rust/tests/ui/associated-inherent-types/generic-const-exprs.rs

29 lines
531 B
Rust

//@ check-pass
#![feature(inherent_associated_types, generic_const_exprs)]
#![allow(incomplete_features)]
struct Parent<const O: usize>;
impl<const O: usize> Parent<O> {
type Mapping<const I: usize> = Store<{ O + I }>
where
[(); O + I]:
;
}
struct Store<const N: usize>;
impl<const N: usize> Store<N> {
const REIFIED: usize = N;
fn reify() -> usize {
N
}
}
fn main() {
let _ = Parent::<2>::Mapping::<{ 12 * 2 }>::REIFIED;
let _ = Parent::<1>::Mapping::<{ 2 * 5 }>::reify();
}