From: Lars Olsson <lasso@...>
Date: 2007-02-14T23:35:06+09:00
Subject: Initializing dynamic instance methods

Hi list!

What's the best way to remedy the error/warning that the following
code produces?

class Parent
    def self.foo()
        module_eval("def foo(); @foo; end")
        module_eval("def foo=(newfoo); @foo = newfoo; end")
    end
end

class Child < Parent
    foo
end

c = Child.new
p c.foo

(running with ruby -w)
(eval):1: warning: instance variable @foo not initialized
nil

Sincerely

/lasso