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<?php |
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namespace Bdf\Form\Aggregate\Collection; |
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use Bdf\Form\Child\ChildInterface; |
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use Iterator; |
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/** |
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* Iterate over @see DependencyTree |
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* |
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* Iterate first on the last level, and go to lower levels, to root |
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*/ |
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final class DependencyIterator implements Iterator |
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{ |
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/** |
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* @var ChildInterface[] |
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*/ |
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private $children; |
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/** |
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* @var Level |
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*/ |
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private $first; |
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/** |
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* @var bool |
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*/ |
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private $reverse; |
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/** |
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* @var Level|null |
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*/ |
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private $currentLevel; |
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/** |
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* @var Iterator|null |
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*/ |
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private $levelIterator; |
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/** |
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* DependencyIterator constructor. |
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* |
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* @param ChildInterface[] $children |
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* @param Level $first |
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* @param bool $reverse Does iterate on reverse order on levels ? |
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*/ |
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public function __construct(array $children, Level $first, $reverse = true) |
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{ |
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$this->children = $children; |
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$this->first = $first; |
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$this->reverse = $reverse; |
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} |
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/** |
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* {@inheritdoc} |
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* |
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* @return ChildInterface |
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*/ |
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public function current() |
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{ |
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return $this->children[$this->key()]; |
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} |
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/** |
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* {@inheritdoc} |
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* |
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* @psalm-suppress PossiblyNullReference |
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* @psalm-suppress PossiblyNullReference |
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*/ |
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public function next() |
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{ |
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$this->levelIterator->next(); |
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// The level iterator can be invalid if the level is empty |
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// We need to skip empty levels |
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while (!$this->levelIterator->valid()) { |
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$this->levelIterator = null; |
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$this->currentLevel = $this->reverse ? $this->currentLevel->prev() : $this->currentLevel->next(); |
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// There is no more level, the iterator will be "invalid" |
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if ($this->currentLevel === null) { |
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return; |
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} |
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// Create the new iterator, and reset |
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$this->levelIterator = $this->currentLevel->getIterator(); |
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$this->levelIterator->rewind(); |
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} |
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// The children is not already registered |
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// We should skip this step |
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if (!isset($this->children[$this->key()])) { |
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$this->next(); |
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} |
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} |
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/** |
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* {@inheritdoc} |
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* |
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* @psalm-suppress PossiblyNullReference |
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*/ |
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public function key() |
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{ |
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return $this->levelIterator->key(); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function valid() |
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{ |
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return $this->levelIterator !== null && $this->levelIterator->valid(); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function rewind() |
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{ |
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$this->currentLevel = $this->first; |
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$this->levelIterator = $this->currentLevel->getIterator(); |
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$this->levelIterator->rewind(); |
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// The child is not registered, we should go next |
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// Or the iterator is not valid |
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if ( |
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!$this->levelIterator->valid() |
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|| !isset($this->children[$this->key()]) |
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) { |
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$this->next(); |
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} |
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} |
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} |
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b2pweb /
bdf-form
Loading history...
This check looks for calls to methods that do not seem to exist on a given type. It looks for the method on the type itself as well as in inherited classes or implemented interfaces.
This is most likely a typographical error or the method has been renamed.