class JavaScriptLintSniff

class JavaScriptLintSniff implements Sniff {
    
    /**
     * A list of tokenizers this sniff supports.
     *
     * @var array
     */
    public $supportedTokenizers = [
        'JS',
    ];
    
    /**
     * Returns the token types that this sniff is interested in.
     *
     * @return array<int|string>
     */
    public function register() {
        return [
            T_OPEN_TAG,
        ];
    }
    
    //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 int
     * @throws \PHP_CodeSniffer\Exceptions\RuntimeException If Javascript Lint ran into trouble.
     */
    public function process(File $phpcsFile, $stackPtr) {
        $jslPath = Config::getExecutablePath('jsl');
        if ($jslPath === null) {
            return $phpcsFile->numTokens;
        }
        $fileName = $phpcsFile->getFilename();
        $cmd = '"' . Common::escapeshellcmd($jslPath) . '" -nologo -nofilelisting -nocontext -nosummary -output-format __LINE__:__ERROR__ -process ' . escapeshellarg($fileName);
        $msg = exec($cmd, $output, $retval);
        // Variable $exitCode is the last line of $output if no error occurs, on
        // error it is numeric. Try to handle various error conditions and
        // provide useful error reporting.
        if ($retval === 2 || $retval === 4) {
            if (is_array($output) === true) {
                $msg = implode('\\n', $output);
            }
            throw new RuntimeException("Failed invoking JavaScript Lint, retval was [{$retval}], output was [{$msg}]");
        }
        if (is_array($output) === true) {
            foreach ($output as $finding) {
                $split = strpos($finding, ':');
                $line = substr($finding, 0, $split);
                $message = substr($finding, $split + 1);
                $phpcsFile->addWarningOnLine(trim($message), $line, 'ExternalTool');
            }
        }
        // Ignore the rest of the file.
        return $phpcsFile->numTokens;
    }
    
    //end process()

}