1 files changed, 14 insertions, 0 deletions
diff --git a/src/expr/node_builder.h b/src/expr/node_builder.h
index 5f813dbe8..bd3827f47 100644
--- a/src/expr/node_builder.h
+++ b/src/expr/node_builder.h
@@ -713,6 +713,10 @@ public:
   operator Node();
   operator Node() const;
 
+  // similarly for TypeNode
+  operator TypeNode();
+  operator TypeNode() const;
+
   NodeBuilder<nchild_thresh>& operator&=(TNode);
   NodeBuilder<nchild_thresh>& operator|=(TNode);
   NodeBuilder<nchild_thresh>& operator+=(TNode);
@@ -902,6 +906,16 @@ NodeBuilder<nchild_thresh>::operator Node() const {
 }
 
 template <unsigned nchild_thresh>
+NodeBuilder<nchild_thresh>::operator TypeNode() {
+  return constructTypeNode();
+}
+
+template <unsigned nchild_thresh>
+NodeBuilder<nchild_thresh>::operator TypeNode() const {
+  return constructTypeNode();
+}
+
+template <unsigned nchild_thresh>
 expr::NodeValue* NodeBuilder<nchild_thresh>::constructNV() {
   Assert(!isUsed(), "NodeBuilder is one-shot only; "
          "attempt to access it after conversion");