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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/issues/issue-67039-unsound-pin-partialeq.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/issues/issue-67039-unsound-pin-partialeq.rs')
-rw-r--r-- | src/test/ui/issues/issue-67039-unsound-pin-partialeq.rs | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/src/test/ui/issues/issue-67039-unsound-pin-partialeq.rs b/src/test/ui/issues/issue-67039-unsound-pin-partialeq.rs new file mode 100644 index 000000000..a496e58a7 --- /dev/null +++ b/src/test/ui/issues/issue-67039-unsound-pin-partialeq.rs @@ -0,0 +1,27 @@ +// Pin's PartialEq implementation allowed to access the pointer allowing for +// unsoundness by using Rc::get_mut to move value within Rc. +// See https://internals.rust-lang.org/t/unsoundness-in-pin/11311/73 for more details. + +use std::ops::Deref; +use std::pin::Pin; +use std::rc::Rc; + +struct Apple; + +impl Deref for Apple { + type Target = Apple; + fn deref(&self) -> &Apple { + &Apple + } +} + +impl PartialEq<Rc<Apple>> for Apple { + fn eq(&self, _rc: &Rc<Apple>) -> bool { + unreachable!() + } +} + +fn main() { + let _ = Pin::new(Apple) == Rc::pin(Apple); + //~^ ERROR type mismatch resolving +} |