Log.Internal.Aeson.Compat · log-base-0.12.1.0

value(!?) :: KeyMap v -> Key -> Maybe v

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Return the value to which the specified key is mapped, or Nothing if this map contains no mapping for the key.

This is a flipped version of lookup.

valuealignWith :: (These a b -> c) -> KeyMap a -> KeyMap b -> KeyMap c

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Generalized union with combining function.

valuealignWithKey :: (Key -> These a b -> c) -> KeyMap a -> KeyMap b -> KeyMap c

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Generalized union with combining function.

valuealterF

:: Functor f
=> Maybe v -> f (Maybe v)
-> Key
-> KeyMap v
-> f (KeyMap v)

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alterF can be used to insert, delete, or update a value in a map.

valuecoercionToHashMap :: Maybe (Coercion (HashMap Key v) (KeyMap v))

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valuecoercionToMap :: Maybe (Coercion (Map Key v) (KeyMap v))

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valuedelete :: Key -> KeyMap v -> KeyMap v

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Remove the mapping for the specified key from this map if present.

valuedifference :: KeyMap v -> KeyMap v' -> KeyMap v

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Difference of two maps. Return elements of the first map not existing in the second.

valueelems :: KeyMap v -> [v]

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Return a list of this map' elements.

valueempty :: KeyMap v

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Construct an empty map.

valuefilter :: (v -> Bool) -> KeyMap v -> KeyMap v

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Filter all keys/values that satisfy some predicate.

valuefilterWithKey :: (Key -> v -> Bool) -> KeyMap v -> KeyMap v

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Filter all keys/values that satisfy some predicate.

valuefoldMapWithKey :: Monoid m => (Key -> a -> m) -> KeyMap a -> m

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valuefoldl :: (b -> a -> b) -> b -> KeyMap a -> b

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valuefoldl' :: (b -> a -> b) -> b -> KeyMap a -> b

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valuefoldr :: (a -> b -> b) -> b -> KeyMap a -> b

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valuefoldr' :: (a -> b -> b) -> b -> KeyMap a -> b

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valuefoldrWithKey :: (Key -> v -> a -> a) -> a -> KeyMap v -> a

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Reduce this map by applying a binary operator to all elements, using the given starting value (typically the right-identity of the operator).

valuefromHashMap :: HashMap Key v -> KeyMap v

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Convert a HashMap to a KeyMap.

valuefromHashMapText :: HashMap Text v -> KeyMap v

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Convert a HashMap Textto a KeyMap.

valuefromList :: [(Key, v)] -> KeyMap v

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Construct a map with the supplied mappings. If the list contains duplicate mappings, the later mappings take precedence.

Example1 expression

>>> fromList [("a", 'x'), ("a", 'y')]fromList [("a",'y')]

valuefromListWith :: (v -> v -> v) -> [(Key, v)] -> KeyMap v

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Construct a map from a list of elements. Uses the provided function, f, to merge duplicate entries with (f newVal oldVal).

valuefromMap :: Map Key v -> KeyMap v

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Convert a Map to a KeyMap.

valuefromMapText :: Map Text v -> KeyMap v

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Convert a Map Textto a KeyMap.

valueinsert :: Key -> v -> KeyMap v -> KeyMap v

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Associate the specified value with the specified key in this map. If this map previously contained a mapping for the key, the old value is replaced.

valueinsertWith :: (a -> a -> a) -> Key -> a -> KeyMap a -> KeyMap a

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Insert with a function combining new and old values, taken in that order.

valueintersection :: KeyMap a -> KeyMap b -> KeyMap a

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The (left-biased) intersection of two maps (based on keys).

valueintersectionWith :: (a -> b -> c) -> KeyMap a -> KeyMap b -> KeyMap c

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The intersection with a combining function.

valueintersectionWithKey

:: Key -> a -> b -> c
-> KeyMap a
-> KeyMap b
-> KeyMap c

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The intersection with a combining function.

valuekeys :: KeyMap v -> [Key]

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Return a list of this map's keys.

valuelookup :: Key -> KeyMap v -> Maybe v

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Return the value to which the specified key is mapped, or Nothing if this map contains no mapping for the key.

valuemap :: (a -> b) -> KeyMap a -> KeyMap b

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Map a function over all values in the map.

valuemapKeyVal :: (Key -> Key) -> (v1 -> v2) -> KeyMap v1 -> KeyMap v2

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Transform the keys and values of a KeyMap.

valuemapMaybe :: (a -> Maybe b) -> KeyMap a -> KeyMap b

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Map values and collect the Just results.

valuemapMaybeWithKey :: (Key -> v -> Maybe u) -> KeyMap v -> KeyMap u

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Map values and collect the Just results.

valuemapWithKey :: (Key -> a -> b) -> KeyMap a -> KeyMap b

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Map a function over all values in the map.

