diff options
Diffstat (limited to 'src/qml/qml/qqmltypeloader_p.h')
| -rw-r--r-- | src/qml/qml/qqmltypeloader_p.h | 434 |
1 files changed, 34 insertions, 400 deletions
diff --git a/src/qml/qml/qqmltypeloader_p.h b/src/qml/qml/qqmltypeloader_p.h index 987e47222d..38a7e05961 100644 --- a/src/qml/qml/qqmltypeloader_p.h +++ b/src/qml/qml/qqmltypeloader_p.h @@ -51,213 +51,27 @@ // We mean it. // +#include <private/qqmldatablob_p.h> +#include <private/qqmlimport_p.h> +#include <private/qqmlmetatype_p.h> + #include <QtQml/qtqmlglobal.h> -#include <QtCore/qobject.h> -#include <QtCore/qatomic.h> -#include <QtCore/qfileinfo.h> -#include <QtCore/qcache.h> -#if QT_CONFIG(qml_network) -#include <QtNetwork/qnetworkreply.h> -#endif #include <QtQml/qqmlerror.h> -#include <QtQml/qqmlengine.h> -#include <QtQml/qqmlfile.h> -#include <QtQml/qqmlabstracturlinterceptor.h> -#include <private/qhashedstring_p.h> -#include <private/qqmlimport_p.h> -#include <private/qqmlcleanup_p.h> -#include <private/qqmldirparser_p.h> -#include <private/qflagpointer_p.h> -#include <private/qqmlirbuilder_p.h> +#include <QtCore/qcache.h> +#include <QtCore/qmutex.h> -#include <private/qv4value_p.h> -#include <private/qv4script_p.h> +#include <memory> QT_BEGIN_NAMESPACE -class QQmlScriptData; class QQmlScriptBlob; class QQmlQmldirData; -class QQmlTypeLoader; -class QQmlComponentPrivate; class QQmlTypeData; -class QQmlTypeLoader; class QQmlExtensionInterface; class QQmlProfiler; -struct QQmlCompileError; - -namespace QmlIR { -struct Document; -} - -class Q_QML_PRIVATE_EXPORT QQmlDataBlob : public QQmlRefCount -{ -public: - enum Status { - Null, // Prior to QQmlTypeLoader::load() - Loading, // Prior to data being received and dataReceived() being called - WaitingForDependencies, // While there are outstanding addDependency()s - ResolvingDependencies, // While resolving outstanding dependencies, to detect cycles - Complete, // Finished - Error // Error - }; - - enum Type { //Matched in QQmlAbstractUrlInterceptor - QmlFile = QQmlAbstractUrlInterceptor::QmlFile, - JavaScriptFile = QQmlAbstractUrlInterceptor::JavaScriptFile, - QmldirFile = QQmlAbstractUrlInterceptor::QmldirFile - }; - - QQmlDataBlob(const QUrl &, Type, QQmlTypeLoader* manager); - ~QQmlDataBlob() override; - - void startLoading(); - - QQmlTypeLoader *typeLoader() const { return m_typeLoader; } - - Type type() const; - - Status status() const; - bool isNull() const; - bool isLoading() const; - bool isWaiting() const; - bool isComplete() const; - bool isError() const; - bool isCompleteOrError() const; - - qreal progress() const; - - QUrl url() const; - QString urlString() const; - QUrl finalUrl() const; - QString finalUrlString() const; - - QList<QQmlError> errors() const; - - class SourceCodeData { - public: - QString readAll(QString *error) const; - QDateTime sourceTimeStamp() const; - bool exists() const; - bool isEmpty() const; - private: - friend class QQmlDataBlob; - friend class QQmlTypeLoader; - QString inlineSourceCode; - QFileInfo fileInfo; - bool hasInlineSourceCode = false; - }; - -protected: - // Can be called from within callbacks - void setError(const QQmlError &); - void setError(const QList<QQmlError> &errors); - void setError(const QQmlCompileError &error); - void setError(const QVector<QQmlCompileError> &errors); - void setError(const QString &description); - void addDependency(QQmlDataBlob *); - - // Callbacks made in load thread - virtual void dataReceived(const SourceCodeData &) = 0; - virtual void initializeFromCachedUnit(const QV4::CompiledData::Unit*) = 0; - virtual void done(); -#if QT_CONFIG(qml_network) - virtual void networkError(QNetworkReply::NetworkError); -#endif - virtual void dependencyError(QQmlDataBlob *); - virtual void dependencyComplete(QQmlDataBlob *); - virtual void allDependenciesDone(); - - // Callbacks made in main thread - virtual void downloadProgressChanged(qreal); - virtual void completed(); - -protected: - // Manager that is currently fetching data for me - QQmlTypeLoader *m_typeLoader; - -private: - friend class QQmlTypeLoader; - friend class QQmlTypeLoaderThread; - - void tryDone(); - void cancelAllWaitingFor(); - void notifyAllWaitingOnMe(); - void notifyComplete(QQmlDataBlob *); - - struct ThreadData { - inline ThreadData(); - inline QQmlDataBlob::Status status() const; - inline void setStatus(QQmlDataBlob::Status); - inline bool isAsync() const; - inline void setIsAsync(bool); - inline quint8 progress() const; - inline void setProgress(quint8); - - private: - QAtomicInt _p; - }; - ThreadData m_data; - - // m_errors should *always* be written before the status is set to Error. - // We use the status change as a memory fence around m_errors so that locking - // isn't required. Once the status is set to Error (or Complete), m_errors - // cannot be changed. - QList<QQmlError> m_errors; - - Type m_type; - - QUrl m_url; - QUrl m_finalUrl; - mutable QString m_urlString; - mutable QString m_finalUrlString; - - // List of QQmlDataBlob's that are waiting for me to complete. - QList<QQmlDataBlob *> m_waitingOnMe; - - // List of QQmlDataBlob's that I am waiting for to complete. - QVector<QQmlRefPointer<QQmlDataBlob>> m_waitingFor; - - int m_redirectCount:30; - bool m_inCallback:1; - bool m_isDone:1; -}; - class QQmlTypeLoaderThread; - -class QQmlTypeLoaderQmldirContent -{ -private: - friend class QQmlTypeLoader; - - void setContent(const QString &location, const QString &content); - void setError(const QQmlError &); - -public: - QQmlTypeLoaderQmldirContent(); - QQmlTypeLoaderQmldirContent(const QQmlTypeLoaderQmldirContent &) = default; - QQmlTypeLoaderQmldirContent &operator=(const QQmlTypeLoaderQmldirContent &) = default; - - bool hasContent() const { return m_hasContent; } - bool hasError() const; - QList<QQmlError> errors(const QString &uri) const; - - QString typeNamespace() const; - - QQmlDirComponents components() const; - QQmlDirScripts scripts() const; - QQmlDirPlugins plugins() const; - - QString pluginLocation() const; - - bool designerSupported() const; - -private: - QQmlDirParser m_parser; - QString m_location; - bool m_hasContent = false; -}; +class QQmlEngine; class Q_QML_PRIVATE_EXPORT QQmlTypeLoader { @@ -275,11 +89,31 @@ public: void setCachedUnitStatus(QQmlMetaType::CachedUnitLookupError status) { m_cachedUnitStatus = status; } + struct PendingImport + { + QV4::CompiledData::Import::ImportType type = QV4::CompiledData::Import::ImportType::ImportLibrary; + + QString uri; + QString qualifier; + + int majorVersion = -1; + int minorVersion = -1; + + QV4::CompiledData::Location location; + + int priority = 0; + + PendingImport() = default; + PendingImport(Blob *blob, const QV4::CompiledData::Import *import); + }; + using PendingImportPtr = std::shared_ptr<PendingImport>; + protected: bool