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View Code? Open in Web Editor NEWConfigured derivation library for scala 3
License: MIT License
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derivation's Issues
Problems with deriving EvoCodec for ADT's
Error messages suggests problem with LazySummon
Base Snippet:
//> using scala "3.2.0"
//> using lib "com.evolution::derivation-circe:0.1-fd8fba2a1f9529f0adc55912129fe9a6974918fc-SNAPSHOT"
import evo.derivation.*
import evo.derivation.circe.*
import evo.derivation.config.Config
import io.circe.Codec
sealed trait MyDataType
final case class Foo(foo: String, bar: Int) extends MyDataType
case object Baz extends MyDataTypeCompiling
object MyDataType:
implicit val config: Config[MyDataType] = Config.derived[MyDataType]
implicit val actionCodec: Codec[MyDataType] =
EvoCodec.derived[MyDataType]object MyDataType:
given Config[MyDataType] = Config.derived[MyDataType]
implicit val actionCodec: Codec[MyDataType] =
EvoCodec.derived[MyDataType]Not compiling
object MyDataType:
implicit val actionCodec: Codec[MyDataType] =
EvoCodec.derived[MyDataType](using Config.derived[MyDataType]) object MyDataType:
val config: Config[MyDataType] = Config.derived[MyDataType]
implicit val actionCodec: Codec[MyDataType] =
EvoCodec.derived[MyDataType](using config) Support nested hierarchies
//> using scala "3.2.0"
//> using lib "com.evolution::derivation-circe:0.1.2-SNAPSHOT"
import evo.derivation.*
import evo.derivation.circe.*
import evo.derivation.config.Config
sealed trait Animal derives Config, EvoCodec
sealed trait Mammal
sealed trait Reptile
final case class Dog() extends Mammalcould not derive evo.derivation.circe.EvoEncoder[Animal], look's like Animal is neither case class or enum
Add `strictDecoding` option to Config
circe-generic-extras has strictDecoding option which is missing here.
Consider rename of `config.scala` file
By default, mac os filesystem is case insensitive so files like Config.scala and config.scala are treated as the same file.
Of course, this issue can be solved on user side - they need to create another partition which will be case sensitive but it can be a bit of ceremony for users which use company provided macbooks.
Cannot derive codec for value classes
//> using scala "3.2.0"
//> using lib "com.evolution::derivation-circe:0.1-fd8fba2a1f9529f0adc55912129fe9a6974918fc-SNAPSHOT"
import evo.derivation.*
import evo.derivation.circe.*
import evo.derivation.config.Config
import io.circe.Codec
import io.circe.syntax.*
final case class Foo(foo: String) extends AnyVal derives Config, EvoCodecInfinite loop in function body given_Encoder_Representation
Infinite loop in function body given_Decoder_Representation
Provide more user friendly way to derive codecs
Annotation based configuration is super useful, but it might be hard to use in cases when one's datatypes are part of e.g. public API and are shared among few apps. Bringing circe, cats and friends into scope is almost impossible.
Of course one can use derived methods explicitly, but it's not as convenient as using circe's deriveConfiguredCodec and similar. Snippet included to issue doesn't use any configuration options but each one of them will require additional codes which is not easy to write as there are almost no comments in sources.
Reproduction uses scala-cli and locally published version of library.
//> using scala "3.2.0"
//> using lib "com.evolution::derivation-circe:0.1-fd8fba2a1f9529f0adc55912129fe9a6974918fc-SNAPSHOT"
import evo.derivation.*
import evo.derivation.circe.*
import evo.derivation.config.Config
import io.circe.Codec
final case class MyDataType(foo: String, bar: Int)
object MyDataType:
implicit val actionCodec: Codec[MyDataType] =
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