| Copyright | (C) 2012-16 Edward Kmett |
|---|---|
| License | BSD-style (see the file LICENSE) |
| Maintainer | Edward Kmett <ekmett@gmail.com> |
| Stability | provisional |
| Portability | non-portable |
| Safe Haskell | Trustworthy |
| Language | Haskell98 |
Control.Lens.Empty
Description
Documentation
class AsEmpty a where Source #
Methods
_Empty :: Prism' a () Source #
>>>isn't _Empty [1,2,3]True
_Empty :: (Monoid a, Eq a) => Prism' a () Source #
>>>isn't _Empty [1,2,3]True
Instances
| AsEmpty Ordering Source # | |
| AsEmpty () Source # | |
| AsEmpty Event Source # | |
| AsEmpty All Source # | |
| AsEmpty Any Source # | |
| AsEmpty ByteString Source # | |
| AsEmpty ByteString Source # | |
| AsEmpty IntSet Source # | |
| AsEmpty Text Source # | |
| AsEmpty Text Source # | |
| AsEmpty [a] Source # | |
| AsEmpty (Maybe a) Source # | |
| AsEmpty a => AsEmpty (Dual a) Source # | |
| (Eq a, Num a) => AsEmpty (Sum a) Source # | |
| (Eq a, Num a) => AsEmpty (Product a) Source # | |
| AsEmpty (First a) Source # | |
| AsEmpty (Last a) Source # | |
| AsEmpty (IntMap a) Source # | |
| AsEmpty (Seq a) Source # | |
| AsEmpty (Set a) Source # | |
| AsEmpty (HashSet a) Source # | |
| AsEmpty (Vector a) Source # | |
| Storable a => AsEmpty (Vector a) Source # | |
| Unbox a => AsEmpty (Vector a) Source # | |
| (AsEmpty a, AsEmpty b) => AsEmpty (a, b) Source # | |
| AsEmpty (Map k a) Source # | |
| AsEmpty (HashMap k a) Source # | |
| (AsEmpty a, AsEmpty b, AsEmpty c) => AsEmpty (a, b, c) Source # | |