// pp-exact macro_rules! brace { () => {}; } macro_rules! bracket[() => {};]; macro_rules! paren(() => {};); macro_rules! matcher_brackets { (paren) => {}; (bracket) => {}; (brace) => {}; } macro_rules! all_fragments { ($b : block, $e : expr, $i : ident, $it : item, $l : lifetime, $lit : literal, $m : meta, $p : pat, $pth : path, $s : stmt, $tt : tt, $ty : ty, $vis : vis) => {}; } fn main() {}