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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (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 Technology Preview License Agreement accompanying
** this package.
**
** 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 1.1, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QSCRIPTASM_P_H
#define QSCRIPTASM_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>
#ifndef QT_NO_SCRIPT
#include <QtCore/qvector.h>
#include "qscriptvalueimplfwd_p.h"
QT_BEGIN_NAMESPACE
class QTextStream;
class QScriptInstruction
{
public:
enum Operator {
#define Q_SCRIPT_DEFINE_OPERATOR(op) OP_##op,
#include "instruction.table"
#undef Q_SCRIPT_DEFINE_OPERATOR
OP_Dummy
};
public:
Operator op;
QScriptValueImpl operand[2];
#if defined(Q_SCRIPT_DIRECT_CODE)
void *code;
#endif
void print(QTextStream &out) const;
static const char *opcode[];
};
namespace QScript {
class NodePool;
class ExceptionHandlerDescriptor
{
public:
ExceptionHandlerDescriptor()
: m_startInstruction(0),
m_endInstruction(0),
m_handlerInstruction(0) {}
ExceptionHandlerDescriptor(
int startInstruction,
int endInstruction,
int handlerInstruction)
: m_startInstruction(startInstruction),
m_endInstruction(endInstruction),
m_handlerInstruction(handlerInstruction) {}
inline int startInstruction() const { return m_startInstruction; }
inline int endInstruction() const { return m_endInstruction; }
inline int handlerInstruction() const { return m_handlerInstruction; }
private:
int m_startInstruction;
int m_endInstruction;
int m_handlerInstruction;
};
class CompilationUnit
{
public:
CompilationUnit(): m_valid(true),
m_errorLineNumber(-1) {}
bool isValid() const { return m_valid; }
void setError(const QString &message, int lineNumber)
{
m_errorMessage = message;
m_errorLineNumber = lineNumber;
m_valid = false;
}
QString errorMessage() const
{ return m_errorMessage; }
int errorLineNumber() const
{ return m_errorLineNumber; }
QVector<QScriptInstruction> instructions() const
{ return m_instructions; }
void setInstructions(const QVector<QScriptInstruction> &instructions)
{ m_instructions = instructions; }
QVector<ExceptionHandlerDescriptor> exceptionHandlers() const
{ return m_exceptionHandlers; }
void setExceptionHandlers(const QVector<ExceptionHandlerDescriptor> &exceptionHandlers)
{ m_exceptionHandlers = exceptionHandlers; }
private:
bool m_valid;
QString m_errorMessage;
int m_errorLineNumber;
QVector<QScriptInstruction> m_instructions;
QVector<ExceptionHandlerDescriptor> m_exceptionHandlers;
};
class Code
{
public:
Code();
~Code();
void init(const CompilationUnit &compilation, NodePool *astPool);
public: // attributes
bool optimized;
QScriptInstruction *firstInstruction;
QScriptInstruction *lastInstruction;
QVector<ExceptionHandlerDescriptor> exceptionHandlers;
NodePool *astPool;
private:
Q_DISABLE_COPY(Code)
};
} // namespace QScript
QT_END_NAMESPACE
#endif // QT_NO_SCRIPT
#endif // QSCRIPTASM_P_H
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