System.Runtime.Serialization.XmlFormatReaderGenerator.XmlFormatReaderGenerator.CriticalHelper.GenerateGetOnlyCollectionReader C# (CSharp) Method

            public XmlFormatGetOnlyCollectionReaderDelegate GenerateGetOnlyCollectionReader(CollectionDataContract collectionContract)
            {
                if (DataContractSerializer.Option == SerializationOption.ReflectionOnly)
                {
                    return new ReflectionXmlCollectionReader().ReflectionReadGetOnlyCollection;
                }
#if NET_NATIVE
                else if (DataContractSerializer.Option == SerializationOption.ReflectionAsBackup)
                {
                    return new ReflectionXmlCollectionReader().ReflectionReadGetOnlyCollection;
                }
#endif
                else
                {
#if NET_NATIVE
                    throw new InvalidOperationException("Cannot generate class reader");
#else
                    _ilg = GenerateCollectionReaderHelper(collectionContract, true /*isGetOnlyCollection*/);
                    ReadGetOnlyCollection(collectionContract);
                    return (XmlFormatGetOnlyCollectionReaderDelegate)_ilg.EndMethod();
#endif
                }
            }