Bump Dotty version to Scala 3.0.0-M1/Remove workaround/Correct extensions syntax

eloots · eloots · commit 5fd315a440ac · 2020-11-09T07:59:47.000+01:00
- Dotty 0.27.0-RC1 broke logging calls due to [Ambiguous overload between varargs and non-varargs #9688](scala/scala3#9688) which was fixed in [Fix vararg overloading #9732](scala/scala3#9732) - Remove a few remaining extension methods that still used an 'older' extension mothod syntax
diff --git a/.gitignore b/.gitignore
@@ -9,10 +9,11 @@ collectedLogs.zip
 .vscode
 *.code-workspace
 
-# Metals/Bloop specific
+# Metals/Bloop/sbt BSP specific
 .bloop/
 .metals/
 .swp
+.bsp
 **/project/metals.sbt
 
 # sbt specific
diff --git a/exercises/exercise_000_sudoku_solver_initial_state/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuProgressTracker.scala b/exercises/exercise_000_sudoku_solver_initial_state/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuProgressTracker.scala
@@ -40,8 +40,7 @@ class SudokuProgressTracker private (
       case NewUpdatesInFlight(updateCount) =>
         trackProgress(updatesInFlight + updateCount)
       case msg: SudokuDetailState =>
-        // context.log.error("Received unexpected message in state 'trackProgress': {}", msg)
-        context.log.error(s"Received unexpected message in state 'trackProgress': ${msg}")
+        context.log.error("Received unexpected message in state 'trackProgress': {}", msg)
         Behaviors.same
     }
 
@@ -59,8 +58,7 @@ class SudokuProgressTracker private (
       case detail: SudokuDetailState =>
         collectEndState(remainingRows = remainingRows - 1, detail +: endState)
       case msg: NewUpdatesInFlight =>
-        // context.log.error("Received unexpected message in state 'collectEndState': {}", msg)
-        context.log.error(s"Received unexpected message in state 'collectEndState': ${msg}")
+        context.log.error("Received unexpected message in state 'collectEndState': {}", msg)
         Behaviors.same
     }
 }
diff --git a/exercises/exercise_000_sudoku_solver_initial_state/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuSolver.scala b/exercises/exercise_000_sudoku_solver_initial_state/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuSolver.scala
@@ -90,8 +90,7 @@ class SudokuSolver private (context: ActorContext[SudokuSolver.Command],
         progressTracker ! SudokuProgressTracker.NewUpdatesInFlight(rowUpdates.size)
         processRequest(Some(sender), System.currentTimeMillis())
       case unexpectedMsg =>
-        // context.log.error("Received an unexpected message in 'idle' state: {}", unexpectedMsg)
-        context.log.error(s"Received an unexpected message in 'idle' state: ${unexpectedMsg}")
+        context.log.error("Received an unexpected message in 'idle' state: {}", unexpectedMsg)
         Behaviors.same
 
     }
diff --git a/exercises/exercise_001_dotty_deprecated_syntax_rewriting/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuProgressTracker.scala b/exercises/exercise_001_dotty_deprecated_syntax_rewriting/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuProgressTracker.scala
@@ -40,8 +40,7 @@ class SudokuProgressTracker private (
       case NewUpdatesInFlight(updateCount) =>
         trackProgress(updatesInFlight + updateCount)
       case msg: SudokuDetailState =>
-        // context.log.error("Received unexpected message in state 'trackProgress': {}", msg)
-        context.log.error(s"Received unexpected message in state 'trackProgress': ${msg}")
+        context.log.error("Received unexpected message in state 'trackProgress': {}", msg)
         Behaviors.same
     }
 
