qqmlrewrite_p.h

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** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
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** This file is part of the QtQml module of the Qt Toolkit.
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#ifndef QQMLREWRITE_P_H
#define QQMLREWRITE_P_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#include <private/textwriter_p.h>
#include <private/qqmljslexer_p.h>
#include <private/qqmljsparser_p.h>
#include <private/qqmljsmemorypool_p.h>

QT_BEGIN_NAMESPACE

namespace QQmlRewrite {
using namespace QQmlJS;

class SharedBindingTester : protected AST::Visitor
{
    bool _sharable;
public:
    bool isSharable(const QString &code);
    bool isSharable(AST::Node *Node);
    
    virtual bool visit(AST::FunctionDeclaration *) { _sharable = false; return false; }
    virtual bool visit(AST::FunctionExpression *) { _sharable = false; return false; }
    virtual bool visit(AST::CallExpression *) { _sharable = false; return false; }
};

class RewriteBinding: protected AST::Visitor
{
    unsigned _position;
    TextWriter *_writer;
    QString _name;
    const QString *_code;

public:
    QString operator()(const QString &code, bool *ok = 0, bool *sharable = 0);
    QString operator()(QQmlJS::AST::Node *node, const QString &code, bool *sharable = 0);

    //name of the function:  used for the debugger
    void setName(const QString &name) { _name = name; }

protected:
    using AST::Visitor::visit;

    void accept(AST::Node *node);
    QString rewrite(QString code, unsigned position, AST::Statement *node);
    void rewriteCaseStatements(AST::StatementList *statements, bool rewriteTheLastStatement);

    virtual bool visit(AST::StringLiteral *ast);
    virtual bool visit(AST::Block *ast);
    virtual bool visit(AST::ExpressionStatement *ast);

    virtual bool visit(AST::DoWhileStatement *ast);
    virtual void endVisit(AST::DoWhileStatement *ast);

    virtual bool visit(AST::WhileStatement *ast);
    virtual void endVisit(AST::WhileStatement *ast);

    virtual bool visit(AST::ForStatement *ast);
    virtual void endVisit(AST::ForStatement *ast);

    virtual bool visit(AST::LocalForStatement *ast);
    virtual void endVisit(AST::LocalForStatement *ast);

    virtual bool visit(AST::ForEachStatement *ast);
    virtual void endVisit(AST::ForEachStatement *ast);

    virtual bool visit(AST::LocalForEachStatement *ast);
    virtual void endVisit(AST::LocalForEachStatement *ast);

    virtual bool visit(AST::CaseBlock *ast);

private:
    int _inLoop;
};

class RewriteSignalHandler: protected AST::Visitor
{
    TextWriter *_writer;
    const QString *_code;
    int _position;

public:
    RewriteSignalHandler();
    QString operator()(QQmlJS::AST::Node *node, const QString &code, const QString &name);

protected:
    void rewriteMultilineStrings(QString &code);

    using AST::Visitor::visit;
    void accept(AST::Node *node);
    virtual bool visit(AST::StringLiteral *ast);
};

} // namespace QQmlRewrite

QT_END_NAMESPACE

#endif // QQMLREWRITE_P_H