From: Gary Wright <wright_gary_r@...>
Date: 2006-03-15T06:41:56+09:00
Subject: Re: Alternate notation for eigenclass


On Mar 14, 2006, at 10:44 AM, dblack@wobblini.net wrote:
> I'm certainly a Kernel#s[ingleton_]class advocate, but I don't think
> it's obvious that this change in the behavior of the class keyword
> would follow, since:
>
>   class some_class_in_a_variable
>
> doesn't work.  I don't know the reasoning behind it.

Yes.  My comment regarding expressions after the 'class' keyword
was a more general comment on the syntax/semantics of a class/end block
than anything specific to singleton class notation.

I just find the semantics/syntax of the 'class' keyword a bit strange.

Here is another example:

	(class A; self; end)

is not a valid expression in a method definition but:

	(class << obj; self; end)

is just fine.  And as I said earlier, Ruby is quite happy to have an
expression as the superclass such as:

	class ProxyArray < DelgateClass(Array)
	end

I would think that

	class expression
	   #code
	end

would be analogous to

	expression.class_eval { # code }

Gary Wright