class InstallTSniff

class InstallTSniff extends FunctionDefinition {
    
    /**
     * Process this function definition.
     *
     * @param \PHP_CodeSniffer\Files\File $phpcsFile   The file being scanned.
     * @param int                         $stackPtr    The position of the function name
     *                                                 in the stack.
     * @param int                         $functionPtr The position of the function keyword
     *                                                 in the stack.
     *
     * @return void|int
     */
    public function processFunction(File $phpcsFile, $stackPtr, $functionPtr) {
        $fileExtension = strtolower(substr($phpcsFile->getFilename(), -7));
        // Only check in *.install files.
        if ($fileExtension !== 'install') {
            return $phpcsFile->numTokens + 1;
        }
        $fileName = substr(basename($phpcsFile->getFilename()), 0, -8);
        $tokens = $phpcsFile->getTokens();
        if ($tokens[$stackPtr]['content'] !== $fileName . '_install' && $tokens[$stackPtr]['content'] !== $fileName . '_requirements') {
            return;
        }
        // This check only applies to Drupal 7, not Drupal 8.
        if (Project::getCoreVersion($phpcsFile) !== 7) {
            return $phpcsFile->numTokens + 1;
        }
        // Search in the function body for t() calls.
        $string = $phpcsFile->findNext(T_STRING, $tokens[$functionPtr]['scope_opener'], $tokens[$functionPtr]['scope_closer']);
        while ($string !== false) {
            if ($tokens[$string]['content'] === 't' || $tokens[$string]['content'] === 'st') {
                $opener = $phpcsFile->findNext(Tokens::$emptyTokens, $string + 1, null, true);
                if ($opener !== false && $tokens[$opener]['code'] === T_OPEN_PARENTHESIS) {
                    $error = 'Do not use t() or st() in installation phase hooks, use $t = get_t() to retrieve the appropriate localization function name';
                    $phpcsFile->addError($error, $string, 'TranslationFound');
                }
            }
            $string = $phpcsFile->findNext(T_STRING, $string + 1, $tokens[$functionPtr]['scope_closer']);
        }
        
        //end while
    }
    
    //end processFunction()

}