| // Test explores how `#[structral_match]` behaves in tandem with |
| // `*const` and `*mut` pointers. |
| |
| //@ run-pass |
| |
| #![warn(pointer_structural_match)] |
| |
| struct NoDerive(#[allow(dead_code)] i32); |
| |
| // This impl makes NoDerive irreflexive |
| // (which doesn't matter here because `<*const T>::eq` won't recur on `T`). |
| impl PartialEq for NoDerive { fn eq(&self, _: &Self) -> bool { false } } |
| |
| impl Eq for NoDerive { } |
| |
| #[derive(PartialEq, Eq)] |
| struct WrapParam<X>(*const X); |
| |
| const WRAP_UNSAFE_PARAM: WrapParam<NoDerive> = WrapParam(std::ptr::null()); |
| |
| fn main() { |
| match WRAP_UNSAFE_PARAM { |
| WRAP_UNSAFE_PARAM => { println!("WRAP_UNSAFE_PARAM correctly matched itself"); } |
| _ => { panic!("WRAP_UNSAFE_PARAM did not match itself"); } |
| } |
| } |
