141         $sets = [];
144         $this->readSets($sets, function () {
152             $this->readSets($sets, function () {
157         $this->readEdges($atn, $sets);
366     private function readSets(array &$sets, callable $readUnicode) : void  argument
373             $sets[] = $iset;
392     private function readEdges(ATN $atn, array &$sets) : void  argument
403             $trans = $this->edgeFactory($atn, $ttype, $src, $trg, $arg1, $arg2, $arg3, $sets);
768         array $sets  argument
803                 return new SetTransition($target, $sets[$arg1]);
806                 return new NotSetTransition($target, $sets[$arg1]);