From: "David A. Black" <dblack@...>
Date: 2005-08-08T01:50:54+09:00
Subject: Re: Adding yet another Array.new form

Hi --

On Sun, 7 Aug 2005, Christian Neukirchen wrote:

> Nikolai Weibull <mailing-lists.ruby-talk@rawuncut.elitemail.org> writes:
>
>> Lately I've been using the Kernel.returning method from Rails to write
>> it as
>>
>> def a
>>   returning ary = [] do
>>     ... construct ary by adding elements to it ...
>>   end
>> end
>>
[...]
>
> I'd rather vote in favor of including #returning to the Ruby core.
> It is a very helpful method to DRY.

It feels a bit side-effect-dependent-ish, as written.  It might be
nicer with a more traditional yield/block param syntax:

   returning [] do |ary| ... end

That shows more of the separation between the fact that you're
returning an array, and the fact that you're assigning the name ary to
that array for use inside the block.


David

-- 
David A. Black
dblack@wobblini.net