qscriptprettypretty_p.h

奇趣公司比较新的qt/emd版本

/****************************************************************************
**
** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
**
** This file is part of the QtScript module of the Qt Toolkit.
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** License version 2.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of
** this file.  Please review the following information to ensure GNU
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** or contact the sales department at [e-mail].
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** additional rights. These rights are described in the Trolltech GPL
** Exception version 1.0, which can be found at
** http://www.trolltech.com/products/qt/gplexception/ and in the file
** GPL_EXCEPTION.txt in this package.
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** plug-in the right for the Qt/Eclipse Integration to link to
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****************************************************************************/

#ifndef QSCRIPTPRETTYPRETTY_P_H
#define QSCRIPTPRETTYPRETTY_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 <QtCore/qglobal.h>

#include "qscriptastvisitor_p.h"

class QTextStream;
class QScriptEngine;
class QScriptEnginePrivate;

namespace QScript {

class PrettyPretty: protected AST::Visitor
{
public:
    PrettyPretty(QScriptEngine *eng, QTextStream &out);
    virtual ~PrettyPretty();

    QTextStream &operator () (AST::Node *node, int level = 0);

protected:
    void accept(AST::Node *node);

    virtual bool preVisit(AST::Node *node);

    virtual bool visit(AST::ThisExpression *node);
    virtual void endVisit(AST::ThisExpression *node);

    virtual bool visit(AST::IdentifierExpression *node);
    virtual void endVisit(AST::IdentifierExpression *node);

    virtual bool visit(AST::NullExpression *node);
    virtual void endVisit(AST::NullExpression *node);

    virtual bool visit(AST::TrueLiteral *node);
    virtual void endVisit(AST::TrueLiteral *node);

    virtual bool visit(AST::FalseLiteral *node);
    virtual void endVisit(AST::FalseLiteral *node);

    virtual bool visit(AST::StringLiteral *node);
    virtual void endVisit(AST::StringLiteral *node);

    virtual bool visit(AST::NumericLiteral *node);
    virtual void endVisit(AST::NumericLiteral *node);

    virtual bool visit(AST::RegExpLiteral *node);
    virtual void endVisit(AST::RegExpLiteral *node);

    virtual bool visit(AST::ArrayLiteral *node);
    virtual void endVisit(AST::ArrayLiteral *node);

    virtual bool visit(AST::ObjectLiteral *node);
    virtual void endVisit(AST::ObjectLiteral *node);

    virtual bool visit(AST::ElementList *node);
    virtual void endVisit(AST::ElementList *node);

    virtual bool visit(AST::Elision *node);
    virtual void endVisit(AST::Elision *node);

    virtual bool visit(AST::PropertyNameAndValueList *node);
    virtual void endVisit(AST::PropertyNameAndValueList *node);

    virtual bool visit(AST::IdentifierPropertyName *node);
    virtual void endVisit(AST::IdentifierPropertyName *node);

    virtual bool visit(AST::StringLiteralPropertyName *node);
    virtual void endVisit(AST::StringLiteralPropertyName *node);

    virtual bool visit(AST::NumericLiteralPropertyName *node);
    virtual void endVisit(AST::NumericLiteralPropertyName *node);

    virtual bool visit(AST::ArrayMemberExpression *node);
    virtual void endVisit(AST::ArrayMemberExpression *node);

    virtual bool visit(AST::FieldMemberExpression *node);
    virtual void endVisit(AST::FieldMemberExpression *node);

    virtual bool visit(AST::NewMemberExpression *node);
    virtual void endVisit(AST::NewMemberExpression *node);

    virtual bool visit(AST::NewExpression *node);
    virtual void endVisit(AST::NewExpression *node);

    virtual bool visit(AST::CallExpression *node);
    virtual void endVisit(AST::CallExpression *node);

    virtual bool visit(AST::ArgumentList *node);
    virtual void endVisit(AST::ArgumentList *node);

    virtual bool visit(AST::PostIncrementExpression *node);
    virtual void endVisit(AST::PostIncrementExpression *node);

    virtual bool visit(AST::PostDecrementExpression *node);
    virtual void endVisit(AST::PostDecrementExpression *node);

    virtual bool visit(AST::DeleteExpression *node);
    virtual void endVisit(AST::DeleteExpression *node);

    virtual bool visit(AST::VoidExpression *node);
    virtual void endVisit(AST::VoidExpression *node);

    virtual bool visit(AST::TypeOfExpression *node);
    virtual void endVisit(AST::TypeOfExpression *node);

    virtual bool visit(AST::PreIncrementExpression *node);
    virtual void endVisit(AST::PreIncrementExpression *node);

    virtual bool visit(AST::PreDecrementExpression *node);
    virtual void endVisit(AST::PreDecrementExpression *node);

