src/Pure/Thy/thy_syntax.scala
changeset 73340 0ffcad1f6130
parent 73120 c3589f2dff31
child 73344 f5c147654661
--- a/src/Pure/Thy/thy_syntax.scala	Mon Mar 01 20:12:09 2021 +0100
+++ b/src/Pure/Thy/thy_syntax.scala	Mon Mar 01 22:22:12 2021 +0100
@@ -27,7 +27,7 @@
       val visible = new mutable.ListBuffer[Command]
       val visible_overlay = new mutable.ListBuffer[Command]
       @tailrec
-      def check_ranges(ranges: List[Text.Range], commands: Stream[(Command, Text.Offset)])
+      def check_ranges(ranges: List[Text.Range], commands: Stream[(Command, Text.Offset)]): Unit =
       {
         (ranges, commands) match {
           case (range :: more_ranges, (command, offset) #:: more_commands) =>