--- 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) =>