| Copyright | (C) 2012-15 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
Minimal complete definition
Nothing
Instances
| AsEmpty Ordering | |
| AsEmpty () | |
| AsEmpty Event | |
| AsEmpty All | |
| AsEmpty Any | |
| AsEmpty ByteString | |
| AsEmpty ByteString | |
| AsEmpty IntSet | |
| AsEmpty Text | |
| AsEmpty Text | |
| AsEmpty [a] | |
| AsEmpty a => AsEmpty (Dual a) | |
| (Eq a, Num a) => AsEmpty (Sum a) | |
| (Eq a, Num a) => AsEmpty (Product a) | |
| AsEmpty (First a) | |
| AsEmpty (Last a) | |
| AsEmpty (Maybe a) | |
| AsEmpty (IntMap a) | |
| AsEmpty (Set a) | |
| AsEmpty (Seq a) | |
| AsEmpty (HashSet a) | |
| AsEmpty (Vector a) | |
| Unbox a => AsEmpty (Vector a) | |
| Storable a => AsEmpty (Vector a) | |
| (AsEmpty a, AsEmpty b) => AsEmpty (a, b) | |
| AsEmpty (Map k a) | |
| AsEmpty (HashMap k a) | |
| (AsEmpty a, AsEmpty b, AsEmpty c) => AsEmpty (a, b, c) |