From: Eugene Ventimiglia <eventi@...>
Date: 2001-03-01T02:52:23+09:00
Subject: [ruby-talk:11793] Re: How do I reach members from a Proc?



> > One more thing:
> >   How do I pass parameters to @action?  Code's modified below
> 
> Currently you can't (although that was an extension that was briefly
> discussed. Matz?)
> 
> If you need to do that, I'd sugges taking Matz's approach.

#Here's the same using Matz's approach:

class Hello
	def install(&p)
		@action=p
	end
	def do(thing)

		@action.call(self,thing)
#		instance_eval(&@action(thing)) #???

	end
	def help(frotz)
		puts "in help: " + frotz.to_s
	end
end
	
h=Hello.new
h.install {|h,frump|
	puts "in proc: " + frump.to_s
	h.help frump
}
h.do("fish")

####
It works, but it's a shame to have to pass the instance all the way in...