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liftA1 :: forall f a b. Applicative f => (a -> b) -> f a -> f b
liftA1 provides a default implementation of (<$>) for any
Applicative functor, without using (<$>) as provided
by the Functor-Applicative superclass
relationship.
liftA1 can therefore be used to write Functor instances
as follows:
instance functorF :: Functor F where
map = liftA1
liftM1 :: forall m a b. Monad m => (a -> b) -> m a -> m b
liftM1 provides a default implementation of (<$>) for any
Monad, without using (<$>) as provided by the
Functor-Monad superclass relationship.
liftM1 can therefore be used to write Functor instances
as follows:
instance functorF :: Functor F where
map = liftM1
map :: forall f a b. Functor f => (a -> b) -> f a -> f b
mapDefault :: forall i f a b. FunctorWithIndex i f => (a -> b) -> f a -> f b
A default implementation of Functor's map in terms of mapWithIndex
squigglyMap :: forall f a b. Functor f => (a -> b) -> f a -> f b
map :: forall p q a b. Dissect p q => (a -> b) -> p a -> p b
A tail-recursive map operation, implemented in terms of Dissect.
map :: forall a c b. HasMap a => (b -> c) -> a b -> a c
map :: forall f a b. Functor f => (a -> b) -> f a -> f b
defaultFilter :: forall a h f. BooleanEq h => Applicative f => Foldable f => Monoid (f a) => (a -> h) -> f a -> f a
filter :: forall f h a. Filterable f => BooleanEq h => (a -> h) -> f a -> f a
cmap :: forall f a b. Contravariant f => (b -> a) -> f a -> f b
censor :: forall w m a. MonadWriter w m => (w -> w) -> m a -> m a
Modify the final accumulator value by applying a function.
local :: forall e w a. ComonadEnv e w => (e -> e) -> w a -> w a
local :: forall r m a. MonadReader r m => (r -> r) -> m a -> m a
seeks :: forall s a w. ComonadStore s w => (s -> s) -> w a -> w a
Reposition the focus at the specified position, which depends on the current position.
censorAccum :: forall acc html a. Accum acc html => (acc -> acc) -> html a -> html a
setCtx :: forall ctx html a. Ctx ctx html => (ctx -> ctx) -> html a -> html a
mapErr :: forall e m a. MonadError e m => (e -> e) -> m a -> m a
applyFirst :: forall a b f. Apply f => f a -> f b -> f a
Combine two effectful actions, keeping only the result of the first.
all :: forall a b f. Foldable f => HeytingAlgebra b => (a -> b) -> f a -> b
all f is the same as and <<< map f; map a function over the structure,
and then get the conjunction of the results.
any :: forall a b f. Foldable f => HeytingAlgebra b => (a -> b) -> f a -> b
any f is the same as or <<< map f; map a function over the structure,
and then get the disjunction of the results.
foldMap :: forall f a m. Foldable f => Monoid m => (a -> m) -> f a -> m
foldMap1 :: forall t a m. Foldable1 t => Semigroup m => (a -> m) -> t a -> m
foldMap1DefaultL :: forall t m a. Foldable1 t => Functor t => Semigroup m => (a -> m) -> t a -> m
A default implementation of foldMap1 using foldl1.
Note: when defining a Foldable1 instance, this function is unsafe to use
in combination with foldl1Default.
foldMap1DefaultR :: forall t m a. Foldable1 t => Functor t => Semigroup m => (a -> m) -> t a -> m
A default implementation of foldMap1 using foldr1.
Note: when defining a Foldable1 instance, this function is unsafe to use
in combination with foldr1Default.
foldMapDefault :: forall i f a m. FoldableWithIndex i f => Monoid m => (a -> m) -> f a -> m
A default implementation of foldMap using foldMapWithIndex
foldMapDefaultL :: forall f a m. Foldable f => Monoid m => (a -> m) -> f a -> m
A default implementation of foldMap using foldl.
Note: when defining a Foldable instance, this function is unsafe to use
in combination with foldlDefault.
foldMapDefaultR :: forall f a m. Foldable f => Monoid m => (a -> m) -> f a -> m
A default implementation of foldMap using foldr.
