From f702ca398df7732044151e995c382373cc35ac12da1d1c1fdc049a7d240ff891 Mon Sep 17 00:00:00 2001
From: ADAM David Alan Martin <adam@recursive.engineer>
Date: Sun, 20 Apr 2025 01:42:39 -0400
Subject: [PATCH] Doctree owns its root node correctly now.

---
 src/doctree.hh | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/src/doctree.hh b/src/doctree.hh
index bf31d10..d463255 100644
--- a/src/doctree.hh
+++ b/src/doctree.hh
@@ -45,19 +45,16 @@ class DoctreeNode {
 class Doctree {
    private:
       DoctreeNode *topNode;
-      DoctreeNode *rootNode;
+      std::unique_ptr< DoctreeNode > rootNode= std::make_unique< DoctreeNode >();
       int num;
 
    public:
       Doctree () {
-         rootNode = new DoctreeNode;
-         topNode = rootNode;
+         topNode = rootNode.get();
          num = 0;
       };
 
-      ~Doctree () {
-         delete rootNode;
-      };
+      ~Doctree ()= default;
 
       DoctreeNode *push () {
          DoctreeNode *dn = new DoctreeNode ();
@@ -70,19 +67,19 @@ class Doctree {
       };
 
       void pop () {
-         assert (topNode != rootNode); // never pop the root node
+         assert (topNode != rootNode.get()); // never pop the root node
          topNode = topNode->parent;
       };
 
       inline DoctreeNode *top () {
-         if (topNode != rootNode)
+         if (topNode != rootNode.get())
             return topNode;
          else
             return NULL;
       };
 
       inline DoctreeNode *parent (const DoctreeNode *node) {
-         if (node->parent != rootNode)
+         if (node->parent != rootNode.get())
             return node->parent;
          else
             return NULL;