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derevo

Multiple instance derivations inside a single macro annotation

CI Release
Build Status Maven Central

Breaking changes in 0.11

org.manatki.derevo pkg was shortened to derevo.

Use scalafix and this rule for migration

Installation

For Scala 2.12 and older:

addCompilerPlugin("org.scalamacros" % "paradise" % "2.1.1" cross CrossVersion.full)

For Scala 2.13:

scalacOptions += "-Ymacro-annotations"

IntelliJ Integration

Provides full support and visibility of implicits declared in @derive annotation

Download from JetBrains Marketplace

https://plugins.jetbrains.com/plugin/13697-derevo-for-intellij-idea

Build locally:

  1. cd intellij
  2. gradle buildPlugin
  3. .zip with plugin will be created in the build/distributions directory
  4. In IntelliJ open Preferences | Plugins and select "Install Plugin from Disk..."

Supported integrations

libraryDependencies += "org.manatki" %% "derevo-cats" % "latest version in badge"
import derevo.derive
import derevo.cats.{eq => eqv, show, order, monoid}

import cats.Monoid
import cats.instances.string._
import cats.instances.int._
import cats.syntax.show._
import cats.syntax.order._
import cats.syntax.semigroup._
import cats.syntax.monoid._

@derive(eqv, show, order, monoid)
case class Foo(bar: String, baz: Int)

assert(Foo("111", 222) === Foo("111", 222))
assert(show"${Foo("111", 222)}" === "Foo{bar=111,baz=222}")
assert((Foo("111", 222) compare Foo("222", 333)) == -1)
assert((Foo("1", 1) |+| Foo("2", 2)) == Foo("12", 3))
assert(Monoid[Foo].empty == Foo("", 0))
libraryDependencies += "org.manatki" %% "derevo-cats-tagless" % "latest version in badge"
import derevo.derive
import derevo.tagless.{functor, flatMap, invariant, contravariant, functorK, invariantK, semigroupalK, applyK}

// TODO
libraryDependencies += "org.manatki" %% "derevo-tethys" % "latest version in badge"
import derevo.derive
import derevo.tethys.{tethysReader, tethysWriter}

import tethys._
import tethys.derivation.builder.{FieldStyle, WriterDerivationConfig}
import tethys.jackson._

@derive(
  tethysReader,
  tethysWriter(WriterDerivationConfig.withFieldStyle(FieldStyle.lowerSnakecase))
)
final case class Bar(stringName: String, integerAge: Int)

assert(Bar("Cotique", 27).asJson == """{"string_name":"Cotique","integer_age":27}""")
assert("""{"stringName":"Elya","integerAge":32}""".jsonAs[Bar] == Right(Bar("Elya", 32)))
libraryDependencies += "org.manatki" %% "derevo-circe" % "latest version in badge"
import derevo.derive
import derevo.circe.{decoder, encoder}

import io.circe._
import io.circe.syntax._
import io.circe.parser._

@derive(decoder, encoder)
final case class Bar(stringName: String, integerAge: Int)

assert(Bar("KKK", 22).asJson.printWith(Printer.noSpaces) == """{"stringName":"KKK","integerAge":22}""")
assert(parse("""{"stringName":"WWW","integerAge":20}""").flatMap(_.as[Bar]) == Right(Bar("WWW", 20)))
libraryDependencies += "org.manatki" %% "derevo-circe-magnolia" % "latest version in badge"
import derevo.derive
import derevo.circe.magnolia.{decoder, encoder}

import io.circe._
import io.circe.syntax._
import io.circe.parser._

@derive(decoder, encoder)
final case class Bar(stringName: String, integerAge: Int)

assert(Bar("KKK", 22).asJson.printWith(Printer.noSpaces) == """{"stringName":"KKK","integerAge":22}""")
assert(parse("""{"stringName":"WWW","integerAge":20}""").flatMap(_.as[Bar]) == Right(Bar("WWW", 20)))

To change default io.circe.magnolia.configured.Configuration:

import derevo.derive
import derevo.circe.magnolia.{customizableDecoder, customizableEncoder}

import io.circe._
import io.circe.syntax._
import io.circe.parser._

@derive(customizableEncoder, customizableDecoder)
sealed trait SealedTrait

object SealedTrait {
  implicit val configuration:Configuration = Configuration.default.withDiscriminator("type")

  @derive(encoder, decoder)
  case class Bar(bar: Int) extends SealedTrait

  @derive(encoder, decoder)
  case class Baz(baz: String) extends SealedTrait
}

Ciris + HOCON

libraryDependencies += "org.manatki" %% "derevo-ciris" % "latest version in badge"
import derevo.derive
import derevo.ciris.cirisDecoder

import com.typesafe.config.ConfigFactory
import ciris.hocon._
import ciris.hocon.instances._

@derive(cirisDecoder)
case class DataConfig(name: String, addresses: List[String], mapping: Map[String, Int])

val source = hoconSource[DataConfig](
    ConfigFactory.parseString(
    """
      |data {
      |  name = AAA
      |  addresses = [home, work, pub]
      |  mapping.until = 1
      |  mapping.from  = 2
      |  mapping.to    = 3
      |}
      """.stripMargin
    ),
    "data"
)

// Load in F[_] context, cats.effect.IO just for example
import cats.effect.IO
import scala.concurrent.ExecutionContext.global

implicit val cs = IO.contextShift(global)

assert(source.load[IO].unsafeRunSync() == DataConfig("AAA", List("pub", "home", "work"), Map("until" -> 1, "from" -> 2, "to" -> 3)))
libraryDependencies += "org.manatki" %% "derevo-pureconfig" % "latest version in badge"
import derevo.derive
import derevo.pureconfig.{pureconfigReader, pureconfigWriter}

import com.typesafe.config.ConfigFactory
import pureconfig._
import pureconfig.syntax._

@derive(pureconfigReader, pureconfigWriter)
case class DataConfig(name: String, addresses: List[String], mapping: Map[String, Int])

val raw = ConfigFactory
  .parseString(
    """
      |{
      |  name = AAA
      |  addresses = [home, work, pub]
      |  mapping.until = 1
      |  mapping.from  = 2
      |  mapping.to    = 3
      |}
        """.stripMargin
  )

val parsed = ConfigSource.fromConfig(raw).load[DataConfig]

assert(parsed == Right(DataConfig("AAA", List("home", "work", "pub"), Map("until" -> 1, "from" -> 2, "to" -> 3))))
assert(parsed.map(_.toConfig.atPath("data").getConfig("data")) == Right(raw))
libraryDependencies += "org.manatki" %% "derevo-tschema" % "latest version in badge"
import derevo.derive
import derevo.tschema.{swagger, openapiParam, httpParam}

// TODO
libraryDependencies += "org.manatki" %% "derevo-rmongo" % "latest version in badge"
import derevo.derive
import derevo.reactivemongo.{bsonDocumentReader, bsonDocumentWriter}

// TODO
libraryDependencies += "org.manatki" %% "derevo-scalacheck" % "latest version in badge" % Test
import derevo.derive
import org.scalacheck.Arbitrary
import derevo.scalacheck.arbitrary

// for existing classes
sealed trait Bear
case class Beer(b: String, t: Boolean) extends Bear
case class Gear(g: Int) extends Bear

println(arbitrary.instance[Bear].arbitrary.sample)

// for classes in tests
@derive(arbitrary)
case class Test(x: String, y: List[Int])

println(implicitly[Arbitrary[Test]].arbitrary.sample)

derevo's People

Contributors

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