SerializationObjectManager.cs

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using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
 
namespace System.Runtime.Serialization;
 
public sealed class SerializationObjectManager
{
    private readonly Dictionary<object, object> _objectSeenTable;
 
    private readonly StreamingContext _context;
 
    private SerializationEventHandler _onSerializedHandler;
 
    public SerializationObjectManager(StreamingContext context)
    {
        _context = context;
        _objectSeenTable = new Dictionary<object, object>();
    }
 
    [RequiresUnreferencedCode("SerializationObjectManager is not trim compatible because the Type of objects being managed cannot be statically discovered.")]
    public void RegisterObject(object obj)
    {
        SerializationEvents serializationEventsForType = SerializationEventsCache.GetSerializationEventsForType(obj.GetType());
        if (serializationEventsForType.HasOnSerializingEvents && _objectSeenTable.TryAdd(obj, true))
        {
            serializationEventsForType.InvokeOnSerializing(obj, _context);
            AddOnSerialized(obj);
        }
    }
 
    public void RaiseOnSerializedEvent()
    {
        _onSerializedHandler?.Invoke(_context);
    }
 
    [RequiresUnreferencedCode("SerializationObjectManager is not trim compatible because the Type of objects being managed cannot be statically discovered.")]
    private void AddOnSerialized(object obj)
    {
        SerializationEvents serializationEventsForType = SerializationEventsCache.GetSerializationEventsForType(obj.GetType());
        _onSerializedHandler = serializationEventsForType.AddOnSerialized(obj, _onSerializedHandler);
    }
}