Element parse(File sourceFile) {
        root = parseSourceFile(sourceFile)
        root.documentElement
    }

    Node emptyDoc() {
        root = DocumentBuilderFactory.newInstance().newDocumentBuilder().newDocument()
    }

    void write(File destFile, boolean indent = false) {
        destFile.withOutputStream { OutputStream stream ->
            TransformerFactory factory = TransformerFactory.newInstance()

        }
    }

    private void build(ClassExtensionDoc extensionDoc) {
        Document doc;
        try {
            doc = DocumentBuilderFactory.newInstance().newDocumentBuilder().newDocument();
        } catch (ParserConfigurationException e) {
            throw UncheckedException.throwAsUncheckedException(e);
        }

        LinkRenderer linkRenderer = new LinkRenderer(doc, model);