rust/tests/ui/unsized-locals/by-value-trait-object-safety.rs
2023-01-11 09:32:08 +00:00

23 lines
388 B
Rust

#![feature(unsized_locals)]
//~^ WARN the feature `unsized_locals` is incomplete
pub trait Foo {
fn foo(self) -> String
where
Self: Sized;
}
struct A;
impl Foo for A {
fn foo(self) -> String {
format!("hello")
}
}
fn main() {
let x = *(Box::new(A) as Box<dyn Foo>);
x.foo();
//~^ERROR the `foo` method cannot be invoked on a trait object
}