addImport(const QV4::CompiledData::Import *import, QList<QQmlError> *errors); + bool addImport(PendingImportPtr import, QList<QQmlError> *errors); - bool fetchQmldir(const QUrl &url, const QV4::CompiledData::Import *import, int priority, QList<QQmlError> *errors); - bool updateQmldir(const QQmlRefPointer<QQmlQmldirData> &data, const QV4::CompiledData::Import *import, QList<QQmlError> *errors); + bool fetchQmldir(const QUrl &url, PendingImportPtr import, int priority, QList<QQmlError> *errors); + bool updateQmldir(const QQmlRefPointer<QQmlQmldirData> &data, PendingImportPtr import, QList<QQmlError> *errors); private: virtual bool qmldirDataAvailable(const QQmlRefPointer<QQmlQmldirData> &, QList<QQmlError> *); @@ -288,13 +122,16 @@ public: void dependencyComplete(QQmlDataBlob *) override; + bool loadImportDependencies(PendingImportPtr currentImport, const QString &qmldirUri, QList<QQmlError> *errors); + protected: virtual QString stringAt(int) const { return QString(); } bool isDebugging() const; + bool diskCacheEnabled() const; QQmlImports m_importCache; - QHash<const QV4::CompiledData::Import*, int> m_unresolvedImports; + QVector<PendingImportPtr> m_unresolvedImports; QVector<QQmlRefPointer<QQmlQmldirData>> m_qmldirs; QQmlMetaType::CachedUnitLookupError m_cachedUnitStatus = QQmlMetaType::CachedUnitLookupError::NoError; }; @@ -418,209 +255,6 @@ private: friend struct StaticLoader; }; -class Q_AUTOTEST_EXPORT QQmlTypeData : public QQmlTypeLoader::Blob -{ - Q_DECLARE_TR_FUNCTIONS(QQmlTypeData) -public: - struct TypeReference - { - TypeReference() : majorVersion(0), minorVersion(0), needsCreation(true) {} - - QV4::CompiledData::Location location; - QQmlType type; - int majorVersion; - int minorVersion; - QQmlRefPointer<QQmlTypeData> typeData; - 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 *); - -public: - ~QQmlTypeData() override; - - const QList<ScriptReference> &resolvedScripts() const; - - 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 *); - -protected: - void done() override; - void completed() override; - void dataReceived(const SourceCodeData &) override; - void initializeFromCachedUnit(const QV4::CompiledData::Unit *unit) override; - void allDependenciesDone() override; - void downloadProgressChanged(qreal) override; - - QString stringAt(int index) const override; - -private: - bool tryLoadFromDiskCache(); - bool loadFromSource(); - void restoreIR(QQmlRefPointer<QV4::CompiledData::CompilationUnit> unit); - void continueLoadFromIR(); - void resolveTypes(); - QQmlCompileError buildTypeResolutionCaches( - QQmlRefPointer<QQmlTypeNameCache> *typeNameCache, - QV4::CompiledData::ResolvedTypeReferenceMap *resolvedTypeCache - ) const; - void compile(const QQmlRefPointer<QQmlTypeNameCache> &typeNameCache, - QV4::CompiledData::ResolvedTypeReferenceMap *resolvedTypeCache, - const QV4::CompiledData::DependentTypesHasher &dependencyHasher); - void createTypeAndPropertyCaches(const QQmlRefPointer<QQmlTypeNameCache> &typeNameCache, - const QV4::CompiledData::ResolvedTypeReferenceMap &resolvedTypeCache); - bool resolveType(const QString &typeName, int &majorVersion, int &minorVersion, - TypeReference &ref, int lineNumber = -1, int columnNumber = -1, - bool reportErrors = true, - QQmlType::RegistrationType registrationType = QQmlType::AnyRegistrationType); - - 