From: Harold Hausman <hhausman@...>
Date: 2006-02-24T01:39:11+09:00
Subject: Re: How to evaluate file as Ruby code?

I think rescue by default only catches StandardError (and descendants).

Maybe:

rescue Exception => ex

Will catch this one?

-Harold

On 2/23/06, dblack@wobblini.net <dblack@wobblini.net> wrote:
> Hi --
>
> On Thu, 23 Feb 2006, Ronald Fischer wrote:
>
> >> load <file> will load and evaluate the file, it will reload and
> >> re-evaluate.
> >
> > This is exactly what I'm looking for (and for my problem it is
> > OK that I revert to local variables).
> >
> > But now I have a new problem: Exceptions thrown by 'load' can not
> > be caught!
> >
> > For example,
> >
> > begin
> >   load ".defaultpar"
> > rescue
> >   puts "file not found"
> > end
> >
> > If the file does not exist, I get the error message
> >
> >  in `load': no such file to load -- .defaultpar (LoadError)
> >
> > Of course I can circumvent it by testing before for the existence
> > of the file, but I wonder how I can find (from the Ruby specification),
> > which exceptions can be caught by "rescue" and which ones can not.
>
> I believe rescue on its own catches RuntimeError and its descendants.
> If you want to rescue something else, you can do:
>
>   rescue LoadError
>
>
> David
>
> --
> David A. Black (dblack@wobblini.net)
> Ruby Power and Light (http://www.rubypowerandlight.com)
>
> "Ruby for Rails" chapters now available
> from Manning Early Access Program! http://www.manning.com/books/black
>
>