From: "David A. Black" <dblack@...>
Date: 2005-04-20T20:19:34+09:00
Subject: Re: [ANN] Article: Seeing Metaclasses Clearly

Hi --

On Wed, 20 Apr 2005, Pit Capitain wrote:

> David A. Black schrieb:
>> 
>> irb(main):001:0> a = ""
>> => ""
>> irb(main):002:0> c = (class << a; self; end)
>> => #<Class:#<String:0x401f8b6c>>
>> irb(main):003:0> a.instance_of?(c)
>> => false
>> irb(main):004:0> a.instance_of?(String)
>> => true
>> irb(main):005:0> s = class << String; self; end
>> => #<Class:String>
>> irb(main):006:0> String.instance_of?(s)
>> => false
>> irb(main):007:0> String.instance_of?(Class)
>> => true
>
> But note that
>
>  irb(main):001:0> a = ""
>  => ""
>  irb(main):002:0> c = (class << a; self; end)
>  => #<Class:#<String:0x2dae6d0>>
>  irb(main):003:0> c === a
>  => true

Yes, a.kind_of(c) is true, but that's never been a one-only
relationship.


David

-- 
David A. Black
dblack@wobblini.net