Safe Haskell	None
Language	Haskell2010

Composite.Record

Contents

Orphan instances

Synopsis

data Rec (a :: u -> Type) (b :: [u]) :: forall u. (u -> Type) -> [u] -> Type where
- RNil :: forall u (a :: u -> Type) (b :: [u]). Rec a ([] :: [u])
- (:&) :: forall u (a :: u -> Type) (b :: [u]) (r :: u) (rs :: [u]). !(a r) -> !(Rec a rs) -> Rec a (r ': rs)
type Record = Rec Identity
pattern (:*:) :: a -> Rec Identity rs -> Rec Identity ((s :-> a) ': rs)
pattern (:^:) :: Functor f => f a -> Rec f rs -> Rec f ((s :-> a) ': rs)
newtype (s :: Symbol) :-> a = Val {
- getVal :: a
}
_Val :: Iso (s :-> a) (s :-> b) a b
val :: forall (s :: Symbol) a. a -> Identity (s :-> a)
valName :: forall s a. KnownSymbol s => (s :-> a) -> Text
valWithName :: forall s a. KnownSymbol s => (s :-> a) -> (Text, a)
type RElem r rs = RElem r rs (RIndex r rs)
rlens :: (Functor g, RElem (s :-> a) rs, Functor g) => proxy (s :-> a) -> (a -> g a) -> Rec Identity rs -> g (Rec Identity rs)
rlens' :: (Functor f, Functor g, RElem (s :-> a) rs, Functor g) => proxy (s :-> a) -> (f a -> g (f a)) -> Rec f rs -> g (Rec f rs)
type family AllHave (cs :: [u -> Constraint]) (as :: [u]) :: Constraint where ...
type family HasInstances (a :: u) (cs :: [u -> Constraint]) :: Constraint where ...
type family ValuesAllHave (cs :: [u -> Constraint]) (as :: [u]) :: Constraint where ...
zipRecsWith :: (forall a. f a -> g a -> h a) -> Rec f as -> Rec g as -> Rec h as
reifyDicts :: forall u. forall (cs :: [u -> Constraint]) (f :: u -> *) (rs :: [u]) (proxy :: [u -> Constraint] -> *). (AllHave cs rs, RecApplicative rs) => proxy cs -> (forall proxy' (a :: u). HasInstances a cs => proxy' a -> f a) -> Rec f rs
reifyVal :: proxy (s :-> a) -> (s :-> a) -> s :-> a
recordToNonEmpty :: RecordToList rs => Rec (Const a) (r ': rs) -> NonEmpty a
class ReifyNames (rs :: [*]) where
- reifyNames :: Rec f rs -> Rec ((,) Text :. f) rs
class RecWithContext (ss :: [*]) (ts :: [*]) where
- rmapWithContext :: proxy ss -> (forall r. r ∈ ss => f r -> g r) -> Rec f ts -> Rec g ts
type family RDelete (r :: u) (rs :: [u]) where ...
type RDeletable r rs = (r ∈ rs, RDelete r rs ⊆ rs)
rdelete :: RDeletable r rs => proxy r -> Rec f rs -> Rec f (RDelete r rs)

Documentation

data Rec (a :: u -> Type) (b :: [u]) :: forall u. (u -> Type) -> [u] -> Type where #

A record is parameterized by a universe u, an interpretation f and a list of rows rs. The labels or indices of the record are given by inhabitants of the kind u; the type of values at any label r :: u is given by its interpretation f r :: *.

Constructors

RNil :: forall u (a :: u -> Type) (b :: [u]). Rec a ([] :: [u])
(:&) :: forall u (a :: u -> Type) (b :: [u]) (r :: u) (rs :: [u]). !(a r) -> !(Rec a rs) -> Rec a (r ': rs) infixr 7

