File: closure_args.rs

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rustc 1.88.0%2Bdfsg1-1
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//@ check-pass

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

#![feature(type_alias_impl_trait)]

pub trait Anything {}
impl<T> Anything for T {}
pub type Input = impl Anything;

#[define_opaque(Input)]
fn bop(_: Input) {
    run(
        |x: u32| {
            println!("{x}");
        },
        0,
    );
}

fn run<F: FnOnce(Input) -> ()>(f: F, i: Input) {
    f(i);
}

fn main() {}