rust/tests/ui/lifetimes/refcell-in-tail-expr.rs
2024-06-18 04:14:43 +08:00

17 lines
446 B
Rust

//@ revisions: edition2021 edition2024
//@ [edition2021] edition: 2021
//@ [edition2024] edition: 2024
//@ [edition2024] compile-flags: -Zunstable-options
//@ [edition2024] check-pass
#![cfg_attr(edition2024, feature(shorter_tail_lifetimes))]
fn main() {
let cell = std::cell::RefCell::new(0u8);
if let Ok(mut byte) = cell.try_borrow_mut() {
//[edition2021]~^ ERROR: `cell` does not live long enough
*byte = 1;
}
}