@@ -59,8 +58,7 @@ class SudokuProgressTracker private (
       case detail: SudokuDetailState =>
         collectEndState(remainingRows = remainingRows - 1, detail +: endState)
       case msg: NewUpdatesInFlight =>
-        // context.log.error("Received unexpected message in state 'collectEndState': {}", msg)
-        context.log.error(s"Received unexpected message in state 'collectEndState': ${msg}")
+        context.log.error("Received unexpected message in state 'collectEndState': {}", msg)
         Behaviors.same
     }
 }
diff --git a/exercises/exercise_001_dotty_deprecated_syntax_rewriting/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuSolver.scala b/exercises/exercise_001_dotty_deprecated_syntax_rewriting/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuSolver.scala
@@ -90,8 +90,7 @@ class SudokuSolver private (context: ActorContext[SudokuSolver.Command],
         progressTracker ! SudokuProgressTracker.NewUpdatesInFlight(rowUpdates.size)
         processRequest(Some(sender), System.currentTimeMillis())
       case unexpectedMsg =>
-        // context.log.error("Received an unexpected message in 'idle' state: {}", unexpectedMsg)
-        context.log.error(s"Received an unexpected message in 'idle' state: ${unexpectedMsg}")
+        context.log.error("Received an unexpected message in 'idle' state: {}", unexpectedMsg)
         Behaviors.same
 
     }
diff --git a/exercises/exercise_002_dotty_new_syntax_and_indentation_based_syntax/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuProgressTracker.scala b/exercises/exercise_002_dotty_new_syntax_and_indentation_based_syntax/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuProgressTracker.scala
@@ -40,8 +40,7 @@ class SudokuProgressTracker private (
       case NewUpdatesInFlight(updateCount) =>
         trackProgress(updatesInFlight + updateCount)
       case msg: SudokuDetailState =>
-        // context.log.error("Received unexpected message in state 'trackProgress': {}", msg)
-        context.log.error(s"Received unexpected message in state 'trackProgress': ${msg}")
+        context.log.error("Received unexpected message in state 'trackProgress': {}", msg)
         Behaviors.same
     }
 
@@ -59,8 +58,7 @@ class SudokuProgressTracker private (
       case detail: SudokuDetailState =>
         collectEndState(remainingRows = remainingRows - 1, detail +: endState)
       case msg: NewUpdatesInFlight =>
-        // context.log.error("Received unexpected message in state 'collectEndState': {}", msg)
-        context.log.error(s"Received unexpected message in state 'collectEndState': ${msg}")
+        context.log.error("Received unexpected message in state 'collectEndState': {}", msg)
         Behaviors.same
     }
 }
diff --git a/exercises/exercise_002_dotty_new_syntax_and_indentation_based_syntax/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuSolver.scala b/exercises/exercise_002_dotty_new_syntax_and_indentation_based_syntax/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuSolver.scala
@@ -90,8 +90,7 @@ class SudokuSolver private (context: ActorContext[SudokuSolver.Command],
         progressTracker ! SudokuProgressTracker.NewUpdatesInFlight(rowUpdates.size)
         processRequest(Some(sender), System.currentTimeMillis())
       case unexpectedMsg =>
-        // context.log.error("Received an unexpected message in 'idle' state: {}", unexpectedMsg)
-        context.log.error(s"Received an unexpected message in 'idle' state: ${unexpectedMsg}")
+        context.log.error("Received an unexpected message in 'idle' state: {}", unexpectedMsg)
         Behaviors.same
 
     }
diff --git a/exercises/exercise_003_top_level_definitions/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuProgressTracker.scala b/exercises/exercise_003_top_level_definitions/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuProgressTracker.scala
@@ -39,8 +39,7 @@ class SudokuProgressTracker private (
       case NewUpdatesInFlight(updateCount) =>
         trackProgress(updatesInFlight + updateCount)
       case msg: SudokuDetailState =>
-        // context.log.error("Received unexpected message in state 'trackProgress': {}", msg)
-        context.log.error(s"Received unexpected message in state 'trackProgress': ${msg}")
+        context.log.error("Received unexpected message in state 'trackProgress': {}", msg)
         Behaviors.same
     }
 
