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// 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() {}
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