rust/tests/ui/unsized-locals/by-value-trait-object-safety-rpass.rs
2024-02-16 20:02:50 +00:00

26 lines
447 B
Rust

//@ run-pass
#![allow(incomplete_features)]
#![feature(unsized_locals)]
pub trait Foo {
fn foo(self) -> String;
}
struct A;
impl Foo for A {
fn foo(self) -> String {
format!("hello")
}
}
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"));
}