class FileInspector in X Autoload 7.4

Hierarchy

• class \Drupal\xautoload\Discovery\FileInspector

File

lib/Discovery/FileInspector.php, line 7

Namespace

Drupal\xautoload\Discovery

class FileInspector {

  /**
   * @param string $path
   * @return string[]
   * @throws RuntimeException
   */
  static function inspectPhpFile($path) {
    try {
      $contents = php_strip_whitespace($path);
    } catch (\Exception $e) {
      throw new \RuntimeException('Could not scan for classes inside ' . $path . ": \n" . $e
        ->getMessage(), 0, $e);
    }
    return self::inspectFileContents($contents);
  }

  /**
   * @param string $contents
   *   The PHP file contents obtained with php_strip_whitespace($path).
   *
   * @return string[]
   *   Classes discovered in the file.
   */
  protected static function inspectFileContents($contents) {
    $traits = version_compare(PHP_VERSION, '5.4', '<') ? '' : '|trait';

    // return early if there is no chance of matching anything in this file
    if (!preg_match('{\\b(?:class|interface' . $traits . ')\\s}i', $contents)) {
      return array();
    }

    // strip heredocs/nowdocs
    $contents = preg_replace('{<<<\'?(\\w+)\'?(?:\\r\\n|\\n|\\r)(?:.*?)(?:\\r\\n|\\n|\\r)\\1(?=\\r\\n|\\n|\\r|;)}s', 'null', $contents);

    // strip strings
    $contents = preg_replace('{"[^"\\\\]*(\\\\.[^"\\\\]*)*"|\'[^\'\\\\]*(\\\\.[^\'\\\\]*)*\'}s', 'null', $contents);

    // strip leading non-php code if needed
    if (substr($contents, 0, 2) !== '<?') {
      $contents = preg_replace('{^.+?<\\?}s', '<?', $contents);
    }

    // strip non-php blocks in the file
    $contents = preg_replace('{\\?>.+<\\?}s', '?><?', $contents);

    // strip trailing non-php code if needed
    $pos = strrpos($contents, '?>');
    if (FALSE !== $pos && FALSE === strpos(substr($contents, $pos), '<?')) {
      $contents = substr($contents, 0, $pos);
    }
    preg_match_all('{
                  (?:
                       \\b(?<![\\$:>])(?P<type>class|interface' . $traits . ') \\s+ (?P<name>[a-zA-Z_\\x7f-\\xff][a-zA-Z0-9_\\x7f-\\xff]*)
               | \\b(?<![\\$:>])(?P<ns>namespace) (?P<nsname>\\s+[a-zA-Z_\\x7f-\\xff][a-zA-Z0-9_\\x7f-\\xff]*(?:\\s*\\\\\\s*[a-zA-Z_\\x7f-\\xff][a-zA-Z0-9_\\x7f-\\xff]*)*)? \\s*[\\{;]
            )
        }ix', $contents, $matches);
    $classes = array();
    $namespace = '';
    for ($i = 0, $len = count($matches['type']); $i < $len; $i++) {
      if (!empty($matches['ns'][$i])) {
        $namespace = str_replace(array(
          ' ',
          "\t",
          "\r",
          "\n",
        ), '', $matches['nsname'][$i]) . '\\';
      }
      else {
        $classes[] = ltrim($namespace . $matches['name'][$i], '\\');
      }
    }
    return $classes;
  }

}

Members

Name	Modifiers	Type	Description	Overrides
FileInspector::inspectFileContents	protected static	function
FileInspector::inspectPhpFile	static	function