18     public $parent;  variable in Antlr\\Antlr4\\Runtime\\PredictionContexts\\SingletonPredictionContext
23     public function __construct(int $returnState, ?PredictionContext $parent = null)  argument
25         parent::__construct();
27         $this->parent = $parent;
31     public static function create(?PredictionContext $parent, int $returnState) : PredictionContext  argument
34         if ($returnState === PredictionContext::EMPTY_RETURN_STATE && $parent === null) {
38         return new SingletonPredictionContext($returnState, $parent);
52         return $this->parent;
78         return Equality::equals($this->parent, $other->parent);
83         $up = $this->parent === null ? '' : (string) $this->parent;
98         if ($this->parent === null) {
102         return Hasher::hash($this->parent, $this->returnState);