1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
|
// This is a regression test for #52967, where we discovered that in
// the initial deployment of NLL for the 2018 edition, I forgot to
// turn on two-phase-borrows in addition to `-Z borrowck=migrate`.
//@ revisions: edition2015 edition2018
//@[edition2018]edition:2018
//@ run-pass
fn the_bug() {
let mut stuff = ("left", "right");
match stuff {
(ref mut left, _) if *left == "left" => { *left = "new left"; }
_ => {}
}
assert_eq!(stuff, ("new left", "right"));
}
fn main() {
the_bug();
}
|
