Find references

src/libs/cplusplus/ResolveExpression.cpp

@@ -203,7 +203,9 @@ ResolveExpression::ResolveExpression(const LookupContext &context)
     : ASTVisitor(context.expressionDocument()->control()),
       _context(context),
       sem(_context.control())
-{ }
+{
+    _wantReferences = false;
+}
 
 ResolveExpression::~ResolveExpression()
 { }
@@ -235,6 +237,7 @@ void ResolveExpression::addResult(const FullySpecifiedType &ty, Symbol *symbol)
 void ResolveExpression::addResult(const Result &r)
 {
     Result p = r;
+
     if (! p.second)
         p.second = _context.symbol();
 

src/libs/cplusplus/ResolveExpression.h

@@ -47,6 +47,21 @@ public:
     ResolveExpression(const LookupContext &context);
     virtual ~ResolveExpression();
 
+    bool wantReferences() const
+    { return _wantReferences; }
+
+    void setWantReferences(bool onoff)
+    { _wantReferences = onoff; }
+
+    void setDeclSymbol(Symbol *symbol)
+    {
+        references.clear();
+        _wantReferences = true;
+        _declSymbol = symbol;
+    }
+
+    QList<unsigned> references;
+
     QList<Result> operator()(ExpressionAST *ast);
 
     QList<Result> resolveMemberExpression(const QList<Result> &baseResults,
@@ -123,6 +138,8 @@ private:
     LookupContext _context;
     Semantic sem;
     QList<Result> _results;
+    bool _wantReferences;
+    Symbol *_declSymbol;
 };
 
 class CPLUSPLUS_EXPORT ResolveClass

src/plugins/cppeditor/cppeditor.cpp

@@ -32,6 +32,8 @@
 #include "cppplugin.h"
 #include "cpphighlighter.h"
 
+#include <cpptools/cpptoolsplugin.h>
+
 #include <AST.h>
 #include <Control.h>
 #include <Token.h>
@@ -46,6 +48,7 @@
 #include <SymbolVisitor.h>
 #include <TranslationUnit.h>
 #include <cplusplus/ExpressionUnderCursor.h>
+#include <cplusplus/TypeOfExpression.h>
 #include <cplusplus/LookupContext.h>
 #include <cplusplus/Overview.h>
 #include <cplusplus/OverviewModel.h>
@@ -827,6 +830,51 @@ void CPPEditor::reformatDocument()
     c.insertText(QString::fromUtf8(str.c_str(), str.length()));
 }
 
+void CPPEditor::findReferences()
+{
+    QTextCursor tc = textCursor();
+    m_currentRenameSelection = -1;
+
+    int line, col;
+    convertPosition(tc.position(), &line, &col);
+    ++col;
+
+    tc.movePosition(QTextCursor::EndOfWord);
+
+    ExpressionUnderCursor expressionUnderCursor;
+    const QString code = expressionUnderCursor(tc);
+    qDebug() << "code:" << code;
+
+    Snapshot snapshot = m_modelManager->snapshot();
+    Document::Ptr doc = snapshot.value(file()->fileName());
+
+    TypeOfExpression typeOfExpression;
+    typeOfExpression.setSnapshot(snapshot);
+
+    Symbol *lastVisibleSymbol = doc->findSymbolAt(line, col);
+
+    const QList<TypeOfExpression::Result> results = typeOfExpression(code, doc,
+                                                                     lastVisibleSymbol,
+                                                                     TypeOfExpression::Preprocess);
+
+    if (! results.isEmpty()) {
+        TypeOfExpression::Result result = results.first();
+        Symbol *symbol = result.second;
+        qDebug() << "result:" << symbol->fileName() << symbol->line() << symbol->column();
+        m_modelManager->findReferences(symbol);
+    }
+
+
+#if 0
+        LookupContext context(
+        Overview oo;
+        qDebug() << "==============> filename:" << symbol->fileName()
+                << "name:" << oo(symbol->name());
+        m_modelManager->findReferences(symbol);
+    }
+#endif
+}
+
 void CPPEditor::renameSymbolUnderCursor()
 {
     updateSemanticInfo(m_semanticHighlighter->semanticInfo(currentSource()));

