File: closure_args.rs

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// check-pass

// regression test for https://github.com/rust-lang/rust/issues/100800

#![feature(type_alias_impl_trait)]

trait Anything {}
impl<T> Anything for T {}
type Input = impl Anything;
fn run<F: FnOnce(Input) -> ()>(f: F, i: Input) {
    f(i);
}

fn main() {
    run(|x: u32| {println!("{x}");}, 0);
}