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#![allow(dead_code)]
// Test that even when `T` is only used in covariant position, it
// is treated as invariant.
trait Get<T> : 'static {
fn get(&self) -> T;
}
fn get_min_from_max<'min, 'max>(v: Box<dyn Get<&'max i32>>)
-> Box<dyn Get<&'min i32>>
where 'max : 'min
{
// Previously OK, now an error as traits are invariant.
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() { }
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