1 #![feature(type_alias_impl_trait)]
7 type FooFn<B> = impl FnOnce(B);
9 fn foo<B: Bar>() -> FooFn<B> {
10 fn mop<B: Bar>(bar: B) { bar.bar() }
11 mop // NOTE: no function pointer, but function zst item
12 //~^ ERROR the trait bound `B: Bar` is not satisfied
16 let boom: FooFn<u32> = unsafe { core::mem::zeroed() };