From: Daniel Berger <djberg96@...>
Date: 2007-02-10T01:45:54+09:00
Subject: Re: Help begin/rescue/ensure



On Feb 9, 2:06 am, Brian Candler <B.Cand...@pobox.com> wrote:
> On Fri, Feb 09, 2007 at 02:20:30PM +0900, S Kanakakorn wrote:
> > require 'rubygems'
> > require 'net/ssh'
>
> > begin
> >  session = Net::SSH.start('aaaa-lnx', :password=>'xyz',
> >              :username=>'root',:timeout=>5)
> > rescue
> >  puts 'cannot connect '
> > ensure
> >  puts 'reach ensure point'
> > end
> > puts 'at last'
> ...
> > What did I do wrong ?
>
> A bare "rescue" doesn't catch all exceptions, only those which are
> subclasses of StandardError. Change to:
>
>   rescue Exception

Given how often this issue appears on the mailing list, I'm beginning
to think that a bare rescue should just rescue Exception. That seems
to be what most people expect it to do.

Is there a downside to this idea?

Dan