214             IExtensionValue extensionValue;  field in Google.Protobuf.Reflection.CustomOptions
215             if (values.TryGetValue(field, out extensionValue))
217                 if (extensionValue is ExtensionValue<T>)
219                     ExtensionValue<T> single = extensionValue as ExtensionValue<T>;
225                 else if (extensionValue is RepeatedExtensionValue<T>)
227 …                  RepeatedExtensionValue<T> repeated = extensionValue as RepeatedExtensionValue<T>;
251             IExtensionValue extensionValue;  in TryGetPrimitiveValue()
252             if (values.TryGetValue(field, out extensionValue))  in TryGetPrimitiveValue()
254                 if (extensionValue is ExtensionValue<T>)  in TryGetPrimitiveValue()
256                     ExtensionValue<T> single = extensionValue as ExtensionValue<T>;  in TryGetPrimitiveValue()
260                 else if (extensionValue is RepeatedExtensionValue<T>)  in TryGetPrimitiveValue()
262 …                  RepeatedExtensionValue<T> repeated = extensionValue as RepeatedExtensionValue<T>;  in TryGetPrimitiveValue()
272                     var type = extensionValue.GetType();  in TryGetPrimitiveValue()
279 …ypeInfo.GetDeclaredMethod(nameof(ExtensionValue<T>.GetValue)).Invoke(extensionValue, EmptyParamete…  in TryGetPrimitiveValue()
289 …GetDeclaredMethod(nameof(RepeatedExtensionValue<T>.GetValue)).Invoke(extensionValue, EmptyParamete…  in TryGetPrimitiveValue()