rust/src/test/ui/regions/regions-close-object-into-object-1.rs
2018-12-25 21:08:33 -07:00

16 lines
287 B
Rust

#![feature(box_syntax)]
#![allow(warnings)]
trait A<T> { }
struct B<'a, T:'a>(&'a (A<T>+'a));
trait X { }
impl<'a, T> X for B<'a, T> {}
fn f<'a, T:'static, U>(v: Box<A<T>+'static>) -> Box<X+'static> {
box B(&*v) as Box<X> //~ ERROR `*v` does not live long enough
}
fn main() {}