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/*
Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef qscriptengine_p_h
#define qscriptengine_p_h
#include "qscriptconverter_p.h"
#include "qscriptengine.h"
#include "qscriptstring_p.h"
#include "qscriptsyntaxcheckresult_p.h"
#include "qscriptvalue.h"
#include <JavaScriptCore/JavaScript.h>
#include <JSBasePrivate.h>
#include <QtCore/qshareddata.h>
#include <QtCore/qstring.h>
class QScriptEngine;
class QScriptSyntaxCheckResultPrivate;
class QScriptEnginePrivate : public QSharedData {
public:
static QScriptEnginePrivate* get(const QScriptEngine* q) { Q_ASSERT(q); return q->d_ptr.data(); }
static QScriptEngine* get(const QScriptEnginePrivate* d) { Q_ASSERT(d); return d->q_ptr; }
QScriptEnginePrivate(const QScriptEngine*);
~QScriptEnginePrivate();
QScriptSyntaxCheckResultPrivate* checkSyntax(const QString& program);
QScriptValuePrivate* evaluate(const QString& program, const QString& fileName, int lineNumber);
QScriptValuePrivate* evaluate(const QScriptProgramPrivate* program);
inline JSValueRef evaluate(JSStringRef program, JSStringRef fileName, int lineNumber);
inline void collectGarbage();
inline void reportAdditionalMemoryCost(int cost);
inline JSValueRef makeJSValue(double number) const;
inline JSValueRef makeJSValue(int number) const;
inline JSValueRef makeJSValue(uint number) const;
inline JSValueRef makeJSValue(const QString& string) const;
inline JSValueRef makeJSValue(bool number) const;
inline JSValueRef makeJSValue(QScriptValue::SpecialValue value) const;
QScriptValuePrivate* globalObject() const;
inline QScriptStringPrivate* toStringHandle(const QString& str) const;
inline JSGlobalContextRef context() const;
private:
QScriptEngine* q_ptr;
JSGlobalContextRef m_context;
};
/*!
Evaluates given JavaScript program and returns result of the evaluation.
\attention this function doesn't take ownership of the parameters.
\internal
*/
JSValueRef QScriptEnginePrivate::evaluate(JSStringRef program, JSStringRef fileName, int lineNumber)
{
JSValueRef exception;
JSValueRef result = JSEvaluateScript(m_context, program, /* Global Object */ 0, fileName, lineNumber, &exception);
if (!result)
return exception; // returns an exception
return result;
}
void QScriptEnginePrivate::collectGarbage()
{
JSGarbageCollect(m_context);
}
void QScriptEnginePrivate::reportAdditionalMemoryCost(int cost)
{
if (cost > 0)
JSReportExtraMemoryCost(m_context, cost);
}
JSValueRef QScriptEnginePrivate::makeJSValue(double number) const
{
return JSValueMakeNumber(m_context, number);
}
JSValueRef QScriptEnginePrivate::makeJSValue(int number) const
{
return JSValueMakeNumber(m_context, number);
}
JSValueRef QScriptEnginePrivate::makeJSValue(uint number) const
{
return JSValueMakeNumber(m_context, number);
}
JSValueRef QScriptEnginePrivate::makeJSValue(const QString& string) const
{
JSStringRef tmp = QScriptConverter::toString(string);
JSValueRef result = JSValueMakeString(m_context, tmp);
JSStringRelease(tmp);
return result;
}
JSValueRef QScriptEnginePrivate::makeJSValue(bool value) const
{
return JSValueMakeBoolean(m_context, value);
}
JSValueRef QScriptEnginePrivate::makeJSValue(QScriptValue::SpecialValue value) const
{
if (value == QScriptValue::NullValue)
return JSValueMakeNull(m_context);
return JSValueMakeUndefined(m_context);
}
QScriptStringPrivate* QScriptEnginePrivate::toStringHandle(const QString& str) const
{
return new QScriptStringPrivate(str);
}
JSGlobalContextRef QScriptEnginePrivate::context() const
{
return m_context;
}
#endif
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