Initial import

tree_reference.cpp

@@ -0,0 +1,14 @@
+#include "tree_reference.h"
+
+#if 0
+void TreeReference::addOperand(TreeReference<TreeNode> t) {
+  // At this point, e has been copied.
+  // We can therefore pilfer its node!
+  Node * n = node();
+  pool->move(
+      t->node(),
+      t->next()
+      );
+  node->stealAsOperand(t->node());
+}
+#endif