@@ -58,7 +57,6 @@ class SudokuProgressTracker private (
       case detail: SudokuDetailState =>
         collectEndState(remainingRows = remainingRows - 1, detail +: endState)
       case msg: NewUpdatesInFlight =>
-        // context.log.error("Received unexpected message in state 'collectEndState': {}", msg)
-        context.log.error(s"Received unexpected message in state 'collectEndState': ${msg}")
+        context.log.error("Received unexpected message in state 'collectEndState': {}", msg)
         Behaviors.same
     }
diff --git a/exercises/exercise_003_top_level_definitions/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuSolver.scala b/exercises/exercise_003_top_level_definitions/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuSolver.scala
@@ -88,8 +88,7 @@ class SudokuSolver private (context: ActorContext[SudokuSolver.Command],
         progressTracker ! SudokuProgressTracker.NewUpdatesInFlight(rowUpdates.size)
         processRequest(Some(sender), System.currentTimeMillis())
       case unexpectedMsg =>
-        // context.log.error("Received an unexpected message in 'idle' state: {}", unexpectedMsg)
-        context.log.error(s"Received an unexpected message in 'idle' state: ${unexpectedMsg}")
+        context.log.error("Received an unexpected message in 'idle' state: {}", unexpectedMsg)
         Behaviors.same
 
     }
diff --git a/exercises/exercise_004_parameter_untupling/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuProgressTracker.scala b/exercises/exercise_004_parameter_untupling/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuProgressTracker.scala
@@ -38,8 +38,7 @@ class SudokuProgressTracker private (
       case NewUpdatesInFlight(updateCount) =>
         trackProgress(updatesInFlight + updateCount)
       case msg: SudokuDetailState =>
-        // context.log.error("Received unexpected message in state 'trackProgress': {}", msg)
-        context.log.error(s"Received unexpected message in state 'trackProgress': ${msg}")
+        context.log.error("Received unexpected message in state 'trackProgress': {}", msg)
         Behaviors.same
     }
 
@@ -57,7 +56,6 @@ class SudokuProgressTracker private (
       case detail: SudokuDetailState =>
         collectEndState(remainingRows = remainingRows - 1, detail +: endState)
       case msg: NewUpdatesInFlight =>
-        // context.log.error("Received unexpected message in state 'collectEndState': {}", msg)
-        context.log.error(s"Received unexpected message in state 'collectEndState': ${msg}")
+        context.log.error("Received unexpected message in state 'collectEndState': {}", msg)
         Behaviors.same
     }
diff --git a/exercises/exercise_004_parameter_untupling/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuSolver.scala b/exercises/exercise_004_parameter_untupling/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuSolver.scala
@@ -88,8 +88,7 @@ class SudokuSolver private (context: ActorContext[SudokuSolver.Command],
         progressTracker ! SudokuProgressTracker.NewUpdatesInFlight(rowUpdates.size)
         processRequest(Some(sender), System.currentTimeMillis())
       case unexpectedMsg =>
-        // context.log.error("Received an unexpected message in 'idle' state: {}", unexpectedMsg)
-        context.log.error(s"Received an unexpected message in 'idle' state: ${unexpectedMsg}")
+        context.log.error("Received an unexpected message in 'idle' state: {}", unexpectedMsg)
         Behaviors.same
 
     }
diff --git a/exercises/exercise_005_extension_methods/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuProgressTracker.scala b/exercises/exercise_005_extension_methods/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuProgressTracker.scala
@@ -38,8 +38,7 @@ class SudokuProgressTracker private (
       case NewUpdatesInFlight(updateCount) =>
         trackProgress(updatesInFlight + updateCount)
       case msg: SudokuDetailState =>
-        // context.log.error("Received unexpected message in state 'trackProgress': {}", msg)
-        context.log.error(s"Received unexpected message in state 'trackProgress': ${msg}")
+        context.log.error("Received unexpected message in state 'trackProgress': {}", msg)
         Behaviors.same
     }
 
