File: by-value-trait-dyn-compatibility-with-default.rs

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rustc 1.87.0%2Bdfsg1-1
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//@ run-pass

#![allow(incomplete_features)]
#![feature(unsized_locals, unsized_fn_params)]

pub trait Foo {
    fn foo(self) -> String {
        format!("hello")
    }
}

struct A;

impl Foo for A {}

fn main() {
    let x = *(Box::new(A) as Box<dyn Foo>);
    assert_eq!(x.foo(), format!("hello"));

    // I'm not sure whether we want this to work
    let x = Box::new(A) as Box<dyn Foo>;
    assert_eq!(x.foo(), format!("hello"));
}