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/****************************************************************************
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**
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** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
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**
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** This file is part of Qt Creator.
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**
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** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.  For licensing terms and
** conditions see http://qt.digia.com/licensing.  For further information
** use the contact form at http://qt.digia.com/contact-us.
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**
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** GNU Lesser General Public License Usage
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** 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.
**
** In addition, as a special exception, Digia gives you certain additional
** rights.  These rights are described in the Digia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
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****************************************************************************/
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#include <cplusplus/pp.h>
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#include <cplusplus/Overview.h>
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#include "cppmodelmanager.h"
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#include "cppcompletionassist.h"
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#include "cpphighlightingsupport.h"
#include "cpphighlightingsupportinternal.h"
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#include "abstracteditorsupport.h"
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#ifndef ICHECK_BUILD
#  include "cpptoolsconstants.h"
#  include "cpptoolseditorsupport.h"
#  include "cppfindreferences.h"
#endif
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#include <functional>
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#include <QtConcurrentRun>
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#ifndef ICHECK_BUILD
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#  include <QFutureSynchronizer>
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#  include <utils/runextensions.h>
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#  include <texteditor/itexteditor.h>
#  include <texteditor/basetexteditor.h>
#  include <projectexplorer/project.h>
#  include <projectexplorer/projectexplorer.h>
#  include <projectexplorer/projectexplorerconstants.h>
#  include <projectexplorer/session.h>
#  include <coreplugin/icore.h>
#  include <coreplugin/mimedatabase.h>
#  include <coreplugin/editormanager/editormanager.h>
#  include <coreplugin/progressmanager/progressmanager.h>
#  include <extensionsystem/pluginmanager.h>
#else
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#  include <QDir>
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#endif
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#include <utils/qtcassert.h>

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#include <TranslationUnit.h>
#include <AST.h>
#include <Scope.h>
#include <Literals.h>
#include <Symbols.h>
#include <Names.h>
#include <NameVisitor.h>
#include <TypeVisitor.h>
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#include <ASTVisitor.h>
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#include <Lexer.h>
#include <Token.h>
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#include <Parser.h>
#include <Control.h>
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#include <CoreTypes.h>
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#include <QCoreApplication>
#include <QDebug>
#include <QMutexLocker>
#include <QTime>
#include <QTimer>
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#include <QtConcurrentMap>
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#include <QTextBlock>
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#include <iostream>
#include <sstream>
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namespace CPlusPlus {
uint qHash(const CppModelManagerInterface::ProjectPart &p)
{
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    uint h = qHash(p.defines) ^ p.language ^ ((int) p.cxx11Enabled);
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    foreach (const QString &i, p.includePaths)
        h ^= qHash(i);

    foreach (const QString &f, p.frameworkPaths)
        h ^= qHash(f);

    return h;
}
bool operator==(const CppModelManagerInterface::ProjectPart &p1,
                const CppModelManagerInterface::ProjectPart &p2)
{
    if (p1.defines != p2.defines)
        return false;
    if (p1.language != p2.language)
        return false;
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    if (p1.cxx11Enabled != p2.cxx11Enabled)
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        return false;
    if (p1.includePaths != p2.includePaths)
        return false;
    return p1.frameworkPaths == p2.frameworkPaths;
}
} // namespace CPlusPlus

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using namespace CppTools;
using namespace CppTools::Internal;
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using namespace CPlusPlus;

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#if defined(QTCREATOR_WITH_DUMP_AST) && defined(Q_CC_GNU)

#include <cxxabi.h>

class DumpAST: protected ASTVisitor
{
public:
    int depth;

    DumpAST(Control *control)
        : ASTVisitor(control), depth(0)
    { }

    void operator()(AST *ast)
    { accept(ast); }

protected:
    virtual bool preVisit(AST *ast)
    {
        std::ostringstream s;
        PrettyPrinter pp(control(), s);
        pp(ast);
        QString code = QString::fromStdString(s.str());
        code.replace('\n', ' ');
        code.replace(QRegExp("\\s+"), " ");

        const char *name = abi::__cxa_demangle(typeid(*ast).name(), 0, 0, 0) + 11;

        QByteArray ind(depth, ' ');
        ind += name;

        printf("%-40s %s\n", ind.constData(), qPrintable(code));
        ++depth;
        return true;
    }

    virtual void postVisit(AST *)
    { --depth; }
};

