cabal-version: 2.4 name: relude version: 0.7.0.0 synopsis: Safe, performant, user-friendly and lightweight Haskell Standard Library description: @__relude__@ is an alternative prelude library. If you find the default @Prelude@ unsatisfying, despite its advantages, consider using @relude@ instead. . == Relude goals and design principles * __Productivity.__ You can be more productive with a "non-standard" standard library, and @relude@ helps you with writing safer and more efficient code faster. . * __Total programming__. Usage of [/partial functions/](https://www.reddit.com/r/haskell/comments/5n51u3/why_are_partial_functions_as_in_head_tail_bad/) can lead to unexpected bugs and runtime exceptions in pure code. The types of partial functions lie about their behaviour. And even if it is not always possible to rely only on total functions, @relude@ strives to encourage best-practices and reduce the chances of introducing a bug. . +---------------------------------+--------------------------------------------+ | __Partial__ | __Total__ | +=================================+============================================+ | @head :: [a] -> a@ | @head :: NonEmpty a -> a@ | +---------------------------------+--------------------------------------------+ | @tail :: [a] -> [a]@ | @tail :: NonEmpty a -> [a]@ | +---------------------------------+--------------------------------------------+ | @read :: Read a => String -> a@ | @readMaybe :: Read a => String -> Maybe a@ | +---------------------------------+--------------------------------------------+ | @fromJust :: Maybe a -> a@ | @fromMaybe :: a -> Maybe a -> a@ | +---------------------------------+--------------------------------------------+ . * __Type-safety__. We use the /"make invalid states unrepresentable"/ motto as one of our guiding principles. If it is possible, we express this concept through the types. /Example:/ @ whenNotNull :: Applicative f => [a] -> (NonEmpty a -> f ()) -> f () @ . * __Performance.__ We prefer @Text@ over @[String](https://www.reddit.com/r/haskell/comments/29jw0s/whats_wrong_with_string/)@, use space-leaks-free functions (e.g. our custom performant @sum@ and @product@), introduce @\{\-\# INLINE \#\-\}@ and @\{\-\# SPECIALIZE \#\-\}@ pragmas where appropriate, and make efficient container types (e.g. @Map@, @HashMap@, @Set@) more accesible. . * __Minimalism__ (low number of dependencies). We don not force users of @relude@ to stick to any specific lens or text formatting or logging library. Where possible, @relude@ depends only on boot libraries. The [Dependency graph](https://raw.githubusercontent.com/kowainik/relude/master/relude-dependency-graph.png) of @relude@ can give you a clearer picture. . * __Convenience__. Despite minimalism, we want to bring commonly used types and functions into scope, and make available functions easier to use. Some examples of conveniences: . 1. No need to import types like @NonEmpty@, @Text@, @Set@, @Reader[T]@, @MVar@, @STM@ . 2. Functions like @liftIO@, @fromMaybe@, @sortWith@ are avaiable by default as well . 3. @IO@ actions are lifted to @MonadIO@ . * __Excellent documentation.__ . 1. Tutorial . 2. Migration guide from @Prelude@ . 3. Haddock for every function with examples tested by [doctest](http://hackage.haskell.org/package/doctest). . 4. Documentation regarding [internal module structure](http://hackage.haskell.org/package/relude/docs/Relude.html) . 5. @relude@-specific [HLint](http://hackage.haskell.org/package/hlint) rules: @[.hlint.yaml](https://github.com/kowainik/relude/blob/master/.hlint.yaml)@ . * __User-friendliness.