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Diffstat (limited to 'src/script/qscriptextenumeration.cpp')
| -rw-r--r-- | src/script/qscriptextenumeration.cpp | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/src/script/qscriptextenumeration.cpp b/src/script/qscriptextenumeration.cpp new file mode 100644 index 0000000000..4b043a9a62 --- /dev/null +++ b/src/script/qscriptextenumeration.cpp @@ -0,0 +1,209 @@ +/**************************************************************************** +** +** 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. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qscriptextenumeration_p.h" + +#ifndef QT_NO_SCRIPT + +#include "qscriptengine_p.h" +#include "qscriptvalueimpl_p.h" +#include "qscriptcontext_p.h" +#include "qscriptmember_p.h" +#include "qscriptobject_p.h" +#include "qscriptvalueiteratorimpl_p.h" + +#include <QtCore/QtDebug> + +QT_BEGIN_NAMESPACE + +namespace QScript { namespace Ext { + +EnumerationClassData::EnumerationClassData(QScriptClassInfo *classInfo): + m_classInfo(classInfo) +{ +} + +EnumerationClassData::~EnumerationClassData() +{ +} + +void EnumerationClassData::mark(const QScriptValueImpl &object, int generation) +{ + Q_ASSERT(object.isValid()); + + QScriptEnginePrivate *eng = object.engine(); + + if (Enumeration::Instance *instance = Enumeration::Instance::get(object, classInfo())) { + eng->markObject(instance->object, generation); + if (instance->it) + eng->markObject(instance->it->object(), generation); + } +} + +Enumeration::Enumeration(QScriptEnginePrivate *eng): + Ecma::Core(eng, QLatin1String("Enumeration"), QScriptClassInfo::EnumerationType) +{ + classInfo()->setData(new EnumerationClassData(classInfo())); + + newEnumeration(&publicPrototype, eng->newArray()); + + eng->newConstructor(&ctor, this, publicPrototype); + + addPrototypeFunction(QLatin1String("toFront"), method_toFront, 0); + addPrototypeFunction(QLatin1String("hasNext"), method_hasNext, 0); + addPrototypeFunction(QLatin1String("next"), method_next, 0); +} + +Enumeration::~Enumeration() +{ +} + +Enumeration::Instance *Enumeration::Instance::get(const QScriptValueImpl &object, QScriptClassInfo *klass) +{ + if (! klass || klass == object.classInfo()) + return static_cast<Instance*> (object.objectData()); + + return 0; +} + +void Enumeration::execute(QScriptContextPrivate *context) +{ + if (context->argumentCount() > 0) { + newEnumeration(&context->m_result, context->argument(0)); + } else { + context->throwError(QScriptContext::TypeError, + QLatin1String("Enumeration.execute")); + } +} + +void Enumeration::newEnumeration(QScriptValueImpl *result, const QScriptValueImpl &object) +{ + Instance *instance = new Instance(); + instance->object = object; + if (object.isObject()) { + instance->it = new QScriptValueIteratorImpl(object); + instance->it->setIgnoresDontEnum(false); + instance->it->setEnumeratePrototype(true); + } else { + instance->it = 0; + } + engine()->newObject(result, publicPrototype, classInfo()); + result->setObjectData(instance); +} + +QScriptValueImpl Enumeration::method_toFront(QScriptContextPrivate *context, QScriptEnginePrivate *eng, QScriptClassInfo *classInfo) +{ + if (Instance *instance = Instance::get(context->thisObject(), classInfo)) { + if (instance->it) + instance->it->toFront(); + return eng->undefinedValue(); + } else { + return context->throwError(QScriptContext::TypeError, + QLatin1String("Enumeration.toFront")); + } +} + +QScriptValueImpl Enumeration::method_hasNext(QScriptContextPrivate *context, QScriptEnginePrivate *, QScriptClassInfo *classInfo) +{ + Instance *instance = Instance::get(context->thisObject(), classInfo); + if (!instance) { + return context->throwError(QScriptContext::TypeError, + QLatin1String("Enumeration.hasNext")); + } + + QScriptValueImpl v; + instance->hasNext(context, &v); + return v; +} + +QScriptValueImpl Enumeration::method_next(QScriptContextPrivate *context, QScriptEnginePrivate *, QScriptClassInfo *classInfo) +{ + Instance *instance = Instance::get(context->thisObject(), classInfo); + if (!instance) { + return context->throwError(QScriptContext::TypeError, + QLatin1String("Enumeration.next")); + } + + QScriptValueImpl v; + instance->next(context, &v); + return v; +} + +Enumeration::Instance::~Instance() +{ + if (it) { + delete it; + it = 0; + } +} + +void Enumeration::Instance::toFront() +{ + if (it) + it->toFront(); +} + +void Enumeration::Instance::hasNext(QScriptContextPrivate *, QScriptValueImpl *result) +{ + *result = QScriptValueImpl(it && it->hasNext()); +} + +void Enumeration::Instance::next(QScriptContextPrivate *context, QScriptValueImpl *result) +{ + QScriptEnginePrivate *eng = context->engine(); + Q_ASSERT(it != 0); + it->next(); + QScript::Member *member = it->member(); + if (member->isObjectProperty() || member->nameId()) + eng->newNameId(result, member->nameId()); + + else if (member->isNativeProperty() && !member->nameId()) + *result = QScriptValueImpl(uint(member->id())); + + else + *result = eng->undefinedValue(); +} + +} } // namespace QScript::Ext + +QT_END_NAMESPACE + +#endif // QT_NO_SCRIPT |