From: Robert Klemme <bob.news@...>
Date: 2005-11-03T02:57:08+09:00
Subject: Re: Trapping errors.

Hugh Sasse wrote:
> On Thu, 3 Nov 2005, Robert Klemme wrote:
>
>> Hugh Sasse wrote:
>>> I see my changes to fileutils are now in the Ruby CVS.
>>> However, even with
>>>   rescue Exception, SystemCallError => e
>>> or
>>>   rescue Exception, Errno::EACCES, Errno::EBUSY => e
>>>
>>> I still cannot trap this error.  From the call stack this part of
>>> the code is being used, so why won't the error cause ruby to go back
>>> up the callstack until it finds this rescue clause?
>>
>> Maybe there's another rescue clause that is closer to the place
>> where the exception is thrown...
>
> But unless I have completely misunderstood the point of rescue, even
> if that calls raise, the exception will still be caught by my
> enclosing rescue.

But who guarantees that the other rescue clause actually throws again?  If
it doesn't you can't catch it.

....
rescue Exception => e
  puts "Catch me if you can >:-}"
end

;-)

Cheers

    robert