Pek Instances

提供一些自己常用的第三方库的实例对象

cats-instances

提供Scala函数式编程库cats的第三方库实例对象

cats-instances/scalacheck

提供scalacheck的cats实例。参考：davenverse/cats-scalacheck

Gen Instances

• Monad[Gen]
• Alternative[Gen]
• FunctorFilter[Gen]
• Monoid[A] ?=> Monoid[Gen[A]]
• Semigroup[A] ?=> Semigroup[Gen[A]]

Cogen Instances

• ContravariantSemigroupal[Cogen]
• MonoidK[Cogen]

Arbitrary Instances

• Monad[Arbitrary]
• Alternative[Arbitrary]
• FunctorFilter[Arbitrary]
• Monoid[A] ?=> Monoid[Arbitrary[A]]
• Semigroup[A] ?=> Semigroup[Arbitrary[A]]

Collection

NonEmptyList

• Arbitrary[A] ?=> Arbitrary[NonEmptyList[A]]