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// Adaptation of existing ui test (from way back in
// rust-lang/rust#2329), that starts passing with this feature in
// place.
// run-pass
use std::sync::mpsc::channel;
fn main() {
let (tx, rx) = channel();
let x = Some(rx);
tx.send(false).unwrap();
tx.send(false).unwrap();
match x {
Some(z) if z.recv().unwrap() => { panic!() },
Some(z) => { assert!(!z.recv().unwrap()); },
None => panic!()
}
}
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