Instances

RecSubset (Rec :: (k -> Type) -> [k] -> Type) ([] :: [k]) (ss :: [k]) ([] :: [Nat])
Instance details Defined in Data.Vinyl.Lens Associated Types type RecSubsetFCtx Rec f :: Constraint # Methods rsubsetC :: (Functor g, RecSubsetFCtx Rec f) => (Rec f [] -> g (Rec f [])) -> Rec f ss -> g (Rec f ss) # rcastC :: RecSubsetFCtx Rec f => Rec f ss -> Rec f [] # rreplaceC :: RecSubsetFCtx Rec f => Rec f [] -> Rec f ss -> Rec f ss #
(RElem r ss i, RSubset rs ss is) => RecSubset (Rec :: (k -> Type) -> [k] -> Type) (r ': rs :: [k]) (ss :: [k]) (i ': is)
Instance details Defined in Data.Vinyl.Lens Associated Types type RecSubsetFCtx Rec f :: Constraint # Methods rsubsetC :: (Functor g, RecSubsetFCtx Rec f) => (Rec f (r ': rs) -> g (Rec f (r ': rs))) -> Rec f ss -> g (Rec f ss) # rcastC :: RecSubsetFCtx Rec f => Rec f ss -> Rec f (r ': rs) # rreplaceC :: RecSubsetFCtx Rec f => Rec f (r ': rs) -> Rec f ss -> Rec f ss #
RecElem (Rec :: (a -> Type) -> [a] -> Type) (r :: a) (r' :: a) (r ': rs :: [a]) (r' ': rs :: [a]) Z
Instance details Defined in Data.Vinyl.Lens Associated Types type RecElemFCtx Rec f :: Constraint # Methods rlensC :: (Functor g, RecElemFCtx Rec f) => (f r -> g (f r')) -> Rec f (r ': rs) -> g (Rec f (r' ': rs)) # rgetC :: (RecElemFCtx Rec f, r ~ r') => Rec f (r ': rs) -> f r # rputC :: RecElemFCtx Rec f => f r' -> Rec f (r ': rs) -> Rec f (r' ': rs) #
(RIndex r (s ': rs) ~ S i, RecElem (Rec :: (a -> Type) -> [a] -> Type) r r' rs rs' i) => RecElem (Rec :: (a -> Type) -> [a] -> Type) (r :: a) (r' :: a) (s ': rs :: [a]) (s ': rs' :: [a]) (S i)
Instance details Defined in Data.Vinyl.Lens Associated Types type RecElemFCtx Rec f :: Constraint # Methods rlensC :: (Functor g, RecElemFCtx Rec f) => (f r -> g (f r')) -> Rec f (s ': rs) -> g (Rec f (s ': rs')) # rgetC :: (RecElemFCtx Rec f, r ~ r') => Rec f (s ': rs) -> f r # rputC :: RecElemFCtx Rec f => f r' -> Rec f (s ': rs) -> Rec f (s ': rs') #
MonadContext c ((->) (Record c) :: Type -> Type) Source #
Instance details Defined in Control.Monad.Composite.Context Methods askContext :: Record c -> Record c Source # localContext :: (Record c -> Record c) -> (Record c -> a) -> Record c -> a Source #
(NFData x, NFData (Record xs)) => NFData (Record (x ': xs)) Source #
Instance details Defined in Composite.Record Methods rnf :: Record (x ': xs) -> () #
NFData (Record ([] :: [Type])) Source #
Instance details Defined in Composite.Record Methods rnf :: Record [] -> () #
TestCoercion f => TestCoercion (Rec f :: [u] -> Type)
Instance details Defined in Data.Vinyl.Core Methods testCoercion :: Rec f a -> Rec f b -> Maybe (Coercion a b) #
TestEquality f => TestEquality (Rec f :: [u] -> Type)
Instance details Defined in Data.Vinyl.Core Methods testEquality :: Rec f a -> Rec f b -> Maybe (a :~: b) #
Eq (Rec f ([] :: [u]))
Instance details Defined in Data.Vinyl.Core Methods (==) :: Rec f [] -> Rec f [] -> Bool # (/=) :: Rec f [] -> Rec f [] -> Bool #
(Eq (f r), Eq (Rec f rs)) => Eq (Rec f (r ': rs))
Instance details Defined in Data.Vinyl.Core Methods (==) :: Rec f (r ': rs) -> Rec f (r ': rs) -> Bool # (/=) :: Rec f (r ': rs) -> Rec f (r ': rs) -> Bool #
Ord (Rec f ([] :: [u]))
Instance details Defined in Data.Vinyl.Core Methods compare :: Rec f [] -> Rec f [] -> Ordering # (<) :: Rec f [] -> Rec f [] -> Bool # (<=) :: Rec f [] -> Rec f [] -> Bool # (>) :: Rec f [] -> Rec f [] -> Bool # (>=) :: Rec f [] -> Rec f [] -> Bool # max :: Rec f [] -> Rec f [] -> Rec f [] # min :: Rec f [] -> Rec f [] -> Rec f [] #
(Ord (f r), Ord (Rec f rs)) => Ord (Rec f (r ': rs))
Instance details Defined in Data.Vinyl.Core Methods compare :: Rec f (r ': rs) -> Rec f (r ': rs) -> Ordering # (<) :: Rec f (r ': rs) -> Rec f (r ': rs) -> Bool # (<=) :: Rec f (r ': rs) -> Rec f (r ': rs) -> Bool # (>) :: Rec f (r ': rs) -> Rec f (r ': rs) -> Bool # (>=) :: Rec f (r ': rs) -> Rec f (r ': rs) -> Bool # max :: Rec f (r ': rs) -> Rec f (r ': rs) -> Rec f (r ': rs) # min :: Rec f (r ': rs) -> Rec f (r ': rs) -> Rec f (r ': rs) #
