final case class -\/[+A](a: A) extends \/[A, Nothing] with Product with Serializable
A left disjunction
Often used to represent the failure case of a result
- Source
- Either.scala
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- -\/
- \/
- Serializable
- Serializable
- Product
- Equals
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Instance Constructors
- new -\/(a: A)
Type Members
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final
class
SwitchingDisjunction
[X] extends AnyRef
- Definition Classes
- \/
Value Members
-
final
def
!=(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
-
final
def
##(): Int
- Definition Classes
- AnyRef → Any
-
def
+++[AA >: A, BB >: Nothing](x: ⇒ \/[AA, BB])(implicit M1: Semigroup[BB], M2: Semigroup[AA]): \/[AA, BB]
Sums up values inside disjunction, if both are left or right.
Sums up values inside disjunction, if both are left or right. Returns first left otherwise.
\/-(v1) +++ \/-(v2) → \/-(v1 + v2) \/-(v1) +++ -\/(v2) → -\/(v2) -\/(v1) +++ \/-(v2) → -\/(v1) -\/(v1) +++ -\/(v2) → -\/(v1 + v2)
- Definition Classes
- \/
-
def
:?>>[X](right: ⇒ X): SwitchingDisjunction[X]
If this disjunction is right, return the given X value, otherwise, return the X value given to the return value.
If this disjunction is right, return the given X value, otherwise, return the X value given to the return value.
- Definition Classes
- \/
-
final
def
==(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
-
def
===[AA >: A, BB >: Nothing](x: \/[AA, BB])(implicit EA: Equal[AA], EB: Equal[BB]): Boolean
Compare two disjunction values for equality.
Compare two disjunction values for equality.
- Definition Classes
- \/
-
def
@\?/[AA, BB](k: (Validation[A, Nothing]) ⇒ Validation[AA, BB]): \/[AA, BB]
Run a validation function and back to disjunction again.
Run a validation function and back to disjunction again. Alias for
validationed- Definition Classes
- \/
- val a: A
-
def
ap[AA >: A, C](f: ⇒ \/[AA, (Nothing) ⇒ C]): \/[AA, C]
Apply a function in the environment of the right of this disjunction.
Apply a function in the environment of the right of this disjunction.
- Definition Classes
- \/
-
final
def
asInstanceOf[T0]: T0
- Definition Classes
- Any
-
def
bimap[C, D](f: (A) ⇒ C, g: (Nothing) ⇒ D): \/[C, D]
Binary functor map on this disjunction.
Binary functor map on this disjunction.
- Definition Classes
- \/
-
def
bitraverse[F[_], C, D](f: (A) ⇒ F[C], g: (Nothing) ⇒ F[D])(implicit arg0: Functor[F]): F[\/[C, D]]
Binary functor traverse on this disjunction.
Binary functor traverse on this disjunction.
- Definition Classes
- \/
-
def
clone(): AnyRef
- Attributes
- protected[java.lang]
- Definition Classes
- AnyRef
- Annotations
- @throws( ... )
-
def
compare[AA >: A, BB >: Nothing](x: \/[AA, BB])(implicit EA: Order[AA], EB: Order[BB]): Ordering
Compare two disjunction values for ordering.
Compare two disjunction values for ordering.
- Definition Classes
- \/
-
def
ensure[AA >: A](onLeft: ⇒ AA)(f: (Nothing) ⇒ Boolean): \/[AA, Nothing]
Ensures that the right value of this disjunction satisfies the given predicate, or returns left with the given value.
Ensures that the right value of this disjunction satisfies the given predicate, or returns left with the given value.
- Definition Classes
- \/
-
final
def
eq(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
-
def
exists[BB >: Nothing](p: (BB) ⇒ Boolean): Boolean
Return
trueif this disjunction is a right value satisfying the given predicate.Return
trueif this disjunction is a right value satisfying the given predicate.- Definition Classes
- \/
-
def
filter[AA >: A](p: (Nothing) ⇒ Boolean)(implicit M: Monoid[AA]): \/[AA, Nothing]
Filter on the right of this disjunction.
