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view tests/cfold.lac @ 218:a3413288cce1
Signature ascription for type classes
author | Adam Chlipala <adamc@hcoop.net> |
---|---|
date | Sat, 16 Aug 2008 16:57:21 -0400 |
parents | 6431b315a1e3 |
children |
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con currier = fold (fn nm => fn t => fn acc => t -> acc) {} con greenCurryIngredients :: {Type} = [] con greenCurry = currier greenCurryIngredients val greenCurry : greenCurry = {} con redCurryIngredients = [A = int, B = string] con redCurry = currier redCurryIngredients val redCurry : redCurry = fn x : int => fn y : string => {} con yellowCurryIngredients = [A = string, B = int, C = float] con yellowCurry = currier yellowCurryIngredients val yellowCurry : yellowCurry = fn x => fn y => fn z => {} val main = yellowCurry