From: Brian Candler <B.Candler@...>
Date: 2003-07-01T21:42:39+09:00
Subject: Re: inifinity recursion && test/unit

On Tue, Jul 01, 2003 at 08:38:42PM +0900, Andrey Kulinich wrote:
> Originally that was an error. Code:
> -
> module Recur
>      def self.new
>          Recur.new
>      end
> 
>      class Recur
>      end
> end
> 
> Recur.new

OK, so you have defined:
- a module Recur
- a class Recur::Recur
- a module function Recur::new which calls Recur::Recur.new
  (it looks in its own namespace before trying enclosing namespaces,
   so Recur::Recur.new is used if it exists; if it doesn't then it will
   find Recur.new in the top-level namespace)

So this is not recursive.

> But after that I rename class Recur to Another and forgot to change in 
> def self.new.
> Without test/unit ruby said that there is an infinite recursion. Is that 
> a bug or a feature?

Neither, it's correct behaviour. If class Recur no longer exists, then the
call to 'Recur.new' will refer to the function 'new' in module Recur, which
is itself (hence infinitely recursive).

Regards,

Brian.