class NoSilencedErrorsSniff

class NoSilencedErrorsSniff implements Sniff {
    
    /**
     * If true, an error will be thrown; otherwise a warning.
     *
     * @var boolean
     */
    public $error = false;
    
    /**
     * Returns an array of tokens this test wants to listen for.
     *
     * @return array<int|string>
     */
    public function register() {
        return [
            T_ASPERAND,
        ];
    }
    
    //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) {
        // Prepare the "Found" string to display.
        $contextLength = 4;
        $endOfStatement = $phpcsFile->findEndOfStatement($stackPtr, [
            T_COMMA,
            T_COLON,
        ]);
        if ($endOfStatement - $stackPtr < $contextLength) {
            $contextLength = $endOfStatement - $stackPtr;
        }
        $found = $phpcsFile->getTokensAsString($stackPtr, $contextLength);
        $found = str_replace([
            "\t",
            "\n",
            "\r",
        ], ' ', $found) . '...';
        if ($this->error === true) {
            $error = 'Silencing errors is forbidden; found: %s';
            $phpcsFile->addError($error, $stackPtr, 'Forbidden', [
                $found,
            ]);
        }
        else {
            $error = 'Silencing errors is discouraged; found: %s';
            $phpcsFile->addWarning($error, $stackPtr, 'Discouraged', [
                $found,
            ]);
        }
    }
    
    //end process()

}