Long live Qt 4.5!

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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtScript module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 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 the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#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"
+
+QT_BEGIN_NAMESPACE
+
+class QTextStream;
+
+namespace QScript {
+
+class PrettyPretty: protected AST::Visitor
+{
+public:
+    PrettyPretty(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);
+
+    virtual bool visit(AST::DebuggerStatement *node);
+    virtual void endVisit(AST::DebuggerStatement *node);
+
+    int indentLevel(int level)
+    {
+        int was = m_indentLevel;
+        m_indentLevel = level;
+        return was;
+    }
+
+    void pushIndentLevel()
+    { ++m_indentLevel; }
+
+    void popIndentLevel()
+    { --m_indentLevel; }
+
+    QTextStream &newlineAndIndent();
+
+    void acceptAsBlock(AST::Node *node);
+
+    static int operatorPrecedenceLevel(int op);
+    static int compareOperatorPrecedence(int op1, int op2);
+
+private:
+    QTextStream &out;
+    int m_indentLevel;
+
+    Q_DISABLE_COPY(PrettyPretty)
+};
+
+} // namespace QScript
+
+QT_END_NAMESPACE
+
+#endif