21 if let Some(n) = Some(5) {
37 e = format!("{} {}", a, b);
58 async fn in_async() -> &'static str {
59 async fn f() -> &'static str {
75 const fn in_const() -> &'static str {
76 const fn f() -> &'static str {
120 // using tuples would be possible, but not always preferable
131 // could match with a smarter heuristic to avoid multiple assignments
149 macro_rules! assign {
164 macro_rules! in_macro {