(RMap rs, ReifyConstraint Show f rs, RecordToList rs) => Show (Rec f rs)	Records may be shown insofar as their points may be shown. `reifyConstraint` is used to great effect here.
Instance details Defined in Data.Vinyl.Core Methods showsPrec :: Int -> Rec f rs -> ShowS # show :: Rec f rs -> String # showList :: [Rec f rs] -> ShowS #
Generic (Rec f ([] :: [u]))
Instance details Defined in Data.Vinyl.Core Associated Types type Rep (Rec f []) :: Type -> Type # Methods from :: Rec f [] -> Rep (Rec f []) x # to :: Rep (Rec f []) x -> Rec f [] #
Generic (Rec f rs) => Generic (Rec f (r ': rs))
Instance details Defined in Data.Vinyl.Core Associated Types type Rep (Rec f (r ': rs)) :: Type -> Type # Methods from :: Rec f (r ': rs) -> Rep (Rec f (r ': rs)) x # to :: Rep (Rec f (r ': rs)) x -> Rec f (r ': rs) #
Semigroup (Rec f ([] :: [u]))
Instance details Defined in Data.Vinyl.Core Methods (<>) :: Rec f [] -> Rec f [] -> Rec f [] # sconcat :: NonEmpty (Rec f []) -> Rec f [] # stimes :: Integral b => b -> Rec f [] -> Rec f [] #
(Semigroup (f r), Semigroup (Rec f rs)) => Semigroup (Rec f (r ': rs))
Instance details Defined in Data.Vinyl.Core Methods (<>) :: Rec f (r ': rs) -> Rec f (r ': rs) -> Rec f (r ': rs) # sconcat :: NonEmpty (Rec f (r ': rs)) -> Rec f (r ': rs) # stimes :: Integral b => b -> Rec f (r ': rs) -> Rec f (r ': rs) #
Monoid (Rec f ([] :: [u]))
Instance details Defined in Data.Vinyl.Core Methods mempty :: Rec f [] # mappend :: Rec f [] -> Rec f [] -> Rec f [] # mconcat :: [Rec f []] -> Rec f [] #
(Monoid (f r), Monoid (Rec f rs)) => Monoid (Rec f (r ': rs))
Instance details Defined in Data.Vinyl.Core Methods mempty :: Rec f (r ': rs) # mappend :: Rec f (r ': rs) -> Rec f (r ': rs) -> Rec f (r ': rs) # mconcat :: [Rec f (r ': rs)] -> Rec f (r ': rs) #
Storable (Rec f ([] :: [u]))
Instance details Defined in Data.Vinyl.Core Methods sizeOf :: Rec f [] -> Int # alignment :: Rec f [] -> Int # peekElemOff :: Ptr (Rec f []) -> Int -> IO (Rec f []) # pokeElemOff :: Ptr (Rec f []) -> Int -> Rec f [] -> IO () # peekByteOff :: Ptr b -> Int -> IO (Rec f []) # pokeByteOff :: Ptr b -> Int -> Rec f [] -> IO () # peek :: Ptr (Rec f []) -> IO (Rec f []) # poke :: Ptr (Rec f []) -> Rec f [] -> IO () #
(Storable (f r), Storable (Rec f rs)) => Storable (Rec f (r ': rs))
Instance details Defined in Data.Vinyl.Core Methods sizeOf :: Rec f (r ': rs) -> Int # alignment :: Rec f (r ': rs) -> Int # peekElemOff :: Ptr (Rec f (r ': rs)) -> Int -> IO (Rec f (r ': rs)) # pokeElemOff :: Ptr (Rec f (r ': rs)) -> Int -> Rec f (r ': rs) -> IO () # peekByteOff :: Ptr b -> Int -> IO (Rec f (r ': rs)) # pokeByteOff :: Ptr b -> Int -> Rec f (r ': rs) -> IO () # peek :: Ptr (Rec f (r ': rs)) -> IO (Rec f (r ': rs)) # poke :: Ptr (Rec f (r ': rs)) -> Rec f (r ': rs) -> IO () #
type RecSubsetFCtx (Rec :: (k -> Type) -> [k] -> Type) (f :: k -> Type)
Instance details Defined in Data.Vinyl.Lens type RecSubsetFCtx (Rec :: (k -> Type) -> [k] -> Type) (f :: k -> Type) = ()
type RecSubsetFCtx (Rec :: (k -> Type) -> [k] -> Type) (f :: k -> Type)
Instance details Defined in Data.Vinyl.Lens type RecSubsetFCtx (Rec :: (k -> Type) -> [k] -> Type) (f :: k -> Type) = ()
type RecElemFCtx (Rec :: (a -> Type) -> [a] -> Type) (f :: a -> Type)
Instance details Defined in Data.Vinyl.Lens type RecElemFCtx (Rec :: (a -> Type) -> [a] -> Type) (f :: a -> Type) = ()
type RecElemFCtx (Rec :: (a -> Type) -> [a] -> Type) (f :: a -> Type)
Instance details Defined in Data.Vinyl.Lens type RecElemFCtx (Rec :: (a -> Type) -> [a] -> Type) (f :: a -> Type) = ()
type Rep (Rec f (r ': rs))
Instance details Defined in Data.Vinyl.Core type Rep (Rec f (r ': rs)) = C1 (MetaCons ":&" (InfixI RightAssociative 7) False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness SourceStrict DecidedStrict) (Rec0 (f r)) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rep (Rec f rs)))
type Rep (Rec f ([] :: [u]))
Instance details Defined in Data.Vinyl.Core type Rep (Rec f ([] :: [u])) = C1 (MetaCons "RNil" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (U1 :: Type -> Type))

