From: Its Me <itsme213@...>
Date: 2004-04-24T00:29:16+09:00
Subject: attr_accessor vs. local variable

Ruby not seem to predictably recognize attribute accessors (including
setters) as such unless preceded by "self.attr".  But it recognizes other
self messages fine. I suspect this has something to do with its rule on what
is deemed a local variable.

What rule / ambiguity causes this?

class A
  attr_accessor :x, :y

  def initialize
    p x      # local or @x?
    x=5      # does not call self.x=
    self.y=5      # sets @y
    foo          # calls self.foo
  end

  def foo
    p 'foo'
  end

end

p A.new.x
p A.new.y