NullableSerializer.cs

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using Fauna.Mapping;
 
namespace Fauna.Serialization;
 
internal class NullableSerializer<T> : BaseSerializer<T?>
{
    private readonly ISerializer<T> _inner;
 
    public NullableSerializer(ISerializer<T> inner)
    {
        _inner = inner;
    }
 
    public override T? Deserialize(MappingContext context, ref Utf8FaunaReader reader)
    {
        if (reader.CurrentTokenType == TokenType.Null)
        {
            return default(T);
        }
 
        return _inner.Deserialize(context, ref reader);
    }
 
    public override void Serialize(MappingContext context, Utf8FaunaWriter writer, object? o)
    {
        DynamicSerializer.Singleton.Serialize(context, writer, o);
    }
}