macro_rules! expand_if_cached { ([], $tokens:expr) => { ... }; ([(cache) $($rest:tt)*], $tokens:expr) => { ... }; ([$other:tt $($modifiers:tt)*], $tokens:expr) => { ... }; }
macro_rules! expand_if_cached { ([], $tokens:expr) => { ... }; ([(cache) $($rest:tt)*], $tokens:expr) => { ... }; ([$other:tt $($modifiers:tt)*], $tokens:expr) => { ... }; }