| |
| .. _type.namedtype: |
| |
| Fields of constructed types |
| --------------------------- |
| |
| The :ref:`Sequence <univ.Sequence>`, :ref:`Set <univ.Set>` and |
| :ref:`Choice <univ.Choice>` ASN.1 types embed other ASN.1 types |
| as named fields. |
| |
| Each field can be expressed via the :ref:`NamedType <namedtype.NamedType>` |
| object while the individual fields are brought together by the |
| :ref:`NamedTypes <namedtype.NamedTypes>` object. |
| |
| Ultimately, the fields get attached to the ASN.1 type's *.componentType* |
| attributes. |
| |
| .. code-block:: python |
| |
| class RSAPublicKey(Sequence): |
| """ |
| ASN.1 specification: |
| |
| RSAPublicKey ::= SEQUENCE { |
| modulus INTEGER, -- n |
| publicExponent INTEGER -- e |
| } |
| """ |
| componentType = NamedTypes( |
| NamedType('modulus', Integer()), |
| NamedType('publicExponent', Integer()) |
| ) |
| |
| .. toctree:: |
| :maxdepth: 2 |
| |
| /pyasn1/type/namedtype/namedtype |
| /pyasn1/type/namedtype/optionalnamedtype |
| /pyasn1/type/namedtype/defaultednamedtype |
| /pyasn1/type/namedtype/namedtypes |
