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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/nll/issue-31567.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/nll/issue-31567.rs')
-rw-r--r-- | src/test/ui/nll/issue-31567.rs | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/src/test/ui/nll/issue-31567.rs b/src/test/ui/nll/issue-31567.rs new file mode 100644 index 000000000..623954e6d --- /dev/null +++ b/src/test/ui/nll/issue-31567.rs @@ -0,0 +1,25 @@ +// Regression test for #31567: cached results of projections were +// causing region relations not to be enforced at all the places where +// they have to be enforced. + +struct VecWrapper<'a>(&'a mut S); + +struct S(Box<u32>); + +fn get_dangling<'a>(v: VecWrapper<'a>) -> &'a u32 { + let s_inner: &'a S = &*v.0; //~ ERROR borrow may still be in use when destructor runs [E0713] + &s_inner.0 +} + +impl<'a> Drop for VecWrapper<'a> { + fn drop(&mut self) { + *self.0 = S(Box::new(0)); + } +} + +fn main() { + let mut s = S(Box::new(11)); + let vw = VecWrapper(&mut s); + let dangling = get_dangling(vw); + println!("{}", dangling); +} |