private static void _SerializeValue(Utf8JsonWriter writer, Object value)
{
Guard.NotNull(writer, nameof(writer));
Guard.NotNull(value, nameof(value));
System.Diagnostics.Debug.Assert(!value.GetType().IsEnum, "gltf schema does not define a typed way of serializing enums");
if (writer.TryWriteValue(value))
{
return;
}
if (value is JsonSerializable vgltf)
{
vgltf.Serialize(writer); return;
}
if (value is System.Collections.IDictionary dict)
{
if (dict.Count == 0)
{
return;
}
writer.WriteStartObject();
foreach (var key in dict.Keys)
{
var val = dict[key];
if (val == null)
{
continue;
}
// if the value is a collection, we need to check if the collection is empty
// to prevent writing the key, without writing the value.
if (!(val is String || val is JsonSerializable))
{
if (val is System.Collections.IList xlist && xlist.Count == 0)
{
continue;
}
if (val is System.Collections.IDictionary xdict && xdict.Count == 0)
{
continue;
}
}
_SerializeProperty(writer, key.ToString(), val);
}
writer.WriteEndObject();
return;
}
if (value is System.Collections.IList list)
{
if (list.Count == 0)
{
return;
}
writer.WriteStartArray();
foreach (var item in list)
{
_SerializeValue(writer, item);
}
writer.WriteEndArray();
return;
}
throw new NotImplementedException($"Serialization of {value.GetType().Name} types is not supported.");
}