[C++] Associate global variables with Symbols directly

1 files changed, 2 insertions, 0 deletions

diff --git a/var.h b/var.h
index 5ba5fcb..5fc09fa 100644
--- a/var.h
+++ b/var.h
@@ -179,6 +179,8 @@ class Vars : public unordered_map<Symbol, Var*> {
 
   void Assign(Symbol name, Var* v);
 
+  static void add_used_env_vars(Symbol v);
+
   static const unordered_set<Symbol>& used_env_vars() {
     return used_env_vars_;
   }