valuemember :: Key -> KeyMap a -> Bool

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Is the key a member of the map?

valuenull :: KeyMap v -> Bool

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Is the map empty?

valuesingleton :: Key -> v -> KeyMap v

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Construct a map with a single element.

valuesize :: KeyMap v -> Int

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Return the number of key-value mappings in this map.

valuetoAscList :: KeyMap v -> [(Key, v)]

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Return a list of this map's elements in ascending order based of the textual key.

valuetoHashMap :: KeyMap v -> HashMap Key v

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Convert a KeyMap to a HashMap.

valuetoHashMapText :: KeyMap v -> HashMap Text v

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Convert a KeyMap to a HashMap Text.

valuetoList :: KeyMap v -> [(Key, v)]

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Return a list of this map's keys and elements.

The order is not stable. Use toAscList for stable ordering.

valuetoMap :: KeyMap v -> Map Key v

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Convert a KeyMap to a Map.

valuetoMapText :: KeyMap v -> Map Text v

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Convert a KeyMap to a Map Text.

valuetraverse :: Applicative f => (v1 -> f v2) -> KeyMap v1 -> f (KeyMap v2)

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Perform an Applicative action for each key-value pair in a KeyMap and produce a KeyMap of all the results.

valuetraverseWithKey

:: Applicative f
=> Key -> v1 -> f v2
-> KeyMap v1
-> f (KeyMap v2)

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Perform an Applicative action for each key-value pair in a KeyMap and produce a KeyMap of all the results.

valueunion :: KeyMap v -> KeyMap v -> KeyMap v

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The (left-biased) union of two maps. It prefers the first map when duplicate keys are encountered, i.e. (union == unionWith Prelude.const).

valueunionWith :: (v -> v -> v) -> KeyMap v -> KeyMap v -> KeyMap v

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The union with a combining function.

valueunionWithKey :: (Key -> v -> v -> v) -> KeyMap v -> KeyMap v -> KeyMap v

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The union with a combining function.

newtypenewtype Key

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Instances27Eq, Data, Ord, Read, Show, IsString, …

Eq KeyDefined in aeson-2.3.2.0 · Data.Aeson.Key
Data KeyDefined in aeson-2.3.2.0 · Data.Aeson.Key
Ord KeyDefined in aeson-2.3.2.0 · Data.Aeson.Key
Read KeyDefined in aeson-2.3.2.0 · Data.Aeson.Key
Show KeyDefined in aeson-2.3.2.0 · Data.Aeson.Key
IsString KeyDefined in aeson-2.3.2.0 · Data.Aeson.Key
Semigroup KeyDefined in aeson-2.3.2.0 · Data.Aeson.Key
Monoid KeyDefined in aeson-2.3.2.0 · Data.Aeson.Key
NFData KeyDefined in aeson-2.3.2.0 · Data.Aeson.Key
Arbitrary KeyDefined in aeson-2.3.2.0 · Data.Aeson.Key
CoArbitrary KeyDefined in aeson-2.3.2.0 · Data.Aeson.Key
Function KeyDefined in aeson-2.3.2.0 · Data.Aeson.Key
Hashable KeyDefined in aeson-2.3.2.0 · Data.Aeson.Key
FromJSON KeyDefined in aeson-2.3.2.0 · Data.Aeson.Types.FromJSON
FromJSONKey KeyDefined in aeson-2.3.2.0 · Data.Aeson.Types.FromJSON
ToJSON KeyDefined in aeson-2.3.2.0 · Data.Aeson.Types.ToJSON
ToJSONKey KeyDefined in aeson-2.3.2.0 · Data.Aeson.Types.ToJSON
Lift KeyDefined in aeson-2.3.2.0 · Data.Aeson.Key
FoldableWithIndex Key KeyMapDefined in aeson-2.3.2.0 · Data.Aeson.KeyMap
FunctorWithIndex Key KeyMapDefined in aeson-2.3.2.0 · Data.Aeson.KeyMap
TraversableWithIndex Key KeyMapDefined in aeson-2.3.2.0 · Data.Aeson.KeyMap
SemialignWithIndex Key KeyMapDefined in aeson-2.3.2.0 · Data.Aeson.KeyMap
ZipWithIndex Key KeyMapDefined in aeson-2.3.2.0 · Data.Aeson.KeyMap
FilterableWithIndex Key KeyMapDefined in aeson-2.3.2.0 · Data.Aeson.KeyMap
WitherableWithIndex Key KeyMapDefined in aeson-2.3.2.0 · Data.Aeson.KeyMap
FromPairs Value (DList Pair)Defined in aeson-2.3.2.0 · Data.Aeson.Types.ToJSON
v ~ Value => KeyValuePair v (DList Pair)Defined in aeson-2.3.2.0 · Data.Aeson.Types.ToJSON

newtypenewtype KeyMap v

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A map from JSON key type Key to v.

