object option extends OptionOptics

Source
Option.scala
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  1. option
  2. OptionOptics
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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[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.CloneNotSupportedException]) @native()
  6. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  7. def equals(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef → Any
  8. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.Throwable])
  9. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  10. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  11. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  12. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  13. final def none[A]: Prism[Option[A], Unit]
    Definition Classes
    OptionOptics
  14. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  15. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  16. final def optionToDisjunction[A]: Iso[Option[A], Either[Unit, A]]
    Definition Classes
    OptionOptics
  17. final def pOptionToDisjunction[A, B]: PIso[Option[A], Option[B], Either[Unit, A], Either[Unit, B]]
    Definition Classes
    OptionOptics
  18. final def pSome[A, B]: PPrism[Option[A], Option[B], A, B]
    Definition Classes
    OptionOptics
  19. final def some[A]: Prism[Option[A], A]
    Definition Classes
    OptionOptics
  20. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  21. def toString(): String
    Definition Classes
    AnyRef → Any
  22. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  23. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  24. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()
  25. final def withDefault[A](defaultValue: A): Iso[Option[A], A]

    Creates an Iso that maps None to defaultValue and inversely.

    Creates an Iso that maps None to defaultValue and inversely.

    val defaultTo0 = withDefault(0)
    defaultTo0.get(None) == 0
    defaultTo0.get(Some(1)) == 1
    defaultTo0.reverseGet(0) == None
    defaultTo0.reverseGet(1) == Some(1)

    withDefault is a valid Iso only if we consider the set of A without defaultValue. For example, Some(0) breaks the round-trip property of Iso:

    defaultTo0.reverseGet(defaultTo0.get(Some(0))) == None
    Definition Classes
    OptionOptics
    See also

    This method is called non in Haskell Lens.

Inherited from OptionOptics

Inherited from AnyRef

Inherited from Any

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