@@ -57,7 +56,6 @@ class SudokuProgressTracker private (
       case detail: SudokuDetailState =>
         collectEndState(remainingRows = remainingRows - 1, detail +: endState)
       case msg: NewUpdatesInFlight =>
-        // context.log.error("Received unexpected message in state 'collectEndState': {}", msg)
-        context.log.error(s"Received unexpected message in state 'collectEndState': ${msg}")
+        context.log.error("Received unexpected message in state 'collectEndState': {}", msg)
         Behaviors.same
     }
diff --git a/exercises/exercise_005_extension_methods/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuSolver.scala b/exercises/exercise_005_extension_methods/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuSolver.scala
@@ -88,8 +88,7 @@ class SudokuSolver private (context: ActorContext[SudokuSolver.Command],
         progressTracker ! SudokuProgressTracker.NewUpdatesInFlight(rowUpdates.size)
         processRequest(Some(sender), System.currentTimeMillis())
       case unexpectedMsg =>
-        // context.log.error("Received an unexpected message in 'idle' state: {}", unexpectedMsg)
-        context.log.error(s"Received an unexpected message in 'idle' state: ${unexpectedMsg}")
+        context.log.error("Received an unexpected message in 'idle' state: {}", unexpectedMsg)
         Behaviors.same
 
     }
diff --git a/exercises/exercise_006_using_and_summon/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuProgressTracker.scala b/exercises/exercise_006_using_and_summon/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuProgressTracker.scala
@@ -38,8 +38,7 @@ class SudokuProgressTracker private (
       case NewUpdatesInFlight(updateCount) =>
         trackProgress(updatesInFlight + updateCount)
       case msg: SudokuDetailState =>
-        // context.log.error("Received unexpected message in state 'trackProgress': {}", msg)
-        context.log.error(s"Received unexpected message in state 'trackProgress': ${msg}")
+        context.log.error("Received unexpected message in state 'trackProgress': {}", msg)
         Behaviors.same
     }
 
@@ -57,7 +56,6 @@ class SudokuProgressTracker private (
       case detail: SudokuDetailState =>
         collectEndState(remainingRows = remainingRows - 1, detail +: endState)
       case msg: NewUpdatesInFlight =>
-        // context.log.error("Received unexpected message in state 'collectEndState': {}", msg)
-        context.log.error(s"Received unexpected message in state 'collectEndState': ${msg}")
+        context.log.error("Received unexpected message in state 'collectEndState': {}", msg)
         Behaviors.same
     }
diff --git a/exercises/exercise_006_using_and_summon/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuSolver.scala b/exercises/exercise_006_using_and_summon/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuSolver.scala
@@ -88,8 +88,7 @@ class SudokuSolver private (context: ActorContext[SudokuSolver.Command],
         progressTracker ! SudokuProgressTracker.NewUpdatesInFlight(rowUpdates.size)
         processRequest(Some(sender), System.currentTimeMillis())
       case unexpectedMsg =>
-        // context.log.error("Received an unexpected message in 'idle' state: {}", unexpectedMsg)
-        context.log.error(s"Received an unexpected message in 'idle' state: ${unexpectedMsg}")
+        context.log.error("Received an unexpected message in 'idle' state: {}", unexpectedMsg)
         Behaviors.same
 
     }
diff --git a/exercises/exercise_007_givens/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuProgressTracker.scala b/exercises/exercise_007_givens/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuProgressTracker.scala
@@ -38,8 +38,7 @@ class SudokuProgressTracker private (
       case NewUpdatesInFlight(updateCount) =>
         trackProgress(updatesInFlight + updateCount)
       case msg: SudokuDetailState =>
-        // context.log.error("Received unexpected message in state 'trackProgress': {}", msg)
-        context.log.error(s"Received unexpected message in state 'trackProgress': ${msg}")
+        context.log.error("Received unexpected message in state 'trackProgress': {}", msg)
         Behaviors.same
     }
 
