Escaped Mutant for Mutator "Foreach_": --- Original +++ New @@ @@ /** @param \Iterator<mixed, mixed> ...$iterators */ public function rewind(\Iterator ...$iterators) : void { - foreach ($iterators as $iterator) { + foreach (array() as $iterator) { $iterator->rewind(); } }

Escaped Mutant for Mutator "MethodCallRemoval": --- Original +++ New @@ @@ public function rewind(\Iterator ...$iterators) : void { foreach ($iterators as $iterator) { - $iterator->rewind(); + } } /** @param \Iterator<mixed, mixed> ...$iterators */

Escaped Mutant for Mutator "Foreach_": --- Original +++ New @@ @@ /** @param \Iterator<mixed, mixed> ...$iterators */ public function valid(\Iterator ...$iterators) : bool { - foreach ($iterators as $iterator) { + foreach (array() as $iterator) { if (!$iterator->valid()) { return false; }

Escaped Mutant for Mutator "FalseValue": --- Original +++ New @@ @@ { foreach ($iterators as $iterator) { if (!$iterator->valid()) { - return false; + return true; } } return true;

Escaped Mutant for Mutator "Coalesce": --- Original +++ New @@ @@ public function __construct(private readonly PipelineRunnerInterface $runner, private readonly StateInterface $state, ?\Iterator $source = null) { $this->source = new \AppendIterator(); - $this->source->append($source ?? new \EmptyIterator()); + $this->source->append(new \EmptyIterator() ?? $source); $this->subject = new \NoRewindIterator($this->source); } public function feed(...$data) : void

Escaped Mutant for Mutator "MethodCallRemoval": --- Original +++ New @@ @@ public function __construct(private readonly PipelineRunnerInterface $runner, private readonly StateInterface $state, ?\Iterator $source = null) { $this->source = new \AppendIterator(); - $this->source->append($source ?? new \EmptyIterator()); + $this->subject = new \NoRewindIterator($this->source); } public function feed(...$data) : void

Escaped Mutant for Mutator "InstanceOf_": --- Original +++ New @@ @@ $extract = $extractor->extract(); if (\is_array($extract)) { $this->source->append($this->runner->run(new \ArrayIterator($extract), $this->passThroughCoroutine(), $rejection, $state)); - } elseif ($extract instanceof \Iterator) { + } elseif (true) { $this->source->append($this->runner->run($extract, $this->passThroughCoroutine(), $rejection, $state)); } elseif ($extract instanceof \Traversable) { $this->source->append($this->runner->run(new \IteratorIterator($extract), $this->passThroughCoroutine(), $rejection, $state));

Escaped Mutant for Mutator "InstanceOf_": --- Original +++ New @@ @@ $extract = $extractor->extract(); if (\is_array($extract)) { $this->source->append($this->runner->run(new \ArrayIterator($extract), $this->passThroughCoroutine(), $rejection, $state)); - } elseif ($extract instanceof \Iterator) { + } elseif (false) { $this->source->append($this->runner->run($extract, $this->passThroughCoroutine(), $rejection, $state)); } elseif ($extract instanceof \Traversable) { $this->source->append($this->runner->run(new \IteratorIterator($extract), $this->passThroughCoroutine(), $rejection, $state));

Escaped Mutant for Mutator "MethodCallRemoval": --- Original +++ New @@ @@ } public function walk() : \Iterator { - $this->state->initialize(); + yield from $this->subject; $this->state->teardown(); }