ghc-8.0.1: The GHC API

Safe HaskellNone
LanguageHaskell2010

UniqDFM

Contents

Synopsis

Unique-keyed deterministic mappings

data UniqDFM ele Source #

Type of unique deterministic finite maps

Instances

Functor UniqDFM # 

Methods

fmap :: (a -> b) -> UniqDFM a -> UniqDFM b Source #

(<$) :: a -> UniqDFM b -> UniqDFM a Source #

Data ele => Data (UniqDFM ele) # 

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> UniqDFM ele -> c (UniqDFM ele) Source #

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (UniqDFM ele) Source #

toConstr :: UniqDFM ele -> Constr Source #

dataTypeOf :: UniqDFM ele -> DataType Source #

dataCast1 :: Typeable (* -> *) t => (forall d. Data d => c (t d)) -> Maybe (c (UniqDFM ele)) Source #

dataCast2 :: Typeable (* -> * -> *) t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (UniqDFM ele)) Source #

gmapT :: (forall b. Data b => b -> b) -> UniqDFM ele -> UniqDFM ele Source #

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> UniqDFM ele -> r Source #

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> UniqDFM ele -> r Source #

gmapQ :: (forall d. Data d => d -> u) -> UniqDFM ele -> [u] Source #

gmapQi :: Int -> (forall d. Data d => d -> u) -> UniqDFM ele -> u Source #

gmapM :: Monad m => (forall d. Data d => d -> m d) -> UniqDFM ele -> m (UniqDFM ele) Source #

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> UniqDFM ele -> m (UniqDFM ele) Source #

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> UniqDFM ele -> m (UniqDFM ele) Source #

Outputable a => Outputable (UniqDFM a) # 

Manipulating those mappings

unitUDFM :: Uniquable key => key -> elt -> UniqDFM elt Source #

addToUDFM :: Uniquable key => UniqDFM elt -> key -> elt -> UniqDFM elt Source #

delFromUDFM :: Uniquable key => UniqDFM elt -> key -> UniqDFM elt Source #

delListFromUDFM :: Uniquable key => UniqDFM elt -> [key] -> UniqDFM elt Source #

Delete a list of elements from a UniqDFM

adjustUDFM :: Uniquable key => (elt -> elt) -> UniqDFM elt -> key -> UniqDFM elt Source #

Apply a function to a particular element

alterUDFM :: Uniquable key => (Maybe elt -> Maybe elt) -> UniqDFM elt -> key -> UniqDFM elt Source #

The expression (alterUDFM f k map) alters value x at k, or absence thereof. alterUDFM can be used to insert, delete, or update a value in UniqDFM. Use addToUDFM, delFromUDFM or adjustUDFM when possible, they are more efficient.

mapUDFM :: (elt1 -> elt2) -> UniqDFM elt1 -> UniqDFM elt2 Source #

Map a function over every value in a UniqDFM

plusUDFM :: UniqDFM elt -> UniqDFM elt -> UniqDFM elt Source #

lookupUDFM :: Uniquable key => UniqDFM elt -> key -> Maybe elt Source #

elemUDFM :: Uniquable key => key -> UniqDFM elt -> Bool Source #

foldUDFM :: (elt -> a -> a) -> a -> UniqDFM elt -> a Source #

Performs a deterministic fold over the UniqDFM. It's O(n log n) while the corresponding function on UniqFM is O(n).

eltsUDFM :: UniqDFM elt -> [elt] Source #

filterUDFM :: (elt -> Bool) -> UniqDFM elt -> UniqDFM elt Source #

minusUDFM :: UniqDFM elt1 -> UniqDFM elt2 -> UniqDFM elt1 Source #

partitionUDFM :: (elt -> Bool) -> UniqDFM elt -> (UniqDFM elt, UniqDFM elt) Source #

Partition UniqDFM into two UniqDFMs according to the predicate

udfmToList :: UniqDFM elt -> [(Unique, elt)] Source #

Converts UniqDFM to a list, with elements in deterministic order. It's O(n log n) while the corresponding function on UniqFM is O(n).

udfmToUfm :: UniqDFM elt -> UniqFM elt Source #

This allows for lossy conversion from UniqDFM to UniqFM