source: trunk/src/script/qscriptcontextfwd_p.h@ 82

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** This file is part of the QtScript module of the Qt Toolkit.
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#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;