Merge pull request #445 from AVSystem/scala-update

Scala update

Author: ddworak

.github/workflows/ci.yml

@@ -24,7 +24,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        scala: [2.13.10, 2.12.17]
+        scala: [2.13.11, 2.12.18]
         java: [temurin@11, temurin@17]
     runs-on: ${{ matrix.os }}
     steps:
@@ -101,7 +101,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        scala: [2.13.10]
+        scala: [2.13.11]
         java: [temurin@11]
     runs-on: ${{ matrix.os }}
     steps:
@@ -136,22 +136,22 @@ jobs:
             ~/Library/Caches/Coursier/v1
           key: ${{ runner.os }}-sbt-cache-v2-${{ hashFiles('**/*.sbt') }}-${{ hashFiles('project/build.properties') }}
 
-      - name: Download target directories (2.13.10)
+      - name: Download target directories (2.13.11)
         uses: actions/download-artifact@v2
         with:
-          name: target-${{ matrix.os }}-2.13.10-${{ matrix.java }}
+          name: target-${{ matrix.os }}-2.13.11-${{ matrix.java }}
 
-      - name: Inflate target directories (2.13.10)
+      - name: Inflate target directories (2.13.11)
         run: |
           tar xf targets.tar
           rm targets.tar
 
-      - name: Download target directories (2.12.17)
+      - name: Download target directories (2.12.18)
         uses: actions/download-artifact@v2
         with:
-          name: target-${{ matrix.os }}-2.12.17-${{ matrix.java }}
+          name: target-${{ matrix.os }}-2.12.18-${{ matrix.java }}
 
-      - name: Inflate target directories (2.12.17)
+      - name: Inflate target directories (2.12.18)
         run: |
           tar xf targets.tar
           rm targets.tar

core/src/main/scala/com/avsystem/commons/derivation/DeferredInstance.scala

@@ -1,6 +1,6 @@
 package com.avsystem.commons
 package derivation
 
-trait DeferredInstance[T] {this: T =>
+trait DeferredInstance[T] { this: T =>
   var underlying: T = _
 }

core/src/test/scala/com/avsystem/commons/misc/SharedExtensionsTest.scala

@@ -154,7 +154,12 @@ class SharedExtensionsTest extends AnyFunSuite with Matchers {
   }
 
   test("sourceCode") {
-    assert(123.sourceCode == "123")
+    // for some magical reason does not work on 'Int' type in Scala 2.13.11:
+    // java.lang.NullPointerException: Cannot invoke "scala.reflect.internal.Symbols$Symbol.owner()" because the return value of "scala.reflect.internal.Trees$Tree.symbol()" is null
+    // scala.tools.nsc.typechecker.Typers$Typer.checkDubiousAdaptation$1(Typers.scala:5330)
+    // assert(123.sourceCode == "123")
+
+    assert(123.123.sourceCode == "123.123")
 
     val src = {
       println(123)
@@ -169,7 +174,7 @@ class SharedExtensionsTest extends AnyFunSuite with Matchers {
   }
 
   test("withSourceCode") {
-    assert(123.withSourceCode == (123, "123"))
+    assert(123.123.withSourceCode == (123.123, "123.123"))
   }
 
   test("flatCollect") {

core/src/test/scala/com/avsystem/commons/serialization/BuildablePojo.scala

@@ -1,8 +1,6 @@
 package com.avsystem.commons
 package serialization
 
-import java.util.Objects
-
 // this should be written in Java but it was rewritten to Scala in order to make Scala.js linker happy
 object BuildablePojo {
   def builder(): Builder = new Builder

hocon/src/test/scala/com/avsystem/commons/hocon/HParserTest.scala

@@ -1,4 +1,5 @@
-package com.avsystem.commons.hocon
+package com.avsystem.commons
+package hocon
 
 import com.avsystem.commons.testutil.FileBasedSuite
 

mongo/jvm/src/main/scala/com/avsystem/commons/mongo/Filter.scala

@@ -54,10 +54,10 @@ object Filter {
     trait CanCompare[BSON <: BsonValue]
     object CanCompare {
       def create[BSON <: BsonValue]: CanCompare[BSON] = new CanCompare[BSON] {}
-      implicit val date = create[BsonDateTime]
-      implicit val int32 = create[BsonInt32]
-      implicit val int64 = create[BsonInt64]
-      implicit val double = create[BsonDouble]
+      implicit val date: CanCompare[BsonDateTime] = create[BsonDateTime]
+      implicit val int32: CanCompare[BsonInt32] = create[BsonInt32]
+      implicit val int64: CanCompare[BsonInt64] = create[BsonInt64]
+      implicit val double: CanCompare[BsonDouble] = create[BsonDouble]
     }
   }
-}
+}

project/Commons.scala

@@ -71,7 +71,7 @@ object Commons extends ProjectGroup("commons") {
       Developer("ghik", "Roman Janusz", "[email protected]", url("https://github.com/ghik")),
     ),
 
-    crossScalaVersions := Seq("2.13.10", "2.12.17"),
+    crossScalaVersions := Seq("2.13.11", "2.12.18"),
     scalaVersion := crossScalaVersions.value.head,
     compileOrder := CompileOrder.Mixed,
 

redis/src/test/scala/com/avsystem/commons/redis/examples/ScriptingExample.scala

@@ -11,7 +11,7 @@ import com.avsystem.commons.redis.protocol.{BulkStringMsg, NullBulkStringMsg}
   * Example which shows how to execute LUA scripts.
   */
 object ScriptingExample extends App {
-  implicit val actorSystem = ActorSystem()
+  implicit val actorSystem: ActorSystem = ActorSystem()
 
   val client = new RedisNodeClient
   val api = RedisApi.Node.Async.StringTyped(client)