On Thu, 2013-02-28 at 09:26 +0100, Dan Winship wrote: > > 4. It's impossible to create custom Gtk.TreeIter from JS (no > > constructor), so can't implement a completely custom Gtk.TreeModel. > > I don't know the details of this particular issue, but if it's not > possible to do at all now, then any change to make it more bindable > could not possibly break any existing code, so it could happen at any > time.
IIRC the GtkTreeIter is assumed to not allocate memory. The API and ABI would need to be altered in order to incorporate it as: - 3rd party needs to free GtkTreeIter if it uses one from arbitrary model (possibly not so important) - i.e. there is API change and ABI. - All elements of class struct are already occupied so the size of struct would need to be change - thus changing the the ABI. I looked at the issue around Gtk+ 3.2 when someone asked for non-memory allocating iterators for libgee (I cannot find the request right now but making it bindable would solve this issue as well). Best regards
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