From: "David A. Black" <dblack@...>
Date: 2005-10-05T22:58:02+09:00
Subject: Re: On NullClass or FalseClass#method_missing

Hi --

On Wed, 5 Oct 2005, TRANS wrote:

> Hi--
>
> George Mischovitis' Nitro project uses OprnStruct-type containers
> extensively for their end-user ease of use. I have been working with
> him to make the solution more robust. ONe difficulty we've run into is
> avoiding an error on an unregonized string of calls:
>
>  o = OpenStructLikeClass
>  o.x     #=> nil
>  o.x.y  #=> NoMethodError
>
> George needs:
>
>  o = OpenStructLikeClass
>  o.x     #=> nil
>  o.x.y  #=> nil

Well, you could do:

irb(main):001:0> def nil.method_missing(m); nil; end
=> nil
irb(main):002:0> nil.x.y.z
=> nil

but I'm not a big fan of messing with nil.  Its behavior is
standardized and heavily depended upon.


David

-- 
David A. Black
dblack@wobblini.net