type Record = Rec Identity Source #

The type of regular plain records where each field has a value, equal to Rec Identity.

pattern (:*:) :: a -> Rec Identity rs -> Rec Identity ((s :-> a) ': rs) infixr 5 Source #

Bidirectional pattern matching the first field of a record using :-> values and the Identity functor.

This pattern is bidirectional meaning you can use it either as a pattern or a constructor, e.g.

  let rec = 123 :*: Just "foo" :*: RNil
      foo :*: bar :*: RNil = rec

Mnemonic: * for products.

pattern (:^:) :: Functor f => f a -> Rec f rs -> Rec f ((s :-> a) ': rs) infixr 5 Source #

Bidirectional pattern matching the first field of a record using :-> values and any functor.

This pattern is bidirectional meaning you can use it either as a pattern or a constructor, e.g.

  let rec = Just 123 :^: Just "foo" :^: RNil
      Just foo :^: Just bar :^: RNil = rec

Mnemonic: ^ for products (record) of products (functor).

newtype (s :: Symbol) :-> a Source #

Some value of type a tagged with a symbol indicating its field name or label. Used as the usual type of elements in a Rec or Record.

Recommended pronunciation: record val.

Constructors

Val
Fields getVal :: a

Instances

Monad ((:->) s) Source #
Instance details Defined in Composite.Record Methods (>>=) :: (s :-> a) -> (a -> s :-> b) -> s :-> b # (>>) :: (s :-> a) -> (s :-> b) -> s :-> b # return :: a -> s :-> a # fail :: String -> s :-> a #
Functor ((:->) s) Source #
Instance details Defined in Composite.Record Methods fmap :: (a -> b) -> (s :-> a) -> s :-> b # (<$) :: a -> (s :-> b) -> s :-> a #
Applicative ((:->) s) Source #
Instance details Defined in Composite.Record Methods pure :: a -> s :-> a # (<>) :: (s :-> (a -> b)) -> (s :-> a) -> s :-> b # liftA2 :: (a -> b -> c) -> (s :-> a) -> (s :-> b) -> s :-> c # (>) :: (s :-> a) -> (s :-> b) -> s :-> b # (<*) :: (s :-> a) -> (s :-> b) -> s :-> a #
Foldable ((:->) s) Source #
Instance details Defined in Composite.Record Methods fold :: Monoid m => (s :-> m) -> m # foldMap :: Monoid m => (a -> m) -> (s :-> a) -> m # foldr :: (a -> b -> b) -> b -> (s :-> a) -> b # foldr' :: (a -> b -> b) -> b -> (s :-> a) -> b # foldl :: (b -> a -> b) -> b -> (s :-> a) -> b # foldl' :: (b -> a -> b) -> b -> (s :-> a) -> b # foldr1 :: (a -> a -> a) -> (s :-> a) -> a # foldl1 :: (a -> a -> a) -> (s :-> a) -> a # toList :: (s :-> a) -> [a] # null :: (s :-> a) -> Bool # length :: (s :-> a) -> Int # elem :: Eq a => a -> (s :-> a) -> Bool # maximum :: Ord a => (s :-> a) -> a # minimum :: Ord a => (s :-> a) -> a # sum :: Num a => (s :-> a) -> a # product :: Num a => (s :-> a) -> a #
Traversable ((:->) s) Source #
Instance details Defined in Composite.Record Methods traverse :: Applicative f => (a -> f b) -> (s :-> a) -> f (s :-> b) # sequenceA :: Applicative f => (s :-> f a) -> f (s :-> a) # mapM :: Monad m => (a -> m b) -> (s :-> a) -> m (s :-> b) # sequence :: Monad m => (s :-> m a) -> m (s :-> a) #
KnownSymbol s => IsoHKD Identity (s :-> a :: Type) Source #
