From: Robert Dober <robert.dober@...>
Date: 2008-06-19T14:57:32+09:00
Subject: Re: Rather validate values or use exceptions?

On Thu, Jun 19, 2008 at 3:23 AM, Sam Smoot <ssmoot@gmail.com> wrote:

Another point might be which exceptions to rescue!
I once thought to be very smart and ducktypy by catching NameError
instead of checking for #respond_to?
The code really looked quite nice

def whatever
    o = some_way_to_get_it
    message = some_other_way_to_get_it
    o.send message
rescue NameError
    say_something_not_so_nice
end

But I had a mistype deep in the call stack of some_way_to_get_it. Was
one of the worst debugging session I ever had.

Cheers
Robert

-- 
http://ruby-smalltalk.blogspot.com/

---
Les mêmes questions qu'on se pose
On part vers où et vers qui
Et comme indice pas grand-chose
Des roses et des orties.
-
Francis Cabrel