rust/tests/ui/rfcs/rfc-2294-if-let-guard/guard-lifetime-2.rs

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2023-08-24 03:41:30 -05:00
// References to by-mutable-ref bindings in an if-let guard *can* be used after the guard.
// check-pass
#![feature(if_let_guard)]
fn main() {
let mut x: Option<Option<String>> = Some(Some(String::new()));
match x {
Some(ref mut y) if let Some(ref z) = *y => {
let _z: &String = z;
let _y: &mut Option<String> = y;
}
_ => {}
}
}