Source for file DuplicateClassDefinitionSniff.php
Documentation is available at DuplicateClassDefinitionSniff.php
* Check for duplicate class definitions that can be merged into one.
* @author Greg Sherwood <gsherwood@squiz.net>
* @copyright 2006-2015 Squiz Pty Ltd (ABN 77 084 670 600)
* @license https://github.com/squizlabs/PHP_CodeSniffer/blob/master/licence.txt BSD Licence
namespace PHP_CodeSniffer\Standards\Squiz\Sniffs\CSS;
use PHP_CodeSniffer\Sniffs\Sniff;
use PHP_CodeSniffer\Files\File;
use PHP_CodeSniffer\Util\Tokens;
class DuplicateClassDefinitionSniff implements Sniff
* A list of tokenizers this sniff supports.
public $supportedTokenizers = array ('CSS');
* Returns the token types that this sniff is interested in.
public function register ()
return array (T_OPEN_TAG );
* Processes the tokens that this sniff is interested in.
* @param \PHP_CodeSniffer\Files\File $phpcsFile The file where the token was found.
* @param int $stackPtr The position in the stack where
public function process (File $phpcsFile, $stackPtr)
$tokens = $phpcsFile->getTokens ();
// Find the content of each class definition name.
// No class definitions in the file.
// Save the class names in a "scope",
// to prevent false positives with @media blocks.
while ($next !== false ) {
$prev = $phpcsFile->findPrevious ($find, ($next - 1 ));
// Check if an inner block was closed.
$beforePrev = $phpcsFile->findPrevious (Tokens ::$emptyTokens, ($prev - 1 ), null , true );
if ($beforePrev !== false
// Create a sorted name for the class so we can compare classes
// even when the individual names are all over the place.
for ($i = ($prev + 1 ); $i < $next; $i++ ) {
$name .= $tokens[$i]['content'];
// Media block has its own "scope".
} else if (isset ($classNames[$scope][$name]) === true ) {
$first = $classNames[$scope][$name];
$error = 'Duplicate class definition found; first defined on line %s';
$data = array ($tokens[$first]['line']);
$phpcsFile->addError ($error, $next, 'Found', $data);
$classNames[$scope][$name] = $next;
Documentation generated on Mon, 11 Mar 2019 15:27:24 -0400 by phpDocumentor 1.4.4. PEAR Logo Copyright © PHP Group 2004.
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