1 files changed, 46 insertions, 0 deletions
diff --git a/search/rank_table_cache.hpp b/search/rank_table_cache.hpp
new file mode 100644
index 0000000000..2332a3a3c1
--- /dev/null
+++ b/search/rank_table_cache.hpp
@@ -0,0 +1,46 @@
+#pragma once
+
+#include "indexer/index.hpp"
+
+#include "base/macros.hpp"
+
+#include "std/map.hpp"
+#include "std/unique_ptr.hpp"
+
+namespace search
+{
+class RankTable;
+
+class RankTableCache
+{
+  using TId = MwmSet::MwmId;
+
+  struct TKey : public MwmSet::MwmHandle
+  {
+    TKey() = default;
+    TKey(TKey &&) = default;
+
+    explicit TKey(TId const & id) { this->m_mwmId = id; }
+    explicit TKey(MwmSet::MwmHandle && handle) : MwmSet::MwmHandle(move(handle)) {}
+  };
+
+public:
+  RankTableCache() = default;
+
+  RankTable const & Get(Index & index, TId const & mwmId);
+
+  void Remove(TId const & id);
+  void Clear();
+
+private:
+  struct Compare
+  {
+    bool operator()(TKey const & r1, TKey const & r2) const { return (r1.GetId() < r2.GetId()); }
+  };
+
+  map<TKey, unique_ptr<RankTable>, Compare> m_ranks;
+
+  DISALLOW_COPY_AND_MOVE(RankTableCache);
+};
+
+}  // namespace search