JavaScriptCore-903.tar.gz

[apple/javascriptcore.git] / qt / api / qscriptvalueiterator_p.h

diff --git a/qt/api/qscriptvalueiterator_p.h b/qt/api/qscriptvalueiterator_p.h
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+/*
+    Copyright (C) 2010 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 qscriptvalueiterator_p_h
+#define qscriptvalueiterator_p_h
+
+#include "qscriptvalue_p.h"
+#include <JavaScriptCore/JavaScript.h>
+#include <JavaScriptCore/JSRetainPtr.h>
+#include <QtCore/qshareddata.h>
+#include <QtCore/qvector.h>
+
+class QScriptValueIteratorPrivate: public QSharedData {
+public:
+    inline QScriptValueIteratorPrivate(const QScriptValuePrivate* value);
+    inline ~QScriptValueIteratorPrivate();
+
+    inline bool hasNext();
+    inline void next();
+
+    inline bool hasPrevious();
+    inline void previous();
+
+    inline QString name() const;
+    inline QScriptStringPrivate* scriptName() const;
+
+    inline QScriptValuePrivate* value() const;
+    inline void setValue(const QScriptValuePrivate* value);
+
+    inline void remove();
+
+    inline void toFront();
+    inline void toBack();
+
+    QScriptValue::PropertyFlags flags() const;
+
+    inline bool isValid() const;
+private:
+    inline QScriptEnginePrivate* engine() const;
+
+    QExplicitlySharedDataPointer<QScriptValuePrivate> m_object;
+    QVector<JSStringRef> m_names;
+    QMutableVectorIterator<JSStringRef> m_idx;
+};
+
+inline QScriptValueIteratorPrivate::QScriptValueIteratorPrivate(const QScriptValuePrivate* value)
+    : m_object(const_cast<QScriptValuePrivate*>(value))
+    , m_idx(m_names)
+{
+    if (m_object->isObject()) {
+        m_names = engine()->objectGetOwnPropertyNames(*m_object);
+        m_idx = m_names;
+    } else
+        m_object = 0;
+}
+
+inline QScriptValueIteratorPrivate::~QScriptValueIteratorPrivate()
+{
+    QVector<JSStringRef>::const_iterator i = m_names.constBegin();
+    for (; i != m_names.constEnd(); ++i)
+        JSStringRelease(*i);
+}
+
+inline bool QScriptValueIteratorPrivate::hasNext()
+{
+    return m_idx.hasNext();
+}
+
+inline void QScriptValueIteratorPrivate::next()
+{
+    // FIXME (Qt5) This method should return a value (QTBUG-11226).
+    m_idx.next();
+}
+
+inline bool QScriptValueIteratorPrivate::hasPrevious()
+{
+    return m_idx.hasPrevious();
+}
+
+inline void QScriptValueIteratorPrivate::previous()
+{
+    m_idx.previous();
+}
+
+inline QString QScriptValueIteratorPrivate::name() const
+{
+    if (!isValid())
+        return QString();
+    return QScriptConverter::toString(m_idx.value());
+}
+
+inline QScriptStringPrivate* QScriptValueIteratorPrivate::scriptName() const
+{
+    if (!isValid())
+        return new QScriptStringPrivate();
+    return new QScriptStringPrivate(QScriptConverter::toString(m_idx.value()));
+}
+
+inline QScriptValuePrivate* QScriptValueIteratorPrivate::value() const
+{
+    if (!isValid())
+        return new QScriptValuePrivate();
+    JSValueRef exception = 0;
+    JSValueRef value = m_object->property(m_idx.value(), &exception);
+    engine()->setException(exception);
+    return new QScriptValuePrivate(engine(), value);
+}
+
+inline void QScriptValueIteratorPrivate::setValue(const QScriptValuePrivate* value)
+{
+    if (!isValid())
+        return;
+    JSValueRef exception = 0;
+    m_object->setProperty(m_idx.value(), *value, /* flags */ 0, &exception);
+    engine()->setException(exception);
+}
+
+inline void QScriptValueIteratorPrivate::remove()
+{
+    if (!isValid())
+        return;
+    JSValueRef exception = 0;
+    m_object->deleteProperty(m_idx.value(), &exception);
+    engine()->setException(exception);
+    m_idx.remove();
+}
+
+inline void QScriptValueIteratorPrivate::toFront()
+{
+    m_idx.toFront();
+}
+
+inline void QScriptValueIteratorPrivate::toBack()
+{
+    m_idx.toBack();
+}
+
+QScriptValue::PropertyFlags QScriptValueIteratorPrivate::flags() const
+{
+    if (!isValid())
+        return QScriptValue::PropertyFlags(0);
+    return m_object->propertyFlags(m_idx.value(), QScriptValue::ResolveLocal);
+}
+
+inline bool QScriptValueIteratorPrivate::isValid() const
+{
+    return m_object;
+}
+
+inline QScriptEnginePrivate* QScriptValueIteratorPrivate::engine() const
+{
+    Q_ASSERT(isValid());
+    return m_object->engine();
+}
+
+#endif // qscriptvalueiterator_p_h