diff options
Diffstat (limited to 'vendor/myclabs/deep-copy/src/DeepCopy/TypeFilter/Spl/SplDoublyLinkedListFilter.php')
-rw-r--r-- | vendor/myclabs/deep-copy/src/DeepCopy/TypeFilter/Spl/SplDoublyLinkedListFilter.php | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/vendor/myclabs/deep-copy/src/DeepCopy/TypeFilter/Spl/SplDoublyLinkedListFilter.php b/vendor/myclabs/deep-copy/src/DeepCopy/TypeFilter/Spl/SplDoublyLinkedListFilter.php new file mode 100644 index 000000000..c33be4580 --- /dev/null +++ b/vendor/myclabs/deep-copy/src/DeepCopy/TypeFilter/Spl/SplDoublyLinkedListFilter.php @@ -0,0 +1,51 @@ +<?php + +namespace DeepCopy\TypeFilter\Spl; + +use Closure; +use DeepCopy\DeepCopy; +use DeepCopy\TypeFilter\TypeFilter; +use SplDoublyLinkedList; + +/** + * @final + */ +class SplDoublyLinkedListFilter implements TypeFilter +{ + private $copier; + + public function __construct(DeepCopy $copier) + { + $this->copier = $copier; + } + + /** + * {@inheritdoc} + */ + public function apply($element) + { + $newElement = clone $element; + + $copy = $this->createCopyClosure(); + + return $copy($newElement); + } + + private function createCopyClosure() + { + $copier = $this->copier; + + $copy = function (SplDoublyLinkedList $list) use ($copier) { + // Replace each element in the list with a deep copy of itself + for ($i = 1; $i <= $list->count(); $i++) { + $copy = $copier->recursiveCopy($list->shift()); + + $list->push($copy); + } + + return $list; + }; + + return Closure::bind($copy, null, DeepCopy::class); + } +} |