Make the symbols used in the current editors.

src/plugins/cppeditor/cppeditor.cpp

@@ -830,11 +830,11 @@ void CPPEditor::reformatDocument()
     c.insertText(QString::fromUtf8(str.c_str(), str.length()));
 }
 
-void CPPEditor::findReferences()
+CPlusPlus::Symbol *CPPEditor::findCanonicalSymbol(const QTextCursor &cursor,
+                                                  Document::Ptr doc,
+                                                  const Snapshot &snapshot) const
 {
-    QTextCursor tc = textCursor();
-    m_currentRenameSelection = -1;
-
+    QTextCursor tc = cursor;
     int line, col;
     convertPosition(tc.position(), &line, &col);
     ++col;
@@ -843,10 +843,9 @@ void CPPEditor::findReferences()
 
     ExpressionUnderCursor expressionUnderCursor;
     const QString code = expressionUnderCursor(tc);
-    qDebug() << "code:" << code;
+    // qDebug() << "code:" << code;
 
-    Snapshot snapshot = m_modelManager->snapshot();
-    Document::Ptr doc = snapshot.value(file()->fileName());
+    const QString fileName = const_cast<CPPEditor *>(this)->file()->fileName();
 
     TypeOfExpression typeOfExpression;
     typeOfExpression.setSnapshot(snapshot);
@@ -857,9 +856,47 @@ void CPPEditor::findReferences()
                                                                      lastVisibleSymbol,
                                                                      TypeOfExpression::Preprocess);
 
-    if (Symbol *canonicalSymbol = LookupContext::canonicalSymbol(results)) {
+    Symbol *canonicalSymbol = LookupContext::canonicalSymbol(results);
+    return canonicalSymbol;
+}
+
+void CPPEditor::findReferences()
+{
+    m_currentRenameSelection = -1;
+
+    QList<QTextEdit::ExtraSelection> selections;
+
+    SemanticInfo info = m_lastSemanticInfo;
+
+    if (info.doc) {
+        if (Symbol *canonicalSymbol = findCanonicalSymbol(textCursor(), info.doc, info.snapshot)) {
+            TranslationUnit *unit = info.doc->translationUnit();
+
+            const QList<int> references = m_modelManager->references(canonicalSymbol, info.doc, info.snapshot);
+            foreach (int index, references) {
+                unsigned line, column;
+                unit->getTokenPosition(index, &line, &column);
+
+                if (column)
+                    --column;  // adjust the column position.
+
+                const int len = unit->tokenAt(index).f.length;
+
+                QTextCursor cursor(document()->findBlockByNumber(line - 1));
+                cursor.setPosition(cursor.position() + column);
+                cursor.setPosition(cursor.position() + len, QTextCursor::KeepAnchor);
+
+                QTextEdit::ExtraSelection sel;
+                sel.format = m_occurrencesFormat;
+                sel.cursor = cursor;
+                selections.append(sel);
+            }
+
+            setExtraSelections(CodeSemanticsSelection, selections);
+
             m_modelManager->findReferences(canonicalSymbol);
         }
+    }
 }
 
 void CPPEditor::renameSymbolUnderCursor()
@@ -2015,7 +2052,7 @@ SemanticInfo SemanticHighlighter::semanticInfo(const Source &source)
         doc = source.snapshot.documentFromSource(preprocessedCode, source.fileName);
         doc->check();
 
-        snapshot = source.snapshot.simplified(doc);
+        snapshot = source.snapshot;
     }
 
     Control *control = doc->control();

src/plugins/cppeditor/cppeditor.h

@@ -223,6 +223,10 @@ protected:
 
     bool isInComment(const QTextCursor &cursor) const;
 
+    CPlusPlus::Symbol *findCanonicalSymbol(const QTextCursor &cursor,
+                                           CPlusPlus::Document::Ptr doc,
+                                           const CPlusPlus::Snapshot &snapshot) const;
+
 private Q_SLOTS:
     void updateFileName();
     void jumpToMethod(int index);

src/plugins/cpptools/cppfindreferences.cpp

@@ -67,8 +67,8 @@ namespace {
 struct Process: protected ASTVisitor
 {
 public:
-    Process(QFutureInterface<Core::Utils::FileSearchResult> &future,
-            Document::Ptr doc, const Snapshot &snapshot)
+    Process(Document::Ptr doc, const Snapshot &snapshot,
+            QFutureInterface<Core::Utils::FileSearchResult> *future)
             : ASTVisitor(doc->control()),
               _future(future),
               _doc(doc),
@@ -79,12 +79,14 @@ public:
         _snapshot.insert(_doc);
     }
 
-    void operator()(Symbol *symbol, Identifier *id, AST *ast)
+    QList<int> operator()(Symbol *symbol, Identifier *id, AST *ast)
     {
+        _references.clear();
         _declSymbol = symbol;
         _id = id;
         _exprDoc = Document::create("<references>");
         accept(ast);
+        return _references;
     }
 
 protected:
@@ -123,10 +125,13 @@ protected:
         if (col)
             --col;  // adjust the column position.
 