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#endif // QTCREATOR_WITH_DUMP_AST
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static const char pp_configuration_file[] = "<configuration>";

static const char pp_configuration[] =
    "# 1 \"<configuration>\"\n"
    "#define __cplusplus 1\n"
    "#define __extension__\n"
    "#define __context__\n"
    "#define __range__\n"
    "#define   restrict\n"
    "#define __restrict\n"
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    "#define __restrict__\n"
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    "#define __complex__\n"
    "#define __imag__\n"
    "#define __real__\n"

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    "#define __builtin_va_arg(a,b) ((b)0)\n"

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    // ### add macros for win32
    "#define __cdecl\n"
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    "#define __stdcall\n"
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    "#define QT_WA(x) x\n"
    "#define CALLBACK\n"
    "#define STDMETHODCALLTYPE\n"
    "#define __RPC_FAR\n"
    "#define __declspec(a)\n"
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    "#define STDMETHOD(method) virtual HRESULT STDMETHODCALLTYPE method\n"
    "#define __try try\n"
    "#define __except catch\n"
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    "#define __finally\n"
    "#define __inline inline\n"
    "#define __forceinline inline\n";
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#ifndef ICHECK_BUILD
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CppPreprocessor::CppPreprocessor(QPointer<CppModelManager> modelManager, bool dumpFileNameWhileParsing)
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    : snapshot(modelManager->snapshot()),
      m_modelManager(modelManager),
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      m_dumpFileNameWhileParsing(dumpFileNameWhileParsing),
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      preprocess(this, &env),
      m_revision(0)
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{
    preprocess.setKeepComments(true);
}
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#else

CppPreprocessor::CppPreprocessor(QPointer<CPlusPlus::ParseManager> modelManager)
    : preprocess(this, &env),
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      m_dumpFileNameWhileParsing(false),
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      m_revision(0)
{
}
#endif

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CppPreprocessor::~CppPreprocessor()
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{ }
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void CppPreprocessor::setRevision(unsigned revision)
{ m_revision = revision; }

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void CppPreprocessor::setWorkingCopy(const CppModelManagerInterface::WorkingCopy &workingCopy)
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{ m_workingCopy = workingCopy; }
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void CppPreprocessor::setIncludePaths(const QStringList &includePaths)
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{
    m_includePaths.clear();

    for (int i = 0; i < includePaths.size(); ++i) {
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        const QString &path = includePaths.at(i);
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#ifdef Q_OS_DARWIN
        if (i + 1 < includePaths.size() && path.endsWith(QLatin1String(".framework/Headers"))) {
            const QFileInfo pathInfo(path);
            const QFileInfo frameworkFileInfo(pathInfo.path());
            const QString frameworkName = frameworkFileInfo.baseName();

            const QFileInfo nextIncludePath = includePaths.at(i + 1);
            if (nextIncludePath.fileName() == frameworkName) {
                // We got a QtXXX.framework/Headers followed by $QTDIR/include/QtXXX.
                // In this case we prefer to include files from $QTDIR/include/QtXXX.
                continue;
            }
        }
        m_includePaths.append(path);
#else
        m_includePaths.append(path);
#endif
    }
}
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void CppPreprocessor::setFrameworkPaths(const QStringList &frameworkPaths)
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{
    m_frameworkPaths.clear();

    foreach (const QString &frameworkPath, frameworkPaths) {
        addFrameworkPath(frameworkPath);
    }
}

// Add the given framework path, and expand private frameworks.
//
// Example:
//  <framework-path>/ApplicationServices.framework
// has private frameworks in:
//  <framework-path>/ApplicationServices.framework/Frameworks
// if the "Frameworks" folder exists inside the top level framework.
void CppPreprocessor::addFrameworkPath(const QString &frameworkPath)
{
    // The algorithm below is a bit too eager, but that's because we're not getting
    // in the frameworks we're linking against. If we would have that, then we could
    // add only those private frameworks.
    if (!m_frameworkPaths.contains(frameworkPath)) {
        m_frameworkPaths.append(frameworkPath);
    }

    const QDir frameworkDir(frameworkPath);
    const QStringList filter = QStringList() << QLatin1String("*.framework");
    foreach (const QFileInfo &framework, frameworkDir.entryInfoList(filter)) {
        if (!framework.isDir())
            continue;
        const QFileInfo privateFrameworks(framework.absoluteFilePath(), QLatin1String("Frameworks"));
        if (privateFrameworks.exists() && privateFrameworks.isDir()) {
            addFrameworkPath(privateFrameworks.absoluteFilePath());
        }
    }
}
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void CppPreprocessor::setProjectFiles(const QStringList &files)
{ m_projectFiles = files; }

