rust/tests/ui/unsafe/issue-47412.rs
Matthew Jasper 982b49494e Remove revisions for THIR unsafeck
This is to make the diff when stabilizing it easier to review.
2024-01-05 09:30:27 +00:00

22 lines
562 B
Rust

#[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() {}