{"ast_node_type":"other","tokens":[{"end":65,"kind":"keyword","start":0,"text":"ty::Adt(adt_def,"}]}
                ty::Adt(adt_def, args) if !adt_def.is_enum() => {
            match self_ty.kind() {
                    adt_def.non_enum_variant().fields[f].ty(tcx, args)