From: Josef 'Jupp' Schugt <jupp@...>
Date: 2003-07-04T22:43:39+09:00
Subject: Re: Using & for arrays of objects

Saluton!

* Rudolf Polzer; 2003-07-04, 09:43 UTC:
> Scripsit ille �Robert Klemme� <bob.news@gmx.net>:
> > 
> > > class Human < Beer
> > 
> > Hm, I find this modeling a tad bit unrealistic.
> 
> Beer = Be-er = someone who is ^_^

Could also mean a BeOS user.

> > In fact we both made an error here: you need a factory and a
> > helper class (both sub classes of Human) to create a new Human.
>
> Which Ruby doesn't support: an object cannot be created without
> using a constructor.

Well, the correct terminus technicus in this case is *creator*, not
*constructor*. An instance of Human is made by a creator that
(depending on circumstances) takes up to two instances of Human to
form a new instance of Human as in (for details see Gen 2 and Gen 4):

adam  = Human.new()
eve   = Human.new(adam)
kain  = Human.new(adam,eve)

The single-argument form not requires h.gender == male as can be seen
from

jesus = Human.new(mary)

> So how is the "first" object created?

That question does exist as long as philosophy. I think that we are
not expected to solve this here:

Gis,

Josef 'Jupp' Schugt
-- 
Someone even submitted a fingerprint for Debian Linux running on the
Microsoft Xbox. You have to love that irony :).
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