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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:03 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:03 +0000 |
commit | 64d98f8ee037282c35007b64c2649055c56af1db (patch) | |
tree | 5492bcf97fce41ee1c0b1cc2add283f3e66cdab0 /tests/ui/pattern/usefulness/match-ref-ice.rs | |
parent | Adding debian version 1.67.1+dfsg1-1. (diff) | |
download | rustc-64d98f8ee037282c35007b64c2649055c56af1db.tar.xz rustc-64d98f8ee037282c35007b64c2649055c56af1db.zip |
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/pattern/usefulness/match-ref-ice.rs')
-rw-r--r-- | tests/ui/pattern/usefulness/match-ref-ice.rs | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/tests/ui/pattern/usefulness/match-ref-ice.rs b/tests/ui/pattern/usefulness/match-ref-ice.rs new file mode 100644 index 000000000..dee110f96 --- /dev/null +++ b/tests/ui/pattern/usefulness/match-ref-ice.rs @@ -0,0 +1,16 @@ +#![deny(unreachable_patterns)] + +// The arity of `ref x` is always 1. If the pattern is compared to some non-structural type whose +// arity is always 0, an ICE occurs. +// +// Related issue: #23009 + +fn main() { + let homura = [1, 2, 3]; + + match homura { + [1, ref _madoka, 3] => (), + [1, 2, 3] => (), //~ ERROR unreachable pattern + [_, _, _] => (), + } +} |