Re: gperl_callback_invoke userdata copy



Torsten Schoenfeld <kaffeetisch gmx de> writes:

I don't know if it will work -- did you try it?

I did now!

Do we want to support assigning to $_[-1]?

It could be in the docs if it's meant to work.  I can't see any
disadvantage, it gets you a free bit of "state data" if you want to use
it that way.

I see GClosure for signals is this way -- refcnt inc and mortalize --
and assigning alters the stored data.  I guess GPerlCallback can be the
same.  The net change then to it is just a refcount fix which was
tickled by a callback disconnecting/destroying itself.

(Some test cases under in GtkLinkButton because there's no destroyable
GPerlCallbacks in plain Glib.)

Attachment: GClosure.xs.callback-userdata-2.diff
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Attachment: GtkLinkButton.t.callback.diff
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