rust/tests/ui/unsafe/union-modification.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

35 lines
727 B
Rust

// run-pass
union Foo {
bar: i8,
_blah: isize,
_zst: (),
}
struct FooHolder {
inner_foo: Foo
}
fn do_nothing(_x: &mut Foo) {}
pub fn main() {
let mut foo = Foo { bar: 5 };
do_nothing(&mut foo);
foo.bar = 6;
unsafe { foo.bar += 1; }
assert_eq!(unsafe { foo.bar }, 7);
unsafe {
let Foo { bar: inner } = foo;
assert_eq!(inner, 7);
}
let foo = Foo { bar: 5 };
let foo = if let 3 = if let true = true { 3 } else { 4 } { foo } else { foo };
let (_foo2, _random) = (foo, 42);
let mut foo_holder = FooHolder { inner_foo: Foo { bar: 5 } };
foo_holder.inner_foo.bar = 4;
assert_eq!(unsafe { foo_holder.inner_foo.bar }, 4);
drop(foo_holder);
}