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/****************************************************************************
**
** Copyright (C) 2019 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 QQMLTYPEDATA_P_H
#define QQMLTYPEDATA_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/qqmltypeloader_p.h>
#include <private/qv4executablecompilationunit_p.h>
QT_BEGIN_NAMESPACE
class Q_AUTOTEST_EXPORT QQmlTypeData : public QQmlTypeLoader::Blob
{
Q_DECLARE_TR_FUNCTIONS(QQmlTypeData)
public:
struct TypeReference
{
TypeReference() : version(QTypeRevision::zero()), needsCreation(true) {}
QV4::CompiledData::Location location;
QQmlType type;
QTypeRevision version;
QQmlRefPointer<QQmlTypeData> typeData;
bool selfReference = false;
QString prefix; // used by CompositeSingleton types
QString qualifiedName() const;
bool needsCreation;
};
struct ScriptReference
{
QV4::CompiledData::Location location;
QString qualifier;
QQmlRefPointer<QQmlScriptBlob> script;
};
private:
friend class QQmlTypeLoader;
QQmlTypeData(const QUrl &, QQmlTypeLoader *);
template<typename Container>
void setCompileUnit(const Container &container);
public:
~QQmlTypeData() override;
const QList<ScriptReference> &resolvedScripts() const;
QV4::ExecutableCompilationUnit *compilationUnit() const;
QV4::ExecutableCompilationUnit *compilationUnitForInlineComponent(unsigned int icObjectId) const;
// Used by QQmlComponent to get notifications
struct TypeDataCallback {
virtual ~TypeDataCallback();
virtual void typeDataProgress(QQmlTypeData *, qreal) {}
virtual void typeDataReady(QQmlTypeData *) {}
};
void registerCallback(TypeDataCallback *);
void unregisterCallback(TypeDataCallback *);
CompositeMetaTypeIds typeIds(int objectId = 0) const;
QByteArray typeClassName() const { return m_typeClassName; }
protected:
void done() override;
void completed() override;
void dataReceived(const SourceCodeData &) override;
void initializeFromCachedUnit(const QQmlPrivate::CachedQmlUnit *unit) override;
void allDependenciesDone() override;
void downloadProgressChanged(qreal) override;
QString stringAt(int index) const override;
private:
bool tryLoadFromDiskCache();
bool loadFromSource();
void restoreIR(QV4::CompiledData::CompilationUnit &&unit);
void continueLoadFromIR();
void resolveTypes();
QQmlError buildTypeResolutionCaches(
QQmlRefPointer<QQmlTypeNameCache> *typeNameCache,
QV4::ResolvedTypeReferenceMap *resolvedTypeCache
) const;
void compile(const QQmlRefPointer<QQmlTypeNameCache> &typeNameCache,
QV4::ResolvedTypeReferenceMap *resolvedTypeCache,
const QV4::CompiledData::DependentTypesHasher &dependencyHasher);
void createTypeAndPropertyCaches(const QQmlRefPointer<QQmlTypeNameCache> &typeNameCache,
const QV4::ResolvedTypeReferenceMap &resolvedTypeCache);
bool resolveType(const QString &typeName, QTypeRevision &version,
TypeReference &ref, int lineNumber = -1, int columnNumber = -1,
bool reportErrors = true,
QQmlType::RegistrationType registrationType = QQmlType::AnyRegistrationType,
bool *typeRecursionDetected = nullptr);
void scriptImported(const QQmlRefPointer<QQmlScriptBlob> &blob, const QV4::CompiledData::Location &location, const QString &qualifier, const QString &nameSpace) override;
SourceCodeData m_backupSourceCode; // used when cache verification fails.
QScopedPointer<QmlIR::Document> m_document;
QV4::CompiledData::TypeReferenceMap m_typeReferences;
QList<ScriptReference> m_scripts;
QSet<QString> m_namespaces;
QList<TypeReference> m_compositeSingletons;
// map from name index to resolved type
// While this could be a hash, a map is chosen here to provide a stable
// order, which is used to calculating a check-sum on dependent meta-objects.
QMap<int, TypeReference> m_resolvedTypes;
bool m_typesResolved:1;
// Used for self-referencing types, otherwise -1.
CompositeMetaTypeIds m_typeIds;
QByteArray m_typeClassName; // used for meta-object later
using ExecutableCompilationUnitPtr = QQmlRefPointer<QV4::ExecutableCompilationUnit>;
QHash<int, InlineComponentData> m_inlineComponentData;
ExecutableCompilationUnitPtr m_compiledData;
QHash<int, ExecutableCompilationUnitPtr> m_inlineComponentToCompiledData;
QList<TypeDataCallback *> m_callbacks;
bool m_implicitImportLoaded;
bool loadImplicitImport();
};
QT_END_NAMESPACE
#endif // QQMLTYPEDATA_P_H
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