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Diffstat (limited to 'stdlib/source/lux/control/functor.lux')
| -rw-r--r-- | stdlib/source/lux/control/functor.lux | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/stdlib/source/lux/control/functor.lux b/stdlib/source/lux/control/functor.lux new file mode 100644 index 000000000..711c5ae16 --- /dev/null +++ b/stdlib/source/lux/control/functor.lux @@ -0,0 +1,16 @@ +## 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)) + +(def: #export (compF Functor<F> Functor<G>) + (All [F G] (-> (Functor F) (Functor G) (Functor (All [a] (F (G a)))))) + (struct (def: (map f fga) + (:: Functor<F> map (:: Functor<G> map f) fga)))) |