[rustc.git] / src / test / ui / regions / region-object-lifetime-4.rs

// Various tests related to testing how region inference works
// with respect to the object receivers.

trait Foo {
    fn borrowed<'a>(&'a self) -> &'a ();
}

// Here we have two distinct lifetimes, but we try to return a pointer
// with the longer lifetime when (from the signature) we only know
// that it lives as long as the shorter lifetime. Therefore, error.
fn borrowed_receiver_related_lifetimes2<'a,'b>(x: &'a (dyn Foo + 'b)) -> &'b () {
    x.borrowed()
    //~^ ERROR lifetime may not live long enough
}

fn main() {}
Commit	Line	Data
85aaf69f SL	1	// Various tests related to testing how region inference works
85aaf69f SL	2	// with respect to the object receivers.
1a4d82fc	3
85aaf69f SL	4	trait Foo {
	5	fn borrowed<'a>(&'a self) -> &'a ();
	6	}
223e47cc	7
85aaf69f SL	8	// Here we have two distinct lifetimes, but we try to return a pointer
	9	// with the longer lifetime when (from the signature) we only know
	10	// that it lives as long as the shorter lifetime. Therefore, error.
dc9dc135	11	fn borrowed_receiver_related_lifetimes2<'a,'b>(x: &'a (dyn Foo + 'b)) -> &'b () {
04454e1e	12	x.borrowed()
923072b8	13	//~^ ERROR lifetime may not live long enough
223e47cc LB	14	}
	15
	16	fn main() {}