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30 lines
728 B
Rust
30 lines
728 B
Rust
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// Copyright 2015 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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use std::rc::Rc;
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struct Foo<'r>(&'r mut i32);
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impl<'r> Drop for Foo<'r> {
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fn drop(&mut self) {
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*self.0 += 1;
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}
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}
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fn main() {
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let mut drops = 0;
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{
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let _: Rc<Send> = Rc::new(Foo(&mut drops));
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}
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assert_eq!(1, drops);
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}
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