Packages

trait Traverse[F[_]] extends Functor[F] with Foldable[F] with TraverseParent[F]

Idiomatic traversal of a structure, as described in The Essence of the Iterator Pattern.

Self Type
Traverse[F]
Source
Traverse.scala
See also

scalaz.Traverse.TraverseLaw

Linear Supertypes
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Inherited
  1. Traverse
  2. TraverseParent
  3. Foldable
  4. FoldableParent
  5. Functor
  6. InvariantFunctor
  7. AnyRef
  8. Any
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Type Members

  1. trait FoldableLaw extends AnyRef
    Definition Classes
    Foldable
  2. trait FunctorLaw extends InvariantFunctorLaw
    Definition Classes
    Functor
  3. trait InvariantFunctorLaw extends AnyRef
    Definition Classes
    InvariantFunctor
  4. class Traversal[G[_]] extends AnyRef
  5. trait TraverseLaw extends FunctorLaw

Abstract Value Members

  1. abstract def traverseImpl[G[_], A, B](fa: F[A])(f: (A) ⇒ G[B])(implicit arg0: Applicative[G]): G[F[B]]

    Transform fa using f, collecting all the Gs with ap.

Concrete Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. def all[A](fa: F[A])(p: (A) ⇒ Boolean): Boolean

    Whether all As in fa yield true from p.

    Whether all As in fa yield true from p.

    Definition Classes
    Foldable
  5. def allM[G[_], A](fa: F[A])(p: (A) ⇒ G[Boolean])(implicit G: Monad[G]): G[Boolean]

    all with monadic traversal.

    all with monadic traversal.

    Definition Classes
    Foldable
  6. def any[A](fa: F[A])(p: (A) ⇒ Boolean): Boolean

    Whether any As in fa yield true from p.

    Whether any As in fa yield true from p.

    Definition Classes
    Foldable
  7. def anyM[G[_], A](fa: F[A])(p: (A) ⇒ G[Boolean])(implicit G: Monad[G]): G[Boolean]

    any with monadic traversal.

    any with monadic traversal.

    Definition Classes
    Foldable
  8. def apply[A, B](fa: F[A])(f: (A) ⇒ B): F[B]

    Alias for map.

    Alias for map.

    Definition Classes
    Functor
  9. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  10. def bicompose[G[_, _]](implicit arg0: Bitraverse[G]): Bitraverse[[α, β]F[G[α, β]]]

    The composition of Traverse F and Bitraverse G, [x, y]F[G[x, y]], is a Bitraverse

  11. def bicompose[G[_, _]](implicit arg0: Bifoldable[G]): Bifoldable[[α, β]F[G[α, β]]]

    The composition of Foldable F and Bifoldable G, [x, y]F[G[x, y]], is a Bifoldable

    The composition of Foldable F and Bifoldable G, [x, y]F[G[x, y]], is a Bifoldable

    Definition Classes
    Foldable
  12. def bicompose[G[_, _]](implicit arg0: Bifunctor[G]): Bifunctor[[α, β]F[G[α, β]]]

    The composition of Functor F and Bifunctor G, [x, y]F[G[x, y]], is a Bifunctor

    The composition of Functor F and Bifunctor G, [x, y]F[G[x, y]], is a Bifunctor

    Definition Classes
    Functor
  13. def clone(): AnyRef
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @native() @throws( ... )
  14. def collapse[X[_], A](x: F[A])(implicit A: ApplicativePlus[X]): X[A]
    Definition Classes
    Foldable
  15. def compose[G[_]](implicit G0: Traverse[G]): Traverse[[α]F[G[α]]]

    The composition of Traverses F and G, [x]F[G[x]], is a Traverse

  16. def compose[G[_]](implicit G0: Foldable[G]): Foldable[[α]F[G[α]]]

    The composition of Foldables F and G, [x]F[G[x]], is a Foldable

    The composition of Foldables F and G, [x]F[G[x]], is a Foldable

    Definition Classes
    Foldable
  17. def compose[G[_]](implicit G0: Functor[G]): Functor[[α]F[G[α]]]

    The composition of Functors F and G, [x]F[G[x]], is a Functor

    The composition of Functors F and G, [x]F[G[x]], is a Functor

    Definition Classes
    Functor
  18. final def count[A](fa: F[A]): Int

    Alias for length.

