macro-lifetime.rs

//@ 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);
}

// ferrocene-annotations: fls_xa7lp0zg1ol2
// Declarative Macros
//
// ferrocene-annotations: fls_yqcygq3y6m5j
// Lifetime
//
// ferrocene-annotations: fls_wjldgtio5o75
// Macro Expansion
//
// ferrocene-annotations: fls_vnvt40pa48n8
// Macro Invocation
//
// ferrocene-annotations: fls_4apk1exafxii
// Macro Matching
//
// ferrocene-annotations: fls_ym00b6ewf4n3
// Macro Transcription
//
// ferrocene-annotations: fls_8nzypdu9j3ge
// Metavariables
//
// ferrocene-annotations: fls_n3ktmjqf87qb
// Rule Matching
//
// ferrocene-annotations: fls_qpx6lgapce57
// Token Matching