SpaceUnaryOperatorSniff.php in Coder 8.3

Namespace

Drupal\Sniffs\Formatting

File

coder_sniffer/Drupal/Sniffs/Formatting/SpaceUnaryOperatorSniff.php

<?php

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

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

/**
 * \PHP_CodeSniffer\Standards\Generic\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 SpaceUnaryOperatorSniff implements Sniff {

  /**
   * Returns an array of tokens this test wants to listen for.
   *
   * @return array<int|string>
   */
  public function register() {
    return [
      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\Files\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(File $phpcsFile, $stackPtr) {
    $tokens = $phpcsFile
      ->getTokens();

    // Check decrement / increment.
    if ($tokens[$stackPtr]['code'] === T_DEC || $tokens[$stackPtr]['code'] === T_INC) {
      $previous = $phpcsFile
        ->findPrevious(Tokens::$emptyTokens, $stackPtr - 1, null, true);
      $modifyLeft = in_array($tokens[$previous]['code'], [
        T_VARIABLE,
        T_CLOSE_SQUARE_BRACKET,
        T_CLOSE_PARENTHESIS,
        T_STRING,
      ]);
      if ($modifyLeft === true && $tokens[$stackPtr - 1]['code'] === T_WHITESPACE) {
        $error = 'There must not be a single space before a unary operator statement';
        $fix = $phpcsFile
          ->addFixableError($error, $stackPtr, 'IncDecLeft');
        if ($fix === true) {
          $phpcsFile->fixer
            ->replaceToken($stackPtr - 1, '');
        }
        return;
      }
      if ($modifyLeft === false && $tokens[$stackPtr + 1]['code'] === T_WHITESPACE) {
        $error = 'A unary operator statement must not be followed by a single space';
        $fix = $phpcsFile
          ->addFixableError($error, $stackPtr, 'IncDecRight');
        if ($fix === true) {
          $phpcsFile->fixer
            ->replaceToken($stackPtr + 1, '');
        }
        return;
      }
    }

    //end if

    // 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';
      $fix = $phpcsFile
        ->addFixableError($error, $stackPtr, 'BooleanNot');
      if ($fix === true) {
        $phpcsFile->fixer
          ->replaceToken($stackPtr + 1, '');
      }
      return;
    }

    // Find the last syntax item to determine if this is an unary operator.
    $lastSyntaxItem = $phpcsFile
      ->findPrevious([
      T_WHITESPACE,
    ], $stackPtr - 1, $tokens[$stackPtr]['column'] * -1, true, null, true);
    $operatorSuffixAllowed = in_array($tokens[$lastSyntaxItem]['code'], [
      T_LNUMBER,
      T_DNUMBER,
      T_CLOSE_PARENTHESIS,
      T_CLOSE_CURLY_BRACKET,
      T_CLOSE_SQUARE_BRACKET,
      T_CLOSE_SHORT_ARRAY,
      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';
        $fix = $phpcsFile
          ->addFixableError($error, $stackPtr, 'PlusMinus');
        if ($fix === true) {
          $phpcsFile->fixer
            ->replaceToken($stackPtr + 1, '');
        }
      }
    }
  }

}

//end class

Classes

Name	Description
SpaceUnaryOperatorSniff	\PHP_CodeSniffer\Standards\Generic\Sniffs\Formatting\SpaceUnaryOperatorSniff.