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/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing
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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
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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****************************************************************************/
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#ifndef CPPREFACTORINGCHANGES_H
#define CPPREFACTORINGCHANGES_H

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#include "cpptools_global.h"
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#include <cplusplus/CppDocument.h>
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#include <texteditor/refactoringchanges.h>
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namespace CppTools {
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class CppRefactoringChanges;
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class CppRefactoringFile;
class CppRefactoringChangesData;
typedef QSharedPointer<CppRefactoringFile> CppRefactoringFilePtr;
typedef QSharedPointer<const CppRefactoringFile> CppRefactoringFileConstPtr;
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class CPPTOOLS_EXPORT CppRefactoringFile: public TextEditor::RefactoringFile
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{
public:
    CPlusPlus::Document::Ptr cppDocument() const;
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    void setCppDocument(CPlusPlus::Document::Ptr document);
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    CPlusPlus::Scope *scopeAt(unsigned index) const;

    bool isCursorOn(unsigned tokenIndex) const;
    bool isCursorOn(const CPlusPlus::AST *ast) const;

    Range range(int start, int end) const;
    Range range(unsigned tokenIndex) const;
    Range range(CPlusPlus::AST *ast) const;

    const CPlusPlus::Token &tokenAt(unsigned index) const;

    int startOf(unsigned index) const;
    int startOf(const CPlusPlus::AST *ast) const;
    int endOf(unsigned index) const;
    int endOf(const CPlusPlus::AST *ast) const;

    void startAndEndOf(unsigned index, int *start, int *end) const;

    using TextEditor::RefactoringFile::textOf;
    QString textOf(const CPlusPlus::AST *ast) const;

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protected:
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    CppRefactoringFile(const QString &fileName, const QSharedPointer<TextEditor::RefactoringChangesData> &data);
    CppRefactoringFile(QTextDocument *document, const QString &fileName);
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    CppRefactoringFile(TextEditor::TextEditorWidget *editor);
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    CppRefactoringChangesData *data() const;
    virtual void fileChanged();
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    mutable CPlusPlus::Document::Ptr m_cppDocument;
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    friend class CppRefactoringChanges; // for access to constructor
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};

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class CPPTOOLS_EXPORT CppRefactoringChanges: public TextEditor::RefactoringChanges
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{
public:
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    CppRefactoringChanges(const CPlusPlus::Snapshot &snapshot);
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    static CppRefactoringFilePtr file(TextEditor::TextEditorWidget *editor,
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                                      const CPlusPlus::Document::Ptr &document);
    CppRefactoringFilePtr file(const QString &fileName) const;
    // safe to use from non-gui threads
    CppRefactoringFileConstPtr fileNoEditor(const QString &fileName) const;
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    const CPlusPlus::Snapshot &snapshot() const;
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private:
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    CppRefactoringChangesData *data() const;
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};

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} // namespace CppTools
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#endif // CPPREFACTORINGCHANGES_H