2 #![feature(generic_const_exprs)]
3 #![allow(incomplete_features)]
5 pub struct Const<const U: u8>;
9 fn assoc_fn() -> Self::AssocTy;
12 impl<const U: u8> Trait for Const<U> // OK, trait impl predicates
14 Const<{ my_const_fn(U) }>: ,
16 type AssocTy = Const<{ my_const_fn(U) }>;
17 //~^ ERROR private type
18 fn assoc_fn() -> Self::AssocTy {
23 const fn my_const_fn(val: u8) -> u8 {
24 // body of this function doesn't matter