Re: [Xen-devel] [PATCH 2 of 2] RFC: libxl: move definition of libxl_domain_config into the IDL

[Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>]

Ian Campbell writes ("Re: [Xen-devel] [PATCH 2 of 2] RFC: libxl: move 
definition of libxl_domain_config into the IDL"):
> On Tue, 2012-04-24 at 18:57 +0100, Ian Jackson wrote:
...
> > Why does the Array not automatically invent a "num_<foo>" field ?
> > Surely there is no benefit to having non-systematically named (or
> > typed) array count fields ?
> 
> That would be good but currently the Array type doesn't see the name of
> the member in the containing struct:
> Struct("thing", [
>       ("disks", Array(libxl_device_disk, "num_disks")),
> ])
> 
> We have a similar problem with the KeyedUnion which similarly ought to
> be able to at least default keyvar_name to something.

Ah.  Can we make it an absolutely hard policy rule that the name _is_
some fixed variant on the name of the pointer member ?  That way we
will be able to autogenerate it later without trouble.

The transformation should probably not involve adding "s" because then
people will be tempted to sometimes add "es" (or alternatively we have
to live with misspelled plurals).

Ian.

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