class EmptyClassDefinitionSniff

class EmptyClassDefinitionSniff implements Sniff {
    
    /**
     * A list of tokenizers this sniff supports.
     *
     * @var array
     */
    public $supportedTokenizers = [
        'CSS',
    ];
    
    /**
     * Returns the token types that this sniff is interested in.
     *
     * @return array<int|string>
     */
    public function register() {
        return [
            T_OPEN_CURLY_BRACKET,
        ];
    }
    
    //end register()
    
    /**
     * 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
     *                                               the token was found.
     *
     * @return void
     */
    public function process(File $phpcsFile, $stackPtr) {
        $tokens = $phpcsFile->getTokens();
        $next = $phpcsFile->findNext(Tokens::$emptyTokens, $stackPtr + 1, null, true);
        if ($next === false || $tokens[$next]['code'] === T_CLOSE_CURLY_BRACKET) {
            $error = 'Class definition is empty';
            $phpcsFile->addError($error, $stackPtr, 'Found');
        }
    }
    
    //end process()

}