From 64d98f8ee037282c35007b64c2649055c56af1db Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:19:03 +0200 Subject: Merging upstream version 1.68.2+dfsg1. Signed-off-by: Daniel Baumann --- tests/ui/pattern/usefulness/issue-12116.rs | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 tests/ui/pattern/usefulness/issue-12116.rs (limited to 'tests/ui/pattern/usefulness/issue-12116.rs') diff --git a/tests/ui/pattern/usefulness/issue-12116.rs b/tests/ui/pattern/usefulness/issue-12116.rs new file mode 100644 index 000000000..3cb92a540 --- /dev/null +++ b/tests/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), + 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() {} -- cgit v1.2.3