protocol rules question: is an array arg of object ids legal?

[jleivent]

Is it legal for a protocol message to contain an array arg where the
contents of the array are Wayland object ids?  I don't see any instance
of this in any current protocol descriptions I have.

Re: protocol rules question: is an array arg of object ids legal?

[Simon Ser]

On Wednesday, December 27th, 2023 at 19:09, jleivent  
wrote:

> Is it legal for a protocol message to contain an array arg where the
> contents of the array are Wayland object ids? I don't see any instance
> of this in any current protocol descriptions I have.

Technically nothing prevents this, but this will be pretty awkward since
client and server will need to convert to/from IDs (plus
wrapping/unwrapping the wl_proxy for the client) and there won't be any
type safety. In general it's better to have a request/event carrying a
single object which can be sent multiple times to accumulate a list of
objects.

Re: protocol rules question: is an array arg of object ids legal?

[jleivent]

Thanks for the prompt answer!

On Wed, 27 Dec 2023 18:17:32 +
Simon Ser  wrote:

> On Wednesday, December 27th, 2023 at 19:09, jleivent
>  wrote:
> 
> > Is it legal for a protocol message to contain an array arg where the
> > contents of the array are Wayland object ids? I don't see any
> > instance of this in any current protocol descriptions I have.  
> 
> Technically nothing prevents this, but this will be pretty awkward
> since client and server will need to convert to/from IDs (plus
> wrapping/unwrapping the wl_proxy for the client) and there won't be
> any type safety. In general it's better to have a request/event
> carrying a single object which can be sent multiple times to
> accumulate a list of objects.