From: Yusuke ENDOH <mame@...>
Date: 2010-03-03T19:16:48+09:00
Subject: [ruby-core:28439] Re: [Bug #1893] Recursive Enumerable#join is 	surprising

Hi,

2010/3/3 Yukihiro Matsumoto <matz@ruby-lang.org>:
> |I guess adding Enumerator#to_ary is a right solution.
>
> I don't think so, supplying to_ary means that object can be considered
> as an array, which is not always the case.


Then, Array#join should not flatten Enumerator, I think.
Otherwise, we need the 3rd concept (than to_ary and to_a) such as
to_join.

At least, the change seems to actually cause compatibility issue
in real world.  Should we fix or revert anyway?

-- 
Yusuke ENDOH <mame@tsg.ne.jp>