Safe Haskell	None
Language	Haskell2010

FieldLabel

Synopsis

type FieldLabelString = FastString
type FieldLabelEnv = DFastStringEnv FieldLabel
data FieldLbl a = FieldLabel {
- flLabel :: FieldLabelString
- flIsOverloaded :: Bool
- flSelector :: a
}
type FieldLabel = FieldLbl Name
mkFieldLabelOccs :: FieldLabelString -> OccName -> Bool -> FieldLbl OccName

Documentation

type FieldLabelString = FastString Source #

Field labels are just represented as strings; they are not necessarily unique (even within a module)

type FieldLabelEnv = DFastStringEnv FieldLabel Source #

A map from labels to all the auxiliary information

data FieldLbl a Source #

Fields in an algebraic record type

Constructors

FieldLabel
Fields flLabel :: FieldLabelString User-visible label of the field flIsOverloaded :: Bool Was DuplicateRecordFields on in the defining module for this datatype? flSelector :: a Record selector function

Instances

Functor FieldLbl Source #
Instance details Defined in FieldLabel Methods fmap :: (a -> b) -> FieldLbl a -> FieldLbl b # (<$) :: a -> FieldLbl b -> FieldLbl a #
Foldable FieldLbl Source #
Instance details Defined in FieldLabel Methods fold :: Monoid m => FieldLbl m -> m # foldMap :: Monoid m => (a -> m) -> FieldLbl a -> m # foldr :: (a -> b -> b) -> b -> FieldLbl a -> b # foldr' :: (a -> b -> b) -> b -> FieldLbl a -> b # foldl :: (b -> a -> b) -> b -> FieldLbl a -> b # foldl' :: (b -> a -> b) -> b -> FieldLbl a -> b # foldr1 :: (a -> a -> a) -> FieldLbl a -> a # foldl1 :: (a -> a -> a) -> FieldLbl a -> a # toList :: FieldLbl a -> [a] # null :: FieldLbl a -> Bool # length :: FieldLbl a -> Int # elem :: Eq a => a -> FieldLbl a -> Bool # maximum :: Ord a => FieldLbl a -> a # minimum :: Ord a => FieldLbl a -> a # sum :: Num a => FieldLbl a -> a # product :: Num a => FieldLbl a -> a #
Traversable FieldLbl Source #
Instance details Defined in FieldLabel Methods traverse :: Applicative f => (a -> f b) -> FieldLbl a -> f (FieldLbl b) # sequenceA :: Applicative f => FieldLbl (f a) -> f (FieldLbl a) # mapM :: Monad m => (a -> m b) -> FieldLbl a -> m (FieldLbl b) # sequence :: Monad m => FieldLbl (m a) -> m (FieldLbl a) #
Eq a => Eq (FieldLbl a) Source #
Instance details Defined in FieldLabel Methods (==) :: FieldLbl a -> FieldLbl a -> Bool # (/=) :: FieldLbl a -> FieldLbl a -> Bool #
Data a => Data (FieldLbl a) Source #
Instance details Defined in FieldLabel Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> FieldLbl a -> c (FieldLbl a) # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (FieldLbl a) # toConstr :: FieldLbl a -> Constr # dataTypeOf :: FieldLbl a -> DataType # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c (FieldLbl a)) # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (FieldLbl a)) # gmapT :: (forall b. Data b => b -> b) -> FieldLbl a -> FieldLbl a # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> FieldLbl a -> r # gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> FieldLbl a -> r # gmapQ :: (forall d. Data d => d -> u) -> FieldLbl a -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> FieldLbl a -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> FieldLbl a -> m (FieldLbl a) # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> FieldLbl a -> m (FieldLbl a) # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> FieldLbl a -> m (FieldLbl a) #
Outputable a => Outputable (FieldLbl a) Source #
Instance details Defined in FieldLabel Methods ppr :: FieldLbl a -> SDoc Source # pprPrec :: Rational -> FieldLbl a -> SDoc Source #
Binary a => Binary (FieldLbl a) Source #
Instance details Defined in FieldLabel Methods put_ :: BinHandle -> FieldLbl a -> IO () Source # put :: BinHandle -> FieldLbl a -> IO (Bin (FieldLbl a)) Source # get :: BinHandle -> IO (FieldLbl a) Source #

type FieldLabel = FieldLbl Name Source #

mkFieldLabelOccs :: FieldLabelString -> OccName -> Bool -> FieldLbl OccName Source #

Record selector OccNames are built from the underlying field name and the name of the first data constructor of the type, to support duplicate record field names. See Note [Why selector names include data constructors].