tests/ui/traits/alias/dont-elaborate-non-self.rs


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#![feature(trait_alias)]

use std::future::Future;

trait F<Fut: Future<Output = usize>> = Fn() -> Fut;

fn f<Fut>(a: dyn F<Fut>) {}
//~^ ERROR the size for values of type `(dyn Fn() -> Fut + 'static)` cannot be known at compilation time

fn main() {}