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object Tag

Source
Tag.scala
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Type Members

  1. final class TagOf[T] extends ~>[Id.Id, [α$0$]TagModule.@@[α$0$, T]]

    See also

    Tag.of

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
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  4. def apply[A, T](a: A): @@[A, T]

    subst specialized to Id.

    subst specialized to Id.

    Annotations
    @inline()
    To do

    According to Miles, @specialized doesn't help here. Maybe manually specialize.

  5. final def asInstanceOf[T0]: T0
    Definition Classes
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  6. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
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    @throws( ... ) @native()
  7. final def eq(arg0: AnyRef): Boolean
    Definition Classes
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  8. def equals(arg0: Any): Boolean
    Definition Classes
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  9. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
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    Annotations
    @throws( classOf[java.lang.Throwable] )
  10. final def getClass(): Class[_]
    Definition Classes
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    Annotations
    @native()
  11. def hashCode(): Int
    Definition Classes
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    Annotations
    @native()
  12. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  13. final def ne(arg0: AnyRef): Boolean
    Definition Classes
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  14. final def notify(): Unit
    Definition Classes
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    Annotations
    @native()
  15. final def notifyAll(): Unit
    Definition Classes
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    Annotations
    @native()
  16. def of[T]: TagOf[T]

    Variants of apply, subst, and unsubst that require specifying the tag type but are more likely to infer the other type parameters.

  17. def subst[A, F[_], T](fa: F[A]): F[@@[A, T]]

    Add a tag T to A.

    Add a tag T to A.

    NB: It is unsafe to subst or unsubst a tag in an F that is sensitive to the A type within. For example, if F is a GADT, rather than a normal ADT, it is probably unsafe. For "normal" types like List and function types, it is safe. More broadly, if it is possible to write a legal scalaz.InvariantFunctor over the parameter, subst of that parameter is safe.

    We do not have a type role system in Scala with which to declare the exact situations under which subst is safe. If we did, we would declare that subst is safe if and only if the parameter has "representational" or "phantom" role.

  18. def subst1[G[_], F[_[_]], T](fa: F[G]): F[[α]TagModule.@@[G[α], T]]

    Add a tag T to G[_]

  19. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
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  20. def toString(): String
    Definition Classes
    AnyRef → Any
  21. def unsubst[A, F[_], T](fa: F[@@[A, T]]): F[A]

    Remove the tag T, leaving A.

  22. def unsubst1[G[_], F[_[_]], T](fa: F[[α]TagModule.@@[G[α], T]]): F[G]

    Remove the tag T, leaving G

    Remove the tag T, leaving G

    Annotations
    @inline()
  23. def unwrap[A, T](a: @@[A, T]): A

    unsubst specialized to Id.

    unsubst specialized to Id.

    Annotations
    @inline()
  24. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  25. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  26. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
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    @throws( ... ) @native()

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