From: Roland Swingler <roland.swingler@...>
Date: 2007-03-03T22:00:07+09:00
Subject: Question about attr_accessor

Hi,

I came across something unexpected today, and wondered if anyone could
explain it to me. If I have this class:

class Foo
  def initialize
    @bar = 0
  end

  attr_accessor :bar

  def add
    bar += 1
  end
end

then the "add" function doesn't work - it complains about a nil
object. You have to specifically put "self.bar += 1". Why is that - I
thought that the "self" was implicitly there?

Doing:

f = Foo.new
f.add

works as the class stands, so you only seem to need the self if you
are calling the accessor from within your class.

Confused...

TIA
Roland