key (empty) → 0.1.0.0

raw patch · 5 files changed

+100/−0 lines, 5 filesdep +basesetup-changed

Dependencies added: base

Files

• Control/Monad/Trans/Key.hs +24/−0
• LICENSE +30/−0
• README.md +1/−0
• Setup.hs +2/−0
• key.cabal +43/−0

@@ -0,0 +1,24 @@+{-# LANGUAGE RankNTypes #-}+{-# LANGUAGE GeneralizedNewtypeDeriving #-}++module Control.Monad.Trans.Key (Keyring, Key, newKey, unKeyring) where++import Control.Applicative+import Control.Monad (guard)+import Data.IORef+import Data.Type.Equality+import Numeric.Natural+import System.IO.Unsafe+import Unsafe.Coerce++newtype Keyring s a = Keyring (IORef Natural -> a) deriving (Functor, Applicative, Monad)+newtype Key s a = Key Natural++instance TestEquality (Key s) where+    Key i `testEquality` Key j = unsafeCoerce Refl <$ guard (i == j)++newKey :: Keyring s (Key s a)+newKey = Keyring $ \ r -> unsafePerformIO . atomicModifyIORef' r $ liftA2 (,) (+1) Key++unKeyring :: (∀ s . Keyring s a) -> a+unKeyring (Keyring f) = f $ unsafePerformIO $ newIORef 0

@@ -0,0 +1,30 @@+Copyright M Farkas-Dyck © 2019++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 +1,1 @@+# key

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

@@ -0,0 +1,43 @@+name:                key+version:             0.1.0.0+synopsis:            Type-safe unconstrained dynamic typing+description:         A library of monadic typed keys which can be compared for equality, returning an equality proof if equal.++                     See http://dx.doi.org/10.1145/2976002.2976008++                     The authors of the cited document and of this package are disjoint.+license:             BSD3+license-file:        LICENSE+author:              M Farkas-Dyck+maintainer:          strake888@gmail.com+copyright:           2019 M Farkas-Dyck+-- category:            +build-type:          Simple+extra-source-files:  README.md+cabal-version:       >=1.10++library+  hs-source-dirs:      .+  exposed-modules:     Control.Monad.Trans.Key+  build-depends:       base >= 4.7 && < 5+  default-language:    Haskell2010+  default-extensions:  UnicodeSyntax+                     , LambdaCase+                     , EmptyCase+                     , InstanceSigs+                     , PartialTypeSignatures+                     , PolyKinds+                     , MonadComprehensions+                     , StandaloneDeriving+                     , DeriveFunctor, DeriveFoldable, DeriveTraversable+  ghc-options:         -Wall -Wcompat -Wredundant-constraints -Wno-name-shadowing+                       -Wincomplete-record-updates -Wincomplete-uni-patterns+                       -Werror=incomplete-patterns+                       -Werror=incomplete-uni-patterns+                       -Werror=incomplete-record-updates+                       -Werror=missing-fields+                       -Werror=missing-methods++source-repository head+  type:     git+  location: https://github.com/strake/key.hs