class DisallowBooleanStatementSniff

class DisallowBooleanStatementSniff implements Sniff {
    
    /**
     * Returns an array of tokens this test wants to listen for.
     *
     * @return array<int|string>
     */
    public function register() {
        return Tokens::$booleanOperators;
    }
    
    //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 = $phpcsFile->getTokens();
        if (isset($tokens[$stackPtr]['nested_parenthesis']) === true) {
            foreach ($tokens[$stackPtr]['nested_parenthesis'] as $open => $close) {
                if (isset($tokens[$open]['parenthesis_owner']) === true) {
                    // Any owner means we are not just a simple statement.
                    return;
                }
            }
        }
        $error = 'Boolean operators are not allowed outside of control structure conditions';
        $phpcsFile->addError($error, $stackPtr, 'Found');
    }
    
    //end process()

}