diff --git a/src/compiler/fzl_walker.c b/src/compiler/fzl_walker.c
index b392576..5ddd728 100644
--- a/src/compiler/fzl_walker.c
+++ b/src/compiler/fzl_walker.c
@@ -203,7 +203,13 @@ fzl_walk_res_t walk(fzl_walker_t *walker, fzl_node_t *node)
   {
     switch (node->type)
     {
-      case FZL_NODETYPE_TYPEDEF:
+      case FZL_NODETYPE_EXTERN:    // TODO: create meta
+      case FZL_NODETYPE_EXTERN_FN: // TODO: write to meta
+      case FZL_NODETYPE_REFERENCE: // TODO: write to meta
+      case FZL_NODETYPE_STRUCT:    // TODO: write to meta
+      case FZL_NODETYPE_ALIAS:     // TODO: write to meta
+      case FZL_NODETYPE_HANDLE:    // TODO: write to meta
+      case FZL_NODETYPE_TYPEDEF:   // TODO: write to meta
         break;
 
       case FZL_NODETYPE_FMT_STRING: