From: Robert Klemme <bob.news@...>
Date: 2003-12-09T20:02:01+09:00
Subject: Re: WeakRef and Object#hash


"ts" <decoux@moulon.inra.fr> schrieb im Newsbeitrag
news:200312091017.hB9AHYH22207@moulon.inra.fr...
> >>>>> "R" == Robert Klemme <bob.news@gmx.net> writes:
>
> R> What can we do about this in Ruby if we want the instance to be
GC'ed?  Is
> R> there a workaround at least for testing purposes?
>
>  Like has said matz, nothing.
>
>  But there is something worst, be carefull with weakref : the example
was
>  given in ruby-core. Someone created weakrefs and stored the ID of the
>  reference in a hash and when he wanted to retrieve the object he called
>  _id2ref. His algorithm was :
>    * _id2ref raise an error ==> this mean that the object was recycled
>    * otherwise it retrieve the original object.

Clearly a bad idea.

    robert