How to get type converters when using WithPreProcessingPhaseObjectGraphVisitor

[WEGFan]

I'm currently trying to solve #660 in our project, by duplicating AnchorAssigner and replacing assignments dictionary definition to a compare by reference one. However, when I'm building the serializer, I found that WithPreProcessingPhaseObjectGraphVisitor() doesn't take a Func type as the parameter, so I need to instantiate my own ReferenceEqualAnchorAssigner but I don't know how can I get type converters.

So I would like to know is there a way to get a list of type converters?

My code is

new SerializerBuilder()
    .ConfigureDefaultValuesHandling(DefaultValuesHandling.Preserve)
    // expecting something `like typeConverters => new ReferenceEqualAnchorAssigner(typeConverters)` for the first argument
    .WithPreProcessingPhaseObjectGraphVisitor(new ReferenceEqualAnchorAssigner( ??? ), w => w.InsteadOf<AnchorAssigner>())
    .WithEmissionPhaseObjectGraphVisitor(args => new AnchorAssigningObjectGraphVisitor(args.InnerVisitor, args.EventEmitter, args.GetPreProcessingPhaseObjectGraphVisitor<ReferenceEqualAnchorAssigner>()),
        w => w.InsteadOf<AnchorAssigningObjectGraphVisitor>())
    .Build();

and ReferenceEqualAnchorAssigner is the same as AnchorAssigner except assignments:

public sealed class ReferenceEqualAnchorAssigner : PreProcessingPhaseObjectGraphVisitorSkeleton, IAliasProvider {
    private readonly IDictionary<object, AnchorAssignment> assignments = new Dictionary<object, AnchorAssignment>(ReferenceEqualityComparer.Instance);
    ...
}

[EdwardCooke]

There are 3 pre-built type converters, the DateTimeConverter, GuidConverter and SystemTypeConverter. They are in the YamlDotNet.Serialization.Converters namespace. In the serializer/deserializer builder base class, only GuidConverter and SystemTypeConverter are registered. I do see a way to remove type converters, but not add. You can see the code where it adds the type converters here:

YamlDotNet/YamlDotNet/Serialization/BuilderSkeleton.cs

Lines 49 to 53 in 38b6ff5

	typeConverterFactories = new LazyComponentRegistrationList<Nothing, IYamlTypeConverter>
	{
	{ typeof(GuidConverter), _ => new GuidConverter(false) },
	{ typeof(SystemTypeConverter), _ => new SystemTypeConverter() }
	};

I hope this helps.