From: nobu@...
Date: 2006-07-07T00:10:11+09:00
Subject: Re: GC oddness

Hi,

At Thu, 6 Jul 2006 23:58:27 +0900,
Alex Young wrote in [ruby-talk:200382]:
> Can someone smarter tell me why this fails?  I'm expecting the TestDir 
> to get GC'd when I call GC.start in the test, but something's obviously 
> keeping a reference lying around.  I just can't see what it is...

The finalizer proc refers testdir.

> ----------------------
> require 'test/unit'
> require 'fileutils'
> 
> class TestDir
>    def TestDir.finalizer(dir)
       proc{|id|
>        FileUtils.rm_rf(dir)
>      }
>    end
>    def initialize(dir)
>      FileUtils.mkdir(dir)
       ObjectSpace.define_finalizer(self, TestDir.finalizer(dir))
>    end
> end

-- 
Nobu Nakada