Note: when defining a Foldable instance, this function is unsafe to use
in combination with foldrDefault.
tracks :: forall w a t. ComonadTraced t w => (a -> t) -> w a -> a
Extracts a value at a relative position which depends on the current value.
sampleOnRight_ :: forall event a b. IsEvent event => event a -> event b -> event a
Create an Event which samples the latest values from the first event
at the times when the second event fires, ignoring the values produced by
the second event.
sampleOn_ :: forall b a event. IsEvent event => event a -> event b -> event a
Create an Event which samples the latest values from the first event
at the times when the second event fires, ignoring the values produced by
the second event.
applyFirst :: forall v1 v0 f c. HasApply c f => HasConst c => HasMap c f => ObjectOf c v0 => ObjectOf c v1 => ObjectOf c (c v1 v0) => f v0 -> f v1 -> f v0
areads :: forall m r s a. MonadEffect m => Refer s r => (s -> a) -> r -> m a
liftF :: forall b a f. Applicative f => (a -> b) -> a -> f b
asks :: forall e1 e2 w a. ComonadAsk e1 w => (e1 -> e2) -> w a -> e2
Get a value which depends on the environment.
mulNat :: forall proxy a b c. ProductNat a b c => proxy a -> proxy b -> proxy c
plus :: forall proxy a b c. SumInt a b c => proxy a -> proxy b -> proxy c
plusNat :: forall proxy a b c. SumNat a b c => proxy a -> proxy b -> proxy c
powNat :: forall proxy a b c. ExponentiationNat a b c => proxy a -> proxy b -> proxy c
> powNat d2 d3
8 -- : NProxy D8
a raised to the power of b a^b = c
prod :: forall proxy a b c. ProductInt a b c => proxy a -> proxy b -> proxy c
concat :: forall xs ys zs lproxy. Concat xs ys zs => lproxy xs -> lproxy ys -> lproxy zs
drop :: forall n xs ys lproxy iproxy. Drop n xs ys => iproxy n -> lproxy xs -> lproxy ys
take :: forall n xs ys lproxy iproxy. Take n xs ys => iproxy n -> lproxy xs -> lproxy ys
zip :: forall x y z lproxy. Zip x y z => lproxy x -> lproxy y -> lproxy z
map :: forall f xs ys fproxy kproxy lproxy. Map f xs ys => fproxy f -> kproxy xs -> lproxy ys
getOrAlt :: forall v s r' r l h g f. Alternative h => Cons s v r' r => RowToList r l => RGetOrAlt f g s l r => g s -> f r -> h v
alt :: forall f a. Alt f => f a -> f a -> f a
choose :: forall m a. MonadGen m => m a -> m a -> m a
Creates a generator that outputs a value chosen from one of two existing existing generators with even probability.
amodify :: forall m r s. MonadEffect m => Refer s r => (s -> s) -> r -> m s
max1 :: forall f a. Ord1 f => f a -> f a -> f a
min1 :: forall f a. Ord1 f => f a -> f a -> f a
onIntegrityError :: forall m a. MonadError PGError m => m a -> m a -> m a
alt :: forall f a. Alternative f => f a -> f a -> f a
dappend :: forall cnt a. Diff cnt => cnt a -> cnt a -> cnt a
interleave :: forall m a. MonadLogic m => m a -> m a -> m a
iterate :: forall a u. Unfoldable1 u => (a -> a) -> a -> u a
Create an infinite Unfoldable1 by repeated application of a function to a seed value.
Analogous to iterateN, but with no iteration limit.
This should only be used to produce either lazy types (like lazy Lists) or
types with truncating Unfoldable1 instances (like Maybe).
applySecond :: forall a b f. Apply f => f a -> f b -> f b
Combine two effectful actions, keeping only the result of the second.
peeks :: forall s a w. ComonadStore s w => (s -> s) -> w a -> a
Extract a value from a position which depends on the current position.
sampleOnLeft_ :: forall event a b. IsEvent event => event a -> event b -> event b
applySecond :: forall v1 v0 f c. HasApply c f => HasConst c => HasIdentity c => HasMap c f => ObjectOf c v0 => ObjectOf c v1 => ObjectOf c (c v1 v1) => ObjectOf c (c v0 (c v1 v1)) => ObjectOf c (c (c v1 v1) (c v0 (c v1 v1))) => f v0 -> f v1 -> f v1
fromFoldableL :: forall a c f. Foldable f => Consable c => c a -> f a -> c a
Conversion from Foldable to Consable using foldl.
fromFoldableL [] [1,2,3,4] == [4,3,2,1]
fromFoldableL [0] [1,2,3,4] == [4,3,2,1,0]
fromFoldableR :: forall a c f. Foldable f => Consable c => c a -> f a -> c a
Conversion from Foldable to Consable using foldr.
fromFoldableR [] [1,2,3,4] == [1,2,3,4]
fromFoldableR [5] [1,2,3,4] == [1,2,3,4,5]
voidRight :: forall f a b. Functor f => a -> f b -> f a
Ignore the return value of a computation, using the specified return value instead.