    Alias for length.

    Definition Classes
    Foldable
  19. def counzip[A, B](a: \/[F[A], F[B]]): F[\/[A, B]]
    Definition Classes
    Functor
  20. def distinct[A](fa: F[A])(implicit A: Order[A]): IList[A]

    O(n log n) complexity

    O(n log n) complexity

    Definition Classes
    Foldable
  21. def distinctBy[A, B](fa: F[A])(f: (A) ⇒ B)(implicit arg0: Equal[B]): IList[A]
    Definition Classes
    FoldableParent
  22. def distinctE[A](fa: F[A])(implicit A: Equal[A]): IList[A]

    O(n2) complexity

    O(n2) complexity

    Definition Classes
    Foldable
  23. def element[A](fa: F[A], a: A)(implicit arg0: Equal[A]): Boolean

    Whether a is an element of fa.

    Whether a is an element of fa.

    Definition Classes
    Foldable
  24. def empty[A](fa: F[A]): Boolean

    Deforested alias for toStream(fa).isEmpty.

    Deforested alias for toStream(fa).isEmpty.

    Definition Classes
    Foldable
  25. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  26. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  27. def extrema[A](fa: F[A])(implicit arg0: Order[A]): Option[(A, A)]

    The smallest and largest elements of fa or None if fa is empty

    The smallest and largest elements of fa or None if fa is empty

    Definition Classes
    FoldableParent
  28. def extremaBy[A, B](fa: F[A])(f: (A) ⇒ B)(implicit arg0: Order[B]): Option[(A, A)]

    The elements (amin, amax) of fa which yield the smallest and largest values of f(a), respectively, or None if fa is empty

    The elements (amin, amax) of fa which yield the smallest and largest values of f(a), respectively, or None if fa is empty

    Definition Classes
    FoldableParent
  29. def extremaOf[A, B](fa: F[A])(f: (A) ⇒ B)(implicit arg0: Order[B]): Option[(B, B)]

    The smallest and largest values of f(a) for each element a of fa , or None if fa is empty

    The smallest and largest values of f(a) for each element a of fa , or None if fa is empty

    Definition Classes
    FoldableParent
  30. def filterLength[A](fa: F[A])(f: (A) ⇒ Boolean): Int
    Definition Classes
    FoldableParent
  31. def finalize(): Unit
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  32. def findLeft[A](fa: F[A])(f: (A) ⇒ Boolean): Option[A]
    Definition Classes
    Foldable
  33. final def findMapM[M[_], A, B](fa: F[A])(f: (A) ⇒ M[Option[B]])(implicit arg0: Monad[M]): M[Option[B]]

    map elements in a Foldable with a monadic function and return the first element that is mapped successfully

    map elements in a Foldable with a monadic function and return the first element that is mapped successfully

    Definition Classes
    Foldable
  34. def findRight[A](fa: F[A])(f: (A) ⇒ Boolean): Option[A]
    Definition Classes
    Foldable
  35. def fold[M](t: F[M])(implicit arg0: Monoid[M]): M

    Combine the elements of a structure using a monoid.

    Combine the elements of a structure using a monoid.

    Definition Classes
    Foldable
  36. def fold1Opt[A](fa: F[A])(implicit arg0: Semigroup[A]): Option[A]

    Like fold but returning None if the foldable is empty and Some otherwise

    Like fold but returning None if the foldable is empty and Some otherwise

    Definition Classes
    FoldableParent
  37. def foldLShape[A, B](fa: F[A], z: B)(f: (B, A) ⇒ B): (B, F[Unit])
  38. def foldLeft[A, B](fa: F[A], z: B)(f: (B, A) ⇒ B): B

    Left-associative fold of a structure.

    Left-associative fold of a structure.

