From: "David A. Black" <dblack@...>
Date: 2005-08-27T01:59:58+09:00
Subject: Re: Method behaves differently when called using #send

Hi --

On Sat, 27 Aug 2005, Ron M wrote:

> David A. Black wrote:
>>> 
>>>>> es.y
>>> => 30.468257171342
>
>>>>> es.send(:y)
>>> ArgumentError: wrong number of arguments (0 for 1)
>>>        from (irb):7:in `y'
>>>        from (irb):7
>
>
>> I wonder whether it's YAML-related.  The YAML library defines
>> Kernel#y.  I'm not sure why you'd get that error message from it
>> though, unless maybe AR hooks into it in some way.
>
>
> I guess one part of my question was more along the lines of
>
> "is it a bug or a feature I don't understand, that
> calling methods through "#send(:name)" vs ".name"
> seem to find different methods"

Certainly this:

   ruby -e 'def x; end; x; send(:x)'

should never give you an ArgumentError, for any valid method name in
place of x.  If it does, there's a bug somewhere.

If, however, something in your code, or code that yours loads, has
changed things, such that you get that error, then it's not a bug.

> Regarding the specifics of what weird stuff AR is doing,
> would this be a good place to ask, or would the rails
> mailing list be better?

Maybe -- you could try both.


David

-- 
David A. Black
dblack@wobblini.net