diff options
Diffstat (limited to 'tests/ui/borrowck/issue-52967-edition-2018-needs-two-phase-borrows.rs')
-rw-r--r-- | tests/ui/borrowck/issue-52967-edition-2018-needs-two-phase-borrows.rs | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/tests/ui/borrowck/issue-52967-edition-2018-needs-two-phase-borrows.rs b/tests/ui/borrowck/issue-52967-edition-2018-needs-two-phase-borrows.rs new file mode 100644 index 000000000..fc8a07554 --- /dev/null +++ b/tests/ui/borrowck/issue-52967-edition-2018-needs-two-phase-borrows.rs @@ -0,0 +1,21 @@ +// 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(); +} |