From: Trans <transfire@...>
Date: 2005-01-27T01:00:56+09:00
Subject: Re: attr

Update:

I've now fixed #attr to be backward compatible. The only caveat being
that one mustuse true (or false or nil) for it to work. ie.

|  attr :a, "as if it were true"

will not work. But as Florian pointed out, this is fairly
insignificant.

The feature BTW is a bit extended. It can now take more than one
attribute as follows:

|  attr :a, :b, :c, true

And all three will get writers too.

One last thing, it doesn't just create writers but the
"contra-positive" of the attributes you can give it. In other words:

|  attr :a=, true

Will also create a reader. And

attr :a?, true

Will get a writer (#a=).

Note that casting can not be used with this notation. So

attr :a => :to_s, true

Will not work. This is b/c casted attributes must always be at then end
of the argument list (it's a hash after all).

Oh, one last thing. All the "attr_*" methods are still there but now
they accept casting and I've added #attr_tester (for #a? methods)

Hope you like. It will be available when I release Carats in a month or
two. (Sooner if I can find a helping hand.)

T.