diff options
Diffstat (limited to 'tests/ui/generic-associated-types/issue-68641-check-gat-bounds.rs')
-rw-r--r-- | tests/ui/generic-associated-types/issue-68641-check-gat-bounds.rs | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/tests/ui/generic-associated-types/issue-68641-check-gat-bounds.rs b/tests/ui/generic-associated-types/issue-68641-check-gat-bounds.rs new file mode 100644 index 000000000..f1e779fcb --- /dev/null +++ b/tests/ui/generic-associated-types/issue-68641-check-gat-bounds.rs @@ -0,0 +1,29 @@ +// Regression test for #68641 + +trait UnsafeCopy { + type Item<'a>: Copy; + + fn copy<'a>(item: &Self::Item<'a>) -> Self::Item<'a> { + *item + } +} + +impl<T> UnsafeCopy for T { + type Item<'a> = T; + //~^ ERROR the trait bound `T: Copy` is not satisfied +} + +fn main() { + let mut s = String::from("Hello world!"); + + let copy = String::copy(&s); + + // Do we indeed point to the samme memory? + assert!(s.as_ptr() == copy.as_ptr()); + + // Any use of `copy` is certeinly UB after this + drop(s); + + // UB UB UB UB UB!! + println!("{}", copy); +} |