1 files changed, 7 insertions, 0 deletions
diff --git a/src/item.cc b/src/item.cc
index 5262d1db..17d46652 100644
--- a/src/item.cc
+++ b/src/item.cc
@@ -398,6 +398,13 @@ value_t get_comment(item_t& item)
   }
 }
 
+void item_t::define(const symbol_t::kind_t, const string& name,
+                    expr_t::ptr_op_t def)
+{
+  bind_scope_t bound_scope(*scope_t::default_scope, *this);
+  set_tag(name, def->calc(bound_scope));
+}
+
 expr_t::ptr_op_t item_t::lookup(const symbol_t::kind_t kind,
                                 const string& name)
 {