-        int len = tk.f.length;
+        const int len = tk.f.length;
 
-        _future.reportResult(Core::Utils::FileSearchResult(QDir::toNativeSeparators(_doc->fileName()),
+        if (_future)
+            _future->reportResult(Core::Utils::FileSearchResult(QDir::toNativeSeparators(_doc->fileName()),
                                                                 line, lineText, col, len));
+
+        _references.append(tokenIndex);
     }
 
     bool checkCandidates(const QList<Symbol *> &candidates) const
@@ -351,7 +356,7 @@ protected:
     }
 
 private:
-    QFutureInterface<Core::Utils::FileSearchResult> &_future;
+    QFutureInterface<Core::Utils::FileSearchResult> *_future;
     Identifier *_id; // ### remove me
     Symbol *_declSymbol;
     Document::Ptr _doc;
@@ -361,6 +366,7 @@ private:
     Semantic _sem;
     QList<PostfixExpressionAST *> _postfixExpressionStack;
     QList<QualifiedNameAST *> _qualifiedNameStack;
+    QList<int> _references;
 };
 
 } // end of anonymous namespace
@@ -378,6 +384,28 @@ CppFindReferences::~CppFindReferences()
 {
 }
 
+QList<int> CppFindReferences::references(Symbol *symbol,
+                                         Document::Ptr doc,
+                                         const Snapshot& snapshot) const
+{
+    Identifier *id = 0;
+    if (Identifier *symbolId = symbol->identifier())
+        id = doc->control()->findIdentifier(symbolId->chars(), symbolId->size());
+
+    QList<int> references;
+
+    if (! id)
+        return references;
+
+    TranslationUnit *translationUnit = doc->translationUnit();
+    Q_ASSERT(translationUnit != 0);
+
+    Process process(doc, snapshot, /*future = */ 0);
+    references = process(symbol, id, translationUnit->ast());
+
+    return references;
+}
+
 static void find_helper(QFutureInterface<Core::Utils::FileSearchResult> &future,
                         const QMap<QString, QString> wl,
                         Snapshot snapshot,
@@ -429,7 +457,7 @@ static void find_helper(QFutureInterface<Core::Utils::FileSearchResult> &future,
         if (Identifier *id = control->findIdentifier(symbolId->chars(), symbolId->size())) {
             doc->check();
             TranslationUnit *unit = doc->translationUnit();
-            Process process(future, doc, snapshot);
+            Process process(doc, snapshot, &future);
             process(symbol, id, unit->ast());
         }
     }

src/plugins/cpptools/cppfindreferences.h

@@ -35,16 +35,12 @@
 #include <QtCore/QFuture>
 #include <QtCore/QFutureWatcher>
 #include <utils/filesearch.h>
+#include <cplusplus/CppDocument.h>
 
 namespace Find {
     class SearchResultWindow;
 } // end of namespace Find
 
-namespace CPlusPlus {
-    class Snapshot;
-    class Symbol;
-} // end of namespace CPlusPlus
-
 namespace CppTools {
 namespace Internal {
 
@@ -58,6 +54,10 @@ public:
     CppFindReferences(CppModelManager *modelManager);
     virtual ~CppFindReferences();
 
+    QList<int> references(CPlusPlus::Symbol *symbol,
+                          CPlusPlus::Document::Ptr doc,
+                          const CPlusPlus::Snapshot& snapshot) const;
+
 Q_SIGNALS:
     void changed();
 

src/plugins/cpptools/cppmodelmanager.cpp

@@ -739,6 +739,13 @@ void CppModelManager::removeEditorSupport(AbstractEditorSupport *editorSupport)
     m_addtionalEditorSupport.remove(editorSupport);
 }
 
+QList<int> CppModelManager::references(CPlusPlus::Symbol *symbol,
+                                       CPlusPlus::Document::Ptr doc,
+                                       const CPlusPlus::Snapshot &snapshot)
+{
+    return m_findReferences->references(LookupContext::canonicalSymbol(symbol), doc, snapshot);
+}
+
 void CppModelManager::findReferences(CPlusPlus::Symbol *symbol)
 {
     if (symbol->identifier())

src/plugins/cpptools/cppmodelmanager.h

@@ -102,6 +102,10 @@ public:
     virtual void addEditorSupport(AbstractEditorSupport *editorSupport);
     virtual void removeEditorSupport(AbstractEditorSupport *editorSupport);
 
+    virtual QList<int> references(CPlusPlus::Symbol *symbol,
+                                  CPlusPlus::Document::Ptr doc,
+                                  const CPlusPlus::Snapshot &snapshot);
+
     virtual void findReferences(CPlusPlus::Symbol *symbol);
 
     void setHeaderSuffixes(const QStringList &suffixes)

src/plugins/cpptools/cppmodelmanagerinterface.h

@@ -95,6 +95,10 @@ public:
     virtual void addEditorSupport(AbstractEditorSupport *editorSupport) = 0;
     virtual void removeEditorSupport(AbstractEditorSupport *editorSupport) = 0;
 
+    virtual QList<int> references(CPlusPlus::Symbol *symbol,
+                                  CPlusPlus::Document::Ptr doc,
+                                  const CPlusPlus::Snapshot &snapshot) = 0;
+
     virtual void findReferences(CPlusPlus::Symbol *symbol) = 0;
 };