From: Morgan Deters <mdeters@gmail.com>
Date: Mon, 25 Jan 2010 21:10:01 +0000 (+0000)
Subject: scoped node managers
X-Git-Tag: cvc5-1.0.0~9342
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=53b60534fd72480121fa399534517938a5361c57;p=cvc5.git

scoped node managers
---

diff --git a/src/expr/node_manager.h b/src/expr/node_manager.h
index 827c6c1b7..60699eeaf 100644
--- a/src/expr/node_manager.h
+++ b/src/expr/node_manager.h
@@ -53,6 +53,19 @@ public:
   Node mkVar();
 };
 
+
+class NodeManagerScope {
+  NodeManager *d_oldNodeManager;
+
+public:
+  NodeManagerScope(const NodeManager* nm) : d_oldNodeManager(NodeManager::s_current) {
+    NodeManager::s_current = nm;
+  }
+  ~NodeManagerScope() {
+    NodeManager::s_current = d_oldNodeManager;
+  }
+};
+
 }/* CVC4 namespace */
 
 #endif /* __CVC4__EXPR_MANAGER_H */