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## Copyright (c) Eduardo Julian. All rights reserved.
## This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
## If a copy of the MPL was not distributed with this file,
## You can obtain one at http://mozilla.org/MPL/2.0/.
(;module: lux)
(sig: #export (Functor f)
(: (All [a b]
(-> (-> a b) (f a) (f b)))
map))
(struct: #export (compF Functor<F> Functor<G>)
{#;doc "Functor composition."}
(All [F G] (-> (Functor F) (Functor G) (Functor (All [a] (F (G a))))))
(def: (map f fga)
(:: Functor<F> map (:: Functor<G> map f) fga)))
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