PhpCsFixer\Fixer\ControlStructure\NoTrailingCommaInListCallFixer::fix PHP Метод

    public function fix(\SplFileInfo $file, Tokens $tokens)
    {
        for ($index = $tokens->count() - 1; $index >= 0; --$index) {
            $token = $tokens[$index];
            if (!$token->isGivenKind(T_LIST)) {
                continue;
            }
            $openIndex = $tokens->getNextMeaningfulToken($index);
            $closeIndex = $tokens->findBlockEnd(Tokens::BLOCK_TYPE_PARENTHESIS_BRACE, $openIndex);
            $markIndex = null;
            $prevIndex = $tokens->getPrevNonWhitespace($closeIndex);
            while ($tokens[$prevIndex]->equals(',')) {
                $markIndex = $prevIndex;
                $prevIndex = $tokens->getPrevNonWhitespace($prevIndex);
            }
            if (null !== $markIndex) {
                $tokens->clearRange($tokens->getPrevNonWhitespace($markIndex) + 1, $closeIndex - 1);
            }
        }
    }