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void CppPreprocessor::setTodo(const QStringList &files)
{ m_todo = QSet<QString>::fromList(files); }

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#ifndef ICHECK_BUILD
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namespace {
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class Process: public std::unary_function<Document::Ptr, void>
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{
    QPointer<CppModelManager> _modelManager;
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    Snapshot _snapshot;
    Document::Ptr _doc;
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    Document::CheckMode _mode;
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public:
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    Process(QPointer<CppModelManager> modelManager,
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            Document::Ptr doc,
            const Snapshot &snapshot,
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            const CppModelManager::WorkingCopy &workingCopy)
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        : _modelManager(modelManager),
          _snapshot(snapshot),
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          _doc(doc),
          _mode(Document::FastCheck)
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    {
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        if (workingCopy.contains(_doc->fileName()))
            _mode = Document::FullCheck;
    }
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    void operator()()
    {
        _doc->check(_mode);
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        if (_modelManager)
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            _modelManager->emitDocumentUpdated(_doc); // ### TODO: compress
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        _doc->releaseSourceAndAST();
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    }
};
} // end of anonymous namespace
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#endif
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void CppPreprocessor::run(const QString &fileName)
{
    QString absoluteFilePath = fileName;
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    sourceNeeded(0, absoluteFilePath, IncludeGlobal);
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}
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void CppPreprocessor::resetEnvironment()
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{
    env.reset();
    m_processed.clear();
}
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bool CppPreprocessor::includeFile(const QString &absoluteFilePath, QString *result, unsigned *revision)
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{
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    if (absoluteFilePath.isEmpty() || m_included.contains(absoluteFilePath))
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        return true;

    if (m_workingCopy.contains(absoluteFilePath)) {
        m_included.insert(absoluteFilePath);
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        const QPair<QString, unsigned> r = m_workingCopy.get(absoluteFilePath);
        *result = r.first;
        *revision = r.second;
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        return true;
    }

    QFileInfo fileInfo(absoluteFilePath);
    if (! fileInfo.isFile())
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        return false;
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    QFile file(absoluteFilePath);
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    if (file.open(QFile::ReadOnly | QFile::Text)) {
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        m_included.insert(absoluteFilePath);
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        QTextCodec *defaultCodec = Core::EditorManager::instance()->defaultTextCodec();
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        QTextStream stream(&file);
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        stream.setCodec(defaultCodec);
        if (result)
            *result = stream.readAll();
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        file.close();
        return true;
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    }

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    return false;
}

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QString CppPreprocessor::tryIncludeFile(QString &fileName, IncludeType type, unsigned *revision)
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{
    if (type == IncludeGlobal) {
        const QString fn = m_fileNameCache.value(fileName);

        if (! fn.isEmpty()) {
            fileName = fn;

            if (revision)
                *revision = 0;

            return QString();
        }
    }

    const QString originalFileName = fileName;
    const QString contents = tryIncludeFile_helper(fileName, type, revision);
    if (type == IncludeGlobal)
        m_fileNameCache.insert(originalFileName, fileName);
    return contents;
}

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static inline void appendDirSeparatorIfNeeded(QString &path)
{
    if (!path.endsWith(QLatin1Char('/'), Qt::CaseInsensitive))
        path += QLatin1Char('/');
}

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QString CppPreprocessor::tryIncludeFile_helper(QString &fileName, IncludeType type, unsigned *revision)
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{
    QFileInfo fileInfo(fileName);
    if (fileName == QLatin1String(pp_configuration_file) || fileInfo.isAbsolute()) {
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        QString contents;
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        includeFile(fileName, &contents, revision);
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        return contents;
    }

