Method get_root

ecosystem/simple_dom.cpp:187–193

        delete _root;
    }
    JNode* get_root() {
        assert(_nodes.size() == 1);
        assert(_nodes.front().size() == 1);
        _root->set_children(std::move(_nodes.front().front()._children));
        DEFER(_root = nullptr);
        return _root;
    }
    void emplace_back(const char* s, size_t length, uint8_t type) {
        str val{s, length};     // _key may be empty()
        _nodes.back().emplace_back(_key, val, _root);