    Definition Classes
    TraverseFoldable
  39. def foldLeft1Opt[A](fa: F[A])(f: (A, A) ⇒ A): Option[A]
    Definition Classes
    Foldable
  40. def foldLeftM[G[_], A, B](fa: F[A], z: B)(f: (B, A) ⇒ G[B])(implicit M: Monad[G]): G[B]

    Left-associative, monadic fold of a structure.

    Left-associative, monadic fold of a structure.

    Definition Classes
    Foldable
  41. def foldMap[A, B](fa: F[A])(f: (A) ⇒ B)(implicit F: Monoid[B]): B

    Map each element of the structure to a scalaz.Monoid, and combine the results.

    Map each element of the structure to a scalaz.Monoid, and combine the results.

    Definition Classes
    TraverseFoldable
  42. def foldMap1Opt[A, B](fa: F[A])(f: (A) ⇒ B)(implicit F: Semigroup[B]): Option[B]

    As foldMap but returning None if the foldable is empty and Some otherwise

    As foldMap but returning None if the foldable is empty and Some otherwise

    Definition Classes
    Foldable
  43. def foldMapLeft1Opt[A, B](fa: F[A])(z: (A) ⇒ B)(f: (B, A) ⇒ B): Option[B]
    Definition Classes
    Foldable
  44. def foldMapM[G[_], A, B](fa: F[A])(f: (A) ⇒ G[B])(implicit B: Monoid[B], G: Monad[G]): G[B]

    Specialization of foldRightM when B has a Monoid.

    Specialization of foldRightM when B has a Monoid.

    Definition Classes
    Foldable
  45. def foldMapRight1Opt[A, B](fa: F[A])(z: (A) ⇒ B)(f: (A, ⇒ B) ⇒ B): Option[B]
    Definition Classes
    Foldable
  46. def foldRight[A, B](fa: F[A], z: ⇒ B)(f: (A, ⇒ B) ⇒ B): B

    Right-associative fold of a structure.

    Right-associative fold of a structure.

    Definition Classes
    TraverseFoldable
  47. def foldRight1Opt[A](fa: F[A])(f: (A, ⇒ A) ⇒ A): Option[A]
    Definition Classes
    Foldable
  48. def foldRightM[G[_], A, B](fa: F[A], z: ⇒ B)(f: (A, ⇒ B) ⇒ G[B])(implicit M: Monad[G]): G[B]

    Right-associative, monadic fold of a structure.

    Right-associative, monadic fold of a structure.

    Definition Classes
    Foldable
  49. def foldableLaw: FoldableLaw
    Definition Classes
    Foldable
  50. val foldableSyntax: FoldableSyntax[F]
    Definition Classes
    Foldable
  51. final def foldl[A, B](fa: F[A], z: B)(f: (B) ⇒ (A) ⇒ B): B

    Curried version of foldLeft

    Curried version of foldLeft

    Definition Classes
    Foldable
  52. def foldl1Opt[A](fa: F[A])(f: (A) ⇒ (A) ⇒ A): Option[A]
    Definition Classes
    Foldable
  53. final def foldlM[G[_], A, B](fa: F[A], z: ⇒ B)(f: (B) ⇒ (A) ⇒ G[B])(implicit M: Monad[G]): G[B]

    Curried version of foldLeftM

    Curried version of foldLeftM

    Definition Classes
    Foldable
  54. final def foldr[A, B](fa: F[A], z: ⇒ B)(f: (A) ⇒ (⇒ B) ⇒ B): B

    Curried version of foldRight

    Curried version of foldRight

    Definition Classes
    Foldable
  55. def foldr1Opt[A](fa: F[A])(f: (A) ⇒ (⇒ A) ⇒ A): Option[A]
    Definition Classes
    Foldable
  56. final def foldrM[G[_], A, B](fa: F[A], z: ⇒ B)(f: (A) ⇒ (⇒ B) ⇒ G[B])(implicit M: Monad[G]): G[B]

    Curried version of foldRightM

    Curried version of foldRightM

    Definition Classes
    Foldable
  57. def fpair[A](fa: F[A]): F[(A, A)]

    Twin all As in fa.

