mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-24 07:44:10 +00:00
20 lines
619 B
Rust
20 lines
619 B
Rust
trait A<T> { }
|
|
|
|
struct B<'a, T:'a>(&'a (dyn A<T> + 'a));
|
|
|
|
trait X { }
|
|
impl<'a, T> X for B<'a, T> {}
|
|
|
|
fn i<'a, T, U>(v: Box<dyn A<U>+'a>) -> Box<dyn X + 'static> {
|
|
Box::new(B(&*v)) as Box<dyn X>
|
|
//~^ ERROR the parameter type `U` may not live long enough [E0310]
|
|
//~| ERROR the parameter type `U` may not live long enough [E0310]
|
|
//~| ERROR the parameter type `U` may not live long enough [E0310]
|
|
//~| ERROR lifetime may not live long enough
|
|
//~| ERROR cannot return value referencing local data `*v` [E0515]
|
|
//~| ERROR the parameter type `U` may not live long enough [E0310]
|
|
|
|
}
|
|
|
|
fn main() {}
|