src/plugins/cppeditor/cppeditor.h

@@ -197,6 +197,7 @@ public Q_SLOTS:
     void switchDeclarationDefinition();
     void jumpToDefinition();
     void renameSymbolUnderCursor();
+    void findReferences();
 
     void moveToPreviousToken();
     void moveToNextToken();

src/plugins/cppeditor/cppeditorconstants.h

@@ -39,6 +39,7 @@ const char * const C_CPPEDITOR  = "C++ Editor";
 const char * const CPPEDITOR_KIND = QT_TRANSLATE_NOOP("OpenWith::Editors", "C++ Editor");
 const char * const SWITCH_DECLARATION_DEFINITION = "CppEditor.SwitchDeclarationDefinition";
 const char * const RENAME_SYMBOL_UNDER_CURSOR = "CppEditor.RenameSymbolUnderCursor";
+const char * const FIND_REFERENCES = "CppEditor.FindReferences";
 const char * const JUMP_TO_DEFINITION = "CppEditor.JumpToDefinition";
 
 const char * const HEADER_FILE_TYPE = "CppHeaderFiles";

src/plugins/cppeditor/cppplugin.cpp

@@ -220,6 +220,14 @@ bool CppPlugin::initialize(const QStringList & /*arguments*/, QString *errorMess
     am->actionContainer(CppEditor::Constants::M_CONTEXT)->addAction(cmd);
     am->actionContainer(CppTools::Constants::M_TOOLS_CPP)->addAction(cmd);
 
+    QAction *findReferencesAction = new QAction(tr("Find References"), this);
+    cmd = am->registerAction(findReferencesAction,
+        Constants::FIND_REFERENCES, context);
+    cmd->setDefaultKeySequence(QKeySequence("F3"));
+    connect(findReferencesAction, SIGNAL(triggered()), this, SLOT(findReferences()));
+    am->actionContainer(CppEditor::Constants::M_CONTEXT)->addAction(cmd);
+    am->actionContainer(CppTools::Constants::M_TOOLS_CPP)->addAction(cmd);
+
     m_actionHandler = new TextEditor::TextEditorActionHandler(CppEditor::Constants::C_CPPEDITOR,
         TextEditor::TextEditorActionHandler::Format
         | TextEditor::TextEditorActionHandler::UnCommentSelection
@@ -281,4 +289,12 @@ void CppPlugin::renameSymbolUnderCursor()
         editor->renameSymbolUnderCursor();
 }
 
+void CppPlugin::findReferences()
+{
+    Core::EditorManager *em = Core::EditorManager::instance();
+    CPPEditor *editor = qobject_cast<CPPEditor*>(em->currentEditor()->widget());
+    if (editor)
+        editor->findReferences();
+}
+
 Q_EXPORT_PLUGIN(CppPlugin)

src/plugins/cppeditor/cppplugin.h

@@ -74,6 +74,7 @@ private slots:
     void switchDeclarationDefinition();
     void jumpToDefinition();
     void renameSymbolUnderCursor();
+    void findReferences();
 
 private:
     Core::IEditor *createEditor(QWidget *parent);

