From: Hal Fulton <hal9000@...>
Date: 2003-12-15T08:49:41+09:00
Subject: Re: Has a Module been defined?

Hadmut Danisch wrote:
> Hi,
> 
> how can I check whether a Module/Class with a given 
> name has already been defined?

Here is my first thought. There might be a problem with it,
but it works on my simple tests.

   if defined?(Foo) && Foo.is_a?(Module)

Hal