| Safe Haskell | Safe |
|---|---|
| Language | Haskell98 |
Data.Tuple.Solo
Description
Solo fills the tuple gap with a singleton tuple.
Solo does not support the usual parenthesized tuple syntax.
- has the expected laziness properties
- can be pattern-matched
- ships with instances for several standard type classes, including all those supported by H98-standard tuples
- requires no language extensions, except for hierarchical modules
Note: on GHC-9.0 getSolo is not a record selector.
Documentation
Constructors
| Solo a |
Instances
| Foldable Solo | Since: base-4.15 |
Defined in Data.Foldable Methods fold :: Monoid m => Solo m -> m Source # foldMap :: Monoid m => (a -> m) -> Solo a -> m Source # foldMap' :: Monoid m => (a -> m) -> Solo a -> m Source # foldr :: (a -> b -> b) -> b -> Solo a -> b Source # foldr' :: (a -> b -> b) -> b -> Solo a -> b Source # foldl :: (b -> a -> b) -> b -> Solo a -> b Source # foldl' :: (b -> a -> b) -> b -> Solo a -> b Source # foldr1 :: (a -> a -> a) -> Solo a -> a Source # foldl1 :: (a -> a -> a) -> Solo a -> a Source # toList :: Solo a -> [a] Source # null :: Solo a -> Bool Source # length :: Solo a -> Int Source # elem :: Eq a => a -> Solo a -> Bool Source # maximum :: Ord a => Solo a -> a Source # minimum :: Ord a => Solo a -> a Source # | |
| Traversable Solo | Since: base-4.15 |
| Applicative Solo | Since: base-4.15 |
| Functor Solo | Since: base-4.15 |
| Monad Solo | Since: base-4.15 |
| Monoid a => Monoid (a) | Since: base-4.15 |
| Semigroup a => Semigroup (a) | Since: base-4.15 |
| Read a => Read (a) | Since: base-4.15 |
| Show a => Show (a) | Since: base-4.15 |