/Haskell 7


Copyright (c) Ross Paterson 2014
License BSD-style (see the file LICENSE)
Maintainer [email protected]
Stability experimental
Portability portable
Safe Haskell Safe
Language Haskell98


Sums, lifted to functors.

data Sum f g a Source

Lifted sum of functors.


InL (f a)
InR (g a)


(Functor f, Functor g) => Functor (Sum f g)
(Foldable f, Foldable g) => Foldable (Sum f g)
(Traversable f, Traversable g) => Traversable (Sum f g)
(Show1 f, Show1 g) => Show1 (Sum f g)
(Read1 f, Read1 g) => Read1 (Sum f g)
(Ord1 f, Ord1 g) => Ord1 (Sum f g)
(Eq1 f, Eq1 g) => Eq1 (Sum f g)
(Eq1 f, Eq1 g, Eq a) => Eq (Sum f g a)
(Ord1 f, Ord1 g, Ord a) => Ord (Sum f g a)
(Read1 f, Read1 g, Read a) => Read (Sum f g a)
(Show1 f, Show1 g, Show a) => Show (Sum f g a)

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Licensed under a BSD-style license (see top of the page).