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  • package circe
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  • package generic
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  • package extras
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  • object semiauto

    Semi-automatic codec derivation.

    Semi-automatic codec derivation.

    This object provides helpers for creating io.circe.Decoder and io.circe.Encoder.AsObject instances for case classes, "incomplete" case classes, sealed trait hierarchies, etc.

    Typical usage will look like the following:

    import io.circe._, io.circe.generic.semiauto._

case class Foo(i: Int, p: (String, Double))

object Foo {
  implicit val decodeFoo: Decoder[Foo] = deriveConfiguredDecoder[Foo]
  implicit val encodeFoo: Encoder.AsObject[Foo] = deriveConfiguredEncoder[Foo]
}
    Definition Classes
    extras
  • DerivationHelper
c

io.circe.generic.extras.semiauto

DerivationHelper

final class DerivationHelper[A] extends AnyRef

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  1. new DerivationHelper()

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  10. final def incomplete[P <: HList, C, D <: HList, T <: HList, R <: HList](implicit ffp: shapeless.ops.function.FnFromProduct.Aux[(P) ⇒ C, A], gen: Aux[C, T], removeAll: Aux[T, P, (P, R)], decode: ReprDecoder[R], defaults: Aux[C, D], defaultMapper: RecordToMap[D], config: Configuration): Decoder[A]
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  15. final def patch[D <: HList, R <: HList, O <: HList](implicit gen: Aux[A, R], patch: Aux[R, O], decode: ReprDecoder[O], defaults: Aux[A, D], defaultMapper: RecordToMap[D], config: Configuration): Decoder[(A) ⇒ A]
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    (Since version ) see corresponding Javadoc for more information.

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