tranma

{-# LANGUAGE TupleSections, FlexibleInstances #-}
-- Manipulate graphs for metadata generation
--  WARNING: everything in here is REALLY REALLY REALLY SLOW
--
module Snail
       ( Rel(..)
       , fromList, toList
       , allR, differenceR, unionR, composeR, transitiveR
       , transClosure

cartazio

class (Ord (Key table)) => OrderedKV table where 
     type  Key table :: * 
     type Value table ::*
     type Address table :: * 

     keyRange :: table -> (Key table, Key table)
     key2Address :: table -> (Key table) -> Maybe (Address table)
     address2Key :: table -> (Address table) -> Key Table
     nextAddress :: table -> Address table -> Maybe (Address table)
     nextKey :: table -> Key table -> Maybe (Address table) ->Maybe (Key table, Address table  )