private IDictionary CreateNewDictionary(JsonReader reader, JsonDictionaryContract contract, out bool createdFromNonDefaultConstructor) { if (contract.IsReadOnlyOrFixedSize) { createdFromNonDefaultConstructor = true; return contract.CreateTemporaryDictionary(); } else if (contract.DefaultCreator != null && (!contract.DefaultCreatorNonPublic || Serializer._constructorHandling == ConstructorHandling.AllowNonPublicDefaultConstructor)) { object dictionary = contract.DefaultCreator(); if (contract.ShouldCreateWrapper) dictionary = contract.CreateWrapper(dictionary); createdFromNonDefaultConstructor = false; return (IDictionary)dictionary; } else if (contract.ParametrizedConstructor != null) { createdFromNonDefaultConstructor = true; return contract.CreateTemporaryDictionary(); } else { throw JsonSerializationException.Create(reader, "Unable to find a default constructor to use for type {0}.".FormatWith(CultureInfo.InvariantCulture, contract.UnderlyingType)); } }