. */ namespace Doctrine\Common\Annotations; use SplFileObject; /** * Parses a file for namespaces/use/class declarations. * * @author Fabien Potencier * @author Christian Kaps */ final class PhpParser { /** * Parses a class. * * @param \ReflectionClass $class A ReflectionClass object. * * @return array A list with use statements in the form (Alias => FQN). */ public function parseClass(\ReflectionClass $class) { if (method_exists($class, 'getUseStatements')) { return $class->getUseStatements(); } if (false === $filename = $class->getFileName()) { return array(); } $content = $this->getFileContent($filename, $class->getStartLine()); if (null === $content) { return array(); } $namespace = preg_quote($class->getNamespaceName()); $content = preg_replace('/^.*?(\bnamespace\s+' . $namespace . '\s*[;{].*)$/s', '\\1', $content); $tokenizer = new TokenParser('parseUseStatements($class->getNamespaceName()); return $statements; } /** * Gets the content of the file right up to the given line number. * * @param string $filename The name of the file to load. * @param integer $lineNumber The number of lines to read from file. * * @return string|null The content of the file or null if the file does not exist. */ private function getFileContent($filename, $lineNumber) { if ( ! is_file($filename)) { return null; } $content = ''; $lineCnt = 0; $file = new SplFileObject($filename); while (!$file->eof()) { if ($lineCnt++ == $lineNumber) { break; } $content .= $file->fgets(); } return $content; } }