Hi frank It would really great if you send an article on this to the ESUG workshop. I can help reviewing the draft if you want. Stef
> Yes: http://ss3.gemstone.com/ss/Control.html > > Last time I checked I did need to add a shim (see the ControlPharo > package), but it did load cleanly and pass all its own tests. > > Control not only provides a convenient way of making partial > continuations (of the shift/reset sort, if you're familiar with the > literature), but also _delimited_ dynamic variables. As soon as you > start stack-slicing with partial continuations, you quickly find that > standard implementations of dynamic variables fail in all sorts of > nasty ways. Fundamentally, "normal" dynamic variables _cannot_ work > cleanly with partial continuations because they either close over too > much of the dynamic environment, or too little. > > Here's some reading on the topic: > > [1] http://okmij.org/ftp/Computation/dynamic-binding.html > [2] http://www.cs.rutgers.edu/~ccshan/dynscope/DDBinding.pdf > [3] > http://www.lshift.net/blog/2012/06/27/resumable-exceptions-can-macro-express-delimited-dynamic-variables > > frank > >>>>> Cheers, >>>>> -- Pavel >>>> >>>> >>> >>> >>> >>> -- >>> best, >>> Eliot >> >> >
