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// Copyright (C) 2019 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#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;
QV4::CompiledData::CompilationUnit *compilationUnit() 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 *);
QQmlType qmlType(const QString &inlineComponentName = QString()) const;
QByteArray typeClassName() const { return m_typeClassName; }
SourceCodeData backupSourceCode() const { return m_backupSourceCode; }
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:
using InlineComponentData = QV4::CompiledData::InlineComponentData;
bool tryLoadFromDiskCache();
bool loadFromSource();
void restoreIR(const QQmlRefPointer<QV4::CompiledData::CompilationUnit> &unit);
void continueLoadFromIR();
void resolveTypes();
QQmlError buildTypeResolutionCaches(
QQmlRefPointer<QQmlTypeNameCache> *typeNameCache,
QV4::CompiledData::ResolvedTypeReferenceMap *resolvedTypeCache
) const;
void compile(const QQmlRefPointer<QQmlTypeNameCache> &typeNameCache,
QV4::CompiledData::ResolvedTypeReferenceMap *resolvedTypeCache,
const QV4::CompiledData::DependentTypesHasher &dependencyHasher);
QQmlError createTypeAndPropertyCaches(
const QQmlRefPointer<QQmlTypeNameCache> &typeNameCache,
const QV4::CompiledData::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 &nameSpace, const QString &qualifier) 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 invalid.
QQmlType m_qmlType;
QByteArray m_typeClassName; // used for meta-object later
using CompilationUnitPtr = QQmlRefPointer<QV4::CompiledData::CompilationUnit>;
QHash<QString, InlineComponentData> m_inlineComponentData;
CompilationUnitPtr m_compiledData;
QList<TypeDataCallback *> m_callbacks;
bool m_implicitImportLoaded;
bool loadImplicitImport();
};
QT_END_NAMESPACE
#endif // QQMLTYPEDATA_P_H
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