Filter on the right of this disjunction.
- Definition Classes
- \/
-
def
finalize(): Unit
- Attributes
- protected[java.lang]
- Definition Classes
- AnyRef
- Annotations
- @throws( classOf[java.lang.Throwable] )
-
def
flatMap[AA >: A, D](g: (Nothing) ⇒ \/[AA, D]): \/[AA, D]
Bind through the right of this disjunction.
Bind through the right of this disjunction.
- Definition Classes
- \/
-
def
fold[X](l: (A) ⇒ X, r: (Nothing) ⇒ X): X
Catamorphism.
Catamorphism. Run the first given function if left, otherwise, the second given function.
- Definition Classes
- \/
-
def
foldRight[Z](z: ⇒ Z)(f: (Nothing, ⇒ Z) ⇒ Z): Z
Fold on the right of this disjunction.
Fold on the right of this disjunction.
- Definition Classes
- \/
-
def
forall[BB >: Nothing](p: (BB) ⇒ Boolean): Boolean
Return
trueif this disjunction is a left value or the right value satisfies the given predicate.Return
trueif this disjunction is a left value or the right value satisfies the given predicate.- Definition Classes
- \/
-
def
foreach(g: (Nothing) ⇒ Unit): Unit
Run the side-effect on the right of this disjunction.
Run the side-effect on the right of this disjunction.
- Definition Classes
- \/
-
final
def
getClass(): Class[_]
- Definition Classes
- AnyRef → Any
-
def
getOrElse[BB >: Nothing](x: ⇒ BB): BB
Return the right value of this disjunction or the given default if left.
Return the right value of this disjunction or the given default if left. Alias for
|- Definition Classes
- \/
-
final
def
isInstanceOf[T0]: Boolean
- Definition Classes
- Any
-
def
isLeft: Boolean
Return
trueif this disjunction is left.Return
trueif this disjunction is left.- Definition Classes
- \/
-
def
isRight: Boolean
Return
trueif this disjunction is right.Return
trueif this disjunction is right.- Definition Classes
- \/
-
def
leftMap[C](f: (A) ⇒ C): \/[C, Nothing]
Run the given function on the left value.
Run the given function on the left value.
- Definition Classes
- \/
-
def
loopl[AA >: A, BB >: Nothing, X](left: (AA) ⇒ \/[X, \/[AA, BB]], right: (BB) ⇒ X): X
Spin in tail-position on the left value of this disjunction.
Spin in tail-position on the left value of this disjunction.
- Definition Classes
- \/
-
def
loopr[AA >: A, BB >: Nothing, X](left: (AA) ⇒ X, right: (BB) ⇒ \/[X, \/[AA, BB]]): X
Spin in tail-position on the right value of this disjunction.
Spin in tail-position on the right value of this disjunction.
- Definition Classes
- \/
-
def
map[D](g: (Nothing) ⇒ D): \/[A, D]
Map on the right of this disjunction.
Map on the right of this disjunction.
- Definition Classes
- \/
-
def
merge[AA >: A](implicit ev: <~<[Nothing, AA]): AA
Return the value from whichever side of the disjunction is defined, given a commonly assignable type.
Return the value from whichever side of the disjunction is defined, given a commonly assignable type.
- Definition Classes
- \/
-
final
def
ne(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
-
final
def
notify(): Unit
- Definition Classes
- AnyRef
-
final
def
notifyAll(): Unit
- Definition Classes
- AnyRef
-
def
orElse[C, BB >: Nothing](x: ⇒ \/[C, BB]): \/[C, BB]
Return this if it is a right, otherwise, return the given value.
Return this if it is a right, otherwise, return the given value. Alias for
|||- Definition Classes
- \/
-
def
recover[BB >: Nothing](pf: PartialFunction[A, BB]): \/[A, BB]
Run the given function on the left and return right with the result.
Run the given function on the left and return right with the result.
- Definition Classes
- \/
-
def
recoverWith[AA >: A, BB >: Nothing](pf: PartialFunction[AA, \/[AA, BB]]): \/[AA, BB]
Run the given function on the left and return the result.