Instance details Defined in Composite.Record Associated Types type HKD Identity (s :-> a) :: Type # Methods unHKD :: HKD Identity (s :-> a) -> Identity (s :-> a) # toHKD :: Identity (s :-> a) -> HKD Identity (s :-> a) #
Bounded a => Bounded (s :-> a) Source #
Instance details Defined in Composite.Record Methods minBound :: s :-> a # maxBound :: s :-> a #
Enum a => Enum (s :-> a) Source #
Instance details Defined in Composite.Record Methods succ :: (s :-> a) -> s :-> a # pred :: (s :-> a) -> s :-> a # toEnum :: Int -> s :-> a # fromEnum :: (s :-> a) -> Int # enumFrom :: (s :-> a) -> [s :-> a] # enumFromThen :: (s :-> a) -> (s :-> a) -> [s :-> a] # enumFromTo :: (s :-> a) -> (s :-> a) -> [s :-> a] # enumFromThenTo :: (s :-> a) -> (s :-> a) -> (s :-> a) -> [s :-> a] #
Eq a => Eq (s :-> a) Source #
Instance details Defined in Composite.Record Methods (==) :: (s :-> a) -> (s :-> a) -> Bool # (/=) :: (s :-> a) -> (s :-> a) -> Bool #
Floating a => Floating (s :-> a) Source #
Instance details Defined in Composite.Record Methods pi :: s :-> a # exp :: (s :-> a) -> s :-> a # log :: (s :-> a) -> s :-> a # sqrt :: (s :-> a) -> s :-> a # (**) :: (s :-> a) -> (s :-> a) -> s :-> a # logBase :: (s :-> a) -> (s :-> a) -> s :-> a # sin :: (s :-> a) -> s :-> a # cos :: (s :-> a) -> s :-> a # tan :: (s :-> a) -> s :-> a # asin :: (s :-> a) -> s :-> a # acos :: (s :-> a) -> s :-> a # atan :: (s :-> a) -> s :-> a # sinh :: (s :-> a) -> s :-> a # cosh :: (s :-> a) -> s :-> a # tanh :: (s :-> a) -> s :-> a # asinh :: (s :-> a) -> s :-> a # acosh :: (s :-> a) -> s :-> a # atanh :: (s :-> a) -> s :-> a # log1p :: (s :-> a) -> s :-> a # expm1 :: (s :-> a) -> s :-> a # log1pexp :: (s :-> a) -> s :-> a # log1mexp :: (s :-> a) -> s :-> a #
Fractional a => Fractional (s :-> a) Source #
Instance details Defined in Composite.Record Methods (/) :: (s :-> a) -> (s :-> a) -> s :-> a # recip :: (s :-> a) -> s :-> a # fromRational :: Rational -> s :-> a #
Integral a => Integral (s :-> a) Source #
Instance details Defined in Composite.Record Methods quot :: (s :-> a) -> (s :-> a) -> s :-> a # rem :: (s :-> a) -> (s :-> a) -> s :-> a # div :: (s :-> a) -> (s :-> a) -> s :-> a # mod :: (s :-> a) -> (s :-> a) -> s :-> a # quotRem :: (s :-> a) -> (s :-> a) -> (s :-> a, s :-> a) # divMod :: (s :-> a) -> (s :-> a) -> (s :-> a, s :-> a) # toInteger :: (s :-> a) -> Integer #
Num a => Num (s :-> a) Source #
Instance details Defined in Composite.Record Methods (+) :: (s :-> a) -> (s :-> a) -> s :-> a # (-) :: (s :-> a) -> (s :-> a) -> s :-> a # (*) :: (s :-> a) -> (s :-> a) -> s :-> a # negate :: (s :-> a) -> s :-> a # abs :: (s :-> a) -> s :-> a # signum :: (s :-> a) -> s :-> a # fromInteger :: Integer -> s :-> a #
Ord a => Ord (s :-> a) Source #
Instance details Defined in Composite.Record Methods compare :: (s :-> a) -> (s :-> a) -> Ordering # (<) :: (s :-> a) -> (s :-> a) -> Bool # (<=) :: (s :-> a) -> (s :-> a) -> Bool # (>) :: (s :-> a) -> (s :-> a) -> Bool # (>=) :: (s :-> a) -> (s :-> a) -> Bool # max :: (s :-> a) -> (s :-> a) -> s :-> a # min :: (s :-> a) -> (s :-> a) -> s :-> a #
Real a => Real (s :-> a) Source #
