Packages

sealed class :+:[M, N] extends AnyRef

The coproduct (or free product) of monoids M and N. Conceptually this is an alternating list of M and N values, with the identity as the empty list, and composition as list concatenation that combines adjacent elements when possible.

Source
MonoidCoproduct.scala
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Instance Constructors

  1. new :+:(rep: Vector[\/[M, N]])

Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
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  2. final def ##: Int
    Definition Classes
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  3. final def ==(arg0: Any): Boolean
    Definition Classes
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  4. def appendLeft(m: M)(implicit M: Monoid[M], N: Monoid[N]): :+:[M, N]

    Append a value from the left monoid

  5. def appendRight(n: N)(implicit M: Monoid[M], N: Monoid[N]): :+:[M, N]

    Append a value from the right monoid

  6. final def asInstanceOf[T0]: T0
    Definition Classes
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  7. def both[A >: M, B >: N](implicit arg0: Monoid[A], arg1: Monoid[B]): (A, B)

    Project out both monoids individually

  8. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
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    Annotations
    @throws(classOf[java.lang.CloneNotSupportedException]) @native()
  9. final def eq(arg0: AnyRef): Boolean
    Definition Classes
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  10. def equals(arg0: AnyRef): Boolean
    Definition Classes
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  11. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
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    @throws(classOf[java.lang.Throwable])
  12. def fold[Z](f: (M) => Z, g: (N) => Z)(implicit arg0: Monoid[Z]): Z

    A homomorphism to a monoid Z (if f and g are homomorphisms).

  13. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
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    Annotations
    @native()
  14. def hashCode(): Int
    Definition Classes
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    Annotations
    @native()
  15. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  16. def left[A >: M](implicit arg0: Monoid[A]): A

    Project out the value in the left monoid

  17. final def ne(arg0: AnyRef): Boolean
    Definition Classes
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  18. final def notify(): Unit
    Definition Classes
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    Annotations
    @native()
  19. final def notifyAll(): Unit
    Definition Classes
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    @native()
  20. def prependLeft(m: M)(implicit M: Monoid[M], N: Monoid[N]): :+:[M, N]

    Prepend a value from the left monoid

  21. def prependRight(n: N)(implicit M: Monoid[M], N: Monoid[N]): :+:[M, N]

    Prepend a value from the right monoid

  22. def right[A >: N](implicit arg0: Monoid[A]): A

    Project out the value in the right monoid

  23. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
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  24. def toString(): String
    Definition Classes
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  25. def untangle[A >: M, B >: N](f: (B, A) => A, g: (A, B) => B)(implicit arg0: Monoid[A], arg1: Monoid[B]): (A, B)

    Take a value from the coproduct monoid where each monoid acts on the other, and untangle into a pair of values.

    Take a value from the coproduct monoid where each monoid acts on the other, and untangle into a pair of values. Before being folded into the answer an N value is combined with the sum of the M values to its left via g and an M value is combined with the sum of the N values to its left via f. This allows you to add up N values while having the opportunity to "track" an evolving M value, and vice versa.

  26. def untangleLeft[A >: M, B >: N](f: (A, B) => B)(implicit arg0: Monoid[A], arg1: Monoid[B]): (A, B)

    Like untangle, except M values are simply combined without regard to the N values to the left of it.

  27. def untangleRight[A >: M, B >: N](f: (B, A) => A)(implicit arg0: Monoid[A], arg1: Monoid[B]): (A, B)

    Like untangle, except N values are simply combined without regard to the N values to the left of it.

  28. final def wait(): Unit
    Definition Classes
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    Annotations
    @throws(classOf[java.lang.InterruptedException])
  29. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
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    @throws(classOf[java.lang.InterruptedException])
  30. final def wait(arg0: Long): Unit
    Definition Classes
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    @throws(classOf[java.lang.InterruptedException]) @native()
  31. def |+|(m: :+:[M, N])(implicit M: Monoid[M], N: Monoid[N]): :+:[M, N]

    The associative operation of the monoid coproduct

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