Packages

trait LabelledGeneric[T] extends Serializable

LabelledGeneric is similar to Generic, but includes information about field names or class names in addition to the raw structure.

Continuing the example from shadedshapeless.Generic, we use LabelledGeneric to convert an object to an shadedshapeless.HList:

scala> val lgenDog = LabelledGeneric[Dog]
lgenDog: shadedshapeless.LabelledGeneric[Dog]{ type Repr = Record.`'name -> String, 'bonesHidden -> Int`.T } = ...

scala> lgenDog.to(odie)
res15: lgenDog.Repr = odie :: 3 :: HNil

Note that the representation does not include the labels! The labels are actually encoded in the generic type representation using shadedshapeless.Witness types.

As with shadedshapeless.Generic, the representation for Animal captures the subclass embedding rather than the fields in the class, using shadedshapeless.Coproduct:

scala> val lgenAnimal = LabelledGeneric[Animal]
lgenAnimal: shadedshapeless.LabelledGeneric[Animal]{ type Repr = Union.`'Cat -> Cat, 'Dog -> Dog`.T } = ...

scala> lgenAnimal.to(odie)
res16: lgenAnimal.Repr = Dog(odie,3)

scala> genAnimal.to(odie) match { case Inr(Inl(dog)) => dog ; case _ => ???}
res19: Dog = Dog(odie,3)
T

the type which this instance can convert to and from a labelled generic representation

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Type Members

  1. abstract type Repr

    The generic representation type for {T}, which will be composed of {Coproduct} and {HList} types

Abstract Value Members

  1. abstract def from(r: Repr): T

    Convert an instance of the generic representation to an instance of the concrete type

  2. abstract def to(t: T): Repr

    Convert an instance of the concrete type to the generic value representation

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
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  4. final def asInstanceOf[T0]: T0
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  5. def clone(): AnyRef
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    protected[java.lang]
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    @native() @throws( ... )
  6. final def eq(arg0: AnyRef): Boolean
    Definition Classes
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  7. def equals(arg0: Any): Boolean
    Definition Classes
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  8. def finalize(): Unit
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    protected[java.lang]
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    @throws( classOf[java.lang.Throwable] )
  9. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  10. def hashCode(): Int
    Definition Classes
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    @native()
  11. final def isInstanceOf[T0]: Boolean
    Definition Classes
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  12. final def ne(arg0: AnyRef): Boolean
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  13. final def notify(): Unit
    Definition Classes
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    @native()
  14. final def notifyAll(): Unit
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    @native()
  15. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
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  16. def toString(): String
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  17. final def wait(): Unit
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    @throws( ... )
  18. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
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    @throws( ... )
  19. final def wait(arg0: Long): Unit
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    @native() @throws( ... )

Inherited from Serializable

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

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