Add const to applyVisitor (BehaviorTree#935)

Isarm · web-flow · commit aa085b7e7d3c · 2025-02-25T10:25:12.000+01:00
diff --git a/include/behaviortree_cpp/bt_factory.h b/include/behaviortree_cpp/bt_factory.h
@@ -149,7 +149,7 @@ class Tree
   [[nodiscard]] Blackboard::Ptr rootBlackboard();
 
   //Call the visitor for each node of the tree.
-  void applyVisitor(const std::function<void(const TreeNode*)>& visitor);
+  void applyVisitor(const std::function<void(const TreeNode*)>& visitor) const;
 
   //Call the visitor for each node of the tree.
   void applyVisitor(const std::function<void(TreeNode*)>& visitor);
diff --git a/src/bt_factory.cpp b/src/bt_factory.cpp
@@ -597,7 +597,7 @@ Blackboard::Ptr Tree::rootBlackboard()
   return {};
 }
 
-void Tree::applyVisitor(const std::function<void(const TreeNode*)>& visitor)
+void Tree::applyVisitor(const std::function<void(const TreeNode*)>& visitor) const
 {
   BT::applyRecursiveVisitor(static_cast<const TreeNode*>(rootNode()), visitor);
 }

Original file line number	Diff line number	Diff line change
`@@ -597,7 +597,7 @@ Blackboard::Ptr Tree::rootBlackboard()`
`597`	`597`	`return {};`
`598`	`598`	`}`
`599`	`599`
`600`		`-void Tree::applyVisitor(const std::function<void(const TreeNode*)>& visitor)`
	`600`	`+void Tree::applyVisitor(const std::function<void(const TreeNode*)>& visitor) const`
`601`	`601`	`{`
`602`	`602`	`BT::applyRecursiveVisitor(static_cast<const TreeNode*>(rootNode()), visitor);`
`603`	`603`	`}`