{-# LANGUAGE TemplateHaskell, TypeFamilies, TypeOperators, FlexibleInstances, MultiParamTypeClasses #-}

-- |
-- Lenses for several data types of the 'Distribution.Package' module.
-- All lenses are named after their field names with a 'L' appended.

module CabalLenses.Package where

import Distribution.Package (PackageIdentifier(..) , Dependency(..))
import Distribution.Types.PackageName
import Distribution.Version (VersionRange)
import Control.Lens


makeLensesFor [ ("pkgName"   , "pkgNameL")
              , ("pkgVersion", "pkgVersionL")
              ] ''PackageIdentifier


instance (t ~ PackageName) => Rewrapped PackageName t
instance Wrapped PackageName where
  type Unwrapped PackageName = String
  _Wrapped' :: Iso' PackageName (Unwrapped PackageName)
_Wrapped' = (PackageName -> String)
-> (String -> PackageName)
-> Iso PackageName PackageName String String
forall s a b t. (s -> a) -> (b -> t) -> Iso s t a b
iso PackageName -> String
getPackageName String -> PackageName
mkPackageName
     where
        getPackageName :: PackageName -> String
getPackageName PackageName
pkg = PackageName -> String
unPackageName PackageName
pkg
  {-# INLINE _Wrapped' #-}


packageName :: Lens' Dependency PackageName
packageName :: Lens' Dependency PackageName
packageName = (Dependency -> PackageName)
-> (Dependency -> PackageName -> Dependency)
-> Lens' Dependency PackageName
forall s a b t. (s -> a) -> (s -> b -> t) -> Lens s t a b
lens Dependency -> PackageName
getPkgName Dependency -> PackageName -> Dependency
setPkgName
   where
      getPkgName :: Dependency -> PackageName
getPkgName (Dependency PackageName
pkgName VersionRange
_ NonEmptySet LibraryName
_)                 = PackageName
pkgName
      setPkgName :: Dependency -> PackageName -> Dependency
setPkgName (Dependency PackageName
_ VersionRange
range NonEmptySet LibraryName
libNames) PackageName
newPkgName = PackageName
-> VersionRange -> NonEmptySet LibraryName -> Dependency
Dependency PackageName
newPkgName VersionRange
range NonEmptySet LibraryName
libNames


versionRange :: Lens' Dependency VersionRange
versionRange :: Lens' Dependency VersionRange
versionRange = (Dependency -> VersionRange)
-> (Dependency -> VersionRange -> Dependency)
-> Lens' Dependency VersionRange
forall s a b t. (s -> a) -> (s -> b -> t) -> Lens s t a b
lens Dependency -> VersionRange
getRange Dependency -> VersionRange -> Dependency
setRange
   where
      getRange :: Dependency -> VersionRange
getRange (Dependency PackageName
_ VersionRange
range NonEmptySet LibraryName
_)                   = VersionRange
range
      setRange :: Dependency -> VersionRange -> Dependency
setRange (Dependency PackageName
pkgName VersionRange
_ NonEmptySet LibraryName
libNames) VersionRange
newRange = PackageName
-> VersionRange -> NonEmptySet LibraryName -> Dependency
Dependency PackageName
pkgName VersionRange
newRange NonEmptySet LibraryName
libNames