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//@ run-pass
use std::ops::Deref;
pub struct Pin<P>(P);
impl<P, T> Deref for Pin<P>
where
P: Deref<Target=T>,
{
type Target = T;
fn deref(&self) -> &T {
&*self.0
}
}
impl<P> Pin<P> {
fn poll(self) {}
}
fn main() {
let mut unit = ();
let pin = Pin(&mut unit);
pin.poll();
}
// https://github.com/rust-lang/rust/issues/53843
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