| // Copyright 2018 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. |
| |
| // 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: ast zflags edition |
| //[zflags]compile-flags: -Z borrowck=migrate -Z two-phase-borrows |
| //[edition]compile-flags: --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(); |
| } |
