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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/pattern/usefulness/issue-12116.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/pattern/usefulness/issue-12116.rs')
-rw-r--r-- | src/test/ui/pattern/usefulness/issue-12116.rs | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/test/ui/pattern/usefulness/issue-12116.rs b/src/test/ui/pattern/usefulness/issue-12116.rs new file mode 100644 index 000000000..3cb92a540 --- /dev/null +++ b/src/test/ui/pattern/usefulness/issue-12116.rs @@ -0,0 +1,21 @@ +#![feature(box_patterns)] +#![allow(dead_code)] +#![allow(unused_variables)] +#![deny(unreachable_patterns)] + + +enum IntList { + Cons(isize, Box<IntList>), + Nil +} + +fn tail(source_list: &IntList) -> IntList { + match source_list { + &IntList::Cons(val, box ref next_list) => tail(next_list), + &IntList::Cons(val, box IntList::Nil) => IntList::Cons(val, Box::new(IntList::Nil)), + //~^ ERROR unreachable pattern + _ => panic!(), + } +} + +fn main() {} |