Support Scala3 (#349)

* EnumMacros * ValueEnumMacros * Update coreJVMTests * Update build & tests * Fix scalacheck for Scala 3 * Update more modules for Scala3 compatibility * Update play modules * Update doobie/quill * Fix * Disable Slick * Disable JSON4S * Fix test dependencies * Review * Review & rebase * * Use match instead of straight cast Signed-off-by: lloydmeta <[email protected]> * Add Scala3 mention in Readme Signed-off-by: Lloyd <[email protected]> Signed-off-by: lloydmeta <[email protected]> Signed-off-by: Lloyd <[email protected]> Co-authored-by: lloydmeta <[email protected]>
lloydmeta · Dec 3, 2022 · 6ac99af · 6ac99af
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diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
@@ -13,15 +13,18 @@ jobs:
           - java: 11
             scala: 2.11.12
           - java: 11
-            scala: 2.12.14
+            scala: 2.12.17
           - java: 11
-            scala: 2.13.6
+            scala: 2.13.10
+          - java: 11
+            scala: 3.2.1
     runs-on: ubuntu-latest
     env:
       SCALAJS_TEST_OPT: full
       # define Java options for both official sbt and sbt-extras
       JAVA_OPTS: -Xms6G -Xmx6G -Xss4M -XX:ReservedCodeCacheSize=256M -XX:MaxMetaspaceSize=1G -XX:+CMSClassUnloadingEnabled -XX:+UseConcMarkSweepGC -Dfile.encoding=UTF-8
       JVM_OPTS:  -Xms6G -Xmx6G -Xss4M -XX:ReservedCodeCacheSize=256M -XX:MaxMetaspaceSize=1G -XX:+CMSClassUnloadingEnabled -XX:+UseConcMarkSweepGC -Dfile.encoding=UTF-8
+      SBT_OPTS:  -Denumeratum.useLocalVersion
     steps:
       - name: Checkout
         uses: actions/checkout@v1
@@ -39,26 +42,23 @@ jobs:
               sbt -v ++${{ matrix.scala }} scalafmtCheck scalafmtSbtCheck scala_2_11/test:compile scala_2_11/test:doc
               sbt -v ++${{ matrix.scala }} scala_2_11/test
               ;;
-            2.12.14)
+            2.12.17)
               sbt -v ++${{ matrix.scala }} test:compile test:doc
               sbt -v ++${{ matrix.scala }} coverage test coverageReport
               sbt -v ++${{ matrix.scala }} coverageAggregate
               ;;
-            2.13.6)
+            *)
               sbt -v ++${{ matrix.scala }} test:compile test:doc
               sbt -v ++${{ matrix.scala }} test
               ;;
-            *)
-              echo unknown Scala Version ${{ matrix.scala }}
-              exit 1
           esac
           rm -rf "$HOME/.ivy2/local" || true
-          find $HOME/Library/Caches/Coursier/v1        -name "ivydata-*.properties" -delete || true
-          find $HOME/.ivy2/cache                       -name "ivydata-*.properties" -delete || true
-          find $HOME/.cache/coursier/v1                -name "ivydata-*.properties" -delete || true
-          find $HOME/.sbt                              -name "*.lock"               -delete || true
+          find $HOME/Library/Caches/Coursier/v1 -name "ivydata-*.properties" -delete || true
+          find $HOME/.ivy2/cache                -name "ivydata-*.properties" -delete || true
+          find $HOME/.cache/coursier/v1         -name "ivydata-*.properties" -delete || true
+          find $HOME/.sbt                       -name "*.lock"               -delete || true
       - name: Upload coverage to Codecov
-        if: ${{ matrix.scala == '2.12.14' }}
+        if: ${{ matrix.scala == '2.12.17' }}
         uses: codecov/codecov-action@v2
         with:
           fail_ci_if_error: true
diff --git a/.scalafmt.conf b/.scalafmt.conf
@@ -1,3 +1,10 @@
-version = 3.0.0-RC6
+version = 3.5.8
+runner.dialect = Scala213Source3
 style = defaultWithAlign
 maxColumn = 100
+
+fileOverride {
+  "glob:**/src/*/scala-3/**/*.scala" {
+    runner.dialect = scala3
+  }
+}
diff --git a/README.md b/README.md
@@ -21,7 +21,11 @@ Enumeratum has the following niceties:
 - All magic happens at compile-time so you know right away when things go awry
 - Comprehensive automated testing to make sure everything is in tip-top shape
 
-Enumeratum is published for Scala 2.11.x, 2.12.x, 2.13.x as well as ScalaJS.
+Enumeratum is published for Scala 2.11.x, 2.12.x, 2.13.x, 3.x as well as ScalaJS.
+
+Note that there are a couple of limitations for 3.x:
+* All "immediate" parent types of enum entries need to be `sealed` (reasoning [here](https://github.com/lloydmeta/enumeratum/pull/349#discussion_r1034715979))
+* The `-Yretain-trees` Scalac option must be set when using ValueEnums
 
 Integrations are available for: