protected override bool TrySerializeAny(int fieldNumber, SerializerFeatures features, TypeModel model, ref ProtoWriter.State state, object value)
{
var serializer = TypeModel.TryGetSerializer <T>(model);
if (serializer == null)
{
return(false);
}
// note this null-check is non-trivial; for value-type T it promotes the null to a default
T typed = TypeHelper <T> .FromObject(value);
CheckAnyAuxFlow(features, serializer);
if ((features & SerializerFeatures.CategoryMessageWrappedAtRoot) == SerializerFeatures.CategoryMessageWrappedAtRoot)
{
if (fieldNumber != TypeModel.ListItemTag)
{
ThrowHelper.ThrowInvalidOperationException($"Special root-like wrapping is limited to field {TypeModel.ListItemTag}");
}
state.WriteAsRoot <T>(typed, serializer);
}
else
{
state.WriteAny <T>(fieldNumber, features, typed, serializer);
}
return(true);
}