rust/tests/ui/rfc-2632-const-trait-impl/const_derives/derive-const-use.rs
2023-04-16 11:38:52 +00:00

20 lines
366 B
Rust

// known-bug: #110395
#![feature(const_trait_impl, const_cmp, const_default_impls, derive_const)]
pub struct A;
impl const Default for A {
fn default() -> A { A }
}
impl const PartialEq for A {
fn eq(&self, _: &A) -> bool { true }
}
#[derive_const(Default, PartialEq)]
pub struct S((), A);
const _: () = assert!(S((), A) == S::default());
fn main() {}