PhpCsFixer\Fixer\LanguageConstruct\ClassKeywordRemoveFixer::replaceClassKeywords PHP Метод

    private function replaceClassKeywords(Tokens $tokens, $namespaceNumber = -1)
    {
        $namespaceIndexes = array_keys($tokens->findGivenKind(T_NAMESPACE));
        // Namespace blocks
        if (!empty($namespaceIndexes) && isset($namespaceIndexes[$namespaceNumber])) {
            $startIndex = $namespaceIndexes[$namespaceNumber];
            $namespaceBlockStartIndex = $tokens->getNextTokenOfKind($startIndex, array(';', '{'));
            $endIndex = $tokens[$namespaceBlockStartIndex]->equals('{') ? $tokens->findBlockEnd(Tokens::BLOCK_TYPE_CURLY_BRACE, $namespaceBlockStartIndex) : $tokens->getNextTokenOfKind($namespaceBlockStartIndex, array(T_NAMESPACE));
            $endIndex = $endIndex ?: $tokens->count() - 1;
        } elseif (-1 === $namespaceNumber) {
            // Out of any namespace block
            $startIndex = 0;
            $endIndex = !empty($namespaceIndexes) ? $namespaceIndexes[0] : $tokens->count() - 1;
        } else {
            return;
        }
        $this->storeImports($tokens, $startIndex, $endIndex);
        $tokens->rewind();
        $this->replaceClassKeywordsSection($tokens, $startIndex, $endIndex);
        $this->replaceClassKeywords($tokens, $namespaceNumber + 1);
    }