diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/unsafe/issue-47412.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/unsafe/issue-47412.rs')
-rw-r--r-- | src/test/ui/unsafe/issue-47412.rs | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/test/ui/unsafe/issue-47412.rs b/src/test/ui/unsafe/issue-47412.rs new file mode 100644 index 000000000..df6d6e422 --- /dev/null +++ b/src/test/ui/unsafe/issue-47412.rs @@ -0,0 +1,24 @@ +// revisions: mir thir +// [thir]compile-flags: -Z thir-unsafeck + +#[derive(Copy, Clone)] +enum Void {} + +// Tests that we detect unsafe places (specifically, union fields and +// raw pointer dereferences), even when they're matched on while having +// an uninhabited type (equivalent to `std::intrinsics::unreachable()`). + +fn union_field() { + union Union { unit: (), void: Void } + let u = Union { unit: () }; + match u.void {} + //~^ ERROR access to union field is unsafe +} + +fn raw_ptr_deref() { + let ptr = std::ptr::null::<Void>(); + match *ptr {} + //~^ ERROR dereference of raw pointer is unsafe +} + +fn main() {} |