master..1cecd27 · type-fun

CHANGELOG.md−7

since splitsnapshots

unifiedsplit

@@ -4,13 +4,6 @@

4

5# CHANGELOG

6

7−## 0.1.2

8−### Added KnownPeano

9−

10−## 0.1.1

11−### Fixed

12−* Compilable with ghc-8.0.1

13−

14## 0.1.0

7## 0.1.0

15### Added

8### Added

16* Type family `Substract` to remove elements of one list from another

9* Type family `Substract` to remove elements of one list from another

example/Main.hs−1

@@ -37,5 +37,4 @@ main = do

37 print $ prefixConstr p2

38 print $ prefixConstr p3

39 print $ uniqConstr p2

40− print $ peanoVal (Proxy :: Proxy (FromNat 100))

41 -- print $ uniqConstr p3 -- < ElementIsNotUniqInList Int '[Int, Bool, Int]

40 -- print $ uniqConstr p3 -- < ElementIsNotUniqInList Int '[Int, Bool, Int]

src/TypeFun/Data/Peano.hs+3−14

@@ -1,6 +1,5 @@

1module TypeFun.Data.Peano

2 ( N(..)

3− , KnownPeano(..)

4 , ToNat

3 , ToNat

5 , FromNat

4 , FromNat

6 , (:+:)

5 , (:+:)

@@ -8,24 +7,14 @@ module TypeFun.Data.Peano

8 , (:*:)

7 , (:*:)

9 ) where

8 ) where

10

9

11−import Data.Typeable

10+import Data.Typeable

12−import GHC.Generics (Generic)

11+import GHC.Generics (Generic)

13−import GHC.TypeLits

12+import GHC.TypeLits

14

13

15data N = Z | S N

14data N = Z | S N

16 deriving ( Eq, Ord, Read, Show

15 deriving ( Eq, Ord, Read, Show

17 , Generic, Typeable )

16 , Generic, Typeable )

18

17

19−-- | @since 0.1.2

20−class KnownPeano (p :: N) where

21− peanoVal :: proxy p -> Integer

22−

23−instance KnownPeano Z where

24− peanoVal _ = 0

25−

26−instance (KnownPeano n) => KnownPeano (S n) where

27− peanoVal _ = succ $ peanoVal (Proxy :: Proxy n)

28−

29type family ToNat (a :: N) :: Nat where

18type family ToNat (a :: N) :: Nat where

30 ToNat Z = 0

19 ToNat Z = 0

31 ToNat (S a) = 1 + (ToNat a)

20 ToNat (S a) = 1 + (ToNat a)

stack.yamldeleted−9

@@ -1,9 +0,0 @@

1−nix:

2− packages:

3− - zlib

4− - postgresql

5−

6−resolver: lts-13.21

7−

8−packages:

9− - .

stack.yaml.lockdeleted−12

@@ -1,12 +0,0 @@

1−# This file was autogenerated by Stack.

2−# You should not edit this file by hand.

3−# For more information, please see the documentation at:

4−# https://docs.haskellstack.org/en/stable/lock_files

5−

6−packages: []

7−snapshots:

8−- completed:

9− size: 498180

10− url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/13/21.yaml

11− sha256: eff2de19a6d4691ccbf6edc1fba858f1918683047dce0f09adede874bbd2a8f3

12− original: lts-13.21

type-fun.cabal+2−2

@@ -1,5 +1,5 @@

1name: type-fun

2−version: 0.1.2

2+version: 0.1.0

3synopsis: Collection of widely reimplemented type families

4license: BSD3

5license-file: LICENSE

@@ -36,7 +36,7 @@ library

36 , TypeFun.Data.Maybe

37 , TypeFun.Data.Peano

38

39− build-depends: base >= 4.7 && < 5

39+ build-depends: base >=4.7 && <4.9

40

41test-suite example

42 type: exitcode-stdio-1.0