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path: root/src/test/ui/issues/issue-28828.rs
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// run-pass
pub trait Foo {
    type Out;
}

impl Foo for () {
    type Out = bool;
}

fn main() {
    type Bool = <() as Foo>::Out;

    let x: Bool = true;
    assert!(x);

    let y: Option<Bool> = None;
    assert_eq!(y, None);
}