@@ -57,7 +56,6 @@ class SudokuProgressTracker private (
       case detail: SudokuDetailState =>
         collectEndState(remainingRows = remainingRows - 1, detail +: endState)
       case msg: NewUpdatesInFlight =>
-        // context.log.error("Received unexpected message in state 'collectEndState': {}", msg)
-        context.log.error(s"Received unexpected message in state 'collectEndState': ${msg}")
+        context.log.error("Received unexpected message in state 'collectEndState': {}", msg)
         Behaviors.same
     }
diff --git a/exercises/exercise_007_givens/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuSolver.scala b/exercises/exercise_007_givens/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuSolver.scala
@@ -88,8 +88,7 @@ class SudokuSolver private (context: ActorContext[SudokuSolver.Command],
         progressTracker ! SudokuProgressTracker.NewUpdatesInFlight(rowUpdates.size)
         processRequest(Some(sender), System.currentTimeMillis())
       case unexpectedMsg =>
-        // context.log.error("Received an unexpected message in 'idle' state: {}", unexpectedMsg)
-        context.log.error(s"Received an unexpected message in 'idle' state: ${unexpectedMsg}")
+        context.log.error("Received an unexpected message in 'idle' state: {}", unexpectedMsg)
         Behaviors.same
 
     }
diff --git a/exercises/exercise_008_enum_and_export/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuProgressTracker.scala b/exercises/exercise_008_enum_and_export/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuProgressTracker.scala
@@ -41,8 +41,7 @@ class SudokuProgressTracker private (
       case NewUpdatesInFlight(updateCount) =>
         trackProgress(updatesInFlight + updateCount)
       case msg: SudokuDetailState =>
-        // context.log.error("Received unexpected message in state 'trackProgress': {}", msg)
-        context.log.error(s"Received unexpected message in state 'trackProgress': ${msg}")
+        context.log.error("Received unexpected message in state 'trackProgress': {}", msg)
         Behaviors.same
     }
 
@@ -60,7 +59,6 @@ class SudokuProgressTracker private (
       case detail: SudokuDetailState =>
         collectEndState(remainingRows = remainingRows - 1, detail +: endState)
       case msg: NewUpdatesInFlight =>
-        // context.log.error("Received unexpected message in state 'collectEndState': {}", msg)
-        context.log.error(s"Received unexpected message in state 'collectEndState': ${msg}")
+        context.log.error("Received unexpected message in state 'collectEndState': {}", msg)
         Behaviors.same
     }
diff --git a/exercises/exercise_008_enum_and_export/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuSolver.scala b/exercises/exercise_008_enum_and_export/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuSolver.scala
@@ -86,8 +86,7 @@ class SudokuSolver private (context: ActorContext[SudokuSolver.Command],
         progressTracker ! SudokuProgressTracker.NewUpdatesInFlight(rowUpdates.size)
         processRequest(Some(sender), System.currentTimeMillis())
       case unexpectedMsg =>
-        // context.log.error("Received an unexpected message in 'idle' state: {}", unexpectedMsg)
-        context.log.error(s"Received an unexpected message in 'idle' state: ${unexpectedMsg}")
+        context.log.error("Received an unexpected message in 'idle' state: {}", unexpectedMsg)
         Behaviors.same
 
     }
diff --git a/exercises/exercise_009_union_types/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuProgressTracker.scala b/exercises/exercise_009_union_types/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuProgressTracker.scala
@@ -41,8 +41,7 @@ class SudokuProgressTracker private (
       case NewUpdatesInFlight(updateCount) =>
         trackProgress(updatesInFlight + updateCount)
       case msg: SudokuDetailState =>
-        // context.log.error("Received unexpected message in state 'trackProgress': {}", msg)
-        context.log.error(s"Received unexpected message in state 'trackProgress': ${msg}")
+        context.log.error("Received unexpected message in state 'trackProgress': {}", msg)
         Behaviors.same
     }
 