    Twin all As in fa.

    Definition Classes
    Functor
  58. def fproduct[A, B](fa: F[A])(f: (A) ⇒ B): F[(A, B)]

    Pair all As in fa with the result of function application.

    Pair all As in fa with the result of function application.

    Definition Classes
    Functor
  59. def functorLaw: FunctorLaw
    Definition Classes
    Functor
  60. val functorSyntax: FunctorSyntax[F]
    Definition Classes
    Functor
  61. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  62. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  63. def icompose[G[_]](implicit G0: Contravariant[G]): Contravariant[[α]F[G[α]]]

    The composition of Functor F and Contravariant G, [x]F[G[x]], is contravariant.

    The composition of Functor F and Contravariant G, [x]F[G[x]], is contravariant.

    Definition Classes
    Functor
  64. def index[A](fa: F[A], i: Int): Option[A]

    returns

    the element at index i in a Some, or None if the given index falls outside of the range

    Definition Classes
    Foldable
  65. def indexOr[A](fa: F[A], default: ⇒ A, i: Int): A

    returns

    the element at index i, or default if the given index falls outside of the range

    Definition Classes
    Foldable
  66. def indexed[A](fa: F[A]): F[(Int, A)]
  67. def intercalate[A](fa: F[A], a: A)(implicit A: Monoid[A]): A

    Insert an A between every A, yielding the sum.

    Insert an A between every A, yielding the sum.

    Definition Classes
    Foldable
  68. def invariantFunctorLaw: InvariantFunctorLaw
    Definition Classes
    InvariantFunctor
  69. val invariantFunctorSyntax: InvariantFunctorSyntax[F]
    Definition Classes
    InvariantFunctor
  70. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  71. def length[A](fa: F[A]): Int

    Deforested alias for toStream(fa).size.

    Deforested alias for toStream(fa).size.

    Definition Classes
    Foldable
  72. def lift[A, B](f: (A) ⇒ B): (F[A]) ⇒ F[B]

    Lift f into F.

    Lift f into F.

    Definition Classes
    Functor
  73. def longDigits[A](fa: F[A])(implicit d: <:<[A, Digit]): Long
    Definition Classes
    Foldable
  74. def map[A, B](fa: F[A])(f: (A) ⇒ B): F[B]

    Lift f into F and apply to F[A].

    Lift f into F and apply to F[A].

    Definition Classes
    TraverseFunctor
  75. def mapAccumL[S, A, B](fa: F[A], z: S)(f: (S, A) ⇒ (S, B)): (S, F[B])
  76. def mapAccumR[S, A, B](fa: F[A], z: S)(f: (S, A) ⇒ (S, B)): (S, F[B])
  77. def mapply[A, B](a: A)(f: F[(A) ⇒ B]): F[B]

    Lift apply(a), and apply the result to f.

    Lift apply(a), and apply the result to f.

    Definition Classes
    Functor
  78. def maximum[A](fa: F[A])(implicit arg0: Order[A]): Option[A]

    The greatest element of fa, or None if fa is empty.

    The greatest element of fa, or None if fa is empty.

    Definition Classes
    Foldable
  79. def maximumBy[A, B](fa: F[A])(f: (A) ⇒ B)(implicit arg0: Order[B]): Option[A]

    The element a of fa which yields the greatest value of f(a), or None if fa is empty.

    The element a of fa which yields the greatest value of f(a), or None if fa is empty.

    Definition Classes
    Foldable
  80. def maximumOf[A, B](fa: F[A])(f: (A) ⇒ B)(implicit arg0: Order[B]): Option[B]

    The greatest value of f(a) for each element a of fa, or None if fa is empty.

    The greatest value of f(a) for each element a of fa, or None if fa is empty.

    Definition Classes
    Foldable
  81. def minimum[A](fa: F[A])(implicit arg0: Order[A]): Option[A]

    The smallest element of fa, or None if fa is empty.

