name:          constraints
category:      Constraints
version:       0.13.4
x-revision: 2
license:       BSD2
cabal-version: >= 1.10
license-file:  LICENSE
author:        Edward A. Kmett
maintainer:    Edward A. Kmett <ekmett@gmail.com>
stability:     experimental
homepage:      http://github.com/ekmett/constraints/
bug-reports:   http://github.com/ekmett/constraints/issues
copyright:     Copyright (C) 2011-2015 Edward A. Kmett
synopsis:      Constraint manipulation
description:
  GHC 7.4 gave us the ability to talk about @ConstraintKinds@. They stopped crashing the compiler in GHC 7.6.
  .
  This package provides a vocabulary for working with them.

build-type:    Simple
tested-with:   GHC == 7.8.4
             , GHC == 7.10.3
             , GHC == 8.0.2
             , GHC == 8.2.2
             , GHC == 8.4.4
             , GHC == 8.6.5
             , GHC == 8.8.4
             , GHC == 8.10.7
             , GHC == 9.0.2
             , GHC == 9.2.1
extra-source-files: README.markdown
                  , CHANGELOG.markdown

source-repository head
  type: git
  location: git://github.com/ekmett/constraints.git

library
  hs-source-dirs: src

  default-language: Haskell2010
  other-extensions:
    FunctionalDependencies,
    ScopedTypeVariables,
    StandaloneDeriving,
    FlexibleInstances,
    FlexibleContexts,
    ConstraintKinds,
    KindSignatures,
    TypeOperators,
    Rank2Types,
    GADTs

  build-depends:
    base >= 4.7 && < 4.20,
    binary >= 0.7.1 && < 0.9,
    deepseq >= 1.3 && < 1.6,
    ghc-prim,
    hashable >= 1.2 && < 1.5,
    mtl >= 2.1.2 && < 2.4,
    transformers >= 0.3.0.0 && < 0.7,
    transformers-compat >= 0.5 && < 1,
    type-equality >= 1 && < 2
  if impl(ghc < 8.0)
    build-depends: semigroups >= 0.17 && < 0.21

  exposed-modules:
    Data.Constraint
    Data.Constraint.Deferrable
    Data.Constraint.Forall
    Data.Constraint.Lifting
    Data.Constraint.Unsafe

  if impl(ghc >= 8)
    exposed-modules:
      Data.Constraint.Nat
      Data.Constraint.Symbol

  ghc-options: -Wall
  if impl(ghc >= 8.6)
    ghc-options: -Wno-star-is-type

test-suite spec
  type: exitcode-stdio-1.0
  default-language: Haskell2010
  hs-source-dirs: tests
  main-is: Spec.hs
  other-modules: GH55Spec
  ghc-options: -Wall -threaded -rtsopts
  build-tool-depends: hspec-discover:hspec-discover >= 2
  build-depends:
    base >= 4.7 && < 5,
    constraints,
    hspec >= 2