@@ -60,7 +59,6 @@ class SudokuProgressTracker private (
       case detail: SudokuDetailState =>
         collectEndState(remainingRows = remainingRows - 1, detail +: endState)
       case msg: NewUpdatesInFlight =>
-        // context.log.error("Received unexpected message in state 'collectEndState': {}", msg)
-        context.log.error(s"Received unexpected message in state 'collectEndState': ${msg}")
+        context.log.error("Received unexpected message in state 'collectEndState': {}", msg)
         Behaviors.same
     }
diff --git a/exercises/exercise_009_union_types/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuSolver.scala b/exercises/exercise_009_union_types/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuSolver.scala
@@ -80,8 +80,7 @@ class SudokuSolver private (context: ActorContext[SudokuSolver.CommandAndRespons
         progressTracker ! SudokuProgressTracker.NewUpdatesInFlight(rowUpdates.size)
         processRequest(Some(sender), System.currentTimeMillis())
       case unexpectedMsg =>
-        // context.log.error("Received an unexpected message in 'idle' state: {}", unexpectedMsg)
-        context.log.error(s"Received an unexpected message in 'idle' state: ${unexpectedMsg}")
+        context.log.error("Received an unexpected message in 'idle' state: {}", unexpectedMsg)
         Behaviors.same
 
     }
diff --git a/exercises/exercise_010_opaque_type_aliases/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuProgressTracker.scala b/exercises/exercise_010_opaque_type_aliases/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuProgressTracker.scala
@@ -41,8 +41,7 @@ class SudokuProgressTracker private (
       case NewUpdatesInFlight(updateCount) =>
         trackProgress(updatesInFlight + updateCount)
       case msg: SudokuDetailState =>
-        // context.log.error("Received unexpected message in state 'trackProgress': {}", msg)
-        context.log.error(s"Received unexpected message in state 'trackProgress': ${msg}")
+        context.log.error("Received unexpected message in state 'trackProgress': {}", msg)
         Behaviors.same
     }
 
@@ -60,7 +59,6 @@ class SudokuProgressTracker private (
       case detail: SudokuDetailState =>
         collectEndState(remainingRows = remainingRows - 1, detail +: endState)
       case msg: NewUpdatesInFlight =>
-        // context.log.error("Received unexpected message in state 'collectEndState': {}", msg)
-        context.log.error(s"Received unexpected message in state 'collectEndState': ${msg}")
+        context.log.error("Received unexpected message in state 'collectEndState': {}", msg)
         Behaviors.same
     }
diff --git a/exercises/exercise_010_opaque_type_aliases/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuSolver.scala b/exercises/exercise_010_opaque_type_aliases/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuSolver.scala
@@ -80,8 +80,7 @@ class SudokuSolver private (context: ActorContext[SudokuSolver.CommandAndRespons
         progressTracker ! SudokuProgressTracker.NewUpdatesInFlight(rowUpdates.size)
         processRequest(Some(sender), System.currentTimeMillis())
       case unexpectedMsg =>
-        // context.log.error("Received an unexpected message in 'idle' state: {}", unexpectedMsg)
-        context.log.error(s"Received an unexpected message in 'idle' state: ${unexpectedMsg}")
+        context.log.error("Received an unexpected message in 'idle' state: {}", unexpectedMsg)
         Behaviors.same
 
