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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtQml module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QQMLTYPENAMECACHE_P_H
#define QQMLTYPENAMECACHE_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 <private/qqmlrefcount_p.h>
#include "qqmlcleanup_p.h"
#include "qqmlmetatype_p.h"
#include <private/qhashedstring_p.h>
#include <private/qqmlimport_p.h>
#include <QtCore/qvector.h>
QT_BEGIN_NAMESPACE
class QQmlType;
class QQmlEngine;
class QQmlTypeNameCache : public QQmlRefCount
{
public:
QQmlTypeNameCache(const QQmlImports &imports);
virtual ~QQmlTypeNameCache();
inline bool isEmpty() const;
void add(const QHashedString &name, int sciptIndex = -1, const QHashedString &nameSpace = QHashedString());
void add(const QHashedString &name, const QUrl &url, const QHashedString &nameSpace = QHashedString());
struct Result {
inline Result();
inline Result(const void *importNamespace);
inline Result(QQmlType *type);
inline Result(int scriptIndex);
inline Result(const Result &);
inline bool isValid() const;
QQmlType *type;
const void *importNamespace;
int scriptIndex;
};
Result query(const QHashedStringRef &) const;
Result query(const QHashedStringRef &, const void *importNamespace) const;
Result query(const QV4::String *) const;
Result query(const QV4::String *, const void *importNamespace) const;
private:
friend class QQmlImports;
struct Import {
inline Import();
// Imported module
QVector<QQmlTypeModuleVersion> modules;
// Or, imported script
int scriptIndex;
// Or, imported compositeSingletons
QStringHash<QUrl> compositeSingletons;
// The qualifier of this import
QString m_qualifier;
};
template<typename Key>
Result query(const QStringHash<Import> &imports, Key key) const
{
Import *i = imports.value(key);
if (i) {
Q_ASSERT(!i->m_qualifier.isEmpty());
if (i->scriptIndex != -1) {
return Result(i->scriptIndex);
} else {
return Result(static_cast<const void *>(i));
}
}
return Result();
}
template<typename Key>
Result query(const QStringHash<QUrl> &urls, Key key) const
{
QUrl *url = urls.value(key);
if (url) {
QQmlType *type = QQmlMetaType::qmlType(*url);
if (type)
return Result(type);
}
return Result();
}
template<typename Key>
Result typeSearch(const QVector<QQmlTypeModuleVersion> &modules, Key key) const
{
QVector<QQmlTypeModuleVersion>::const_iterator end = modules.constEnd();
for (QVector<QQmlTypeModuleVersion>::const_iterator it = modules.constBegin(); it != end; ++it) {
if (QQmlType *type = it->type(key))
return Result(type);
}
return Result();
}
QStringHash<Import> m_namedImports;
QMap<const Import *, QStringHash<Import> > m_namespacedImports;
QVector<QQmlTypeModuleVersion> m_anonymousImports;
QStringHash<QUrl> m_anonymousCompositeSingletons;
QQmlImports m_imports;
};
QQmlTypeNameCache::Result::Result()
: type(0), importNamespace(0), scriptIndex(-1)
{
}
QQmlTypeNameCache::Result::Result(const void *importNamespace)
: type(0), importNamespace(importNamespace), scriptIndex(-1)
{
}
QQmlTypeNameCache::Result::Result(QQmlType *type)
: type(type), importNamespace(0), scriptIndex(-1)
{
}
QQmlTypeNameCache::Result::Result(int scriptIndex)
: type(0), importNamespace(0), scriptIndex(scriptIndex)
{
}
QQmlTypeNameCache::Result::Result(const Result &o)
: type(o.type), importNamespace(o.importNamespace), scriptIndex(o.scriptIndex)
{
}
bool QQmlTypeNameCache::Result::isValid() const
{
return type || importNamespace || scriptIndex != -1;
}
QQmlTypeNameCache::Import::Import()
: scriptIndex(-1)
{
}
bool QQmlTypeNameCache::isEmpty() const
{
return m_namedImports.isEmpty() && m_anonymousImports.isEmpty()
&& m_anonymousCompositeSingletons.isEmpty();
}
QT_END_NAMESPACE
#endif // QQMLTYPENAMECACHE_P_H
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