    if (type == IncludeLocal && m_currentDoc) {
        QFileInfo currentFileInfo(m_currentDoc->fileName());
        QString path = currentFileInfo.absolutePath();
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        appendDirSeparatorIfNeeded(path);
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        path += fileName;
        path = QDir::cleanPath(path);
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        QString contents;
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        if (includeFile(path, &contents, revision)) {
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            fileName = path;
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            return contents;
        }
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    }
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    foreach (const QString &includePath, m_includePaths) {
        QString path = includePath;
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        appendDirSeparatorIfNeeded(path);
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        path += fileName;
        path = QDir::cleanPath(path);
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        QString contents;
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        if (includeFile(path, &contents, revision)) {
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            fileName = path;
            return contents;
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        }
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    }
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    // look in the system include paths
    foreach (const QString &includePath, m_systemIncludePaths) {
        QString path = includePath;
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        appendDirSeparatorIfNeeded(path);
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        path += fileName;
        path = QDir::cleanPath(path);
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        QString contents;
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        if (includeFile(path, &contents, revision)) {
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            fileName = path;
            return contents;
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        }
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    }

    int index = fileName.indexOf(QLatin1Char('/'));
    if (index != -1) {
        QString frameworkName = fileName.left(index);
        QString name = fileName.mid(index + 1);
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        foreach (const QString &frameworkPath, m_frameworkPaths) {
            QString path = frameworkPath;
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            appendDirSeparatorIfNeeded(path);
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            path += frameworkName;
            path += QLatin1String(".framework/Headers/");
            path += name;
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            path = QDir::cleanPath(path);
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            QString contents;
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            if (includeFile(path, &contents, revision)) {
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                fileName = path;
                return contents;
            }
        }
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    }
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    QString path = fileName;
    if (path.at(0) != QLatin1Char('/'))
        path.prepend(QLatin1Char('/'));
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    foreach (const QString &projectFile, m_projectFiles) {
        if (projectFile.endsWith(path)) {
            fileName = projectFile;
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            QString contents;
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            includeFile(fileName, &contents, revision);
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            return contents;
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        }
    }

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    //qDebug() << "**** file" << fileName << "not found!";
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    return QString();
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}
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void CppPreprocessor::macroAdded(const Macro &macro)
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{
    if (! m_currentDoc)
        return;
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    m_currentDoc->appendMacro(macro);
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}
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void CppPreprocessor::passedMacroDefinitionCheck(unsigned offset, unsigned line, const Macro &macro)
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{
    if (! m_currentDoc)
        return;

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    m_currentDoc->addMacroUse(macro, offset, macro.name().length(), line,
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                              QVector<MacroArgumentReference>());
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}

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void CppPreprocessor::failedMacroDefinitionCheck(unsigned offset, const ByteArrayRef &name)
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{
    if (! m_currentDoc)
        return;

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    m_currentDoc->addUndefinedMacroUse(QByteArray(name.start(), name.size()), offset);
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}

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void CppPreprocessor::notifyMacroReference(unsigned offset, unsigned line, const Macro &macro)
{
    if (! m_currentDoc)
        return;

    m_currentDoc->addMacroUse(macro, offset, macro.name().length(), line,
                              QVector<MacroArgumentReference>());
}

void CppPreprocessor::startExpandingMacro(unsigned offset, unsigned line,
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                                          const Macro &macro,
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                                          const QVector<MacroArgumentReference> &actuals)
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{
    if (! m_currentDoc)
        return;
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    m_currentDoc->addMacroUse(macro, offset, macro.name().length(), line, actuals);
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}
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void CppPreprocessor::stopExpandingMacro(unsigned, const Macro &)
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{
    if (! m_currentDoc)
        return;
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    //qDebug() << "stop expanding:" << macro.name;
}
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void CppPreprocessor::mergeEnvironment(Document::Ptr doc)
{
    if (! doc)
        return;
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    const QString fn = doc->fileName();
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    if (m_processed.contains(fn))
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        return;
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    m_processed.insert(fn);
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    foreach (const Document::Include &incl, doc->includes()) {
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        QString includedFile = incl.fileName();

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        if (Document::Ptr includedDoc = snapshot.document(includedFile))
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            mergeEnvironment(includedDoc);
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        else
            run(includedFile);
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    }
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    env.addMacros(doc->definedMacros());
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}
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void CppPreprocessor::startSkippingBlocks(unsigned offset)
{
    //qDebug() << "start skipping blocks:" << offset;
    if (m_currentDoc)
        m_currentDoc->startSkippingBlocks(offset);
}

void CppPreprocessor::stopSkippingBlocks(unsigned offset)
{
    //qDebug() << "stop skipping blocks:" << offset;
    if (m_currentDoc)
        m_currentDoc->stopSkippingBlocks(offset);
}

