rust/tests/ui/macros/macro-lifetime.rs
2024-02-16 20:02:50 +00:00

15 lines
226 B
Rust

//@ run-pass
macro_rules! foo {
($l:lifetime) => {
fn f<$l>(arg: &$l str) -> &$l str {
arg
}
}
}
pub fn main() {
foo!('a);
let x: &'static str = f("hi");
assert_eq!("hi", x);
}