1 files changed, 101 insertions, 0 deletions
diff --git a/include/lldb/DataFormatters/FormatCache.h b/include/lldb/DataFormatters/FormatCache.h
new file mode 100644
index 000000000000..941b96c1facc
--- /dev/null
+++ b/include/lldb/DataFormatters/FormatCache.h
@@ -0,0 +1,101 @@
+//===-- FormatCache.h ---------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef lldb_FormatCache_h_
+#define lldb_FormatCache_h_
+
+// C Includes
+// C++ Includes
+#include <map>
+
+// Other libraries and framework includes
+// Project includes
+#include "lldb/lldb-public.h"
+#include "lldb/Core/ConstString.h"
+#include "lldb/DataFormatters/FormatClasses.h"
+
+namespace lldb_private {
+class FormatCache
+{
+private:
+    struct Entry
+    {
+    private:
+        bool m_summary_cached : 1;
+        bool m_synthetic_cached : 1;
+        
+        lldb::TypeSummaryImplSP m_summary_sp;
+        lldb::SyntheticChildrenSP m_synthetic_sp;
+    public:
+        Entry ();
+        Entry (lldb::TypeSummaryImplSP);
+        Entry (lldb::SyntheticChildrenSP);
+        Entry (lldb::TypeSummaryImplSP,lldb::SyntheticChildrenSP);
+
+        bool
+        IsSummaryCached ();
+        
+        bool
+        IsSyntheticCached ();
+        
+        lldb::TypeSummaryImplSP
+        GetSummary ();
+        
+        lldb::SyntheticChildrenSP
+        GetSynthetic ();
+        
+        void
+        SetSummary (lldb::TypeSummaryImplSP);
+        
+        void
+        SetSynthetic (lldb::SyntheticChildrenSP);
+    };
+    typedef std::map<ConstString,Entry> CacheMap;
+    CacheMap m_map;
+    Mutex m_mutex;
+    
+    uint64_t m_cache_hits;
+    uint64_t m_cache_misses;
+    
+    Entry&
+    GetEntry (const ConstString& type);
+    
+public:
+    FormatCache ();
+    
+    bool
+    GetSummary (const ConstString& type,lldb::TypeSummaryImplSP& summary_sp);
+
+    bool
+    GetSynthetic (const ConstString& type,lldb::SyntheticChildrenSP& synthetic_sp);
+    
+    void
+    SetSummary (const ConstString& type,lldb::TypeSummaryImplSP& summary_sp);
+    
+    void
+    SetSynthetic (const ConstString& type,lldb::SyntheticChildrenSP& synthetic_sp);
+    
+    void
+    Clear ();
+    
+    uint64_t
+    GetCacheHits ()
+    {
+        return m_cache_hits;
+    }
+    
+    uint64_t
+    GetCacheMisses ()
+    {
+        return m_cache_misses;
+    }
+};
+} // namespace lldb_private
+
+#endif	// lldb_FormatCache_h_