Re: [Qemu-devel] [PATCH v3] qmp: expose list of supported character device backends

[Eric Blake <eblake@redhat.com>]

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On 02/11/2014 01:32 AM, Markus Armbruster wrote:
> Eric Blake <eblake@redhat.com> writes:

>>
>> Hmm, right now, the ChardevBackend union pre-dates when we added flat
>> unions.  For flat unions, we can set a discriminator to be an enum type
>> [1], at which point the code generator then validates that we cover all
>> values of the enum in branches of the union; maybe it's worth
>> retro-fitting simple unions to also take advantage of the additional
>> coverage of the discriminator being an enum.
> 
> Yes, and Wenchao Xia has been working towards that: "[PATCH V5 00/10]
> qapi script: support enum as discriminator and better enum name".
> 

>> [1] actually, did those patches ever get applied, and we just missed
>> documenting it in qapi-code-gen.txt, or are they still pending review?
> 
> By "those", do you mean Wenchao Xia's patches?

Maybe my [1] to tie together two widely separated paragraphs wasn't
obvious, but yes, I meant Wenchao's tests.  Plus they just got reposted:
https://lists.gnu.org/archive/html/qemu-devel/2014-02/msg01706.html

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org


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