From: Neil Hodgson <nhodgson@...>
Date: 2001-12-04T09:42:00+09:00
Subject: [ruby-talk:27392] Re: thoughts for future Ruby with bytecode VM

MikkelFJ:

> One of the (theoretic?) features of Stackless Python continuations is that
> you can suspend a point of execution and resume it somewhere else.

   This works really nicely for pure Python but if you have C extension
stack frames then they are hard to wrap up and remote. External resources
such as open files and OS level semaphores need special treatment or at
least a decent exception. It may be possible with cooperation from the C
extension and a stack frame wrapping API. This was explored a bit at the
last Python conference where the stackless features were ranked from easy to
hard and only the easiest, simple generators ("yield"), was implemented in
core Python.

   Neil