PhpCsFixer\Fixer\NamespaceNotation\BlankLineAfterNamespaceFixer::fix PHP Метод

    public function fix(\SplFileInfo $file, Tokens $tokens)
    {
        $ending = $this->whitespacesConfig->getLineEnding();
        $lastIndex = $tokens->count() - 1;
        for ($index = $lastIndex; $index >= 0; --$index) {
            $token = $tokens[$index];
            if (!$token->isGivenKind(T_NAMESPACE)) {
                continue;
            }
            $semicolonIndex = $tokens->getNextTokenOfKind($index, array(';', '{', array(T_CLOSE_TAG)));
            $semicolonToken = $tokens[$semicolonIndex];
            if (!isset($tokens[$semicolonIndex + 1]) || !$semicolonToken->equals(';')) {
                continue;
            }
            $nextIndex = $semicolonIndex + 1;
            $nextToken = $tokens[$nextIndex];
            if (!$nextToken->isWhitespace()) {
                $tokens->insertAt($semicolonIndex + 1, new Token(array(T_WHITESPACE, $ending . $ending)));
            } else {
                $nextToken->setContent(($nextIndex === $lastIndex ? $ending : $ending . $ending) . ltrim($nextToken->getContent()));
            }
        }
    }