    The smallest element of fa, or None if fa is empty.

    Definition Classes
    Foldable
  82. def minimumBy[A, B](fa: F[A])(f: (A) ⇒ B)(implicit arg0: Order[B]): Option[A]

    The element a of fa which yields the smallest value of f(a), or None if fa is empty.

    The element a of fa which yields the smallest value of f(a), or None if fa is empty.

    Definition Classes
    Foldable
  83. def minimumOf[A, B](fa: F[A])(f: (A) ⇒ B)(implicit arg0: Order[B]): Option[B]

    The smallest value of f(a) for each element a of fa, or None if fa is empty.

    The smallest value of f(a) for each element a of fa, or None if fa is empty.

    Definition Classes
    Foldable
  84. def msuml[G[_], A](fa: F[G[A]])(implicit G: PlusEmpty[G]): G[A]
    Definition Classes
    Foldable
  85. def msumlU[GA](fa: F[GA])(implicit G: Unapply[PlusEmpty, GA]): M[A]
    Definition Classes
    FoldableParent
  86. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  87. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  88. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  89. def product[G[_]](implicit G0: Traverse[G]): Traverse[[α](F[α], G[α])]

    The product of Traverses F and G, [x](F[x], G[x]]), is a Traverse

  90. def product[G[_]](implicit G0: Foldable[G]): Foldable[[α](F[α], G[α])]

    The product of Foldables F and G, [x](F[x], G[x]]), is a Foldable

    The product of Foldables F and G, [x](F[x], G[x]]), is a Foldable

    Definition Classes
    Foldable
  91. def product[G[_]](implicit G0: Functor[G]): Functor[[α](F[α], G[α])]

    The product of Functors F and G, [x](F[x], G[x]]), is a Functor

    The product of Functors F and G, [x](F[x], G[x]]), is a Functor

    Definition Classes
    Functor
  92. def product0[G[_]](implicit G0: Traverse1[G]): Traverse1[[α](F[α], G[α])]

    The product of Traverse F and Traverse1 G, [x](F[x], G[x]]), is a Traverse1

  93. def product0[G[_]](implicit G0: Foldable1[G]): Foldable1[[α](F[α], G[α])]

    The product of Foldable F and Foldable1 G, [x](F[x], G[x]]), is a Foldable1

    The product of Foldable F and Foldable1 G, [x](F[x], G[x]]), is a Foldable1

    Definition Classes
    Foldable
  94. def reverse[A](fa: F[A]): F[A]
  95. def runTraverseS[S, A, B](fa: F[A], s: S)(f: (A) ⇒ State[S, B]): (S, F[B])
  96. def selectSplit[A](fa: F[A])(p: (A) ⇒ Boolean): List[NonEmptyList[A]]

    Selects groups of elements that satisfy p and discards others.

    Selects groups of elements that satisfy p and discards others.

    Definition Classes
    Foldable
  97. def sequence[G[_], A](fga: F[G[A]])(implicit arg0: Applicative[G]): G[F[A]]

    Traverse with the identity function.

  98. def sequenceF_[M[_], A](ffa: F[Free[M, A]]): Free[M, Unit]

    sequence_ for Free.

    sequence_ for Free. collapses into a single Free *

    Definition Classes
    Foldable
  99. def sequenceM[A, G[_]](fgfa: F[G[F[A]]])(implicit G: Applicative[G], F: Bind[F]): G[F[A]]

    A version of sequence where a subsequent monadic join is applied to the inner result

    A version of sequence where a subsequent monadic join is applied to the inner result

    Definition Classes
    TraverseParent
  100. def sequenceS[S, A](fga: F[State[S, A]]): State[S, F[A]]

    Traverse with State.

  101. def sequenceS_[S, A](fga: F[State[S, A]]): State[S, Unit]

    sequence_ specialized to State *

    sequence_ specialized to State *

    Definition Classes
    Foldable
  102. final def sequenceU[A](self: F[A])(implicit G: Unapply[Applicative, A]): M[F[A]]

    A version of sequence that infers the nested type constructor.