src/plugins/cpptools/cppfindreferences.cpp

+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** Commercial Usage
+**
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** GNU Lesser General Public License Usage
+**
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at http://www.qtsoftware.com/contact.
+**
+**************************************************************************/
+
+#include "cppfindreferences.h"
+#include "cppmodelmanager.h"
+#include "cpptoolsconstants.h"
+
+#include <texteditor/basetexteditor.h>
+#include <find/searchresultwindow.h>
+#include <extensionsystem/pluginmanager.h>
+#include <utils/filesearch.h>
+#include <coreplugin/progressmanager/progressmanager.h>
+#include <coreplugin/icore.h>
+
+#include <ASTVisitor.h>
+#include <AST.h>
+#include <Control.h>
+#include <Literals.h>
+#include <TranslationUnit.h>
+#include <Symbols.h>
+
+#include <cplusplus/CppDocument.h>
+#include <cplusplus/ExpressionUnderCursor.h>
+#include <cplusplus/ResolveExpression.h>
+
+#include <QtCore/QTime>
+#include <QtCore/QtConcurrentRun>
+#include <QtCore/QDir>
+
+#include <qtconcurrent/runextensions.h>
+
+using namespace CppTools::Internal;
+using namespace CPlusPlus;
+
+namespace {
+
+struct Process: protected ASTVisitor
+{
+public:
+    Process(QFutureInterface<Core::Utils::FileSearchResult> &future,
+            Document::Ptr doc, const Snapshot &snapshot)
+            : ASTVisitor(doc->control()),
+              _future(future),
+              _doc(doc),
+              _snapshot(snapshot),
+              _source(_doc->source())
+    { }
+
+    void operator()(Identifier *id, AST *ast)
+    {
+        _id = id;
+        _currentSymbol = _doc->globalNamespace();
+        _exprDoc = Document::create("<references>");
+        accept(ast);
+    }
+
+protected:
+    using ASTVisitor::visit;
+
+    QString matchingLine(const Token &tk) const
+    {
+        const char *beg = _source.constData();
+        const char *cp = beg + tk.offset;
+        for (; cp != beg - 1; --cp) {
+            if (*cp == '\n')
+                break;
+        }
+
+        ++cp;
+
+        const char *lineEnd = cp + 1;
+        for (; *lineEnd; ++lineEnd) {
+            if (*lineEnd == '\n')
+                break;
+        }
+
+        const QString matchingLine = QString::fromUtf8(cp, lineEnd - cp);
+        return matchingLine;
+
+    }
+
+    void reportResult(unsigned tokenIndex)
+    {
+        const Token &tk = tokenAt(tokenIndex);
+        const QString lineText = matchingLine(tk);
+
+        unsigned line, col;
+        getTokenStartPosition(tokenIndex, &line, &col);
+
+        if (col)
+            --col;  // adjust the column position.
+
+        int len = tk.f.length;
+
+        _future.reportResult(Core::Utils::FileSearchResult(QDir::toNativeSeparators(_doc->fileName()),
+                                                           line, lineText, col, len));
+    }
+
+    LookupContext currentContext() const
+    {
+        return LookupContext(_currentSymbol, _exprDoc, _doc, _snapshot);
+    }
+
+    virtual bool visit(ClassSpecifierAST *ast)
+    {
+        _currentSymbol = ast->symbol;
+        return true;
+    }
+
+    virtual bool visit(NamespaceAST *ast)
+    {
+        _currentSymbol = ast->symbol;
+        return true;
+    }
+
+    virtual bool visit(CompoundStatementAST *ast)
+    {
+        _currentSymbol = ast->symbol;
+        return true;
+    }
+
+    virtual bool visit(FunctionDefinitionAST *ast)
+    {
+        _currentSymbol = ast->symbol;
+        return true;
+    }
+
+    virtual bool visit(QualifiedNameAST *ast)
+    {
+        return true;
+    }
+
+    virtual bool visit(SimpleNameAST *ast)
+    {
+        Identifier *id = identifier(ast->identifier_token);
+        if (id == _id) {
+#if 0
+            LookupContext context = currentContext();
+            ResolveExpression resolveExpression(context);
+            QList<ResolveExpression::Result> results = resolveExpression(ast);
+            if (! results.isEmpty()) {
+                ResolveExpression::Result result = results.first();
+                Symbol *resolvedSymbol = result.second;
+                qDebug() << "resolves to:" << resolvedSymbol->fileName() << resolvedSymbol->line();
+            }
+#endif
+            reportResult(ast->identifier_token);
+        }
+
+        return false;
+    }
+
+    virtual bool visit(TemplateIdAST *ast)
+    {
+        Identifier *id = identifier(ast->identifier_token);
+        if (id == _id)
+            reportResult(ast->identifier_token);
+
+        return true;
+    }
+
+private:
+    QFutureInterface<Core::Utils::FileSearchResult> &_future;
+    Identifier *_id;
+    Document::Ptr _doc;
+    Snapshot _snapshot;
+    QByteArray _source;
+    Symbol *_currentSymbol;
+    Document::Ptr _exprDoc;
+};
+
+} // end of anonymous namespace
+
+CppFindReferences::CppFindReferences(CppModelManager *modelManager)
+    : _modelManager(modelManager),
+      _resultWindow(ExtensionSystem::PluginManager::instance()->getObject<Find::SearchResultWindow>())
+{
+    m_watcher.setPendingResultsLimit(1);
+    connect(&m_watcher, SIGNAL(resultReadyAt(int)), this, SLOT(displayResult(int)));
+    connect(&m_watcher, SIGNAL(finished()), this, SLOT(searchFinished()));
+}
+
+CppFindReferences::~CppFindReferences()
+{
+}
+
+static void find_helper(QFutureInterface<Core::Utils::FileSearchResult> &future,
+                        QString word,
+                        QString fileName,
+                        Snapshot snapshot)
+{
+    QTime tm;
+    tm.start();
+    QStringList files(fileName);
+    files += snapshot.dependsOn(fileName);
+    qDebug() << "done in:" << tm.elapsed() << "number of files to parse:" << files.size();
+
+    future.setProgressRange(0, files.size());
+
+    tm.start();
+    for (int i = 0; i < files.size(); ++i) {
+        const QString &fn = files.at(i);
+        future.setProgressValueAndText(i, QFileInfo(fn).fileName());
+        QFile f(fn);
+        if (! f.open(QFile::ReadOnly))
+            continue;
+
+        const QString source = QTextStream(&f).readAll();
+        const QByteArray preprocessedCode = snapshot.preprocessedCode(source, fn);
+        Document::Ptr doc = snapshot.documentFromSource(preprocessedCode, fn);
+        doc->check();
+
+        Control *control = doc->control();
+        Identifier *id = control->findOrInsertIdentifier(word.toLatin1().constData());
+
+        TranslationUnit *unit = doc->translationUnit();
+        Process process(future, doc, snapshot);
+        process(id, unit->ast());
+    }
+    future.setProgressValue(files.size());
+}
+
+void CppFindReferences::findAll(const QString &fileName, const QString &text)
+{
+    _resultWindow->clearContents();
+    _resultWindow->popup(true);
+
+    Core::ProgressManager *progressManager = Core::ICore::instance()->progressManager();
+
+    const Snapshot snapshot = _modelManager->snapshot();
+
+    QFuture<Core::Utils::FileSearchResult> result =
+            QtConcurrent::run(&find_helper, text, fileName, snapshot);
+
+    m_watcher.setFuture(result);
+
+    Core::FutureProgress *progress = progressManager->addTask(result, tr("Searching..."),
+                                                              CppTools::Constants::TASK_INDEX,
+                                                              Core::ProgressManager::CloseOnSuccess);
+
+    connect(progress, SIGNAL(clicked()), _resultWindow, SLOT(popup()));
+}
+
+void CppFindReferences::displayResult(int index)
+{
+    Core::Utils::FileSearchResult result = m_watcher.future().resultAt(index);
+    Find::ResultWindowItem *item = _resultWindow->addResult(result.fileName,
+                                                            result.lineNumber,
+                                                            result.matchingLine,
+                                                            result.matchStart,
+                                                            result.matchLength);
+    if (item)
+        connect(item, SIGNAL(activated(const QString&,int,int)),
+                this, SLOT(openEditor(const QString&,int,int)));
+}
+
+void CppFindReferences::searchFinished()
+{
+    emit changed();
+}
+
+void CppFindReferences::openEditor(const QString &fileName, int line, int column)
+{
+    TextEditor::BaseTextEditor::openEditorAt(fileName, line, column);
+}
+