     }
diff --git a/exercises/exercise_010_opaque_type_aliases/src/main/scala/org/lunatechlabs/dotty/sudoku/TopLevelDefinitions.scala b/exercises/exercise_010_opaque_type_aliases/src/main/scala/org/lunatechlabs/dotty/sudoku/TopLevelDefinitions.scala
@@ -30,7 +30,8 @@ extension[A] (updates: CellUpdates)
 
   def size: Int = updates.size
 
-def (update: (Int, Set[Int])) +: (updates: CellUpdates): CellUpdates = update +: updates
+extension (update: (Int, Set[Int]))
+  def +: (updates: CellUpdates): CellUpdates = update +: updates
 
 import SudokuDetailProcessor.RowUpdate
 
diff --git a/exercises/exercise_011_multiversal_equality/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuProgressTracker.scala b/exercises/exercise_011_multiversal_equality/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuProgressTracker.scala
@@ -41,8 +41,7 @@ class SudokuProgressTracker private (
       case NewUpdatesInFlight(updateCount) =>
         trackProgress(updatesInFlight + updateCount)
       case msg: SudokuDetailState =>
-        // context.log.error("Received unexpected message in state 'trackProgress': {}", msg)
-        context.log.error(s"Received unexpected message in state 'trackProgress': ${msg}")
+        context.log.error("Received unexpected message in state 'trackProgress': {}", msg)
         Behaviors.same
     }
 
@@ -60,7 +59,6 @@ class SudokuProgressTracker private (
       case detail: SudokuDetailState =>
         collectEndState(remainingRows = remainingRows - 1, detail +: endState)
       case msg: NewUpdatesInFlight =>
-        // context.log.error("Received unexpected message in state 'collectEndState': {}", msg)
-        context.log.error(s"Received unexpected message in state 'collectEndState': ${msg}")
+        context.log.error("Received unexpected message in state 'collectEndState': {}", msg)
         Behaviors.same
     }
diff --git a/exercises/exercise_011_multiversal_equality/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuSolver.scala b/exercises/exercise_011_multiversal_equality/src/main/scala/org/lunatechlabs/dotty/sudoku/SudokuSolver.scala
@@ -80,8 +80,7 @@ class SudokuSolver private (context: ActorContext[SudokuSolver.CommandAndRespons
         progressTracker ! SudokuProgressTracker.NewUpdatesInFlight(rowUpdates.size)
         processRequest(Some(sender), System.currentTimeMillis())
       case unexpectedMsg =>
-        // context.log.error("Received an unexpected message in 'idle' state: {}", unexpectedMsg)
-        context.log.error(s"Received an unexpected message in 'idle' state: ${unexpectedMsg}")
+        context.log.error("Received an unexpected message in 'idle' state: {}", unexpectedMsg)
         Behaviors.same
 
     }
diff --git a/exercises/exercise_011_multiversal_equality/src/main/scala/org/lunatechlabs/dotty/sudoku/TopLevelDefinitions.scala b/exercises/exercise_011_multiversal_equality/src/main/scala/org/lunatechlabs/dotty/sudoku/TopLevelDefinitions.scala
diff --git a/exercises/project/Dependencies.scala b/exercises/project/Dependencies.scala
diff --git a/exercises/project/build.properties b/exercises/project/build.properties
diff --git a/exercises/project/plugins.sbt b/exercises/project/plugins.sbt

