Class/Object

scalaz.UnapplyProduct

SingletonOf

Related Docs: object SingletonOf | package UnapplyProduct

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case class SingletonOf[T, U <: AnyRef { ... /* 2 definitions in type refinement */ }](widen: T { ... /* 2 definitions in type refinement */ }) extends Product with Serializable

This is a workaround that allows us to approximate multiple implicit parameter sections (which Scala does not currently support). See this gist by Miles Sabin for the original context:

https://gist.github.com/milessabin/cadd73b7756fe4097ca0

The key idea is that we can use an intermediate type to capture the type members of the two Unapply instances in such a way that we can refer to them in the implicit parameter list.

Source
Unapply.scala
Linear Supertypes
Serializable, Serializable, Product, Equals, AnyRef, Any
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Inherited
  1. SingletonOf
  2. Serializable
  3. Serializable
  4. Product
  5. Equals
  6. AnyRef
  7. Any
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Visibility
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Instance Constructors

  1. new SingletonOf(widen: T { ... /* 2 definitions in type refinement */ })

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Value Members

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

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    Definition Classes
    AnyRef → Any

  2. final def ##(): Int

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    Definition Classes
    AnyRef → Any

  3. final def ==(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any

  4. final def asInstanceOf[T0]: T0

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    Definition Classes
    Any

  5. def clone(): AnyRef

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  6. final def eq(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef

  7. def finalize(): Unit

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )

  8. final def getClass(): Class[_]

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    Definition Classes
    AnyRef → Any

  9. final def isInstanceOf[T0]: Boolean

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    Definition Classes
    Any

  10. final def ne(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef

  11. final def notify(): Unit

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    Definition Classes
    AnyRef

  12. final def notifyAll(): Unit

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    Definition Classes
    AnyRef

  13. final def synchronized[T0](arg0: ⇒ T0): T0

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    Definition Classes
    AnyRef

  14. final def wait(): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  15. final def wait(arg0: Long, arg1: Int): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  16. final def wait(arg0: Long): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  17. val widen: T { ... /* 2 definitions in type refinement */ }

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Inherited from Serializable

Inherited from Serializable

Inherited from Product

Inherited from Equals

Inherited from AnyRef

Inherited from Any

Ungrouped