Instances38Functor, Foldable, Traversable, Arbitrary1, Align, Semialign, …

Functor KeyMapDefined in aeson-2.3.2.0 · Data.Aeson.KeyMap
Foldable KeyMapDefined in aeson-2.3.2.0 · Data.Aeson.KeyMap
Traversable KeyMapDefined in aeson-2.3.2.0 · Data.Aeson.KeyMap
Arbitrary1 KeyMapDefined in aeson-2.3.2.0 · Data.Aeson.KeyMap
Align KeyMapDefined in aeson-2.3.2.0 · Data.Aeson.KeyMap
Semialign KeyMapDefined in aeson-2.3.2.0 · Data.Aeson.KeyMap
Unzip KeyMapDefined in aeson-2.3.2.0 · Data.Aeson.KeyMap
Zip KeyMapDefined in aeson-2.3.2.0 · Data.Aeson.KeyMap
Filterable KeyMapDefined in aeson-2.3.2.0 · Data.Aeson.KeyMap
Witherable KeyMapDefined in aeson-2.3.2.0 · Data.Aeson.KeyMap
FromJSON1 KeyMapDefined in aeson-2.3.2.0 · Data.Aeson.Types.FromJSON
ToJSON1 KeyMapDefined in aeson-2.3.2.0 · Data.Aeson.Types.ToJSON
FoldableWithIndex Key KeyMapDefined in aeson-2.3.2.0 · Data.Aeson.KeyMap
FunctorWithIndex Key KeyMapDefined in aeson-2.3.2.0 · Data.Aeson.KeyMap
TraversableWithIndex Key KeyMapDefined in aeson-2.3.2.0 · Data.Aeson.KeyMap
SemialignWithIndex Key KeyMapDefined in aeson-2.3.2.0 · Data.Aeson.KeyMap
ZipWithIndex Key KeyMapDefined in aeson-2.3.2.0 · Data.Aeson.KeyMap
FilterableWithIndex Key KeyMapDefined in aeson-2.3.2.0 · Data.Aeson.KeyMap
WitherableWithIndex Key KeyMapDefined in aeson-2.3.2.0 · Data.Aeson.KeyMap
Lift v => Lift (KeyMap v)Defined in aeson-2.3.2.0 · Data.Aeson.KeyMap
value ~ Value => KeyValue Value (KeyMap value)Defined in aeson-2.3.2.0 · Data.Aeson.Types.ToJSON
Constructs a singleton KeyMap. For calling functions that demand an Object for constructing objects. To be used in conjunction with mconcat. Prefer to use object where possible.
value ~ Value => KeyValueOmit Value (KeyMap value)Defined in aeson-2.3.2.0 · Data.Aeson.Types.ToJSON
IsList (KeyMap v)Defined in aeson-2.3.2.0 · Data.Aeson.KeyMap
Eq v => Eq (KeyMap v)Defined in aeson-2.3.2.0 · Data.Aeson.KeyMap
Data v => Data (KeyMap v)Defined in aeson-2.3.2.0 · Data.Aeson.KeyMap
Ord v => Ord (KeyMap v)Defined in aeson-2.3.2.0 · Data.Aeson.KeyMap
Read v => Read (KeyMap v)Defined in aeson-2.3.2.0 · Data.Aeson.KeyMap
Show v => Show (KeyMap v)Defined in aeson-2.3.2.0 · Data.Aeson.KeyMap
Semigroup (KeyMap v)Defined in aeson-2.3.2.0 · Data.Aeson.KeyMap
Monoid (KeyMap v)Defined in aeson-2.3.2.0 · Data.Aeson.KeyMap
NFData v => NFData (KeyMap v)Defined in aeson-2.3.2.0 · Data.Aeson.KeyMap
Arbitrary v => Arbitrary (KeyMap v)Defined in aeson-2.3.2.0 · Data.Aeson.KeyMap
CoArbitrary v => CoArbitrary (KeyMap v)Defined in aeson-2.3.2.0 · Data.Aeson.KeyMap
Function v => Function (KeyMap v)Defined in aeson-2.3.2.0 · Data.Aeson.KeyMap
Hashable v => Hashable (KeyMap v)Defined in aeson-2.3.2.0 · Data.Aeson.KeyMap
FromJSON v => FromJSON (KeyMap v)Defined in aeson-2.3.2.0 · Data.Aeson.Types.FromJSON
ToJSON v => ToJSON (KeyMap v)Defined in aeson-2.3.2.0 · Data.Aeson.Types.ToJSON
type Item (KeyMap v) = (Key, v)Defined in aeson-2.3.2.0 · Data.Aeson.KeyMap

valuefromText :: Text -> Key

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valuedoName :: Monad m => (Text -> m Text) -> Key -> m Key

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