public object Read(object value, ProtoReader source)
{
ProtoReader.ExpectRoot(source);
if (_protoCompatibility)
{
return(_serializer.Read(value, source));
}
int typeKey;
object obj;
int expectedRefKey;
var rootToken = ProtoReader.StartSubItem(source);
int formatVersion = source.ReadFieldHeader();
if (formatVersion != CurrentFormatVersion)
{
throw new ProtoException("Wrong format version, required " + CurrentFormatVersion + " but actual " + formatVersion);
}
var r = _serializer.Read(value, source);
while (ProtoReader.TryGetNextLateReference(out typeKey, out obj, out expectedRefKey, source))
{
int actualRefKey;
do
{
actualRefKey = source.ReadFieldHeader() - 1;
if (actualRefKey != expectedRefKey)
{
if (actualRefKey <= -1)
{
throw new ProtoException("Expected field for late reference");
}
// should go only up
if (actualRefKey > expectedRefKey)
{
throw new ProtoException("Mismatched order of late reference objects");
}
source.SkipField(); // refKey < num
}
} while (actualRefKey < expectedRefKey);
object lateObj = ProtoReader.ReadObject(obj, typeKey, source);
if (!ReferenceEquals(lateObj, obj))
{
throw new ProtoException("Late reference changed during deserializing");
}
}
ProtoReader.EndSubItem(rootToken, true, source);
return(r);
}