category (empty) → 0.1.0.0

raw patch · 6 files changed

+86/−0 lines, 6 filesdep +basesetup-changed

Dependencies added: base

Files

• Control/Category/Dual.hs +12/−0
• Control/Category/Groupoid.hs +9/−0
• LICENSE +30/−0
• Prelude.hs +11/−0
• Setup.hs +2/−0
• category.cabal +22/−0

@@ -0,0 +1,12 @@+module Control.Category.Dual where++import Control.Category.Groupoid++newtype Dual k a b = Dual { dual :: k b a } deriving (Data, Typeable)++instance Category k => Category (Dual k) where+    id = Dual id+    Dual f . Dual g = Dual (g . f)++instance Groupoid k => Groupoid (Dual k) where+    invert = Dual . invert . dual

@@ -0,0 +1,9 @@+{-# LANGUAGE GADTs #-}++module Control.Category.Groupoid where++class Category k => Groupoid k where+    invert :: k a b -> k b a++instance Groupoid (:~:) where+    invert Refl = Refl

@@ -0,0 +1,30 @@+Copyright (c) 2017, M Farkas-Dyck++All rights reserved.++Redistribution and use in source and binary forms, with or without+modification, are permitted provided that the following conditions are met:++    * Redistributions of source code must retain the above copyright+      notice, this list of conditions and the following disclaimer.++    * Redistributions in binary form must reproduce the above+      copyright notice, this list of conditions and the following+      disclaimer in the documentation and/or other materials provided+      with the distribution.++    * Neither the name of M Farkas-Dyck nor the names of other+      contributors may be used to endorse or promote products derived+      from this software without specific prior written permission.++THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

@@ -0,0 +1,11 @@+module Prelude (module Control.Category,+                module Data.Data,+                module Data.Either,+                module Data.Type.Equality,+                module Data.Typeable) where++import Control.Category+import Data.Data+import Data.Either+import Data.Type.Equality+import Data.Typeable

@@ -0,0 +1,2 @@+import Distribution.Simple+main = defaultMain

@@ -0,0 +1,22 @@+name:                category+version:             0.1.0.0+synopsis:            Categorical types and classes+-- description:         +license:             BSD3+license-file:        LICENSE+author:              M Farkas-Dyck+maintainer:          strake888@gmail.com+-- copyright:           +category:            Control+build-type:          Simple+cabal-version:       >=1.10++library+  exposed-modules:     Control.Category.Dual+                     , Control.Category.Groupoid+  other-modules:       Prelude+  build-depends:       base >=4.10 && <5+  default-language:    Haskell2010+  default-extensions:  LambdaCase+                     , DeriveDataTypeable+  ghc-options:         -Wall