Class/Object

scalaz

Reducer

Related Docs: object Reducer | package scalaz

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sealed abstract class Reducer[C, M] extends AnyRef

A Reducer[C,M] is a scalaz.Monoid[M] that maps values of type C through unit to values of type M. A C-Reducer may also supply operations which tack on another C to an existing Monoid M on the left or right. These specialized reductions may be more efficient in some scenarios and are used when appropriate by a scalaz.Generator. The names cons and snoc work by analogy to the synonymous operations in the list monoid.

Minimal definition: unit or snoc

Based on a Haskell library by Edward Kmett

Source
Reducer.scala
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Abstract Value Members

  1. abstract def cons(c: C, m: M): M

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    Faster append(unit(c), m).

  2. implicit abstract def monoid: Monoid[M]

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  3. abstract def snoc(m: M, c: C): M

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    Faster append(m, unit(c)).

  4. abstract def unit(c: C): M

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Concrete Value Members

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

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  2. final def ##(): Int

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

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  4. def append(a1: M, a2: ⇒ M): M

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  5. final def asInstanceOf[T0]: T0

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  6. def clone(): AnyRef

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  7. def compose[N](r: Reducer[C, N]): Reducer[C, (M, N)]

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    Distribute Cs to M and N.

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

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  9. def equals(arg0: Any): Boolean

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  10. def finalize(): Unit

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

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  12. def hashCode(): Int

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  13. final def isInstanceOf[T0]: Boolean

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

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  15. final def notify(): Unit

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  16. final def notifyAll(): Unit

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

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  18. def toString(): String

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  19. final def wait(): Unit

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

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

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  22. def zero: M

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