From: Jakub Travnik <j.travnik@...>
Date: 2002-06-12T20:21:46+09:00
Subject: Re: Trick or Bug?

Nikodemus Siivola wrote:
> All this talk of block local variables reminded me of a funny trick...
> 
> As you know, receivers in ruby cannot change their class? No become, etc.
> Right?
> 
> Wrong:
> 
> #!/usr/bin/env ruby
> a = proc { a = 1 }
> puts "a is a #{a.class}"
> a.call
> puts "a is a #{a.class}"
> 

no, it does change only one variable, not object variable is pointing to

source:
-----------------------------
def test(a)
   puts "a is a #{a.class}"
   a.call
   puts "a is a #{a.class}"
end
a = proc { a = 1 }
test a
-----------------------------

output:
-----------------------------
a is a Proc
a is a Proc
-----------------------------

Jakub Travnik
jabber://jtra@jabber.com