src/plugins/cpptools/cppfindreferences.h

+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** Commercial Usage
+**
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** GNU Lesser General Public License Usage
+**
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at http://www.qtsoftware.com/contact.
+**
+**************************************************************************/
+
+#ifndef CPPFINDREFERENCES_H
+#define CPPFINDREFERENCES_H
+
+#include <QtCore/QObject>
+#include <QtCore/QPointer>
+#include <QtCore/QFuture>
+#include <QtCore/QFutureWatcher>
+
+namespace Core {
+namespace Utils {
+    class FileSearchResult;
+} // end of namespace Utils
+} // end of namespace Core
+
+namespace Find {
+class SearchResultWindow;
+} // end of namespace Find
+
+namespace CppTools {
+namespace Internal {
+
+class CppModelManager;
+
+class CppFindReferences: public QObject
+{
+    Q_OBJECT
+
+public:
+    CppFindReferences(CppModelManager *modelManager);
+    virtual ~CppFindReferences();
+
+Q_SIGNALS:
+    void changed();
+
+public:
+    void findAll(const QString &fileName, const QString &text);
+
+private Q_SLOTS:
+    void displayResult(int);
+    void searchFinished();
+    void openEditor(const QString&, int, int);
+
+private:
+    QPointer<CppModelManager> _modelManager;
+    Find::SearchResultWindow *_resultWindow;
+    QFutureWatcher<Core::Utils::FileSearchResult> m_watcher;
+};
+
+} // end of namespace Internal
+} // end of namespace CppTools
+
+#endif // CPPFINDREFERENCES_H

