Clang: implement findUsages with existing index

Functionality is limited to the abilities of
current index which is not updated and is
generated only at project open.
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Change-Id: Id1047f27ad0aafc901f06aa51ad38ceab95eaebb
Reviewed-by: Marco Bubke <marco.bubke@qt.io>
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@qt.io>

1 files changed, 13 insertions, 3 deletions

diff --git a/src/plugins/clangrefactoring/refactoringengine.h b/src/plugins/clangrefactoring/refactoringengine.h
index eaa15ad7d5..5dd1bacd38 100644
--- a/src/plugins/clangrefactoring/refactoringengine.h
+++ b/src/plugins/clangrefactoring/refactoringengine.h
@@ -25,7 +25,9 @@
 
 #pragma once
 
-#include <filepathcachingfwd.h>
+#include "symbolqueryinterface.h"
+
+#include <clangsupport/filepathcachingfwd.h>
 
 #include <cpptools/refactoringengineinterface.h>
 
@@ -41,25 +43,33 @@ class RefactoringEngine : public CppTools::RefactoringEngineInterface
 public:
     RefactoringEngine(ClangBackEnd::RefactoringServerInterface &m_server,
                       ClangBackEnd::RefactoringClientInterface &m_client,
-                      ClangBackEnd::FilePathCachingInterface &filePathCache);
+                      ClangBackEnd::FilePathCachingInterface &filePathCache,
+                      SymbolQueryInterface &symbolQuery);
+    ~RefactoringEngine() override;
 
     void startLocalRenaming(const CppTools::CursorInEditor &data,
                             CppTools::ProjectPart *projectPart,
                             RenameCallback &&renameSymbolsCallback) override;
     void startGlobalRenaming(const CppTools::CursorInEditor &data) override;
+    void findUsages(const CppTools::CursorInEditor &data,
+                    CppTools::UsagesCallback &&showUsagesCallback) const override;
 
     bool isRefactoringEngineAvailable() const override;
     void setRefactoringEngineAvailable(bool isAvailable);
 
-    ClangBackEnd::FilePathCachingInterface &filePathCache()
+    const ClangBackEnd::FilePathCachingInterface &filePathCache() const
     {
         return m_filePathCache;
     }
 
 private:
+    CppTools::Usages locationsAt(const CppTools::CursorInEditor &data) const;
+
     ClangBackEnd::RefactoringServerInterface &m_server;
     ClangBackEnd::RefactoringClientInterface &m_client;
     ClangBackEnd::FilePathCachingInterface &m_filePathCache;
+
+    SymbolQueryInterface &m_symbolQuery;
 };
 
 } // namespace ClangRefactoring