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// Copyright 2016 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.
// revisions: ast mir
//[mir]compile-flags: -Z borrowck=mir
// FIXME(#49821) -- No tip about using a let binding
use std::cell::RefCell;
fn main() {
let mut r = 0;
let s = 0;
let x = RefCell::new((&mut r,s));
let val: &_ = x.borrow().0;
//[ast]~^ ERROR borrowed value does not live long enough [E0597]
//[ast]~| NOTE temporary value dropped here while still borrowed
//[ast]~| NOTE temporary value does not live long enough
//[ast]~| NOTE consider using a `let` binding to increase its lifetime
//[mir]~^^^^^ ERROR borrowed value does not live long enough [E0597]
//[mir]~| NOTE temporary value does not live long enough
//[mir]~| NOTE temporary value only lives until here
println!("{}", val);
//[mir]~^ borrow later used here
}
//[ast]~^ NOTE temporary value needs to live until here
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