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Re: [Qemu-ppc] [Qemu-devel] [PATCH v7 29/31] qapi: Simplify semantics of
From: |
Eric Blake |
Subject: |
Re: [Qemu-ppc] [Qemu-devel] [PATCH v7 29/31] qapi: Simplify semantics of visit_next_list() |
Date: |
Thu, 10 Dec 2015 10:32:14 -0700 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 |
On 12/07/2015 08:55 PM, Eric Blake wrote:
> We can greatly simplify things by hoisting the special case
> into the start() routine, and flipping the order in the loop
> to visit before advance:
>
> start(head)
> element = *head
> while (element) {
> visit(element)
> element = next(element)
> }
>
> +++ b/include/qapi/visitor-impl.h
> @@ -40,9 +40,10 @@ struct Visitor
> void (*end_implicit_struct)(Visitor *v);
>
> /* Must be set */
> - void (*start_list)(Visitor *v, const char *name, Error **errp);
> + void (*start_list)(Visitor *v, const char *name, GenericList **list,
> + Error **errp);
Looking at this, it is inconsistent with start_struct (where name comes
AFTER the object); that is, I think this should probably be:
void (*start_list)(Visitor *v, GenericList **list, const char *name,
Error **errp);
although I'll still wait for review comments before respinning.
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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