rust/tests/ui/regions/regions-close-object-into-object-5.rs
2023-01-11 09:32:08 +00:00

26 lines
625 B
Rust

#![allow(warnings)]
trait A<T>
{
fn get(&self) -> T { panic!() }
}
struct B<'a, T: 'a>(&'a (A<T> + 'a));
trait X { fn foo(&self) {} }
impl<'a, T> X for B<'a, T> {}
fn f<'a, T, U>(v: Box<A<T> + 'static>) -> Box<X + 'static> {
// oh dear!
Box::new(B(&*v)) as Box<dyn X>
//~^ ERROR the parameter type `T` may not live long enough
//~| ERROR the parameter type `T` may not live long enough
//~| ERROR the parameter type `T` may not live long enough
//~| ERROR the parameter type `T` may not live long enough
//~| ERROR cannot return value referencing local data `*v` [E0515]
}
fn main() {}