Escaped Mutant for Mutator "AssignCoalesce": --- Original +++ New @@ @@ */ public function getSymbol() : Node { - return $this->symbol ??= $this->getHeader()->getChild($this->getIndex()); + return $this->symbol = $this->getHeader()->getChild($this->getIndex()); } }

Escaped Mutant for Mutator "MethodCallRemoval": --- Original +++ New @@ @@ */ public function run() : void { - $this->stack->reset(); + $rootNode = $this->tree->getRootNode(); $this->listener->onStart($rootNode); $this->stack->push($rootNode);

Escaped Mutant for Mutator "MethodCallRemoval": --- Original +++ New @@ @@ { $this->stack->reset(); $rootNode = $this->tree->getRootNode(); - $this->listener->onStart($rootNode); + $this->stack->push($rootNode); while (!$this->stack->isEmpty()) { $symbol = $this->stack->pop();

Escaped Mutant for Mutator "InstanceOf_": --- Original +++ New @@ @@ } elseif ($symbol instanceof Node) { $this->stack->push(new EopSymbol($symbol)); $this->listener->onBeginProduction($symbol, $this->stack); - } elseif ($symbol instanceof Symbol) { + } elseif (true) { $this->listener->onSymbol($symbol, $this->stack); } }

Escaped Mutant for Mutator "MethodCallRemoval": --- Original +++ New @@ @@ $this->listener->onSymbol($symbol, $this->stack); } } - $this->listener->onFinish(); + } }

Escaped Mutant for Mutator "Coalesce": --- Original +++ New @@ @@ private ?int $rootNodeId = null; public function createNode(string $name, int $id = null) : Node { - $node = new Node($id ?? $this->getNextNodeId(), $name); + $node = new Node($this->getNextNodeId() ?? $id, $name); $this->nodeMap[$node->getId()] = $node; return $node; }

Escaped Mutant for Mutator "Increment": --- Original +++ New @@ @@ } private function getNextNodeId() : int { - return $this->nextNodeId++; + return $this->nextNodeId--; } }

Escaped Mutant for Mutator "ArrayOneItem": --- Original +++ New @@ @@ $productionList[] = $production; } } - return $productionList; + return count($productionList) > 1 ? array_slice($productionList, 0, 1, true) : $productionList; } }

Escaped Mutant for Mutator "UnwrapArrayValues": --- Original +++ New @@ @@ private array $symbolList; public function __construct(private readonly int $headerId, private readonly int $index, int ...$symbolList) { - $this->symbolList = array_values($symbolList); + $this->symbolList = $symbolList; } public function __toString() : string {