From: Joel VanderWerf <vjoel@...>
Date: 2005-08-11T14:58:30+09:00
Subject: Re: Bindings at the time of Exceptions

Joel VanderWerf wrote:
> No trickery, but you do have to have the cooperation of the code which
> raises:

And just for fun, because it's late here...

def foo
  a = "value of a"
  cc = nil
  callcc{|cc|}
  if a
    raise StandardError, binding
  else
    return "normally"
  end
end

def bar
  foo
rescue => e
  return e.message
end

b = bar

case b
when Binding
  eval("a=nil", b)
  eval("cc", b).call
else
  puts "Exiting #{b}"
end

-- 
      vjoel : Joel VanderWerf : path berkeley edu : 510 665 3407