From: Eric Christopherson <echristopherson@...>
Date: 2012-02-06T16:01:15+09:00
Subject: Re: inheritance one more time

On Sun, Feb 5, 2012 at 7:21 PM, luk malcik <aport99@gmail.com> wrote:

> Square = Struct.new(:x,:y,:a) do

Oh, right -- I forgot Square is a struct with a and a= defined on it.
Since you have
  self.b = b
you need to define b=, e.g. by defining an accessor:
  attr_accessor :b