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authorLars Knoll <lars.knoll@nokia.com>2009-03-23 09:18:55 (GMT)
committerSimon Hausmann <simon.hausmann@nokia.com>2009-03-23 09:18:55 (GMT)
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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 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