From: Tim Hunter <cyclists@...>
Date: 2004-07-01T07:47:56+09:00
Subject: Re: Ruby bug?

DaZoner wrote:

> Imagine you want to redefine a class at runtime. One way to do it is to
> load a different class definition at runtime.
> 
....
> 
> Using Ruby 1.8.1 the second printed line shows Bug to respond to both
> method1 and method2 even though bug2.rb does not define method1. Is this a
> bug?

This is Ruby working as designed. The 2nd file doesn't replace the Bug
class, it "opens" it for changes and adds a new method. All classes may be
opened and modified dynamically.

If you want to remove method1, look at undef_method or remove_method.