From: Philipp Meier <meier@...>
Date: 2002-09-13T04:19:50+09:00
Subject: Re: General ?s about a couple of Ruby features


--dkEUBIird37B8yKS
Content-Type: text/plain; charset=iso-8859-1
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

On Fri, Sep 13, 2002 at 03:20:35AM +0900, Andrew K wrote:
>=20
> "Matt Gushee" <mgushee@havenrock.com> wrote in message
> news:20020912172550.GB910@swordfish...
> >  * The ability to modify existing class and module definitions is
> >    obviously interesting, but what is it *useful* for? I can see
> >    that this feature allows you to change the behavior of all instances
> >    of a class; what, if any, other benefits are there? Does anyone have
> >    some real-world application scenarios where this feature is useful?
> >
>=20
> I'm relatively new to the language as well, but doesn't this feature make=
 it
> extremely easy to add methods to existing Ruby types for example?  That
> usage would seem to be pretty common to me.

attr_reader and attr_write use the dynamic declaration of methods e.g.
And Date defines a method :once which make a method cache some internal
calculation.

-billy.

--=20
Meisterbohne       S=F6flinger Stra=DFe 100          Tel: +49-731-399 499-0
   eL=F6sungen       89077 Ulm                     Fax: +49-731-399 499-9

--dkEUBIird37B8yKS
Content-Type: application/pgp-signature
Content-Disposition: inline

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.0.7 (GNU/Linux)

iD8DBQE9gOj4fBriNoqItSYRAuKLAJ470y9ETSGNa58t/0wV5Ke5ok/mrwCdF3d0
x6gzfx0sBGv7pvRPtIBSA94=
=KdRU
-----END PGP SIGNATURE-----

--dkEUBIird37B8yKS--