Re: [BlueZ v3 00/10] gdbus: Better D-Bus introspection

[Lucas De Marchi <lucas.demarchi@profusion.mobi>]

On Mon, Apr 30, 2012 at 7:34 AM, Luiz Augusto von Dentz
<luiz.dentz@gmail.com> wrote:
> Hi Lucas,
>
> On Mon, Apr 30, 2012 at 12:40 AM, Lucas De Marchi
> <lucas.demarchi@profusion.mobi> wrote:
>>
>> Since we are using '[' and ']' only internally. I don't see a problem
>> with that. If D-Bus start using it we can change later. Of course it's
>> better to convince D-Bus guys to reserve that, but IMO this shouldn't
>> be a blocker.
>>
>> From the chars you suggested, only '@' seems reasonable and I can
>> change to this char if we agree on it.
>
>  Either way IMO it is ugly to mess around with the signature but
> perhaps it is the only alternative we have.

There are other ways, but they have shortcomings, too -> the other 2
approaches that I sent to this ML have the shortcoming that in C it's
not possible to initialize flexible array members in a nested context.


>
> I wonder how other binding works in this regard, or they always have
> to depend on a xml file that describes the interface? iirc that used
> to be the case for GTK and QT, perhaps python is the only one that can
> really make use of this in runtime as d-feet seems to be able to use
> this information already.

As far as I checked, what glib does is to maintain the arguments in a
separate array (http://developer.gnome.org/gio/stable/gio-D-Bus-Introspection-Data.html#GDBusMethodInfo-struct).
This implies that for each method we need to declare the arguments in
a separate structure, not nested as we are doing now.


Lucas De Marchi