rust/src/test/run-pass/lambda-no-leak.rs

// 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.

// Make sure we don't leak fn@s in silly ways.
fn force(f: fn@()) { f() }
fn main() {
    let x = 7;
    let _f = fn@() { log(error, x); };
    force(fn@() { log(error, x); });
}