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void CppPreprocessor::sourceNeeded(unsigned line, QString &fileName, IncludeType type)
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{
    if (fileName.isEmpty())
        return;

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    unsigned editorRevision = 0;
    QString contents = tryIncludeFile(fileName, type, &editorRevision);
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    fileName = QDir::cleanPath(fileName);
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    if (m_currentDoc) {
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        m_currentDoc->addIncludeFile(fileName, line);
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        if (contents.isEmpty() && ! QFileInfo(fileName).isAbsolute()) {
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            QString msg = QCoreApplication::translate(
                    "CppPreprocessor", "%1: No such file or directory").arg(fileName);
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            Document::DiagnosticMessage d(Document::DiagnosticMessage::Warning,
                                          m_currentDoc->fileName(),
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                                          line, /*column = */ 0,
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                                          msg);
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            m_currentDoc->addDiagnosticMessage(d);
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            //qWarning() << "file not found:" << fileName << m_currentDoc->fileName() << env.current_line;
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        }
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    }
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    if (m_dumpFileNameWhileParsing) {
        qDebug() << "Parsing file:" << fileName
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//             << "contents:" << contents.size()
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                    ;
    }
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    Document::Ptr doc = snapshot.document(fileName);
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    if (doc) {
        mergeEnvironment(doc);
        return;
    }
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    doc = Document::create(fileName);
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    doc->setRevision(m_revision);
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    doc->setEditorRevision(editorRevision);
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    QFileInfo info(fileName);
    if (info.exists())
        doc->setLastModified(info.lastModified());

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    Document::Ptr previousDoc = switchDocument(doc);
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    const QByteArray preprocessedCode = preprocess.run(fileName, contents);
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//    { QByteArray b(preprocessedCode); b.replace("\n", "<<<\n"); qDebug("Preprocessed code for \"%s\": [[%s]]", fileName.toUtf8().constData(), b.constData()); }

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    doc->setUtf8Source(preprocessedCode);
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    doc->keepSourceAndAST();
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    doc->tokenize();
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    snapshot.insert(doc);
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    m_todo.remove(fileName);
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#ifndef ICHECK_BUILD
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    Process process(m_modelManager, doc, snapshot, m_workingCopy);
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    process();
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    (void) switchDocument(previousDoc);
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#else
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    doc->releaseSource();
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    Document::CheckMode mode = Document::FastCheck;
    mode = Document::FullCheck;
    doc->parse();
    doc->check(mode);
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    (void) switchDocument(previousDoc);
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#endif
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}
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Document::Ptr CppPreprocessor::switchDocument(Document::Ptr doc)
{
    Document::Ptr previousDoc = m_currentDoc;
    m_currentDoc = doc;
    return previousDoc;
}
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#ifndef ICHECK_BUILD
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void CppModelManager::updateModifiedSourceFiles()
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{
    const Snapshot snapshot = this->snapshot();
    QStringList sourceFiles;

    foreach (const Document::Ptr doc, snapshot) {
        const QDateTime lastModified = doc->lastModified();

        if (! lastModified.isNull()) {
            QFileInfo fileInfo(doc->fileName());

            if (fileInfo.exists() && fileInfo.lastModified() != lastModified)
                sourceFiles.append(doc->fileName());
        }
    }

    updateSourceFiles(sourceFiles);
}

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CppModelManager *CppModelManager::instance()
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{
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    // TODO this is pretty stupid. use regular singleton pattern.
    return ExtensionSystem::PluginManager::getObject<CppModelManager>();
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}

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/*!
    \class CppTools::CppModelManager
    \brief The CppModelManager keeps track of one CppCodeModel instance
           for each project and all related CppCodeModelPart instances.

