haskell-tools-builtin-refactorings-1.0.1.1: test/ExtensionOrganizerTest/TypeFamiliesTest/TypeEquality.hs

{-# LANGUAGE TypeFamilies, ConstraintKinds #-}

module TypeEquality where

{-@ GADTs, ConstraintKinds @-}

type DoubleEq a b c = (a ~ b, b ~ c) {-* TypeFamilies + GADTs, TypeFamilies + GADTs, TypeFamilies + GADTs, ConstraintKinds *-}