Instance details Defined in Composite.Record Methods toRational :: (s :-> a) -> Rational #
RealFloat a => RealFloat (s :-> a) Source #
Instance details Defined in Composite.Record Methods floatRadix :: (s :-> a) -> Integer # floatDigits :: (s :-> a) -> Int # floatRange :: (s :-> a) -> (Int, Int) # decodeFloat :: (s :-> a) -> (Integer, Int) # encodeFloat :: Integer -> Int -> s :-> a # exponent :: (s :-> a) -> Int # significand :: (s :-> a) -> s :-> a # scaleFloat :: Int -> (s :-> a) -> s :-> a # isNaN :: (s :-> a) -> Bool # isInfinite :: (s :-> a) -> Bool # isDenormalized :: (s :-> a) -> Bool # isNegativeZero :: (s :-> a) -> Bool # isIEEE :: (s :-> a) -> Bool # atan2 :: (s :-> a) -> (s :-> a) -> s :-> a #
RealFrac a => RealFrac (s :-> a) Source #
Instance details Defined in Composite.Record Methods properFraction :: Integral b => (s :-> a) -> (b, s :-> a) # truncate :: Integral b => (s :-> a) -> b # round :: Integral b => (s :-> a) -> b # ceiling :: Integral b => (s :-> a) -> b # floor :: Integral b => (s :-> a) -> b #
(KnownSymbol s, Show a) => Show (s :-> a) Source #
Instance details Defined in Composite.Record Methods showsPrec :: Int -> (s :-> a) -> ShowS # show :: (s :-> a) -> String # showList :: [s :-> a] -> ShowS #
IsString a => IsString (s :-> a) Source #
Instance details Defined in Composite.Record Methods fromString :: String -> s :-> a #
Semigroup a => Semigroup (s :-> a) Source #
Instance details Defined in Composite.Record Methods (<>) :: (s :-> a) -> (s :-> a) -> s :-> a # sconcat :: NonEmpty (s :-> a) -> s :-> a # stimes :: Integral b => b -> (s :-> a) -> s :-> a #
Monoid a => Monoid (s :-> a) Source #
Instance details Defined in Composite.Record Methods mempty :: s :-> a # mappend :: (s :-> a) -> (s :-> a) -> s :-> a # mconcat :: [s :-> a] -> s :-> a #
Storable a => Storable (s :-> a) Source #
Instance details Defined in Composite.Record Methods sizeOf :: (s :-> a) -> Int # alignment :: (s :-> a) -> Int # peekElemOff :: Ptr (s :-> a) -> Int -> IO (s :-> a) # pokeElemOff :: Ptr (s :-> a) -> Int -> (s :-> a) -> IO () # peekByteOff :: Ptr b -> Int -> IO (s :-> a) # pokeByteOff :: Ptr b -> Int -> (s :-> a) -> IO () # peek :: Ptr (s :-> a) -> IO (s :-> a) # poke :: Ptr (s :-> a) -> (s :-> a) -> IO () #
NFData a => NFData (s :-> a) Source #
Instance details Defined in Composite.Record Methods rnf :: (s :-> a) -> () #
Wrapped (s :-> a) Source #
Instance details Defined in Composite.Record Associated Types type Unwrapped (s :-> a) :: Type # Methods _Wrapped' :: Iso' (s :-> a) (Unwrapped (s :-> a)) #
(s1 :-> a1) ~ t => Rewrapped (s2 :-> a2) t Source #
Instance details Defined in Composite.Record
(KnownSymbol s, ReifyNames rs) => ReifyNames ((s :-> a) ': rs) Source #
Instance details Defined in Composite.Record Methods reifyNames :: Rec f ((s :-> a) ': rs) -> Rec ((,) Text :. f) ((s :-> a) ': rs) Source #
type HKD Identity (s :-> a :: Type) Source #
Instance details Defined in Composite.Record type HKD Identity (s :-> a :: Type) = a
type Unwrapped (s :-> a) Source #
Instance details Defined in Composite.Record type Unwrapped (s :-> a) = a

