rust/tests/ui/issues/issue-14399.rs
2023-01-11 09:32:08 +00:00

19 lines
375 B
Rust

// run-pass
// #14399
// We'd previously ICE if we had a method call whose return
// value was coerced to a trait object. (v.clone() returns Box<B1>
// which is coerced to Box<A>).
// pretty-expanded FIXME #23616
#[derive(Clone)]
struct B1;
trait A { fn foo(&self) {} }
impl A for B1 {}
fn main() {
let v: Box<_> = Box::new(B1);
let _c: Box<dyn A> = v.clone();
}