System.Runtime.Serialization.Json.JsonDataContract.JsonDataContractCriticalHelper.GetId C# (CSharp) Method

            internal static int GetId(RuntimeTypeHandle typeHandle)
            {
                lock (s_cacheLock)
                {
                    IntRef id;
                    s_typeHandleRef.Value = typeHandle;
                    if (!s_typeToIDCache.TryGetValue(s_typeHandleRef, out id))
                    {
                        int value = s_dataContractID++;
                        if (value >= s_dataContractCache.Length)
                        {
                            int newSize = (value < Int32.MaxValue / 2) ? value * 2 : Int32.MaxValue;
                            if (newSize <= value)
                            {
                                Fx.Assert("DataContract cache overflow");
                                throw new SerializationException(SR.DataContractCacheOverflow);
                            }
                            Array.Resize<JsonDataContract>(ref s_dataContractCache, newSize);
                        }
                        id = new IntRef(value);
                        try
                        {
                            s_typeToIDCache.Add(new TypeHandleRef(typeHandle), id);
                        }
                        catch (Exception ex)
                        {
                            if (DiagnosticUtility.IsFatal(ex))
                            {
                                throw;
                            }
                            throw DiagnosticUtility.ExceptionUtility.ThrowHelperFatal(ex.Message, ex);
                        }
                    }
                    return id.Value;
                }
            }