{"ast_node_type":"variable","tokens":[{"end":86,"kind":"keyword","start":0,"text":"if"}]}
                if let hir::ExprKind::Path(hir::QPath::Resolved(None, path)) = ex.kind
            fn visit_expr(&mut self, ex: &'tcx hir::Expr<'tcx>) {
                    && let hir::def::Res::Local(hir_id) = path.res