[Reality] Containment - barriers to implementation

[exarkun at divmod.com]

On Sun, 04 Apr 2004 01:56:58 -0500, Christopher Armstrong <radix at twistedmatrix.com> wrote:
>
> [snip]
> 
> Hmm, the last bit kinda annoys me. Maybe we should allow the collectors 
> to implement some of those 'blocking' semantics themselves ("Am I 
> closed? If so, don't let things through") with the option for the 
> criterion to override them?

  Override the default behavior?  But then you need a default behavior... which should be... what?

  Jp