Fix non-exhaustiveness warning using IllegalArgumentException

sim642 · Nov 19, 2023 · d4e6caf · d4e6caf
1 parent 0589719
commit d4e6caf
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/src/main/scala/eu/sim642/adventofcode2022/Day21.scala b/src/main/scala/eu/sim642/adventofcode2022/Day21.scala
@@ -74,6 +74,7 @@ object Day21 {
       .updatedWith(root)({
         // change root to subtraction, so can solve for root == 0
         case Some(Job.Operation(lhs, _, rhs)) => Some(Job.Operation(lhs, Op.Sub, rhs))
+        case _ => throw new IllegalArgumentException("invalid root")
       })
       .removed(humn)
   }