functorDecorate :: forall b a f. Functor f => Decorate a b => a -> f b -> f a
seek :: forall s a w. ComonadStore s w => s -> w a -> w a
Reposition the focus at the specified position.
filled :: forall m a style. MonadCanvasAction m => CanvasStyle style => style -> m a -> m a
Run a MonadCanvasAction with the given fillStyle, resetting it to the
previous value after
putCtx :: forall a html ctx. Ctx ctx html => ctx -> html a -> html a
stroked :: forall m a style. MonadCanvasAction m => CanvasStyle style => style -> m a -> m a
Run a MonadCanvasAction with the given strokeStyle, resetting it to the
previous value after
tellAccum :: forall acc html a. TellAccum acc html => acc -> html a -> html a
scalarMul :: forall f k. VectorField f k => k -> f k -> f k
- ∀v in V: one * v == v
- ∀a b in K, v in V: a * (b .* v) = (a * b) .* v
- ∀a b in K, v in V:
- a .* (u + v) = a .* u + a .* v
- (a + b) .* v = a .* v + b .* v
cons :: forall t a. Consable t => a -> t a -> t a
cons :: forall f a. Container f => a -> f a -> f a
insert :: forall f a. Container f => Ord a => a -> f a -> f a
option :: forall a m. Alternative m => a -> m a -> m a
replaceInArray :: forall a f. HasUuid a => Functor f => a -> f a -> f a
apply :: forall a b. (a -> b) -> a -> b
Applies a function to an argument. This is primarily used as the operator
($) which allows parentheses to be omitted in some cases, or as a
natural way to apply a chain of composed functions to a value.
un :: forall t a. Newtype t a => (a -> t) -> t -> a
Given a constructor for a Newtype, this returns the appropriate unwrap
function.
memoize :: forall a b. Tabulate a => (a -> b) -> a -> b
Memoize a function of one argument
flipScalarMul :: forall k f. VectorField f k => f k -> k -> f k
get :: forall v s r' r l g f. Cons s v r' r => RGet f g s l r => RowToList r l => g s -> f r -> v
match :: forall v r1 r0 l1 l0 g f. RMatch f g v l0 r0 l1 r1 => RowToList r0 l0 => RowToList r1 l1 => f r0 -> g r1 -> v
memoize :: forall b a. Tabulate a => (a -> b) -> a -> b
Memoize a function of one argument
over :: forall s t a b @sym lenses. IsSymbol sym => ParseSymbol sym lenses => ConstructBarlow lenses Function s t a b => (a -> b) -> s -> t
applicator :: forall b a. (a -> b) -> a -> b
A combinator - applicator
Λ a b . (a → b) → a → b
λ f x . f x
foldMap :: forall a b s. Convert s (Statements a) => Monoid b => (a -> b) -> s -> b
idstar :: forall b a. (a -> b) -> a -> b
I* combinator - id bird once removed
S(SK)
Λ a b . (a → b) → a → b
λ f x . f x
local :: forall a b r. (a -> b) -> (Ask b => r) -> (Ask a => r)
Run a function over an implicit parameter
Note: Be careful while using this to map over the value without updating the type.
-- evaluates to `1`, not `2` provide 1 (local ((*) 2) (ask @Int))
mapUndefined :: forall b a. (a -> b) -> a -> b
memoize :: forall a b. (a -> b) -> a -> b
Memoize the function f. If the argument of f differs from the previous call, then f is recomputed.
moldMap :: forall t e m. Moldable t e => Monoid m => (e -> m) -> t -> m
moldMapDefaultL :: forall m e t. Moldable t e => Monoid m => (e -> m) -> t -> m
moldMapDefaultR :: forall m e t. Moldable t e => Monoid m => (e -> m) -> t -> m
A default implementation of moldMap based on moldr
nmap :: forall fa fb a b. NestedFunctor fa fb a b => (a -> b) -> fa -> fb
snoc :: forall f a. Container f => f a -> a -> f a
voidLeft :: forall f a b. Functor f => f a -> b -> f b
A version of voidRight with its arguments flipped.
rsingleton :: forall f g s v r. RSingleton f g s => Cons s v () r => Lacks s () => g s -> v -> f r
singleton :: forall v s r g f. Cons s v () r => Lacks s () => RSingleton f g s => g s -> v -> f r
functorDecorateFlipped :: forall b a f. Functor f => Decorate b a => f a -> b -> f b
modify :: forall t a. Newtype t a => (a -> a) -> t -> t
This combinator unwraps the newtype, applies a monomorphic function to the contained value and wraps the result back in the newtype
transAnaT :: forall t f. Recursive t f => Corecursive t f => (t -> t) -> t -> t