From: chr_news@... (chr_news@...)
Date: 2001-12-20T06:47:59+09:00
Subject: [ruby-talk:28992] Re: Sending a Proc to a remote dRuby object

Robert Feldt <feldt@ce.chalmers.se> wrote in message news:<Pine.GSO.4.21.0112061139350.19289-100000@explorer.ce.chalmers.se>...
> On Thu, 6 Dec 2001, Phil Tomson wrote:
> 
> > That would be nice...
> > 
> Check out [ruby-talk:22035]. It is Matju's and Guy Hurst's solution.
> 
> /RobertF

Hm interesting pointer - this solution is nice
but not free of problems ...

----------
class Proc
	attr_accessor :source
	class << self
		def _load(aString)
			foo=eval(aString)
			foo.source=aString
			foo
		end
	end
	def _dump(aDepth)
		source or raise "sourceless Proc cannot be dumped"
	end
end


module Kernel
	alias :old_proc :proc
	def Kernel.proc(string=nil,&b)
		if string and b then raise "bad argument, dude" end
		if string then
			Proc._load("proc{#{string}}")
		else
			old_proc(&b)
		end
	end
	def proc(string=nil,&b); Kernel.proc(string,&b); end
end

bla = "bla is not local to eval"
blu =  proc %{|| p bla }

begin
  blu[]
rescue NameError => mes
  puts mes # => undefined local variable or method `bla' for Proc:Class
end
----------

/Christoph