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<?php |
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namespace Digia\GraphQL\Language\Visitor; |
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use Digia\GraphQL\Language\Node\NodeInterface; |
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class VisitorInfo |
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{ |
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/** |
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* @var VisitorInterface |
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*/ |
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protected $visitor; |
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/** |
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* @var string|int|null |
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*/ |
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protected $key; |
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/** |
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* @var NodeInterface|null |
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*/ |
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protected $parent; |
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/** |
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* @var array |
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*/ |
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protected $path; |
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/** |
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* @var array |
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*/ |
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protected $ancestors; |
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/** |
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* VisitorInfo constructor. |
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* @param VisitorInterface $visitor |
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* @param int|null|string $key |
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* @param NodeInterface|null $parent |
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* @param array $path |
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* @param array $ancestors |
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*/ |
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public function __construct( |
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VisitorInterface $visitor, |
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$key = null, |
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?NodeInterface $parent = null, |
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array $path = [], |
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array $ancestors = [] |
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) { |
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$this->visitor = $visitor; |
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$this->key = $key; |
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$this->parent = $parent; |
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$this->path = $path; |
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$this->ancestors = $ancestors; |
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} |
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/** |
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* Appends a key to the path. |
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* @param string $key |
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*/ |
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public function addOneToPath(string $key) |
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{ |
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$this->path[] = $key; |
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} |
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/** |
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* Removes the last item from the path. |
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*/ |
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public function removeOneFromPath() |
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{ |
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$this->path = \array_slice($this->path, 0, -1); |
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} |
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/** |
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* Adds an ancestor. |
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* @param NodeInterface $node |
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*/ |
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public function addAncestor(NodeInterface $node) |
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{ |
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$this->ancestors[] = $node; |
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} |
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/** |
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* Removes the last ancestor. |
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*/ |
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public function removeAncestor() |
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{ |
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$this->ancestors = \array_slice($this->ancestors, 0, -1); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function getAncestor(int $depth = 1): ?NodeInterface |
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{ |
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if (empty($this->ancestors)) { |
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return null; |
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} |
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$index = \count($this->ancestors) - $depth; |
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return $this->ancestors[$index] ?? null; |
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} |
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/** |
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* @return VisitorInterface |
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*/ |
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public function getVisitor(): VisitorInterface |
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{ |
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return $this->visitor; |
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} |
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/** |
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* @return int|null|string |
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*/ |
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public function getKey() |
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{ |
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return $this->key; |
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} |
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/** |
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* @return NodeInterface|null |
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*/ |
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public function getParent(): ?NodeInterface |
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{ |
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return $this->parent; |
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} |
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/** |
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* @return array |
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*/ |
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public function getPath(): array |
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{ |
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return $this->path; |
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} |
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/** |
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* @return array |
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*/ |
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public function getAncestors(): array |
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{ |
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return $this->ancestors; |
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} |
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} |
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digiaonline /
graphql-php
