From: Daniel Berger <djberg96@...>
Date: 2008-09-28T10:05:38+09:00
Subject: Re: Help, Ruby 1.8.6-p287 broke my "use" library and I don't know why

David A. Black wrote:
> Hi --
> 
> On Sun, 28 Sep 2008, Daniel Berger wrote:
> 
>> On Sep 27, 3:14?pm, "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 
>>>> modules 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 = 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 = 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.

Thanks for that David. I was wondering what the underlying issue was.

Regards,

Dan