From a2e9c7bdc289491008609a628ae38a1813698271 Mon Sep 17 00:00:00 2001
From: "Frank S. Thomas" <frank@timepit.eu>
Date: Wed, 8 Feb 2023 12:49:44 +0100
Subject: [PATCH 1/3] Build ciris-enumeratum with Scala 3

This PR cross builds ciris-enumeratum with Scala 3:

* Scala 3 has been added to the enumeratum's `crossScalaVersions`
* The `TypeNameRuntimePlatform` has been splitted for Scala 2 and
  Scala 3. The Scala 3 implementation has been copied from the refined
  module.
* `-Yretain-trees` was added to the Scala 3 `scalacOptions` to fix test
  compilation errors:
  ```
  sbt:ciris> enumeratumJVM/test
  [info] compiling 2 Scala sources to modules/enumeratum/jvm/target/scala-3.2.2/test-classes ...
  [error] -- Error: modules/enumeratum/shared/src/test/scala/enumeratum/values/CirisValueEnumSpec.scala:216:17
  [error] 216 |    val values = findValues
  [error]     |                 ^^^^^^^^^^
  [error]     |                 Option -Yretain-trees must be set in scalacOptions.
  [error]     |                 In SBT settings:
  [error]     |
  [error]     |                   scalacOptions += "-Yretain-trees"
  ```
  It is expected that this must be set:
  https://github.com/lloydmeta/enumeratum/blob/1facfdddd9498411ac8eb270cd8089d4b4f4cab0/README.md?plain=1#L28
---
 build.sbt                                     |  6 ++++--
 .../internal/TypeNameRuntimePlatform.scala    |  0
 .../internal/TypeNameRuntimePlatform.scala    | 19 +++++++++++++++++++
 3 files changed, 23 insertions(+), 2 deletions(-)
 rename modules/enumeratum/shared/src/main/{scala => scala-2}/enumeratum/internal/TypeNameRuntimePlatform.scala (100%)
 create mode 100644 modules/enumeratum/shared/src/main/scala-3/enumeratum/internal/TypeNameRuntimePlatform.scala

diff --git a/build.sbt b/build.sbt
index 86b16791..29f9489e 100644
--- a/build.sbt
+++ b/build.sbt
@@ -127,7 +127,9 @@ lazy val enumeratum = crossProject(JSPlatform, JVMPlatform)
     ),
     publishSettings,
     mimaSettings,
-    scalaSettings,
+    scalaSettings ++ Seq(
+      crossScalaVersions += scala3
+    ),
     testSettings
   )
   .jsSettings(sharedJsSettings)
@@ -425,7 +427,7 @@ lazy val scalaSettings = Seq(
 
     val scala3ScalacOptions =
       if (scalaVersion.value.startsWith("3")) {
-        Seq("-Ykind-projector")
+        Seq("-Ykind-projector", "-Yretain-trees")
       } else Seq()
 
     commonScalacOptions ++
diff --git a/modules/enumeratum/shared/src/main/scala/enumeratum/internal/TypeNameRuntimePlatform.scala b/modules/enumeratum/shared/src/main/scala-2/enumeratum/internal/TypeNameRuntimePlatform.scala
similarity index 100%
rename from modules/enumeratum/shared/src/main/scala/enumeratum/internal/TypeNameRuntimePlatform.scala
rename to modules/enumeratum/shared/src/main/scala-2/enumeratum/internal/TypeNameRuntimePlatform.scala
diff --git a/modules/enumeratum/shared/src/main/scala-3/enumeratum/internal/TypeNameRuntimePlatform.scala b/modules/enumeratum/shared/src/main/scala-3/enumeratum/internal/TypeNameRuntimePlatform.scala
new file mode 100644
index 00000000..4528b2eb
--- /dev/null
+++ b/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])})}
+}

From 8646fc5a9f9665e4fe3870444fe0bea6caa77c06 Mon Sep 17 00:00:00 2001
From: Viktor Lovgren <viktor@lovg.ren>
Date: Wed, 8 Feb 2023 16:42:59 +0100
Subject: [PATCH 2/3] Add ciris-enumeratum_3 to unpublished modules

---
 build.sbt | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/build.sbt b/build.sbt
index 29f9489e..4b191af3 100644
--- a/build.sbt
+++ b/build.sbt
@@ -364,9 +364,9 @@ lazy val publishSettings =
 
 lazy val mimaSettings = Seq(
   mimaPreviousArtifacts := {
-    val unpublishedModules = Set[String]()
+    val unpublishedModules = Set[String]("ciris-enumeratum_3")
     if (publishArtifact.value && !unpublishedModules.contains(moduleName.value)) {
-      Set(organization.value %% moduleName.value % (ThisBuild / previousStableVersion).value.get)
+      Set(organization.value % moduleName.value % (ThisBuild / previousStableVersion).value.get)
     } else Set()
   },
   mimaBinaryIssueFilters ++= {

From 6527c58fa5fb860881c6ebca40ea0c7ee8b43c2c Mon Sep 17 00:00:00 2001
From: Viktor Lovgren <viktor@lovg.ren>
Date: Wed, 8 Feb 2023 16:44:01 +0100
Subject: [PATCH 3/3] Change to ciris-enumeratum in unpublished modules

---
 build.sbt | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/build.sbt b/build.sbt
index 4b191af3..94bb224b 100644
--- a/build.sbt
+++ b/build.sbt
@@ -364,9 +364,9 @@ lazy val publishSettings =
 
 lazy val mimaSettings = Seq(
   mimaPreviousArtifacts := {
-    val unpublishedModules = Set[String]("ciris-enumeratum_3")
+    val unpublishedModules = Set[String]("ciris-enumeratum")
     if (publishArtifact.value && !unpublishedModules.contains(moduleName.value)) {
-      Set(organization.value % moduleName.value % (ThisBuild / previousStableVersion).value.get)
+      Set(organization.value %% moduleName.value % (ThisBuild / previousStableVersion).value.get)
     } else Set()
   },
   mimaBinaryIssueFilters ++= {