rust/tests/ui/variance/variance-invariant-arg-obje...

24 lines
496 B
Rust

#![allow(dead_code)]
trait Get<T> : 'static {
fn get(&self, t: T) -> T;
}
fn get_min_from_max<'min, 'max>(v: Box<dyn Get<&'max i32>>)
-> Box<dyn Get<&'min i32>>
where 'max : 'min
{
v
//~^ ERROR lifetime may not live long enough
}
fn get_max_from_min<'min, 'max>(v: Box<dyn Get<&'min i32>>)
-> Box<dyn Get<&'max i32>>
where 'max : 'min
{
v
//~^ ERROR lifetime may not live long enough
}
fn main() { }