Value Members

1.  final def !=(arg0: Any): Boolean

   Definition Classes

   AnyRef → Any

2.  final def ##: Int

   Definition Classes

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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]
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]]
17.  final def pOptionToDisjunction[A, B]: PIso[Option[A], Option[B], Either[Unit, A], Either[Unit, B]]
18.  final def pSome[A, B]: PPrism[Option[A], Option[B], A, B]
19.  final def some[A]: Prism[Option[A], A]
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

    See also

    This method is called non in Haskell Lens.