| Copyright | (C) 2014 Jan Stolarek |
|---|---|
| License | BSD-style (see LICENSE) |
| Maintainer | jan.stolarek@p.lodz.pl |
| Stability | experimental |
| Portability | non-portable |
| Safe Haskell | None |
| Language | Haskell2010 |
Data.Promotion.Prelude.Either
Description
Defines promoted functions and datatypes relating to Either,
including a promoted version of all the definitions in Data.Either.
Because many of these definitions are produced by Template Haskell,
it is not possible to create proper Haddock documentation. Please look
up the corresponding operation in Data.Either. Also, please excuse
the apparent repeated variable names. This is due to an interaction
between Template Haskell and Haddock.
- either_ :: forall a c b. (a -> c) -> (b -> c) -> Either a b -> c
- type family Either_ (a :: TyFun a c -> Type) (a :: TyFun b c -> Type) (a :: Either a b) :: c where ...
- type family Lefts (a :: [Either a b]) :: [a] where ...
- type family Rights (a :: [Either a b]) :: [b] where ...
- type family PartitionEithers (a :: [Either a b]) :: ([a], [b]) where ...
- type family IsLeft (a :: Either a b) :: Bool where ...
- type family IsRight (a :: Either a b) :: Bool where ...
- data LeftSym0 l
- type LeftSym1 t = Left t
- data RightSym0 l
- type RightSym1 t = Right t
- data Either_Sym0 l
- data Either_Sym1 l l
- data Either_Sym2 l l l
- type Either_Sym3 t t t = Either_ t t t
- data LeftsSym0 l
- type LeftsSym1 t = Lefts t
- data RightsSym0 l
- type RightsSym1 t = Rights t
- data IsLeftSym0 l
- type IsLeftSym1 t = IsLeft t
- data IsRightSym0 l
- type IsRightSym1 t = IsRight t
Promoted functions from Data.Either
type family Either_ (a :: TyFun a c -> Type) (a :: TyFun b c -> Type) (a :: Either a b) :: c where ... #
The preceding two definitions are derived from the function either in
Data.Either. The extra underscore is to avoid name clashes with the type
Either.
type family PartitionEithers (a :: [Either a b]) :: ([a], [b]) where ... #
Equations
| PartitionEithers a_6989586621679762551 = Apply (Apply (Apply FoldrSym0 (Apply (Apply Either_Sym0 (Let6989586621679762558LeftSym1 a_6989586621679762551)) (Let6989586621679762558RightSym1 a_6989586621679762551))) (Apply (Apply Tuple2Sym0 '[]) '[])) a_6989586621679762551 |
Defunctionalization symbols
Instances
| SuppressUnusedWarnings (TyFun a6989586621679054093 (Either a6989586621679054093 b6989586621679054094) -> *) (LeftSym0 a6989586621679054093 b6989586621679054094) # | |
| type Apply a6989586621679054093 (Either a6989586621679054093 b6989586621679054094) (LeftSym0 a6989586621679054093 b6989586621679054094) l0 # | |
Instances
| SuppressUnusedWarnings (TyFun b6989586621679054094 (Either a6989586621679054093 b6989586621679054094) -> *) (RightSym0 a6989586621679054093 b6989586621679054094) # | |
| type Apply b6989586621679054094 (Either a6989586621679054093 b6989586621679054094) (RightSym0 a6989586621679054093 b6989586621679054094) l0 # | |
data Either_Sym0 l #
Instances
| SuppressUnusedWarnings (TyFun (TyFun a6989586621679761240 c6989586621679761241 -> Type) (TyFun (TyFun b6989586621679761242 c6989586621679761241 -> Type) (TyFun (Either a6989586621679761240 b6989586621679761242) c6989586621679761241 -> Type) -> Type) -> *) (Either_Sym0 a6989586621679761240 b6989586621679761242 c6989586621679761241) # | |
| type Apply (TyFun a6989586621679761240 c6989586621679761241 -> Type) (TyFun (TyFun b6989586621679761242 c6989586621679761241 -> Type) (TyFun (Either a6989586621679761240 b6989586621679761242) c6989586621679761241 -> Type) -> Type) (Either_Sym0 a6989586621679761240 b6989586621679761242 c6989586621679761241) l0 # | |
data Either_Sym1 l l #
Instances
| SuppressUnusedWarnings ((TyFun a6989586621679761240 c6989586621679761241 -> Type) -> TyFun (TyFun b6989586621679761242 c6989586621679761241 -> Type) (TyFun (Either a6989586621679761240 b6989586621679761242) c6989586621679761241 -> Type) -> *) (Either_Sym1 b6989586621679761242 a6989586621679761240 c6989586621679761241) # | |
| type Apply (TyFun b6989586621679761242 c6989586621679761241 -> Type) (TyFun (Either a6989586621679761240 b6989586621679761242) c6989586621679761241 -> Type) (Either_Sym1 b6989586621679761242 a6989586621679761240 c6989586621679761241 l0) l1 # | |
data Either_Sym2 l l l #
Instances
| SuppressUnusedWarnings ((TyFun a6989586621679761240 c6989586621679761241 -> Type) -> (TyFun b6989586621679761242 c6989586621679761241 -> Type) -> TyFun (Either a6989586621679761240 b6989586621679761242) c6989586621679761241 -> *) (Either_Sym2 b6989586621679761242 a6989586621679761240 c6989586621679761241) # | |
| type Apply (Either a6989586621679761240 b6989586621679761242) c6989586621679761241 (Either_Sym2 b6989586621679761242 a6989586621679761240 c6989586621679761241 l1 l0) l2 # | |
type Either_Sym3 t t t = Either_ t t t #
Instances
| SuppressUnusedWarnings (TyFun [Either a6989586621679762510 b6989586621679762511] [a6989586621679762510] -> *) (LeftsSym0 b6989586621679762511 a6989586621679762510) # | |
| type Apply [Either a6989586621679762510 b6989586621679762511] [a6989586621679762510] (LeftsSym0 b6989586621679762511 a6989586621679762510) l0 # | |
data RightsSym0 l #
Instances
| SuppressUnusedWarnings (TyFun [Either a6989586621679762508 b6989586621679762509] [b6989586621679762509] -> *) (RightsSym0 a6989586621679762508 b6989586621679762509) # | |
| type Apply [Either a6989586621679762508 b6989586621679762509] [b6989586621679762509] (RightsSym0 a6989586621679762508 b6989586621679762509) l0 # | |
type RightsSym1 t = Rights t #
data IsLeftSym0 l #
Instances
| SuppressUnusedWarnings (TyFun (Either a6989586621679762504 b6989586621679762505) Bool -> *) (IsLeftSym0 a6989586621679762504 b6989586621679762505) # | |
| type Apply (Either a6989586621679762504 b6989586621679762505) Bool (IsLeftSym0 a6989586621679762504 b6989586621679762505) l0 # | |
type IsLeftSym1 t = IsLeft t #
data IsRightSym0 l #
Instances
| SuppressUnusedWarnings (TyFun (Either a6989586621679762502 b6989586621679762503) Bool -> *) (IsRightSym0 a6989586621679762502 b6989586621679762503) # | |
| type Apply (Either a6989586621679762502 b6989586621679762503) Bool (IsRightSym0 a6989586621679762502 b6989586621679762503) l0 # | |
type IsRightSym1 t = IsRight t #