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-- (c) Bartosz Nitka, Facebook, 2015
-- |
-- Specialised deterministic sets, for things with @Uniques@
--
-- Based on @UniqDFMs@ (as you would expect).
-- See Note [Deterministic UniqFM] in UniqDFM for explanation why we need it.
--
-- Basically, the things need to be in class @Uniquable@.
module UniqDSet (
-- * Unique set type
UniqDSet, -- type synonym for UniqFM a
-- ** Manipulating these sets
delOneFromUniqDSet, delListFromUniqDSet,
emptyUniqDSet,
unitUniqDSet,
mkUniqDSet,
addOneToUniqDSet, addListToUniqDSet,
unionUniqDSets, unionManyUniqDSets,
minusUniqDSet, uniqDSetMinusUniqSet,
intersectUniqDSets,
intersectsUniqDSets,
foldUniqDSet,
elementOfUniqDSet,
filterUniqDSet,
sizeUniqDSet,
isEmptyUniqDSet,
lookupUniqDSet,
uniqDSetToList,
partitionUniqDSet
) where
import UniqDFM
import UniqSet
import Unique
type UniqDSet a = UniqDFM a
emptyUniqDSet :: UniqDSet a
emptyUniqDSet = emptyUDFM
unitUniqDSet :: Uniquable a => a -> UniqDSet a
unitUniqDSet x = unitUDFM x x
mkUniqDSet :: Uniquable a => [a] -> UniqDSet a
mkUniqDSet = foldl addOneToUniqDSet emptyUniqDSet
addOneToUniqDSet :: Uniquable a => UniqDSet a -> a -> UniqDSet a
addOneToUniqDSet set x = addToUDFM set x x
addListToUniqDSet :: Uniquable a => UniqDSet a -> [a] -> UniqDSet a
addListToUniqDSet = foldl addOneToUniqDSet
delOneFromUniqDSet :: Uniquable a => UniqDSet a -> a -> UniqDSet a
delOneFromUniqDSet = delFromUDFM
delListFromUniqDSet :: Uniquable a => UniqDSet a -> [a] -> UniqDSet a
delListFromUniqDSet = delListFromUDFM
unionUniqDSets :: UniqDSet a -> UniqDSet a -> UniqDSet a
unionUniqDSets = plusUDFM
unionManyUniqDSets :: [UniqDSet a] -> UniqDSet a
unionManyUniqDSets [] = emptyUniqDSet
unionManyUniqDSets sets = foldr1 unionUniqDSets sets
minusUniqDSet :: UniqDSet a -> UniqDSet a -> UniqDSet a
minusUniqDSet = minusUDFM
uniqDSetMinusUniqSet :: UniqDSet a -> UniqSet a -> UniqDSet a
uniqDSetMinusUniqSet xs ys = udfmMinusUFM xs (getUniqSet ys)
intersectUniqDSets :: UniqDSet a -> UniqDSet a -> UniqDSet a
intersectUniqDSets = intersectUDFM
intersectsUniqDSets :: UniqDSet a -> UniqDSet a -> Bool
intersectsUniqDSets = intersectsUDFM
foldUniqDSet :: (a -> b -> b) -> b -> UniqDSet a -> b
foldUniqDSet = foldUDFM
elementOfUniqDSet :: Uniquable a => a -> UniqDSet a -> Bool
elementOfUniqDSet = elemUDFM
filterUniqDSet :: (a -> Bool) -> UniqDSet a -> UniqDSet a
filterUniqDSet = filterUDFM
sizeUniqDSet :: UniqDSet a -> Int
sizeUniqDSet = sizeUDFM
isEmptyUniqDSet :: UniqDSet a -> Bool
isEmptyUniqDSet = isNullUDFM
lookupUniqDSet :: Uniquable a => UniqDSet a -> a -> Maybe a
lookupUniqDSet = lookupUDFM
uniqDSetToList :: UniqDSet a -> [a]
uniqDSetToList = eltsUDFM
partitionUniqDSet :: (a -> Bool) -> UniqDSet a -> (UniqDSet a, UniqDSet a)
partitionUniqDSet = partitionUDFM
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