1 files changed, 12 insertions, 0 deletions

diff --git a/src/MoonP/ast.hpp b/src/MoonP/ast.hpp
index 8bcfc21..b56cfde 100644
--- a/src/MoonP/ast.hpp
+++ b/src/MoonP/ast.hpp
@@ -399,6 +399,18 @@ public:
                 node->release();
         }
 
+        bool swap(ast_node* node, ast_node* other) {
+                for (auto it = m_objects.begin(); it != m_objects.end(); ++it) {
+                        if (*it == node) {
+                                *it = other;
+                                other->retain();
+                                node->release();
+                                return true;
+                        }
+                }
+                return false;
+        }
+
          const node_container& objects() const {
                 return m_objects;
         }