_Val :: Iso (s :-> a) (s :-> b) a b Source #

val :: forall (s :: Symbol) a. a -> Identity (s :-> a) Source #

Convenience function to make an Identity (s :-> a) with a particular symbol, used for named field construction.

For example:

  type FFoo = "foo" :-> Int
  type FBar = "bar" :-> String
  type FBaz = "baz" :-> Double
  type MyRecord = [FFoo, FBar, FBaz]

  myRecord1 :: Record MyRecord
  myRecord1
    =  val "foo" 123
    :& val "bar" "foobar"
    :& val "baz" 3.21
    :& RNil

  myRecord2 :: Record MyRecord
  myRecord2 = rcast
    $  val "baz" 3.21
    :& val "foo" 123
    :& val "bar" "foobar"
    :& RNil

In this example, both myRecord1 and myRecord2 have the same value, since rcast can reorder records.

valName :: forall s a. KnownSymbol s => (s :-> a) -> Text Source #

Reflect the type level name of a named value s :-> a to a Text. For example, given "foo" :-> Int, yields "foo" :: Text

valWithName :: forall s a. KnownSymbol s => (s :-> a) -> (Text, a) Source #

Extract the value and reflect the name of a named value.

type RElem r rs = RElem r rs (RIndex r rs) Source #

Constraint expressing that r is in rs and providing the index of r in rs. Equal to RElem rs (RIndex r rs).

rlens :: (Functor g, RElem (s :-> a) rs, Functor g) => proxy (s :-> a) -> (a -> g a) -> Rec Identity rs -> g (Rec Identity rs) Source #

Lens to a particular field of a record using the Identity functor.

For example, given:

  type FFoo = "foo" :-> Int
  type FBar = "bar" :-> String
  fBar_ :: Proxy FBar
  fBar_ = Proxy

  rec :: Rec Identity '[FFoo, FBar]
  rec = 123 :*: "hello!" :*: Nil

Then:

  view (rlens fBar_)               rec == "hello!"
  set  (rlens fBar_) "goodbye!"    rec == 123 :*: "goodbye!" :*: Nil
  over (rlens fBar_) (map toUpper) rec == 123 :*: "HELLO!"   :*: Nil

rlens' :: (Functor f, Functor g, RElem (s :-> a) rs, Functor g) => proxy (s :-> a) -> (f a -> g (f a)) -> Rec f rs -> g (Rec f rs) Source #

Lens to a particular field of a record using any functor.

For example, given:

  type FFoo = "foo" :-> Int
  type FBar = "bar" :-> String
  fBar_ :: Proxy FBar
  fBar_ = Proxy

  rec :: Rec Maybe '[FFoo, FBar]
  rec = Just 123 :^: Just "hello!" :^: Nil

Then:

  view (rlens' fBar_)                      rec == Just "hello!"
  set  (rlens' fBar_) Nothing              rec == Just 123 :^: Nothing       :^: Nil
  over (rlens' fBar_) (fmap (map toUpper)) rec == Just 123 :^: Just "HELLO!" :^: Nil

type family AllHave (cs :: [u -> Constraint]) (as :: [u]) :: Constraint where ... Source #

Type function which produces the cross product of constraints cs and types as.

For example, AllHave '[Eq, Ord] '[Int, Text] is equivalent to (Eq Int, Ord Int, Eq Text, Ord Text)

Equations

AllHave cs '[] = ()
AllHave cs (a ': as) = (HasInstances a cs, AllHave cs as)

type family HasInstances (a :: u) (cs :: [u -> Constraint]) :: Constraint where ... Source #

Type function which produces a constraint on a for each constraint in cs.