    It also takes care of updating the code models when C++ files are
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    modified within Qt Creator.
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*/

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CppModelManager::CppModelManager(QObject *parent)
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    : CppModelManagerInterface(parent)
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{
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    m_findReferences = new CppFindReferences(this);
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    m_indexerEnabled = qgetenv("QTCREATOR_NO_CODE_INDEXER").isNull();
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    m_dumpFileNameWhileParsing = !qgetenv("QTCREATOR_DUMP_FILENAME_WHILE_PARSING").isNull();
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    m_revision = 0;
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    m_synchronizer.setCancelOnWait(true);

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    m_dirty = true;

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    ProjectExplorer::ProjectExplorerPlugin *pe =
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       ProjectExplorer::ProjectExplorerPlugin::instance();
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    QTC_ASSERT(pe, return);
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    ProjectExplorer::SessionManager *session = pe->session();
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    m_updateEditorSelectionsTimer = new QTimer(this);
    m_updateEditorSelectionsTimer->setInterval(500);
    m_updateEditorSelectionsTimer->setSingleShot(true);
    connect(m_updateEditorSelectionsTimer, SIGNAL(timeout()),
            this, SLOT(updateEditorSelections()));

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    connect(session, SIGNAL(projectAdded(ProjectExplorer::Project*)),
            this, SLOT(onProjectAdded(ProjectExplorer::Project*)));

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    connect(session, SIGNAL(aboutToRemoveProject(ProjectExplorer::Project*)),
            this, SLOT(onAboutToRemoveProject(ProjectExplorer::Project*)));
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    connect(session, SIGNAL(aboutToUnloadSession(QString)),
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            this, SLOT(onAboutToUnloadSession()));
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    qRegisterMetaType<CPlusPlus::Document::Ptr>("CPlusPlus::Document::Ptr");

    // thread connections
    connect(this, SIGNAL(documentUpdated(CPlusPlus::Document::Ptr)),
            this, SLOT(onDocumentUpdated(CPlusPlus::Document::Ptr)));
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    connect(this, SIGNAL(extraDiagnosticsUpdated(QString)),
            this, SLOT(onExtraDiagnosticsUpdated(QString)));
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    // Listen for editor closed and opened events so that we can keep track of changing files
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    connect(Core::ICore::editorManager(), SIGNAL(editorOpened(Core::IEditor*)),
        this, SLOT(editorOpened(Core::IEditor*)));
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    connect(Core::ICore::editorManager(), SIGNAL(editorAboutToClose(Core::IEditor*)),
        this, SLOT(editorAboutToClose(Core::IEditor*)));
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    m_completionFallback = new InternalCompletionAssistProvider;
    m_completionAssistProvider = m_completionFallback;
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    ExtensionSystem::PluginManager::addObject(m_completionAssistProvider);
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    m_highlightingFallback = new CppHighlightingSupportInternalFactory;
    m_highlightingFactory = m_highlightingFallback;
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}

CppModelManager::~CppModelManager()
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{
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    ExtensionSystem::PluginManager::removeObject(m_completionAssistProvider);
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    delete m_completionFallback;
    delete m_highlightingFallback;
}
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Snapshot CppModelManager::snapshot() const
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{
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    QMutexLocker locker(&protectSnapshot);
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    return m_snapshot;
}
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void CppModelManager::ensureUpdated()
{
    QMutexLocker locker(&mutex);
    if (! m_dirty)
        return;

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    m_projectFiles = internalProjectFiles();
    m_includePaths = internalIncludePaths();
    m_frameworkPaths = internalFrameworkPaths();
    m_definedMacros = internalDefinedMacros();
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    m_dirty = false;
}

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QStringList CppModelManager::internalProjectFiles() const
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{
    QStringList files;
    QMapIterator<ProjectExplorer::Project *, ProjectInfo> it(m_projects);
    while (it.hasNext()) {
        it.next();
        ProjectInfo pinfo = it.value();
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        foreach (const ProjectPart::Ptr &part, pinfo.projectParts())
            files += part->sourceFiles;
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    }
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    files.removeDuplicates();
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    return files;
}

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QStringList CppModelManager::internalIncludePaths() const
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{
    QStringList includePaths;
    QMapIterator<ProjectExplorer::Project *, ProjectInfo> it(m_projects);
    while (it.hasNext()) {
        it.next();
        ProjectInfo pinfo = it.value();
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        foreach (const ProjectPart::Ptr &part, pinfo.projectParts())
            includePaths += part->includePaths;
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    }
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    includePaths.removeDuplicates();
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    return includePaths;
}

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QStringList CppModelManager::internalFrameworkPaths() const
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{
    QStringList frameworkPaths;
    QMapIterator<ProjectExplorer::Project *, ProjectInfo> it(m_projects);
    while (it.hasNext()) {
        it.next();
        ProjectInfo pinfo = it.value();
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        foreach (const ProjectPart::Ptr &part, pinfo.projectParts())
            frameworkPaths += part->frameworkPaths;
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    }
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    frameworkPaths.removeDuplicates();
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    return frameworkPaths;
}

