Cool. You know which types to consider because jhc is a whole-program
compiler?
Given the whole program, why not monomorphize, and inline away all of the
dictionaries?
- Conal
On 5/4/07, John Meacham
On Fri, May 04, 2007 at 03:07:41PM -0700, Conal Elliott wrote:
Does anyone know what became of Dictionary-free Overloading by Partial Evaluation http://web.cecs.pdx.edu/%7Empj/pubs/pepm94.html? Is it impractical for some reason?
jhc also uses a dictionary free approach, doing a case directly on the type parameter.
The nice thing about this is that _all_ methods can be determined by a single case evaluation, because finding out the right instance for any method will determine the right instance for all other methods too for a given type. The standard case-of-known-value optimization takes care of later scrutinizations (method lookups) on the same type.
John
-- John Meacham - ⑆repetae.net⑆john⑈ _______________________________________________ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users