From: Dave Thomas <dave@...>
Date: 2006-12-12T22:31:54+09:00
Subject: Re: Bug in Ruby or Pickaxe?


On Dec 12, 2006, at 4:10 AM, Robert Klemme wrote:

> I have low expectations with regard to the "else" clause but the  
> book clearly states that it is executed if there was no exception -  
> that includes the case where the block is left via a "return".   
> Behavior and description simply are not in sync, that's my point.


Interesting: I'd honestly never have thought of that interpretation.  
I guess in my mind, the semantics of return take precedence over most  
other semantics, and I explicitly note the times where that's not the  
case. Thanks for pointing out an alternative.

Do you feel I should also document the other places when a return  
could be issued? For example, in the description of a while loop, I  
say "executes body zero or more times as long as boolean-expression  
is true."  Should I add "or a return is executed or an exception is  
thrown" to this and similar descriptions?

I kind of feel that this would clutter the descriptions, and that  
most readers would make the assumption that return and exceptions  
would break the flow.  Is that an incorrect assumption?


Regards


Dave