rust/tests/ui/wf/wf-convert-unsafe-trait-obj.rs
2023-01-11 09:32:08 +00:00

19 lines
352 B
Rust

// Check that we do not allow casts or coercions
// to object unsafe trait objects by ref
#![feature(object_safe_for_dispatch)]
trait Trait: Sized {}
struct S;
impl Trait for S {}
fn takes_trait(t: &dyn Trait) {}
fn main() {
&S as &dyn Trait; //~ ERROR E0038
let t: &dyn Trait = &S; //~ ERROR E0038
takes_trait(&S); //~ ERROR E0038
}