scalaz

IsEmpty

trait IsEmpty[F[_]] extends PlusEmpty[F]

Typeclass that permits testing whether some type with an empty representation is in fact empty.

Self Type
IsEmpty[F]
Source
IsEmpty.scala
Linear Supertypes
PlusEmpty[F], Plus[F], AnyRef, Any
Known Subclasses
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Inherited
  1. IsEmpty
  2. PlusEmpty
  3. Plus
  4. AnyRef
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Type Members

  1. trait EmptyLaw extends PlusLaw

    Definition Classes
    PlusEmpty
  2. trait IsEmptyLaw extends EmptyLaw

  3. trait PlusLaw extends AnyRef

    Definition Classes
    Plus

Abstract Value Members

  1. abstract def empty[A]: F[A]

    Definition Classes
    PlusEmpty
  2. abstract def isEmpty[A](fa: F[A]): Boolean

  3. abstract def plus[A](a: F[A], b: ⇒ F[A]): F[A]

    Definition Classes
    Plus

Concrete Value Members

  1. final def !=(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any
  2. final def ##(): Int

    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any
  4. final def asInstanceOf[T0]: T0

    Definition Classes
    Any
  5. def clone(): AnyRef

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  6. def compose[G[_]](implicit G0: PlusEmpty[G]): PlusEmpty[[α]F[G[α]]]

    The composition of PlusEmpty F and G, [x]F[G[x]], is a PlusEmpty

    The composition of PlusEmpty F and G, [x]F[G[x]], is a PlusEmpty

    Definition Classes
    PlusEmpty
  7. def compose[G[_]](implicit G0: Plus[G]): Plus[[α]F[G[α]]]

    The composition of Plus F and G, [x]F[G[x]], is a Plus

    The composition of Plus F and G, [x]F[G[x]], is a Plus

    Definition Classes
    Plus
  8. final def eq(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  9. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any
  10. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  11. final def getClass(): Class[_]

    Definition Classes
    AnyRef → Any
  12. def hashCode(): Int

    Definition Classes
    AnyRef → Any
  13. def isEmptyLaw: IsEmptyLaw

  14. val isEmptySyntax: IsEmptySyntax[F]

  15. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any
  16. def monoid[A]: Monoid[F[A]]

    Definition Classes
    PlusEmpty
  17. final def ne(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  18. final def notify(): Unit

    Definition Classes
    AnyRef
  19. final def notifyAll(): Unit

    Definition Classes
    AnyRef
  20. def plusEmptyLaw: EmptyLaw

    Definition Classes
    PlusEmpty
  21. val plusEmptySyntax: PlusEmptySyntax[F]

    Definition Classes
    PlusEmpty
  22. def plusLaw: PlusLaw

    Definition Classes
    Plus
  23. val plusSyntax: PlusSyntax[F]

    Definition Classes
    Plus
  24. def product[G[_]](implicit G0: PlusEmpty[G]): PlusEmpty[[α](F[α], G[α])]

    The product of PlusEmpty F and G, [x](F[x], G[x]]), is a PlusEmpty

    The product of PlusEmpty F and G, [x](F[x], G[x]]), is a PlusEmpty

    Definition Classes
    PlusEmpty
  25. def product[G[_]](implicit G0: Plus[G]): Plus[[α](F[α], G[α])]

    The product of Plus F and G, [x](F[x], G[x]]), is a Plus

    The product of Plus F and G, [x](F[x], G[x]]), is a Plus

    Definition Classes
    Plus
  26. def semigroup[A]: Semigroup[F[A]]

    Definition Classes
    Plus
  27. final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes
    AnyRef
  28. def toString(): String

    Definition Classes
    AnyRef → Any
  29. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  30. final def wait(arg0: Long, arg1: Int): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  31. final def wait(arg0: Long): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Inherited from PlusEmpty[F]

Inherited from Plus[F]

Inherited from AnyRef

Inherited from Any

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