From: William Djaja Tjokroaminata <billtj@...>
Date: 2002-09-29T08:10:06+09:00
Subject: Re: alias versus method_missing

Hi Lyle,

This is just an example; I am sure you can improve it further according to
your need.  Here we use one of the powers of scripting/interpreted
language, which is that we can generate code on-the-fly.

Regards,

Bill
-------------------
class Base
	def foo
		puts "inside Base#foo"
	end
end

class Derived < Base
	def foo
		puts "inside Derived#foo"
	end
end

class Final < Derived
	def foo
		puts "inside Final#foo"
	end
end

def set_alias (child)
	until child == Object
		eval "class #{child.name}\n alias bar foo\n end"
		child = child.superclass
	end
end

set_alias (Final)
Final.new.bar
Derived.new.bar
Base.new.bar

===========================================================================
Lyle Johnson <lyle@users.sourceforge.net> wrote:
> William Djaja Tjokroaminata wrote:

>> How about starting with the great-great-grandchild, and then 'eval'ing the
>> alias all the way up to the root?

> OK, I am too dense to understand what you're suggesting ;) Could you 
> maybe give me a brief example (in code) of the approach you're suggesting?