lib/rbs/errors.rb in rbs-3.6.0.dev.1 vs lib/rbs/errors.rb in rbs-3.6.0.pre.1

@@ -33,10 +33,10 @@
 
       # Support only one line
       return msg unless location.start_line == location.end_line
 
       indent = " " * location.start_column
-      marker = "^" * (location.end_column - location.start_column)
+      marker = "^" * ([location.end_column - location.start_column, 1].max or raise)
 
       io = StringIO.new
       io.puts msg
       io.puts
       io.print "\e[1m" if highlight