%u", ::std::sys::refcount(s));
let count2 = ::std::sys::refcount(s);
let _ = ::std::sys::refcount(s); // don't get bitten by last-use.
assert_eq!(count, count2);
}
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