-- Initial trivial-constraint.cabal generated by cabal init. For further -- documentation, see http://haskell.org/cabal/users-guide/ name: trivial-constraint version: 0.3.0.0 x-revision: 1 synopsis: Constraints that any type, resp. no type fulfills description: Since GHC 7.4, constraints are first-class: we have the constraint kind, and thus type-classes have a kind such as @* -> Constraint@. . These can be used as parameters to data types. They also can be combined quite nicely, . @ type NewConstraint a = (Constraint1 a, Constraint2 a) @ . however you always need to start with a plain old type class when building constraints. . This library provides a type class that is not really a constraint at all, so you can "start from zero" with building up a custom constraint. Also its opposite (a constraint that no type can ever fulfill). license: GPL-3 license-file: LICENSE author: Justus Sagemüller maintainer: sagemueller@geo.uni-koeln.de homepage: https://github.com/leftaroundabout/trivial-constraint -- copyright: category: Constraints build-type: Simple -- extra-source-files: cabal-version: >=1.10 library exposed-modules: Data.Constraint.Trivial -- other-modules: -- other-extensions: build-depends: base>=4.5 && <5 hs-source-dirs: src default-language: Haskell2010