| //@ run-pass | |
| #![allow(unused_variables)] | |
| macro_rules! foo { | |
| ($l:lifetime, $l2:lifetime) => { | |
| fn f<$l: $l2, $l2>(arg: &$l str, arg2: &$l2 str) -> &$l str { | |
| arg | |
| } | |
| } | |
| } | |
| pub fn main() { | |
| foo!('a, 'b); | |
| let x: &'static str = f("hi", "there"); | |
| assert_eq!("hi", x); | |
| } |