On Wed, Sep 8, 2010 at 9:43 PM, Gregory Crosswhite <[email protected]> wrote: > > Of course, if someone can prove to me that I am wrong and that GotoT > semantics can be implemented with continuations, then I would welcome > this information. :-) >
Here's an implementation of GotoT with double-continuations: http://hpaste.org/fastcgi/hpaste.fcgi/view?id=29823 I also have a sketch of me trying to use a single-continuation, but I was defeated: http://hpaste.org/fastcgi/hpaste.fcgi/view?id=29824 The idea is that on 'goto', we throw away the passed down continuation in favor of an alternate return. The double-continuation approach is a bit overkill since we don't have the equivalent of 'catch', to add local scope to an alternate return. My single continuation approach has two type-check errors I haven't been able to understand yet, but hopefully you can see what I was going for. Antoine _______________________________________________ Haskell-Cafe mailing list [email protected] http://www.haskell.org/mailman/listinfo/haskell-cafe
