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<?php |
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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 SplObjectStorage; |
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use function get_class; |
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use function is_array; |
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final class NikicPhpParserImporter implements ImporterInterface |
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{ |
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/** |
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* @var SplObjectStorage |
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*/ |
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private $nodeMap; |
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public function __construct() |
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{ |
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$this->nodeMap = new SplObjectStorage(); |
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} |
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/** |
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* @param Node[] $data |
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* |
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* @throws Exception |
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* |
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* @return \loophp\phptree\Node\NodeInterface |
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*/ |
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public function import($data): NodeInterface |
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{ |
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return (new AttributeNode(['label' => 'root'])) |
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->add(...$this->parseNodes($data)); |
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} |
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/** |
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* @param \PhpParser\Node $astNode |
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* |
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* @return array<int, Node> |
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*/ |
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private function getNodeChildren(Node $astNode): array |
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{ |
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$subNodeNames = $astNode->getSubNodeNames(); |
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$nodes = []; |
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foreach ($subNodeNames as $subNodeName) { |
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$subNodes = $astNode->{$subNodeName}; |
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if (!is_array($subNodes)) { |
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$subNodes = [$subNodes]; |
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} |
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foreach ($subNodes as $subNode) { |
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if (false === ($subNode instanceof Node)) { |
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continue; |
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} |
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$nodes[] = $subNode; |
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} |
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} |
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return $nodes; |
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} |
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/** |
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* @param \PhpParser\Node $astNode |
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* |
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* @throws \Exception |
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* |
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* @return AttributeNodeInterface |
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*/ |
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private function parseNode(Node $astNode): AttributeNodeInterface |
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{ |
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$attributes = [ |
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'label' => sprintf('%s', $astNode->getType()), |
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'type' => $astNode->getType(), |
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'class' => get_class($astNode), |
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'shape' => 'rect', |
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'astNode' => $astNode, |
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]; |
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return (new AttributeNode($attributes)) |
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->add(...$this->parseNodes($this->getNodeChildren($astNode))); |
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} |
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/** |
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* @param Node[] $astNodes |
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* |
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* @throws \Exception |
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* |
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* @return AttributeNodeInterface[] |
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*/ |
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private function parseNodes(array $astNodes): array |
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{ |
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$treeNodes = []; |
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foreach ($astNodes as $node) { |
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if (false === $this->nodeMap->contains($node)) { |
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$treeNode = $this->parseNode($node); |
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$treeNode->setAttribute('astNode', $node); |
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$this->nodeMap->attach($node, $treeNode); |
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} |
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$treeNodes[] = $this->nodeMap->offsetGet($node); |
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} |
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return $treeNodes; |
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} |
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} |
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loophp /
phptree
