* scm/define-context-properties.scm

[lilypond.git] / lily / directional-element-interface.cc

diff --git a/lily/directional-element-interface.cc b/lily/directional-element-interface.cc
index 3d7514cad624b7940e73c85f6fdd3fc718169f69..872f3ad23fb059b3ae0a1f5083e8cb676e772c30 100644 (file)
--- a/lily/directional-element-interface.cc
+++ b/lily/directional-element-interface.cc
@@ -7,11 +7,17 @@
 */
 
 #include "directional-element-interface.hh"
+#include "warn.hh"
 
 Direction
 get_grob_direction (Grob *me)
 {
   SCM d = me->get_property ("direction");
+  if (d == ly_symbol2scm ("calculation-in-progress"))
+    {
+      programming_error ("Grob direction requested while calculation in progress. ");
+      return UP;
+    }
   if (!is_direction (d))
     return CENTER;