Re: Control.Exception

On Wed, Oct 8, 2008 at 1:19 AM, Simon Marlow <marlowsd <at> gmail.com> wrote:
> Johannes Waldmann wrote:
>>
>> with 6.10, the following does not typecheck:
>>
>> foo `Control.Exception.catch` \ _ -> return bar
>>
>> Ambiguous type variable `e' in the constraint:
>>      `Control.Exception.Exception e'
>>
>> It is probably bad programming style anyway but what is the workaround?
>
> As long as you're aware that it is bad programming style.  We deliberately
> didn't include an easy way to do this, because we want people to think about
> why they need to catch *all* exceptions (most of the time it's a bug).

Since the above is bad form, what should I be doing?  Could someone
please provide some examples or point me at the list of exceptions
that I can catch?  What about catching multiple types of exceptions?

Thanks,
Jason