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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/generic-associated-types/issue-68641-check-gat-bounds.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/generic-associated-types/issue-68641-check-gat-bounds.rs')
-rw-r--r-- | src/test/ui/generic-associated-types/issue-68641-check-gat-bounds.rs | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/test/ui/generic-associated-types/issue-68641-check-gat-bounds.rs b/src/test/ui/generic-associated-types/issue-68641-check-gat-bounds.rs new file mode 100644 index 000000000..617d985dc --- /dev/null +++ b/src/test/ui/generic-associated-types/issue-68641-check-gat-bounds.rs @@ -0,0 +1,31 @@ +// Regression test for #68641 + +#![feature(generic_associated_types)] + +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); +} |