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<?php |
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namespace PhpUnitGen\Parser\NodeParser; |
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use PhpParser\Node; |
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use PhpUnitGen\Exception\NodeParserException; |
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use PhpUnitGen\Model\PropertyInterface\NodeInterface; |
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use PhpUnitGen\Parser\NodeParser\NodeParserInterface\NodeParserInterface; |
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use Respect\Validation\Validator; |
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/** |
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* Class AbstractNodeParser. |
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* |
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* @author Paul Thébaud <[email protected]>. |
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* @copyright 2017-2018 Paul Thébaud <[email protected]>. |
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* @license https://opensource.org/licenses/MIT The MIT license. |
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* @link https://github.com/paul-thebaud/phpunit-generator |
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* @since Class available since Release 2.0.0. |
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*/ |
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abstract class AbstractNodeParser implements NodeParserInterface |
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{ |
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/** |
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* @var NodeParserInterface[] $nodeParsers Mapping array between PhpParser node class and PhpUnitGen node parser. |
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*/ |
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protected $nodeParsers = []; |
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/** |
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* {@inheritdoc} |
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* |
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* The abstract node parser is used with implementation of <NodeName>NodeParserInterface, so it must have the |
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* invoke method from them. |
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* If the invoke method does not exists, or if the parameter class does not match, it is an implementation error. |
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*/ |
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public function parse(Node $node, NodeInterface $parent): NodeInterface |
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{ |
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if (! method_exists($this, 'invoke')) { |
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throw new NodeParserException(sprintf( |
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'Class "%s" must implements method invoke described in AbstractNodeParser', |
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get_class($this) |
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)); |
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} |
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return $parent = $this->invoke($node, $parent); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function parseSubNodes(array $nodes, NodeInterface $parent): NodeInterface |
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{ |
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foreach ($nodes as $node) { |
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// Get the node class |
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$class = get_class($node); |
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// If a node parser exists |
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if ($this->hasNodeParser($class)) { |
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// Parse the node |
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$parent = $this->getNodeParser($class)->parse($node, $parent); |
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} |
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} |
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return $parent; |
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} |
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/** |
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* Check if this node parser instance has a node parser. |
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* |
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* @param string $class The node parser for this class. |
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* |
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* @return bool True if the node parser exists. |
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*/ |
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protected function hasNodeParser(string $class): bool |
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{ |
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if (Validator::key($class, Validator::instance(NodeParserInterface::class)) |
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->validate($this->nodeParsers)) { |
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return true; |
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} |
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return false; |
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} |
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/** |
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* Get a node parser. |
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* |
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* @param string $class The node parser for this class. |
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* |
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* @return NodeParserInterface The node parser. |
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* |
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* @throws NodeParserException If the node parser does not exists. |
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*/ |
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protected function getNodeParser(string $class): NodeParserInterface |
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{ |
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if ($this->hasNodeParser($class)) { |
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return $this->nodeParsers[$class]; |
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} |
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throw new NodeParserException(sprintf('The node parser for "%s" cannot be found.', $class)); |
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} |
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} |
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paul-thebaud /
phpunit-generator
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