1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
//@ compile-flags: -Znext-solver #![feature(const_trait_impl)] #[const_trait] pub trait Tr { fn a(&self) {} fn b(&self) { ().a() //~^ ERROR the trait bound `(): [const] Tr` is not satisfied } } impl Tr for () {} fn main() {}