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/****************************************************************************
**
** Copyright (C) 2022 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the tools applications of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
**
**
**
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**
**
**
******************************************************************************/
#include "qv4resolvedtypereference_p.h"
#include <QtQml/private/qqmlengine_p.h>
#include <QtQml/qqmlpropertymap.h>
#include <QtCore/qcryptographichash.h>
QT_BEGIN_NAMESPACE
namespace QV4 {
template <typename T>
bool qtTypeInherits(const QMetaObject *mo) {
while (mo) {
if (mo == &T::staticMetaObject)
return true;
mo = mo->superClass();
}
return false;
}
void ResolvedTypeReference::doDynamicTypeCheck()
{
const QMetaObject *mo = nullptr;
if (m_typePropertyCache)
mo = m_typePropertyCache->firstCppMetaObject();
else if (m_type.isValid())
mo = m_type.metaObject();
else if (m_compilationUnit)
mo = m_compilationUnit->rootPropertyCache()->firstCppMetaObject();
m_isFullyDynamicType = qtTypeInherits<QQmlPropertyMap>(mo);
}
/*!
Returns the property cache, if one alread exists. The cache is not referenced.
*/
QQmlRefPointer<QQmlPropertyCache> ResolvedTypeReference::propertyCache() const
{
if (m_type.isValid())
return m_typePropertyCache;
else
return m_compilationUnit->rootPropertyCache();
}
/*!
Returns the property cache, creating one if it doesn't already exist. The cache is not referenced.
*/
QQmlRefPointer<QQmlPropertyCache> ResolvedTypeReference::createPropertyCache(QQmlEngine *engine)
{
if (m_typePropertyCache) {
return m_typePropertyCache;
} else if (m_type.isValid()) {
m_typePropertyCache = QQmlEnginePrivate::get(engine)->cache(m_type.metaObject(), m_version);
return m_typePropertyCache;
} else {
Q_ASSERT(m_compilationUnit);
return m_compilationUnit->rootPropertyCache();
}
}
bool ResolvedTypeReference::addToHash(QCryptographicHash *hash, QQmlEngine *engine)
{
if (m_type.isValid() && !m_type.isInlineComponentType()) {
bool ok = false;
hash->addData(createPropertyCache(engine)->checksum(&ok));
return ok;
}
if (!m_compilationUnit)
return false;
hash->addData(m_compilationUnit->data->md5Checksum,
sizeof(m_compilationUnit->data->md5Checksum));
return true;
}
} // namespace QV4
QT_END_NAMESPACE
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