void Write(MetaType metaType, Type actual, ProtoWriter dest, int recursionLevel)
{
if (metaType.Type != actual)
{
foreach (var subType in metaType.GetSubtypes().OrderBy(st => st.FieldNumber))
{
MetaType derivedType = subType.DerivedType;
if (derivedType.Type == metaType.Type)
{
continue;
}
if (Helpers.IsAssignableFrom(derivedType.Type, actual))
{
if (recursionLevel == 0)
{
if (derivedType.Type == actual)
{
ProtoWriter.WriteFieldHeaderComplete(WireType.Variant, dest);
ProtoWriter.WriteInt32(subType.FieldNumber + 1, dest);
return;
}
var token = ProtoWriter.StartSubItem(null, true, dest);
ProtoWriter.WriteFieldHeaderIgnored(WireType.Variant, dest);
ProtoWriter.WriteInt32(subType.FieldNumber + 1, dest);
Write(derivedType, actual, dest, 1);
ProtoWriter.EndSubItem(token, dest);
}
else
{
ProtoWriter.WriteFieldHeaderIgnored(WireType.Variant, dest);
ProtoWriter.WriteInt32(subType.FieldNumber + 1, dest);
Write(derivedType, actual, dest, recursionLevel + 1);
}
return;
}
}
}
if (recursionLevel == 0)
{
ProtoWriter.WriteFieldHeaderComplete(WireType.Variant, dest);
ProtoWriter.WriteInt32(0, dest);
}
}
public void Write(object value, ProtoWriter dest)
{
if (_allowNullWireType && value == null)
{
ProtoWriter.WriteFieldHeaderComplete(WireType.Null, dest);
return;
}
bool write;
int dynamicTypeKey;
var options = _options;
if ((options & BclHelpers.NetObjectOptions.WriteAsLateReference) != 0 && !ProtoWriter.CheckIsOnHalfToRecursionDepthLimit(dest))
{
options &= ~BclHelpers.NetObjectOptions.WriteAsLateReference;
}
SubItemToken token = NetObjectHelpers.WriteNetObject_Start(value, dest, options, out dynamicTypeKey, out write);
if (write)
{
// field header written!
if ((options & BclHelpers.NetObjectOptions.DynamicType) != 0)
{
if (dynamicTypeKey < 0)
{
ProtoTypeCode typeCode = HelpersInternal.GetTypeCode(value.GetType());
WireType wireType = HelpersInternal.GetWireType(typeCode, _dataFormatForDynamicBuiltins);
if (wireType != WireType.None)
{
ProtoWriter.WriteFieldHeaderComplete(wireType, dest);
if (!ProtoWriter.TryWriteBuiltinTypeValue(value, typeCode, true, dest))
{
throw new ProtoException("Dynamic type is not a contract-type: " + value.GetType().Name);
}
}
else
{
throw new ProtoException("Dynamic type is not a contract-type: " + value.GetType().Name);
}
}
else
{
ProtoWriter.WriteRecursionSafeObject(value, dynamicTypeKey, dest);
}
}
else
{
if ((options & BclHelpers.NetObjectOptions.WriteAsLateReference) != 0)
{
_lateReferenceTail.Write(value, dest);
}
else if (_tail != null)
{
_tail.Write(value, dest);
}
else
{
Debug.Assert(_baseKey >= 0);
if (_baseKeySerializer != null)
{
_baseKeySerializer.Write(value, dest);
}
else
{
ProtoWriter.WriteRecursionSafeObject(value, _baseKey, dest);
}
}
}
}
ProtoWriter.EndSubItem(token, dest);
}
