{"ast_node_type":"variable","tokens":[{"end":64,"kind":"keyword","start":0,"text":"if"}]}
                    if let hir::ExprKind::Path(qpath) = &ex.kind
                fn visit_expr(&mut self, ex: &'hir hir::Expr<'hir>) {
                        && let hir::QPath::Resolved(_, path) = qpath