{"ast_node_type":"variable","tokens":[{"end":67,"kind":"keyword","start":0,"text":"if"}]}
        if let Some(c) = self.query_system.on_disk_cache.as_ref() {
    fn store_side_effect(self, dep_node_index: DepNodeIndex, side_effect: QuerySideEffect) {
            c.store_side_effect(dep_node_index, side_effect)