Objects set members are not parsed at all

[hodossy]

I have a structure similar to the following in a file test.asn, whihc I parse with parse_files('test.asn'):

DATA-Descriptions DEFINITIONS AUTOMATIC TAGS ::=
BEGIN

DATA-ID-AND-TYPE ::= CLASS {
  &id DataId UNIQUE,
  &Type
} WITH SYNTAX {&Type IDENTIFIED BY &id}

DataId ::= INTEGER (0..255)

Data DATA-ID-AND-TYPE ::= {
    {ADataType IDENTIFIED BY aDataId} |
    {BDataType IDENTIFIED BY bDataId},
    ...
}

aDataId DataId ::= 1
bDataId DataId ::= 2

END

The outcome of the parsing is the following:

{
  "DATA-Descriptions": {
    "imports": {},
    "types": {
      "DataId": {
        "type": "INTEGER",
        "restricted-to": [(0, 255)]
      }
    },
    "values": {
      "aDataId": {
        "type": "DataId",
        "value": 1
      },
      "bDataId": {
        "type": "DataId",
        "value": 2
      }
    },
    "object-classes": {
      "DATA-ID-AND-TYPE": {
        "members": [{
          "type": "DataId",
          "name": "&id"
        }, {
          "type": "OpenType",
          "name": "&Type"
        }]
      }
    },
    "object-sets": {
      "Data": {
        "class": "DATA-ID-AND-TYPE",
        "members": []
      }
    },
    "extensibility-implied": False,
    "tags": "AUTOMATIC"
  }
}

The members of the Data object set is an empty array, but there should be two members. I think this is partially related to the CLASS keyword, and its support is in the known limitations list, but that is parsed correctly. Are object sets supported? Is this due to the fact, that the objects are a CLASS?

[eerimoq]

This part of the ASN.1 spec is not implemented and likely will never be, unless someone helps me implementing it.

[hodossy]

I have suspected, that is the case. I do not have enough time to implement full support, but if you could describe what structure the above should be parsed into, I may come up with a partial solution for the grammar. It is a small step, and I understand if you are not interested in it.