System.Runtime.Serialization.ObjectToIdCache.GetId C# (CSharp) Method

        public int GetId(object obj, ref bool newId)
        {
            bool isEmpty, isWrapped;
            int position = FindElement(obj, out isEmpty, out isWrapped);
            if (!isEmpty)
            {
                newId = false;
                return m_ids[position];
            }
            if (!newId)
                return -1;

            int id = m_currentCount++;
            m_objs[position] = obj;
            m_ids[position] = id;
            m_isWrapped[position] = isWrapped;
            if (m_currentCount >= (m_objs.Length - 1))
                Rehash();
            return id;
        }