From c5fe23594f66225eb18bf4e67472cd80023eb448 Mon Sep 17 00:00:00 2001
From: Jakob Odersky <jakob@odersky.com>
Date: Thu, 8 Mar 2018 16:53:44 -0800
Subject: Refactor build to use sbt-crossproject

---
 src/main/scala/DerivedFormats.scala | 108 ------------------------------------
 1 file changed, 108 deletions(-)
 delete mode 100644 src/main/scala/DerivedFormats.scala

(limited to 'src/main/scala/DerivedFormats.scala')

diff --git a/src/main/scala/DerivedFormats.scala b/src/main/scala/DerivedFormats.scala
deleted file mode 100644
index d0cac38..0000000
--- a/src/main/scala/DerivedFormats.scala
+++ /dev/null
@@ -1,108 +0,0 @@
-package spray.json
-
-import magnolia._
-
-import scala.language.experimental.macros
-
-/** Mixin that enables derivation of JSON formats for any product
-  * (case classes) or coproduct (sealed traits) types. */
-trait DerivedFormats { self: BasicFormats =>
-  type Typeclass[T] = JsonFormat[T]
-
-  def combine[T](ctx: CaseClass[JsonFormat, T]): JsonFormat[T] =
-    new JsonFormat[T] {
-      override def write(value: T): JsValue = {
-        val fields: Seq[(String, JsValue)] = ctx.parameters.map { param =>
-          param.label -> param.typeclass.write(param.dereference(value))
-        }
-        JsObject(fields: _*)
-      }
-
-      override def read(value: JsValue): T = value match {
-        case obj: JsObject =>
-          if (ctx.isObject) {
-            ctx.rawConstruct(Seq.empty)
-          } else {
-            ctx.construct { param =>
-              param.typeclass.read(obj.fields(param.label))
-            }
-          }
-        case js =>
-          deserializationError(
-            s"Cannot read JSON '$js' as a ${ctx.typeName.full}")
-      }
-    }
-
-  def dispatch[T](ctx: SealedTrait[JsonFormat, T]): JsonFormat[T] = {
-    val typeFieldName = ctx.annotations
-      .collectFirst {
-        case g: gadt => g.typeFieldName
-      }
-      .getOrElse("type")
-
-    new JsonFormat[T] {
-      override def write(value: T): JsValue = ctx.dispatch(value) { sub =>
-        sub.typeclass.write(sub.cast(value)) match {
-          case obj: JsObject =>
-            JsObject(
-              (Map(typeFieldName -> JsString(sub.typeName.short)) ++
-                obj.fields).toSeq: _*)
-          case js => js
-        }
-      }
-
-      override def read(js: JsValue): T = {
-        val typeName: String = js match {
-          case obj: JsObject if obj.fields.contains(typeFieldName) =>
-            obj.fields(typeFieldName).convertTo[String]
-          case JsString(str) =>
-            str
-          case _ =>
-            deserializationError(
-              s"Cannot deserialize JSON to ${ctx.typeName.full} " +
-                "because serialized type cannot be determined.")
-        }
-
-        ctx.subtypes.find(_.typeName.short == typeName) match {
-          case Some(tpe) => tpe.typeclass.read(js)
-          case None =>
-            deserializationError(
-              s"Cannot deserialize JSON to ${ctx.typeName.full} " +
-                s"because type '${typeName}' is unsupported.")
-        }
-      }
-    }
-  }
-
-  def jsonFormat[T]: RootJsonFormat[T] =
-    macro DerivedFormatMacros.derivedFormat[T]
-
-}
-object DerivedFormats extends DerivedFormats with DefaultJsonProtocol
-
-trait ImplicitDerivedFormats extends DerivedFormats { self: BasicFormats =>
-  implicit def implicitJsonFormat[T]: RootJsonFormat[T] =
-    macro DerivedFormatMacros.derivedFormat[T]
-}
-object ImplicitDerivedFormats
-    extends ImplicitDerivedFormats
-    with DefaultJsonProtocol
-
-object DerivedFormatMacros {
-  import scala.reflect.macros.whitebox._
-
-  /** Utility that converts a magnolia-generated JsonFormat to a RootJsonFormat. */
-  def derivedFormat[T: c.WeakTypeTag](c: Context): c.Tree = {
-    import c.universe._
-    val tpe = weakTypeOf[T].typeSymbol.asType
-    val sprayPkg = c.mirror.staticPackage("spray.json")
-    val valName = TermName(c.freshName("format"))
-    q"""{
-      val $valName = ${Magnolia.gen[T](c)}
-      new $sprayPkg.RootJsonFormat[$tpe] {
-        def write(value: $tpe) = $valName.write(value)
-        def read(value: $sprayPkg.JsValue) = $valName.read(value)
-      }
-    }"""
-  }
-}
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