From: gwtmp01@...
Date: 2007-01-31T01:46:46+09:00
Subject: Re: Collaborative Ruby Language Specification


On Jan 30, 2007, at 10:38 AM, John Lam (CLR) wrote:
> On the CLR front (and I'm pretty sure on the JVM front as well)  
> continuations pose a very major problem for implementers. It's a  
> difficult problem to solve while preserving decent performance  
> characteristics. And the approaches that have been attempted in the  
> past (like exploiting the exception facilities of the runtime)  
> don't hold forth the promise of future performance improvements.

Do you have any pointers to resources (papers, blog entries, source  
code) that elaborate on the difficulties of implementing  
continuations?  Is it difficult in the theoretical sense or simply  
difficult to implement on top of VMs that were designed without  
continuations in mind?


Gary Wright