class object_t
{
    struct element
    {
        element* next_;
        element* prev_;
        value v_;

        string_view
        key() const noexcept;

        // varint key size
        // char[] key name follows
    };

    struct table
    {
        // number of values in the object
        std::size_t size = 0;

        // number of buckets in table
        std::size_t buckets = 0;

        // insertion-order list of all objects
        element* head = nullptr;
        element* tail = nullptr;

        // hash table entries follow
    };

    table* p_ = nullptr;

public:
};