Merge pull request #643 from fthomas/topic/enumeratum-scala-3

Build ciris-enumeratum with Scala 3

build.sbt

@@ -131,7 +131,9 @@ lazy val enumeratum = crossProject(JSPlatform, JVMPlatform)
     ),
     publishSettings,
     mimaSettings,
-    scalaSettings,
+    scalaSettings ++ Seq(
+      crossScalaVersions += scala3
+    ),
     testSettings
   )
   .jsSettings(sharedJsSettings)
@@ -366,7 +368,7 @@ lazy val publishSettings =
 
 lazy val mimaSettings = Seq(
   mimaPreviousArtifacts := {
-    val unpublishedModules = Set[String]()
+    val unpublishedModules = Set[String]("ciris-enumeratum")
     if (publishArtifact.value && !unpublishedModules.contains(moduleName.value)) {
       Set(organization.value %% moduleName.value % (ThisBuild / previousStableVersion).value.get)
     } else Set()
@@ -429,7 +431,7 @@ lazy val scalaSettings = Seq(
 
     val scala3ScalacOptions =
       if (scalaVersion.value.startsWith("3")) {
-        Seq("-Ykind-projector")
+        Seq("-Ykind-projector", "-Yretain-trees")
       } else Seq()
 
     commonScalacOptions ++

modules/enumeratum/shared/src/main/scala-3/enumeratum/internal/TypeNameRuntimePlatform.scala

@@ -0,0 +1,19 @@
+/*
+ * Copyright 2017-2023 Viktor Rudebeck
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+package enumeratum.internal
+
+import scala.quoted._
+
+private[internal] trait TypeNameRuntimePlatform {
+  inline given [A]: TypeName[A] =
+    ${TypeNameRuntimePlatform.typeName[A]}
+}
+
+private[internal] object TypeNameRuntimePlatform {
+  final def typeName[A](using t: Type[A], ctx: Quotes): Expr[TypeName[A]] =
+    '{TypeName[A](${Expr(Type.show[A])})}
+}