Re: [Qemu-devel] [PATCH v12 13/36] qapi: Hoist tag collision check to Variants.check()

[Markus Armbruster <armbru@redhat.com>]

Eric Blake <eblake@redhat.com> writes:

> *** WARNING: THE ATTACHED DOCUMENT(S) CONTAIN MACROS ***
> *** MACROS MAY CONTAIN MALICIOUS CODE ***
> *** Open only if you can verify and trust the sender ***
> *** Please contact infosec@redhat.com if you have questions or concerns **

Looks like infosec crapped over your commit message.

> Checking that a given QAPISchemaObjectTypeVariant.name is a
> member of the corresponding QAPISchemaEnumType of the owning
> QAPISchemaObjectTypeVariants.tag_member ensures that there are
> no collisions in the generated C union for those tag values
> (since the enum itself should have no collisions).
>
> However, ever since its introduction in f51d8c3d, this was the
> only additional action of of Variant.check(), beyond calling
> the superclass Member.check().  This forces a difference in
> .check() signatures, just to pass the enum type down.
>
> Simplify things by instead doing the tag name check as part of
> Variants.check(), at which point we can rely on inheritance
> instead of overriding Variant.check().
>
> Signed-off-by: Eric Blake <eblake@redhat.com>

Can bury the infosec turd on merge.