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<?php |
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/** |
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* For the full copyright and license information, please view |
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* the LICENSE file that was distributed with this source code. |
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*/ |
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declare(strict_types=1); |
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namespace loophp\phptree\Importer; |
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use Exception; |
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use loophp\phptree\Node\AttributeNode; |
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use loophp\phptree\Node\AttributeNodeInterface; |
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use loophp\phptree\Node\NodeInterface; |
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use PhpParser\Node; |
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use function is_array; |
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/** |
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* Class NikicPhpParser. |
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*/ |
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final class NikicPhpParser implements ImporterInterface |
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{ |
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/** |
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* @param Node[] $data |
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* |
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* @throws Exception |
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*/ |
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public function import($data): NodeInterface |
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{ |
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return $this->parseNode($this->createNode(['label' => 'root']), ...$data); |
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} |
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private function createNode(array $attributes): AttributeNodeInterface |
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{ |
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return new AttributeNode($attributes); |
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} |
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/** |
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* @return array<int, Node> |
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*/ |
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private function getAllNodeChildren(Node $astNode): array |
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{ |
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/** @var array<int, array<int, Node>> $astNodes */ |
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$astNodes = array_map( |
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static function (string $subNodeName) use ($astNode): array { |
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$subNodes = $astNode->{$subNodeName}; |
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if (!is_array($subNodes)) { |
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$subNodes = [$subNodes]; |
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} |
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return array_filter( |
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$subNodes, |
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'is_object' |
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); |
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}, |
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$astNode->getSubNodeNames() |
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); |
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return [] === $astNodes ? |
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[] : |
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array_merge(...$astNodes); |
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} |
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/** |
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* @param Node ...$astNodes |
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*/ |
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private function parseNode(AttributeNodeInterface $parent, Node ...$astNodes): NodeInterface |
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{ |
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return array_reduce( |
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$astNodes, |
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function (AttributeNodeInterface $carry, Node $astNode): NodeInterface { |
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return $carry |
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->add( |
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$this->parseNode( |
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$this->createNode([ |
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'label' => $astNode->getType(), |
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'astNode' => $astNode, |
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]), |
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...$this->getAllNodeChildren($astNode) |
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) |
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); |
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}, |
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$parent |
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); |
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} |
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} |
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loophp /
phptree
