From: "David A. Black" <dblack@...>
Date: 2008-09-28T09:47:22+09:00
Subject: Re: Help, Ruby 1.8.6-p287 broke my "use" library and I don't know why

--1926193751-2083433356-1222562880=:8425
Content-Type: MULTIPART/MIXED; BOUNDARY="1926193751-2083433356-1222562880=:8425"

  This message is in MIME format.  The first part should be readable text,
  while the remaining parts are likely unreadable without MIME-aware tools.

--1926193751-2083433356-1222562880=:8425
Content-Type: TEXT/PLAIN; charset=X-UNKNOWN; format=flowed
Content-Transfer-Encoding: QUOTED-PRINTABLE

Hi --

On Sun, 28 Sep 2008, Daniel Berger wrote:

> On Sep 27, 3:14=A0pm, "David A. Black" <dbl...@rubypal.com> wrote:
>> Hi Dan --
>>
>> On Sun, 28 Sep 2008, Daniel Berger wrote:
>>> Hi everyone,
>>
>>> I need help!
>>
>>> I've got a library called "use" that let's you mixin methods from modul=
es in
>>> a fine-grained fashion. Unfortunately, something broke it between Ruby
>>> 1.8.6-p111 and Ruby 1.8.6-p287.
>>
>>> It may have something to do with the way I autogenerate some methods in=
 the
>>> windows-api library, as simple cases still work fine, but I'm not sure =
how or
>>> why.
>>
>> Do you have a non-Windows example where it does this?
>
> Nobu's example summarizes the problem:
>
> require 'use'
>
> module X
>   XXX =3D 1
>   def xxx
>      XXX
>   end
> end
>
> class Foo
>   use X
> end
>
> Foo.new.xxx

For what it's worth, here's an even simpler example, not involving
your "use" library:

   class Class
     def myuse(mod)
       include mod.clone
     end
   end

   module X
     XXX =3D 1
     def xxx
       XXX
     end
   end

   class Foo
     myuse X
   end

   Foo.new.xxx

This works with p230 but not p287. I guess it has to do with module
cloning and constants, but I haven't tracked it down beyond that.


David

--=20
Rails training from David A. Black and Ruby Power and Light:
   Intro to Ruby on Rails  January 12-15   Fort Lauderdale, FL
   Advancing with Rails    January 19-22   Fort Lauderdale, FL *
   * Co-taught with Patrick Ewing!
See http://www.rubypal.com for details and updates!
--1926193751-2083433356-1222562880=:8425--
--1926193751-2083433356-1222562880=:8425--