From 218caa410aa38c29984be31a5229b9fa717560ee Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:19:13 +0200 Subject: Merging upstream version 1.68.2+dfsg1. Signed-off-by: Daniel Baumann --- tests/ui/moves/move-guard-same-consts.rs | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 tests/ui/moves/move-guard-same-consts.rs (limited to 'tests/ui/moves/move-guard-same-consts.rs') diff --git a/tests/ui/moves/move-guard-same-consts.rs b/tests/ui/moves/move-guard-same-consts.rs new file mode 100644 index 000000000..b96ef8e19 --- /dev/null +++ b/tests/ui/moves/move-guard-same-consts.rs @@ -0,0 +1,25 @@ +// #47295: We used to have a hack of special-casing adjacent amtch +// arms whose patterns were composed solely of constants to not have +// them linked in the cfg. +// +// This was broken for various reasons. In particular, that hack was +// originally authored under the assunption that other checks +// elsewhere would ensure that the two patterns did not overlap. But +// that assumption did not hold, at least not in the long run (namely, +// overlapping patterns were turned into warnings rather than errors). + + + +fn main() { + let x: Box<_> = Box::new(1); + + let v = (1, 2); + + match v { + (1, 2) if take(x) => (), + (1, 2) if take(x) => (), //~ ERROR use of moved value: `x` + _ => (), + } +} + +fn take(_: T) -> bool { false } -- cgit v1.2.3