From: Jim Weirich <jim@...>
Date: 2004-11-29T14:22:33+09:00
Subject: Re: What is Ruby for "pimpl"?

On Sunday 28 November 2004 11:59 pm, John Carter wrote:
First of all ...
> Sorry for thinking out loud, excuse me for existing.

No need to apologize.  Just didn't see where you were going with this one.

> On Mon, 29 Nov 2004, John Carter wrote:
> Looking at the error message I realized that class A used B which used C
> which used D which under certain error conditions that could never occur
> while testing A, used E.
>
> This left me feeling my program was too coupled. Why did the syntax of a
> module that I wasn't using block me?

The simplest thing to do would just move the require so that it executes only 
when it is really needed.

> -------file A.rb------------------------------------------------------
> class A
>    def foo
>      dostuff()
>    rescue BadThingsHappening => details
       require 'FixMe'    # Move the require to here
>      b = FixMe.new( details, x, y, z)
>      b.make_it_all_better
>    end
>
>    def bah
>    end
> end
> ----------------------------------------------------------------------

-- 
-- Jim Weirich    jim@weirichhouse.org     http://onestepback.org
-----------------------------------------------------------------
"Beware of bugs in the above code; I have only proved it correct, 
not tried it." -- Donald Knuth (in a memo to Peter van Emde Boas)