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Diffstat (limited to 'src/script/qscriptcontextfwd_p.h')
| -rw-r--r-- | src/script/qscriptcontextfwd_p.h | 257 |
1 files changed, 257 insertions, 0 deletions
diff --git a/src/script/qscriptcontextfwd_p.h b/src/script/qscriptcontextfwd_p.h new file mode 100644 index 0000000..9b486d6 --- /dev/null +++ b/src/script/qscriptcontextfwd_p.h @@ -0,0 +1,257 @@ +/**************************************************************************** +** +** 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 QSCRIPTCONTEXTFWD_P_H +#define QSCRIPTCONTEXTFWD_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 "qscriptvalueimplfwd_p.h" + +#ifndef QT_NO_SCRIPT + +#include "qscriptcontext.h" + +#include <QtCore/qobjectdefs.h> + +#if defined Q_CC_MSVC && !defined Q_CC_MSVC_NET +#include <QtCore/qnumeric.h> +#endif + +QT_BEGIN_NAMESPACE + +namespace QScript { + namespace AST { + class Node; + } +class Code; +} + +class QScriptInstruction; + +class QScriptContextPrivate +{ + Q_DECLARE_PUBLIC(QScriptContext) +public: + inline QScriptContextPrivate(); + + static inline QScriptContextPrivate *get(QScriptContext *q); + static inline const QScriptContextPrivate *get(const QScriptContext *q); + static QScriptContext *get(QScriptContextPrivate *d); + + static inline QScriptContext *create(); + + inline QScriptEnginePrivate *engine() const; + inline QScriptContextPrivate *parentContext() const; + + inline void init(QScriptContextPrivate *parent); + inline QScriptValueImpl argument(int index) const; + inline int argumentCount() const; + inline QScriptValueImpl argumentsObject() const; + + inline void throwException(); + inline bool hasUncaughtException() const; + const QScriptInstruction *findExceptionHandler(const QScriptInstruction *ip) const; + const QScriptInstruction *findExceptionHandlerRecursive( + const QScriptInstruction *ip, QScriptContextPrivate **handlerContext) const; + QScriptContextPrivate *exceptionHandlerContext() const; + inline void recover(); + QStringList backtrace() const; + + static inline bool isNumerical(const QScriptValueImpl &v); + + static inline bool eq_cmp(const QScriptValueImpl &lhs, const QScriptValueImpl &rhs); + + static bool eq_cmp_helper(QScriptValueImpl lhs, QScriptValueImpl rhs); + +#if defined(Q_CC_GNU) && __GNUC__ <= 3 + static bool lt_cmp(QScriptValueImpl lhs, QScriptValueImpl rhs); +#else + static bool lt_cmp(const QScriptValueImpl &lhs, const QScriptValueImpl &rhs) + { + if (lhs.type() == rhs.type()) { + switch (lhs.type()) { + case QScript::UndefinedType: + case QScript::NullType: + return false; + + case QScript::NumberType: +#if defined Q_CC_MSVC && !defined Q_CC_MSVC_NET + if (qIsNaN(lhs.m_number_value) || qIsNaN(rhs.m_number_value)) + return false; +#endif + return lhs.m_number_value < rhs.m_number_value; + + case QScript::IntegerType: + return lhs.m_int_value < rhs.m_int_value; + + case QScript::BooleanType: + return lhs.m_bool_value < rhs.m_bool_value; + + default: + break; + } // switch + } + + return lt_cmp_helper(lhs, rhs); + } + + static bool lt_cmp_helper(QScriptValueImpl lhs, QScriptValueImpl rhs); +#endif + + static bool le_cmp(const QScriptValueImpl &lhs, const QScriptValueImpl &rhs) + { + if (lhs.type() == rhs.type()) { + switch (lhs.type()) { + case QScript::UndefinedType: + case QScript::NullType: + return true; + + case QScript::NumberType: + return lhs.m_number_value <= rhs.m_number_value; + + case QScript::IntegerType: + return lhs.m_int_value <= rhs.m_int_value; + + case QScript::BooleanType: + return lhs.m_bool_value <= rhs.m_bool_value; + + default: + break; + } // switch + } + + return le_cmp_helper(lhs, rhs); + } + + static bool le_cmp_helper(QScriptValueImpl lhs, QScriptValueImpl rhs); + + static inline bool strict_eq_cmp(const QScriptValueImpl &lhs, const QScriptValueImpl &rhs); + + bool resolveField(QScriptEnginePrivate *eng, QScriptValueImpl *stackPtr, + QScriptValueImpl *value); + + void execute(QScript::Code *code); + + QScriptValueImpl throwError(QScriptContext::Error error, const QString &text); + QScriptValueImpl throwError(const QString &text); + +#ifndef Q_SCRIPT_NO_EVENT_NOTIFY + qint64 scriptId() const; +#endif + QString fileName() const; + QString functionName() const; + void setDebugInformation(QScriptValueImpl *error) const; + + QScriptValueImpl throwNotImplemented(const QString &name); + QScriptValueImpl throwNotDefined(const QString &name); + QScriptValueImpl throwNotDefined(QScriptNameIdImpl *nameId); + + inline QScriptValueImpl throwTypeError(const QString &text); + inline QScriptValueImpl throwSyntaxError(const QString &text); + + inline QScriptValueImpl thisObject() const; + inline void setThisObject(const QScriptValueImpl &object); + + inline QScriptValueImpl callee() const; + inline bool isCalledAsConstructor() const; + + inline QScriptValueImpl returnValue() const; + inline void setReturnValue(const QScriptValueImpl &value); + + inline QScriptValueImpl activationObject() const; + inline void setActivationObject(const QScriptValueImpl &activation); + + inline const QScriptInstruction *instructionPointer(); + inline void setInstructionPointer(const QScriptInstruction *instructionPointer); + + inline const QScriptValueImpl *baseStackPointer() const; + inline const QScriptValueImpl *currentStackPointer() const; + + inline QScriptContext::ExecutionState state() const; + +public: + QScriptContextPrivate *previous; + int argc; + QScriptContext::ExecutionState m_state; + + QScriptValueImpl m_activation; + QScriptValueImpl m_thisObject; + QScriptValueImpl m_result; + QScriptValueImpl m_scopeChain; + QScriptValueImpl m_callee; + QScriptValueImpl m_arguments; + + QScriptValueImpl *args; + QScriptValueImpl *tempStack; + QScriptValueImpl *stackPtr; + + QScript::Code *m_code; + const QScriptInstruction *iPtr; + const QScriptInstruction *firstInstruction; + const QScriptInstruction *lastInstruction; + + int currentLine; + int currentColumn; + + int errorLineNumber; + + bool catching; + bool m_calledAsConstructor; + + int calleeMetaIndex; + + QScriptContext *q_ptr; +}; + +QT_END_NAMESPACE + +#endif // QT_NO_SCRIPT +#endif |