__ Anyone should be able to quickly migrate to @relude@. Only some basic familiarity with the common libraries like @text@ and @containers@ should be enough (but not necessary). . * __Exploration.__ We have space to experiment with new ideas and proposals without introducing breaking changes. @relude@ uses the approach with @Extra.*@ modules which are not exported by default. The chosen approach makes it quite easy for us to provide new functionality without breaking anything and let the users decide to use it or not. homepage: https://github.com/kowainik/relude bug-reports: https://github.com/kowainik/relude/issues license: MIT license-file: LICENSE author: Dmitrii Kovanikov, Veronika Romashkina, Stephen Diehl, Serokell maintainer: Kowainik copyright: 2016 Stephen Diehl, 2016-2018 Serokell, 2018-2020 Kowainik category: Prelude stability: stable build-type: Simple extra-doc-files: CHANGELOG.md README.md tested-with: GHC == 8.0.2 GHC == 8.2.2 GHC == 8.4.4 GHC == 8.6.5 GHC == 8.8.3 GHC == 8.10.1 source-repository head type: git location: git@github.com:kowainik/relude.git common common-options build-depends: base >= 4.9 && < 4.15 ghc-options: -Wall -Wcompat -Widentities -Wincomplete-uni-patterns -Wincomplete-record-updates -fwarn-implicit-prelude if impl(ghc >= 8.0) ghc-options: -Wredundant-constraints if impl(ghc >= 8.2) ghc-options: -fhide-source-paths if impl(ghc >= 8.4) ghc-options: -Wmissing-export-lists -Wpartial-fields if impl(ghc >= 8.8) ghc-options: -Wmissing-deriving-strategies if impl(ghc >= 8.10) ghc-options: -Wunused-packages default-language: Haskell2010 default-extensions: InstanceSigs NoImplicitPrelude OverloadedStrings ScopedTypeVariables TypeApplications library import: common-options hs-source-dirs: src exposed-modules: Relude Relude.Applicative Relude.Base Relude.Bool Relude.Bool.Guard Relude.Bool.Reexport Relude.Container Relude.Container.One Relude.Container.Reexport Relude.Debug Relude.DeepSeq Relude.Exception Relude.File Relude.Foldable Relude.Foldable.Fold Relude.Foldable.Reexport Relude.Function Relude.Functor Relude.Functor.Fmap Relude.Functor.Reexport Relude.Lifted Relude.Lifted.Concurrent Relude.Lifted.Exit Relude.Lifted.File Relude.Lifted.IORef Relude.Lifted.Terminal Relude.List Relude.List.NonEmpty Relude.List.Reexport Relude.Monad Relude.Monad.Either Relude.Monad.Maybe Relude.Monad.Reexport Relude.Monad.Trans Relude.Monoid Relude.Nub Relude.Numeric Relude.Print Relude.String Relude.String.Conversion Relude.String.Reexport -- not exported by default Relude.Extra Relude.Extra.Bifunctor Relude.Extra.CallStack Relude.Extra.Enum Relude.Extra.Foldable Relude.Extra.Foldable1 Relude.Extra.Group Relude.Extra.Lens Relude.Extra.Map Relude.Extra.Newtype Relude.Extra.Tuple Relude.Extra.Type Relude.Extra.Validation Relude.Unsafe build-depends: bytestring ^>= 0.10 , containers >= 0.5.7 && < 0.7 , deepseq ^>= 1.4 , ghc-prim >= 0.4.0.0 && < 0.7 , hashable >= 1.2 && < 1.4 , mtl ^>= 2.2 , stm >= 2.4 && < 2.6 , text ^>= 1.2 , transformers ^>= 0.5 , unordered-containers >= 0.2.7 && < 0.3 test-suite relude-test import: common-options type: exitcode-stdio-1.0 hs-source-dirs: test main-is: Spec.hs other-modules: Test.Relude.Gen Test.Relude.Container.One Test.Relude.Property Test.Relude.Extra.Validation.Property build-depends: relude , bytestring , containers , text , hedgehog ^>= 1.0 ghc-options: -threaded test-suite relude-doctest import: common-options type: exitcode-stdio-1.0 hs-source-dirs: test main-is: Doctest.hs build-depends: relude , doctest , Glob ghc-options: -threaded benchmark relude-benchmark import: common-options type: exitcode-stdio-1.0 hs-source-dirs: benchmark main-is: Main.hs build-depends: relude , gauge , unordered-containers ghc-options: -threaded -rtsopts -with-rtsopts=-N