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; - - QQmlRefPointer<QV4::CompiledData::CompilationUnit> m_compiledData; - - QList<TypeDataCallback *> m_callbacks; - - bool m_implicitImportLoaded; - bool loadImplicitImport(); -}; - -// QQmlScriptData instances are created, uninitialized, by the loader in the -// load thread. The first time they are used by the VME, they are initialized which -// creates their v8 objects and they are referenced and added to the engine's cleanup -// list. During QQmlCleanup::clear() all v8 resources are destroyed, and the -// reference that was created is released but final deletion only occurs once all the -// references as released. This is all intended to ensure that the v8 resources are -// only created and destroyed in the main thread :) -class Q_AUTOTEST_EXPORT QQmlScriptData : public QQmlCleanup, public QQmlRefCount -{ -private: - friend class QQmlTypeLoader; - - QQmlScriptData(); - -public: - QUrl url; - QString urlString; - QQmlTypeNameCache *typeNameCache; - QVector<QQmlRefPointer<QQmlScriptBlob>> scripts; - - QV4::ReturnedValue scriptValueForContext(QQmlContextData *parentCtxt); - - QQmlRefPointer<QV4::CompiledData::CompilationUnit> compilationUnit() const { return m_precompiledScript; } - -protected: - void clear() override; // From QQmlCleanup - -private: - friend class QQmlScriptBlob; - - void initialize(QQmlEngine *); - QQmlContextData *qmlContextDataForContext(QQmlContextData *parentQmlContextData); - - bool m_loaded; - QQmlRefPointer<QV4::CompiledData::CompilationUnit> m_precompiledScript; - QV4::PersistentValue m_value; -}; - -class Q_AUTOTEST_EXPORT QQmlScriptBlob : public QQmlTypeLoader::Blob -{ -private: - friend class QQmlTypeLoader; - - QQmlScriptBlob(const QUrl &, QQmlTypeLoader *); - -public: - ~QQmlScriptBlob() override; - - struct ScriptReference - { - QV4::CompiledData::Location location; - QString qualifier; - QString nameSpace; - QQmlRefPointer<QQmlScriptBlob> script; - }; - - QQmlRefPointer<QQmlScriptData> scriptData() const; - -protected: - void dataReceived(const SourceCodeData &) override; - void initializeFromCachedUnit(const QV4::CompiledData::Unit *unit) override; - void done() override; - - QString stringAt(int index) const override; - -private: - void scriptImported(const QQmlRefPointer<QQmlScriptBlob> &blob, const QV4::CompiledData::Location &location, const QString &qualifier, const QString &nameSpace) override; - void initializeFromCompilationUnit(const QQmlRefPointer<QV4::CompiledData::CompilationUnit> &unit); - - QList<ScriptReference> m_scripts; - QQmlRefPointer<QQmlScriptData> m_scriptData; - const bool m_isModule; -}; - -class Q_AUTOTEST_EXPORT QQmlQmldirData : public QQmlTypeLoader::Blob -{ -private: - friend class QQmlTypeLoader; - - QQmlQmldirData(const QUrl &, QQmlTypeLoader *); - -public: - const QString &content() const; - - const QV4::CompiledData::Import *import(QQmlTypeLoader::Blob *) const; - void setImport(QQmlTypeLoader::Blob *, const QV4::CompiledData::Import *); - - int priority(QQmlTypeLoader::Blob *) const; - void setPriority(QQmlTypeLoader::Blob *, int); - -protected: - void dataReceived(const SourceCodeData &) override; - void initializeFromCachedUnit(const QV4::CompiledData::Unit *) override; - -private: - QString m_content; - QHash<QQmlTypeLoader::Blob *, const QV4::CompiledData::Import *> m_imports; - QHash<QQmlTypeLoader::Blob *, int> m_priorities; -}; - - QT_END_NAMESPACE #endif // QQMLTYPELOADER_P_H |