Re: RFC 80 (v1): Exception objects and classes for builtins

[Graham Barr]

On Thu, Aug 10, 2000 at 02:56:59AM -0500, Jonathan Scott Duff wrote:
> Peter Scott writes:
> >     try {
> >         # fragile code
> >     } catch Exception::IO with {
> >         # handle IO exceptions
> >     } catch Exception::Socket with {
> >         # handle network exceptions
> >     } otherwise {
> >         # handle other exceptions
> >     };
> 
> What would the difference between that and this be?
> 
>       try {
>               # fragile code
>       } catch {                       # catch ALL exceptions
>           switch ($EXCEPTION->name) {
>               case IO { ... }
>               case Socket { ... }
>           }
>       }

I was more thinking of

        eval {
                # fragile code
        }
        else {                  # catch ALL exceptions
            switch ($@) {
                case __->isa('IO')     { ... }
                case __->isa('Socket') { ... }
                else                   { ... }
            }
        }
        continue {
           # code always executed (ie finally)
        }

And the only new keywords are for the switch statement.

Graham.