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QByteArray CppModelManager::internalDefinedMacros() const
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{
    QByteArray macros;
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    QSet<QByteArray> alreadyIn;
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    QMapIterator<ProjectExplorer::Project *, ProjectInfo> it(m_projects);
    while (it.hasNext()) {
        it.next();
        ProjectInfo pinfo = it.value();
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        foreach (const ProjectPart::Ptr &part, pinfo.projectParts()) {
            const QList<QByteArray> defs = part->defines.split('\n');
            foreach (const QByteArray &def, defs) {
                if (!alreadyIn.contains(def)) {
                    macros += def;
                    macros.append('\n');
                    alreadyIn.insert(def);
                }
            }
        }
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    }
    return macros;
}

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void CppModelManager::addEditorSupport(AbstractEditorSupport *editorSupport)
{
    m_addtionalEditorSupport.insert(editorSupport);
}

void CppModelManager::removeEditorSupport(AbstractEditorSupport *editorSupport)
{
    m_addtionalEditorSupport.remove(editorSupport);
}

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QList<int> CppModelManager::references(CPlusPlus::Symbol *symbol, const LookupContext &context)
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{
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    return m_findReferences->references(symbol, context);
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}

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void CppModelManager::findUsages(CPlusPlus::Symbol *symbol, const CPlusPlus::LookupContext &context)
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{
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    if (symbol->identifier())
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        m_findReferences->findUsages(symbol, context);
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}

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void CppModelManager::renameUsages(CPlusPlus::Symbol *symbol, const CPlusPlus::LookupContext &context,
                                   const QString &replacement)
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{
    if (symbol->identifier())
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        m_findReferences->renameUsages(symbol, context, replacement);
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}

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void CppModelManager::findMacroUsages(const CPlusPlus::Macro &macro)
{
    m_findReferences->findMacroUses(macro);
}

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void CppModelManager::renameMacroUsages(const CPlusPlus::Macro &macro, const QString &replacement)
{
    m_findReferences->renameMacroUses(macro, replacement);
}

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CppModelManager::WorkingCopy CppModelManager::buildWorkingCopyList()
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{
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    WorkingCopy workingCopy;
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    QMapIterator<TextEditor::ITextEditor *, CppEditorSupport *> it(m_editorSupport);
    while (it.hasNext()) {
        it.next();
        TextEditor::ITextEditor *textEditor = it.key();
        CppEditorSupport *editorSupport = it.value();
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        QString fileName = textEditor->document()->fileName();
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        workingCopy.insert(fileName, editorSupport->contents(), editorSupport->editorRevision());
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    }

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    QSetIterator<AbstractEditorSupport *> jt(m_addtionalEditorSupport);
    while (jt.hasNext()) {
        AbstractEditorSupport *es =  jt.next();
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        workingCopy.insert(es->fileName(), es->contents());
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    }

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    // add the project configuration file
    QByteArray conf(pp_configuration);
    conf += definedMacros();
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    workingCopy.insert(pp_configuration_file, conf);
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    return workingCopy;
}

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CppModelManager::WorkingCopy CppModelManager::workingCopy() const
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{
    return const_cast<CppModelManager *>(this)->buildWorkingCopyList();
}

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QFuture<void> CppModelManager::updateSourceFiles(const QStringList &sourceFiles)
{ return refreshSourceFiles(sourceFiles); }
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QList<CppModelManager::ProjectInfo> CppModelManager::projectInfos() const
{
    QMutexLocker locker(&mutex);

    return m_projects.values();
}

CppModelManager::ProjectInfo CppModelManager::projectInfo(ProjectExplorer::Project *project) const
{
    QMutexLocker locker(&mutex);

    return m_projects.value(project, ProjectInfo(project));
}

void CppModelManager::updateProjectInfo(const ProjectInfo &pinfo)
{
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#if 0
    // Tons of debug output...
    qDebug()<<"========= CppModelManager::updateProjectInfo ======";
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    qDebug()<<" for project:"<< pinfo.project().data()->document()->fileName();
    foreach (const ProjectPart::Ptr &part, pinfo.projectParts()) {
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        qDebug() << "=== part ===";
        qDebug() << "language:" << (part->language == CXX ? "C++" : "ObjC++");