From: Paul Brannan <pbrannan@...>
Date: 2007-09-04T22:28:02+09:00
Subject: Re: with

On Tue, Sep 04, 2007 at 06:50:43AM +0900, Matthias W?chter wrote:
> > Anyway, I do wonder whether all this can be nicely solved by using local
> > variables.  Basically #with does nothing else than binding a value to a
> > local variable with limited scope.
> 
> Ruby tries to avoid local variables wherever it can by chaining
> iterators together like in file-open-each-line-gsub. I tried to allow
> a block to be used for non-enumerable types as well.

Ruby doesn't try to avoid local variables; this is something you have
done.  IMO it's not a good idea.  If there's a bug anywhere in your
chain and one of the methods you call returns the wrong type (nil, for
example), then debugging becomes more difficult.

Paul