{"ast_node_type":"other","tokens":[{"end":51,"kind":"keyword","start":0,"text":"///"}]}
    /// `match foo() { Some(a) => (), None => () }`
    /// Call `f` on every "binding" in a pattern, e.g., on `a` in
    pub fn each_binding(&self, mut f: impl FnMut(Symbol, ByRef, Ty<'tcx>, Span)) {