From 952d4a29c3e55d44defa70ab15f0137a51320de2 Mon Sep 17 00:00:00 2001
From: Martin Odersky <odersky@gmail.com>
Date: Mon, 11 Feb 2013 14:44:39 +0100
Subject: Avoiding an unchecked warning in a switch.

---
 src/dotty/tools/dotc/config/Settings.scala | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'src/dotty/tools/dotc')

diff --git a/src/dotty/tools/dotc/config/Settings.scala b/src/dotty/tools/dotc/config/Settings.scala
index bbd6aae80..c1ac1f83a 100644
--- a/src/dotty/tools/dotc/config/Settings.scala
+++ b/src/dotty/tools/dotc/config/Settings.scala
@@ -6,6 +6,7 @@ import scala.util.{ Try, Success, Failure }
 import scala.reflect.internal.util.StringOps
 import reflect.ClassTag
 import core.Contexts._
+import annotation.unchecked
 
 object Settings {
 
@@ -98,7 +99,7 @@ object Settings {
         ArgsSummary(sstate, args, errors :+ msg)
       def missingArg =
         fail(s"missing argument for option $name", args)
-      def doSet(argRest: String) = (implicitly[ClassTag[T]], args) match {
+      def doSet(argRest: String) = ((implicitly[ClassTag[T]], args): @unchecked) match {
         case (BooleanTag, _) =>
           update(true, args)
         case (ListTag, _) =>
-- 
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