ClassFilesSniff.php in Coder 8.3

Namespace

Drupal\Sniffs\InfoFiles

File

coder_sniffer/Drupal/Sniffs/InfoFiles/ClassFilesSniff.php

<?php

/**
 * \Drupal\Sniffs\InfoFiles\ClassFilesSniff.
 *
 * @category PHP
 * @package  PHP_CodeSniffer
 * @link     http://pear.php.net/package/PHP_CodeSniffer
 */
namespace Drupal\Sniffs\InfoFiles;

use PHP_CodeSniffer\Files\File;
use PHP_CodeSniffer\Sniffs\Sniff;

/**
 * Checks files[] entries in info files. Only files containing classes/interfaces
 * should be listed.
 *
 * @category PHP
 * @package  PHP_CodeSniffer
 * @link     http://pear.php.net/package/PHP_CodeSniffer
 */
class ClassFilesSniff implements Sniff {

  /**
   * Returns an array of tokens this test wants to listen for.
   *
   * @return array<int|string>
   */
  public function register() {
    return [
      T_INLINE_HTML,
    ];
  }

  //end register()

  /**
   * Processes this test, when one of its tokens is encountered.
   *
   * @param \PHP_CodeSniffer\Files\File $phpcsFile The file being scanned.
   * @param int                         $stackPtr  The position of the current token in the
   *                                               stack passed in $tokens.
   *
   * @return int
   */
  public function process(File $phpcsFile, $stackPtr) {

    // Only run this sniff once per info file.
    $fileExtension = strtolower(substr($phpcsFile
      ->getFilename(), -4));
    if ($fileExtension !== 'info') {
      return $phpcsFile->numTokens + 1;
    }
    $contents = file_get_contents($phpcsFile
      ->getFilename());
    $info = self::drupalParseInfoFormat($contents);
    if (isset($info['files']) === true && is_array($info['files']) === true) {
      foreach ($info['files'] as $file) {
        $fileName = dirname($phpcsFile
          ->getFilename()) . '/' . $file;
        if (file_exists($fileName) === false) {

          // We need to find the position of the offending line in the
          // info file.
          $ptr = self::getPtr('files[]', $file, $phpcsFile);
          $error = 'Declared file was not found';
          $phpcsFile
            ->addError($error, $ptr, 'DeclaredFileNotFound');
          continue;
        }

        // Read the file, parse its tokens and check if it actually contains
        // a class or interface definition.
        $searchTokens = token_get_all(file_get_contents($fileName));
        foreach ($searchTokens as $token) {
          if (is_array($token) === true && in_array($token[0], [
            T_CLASS,
            T_INTERFACE,
            T_TRAIT,
          ]) === true) {
            continue 2;
          }
        }
        $ptr = self::getPtr('files[]', $file, $phpcsFile);
        $error = "It's only necessary to declare files[] if they declare a class or interface.";
        $phpcsFile
          ->addError($error, $ptr, 'UnecessaryFileDeclaration');
      }

      //end foreach
    }

    //end if
    return $phpcsFile->numTokens + 1;
  }

  //end process()

  /**
   * Helper function that returns the position of the key in the info file.
   *
   * @param string                      $key      Key name to search for.
   * @param string                      $value    Corresponding value to search for.
   * @param \PHP_CodeSniffer\Files\File $infoFile Info file to search in.
   *
   * @return int|false Returns the stack position if the file name is found, false
   *                                      otherwise.
   */
  public static function getPtr($key, $value, File $infoFile) {
    foreach ($infoFile
      ->getTokens() as $ptr => $tokenInfo) {
      if (preg_match('@^[\\s]*' . preg_quote($key) . '[\\s]*=[\\s]*["\']?' . preg_quote($value) . '["\']?@', $tokenInfo['content']) === 1) {
        return $ptr;
      }
    }
    return false;
  }

  //end getPtr()

  /**
   * Parses a Drupal info file. Copied from Drupal core drupal_parse_info_format().
   *
   * @param string $data The contents of the info file to parse
   *
   * @return array<mixed> The info array.
   */
  public static function drupalParseInfoFormat($data) {
    $info = [];
    $constants = get_defined_constants();
    if (preg_match_all('
          @^\\s*                           # Start at the beginning of a line, ignoring leading whitespace
          ((?:
            [^=;\\[\\]]|                    # Key names cannot contain equal signs, semi-colons or square brackets,
            \\[[^\\[\\]]*\\]                  # unless they are balanced and not nested
          )+?)
          \\s*=\\s*                         # Key/value pairs are separated by equal signs (ignoring white-space)
          (?:
            ("(?:[^"]|(?<=\\\\)")*")|     # Double-quoted string, which may contain slash-escaped quotes/slashes
            (\'(?:[^\']|(?<=\\\\)\')*\')| # Single-quoted string, which may contain slash-escaped quotes/slashes
            ([^\\r\\n]*?)                   # Non-quoted string
          )\\s*$                           # Stop at the next end of a line, ignoring trailing whitespace
          @msx', $data, $matches, PREG_SET_ORDER) !== false) {
      foreach ($matches as $match) {

        // Fetch the key and value string.
        $i = 0;
        foreach ([
          'key',
          'value1',
          'value2',
          'value3',
        ] as $var) {
          if (isset($match[++$i]) === true) {
            ${$var} = $match[$i];
          }
          else {
            ${$var} = '';
          }
        }
        $value = stripslashes(substr($value1, 1, -1)) . stripslashes(substr($value2, 1, -1)) . $value3;

        // Parse array syntax.
        $keys = preg_split('/\\]?\\[/', rtrim($key, ']'));
        $last = array_pop($keys);
        $parent =& $info;

        // Create nested arrays.
        foreach ($keys as $key) {
          if ($key === '') {
            $key = count($parent);
          }
          if (isset($parent[$key]) === false || is_array($parent[$key]) === false) {
            $parent[$key] = [];
          }
          $parent =& $parent[$key];
        }

        // Handle PHP constants.
        if (isset($constants[$value]) === true) {
          $value = $constants[$value];
        }

        // Insert actual value.
        if ($last === '') {
          $last = count($parent);
        }
        $parent[$last] = $value;
      }

      //end foreach
    }

    //end if
    return $info;
  }

}

//end class

Classes

Name	Description
ClassFilesSniff	Checks files[] entries in info files. Only files containing classes/interfaces should be listed.