src/plugins/cpptools/cppmodelmanager.cpp

@@ -35,6 +35,7 @@
 #include "cppmodelmanager.h"
 #include "cpptoolsconstants.h"
 #include "cpptoolseditorsupport.h"
+#include "cppfindreferences.h"
 
 #include <functional>
 #include <QtConcurrentRun>
@@ -579,6 +580,8 @@ Document::Ptr CppPreprocessor::switchDocument(Document::Ptr doc)
 CppModelManager::CppModelManager(QObject *parent)
     : CppModelManagerInterface(parent)
 {
+    m_findReferences = new CppFindReferences(this);
+
     m_revision = 0;
     m_synchronizer.setCancelOnWait(true);
 
@@ -715,6 +718,14 @@ void CppModelManager::removeEditorSupport(AbstractEditorSupport *editorSupport)
     m_addtionalEditorSupport.remove(editorSupport);
 }
 
+void CppModelManager::findReferences(CPlusPlus::Symbol *symbol)
+{
+    if (Identifier *id = symbol->identifier()) {
+        QString word = QString::fromLatin1(id->chars(), id->size());
+        m_findReferences->findAll(symbol->fileName(), word);
+    }
+}
+
 QMap<QString, QString> CppModelManager::buildWorkingCopyList()
 {
     QMap<QString, QString> workingCopy;

src/plugins/cpptools/cppmodelmanager.h

@@ -62,6 +62,7 @@ namespace Internal {
 
 class CppEditorSupport;
 class CppPreprocessor;
+class CppFindReferences;
 
 class CppModelManager : public CppModelManagerInterface
 {
@@ -101,6 +102,8 @@ public:
     virtual void addEditorSupport(AbstractEditorSupport *editorSupport);
     virtual void removeEditorSupport(AbstractEditorSupport *editorSupport);
 
+    virtual void findReferences(CPlusPlus::Symbol *symbol);
+
     void setHeaderSuffixes(const QStringList &suffixes)
     { m_headerSuffixes = suffixes; }
 
@@ -205,6 +208,8 @@ private:
 
     QFutureSynchronizer<void> m_synchronizer;
     unsigned m_revision;
+
+    CppFindReferences *m_findReferences;
 };
 
 } // namespace Internal

src/plugins/cpptools/cppmodelmanagerinterface.h

@@ -94,6 +94,8 @@ public:
 
     virtual void addEditorSupport(AbstractEditorSupport *editorSupport) = 0;
     virtual void removeEditorSupport(AbstractEditorSupport *editorSupport) = 0;
+
+    virtual void findReferences(CPlusPlus::Symbol *symbol) = 0;
 };
 
 class CPPTOOLS_EXPORT AbstractEditorSupport

src/plugins/cpptools/cpptools.pro

@@ -23,7 +23,8 @@ HEADERS += completionsettingspage.h \
     searchsymbols.h \
     cppdoxygen.h \
     cppfilesettingspage.h \
-    cppsemanticsearch.h
+    cppsemanticsearch.h \
+    cppfindreferences.h
 
 SOURCES += completionsettingspage.cpp \
     cppclassesfilter.cpp \
@@ -38,7 +39,8 @@ SOURCES += completionsettingspage.cpp \
     cppdoxygen.cpp \
     cppfilesettingspage.cpp \
     abstracteditorsupport.cpp \
-    cppsemanticsearch.cpp
+    cppsemanticsearch.cpp \
+    cppfindreferences.cpp
 
 FORMS += completionsettingspage.ui \
     cppfilesettingspage.ui