cabal-version: 2.2
name:          fix
version:       0.1
synopsis:      Fixed-point type
description:
  Fixed-point of a functor
  .
  @
  newtype Fix f = Fix (f (Fix f))
  @
  .
  Note: @NFData@ instance is provided only for @deepseq >=1.4.3.0@
  build-plans.

homepage:      https://github.com/phadej/fix
license:       BSD-2-Clause
license-file:  LICENSE
author:        Edward Kmett <ekmett@gmail.com>
maintainer:    Oleg Grenrus <oleg.grenrus@iki.fi>
copyright:     Copyright (c) 2011-2015 Edward Kmett, 2019 Oleg Grenrus
category:      Data Structures
build-type:    Simple
tested-with:
  GHC ==7.2.2
   || ==7.4.2
   || ==7.6.3
   || ==7.8.4
   || ==7.10.3
   || ==8.0.2
   || ==8.2.2
   || ==8.4.4
   || ==8.6.5
   || ==8.8.3
   || ==8.10.1

source-repository head
  type:     git
  location: https://github.com/phadej/fix

library
  hs-source-dirs:   src
  default-language: Haskell2010
  ghc-options:      -Wall
  exposed-modules:  Data.Fix

  if impl(ghc >=8.0)
    ghc-options: -Wno-trustworthy-safe

  if impl(ghc >=8.4)
    ghc-options:
      -Wincomplete-uni-patterns -Wincomplete-record-updates
      -Wredundant-constraints -Widentities -Wmissing-export-lists

  build-depends:
    , base      >=4.4     && <4.15
    , deepseq   >=1.3.0.0 && <1.5
    , hashable  >=1.2.7.0 && <1.4

  if !impl(ghc >=8.0)
    build-depends:
      , transformers         >=0.3   && <0.6
      , transformers-compat  ^>=0.6.5