From: mortee <mortee.lists@...>
Date: 2007-10-10T20:51:06+09:00
Subject: Re: will #in? be in ruby2? (was Re: Finding shared elements between   to arrays.)

David A. Black wrote:
> Hi --
> 
> On Wed, 10 Oct 2007, mortee wrote:
>> Why don't you just define #in? in Object yourself, and then you can use
>> it anywhere in your code. That's something I really like about Ruby: if
>> I'm missing something from a core or library class, I can just drop it
>> in for my own use.
> 
> It's not risk-free, though, since if two people define a given method
> differently, one of them will get trampled on.

Yeah, that's what the other thread "Open-Closed..." is about in part:
method name collisions whithin a module/class coming from different sources.

I think that this problem should be solved somehow instead of avoiding
the power of ability to extend arbitrary classes. I'm absolutely aware
of the issue though.

mortee