  103. def sequence_[M[_], A](fa: F[M[A]])(implicit a: Applicative[M]): M[Unit]

    Strict sequencing in an applicative functor M that ignores the value in fa.

    Strict sequencing in an applicative functor M that ignores the value in fa.

    Definition Classes
    Foldable
  104. def splitBy[A, B](fa: F[A])(f: (A) ⇒ B)(implicit arg0: Equal[B]): IList[(B, NonEmptyList[A])]

    Splits the elements into groups that produce the same result by a function f.

    Splits the elements into groups that produce the same result by a function f.

    Definition Classes
    FoldableParent
  105. def splitByRelation[A](fa: F[A])(r: (A, A) ⇒ Boolean): IList[NonEmptyList[A]]

    Splits into groups of elements that are transitively dependant by a relation r.

    Splits into groups of elements that are transitively dependant by a relation r.

    Definition Classes
    FoldableParent
  106. def splitWith[A](fa: F[A])(p: (A) ⇒ Boolean): List[NonEmptyList[A]]

    Splits the elements into groups that alternatively satisfy and don't satisfy the predicate p.

    Splits the elements into groups that alternatively satisfy and don't satisfy the predicate p.

    Definition Classes
    Foldable
  107. def strengthL[A, B](a: A, f: F[B]): F[(A, B)]

    Inject a to the left of Bs in f.

    Inject a to the left of Bs in f.

    Definition Classes
    Functor
  108. def strengthR[A, B](f: F[A], b: B): F[(A, B)]

    Inject b to the right of As in f.

    Inject b to the right of As in f.

    Definition Classes
    Functor
  109. def suml[A](fa: F[A])(implicit A: Monoid[A]): A
    Definition Classes
    Foldable
  110. def suml1Opt[A](fa: F[A])(implicit A: Semigroup[A]): Option[A]
    Definition Classes
    Foldable
  111. def sumr[A](fa: F[A])(implicit A: Monoid[A]): A
    Definition Classes
    Foldable
  112. def sumr1Opt[A](fa: F[A])(implicit A: Semigroup[A]): Option[A]
    Definition Classes
    Foldable
  113. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  114. def toEphemeralStream[A](fa: F[A]): EphemeralStream[A]
    Definition Classes
    Foldable
  115. def toIList[A](fa: F[A]): IList[A]
    Definition Classes
    Foldable
  116. def toList[A](fa: F[A]): List[A]
    Definition Classes
    Foldable
  117. def toSet[A](fa: F[A]): Set[A]
    Definition Classes
    Foldable
  118. def toStream[A](fa: F[A]): Stream[A]
    Definition Classes
    Foldable
  119. def toString(): String
    Definition Classes
    AnyRef → Any
  120. def toVector[A](fa: F[A]): Vector[A]
    Definition Classes
    Foldable
  121. def traversal[G[_]](implicit arg0: Applicative[G]): Traversal[G]
  122. def traversalS[S]: Traversal[[β$0$]IndexedStateT[[X]X, S, S, β$0$]]
  123. def traverse[G[_], A, B](fa: F[A])(f: (A) ⇒ G[B])(implicit arg0: Applicative[G]): G[F[B]]
  124. def traverseKTrampoline[S, G[_], A, B](fa: F[A])(f: (A) ⇒ Kleisli[G, S, B])(implicit arg0: Applicative[G]): Kleisli[G, S, F[B]]

    Traverse fa with a Kleisli[G, S, B], internally using a Trampoline to avoid stack overflow.

  125. def traverseLaw: TraverseLaw
  126. final def traverseM[A, G[_], B](fa: F[A])(f: (A) ⇒ G[F[B]])(implicit G: Applicative[G], F: Bind[F]): G[F[B]]

    A version of traverse where a subsequent monadic join is applied to the inner result.

  127. def traverseS[S, A, B](fa: F[A])(f: (A) ⇒ State[S, B]): State[S, F[B]]

    Traverse with State.

