abstract class Transform[F[_]] extends AnyRef
Typeclass that describes type constructors that support the exmap
operation.
- Self Type
- Transform[F]
- Source
- Transform.scala
- Alphabetic
- By Inheritance
- Transform
- AnyRef
- Any
- by any2stringadd
- by StringFormat
- by Ensuring
- by ArrowAssoc
- Hide All
- Show All
- Public
- All
Instance Constructors
- new Transform()
Abstract Value Members
Concrete Value Members
-
final
def
!=(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
-
final
def
##(): Int
- Definition Classes
- AnyRef → Any
- def +(other: String): String
- def ->[B](y: B): (Transform[F], B)
-
final
def
==(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
-
def
as[A, B](fa: F[A])(implicit as: Transformer[A, B]): F[B]
Transforms supplied
F[A]
to anF[B]
using implicitly available evidence that such a transformation is possible.Transforms supplied
F[A]
to anF[B]
using implicitly available evidence that such a transformation is possible.Typical transformations include converting:
- an
F[L]
for someL <: HList
to/from anF[CC]
for some case classCC
, where the types in the case class are aligned with the types inL
- an
F[C]
for someC <: Coproduct
to/from anF[SC]
for some sealed classSC
, where the component types in the coproduct are the leaf subtypes of the sealed class.
- an
-
final
def
asInstanceOf[T0]: T0
- Definition Classes
- Any
-
def
clone(): AnyRef
- Attributes
- protected[java.lang]
- Definition Classes
- AnyRef
- Annotations
- @native() @throws( ... )
- def ensuring(cond: (Transform[F]) ⇒ Boolean, msg: ⇒ Any): Transform[F]
- def ensuring(cond: (Transform[F]) ⇒ Boolean): Transform[F]
- def ensuring(cond: Boolean, msg: ⇒ Any): Transform[F]
- def ensuring(cond: Boolean): Transform[F]
-
final
def
eq(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
-
def
equals(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
-
def
finalize(): Unit
- Attributes
- protected[java.lang]
- Definition Classes
- AnyRef
- Annotations
- @throws( classOf[java.lang.Throwable] )
- def formatted(fmtstr: String): String
-
final
def
getClass(): Class[_]
- Definition Classes
- AnyRef → Any
- Annotations
- @native()
-
def
hashCode(): Int
- Definition Classes
- AnyRef → Any
- Annotations
- @native()
-
final
def
isInstanceOf[T0]: Boolean
- Definition Classes
- Any
-
def
narrow[A, B](fa: F[A], f: (A) ⇒ Attempt[B], g: (B) ⇒ A): F[B]
Transforms supplied
F[A]
to anF[B]
using two functions,A => Attempt[B]
andB => A
.Transforms supplied
F[A]
to anF[B]
using two functions,A => Attempt[B]
andB => A
.The supplied functions form an injection from
B
toA
. Hence, converting aF[A]
to aF[B]
converts from a larger to a smaller type. Hence, the namenarrow
. -
final
def
ne(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
-
final
def
notify(): Unit
- Definition Classes
- AnyRef
- Annotations
- @native()
-
final
def
notifyAll(): Unit
- Definition Classes
- AnyRef
- Annotations
- @native()
-
final
def
synchronized[T0](arg0: ⇒ T0): T0
- Definition Classes
- AnyRef
-
def
toString(): String
- Definition Classes
- AnyRef → Any
-
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
- @native() @throws( ... )
-
def
widen[A, B](fa: F[A], f: (A) ⇒ B, g: (B) ⇒ Attempt[A]): F[B]
Transforms supplied
F[A]
to anF[B]
using two functions,A => B
andB => Attempt[A]
.Transforms supplied
F[A]
to anF[B]
using two functions,A => B
andB => Attempt[A]
.The supplied functions form an injection from
A
toB
. Hence, converting aF[A]
to aF[B]
converts from a smaller to a larger type. Hence, the namewiden
. -
def
widenOpt[A, B](fa: F[A], f: (A) ⇒ B, g: (B) ⇒ Option[A]): F[B]
Transforms supplied
F[A]
to anF[B]
using two functions,A => B
andB => Option[A]
.Transforms supplied
F[A]
to anF[B]
using two functions,A => B
andB => Option[A]
.Particularly useful when combined with case class apply/unapply. E.g.,
widenOpt(fa, Foo.apply, Foo.unapply)
. -
def
xmap[A, B](fa: F[A], f: (A) ⇒ B, g: (B) ⇒ A): F[B]
Transforms supplied
F[A]
to anF[B]
using the isomorphism described by two functions,A => B
andB => A
. - def →[B](y: B): (Transform[F], B)
Deprecated Value Members
-
def
pxmap[A, B](fa: F[A], f: (A) ⇒ B, g: (B) ⇒ Option[A]): F[B]
Transforms supplied
F[A]
to anF[B]
using two functions,A => B
andB => Option[A]
.Transforms supplied
F[A]
to anF[B]
using two functions,A => B
andB => Option[A]
.Particularly useful when combined with case class apply/unapply. E.g.,
pxmap(fa, Foo.apply, Foo.unapply)
.- Annotations
- @deprecated
- Deprecated
(Since version 1.7.0) Use widenOpt instead