1 files changed, 26 insertions, 9 deletions
diff --git a/src/path-search-result.hpp b/src/path-search-result.hpp
index 7e3f30a7..ea00cd85 100644
--- a/src/path-search-result.hpp
+++ b/src/path-search-result.hpp
@@ -1,5 +1,6 @@
 #pragma once
 #include "src/global-coords.hpp"
+#include <memory>
 #include <vector>
 
 namespace floormat {
@@ -7,10 +8,7 @@ namespace floormat {
 struct path_search_result final
 {
     friend class path_search;
-
-    path_search_result();
-    path_search_result(ArrayView<const global_coords> array);
-    path_search_result(const path_search_result& other);
+    friend struct test_app;
 
     const global_coords* data() const;
     const global_coords& operator[](size_t index) const;
@@ -19,14 +17,33 @@ struct path_search_result final
     explicit operator ArrayView<const global_coords>() const;
     explicit operator bool() const;
 
-    const global_coords* begin() const;
-    const global_coords* end() const;
-
 private:
+    fm_DECLARE_DEFAULT_MOVE_ASSIGNMENT_(path_search_result);
+    path_search_result(const path_search_result& x) noexcept;
+    path_search_result& operator=(const path_search_result& x) noexcept;
+
     static constexpr size_t min_length = TILE_MAX_DIM*2;
 
-    path_search_result* _next;
-    std::vector<global_coords> _path;
+    struct node
+    {
+        friend struct path_search_result;
+
+        node() noexcept;
+        fm_DECLARE_DELETED_COPY_ASSIGNMENT(node);
+        fm_DECLARE_DEFAULT_MOVE_ASSIGNMENT_(node);
+
+        std::vector<global_coords> vec;
+
+    private:
+        std::unique_ptr<node> _next;
+    };
+
+    static std::unique_ptr<node> _pool; // NOLINT(*-avoid-non-const-global-variables)
+
+    path_search_result();
+    ~path_search_result() noexcept;
+
+    std::unique_ptr<node> _node;
 };
 
 } // namespace floormat