[xsd-users] how do i use xse:refType with extra attribute?

[Omkar Wagh]

Hi Boris.

On 05/31/2012 02:41 PM, Boris Kolpackov wrote:
> Hi Omkar,
>
> Omkar Wagh<owagh at tower-research.com>  writes:
>
>> I have the following schema :-
>>
>> <xs:complexType name="ref_T">
>> <xs:simpleContent>
>> <xs:extension base="xs:IDREF">
>> <xs:attribute name="extra_param" type="xs:integer" />
>> </xs:extension>
>> </xs:simpleContent>
>> </xs:complexType>
>>
>> <xs:complexType name="option_T">
>> <xs:choice>
>> <xs:element name="reference" type="ref_T" xse:refType="some_type_T" />
>> </xs:choice>
>> </xs:complexType>
> No, this won't work. We don't generate a template for ref_T which
> can later be specialized with a referenced type. This, however, will
> work:
>
> <xs:complexType name="ref_to_some_type_T">
>    <xs:simpleContent>
>      <xs:extension base="xs:IDREF" xse:refType="some_type_T">
>        <xs:attribute name="extra_param" type="xs:integer" />
>      </xs:extension>
>    </xs:simpleContent>
> </xs:complexType>
>
> <xs:complexType name="option_T">
>    <xs:choice>
>      <xs:element name="reference" type="ref_to_some_type_T"/>
>    </xs:choice>
> </xs:complexType>
It looks like this should work but it doesn't. xsd quits with the 
following :-
xsd: 
/apps/stonefs1/owagh/softwares/xsd-3.3.0+dep/libxsd-frontend/xsd-frontend/semantic-graph/elements.hxx:411: 
XSDFrontend::SemanticGraph::Scope& 
XSDFrontend::SemanticGraph::Nameable::scope(): Assertion `named_p ()' 
failed.

Omkar
>
> Boris