[Bug 30422] Provide GVariant-based access to all a{sv} things

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=30422

--- Comment #46 from Simon McVittie <simon.mcvittie at collabora.co.uk> 2012-04-30 11:16:44 UTC ---
(In reply to comment #43)
> > A common GVariant trap: handle_type should be a guint32, not a TpHandleType
> > (which we assume is the same size as a guint). guint is not necessarily 32-bit
> > forever.
> 
> Humm that's nasty :\
> Can't we do anything to fix this in next?

Not really. enums are as big as the compiler says they are: strictly speaking,
we shouldn't assume they're int-sized either, since ISO C says they can have
any type big enough for all the declared values (but I think GObject relies on
enums being int-sized too, so we're more or less safe on real-world platforms).

I tried to convince desrt that returning the integer and having a boolean "out"
parameter was more forgiving than the other way round, but he wasn't having any
of it... so we'll just have to be careful about this.

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