File: explicit-self-objects-uniq.rs

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rustc 1.85.0%2Bdfsg3-1
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//@ run-pass

trait Foo {
    fn f(self: Box<Self>);
}

struct S {
    x: isize
}

impl Foo for S {
    fn f(self: Box<S>) {
        assert_eq!(self.x, 3);
    }
}

pub fn main() {
    let x = Box::new(S { x: 3 });
    let y = x as Box<dyn Foo>;
    y.f();
}