#![feature(unboxed_closures)] | |
trait SomeTrait<'a> { | |
type Associated; | |
} | |
fn give_me_ice<T>() { | |
callee::<fn(&()) -> <T as SomeTrait<'_>>::Associated>(); | |
//~^ ERROR the trait bound `for<'a> T: SomeTrait<'a>` is not satisfied [E0277] | |
} | |
fn callee<T: Fn<(&'static (),)>>() { | |
println!("{}", std::any::type_name::<<T as FnOnce<(&'static (),)>>::Output>()); | |
} | |
fn main() { | |
give_me_ice::<()>(); | |
} |