[Haskell-cafe] two type-level programming questions

2008-12-04 Thread Nicolas Frisby
1) Type families, associated types, synonyms... can anything replace the use of TypeCast for explicit instance selection? Section 2, bullet 4 of http://www.haskell.org/haskellwiki/GHC/AdvancedOverlap indicates a negative response. Any other ideas? 2) Any progress/options for kind polymorphism in i

Re: [Haskell-cafe] two type-level programming questions

2008-12-04 Thread Ryan Ingram
Sort of. I believe you can use type equality constraints to replace the use of TypeCast; that is, in any code that looks like: > instance TypeCast a HTrue => ... you can write > instance (a ~ HTrue) => ... (at least, it has worked for me that way) This at least makes me feel a bit more monadi

Re: [Haskell-cafe] two type-level programming questions

2008-12-04 Thread Jason Dusek
More monadic? -- _jsn ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] two type-level programming questions

2008-12-04 Thread Ryan Ingram
See slide 40 of "Weaing the Hair Shirt: A Retrospective on Haskell", Simon Peyton-Jones, POPL 2003 http://research.microsoft.com/Users/simonpj/papers/haskell-retrospective/index.htm -- ryan On Thu, Dec 4, 2008 at 7:04 PM, Jason Dusek <[EMAIL PROTECTED]> wrote: > More monadic? > > -- > _jsn >