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<?php declare(strict_types = 1); |
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/** |
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* Created by Vitaly Iegorov <[email protected]>. |
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* on 20.08.16 at 12:39 |
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*/ |
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namespace samsonframework\container; |
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use samsonframework\container\resolver\ResolverInterface; |
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use samsonframework\filemanager\FileManagerInterface; |
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/** |
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* Annotation path class metadata collector. |
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* Class read files in specified paths, resolves and collects class metadata from annotations. |
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* |
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* @author Vitaly Egorov <[email protected]> |
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*/ |
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class AnnotationPathMetadataCollector extends AbstractMetadataCollector |
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{ |
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/** @var FileManagerInterface */ |
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protected $fileManager; |
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/** |
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* AnnotationPathMetadataCollector constructor. |
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* |
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* @param ResolverInterface $resolver |
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* @param FileManagerInterface $fileManager |
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*/ |
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public function __construct(ResolverInterface $resolver, FileManagerInterface $fileManager) |
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{ |
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$this->fileManager = $fileManager; |
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parent::__construct($resolver); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function collect($paths) : array |
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{ |
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/** @var array $paths */ |
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$classesMetadata = []; |
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// Iterate all paths and get files |
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foreach ($this->fileManager->scan($paths, ['php']) as $phpFile) { |
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require_once($phpFile); |
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// Read all classes in given file |
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foreach ($this->getDefinedClasses(file_get_contents($phpFile)) as $className) { |
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$classesMetadata[] = $this->resolver->resolve(new \ReflectionClass($className)); |
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} |
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} |
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return $classesMetadata; |
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} |
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/** |
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* Find class names defined in PHP code. |
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* |
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* @param string $php PHP code for scanning |
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* |
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* @return string[] Collection of found class names in php code |
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*/ |
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protected function getDefinedClasses(string $php) : array |
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{ |
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$classes = []; |
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$namespace = null; |
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// Append php marker for parsing file |
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$php = strpos(is_string($php) ? $php : '', '<?php') !== 0 ? '<?php ' . $php : $php; |
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$tokens = token_get_all($php); |
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for ($i = 2, $count = count($tokens); $i < $count; $i++) { |
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if ($tokens[$i - 2][0] === T_CLASS |
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&& $tokens[$i - 1][0] === T_WHITESPACE |
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&& $tokens[$i][0] === T_STRING |
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) { |
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$classes[] = $namespace ? $namespace . '\\' . $tokens[$i][1] : $tokens[$i][1]; |
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} elseif ($tokens[$i - 2][0] === T_NAMESPACE |
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&& $tokens[$i - 1][0] === T_WHITESPACE |
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&& $tokens[$i][0] === T_STRING |
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) { |
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while (isset($tokens[$i]) && is_array($tokens[$i])) { |
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$namespace .= $tokens[$i++][1]; |
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} |
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} |
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} |
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return $classes; |
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} |
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} |
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samsonframework /
container
In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: