SpaceUnaryOperatorSniff.php in Coder 7.2

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coder_sniffer/Drupal/Sniffs/Formatting/SpaceUnaryOperatorSniff.php

<?php

/**
 * Drupal_Sniffs_Formatting_SpaceUnaryOperatorSniff.
 *
 * PHP version 5
 *
 * @category PHP
 * @package  PHP_CodeSniffer
 * @link     http://pear.php.net/package/PHP_CodeSniffer
 */

/**
 * Drupal_Sniffs_Formatting_SpaceUnaryOperatorSniff.
 *
 * Ensures there are no spaces on increment / decrement statements or on +/- sign
 * operators or "!" boolean negators.
 *
 * @category PHP
 * @package  PHP_CodeSniffer
 * @link     http://pear.php.net/package/PHP_CodeSniffer
 */
class Drupal_Sniffs_Formatting_SpaceUnaryOperatorSniff implements PHP_CodeSniffer_Sniff {

  /**
   * Returns an array of tokens this test wants to listen for.
   *
   * @return array
   */
  public function register() {
    return array(
      T_DEC,
      T_INC,
      T_MINUS,
      T_PLUS,
      T_BOOLEAN_NOT,
    );
  }

  //end register()

  /**
   * Processes this test, when one of its tokens is encountered.
   *
   * @param PHP_CodeSniffer_File $phpcsFile The file being scanned.
   * @param int                  $stackPtr  The position of the current token in
   *                                        the stack passed in $tokens.
   *
   * @return void
   */
  public function process(PHP_CodeSniffer_File $phpcsFile, $stackPtr) {
    $tokens = $phpcsFile
      ->getTokens();

    // Check decrement / increment.
    if ($tokens[$stackPtr]['code'] === T_DEC || $tokens[$stackPtr]['code'] === T_INC) {
      $modifyLeft = substr($tokens[$stackPtr - 1]['content'], 0, 1) === '$' || $tokens[$stackPtr + 1]['content'] === ';';
      if ($modifyLeft === true && $tokens[$stackPtr - 1]['code'] === T_WHITESPACE) {
        $error = 'There must not be a single space before a unary operator statement';
        $phpcsFile
          ->addError($error, $stackPtr, 'IncDecLeft');
        return;
      }
      if ($modifyLeft === false && substr($tokens[$stackPtr + 1]['content'], 0, 1) !== '$') {
        $error = 'A unary operator statement must not be followed by a single space';
        $phpcsFile
          ->addError($error, $stackPtr, 'IncDecRight');
        return;
      }
    }

    // Check "!" operator.
    if ($tokens[$stackPtr]['code'] === T_BOOLEAN_NOT && $tokens[$stackPtr + 1]['code'] === T_WHITESPACE) {
      $error = 'A unary operator statement must not be followed by a space';
      $phpcsFile
        ->addError($error, $stackPtr, 'BooleanNot');
      return;
    }

    // Find the last syntax item to determine if this is an unary operator.
    $lastSyntaxItem = $phpcsFile
      ->findPrevious(array(
      T_WHITESPACE,
    ), $stackPtr - 1, $tokens[$stackPtr]['column'] * -1, true, null, true);
    $operatorSuffixAllowed = in_array($tokens[$lastSyntaxItem]['code'], array(
      T_LNUMBER,
      T_DNUMBER,
      T_CLOSE_PARENTHESIS,
      T_CLOSE_CURLY_BRACKET,
      T_CLOSE_SQUARE_BRACKET,
      T_VARIABLE,
      T_STRING,
    ));

    // Check plus / minus value assignments or comparisons.
    if ($tokens[$stackPtr]['code'] === T_MINUS || $tokens[$stackPtr]['code'] === T_PLUS) {
      if ($operatorSuffixAllowed === false && $tokens[$stackPtr + 1]['code'] === T_WHITESPACE) {
        $error = 'A unary operator statement must not be followed by a space';
        $phpcsFile
          ->addError($error, $stackPtr);
      }
    }
  }

}

//end class

Classes

Name	Description
Drupal_Sniffs_Formatting_SpaceUnaryOperatorSniff	Drupal_Sniffs_Formatting_SpaceUnaryOperatorSniff.