X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fgrob-interface-scheme.cc;h=3438f7b3ec3455e0ff0ad0359614b980b3834ded;hb=5db2447d084320c092768bb7c5683f76e10e4a8a;hp=5d5947cbb7a88faac1028dc0f52a6a08249a319c;hpb=a276a19dc6bd57832db3107f2f2cbb04cb4677b6;p=lilypond.git

diff --git a/lily/grob-interface-scheme.cc b/lily/grob-interface-scheme.cc
index 5d5947cbb7..3438f7b3ec 100644
--- a/lily/grob-interface-scheme.cc
+++ b/lily/grob-interface-scheme.cc
@@ -11,13 +11,9 @@
 
 static SCM all_ifaces;
 
-LY_DEFINE (ly_add_interface, "ly:add-interface",
-	   3, 0, 0, (SCM a, SCM b, SCM c),
-	   "Add an interface description.")
+void
+internal_add_interface (SCM a, SCM b, SCM c)
 {
-  SCM_ASSERT_TYPE (scm_is_symbol (a), a, SCM_ARG1, __FUNCTION__, "symbol");
-  SCM_ASSERT_TYPE (scm_is_string (b), b, SCM_ARG2, __FUNCTION__, "string");
-  SCM_ASSERT_TYPE (ly_is_list (c), c, SCM_ARG3, __FUNCTION__, "list of syms");
   if (!all_ifaces)
     {
       SCM tab = scm_c_make_hash_table (59);
@@ -28,6 +24,17 @@ LY_DEFINE (ly_add_interface, "ly:add-interface",
   SCM entry = scm_list_n (a, b, c, SCM_UNDEFINED);
 
   scm_hashq_set_x (all_ifaces, a, entry);
+}
+
+LY_DEFINE (ly_add_interface, "ly:add-interface",
+	   3, 0, 0, (SCM a, SCM b, SCM c),
+	   "Add an interface description.")
+{
+  LY_ASSERT_TYPE (ly_is_symbol, a, 1);
+  LY_ASSERT_TYPE (scm_is_string, b, 2);
+  LY_ASSERT_TYPE (ly_is_list, c, 3);
+
+  internal_add_interface (a,b,c);
 
   return SCM_UNSPECIFIED;
 }