Original file line number	Diff line number	Diff line change
`@@ -40,8 +40,7 @@ class SudokuProgressTracker private (`
`40`	`40`	`case NewUpdatesInFlight(updateCount) =>`
`41`	`41`	`trackProgress(updatesInFlight + updateCount)`
`42`	`42`	`case msg: SudokuDetailState =>`
`43`		`- // context.log.error("Received unexpected message in state 'trackProgress': {}", msg)`
`44`		`- context.log.error(s"Received unexpected message in state 'trackProgress': ${msg}")`
	`43`	`+ context.log.error("Received unexpected message in state 'trackProgress': {}", msg)`
`45`	`44`	`Behaviors.same`
`46`	`45`	`}`
`47`	`46`
`@@ -59,8 +58,7 @@ class SudokuProgressTracker private (`
`59`	`58`	`case detail: SudokuDetailState =>`
`60`	`59`	`collectEndState(remainingRows = remainingRows - 1, detail +: endState)`
`61`	`60`	`case msg: NewUpdatesInFlight =>`
`62`		`- // context.log.error("Received unexpected message in state 'collectEndState': {}", msg)`
`63`		`- context.log.error(s"Received unexpected message in state 'collectEndState': ${msg}")`
	`61`	`+ context.log.error("Received unexpected message in state 'collectEndState': {}", msg)`
`64`	`62`	`Behaviors.same`
`65`	`63`	`}`
`66`	`64`	`}`
Original file line number	Diff line number	Diff line change
`@@ -90,8 +90,7 @@ class SudokuSolver private (context: ActorContext[SudokuSolver.Command],`
`90`	`90`	`progressTracker ! SudokuProgressTracker.NewUpdatesInFlight(rowUpdates.size)`
`91`	`91`	`processRequest(Some(sender), System.currentTimeMillis())`
`92`	`92`	`case unexpectedMsg =>`
`93`		`- // context.log.error("Received an unexpected message in 'idle' state: {}", unexpectedMsg)`
`94`		`- context.log.error(s"Received an unexpected message in 'idle' state: ${unexpectedMsg}")`
	`93`	`+ context.log.error("Received an unexpected message in 'idle' state: {}", unexpectedMsg)`
`95`	`94`	`Behaviors.same`
`96`	`95`
`97`	`96`	`}`
Original file line number	Diff line number	Diff line change
`@@ -88,8 +88,7 @@ class SudokuSolver private (context: ActorContext[SudokuSolver.Command],`
`88`	`88`	`progressTracker ! SudokuProgressTracker.NewUpdatesInFlight(rowUpdates.size)`
`89`	`89`	`processRequest(Some(sender), System.currentTimeMillis())`
`90`	`90`	`case unexpectedMsg =>`
`91`		`- // context.log.error("Received an unexpected message in 'idle' state: {}", unexpectedMsg)`
`92`		`- context.log.error(s"Received an unexpected message in 'idle' state: ${unexpectedMsg}")`
	`91`	`+ context.log.error("Received an unexpected message in 'idle' state: {}", unexpectedMsg)`
`93`	`92`	`Behaviors.same`
`94`	`93`
`95`	`94`	`}`
Original file line number	Diff line number	Diff line change
`@@ -86,8 +86,7 @@ class SudokuSolver private (context: ActorContext[SudokuSolver.Command],`
`86`	`86`	`progressTracker ! SudokuProgressTracker.NewUpdatesInFlight(rowUpdates.size)`
`87`	`87`	`processRequest(Some(sender), System.currentTimeMillis())`
`88`	`88`	`case unexpectedMsg =>`
`89`		`- // context.log.error("Received an unexpected message in 'idle' state: {}", unexpectedMsg)`
`90`		`- context.log.error(s"Received an unexpected message in 'idle' state: ${unexpectedMsg}")`
	`89`	`+ context.log.error("Received an unexpected message in 'idle' state: {}", unexpectedMsg)`
`91`	`90`	`Behaviors.same`
`92`	`91`
`93`	`92`	`}`
Original file line number	Diff line number	Diff line change
`@@ -80,8 +80,7 @@ class SudokuSolver private (context: ActorContext[SudokuSolver.CommandAndRespons`
`80`	`80`	`progressTracker ! SudokuProgressTracker.NewUpdatesInFlight(rowUpdates.size)`
`81`	`81`	`processRequest(Some(sender), System.currentTimeMillis())`
`82`	`82`	`case unexpectedMsg =>`
`83`		`- // context.log.error("Received an unexpected message in 'idle' state: {}", unexpectedMsg)`
`84`		`- context.log.error(s"Received an unexpected message in 'idle' state: ${unexpectedMsg}")`
	`83`	`+ context.log.error("Received an unexpected message in 'idle' state: {}", unexpectedMsg)`
`85`	`84`	`Behaviors.same`
`86`	`85`
`87`	`86`	`}`