class MessageTSniff

class MessageTSniff extends FunctionCall {
    
    /**
     * Returns an array of function names this test wants to listen for.
     *
     * @return array<string>
     */
    public function registerFunctionNames() {
        return [
            'drupal_set_message',
        ];
    }
    
    //end registerFunctionNames()
    
    /**
     * Processes this function call.
     *
     * @param \PHP_CodeSniffer\Files\File $phpcsFile    The file being scanned.
     * @param int                         $stackPtr     The position of the function call in
     *                                                  the stack.
     * @param int                         $openBracket  The position of the opening
     *                                                  parenthesis in the stack.
     * @param int                         $closeBracket The position of the closing
     *                                                  parenthesis in the stack.
     *
     * @return void
     */
    public function processFunctionCall(File $phpcsFile, $stackPtr, $openBracket, $closeBracket) {
        $tokens = $phpcsFile->getTokens();
        $argument = $this->getArgument(1);
        if ($argument !== false && $tokens[$argument['start']]['code'] === T_CONSTANT_ENCAPSED_STRING) {
            $warning = 'Messages are user facing text and must run through t() for translation';
            $phpcsFile->addWarning($warning, $argument['start'], 'ErrorMessage');
        }
    }
    
    //end processFunctionCall()

}