Re: $flags->as_arrayref directly

[Torsten Schoenfeld <kaffeetisch gmx de>]

Kevin Ryde wrote:
> > I don't know why the PROTOTYPE: line doesn't have the desired effect.
>
> I guess it only sticks a prototype on the sub, without changing how the
> generated code actually checks the args.  Does that sound right?  In
> which case if as_arrayref is only ever used as a method then I guess a
> prototype has no effect.

Yeah, I think that sounds right.  But still, the prototypes have been in stable 
releases, and they don't seem to do any harm -- so I don't think we should 
remove them.

> The one on bool() likewise I suppose.  Is that func meant to be used as
> a method?  Maybe it could helpfully lose b and swap the same
> as_arrayref.  For that matter the other methods could similarly lose or
> default to false their "swap".  union() and intersect() in particular
> seem likely candidates to call as methods, for those who might prefer a
> name over the operators.

Yep, that would indeed make sense.  Patches welcome!