{-# LANGUAGE GeneralizedNewtypeDeriving, StandaloneDeriving #-} {-# OPTIONS_GHC -fno-warn-orphans #-} {-| Module: Instances.Data.Semigroup Copyright: (C) 2014-2015 Ryan Scott License: BSD-style (see the file LICENSE) Maintainer: Ryan Scott Stability: Experimental Portability: GHC Provides 'Arbitrary' instances for @Semigroup@ data types. -} module Instances.Data.Semigroup () where import Data.Semigroup (Min(..), Max(..), First(..), Last(..), WrappedMonoid(..), Option(..)) import Test.Tasty.QuickCheck (Arbitrary) deriving instance Arbitrary a => Arbitrary (Min a) deriving instance Arbitrary a => Arbitrary (Max a) deriving instance Arbitrary a => Arbitrary (First a) deriving instance Arbitrary a => Arbitrary (Last a) deriving instance Arbitrary m => Arbitrary (WrappedMonoid m) deriving instance Arbitrary a => Arbitrary (Option a)