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<?php |
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/** |
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* @link https://github.com/nnx-framework/form-comparator |
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* @author Malofeykin Andrey <[email protected]> |
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*/ |
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namespace Nnx\FormComparator\Comparator; |
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use Nnx\FormComparator\Comparator\CollectionDiffService\HashElementBuilder; |
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use Webmozart\Assert\Assert; |
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use Zend\Form\Element\Collection; |
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use Zend\Form\ElementInterface; |
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/** |
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* Class CollectionDiffService |
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* |
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* @package Nnx\FormComparator\Comparator |
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*/ |
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class CollectionDiffService |
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{ |
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/** |
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* Компоент отвечающий за подготовку хеша элемента |
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* |
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* @var HashElementBuilder |
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*/ |
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private $hashElementBuilder; |
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/** |
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* Возвращает компоент отвечающий за подготовку хеша элемента |
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* |
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* @return HashElementBuilder |
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*/ |
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public function getHashElementBuilder() |
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{ |
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if (null === $this->hashElementBuilder) { |
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$this->hashElementBuilder = new HashElementBuilder(); |
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} |
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return $this->hashElementBuilder; |
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} |
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/** |
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* Устанавливает компоент отвечающий за подготовку хеша элемента |
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* |
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* @param HashElementBuilder $hashElementBuilder |
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* |
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* @return $this |
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*/ |
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public function setHashElementBuilder(HashElementBuilder $hashElementBuilder) |
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{ |
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$this->hashElementBuilder = $hashElementBuilder; |
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return $this; |
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} |
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/** |
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* Получение расхождения элементов меджу двумя коллекциями |
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* |
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* @param Collection $sourceCollection |
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* @param Collection $targetCollection |
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* |
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* @param $prefixPath |
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* |
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* @return mixed |
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* @throws \Nnx\FormComparator\Comparator\CollectionDiffService\Exception\RuntimeException |
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*/ |
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public function buildDiff(Collection $sourceCollection, Collection $targetCollection, $prefixPath) |
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{ |
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Assert::string($prefixPath); |
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Assert::notEmpty($prefixPath); |
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$sourceCollectionElementsHash = $this->buildHashForCollectionElements($sourceCollection); |
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$targetCollectionElementsHash = $this->buildHashForCollectionElements($targetCollection); |
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return; |
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} |
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/** |
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* @param Collection $collection |
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* |
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* |
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* @return array |
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* @throws \Nnx\FormComparator\Comparator\CollectionDiffService\Exception\RuntimeException |
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*/ |
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protected function buildHashForCollectionElements(Collection $collection) |
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{ |
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$order = 0; |
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$hashForCollectionElements = []; |
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$hashElementBuilder = $this->getHashElementBuilder(); |
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foreach ($collection->getIterator() as $elementOrFieldset) { |
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/** @var ElementInterface $elementOrFieldset */ |
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Assert::isInstanceOf($elementOrFieldset, ElementInterface::class); |
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$hashForCollectionElements[$order] = $hashElementBuilder->hash($elementOrFieldset); |
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$order++; |
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} |
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return $hashForCollectionElements; |
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} |
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} |
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This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.
Both the
$myVar
assignment in line 1 and the$higher
assignment in line 2 are dead. The first because$myVar
is never used and the second because$higher
is always overwritten for every possible time line.