From: Sebastian Hungerecker <sepp2k@...>
Date: 2009-04-02T07:15:11+09:00
Subject: Re: When to use instance variables @

Adam Gardner wrote:
> It's also mandatory if you have a method with the same name as a local
> variable, or whose name begins with a capital letter (although frankly,
> you probably should just change the method name or the variable name in
> these cases)

In that case you can just add parens instead of prefixing self:
def x
  42
end
x=23
[x, x(), self.x] #=> [23, 42, 42]