PhpCsFixer\Fixer\Operator\PreIncrementFixer::fix PHP Method

    public function fix(\SplFileInfo $file, Tokens $tokens)
    {
        $tokensAnalyzer = new TokensAnalyzer($tokens);
        for ($index = $tokens->count() - 1; 0 <= $index; --$index) {
            $token = $tokens[$index];
            if (!$token->isGivenKind(array(T_INC, T_DEC)) || !$tokensAnalyzer->isUnarySuccessorOperator($index)) {
                continue;
            }
            $nextToken = $tokens[$tokens->getNextMeaningfulToken($index)];
            if (!$nextToken->equalsAny(array(';', ')'))) {
                continue;
            }
            $startIndex = $this->findStart($tokens, $index);
            $prevToken = $tokens[$tokens->getPrevMeaningfulToken($startIndex)];
            if ($prevToken->equalsAny(array(';', '{', '}', array(T_OPEN_TAG)))) {
                $tokens->insertAt($startIndex, clone $token);
                $token->clear();
            }
        }
    }