Run the given function on the left and return the result.
- Definition Classes
- \/
-
def
show[AA >: A, BB >: Nothing](implicit SA: Show[AA], SB: Show[BB]): Cord
Show for a disjunction value.
Show for a disjunction value.
- Definition Classes
- \/
-
def
swap: \/[Nothing, A]
Flip the left/right values in this disjunction.
Flip the left/right values in this disjunction. Alias for
unary_~- Definition Classes
- \/
-
def
swapped[AA, BB](k: (\/[Nothing, A]) ⇒ \/[BB, AA]): \/[AA, BB]
Run the given function on this swapped value.
Run the given function on this swapped value. Alias for
~- Definition Classes
- \/
-
final
def
synchronized[T0](arg0: ⇒ T0): T0
- Definition Classes
- AnyRef
-
def
toEither: Either[A, Nothing]
Convert to a core
scala.Eitherat your own peril.Convert to a core
scala.Eitherat your own peril.- Definition Classes
- \/
-
def
toList: List[Nothing]
Return an empty list or list with one element on the right of this disjunction.
Return an empty list or list with one element on the right of this disjunction.
- Definition Classes
- \/
-
def
toMaybe[BB >: Nothing]: Maybe[BB]
Return an empty maybe or option with one element on the right of this disjunction.
Return an empty maybe or option with one element on the right of this disjunction. Useful to sweep errors under the carpet.
- Definition Classes
- \/
-
def
toOption: Option[Nothing]
Return an empty option or option with one element on the right of this disjunction.
Return an empty option or option with one element on the right of this disjunction. Useful to sweep errors under the carpet.
- Definition Classes
- \/
-
def
toStream: Stream[Nothing]
Return an empty stream or stream with one element on the right of this disjunction.
Return an empty stream or stream with one element on the right of this disjunction.
- Definition Classes
- \/
-
def
toThese: \&/[A, Nothing]
Convert to a These.
Convert to a These.
- Definition Classes
- \/
-
def
traverse[F[_], AA >: A, D](g: (Nothing) ⇒ F[D])(implicit arg0: Applicative[F]): F[\/[AA, D]]
Traverse on the right of this disjunction.
Traverse on the right of this disjunction.
- Definition Classes
- \/
-
def
unary_~: \/[Nothing, A]
Flip the left/right values in this disjunction.
Flip the left/right values in this disjunction. Alias for
swap- Definition Classes
- \/
-
def
validation: Validation[A, Nothing]
Convert to a Validation.
Convert to a Validation.
- Definition Classes
- \/
-
def
validationNel[AA >: A]: ValidationNel[AA, Nothing]
Convert to a ValidationNel.
Convert to a ValidationNel.
- Definition Classes
- \/
-
def
validationed[AA, BB](k: (Validation[A, Nothing]) ⇒ Validation[AA, BB]): \/[AA, BB]
Run a validation function and back to disjunction again.
Run a validation function and back to disjunction again. Alias for
@\?/- Definition Classes
- \/
-
def
valueOr[BB >: Nothing](x: (A) ⇒ BB): BB
Return the right value of this disjunction or run the given function on the left.
Return the right value of this disjunction or run the given function on the left.
- Definition Classes
- \/
-
final
def
wait(): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws( ... )
-
final
def
wait(arg0: Long, arg1: Int): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws( ... )
-
final
def
wait(arg0: Long): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws( ... )
-
def
|[BB >: Nothing](x: ⇒ BB): BB
Return the right value of this disjunction or the given default if left.
Return the right value of this disjunction or the given default if left. Alias for
getOrElse- Definition Classes
- \/
-
def
|||[C, BB >: Nothing](x: ⇒ \/[C, BB]): \/[C, BB]
Return this if it is a right, otherwise, return the given value.
Return this if it is a right, otherwise, return the given value. Alias for
orElse- Definition Classes
- \/
-
def
~[AA, BB](k: (\/[Nothing, A]) ⇒ \/[BB, AA]): \/[AA, BB]
Run the given function on this swapped value.
Run the given function on this swapped value. Alias for
swapped- Definition Classes
- \/