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<?php |
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namespace PhpUnitGen\Parser; |
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use PhpParser\Error; |
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use PhpParser\Node; |
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use PhpParser\Parser; |
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use PhpUnitGen\Exception\ParsingException; |
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use PhpUnitGen\Model\ModelInterface\PhpFileModelInterface; |
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use PhpUnitGen\Model\PhpFileModel; |
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use PhpUnitGen\Model\PropertyInterface\NodeInterface; |
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use PhpUnitGen\Parser\NodeParser\InterfaceNodeParser; |
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use PhpUnitGen\Parser\NodeParser\NamespaceNodeParser; |
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use PhpUnitGen\Parser\NodeParser\NodeParserInterface; |
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use PhpUnitGen\Parser\NodeParser\UseNodeParser; |
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use PhpUnitGen\Parser\ParserInterface\PhpFileParserInterface; |
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use Respect\Validation\Validator; |
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/** |
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* Class PhpFileParser. |
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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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class PhpFileParser implements PhpFileParserInterface |
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{ |
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/** |
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* @var Parser $phpParser A parser to parse php code as a string. |
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*/ |
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private $phpParser; |
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/** |
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* @var NodeParserInterface[] $nodeParsers Mapping array between node class and node parser. |
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*/ |
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private $nodeParsers = []; |
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/** |
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* @var string[] $nodeChildrenParsingNeeded Array containing node type that need . |
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*/ |
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private $nodeChildrenParsingNeeded = []; |
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/** |
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* PhpFileParser constructor. |
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* |
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* @param Parser $phpParser |
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*/ |
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public function __construct( |
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Parser $phpParser |
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) { |
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$this->phpParser = $phpParser; |
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$this->nodeParsers = [ |
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Node\Stmt\Namespace_::class => new NamespaceNodeParser(), |
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Node\Stmt\Use_::class => new UseNodeParser(), |
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Node\Stmt\Function_::class => null, |
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Node\Stmt\Interface_::class => new InterfaceNodeParser(), |
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Node\Stmt\Trait_::class => null, |
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Node\Stmt\Class_::class => null |
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]; |
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$this->nodeChildrenParsingNeeded = [ |
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Node\Stmt\Namespace_::class, |
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Node\Stmt\Interface_::class, |
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Node\Stmt\Trait_::class, |
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Node\Stmt\Class_::class |
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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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public function parse(string $code): PhpFileModelInterface |
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{ |
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try { |
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$nodes = $this->phpParser->parse($code); |
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} catch (Error $error) { |
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throw new ParsingException("Unable to parse given php code (maybe your code contains errors)."); |
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} |
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/** @var PhpFileModelInterface $phpFileModel */ |
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$phpFileModel = new PhpFileModel(); |
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$phpFileModel = $this->parseNodes($nodes, $phpFileModel); |
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return $phpFileModel; |
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} |
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/** |
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* Parse nodes recursively if $nodes is validate as an array. |
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* |
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* @param mixed $nodesToParse Nodes to parse. |
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* @param NodeInterface $node The node to inject parsed information in. |
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* |
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* @return NodeInterface The modified php file model. |
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*/ |
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private function parseNodes($nodesToParse, NodeInterface $node): NodeInterface |
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{ |
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if (Validator::arrayType()->length(1, null)->validate($nodesToParse)) { |
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foreach ($nodesToParse as $nodeToParse) { |
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$node = $this->parseNode($nodeToParse, $node); |
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} |
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} |
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return $node; |
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} |
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/** |
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* Parse a node and statements recursively and inject information if possible. |
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* |
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* @param Node $nodeToParse The node to parse. |
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* @param NodeInterface $node The node to inject parsed information in. |
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* |
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* @return NodeInterface The modified php file model. |
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*/ |
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private function parseNode(Node $nodeToParse, NodeInterface $node): NodeInterface |
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{ |
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$children = []; |
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$resultingNode = $node; |
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// Find the type of the node |
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$class = get_class($nodeToParse); |
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if (Validator::key($class, Validator::instance(NodeParserInterface::class)) |
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->validate($this->nodeParsers) |
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) { |
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$resultingNode = ($this->nodeParsers[$class])->parse($nodeToParse, $resultingNode); |
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// Check if we need to parse children of the node. |
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if (Validator::contains($class)->validate($this->nodeChildrenParsingNeeded)) { |
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return $this->parseNodes($children, $resultingNode); |
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} |
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} |
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return $resultingNode; |
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} |
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} |
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paul-thebaud /
phpunit-generator
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