+static naRef f_alias(naContext c, naRef me, int argc, naRef* args)
+{
+ NODEARG();
+ SGPropertyNode* al;
+ naRef prop = naVec_get(argv, 0);
+ try {
+ if(naIsString(prop)) al = globals->get_props()->getNode(naStr_data(prop), true);
+ else if(naIsGhost(prop)) al = *(SGPropertyNode_ptr*)naGhost_ptr(prop);
+ else throw string("props.alias() with bad argument");
+ } catch (const string& err) {
+ naRuntimeError(c, (char *)err.c_str());
+ return naNil();
+ }
+ return naNum((*node)->alias(al));
+}
+
+static naRef f_unalias(naContext c, naRef me, int argc, naRef* args)
+{
+ NODENOARG();
+ return naNum((*node)->unalias());
+}
+
+static naRef f_getAliasTarget(naContext c, naRef me, int argc, naRef* args)
+{
+ NODENOARG();
+ return propNodeGhostCreate(c, (*node)->getAliasTarget());
+}
+