Clang: use local renaming based on ClangCodeModel

Provide refactoring engine for ClangCodeModel and
implement missing methods.

Change-Id: If5c913e0c5a7941cd2ced54d0fcfa4d625eadc93
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@qt.io>

src/tools/clangbackend/source/clangcodemodelserver.cpp

@@ -261,6 +261,7 @@ void ClangCodeModelServer::requestReferences(const RequestReferencesMessage &mes
 
         JobRequest jobRequest = processor.createJobRequest(JobRequest::Type::RequestReferences);
         fillJobRequest(jobRequest, message);
+        jobRequest.localReferences = message.local();
         processor.addJob(jobRequest);
         processor.process();
     }  catch (const std::exception &exception) {

src/tools/clangbackend/source/clangjobrequest.h

@@ -118,6 +118,7 @@ public:
     qint32 funcNameStartColumn = -1;
     quint64 ticketNumber = 0;
     Utf8StringVector dependentFiles;
+    bool localReferences = false;
 };
 
 using JobRequests = QVector<JobRequest>;

src/tools/clangbackend/source/clangreferencescollector.cpp

@@ -121,7 +121,7 @@ public:
     ReferencesCollector(CXTranslationUnit cxTranslationUnit);
     ~ReferencesCollector();
 
-    ReferencesResult collect(uint line, uint column) const;
+    ReferencesResult collect(uint line, uint column, bool localReferences = false) const;
 
 private:
     bool isWithinTokenRange(CXToken token, uint line, uint column) const;
@@ -207,7 +207,7 @@ bool ReferencesCollector::checkToken(unsigned index, const Utf8String &identifie
     return candidate.usr() == usr;
 }
 
-ReferencesResult ReferencesCollector::collect(uint line, uint column) const
+ReferencesResult ReferencesCollector::collect(uint line, uint column, bool localReferences) const
 {
     ReferencesResult result;
 
@@ -216,11 +216,15 @@ ReferencesResult ReferencesCollector::collect(uint line, uint column) const
         return result;
 
     const Cursor cursorFromUser = m_cxCursors[static_cast<int>(index)];
+
     const ReferencedCursor refCursor = ReferencedCursor::find(cursorFromUser);
     const Utf8String usr = refCursor.usr();
     if (usr.isEmpty())
         return result;
 
+    if (localReferences && !refCursor.isLocalVariable())
+        return result;
+
     const CXToken token = m_cxTokens[index];
     const Utf8String identifier = ClangString(clang_getTokenSpelling(m_cxTranslationUnit, token));
     for (uint i = 0; i < m_cxTokenCount; ++i) {
@@ -239,10 +243,11 @@ ReferencesResult ReferencesCollector::collect(uint line, uint column) const
 
 ReferencesResult collectReferences(CXTranslationUnit cxTranslationUnit,
                                    uint line,
-                                   uint column)
+                                   uint column,
+                                   bool localReferences)
 {
     ReferencesCollector collector(cxTranslationUnit);
-    return collector.collect(line, column);
+    return collector.collect(line, column, localReferences);
 }
 
 } // namespace ClangBackEnd

src/tools/clangbackend/source/clangreferencescollector.h

@@ -54,7 +54,8 @@ public:
 
 ReferencesResult collectReferences(CXTranslationUnit cxTranslationUnit,
                                    uint line,
-                                   uint column);
+                                   uint column,
+                                   bool localReferences = false);
 
 } // namespace ClangBackEnd
 

src/tools/clangbackend/source/clangrequestreferencesjob.cpp

@@ -43,9 +43,10 @@ IAsyncJob::AsyncPrepareResult RequestReferencesJob::prepareAsyncRun()
     const TranslationUnit translationUnit = *m_translationUnit;
     const quint32 line = jobRequest.line;
     const quint32 column = jobRequest.column;
-    setRunner([translationUnit, line, column]() {
+    const bool localReferences = jobRequest.localReferences;
+    setRunner([translationUnit, line, column, localReferences]() {
         TIME_SCOPE_DURATION("RequestReferencesJobRunner");
-        return translationUnit.references(line, column);
+        return translationUnit.references(line, column, localReferences);
     });
 
     return AsyncPrepareResult{translationUnit.id()};

src/tools/clangbackend/source/clangtranslationunit.cpp

@@ -139,9 +139,9 @@ void TranslationUnit::extractDocumentAnnotations(
     skippedSourceRanges = this->skippedSourceRanges().toSourceRangeContainers();
 }
 
-ReferencesResult TranslationUnit::references(uint line, uint column) const
+ReferencesResult TranslationUnit::references(uint line, uint column, bool localReferences) const
 {
-    return collectReferences(m_cxTranslationUnit, line, column);
+    return collectReferences(m_cxTranslationUnit, line, column, localReferences);
 }
 
 DiagnosticSet TranslationUnit::diagnostics() const

src/tools/clangbackend/source/clangtranslationunit.h

@@ -85,7 +85,7 @@ public:
                                     QVector<SourceRangeContainer> &skippedSourceRanges) const;
 
 
-    ReferencesResult references(uint line, uint column) const;
+    ReferencesResult references(uint line, uint column, bool localReferences = false) const;
     DiagnosticSet diagnostics() const;
 
     SourceLocation sourceLocationAt(uint line, uint column) const;