For example, HasInstances Int '[Eq, Ord] is equivalent to (Eq Int, Ord Int).

Equations

HasInstances a '[] = ()
HasInstances a (c ': cs) = (c a, HasInstances a cs)

type family ValuesAllHave (cs :: [u -> Constraint]) (as :: [u]) :: Constraint where ... Source #

Type function which produces the cross product of constraints cs and the values carried in a record rs.

For example, ValuesAllHave '[Eq, Ord] '["foo" :-> Int, "bar" :-> Text] is equivalent to (Eq Int, Ord Int, Eq Text, Ord Text)

Equations

ValuesAllHave cs '[] = ()
ValuesAllHave cs ((s :-> a) ': as) = (HasInstances a cs, ValuesAllHave cs as)

zipRecsWith :: (forall a. f a -> g a -> h a) -> Rec f as -> Rec g as -> Rec h as Source #

zipWith for Rec's.

reifyDicts :: forall u. forall (cs :: [u -> Constraint]) (f :: u -> *) (rs :: [u]) (proxy :: [u -> Constraint] -> *). (AllHave cs rs, RecApplicative rs) => proxy cs -> (forall proxy' (a :: u). HasInstances a cs => proxy' a -> f a) -> Rec f rs Source #

Given a list of constraints cs, apply some function for each r in the target record type rs with proof that those constraints hold for r, generating a record with the result of each application.

reifyVal :: proxy (s :-> a) -> (s :-> a) -> s :-> a Source #

Reify the type of a val.

recordToNonEmpty :: RecordToList rs => Rec (Const a) (r ': rs) -> NonEmpty a Source #

Convert a provably nonempty Rec (Const a) rs to a NonEmpty a.

class ReifyNames (rs :: [*]) where Source #

Class which reifies the symbols of a record composed of :-> fields as Text.

Methods

reifyNames :: Rec f rs -> Rec ((,) Text :. f) rs Source #

Given a Rec f rs where each r in rs is of the form s :-> a, make a record which adds the Text for each s.

Instances

ReifyNames ([] :: [Type]) Source #
Instance details Defined in Composite.Record Methods reifyNames :: Rec f [] -> Rec ((,) Text :. f) [] Source #
(KnownSymbol s, ReifyNames rs) => ReifyNames ((s :-> a) ': rs) Source #
Instance details Defined in Composite.Record Methods reifyNames :: Rec f ((s :-> a) ': rs) -> Rec ((,) Text :. f) ((s :-> a) ': rs) Source #

class RecWithContext (ss :: [*]) (ts :: [*]) where Source #

Class with rmap but which gives the natural transformation evidence that the value its working over is contained within the overall record ss.

Methods

rmapWithContext :: proxy ss -> (forall r. r ∈ ss => f r -> g r) -> Rec f ts -> Rec g ts Source #

Apply a natural transformation from f to g to each field of the given record, except that the natural transformation can be mildly unnatural by having evidence that r is in ss.

Instances

RecWithContext ss ([] :: [Type]) Source #
Instance details Defined in Composite.Record Methods rmapWithContext :: proxy ss -> (forall r. r ∈ ss => f r -> g r) -> Rec f [] -> Rec g [] Source #
(r ∈ ss, RecWithContext ss ts) => RecWithContext ss (r ': ts) Source #
Instance details Defined in Composite.Record Methods rmapWithContext :: proxy ss -> (forall r0. r0 ∈ ss => f r0 -> g r0) -> Rec f (r ': ts) -> Rec g (r ': ts) Source #

type family RDelete (r :: u) (rs :: [u]) where ... Source #

Type function which removes the first element r from a list rs, and doesn't expand if r is not present in rs.

Equations

RDelete r (r ': rs) = rs
RDelete r (s ': rs) = s ': RDelete r rs

type RDeletable r rs = (r ∈ rs, RDelete r rs ⊆ rs) Source #

Constraint which reflects that an element r can be removed from rs using rdelete.

rdelete :: RDeletable r rs => proxy r -> Rec f rs -> Rec f (RDelete r rs) Source #

Remove an element r from a Rec f rs. Note this is just a type constrained rcast.

Orphan instances

(NFData x, NFData (Record xs)) => NFData (Record (x ': xs)) Source #
Instance details Methods rnf :: Record (x ': xs) -> () #
NFData (Record ([] :: [Type])) Source #
Instance details Methods rnf :: Record [] -> () #