From f375ca336083f7ff45386e604431dac6fef8a507 Mon Sep 17 00:00:00 2001
From: xuwei-k <6b656e6a69@gmail.com>
Date: Mon, 25 Dec 2023 14:11:56 +0900
Subject: [PATCH] add `-Xsource:3`

---
 build.sbt                                   | 8 ++++++++
 jvm/src/test/scala/msgpack4z/JavaSpec.scala | 2 +-
 src/test/scala/msgpack4z/NativeSpec.scala   | 4 ++--
 3 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/build.sbt b/build.sbt
index 80a5a4d..86543c2 100644
--- a/build.sbt
+++ b/build.sbt
@@ -91,6 +91,14 @@ val commonSettings = Def.settings(
         Nil
     }
   },
+  scalacOptions ++= {
+    CrossVersion.partialVersion(scalaVersion.value) match {
+      case Some((2, _)) =>
+        Seq("-Xsource:3")
+      case _ =>
+        Nil
+    }
+  },
   scalacOptions ++= unusedWarnings,
   scalaVersion := scala212,
   crossScalaVersions := scala212 :: "2.13.12" :: "3.3.1" :: Nil,
diff --git a/jvm/src/test/scala/msgpack4z/JavaSpec.scala b/jvm/src/test/scala/msgpack4z/JavaSpec.scala
index 3328f48..c56bbd9 100644
--- a/jvm/src/test/scala/msgpack4z/JavaSpec.scala
+++ b/jvm/src/test/scala/msgpack4z/JavaSpec.scala
@@ -1,6 +1,6 @@
 package msgpack4z
 
 object JavaSpec extends SpecBase {
-  override protected[this] def packer() = new MsgpackJavaPacker()
+  override protected[this] def packer(): MsgPacker = new MsgpackJavaPacker()
   override protected[this] def unpacker(bytes: Array[Byte]) = MsgpackJavaUnpacker.defaultUnpacker(bytes)
 }
diff --git a/src/test/scala/msgpack4z/NativeSpec.scala b/src/test/scala/msgpack4z/NativeSpec.scala
index 6130d40..aeb2410 100644
--- a/src/test/scala/msgpack4z/NativeSpec.scala
+++ b/src/test/scala/msgpack4z/NativeSpec.scala
@@ -1,6 +1,6 @@
 package msgpack4z
 
 object NativeSpec extends SpecBase {
-  override protected[this] def packer() = MsgOutBuffer.create()
-  override protected[this] def unpacker(bytes: Array[Byte]) = MsgInBuffer(bytes)
+  override protected[this] def packer(): MsgPacker = MsgOutBuffer.create()
+  override protected[this] def unpacker(bytes: Array[Byte]): MsgUnpacker = MsgInBuffer(bytes)
 }