1 files changed, 6 insertions, 1 deletions
diff --git a/src/modules.js b/src/modules.js
index d4d86510..325730dd 100644
--- a/src/modules.js
+++ b/src/modules.js
@@ -240,12 +240,17 @@ var Functions = {
 
   // Mark a function as needing indexing. Python will coordinate them all
   getIndex: function(ident, doNotCreate) {
+    if (doNotCreate && !(ident in this.indexedFunctions)) {
+      if (!Functions.getIndex.tentative) Functions.getIndex.tentative = {}; // only used by GL emulation; TODO: generalize when needed
+      Functions.getIndex.tentative[ident] = 0;
+    }
     if (phase != 'post' && singlePhase) {
       if (!doNotCreate) this.indexedFunctions[ident] = 0; // tell python we need this indexized
-      return '{{{ FI_' + ident + ' }}}'; // something python will replace later
+      return '"{{ FI_' + ident + ' }}"'; // something python will replace later
     } else {
       var ret = this.indexedFunctions[ident];
       if (!ret) {
+        if (doNotCreate) return '0';
         ret = this.nextIndex;
         this.nextIndex += 2; // Need to have indexes be even numbers, see |polymorph| test
         this.indexedFunctions[ident] = ret;