Excerpts from Dmitry Karasik's message of Wed Jan 13 12:27:17 -0500 2010:
> > How do you know that the first is setting a single-element list and the
> > second
> > is setting an empty list?
>
> context = (( 1 == @_ and ref($_[0]) eq 'ARRAY') ? 'array' : 'list')
That doesn't actually answer the question.
Suppose you have a list of arrayrefs:
$obj->prop([ 1, 'one' ], [ 2, 'two' ], [ 3, 'three', 'drei' ]);
You need to mutate this list for some reason,
@list = $obj->prop;
@list = grep { @$_ > 2 } @list;
and save it back in the object.
$obj->prop(@list);
Oops, this turns out to be
$obj->prop([ 3, 'three', 'drei' ])
so your heuristic guesses that it's meant to dereference the array, which is
wrong.
There is no way to get this right with the interface you are suggesting.
> > This doesn't seem like good design to me; there's a reason that auto_deref
> > is
> > deprecated.
>
> Thank you for sharing your thoughts on the design; I however would rather much
> more appreciate help with the implementation instead.
Read Moose::Meta::Attribute and Class::MOP::Attribute and all the method
metaclasses they use. You are shooting yourself in the foot; I don't feel like
spending the time to walk you through pulling the trigger.
Also, please reply on-list to list messages unless you're going on a tangent.
hdp.
