I thought to call a Glib::Flags as_arrayref directly like
myexpression()->as_arrayref
inspired by other as_arrayref funcs, and because it seemed a little
cleaner than lots of brackets
[ {myexpression()}]
Alas as_arrayref requires the "overload" three args. I wonder if that
could be relaxed per below. The test case is actually a good example of
the method looking cleaner than the overload, though no doubt it's a
matter of personal preference.
I wondered if the "PROTOTYPE:" in the xs was meant to allow this
already, except it doesn't. :-) That's something else is it?
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-- "Never bolt your door with a boiled carrot."