1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
// check-pass // known-bug: #110395 #![feature(const_trait_impl)] #[const_trait] trait Foo { fn a(&self); } #[const_trait] trait Bar: ~const Foo {} struct S; impl Foo for S { fn a(&self) {} } impl const Bar for S {} //FIXME ~^ ERROR the trait bound fn main() {}