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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/reachable/unwarned-match-on-never.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/reachable/unwarned-match-on-never.rs')
-rw-r--r-- | src/test/ui/reachable/unwarned-match-on-never.rs | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/test/ui/reachable/unwarned-match-on-never.rs b/src/test/ui/reachable/unwarned-match-on-never.rs new file mode 100644 index 000000000..71f8fe3a7 --- /dev/null +++ b/src/test/ui/reachable/unwarned-match-on-never.rs @@ -0,0 +1,24 @@ +#![deny(unreachable_code)] +#![allow(dead_code)] + +#![feature(never_type)] + +fn foo(x: !) -> bool { + // Explicit matches on the never type are unwarned. + match x {} + // But matches in unreachable code are warned. + match x {} //~ ERROR unreachable expression +} + +fn bar() { + match (return) { + () => () //~ ERROR unreachable arm + } +} + +fn main() { + return; + match () { //~ ERROR unreachable expression + () => (), + } +} |