diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/moves/move-guard-same-consts.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/moves/move-guard-same-consts.rs')
-rw-r--r-- | src/test/ui/moves/move-guard-same-consts.rs | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/src/test/ui/moves/move-guard-same-consts.rs b/src/test/ui/moves/move-guard-same-consts.rs new file mode 100644 index 000000000..b96ef8e19 --- /dev/null +++ b/src/test/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>(_: T) -> bool { false } |