  128. def traverseSTrampoline[S, G[_], A, B](fa: F[A])(f: (A) ⇒ State[S, G[B]])(implicit arg0: Applicative[G]): State[S, G[F[B]]]

    Traverse fa with a State[S, G[B]], internally using a Trampoline to avoid stack overflow.

  129. def traverseS_[S, A, B](fa: F[A])(f: (A) ⇒ State[S, B]): State[S, Unit]

    traverse_ specialized to State *

    traverse_ specialized to State *

    Definition Classes
    Foldable
  130. val traverseSyntax: TraverseSyntax[F]
  131. final def traverseU[A, GB](fa: F[A])(f: (A) ⇒ GB)(implicit G: Unapply[Applicative, GB]): M[F[A]]

    A version of traverse that infers the type constructor G.

  132. final def traverseU_[A, GB](fa: F[A])(f: (A) ⇒ GB)(implicit G: Unapply[Applicative, GB]): M[Unit]

    A version of traverse_ that infers the type constructor M.

    A version of traverse_ that infers the type constructor M.

    Definition Classes
    Foldable
  133. def traverse_[M[_], A, B](fa: F[A])(f: (A) ⇒ M[B])(implicit a: Applicative[M]): M[Unit]

    Strict traversal in an applicative functor M that ignores the result of f.

    Strict traversal in an applicative functor M that ignores the result of f.

    Definition Classes
    Foldable
  134. def void[A](fa: F[A]): F[Unit]

    Empty fa of meaningful pure values, preserving its structure.

    Empty fa of meaningful pure values, preserving its structure.

    Definition Classes
    Functor
  135. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  136. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  137. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @throws( ... )
  138. def widen[A, B](fa: F[A])(implicit ev: <~<[A, B]): F[B]

    Functors are covariant by nature, so we can treat an F[A] as an F[B] if A is a subtype of B.

    Functors are covariant by nature, so we can treat an F[A] as an F[B] if A is a subtype of B.

    Definition Classes
    Functor
  139. def xmap[A, B](fa: F[A], f: (A) ⇒ B, g: (B) ⇒ A): F[B]

    Converts ma to a value of type F[B] using the provided functions f and g.

    Converts ma to a value of type F[B] using the provided functions f and g.

    Definition Classes
    FunctorInvariantFunctor
  140. def xmapb[A, B](ma: F[A])(b: Bijection[A, B]): F[B]

    Converts ma to a value of type F[B] using the provided bijection.

    Converts ma to a value of type F[B] using the provided bijection.

    Definition Classes
    InvariantFunctor
  141. def xmapi[A, B](ma: F[A])(iso: Isomorphism.<=>[A, B]): F[B]

    Converts ma to a value of type F[B] using the provided isomorphism.

    Converts ma to a value of type F[B] using the provided isomorphism.

    Definition Classes
    InvariantFunctor
  142. def zipL[A, B](fa: F[A], fb: F[B]): F[(A, Option[B])]
  143. def zipR[A, B](fa: F[A], fb: F[B]): F[(Option[A], B)]
  144. def zipWith[A, B, C](fa: F[A], fb: F[B])(f: (A, Option[B]) ⇒ C): (List[B], F[C])
  145. def zipWithL[A, B, C](fa: F[A], fb: F[B])(f: (A, Option[B]) ⇒ C): F[C]
  146. def zipWithR[A, B, C](fa: F[A], fb: F[B])(f: (Option[A], B) ⇒ C): F[C]

Deprecated Value Members

  1. def to[A, G[_]](fa: F[A])(implicit c: CanBuildFrom[Nothing, A, G[A]]): G[A]

    Definition Classes
    Foldable
    Annotations
    @deprecated
    Deprecated

    (Since version 7.2.22) removed in scalaz 7.3

    Exceptions thrown

    NoSuchMethodException if Scala 2.13 or later

Inherited from TraverseParent[F]

Inherited from Foldable[F]

Inherited from FoldableParent[F]

Inherited from Functor[F]

Inherited from InvariantFunctor[F]

Inherited from AnyRef

Inherited from Any

Ungrouped