    virtual bool visit(AST::UnaryPlusExpression *node);
    virtual void endVisit(AST::UnaryPlusExpression *node);

    virtual bool visit(AST::UnaryMinusExpression *node);
    virtual void endVisit(AST::UnaryMinusExpression *node);

    virtual bool visit(AST::TildeExpression *node);
    virtual void endVisit(AST::TildeExpression *node);

    virtual bool visit(AST::NotExpression *node);
    virtual void endVisit(AST::NotExpression *node);

    virtual bool visit(AST::BinaryExpression *node);
    virtual void endVisit(AST::BinaryExpression *node);

    virtual bool visit(AST::ConditionalExpression *node);
    virtual void endVisit(AST::ConditionalExpression *node);

    virtual bool visit(AST::Expression *node);
    virtual void endVisit(AST::Expression *node);

    virtual bool visit(AST::Block *node);
    virtual void endVisit(AST::Block *node);

    virtual bool visit(AST::StatementList *node);
    virtual void endVisit(AST::StatementList *node);

    virtual bool visit(AST::VariableStatement *node);
    virtual void endVisit(AST::VariableStatement *node);

    virtual bool visit(AST::VariableDeclarationList *node);
    virtual void endVisit(AST::VariableDeclarationList *node);

    virtual bool visit(AST::VariableDeclaration *node);
    virtual void endVisit(AST::VariableDeclaration *node);

    virtual bool visit(AST::EmptyStatement *node);
    virtual void endVisit(AST::EmptyStatement *node);

    virtual bool visit(AST::ExpressionStatement *node);
    virtual void endVisit(AST::ExpressionStatement *node);

    virtual bool visit(AST::IfStatement *node);
    virtual void endVisit(AST::IfStatement *node);

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

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

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

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

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

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

    virtual bool visit(AST::ContinueStatement *node);
    virtual void endVisit(AST::ContinueStatement *node);

    virtual bool visit(AST::BreakStatement *node);
    virtual void endVisit(AST::BreakStatement *node);

    virtual bool visit(AST::ReturnStatement *node);
    virtual void endVisit(AST::ReturnStatement *node);

    virtual bool visit(AST::WithStatement *node);
    virtual void endVisit(AST::WithStatement *node);

    virtual bool visit(AST::SwitchStatement *node);
    virtual void endVisit(AST::SwitchStatement *node);

    virtual bool visit(AST::CaseBlock *node);
    virtual void endVisit(AST::CaseBlock *node);

    virtual bool visit(AST::CaseClauses *node);
    virtual void endVisit(AST::CaseClauses *node);

    virtual bool visit(AST::CaseClause *node);
    virtual void endVisit(AST::CaseClause *node);

    virtual bool visit(AST::DefaultClause *node);
    virtual void endVisit(AST::DefaultClause *node);

    virtual bool visit(AST::LabelledStatement *node);
    virtual void endVisit(AST::LabelledStatement *node);

    virtual bool visit(AST::ThrowStatement *node);
    virtual void endVisit(AST::ThrowStatement *node);

    virtual bool visit(AST::TryStatement *node);
    virtual void endVisit(AST::TryStatement *node);

    virtual bool visit(AST::Catch *node);
    virtual void endVisit(AST::Catch *node);

    virtual bool visit(AST::Finally *node);
    virtual void endVisit(AST::Finally *node);

    virtual bool visit(AST::FunctionDeclaration *node);
    virtual void endVisit(AST::FunctionDeclaration *node);

    virtual bool visit(AST::FunctionExpression *node);
    virtual void endVisit(AST::FunctionExpression *node);

    virtual bool visit(AST::FormalParameterList *node);
    virtual void endVisit(AST::FormalParameterList *node);

    virtual bool visit(AST::FunctionBody *node);
    virtual void endVisit(AST::FunctionBody *node);

    virtual bool visit(AST::Program *node);
    virtual void endVisit(AST::Program *node);

    virtual bool visit(AST::SourceElements *node);
    virtual void endVisit(AST::SourceElements *node);

    virtual bool visit(AST::FunctionSourceElement *node);
    virtual void endVisit(AST::FunctionSourceElement *node);

    virtual bool visit(AST::StatementSourceElement *node);
    virtual void endVisit(AST::StatementSourceElement *node);

    int indentLevel(int level)
    {
        int was = m_indentLevel;
        m_indentLevel = level;
        return was;
    }

    void pushIndentLevel()
    { ++m_indentLevel; }

    void popIndentLevel()
    { --m_indentLevel; }

    QTextStream &newlineAndIndent();

private:
    QScriptEnginePrivate *eng;
    QTextStream &out;
    int m_indentLevel;

    Q_DISABLE_COPY(PrettyPretty)
};

} // namespace QScript

#endif