{"ast_node_type":"other","tokens":[{"end":74,"kind":"keyword","start":0,"text":"&&"}]}
                && cx.tcx.is_lang_item(struct_def.did(), LangItem::Option)
            if let ty::Adt(struct_def, args) = instance.ty(cx.tcx, cx.typing_env()).kind()
                && let ty::FnPtr(sig, header) = args.type_at(0).kind()