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Diffstat (limited to 'src/declarative/qml/v8/qv8engine_p.h')
| -rw-r--r-- | src/declarative/qml/v8/qv8engine_p.h | 631 |
1 files changed, 0 insertions, 631 deletions
diff --git a/src/declarative/qml/v8/qv8engine_p.h b/src/declarative/qml/v8/qv8engine_p.h deleted file mode 100644 index 4bfb991eae..0000000000 --- a/src/declarative/qml/v8/qv8engine_p.h +++ /dev/null @@ -1,631 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/ -** -** This file is part of the QtDeclarative module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** GNU Lesser General Public License Usage -** This file may be used under the terms of the GNU Lesser General Public -** License version 2.1 as published by the Free Software Foundation and -** appearing in the file LICENSE.LGPL included in the packaging of this -** file. Please review the following information to ensure the GNU Lesser -** General Public License version 2.1 requirements will be met: -** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Nokia gives you certain additional -** rights. These rights are described in the Nokia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU General -** Public License version 3.0 as published by the Free Software Foundation -** and appearing in the file LICENSE.GPL included in the packaging of this -** file. Please review the following information to ensure the GNU General -** Public License version 3.0 requirements will be met: -** http://www.gnu.org/copyleft/gpl.html. -** -** Other Usage -** Alternatively, this file may be used in accordance with the terms and -** conditions contained in a signed written agreement between you and Nokia. -** -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#ifndef QDECLARATIVEV8ENGINE_P_H -#define QDECLARATIVEV8ENGINE_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 <QtCore/qglobal.h> -#include <QtCore/qvariant.h> -#include <QtCore/qset.h> -#include <QtCore/qmutex.h> -#include <QtCore/qstack.h> -#include <QtCore/qstringlist.h> -#include <QtCore/QElapsedTimer> -#include <QtCore/QThreadStorage> - -#include <private/qv8_p.h> -#include <qjsengine.h> -#include <qjsvalue.h> -#include "qjsvalue_p.h" -#include "qjsvalueiterator_p.h" -#include "qscriptoriginalglobalobject_p.h" -#include "qscripttools_p.h" - -#include <private/qdeclarativepropertycache_p.h> - -#include "qv8contextwrapper_p.h" -#include "qv8qobjectwrapper_p.h" -#include "qv8stringwrapper_p.h" -#include "qv8typewrapper_p.h" -#include "qv8listwrapper_p.h" -#include "qv8variantwrapper_p.h" -#include "qv8valuetypewrapper_p.h" -#include "qv8sequencewrapper_p.h" - -QT_BEGIN_NAMESPACE - - -// Uncomment the following line to enable global handle debugging. When enabled, all the persistent -// handles allocated using qPersistentNew() (or registered with qPersistentRegsiter()) and disposed -// with qPersistentDispose() are tracked. If you try and do something illegal, like double disposing -// a handle, qFatal() is called. -// #define QML_GLOBAL_HANDLE_DEBUGGING - -#define V8_RESOURCE_TYPE(resourcetype) \ -public: \ - enum { V8ResourceType = QV8ObjectResource:: resourcetype }; \ - virtual QV8ObjectResource::ResourceType resourceType() const { return QV8ObjectResource:: resourcetype; } \ -private: - -#define V8ENGINE() ((QV8Engine *)v8::External::Unwrap(args.Data())) -#define V8FUNCTION(function, engine) v8::FunctionTemplate::New(function, v8::External::Wrap((QV8Engine*)engine))->GetFunction() -#define V8THROW_ERROR(string) { \ - v8::ThrowException(v8::Exception::Error(v8::String::New(string))); \ - return v8::Handle<v8::Value>(); \ -} -#define V8THROW_TYPE(string) { \ - v8::ThrowException(v8::Exception::TypeError(v8::String::New(string))); \ - return v8::Handle<v8::Value>(); \ -} -#define V8ENGINE_ACCESSOR() ((QV8Engine *)v8::External::Unwrap(info.Data())); -#define V8THROW_ERROR_SETTER(string) { \ - v8::ThrowException(v8::Exception::Error(v8::String::New(string))); \ - return; \ -} - -#define V8_DEFINE_EXTENSION(dataclass, datafunction) \ - static inline dataclass *datafunction(QV8Engine *engine) \ - { \ - static int extensionId = -1; \ - if (extensionId == -1) { \ - QV8Engine::registrationMutex()->lock(); \ - if (extensionId == -1) \ - extensionId = QV8Engine::registerExtension(); \ - QV8Engine::registrationMutex()->unlock(); \ - } \ - dataclass *rv = (dataclass *)engine->extensionData(extensionId); \ - if (!rv) { \ - rv = new dataclass(engine); \ - engine->setExtensionData(extensionId, rv); \ - } \ - return rv; \ - } \ - - -class QV8Engine; -class QV8ObjectResource : public v8::Object::ExternalResource -{ -public: - QV8ObjectResource(QV8Engine *engine) : engine(engine) { Q_ASSERT(engine); } - enum ResourceType { ContextType, QObjectType, TypeType, ListType, VariantType, - ValueTypeType, XMLHttpRequestType, DOMNodeType, SQLDatabaseType, - ListModelType, Context2DType, Context2DStyleType, Context2DPixelArrayType, - ParticleDataType, SignalHandlerType, IncubatorType, VisualDataItemType, - SequenceType, LocaleDataType }; - virtual ResourceType resourceType() const = 0; - - QV8Engine *engine; -}; - -template<class T> -inline T *v8_resource_cast(v8::Handle<v8::Object> object) { - QV8ObjectResource *resource = static_cast<QV8ObjectResource *>(object->GetExternalResource()); - return (resource && (quint32)resource->resourceType() == (quint32)T::V8ResourceType)?static_cast<T *>(resource):0; -} - -template<class T> -inline T *v8_resource_check(v8::Handle<v8::Object> object) { - T *resource = static_cast<T *>(object->GetExternalResource()); - Q_ASSERT(resource && resource->resourceType() == (quint32)T::V8ResourceType); - return resource; -} - -// Used to allow a QObject method take and return raw V8 handles without having to expose -// v8 in the public API. -// Use like this: -// class MyClass : public QObject { -// Q_OBJECT -// ... -// Q_INVOKABLE void myMethod(QDeclarativeV8Function*); -// }; -// The QDeclarativeV8Function - and consequently the arguments and return value - only remains -// valid during the call. If the return value isn't set within myMethod(), the will return -// undefined. -class QV8Engine; -class QDeclarativeV8Function -{ -public: - int Length() const { return _ac; } - v8::Local<v8::Value> operator[](int idx) { return (*_a)->Get(idx); } - QDeclarativeContextData *context() { return _c; } - v8::Handle<v8::Object> qmlGlobal() { return *_g; } - void returnValue(v8::Handle<v8::Value> rv) { *_r = rv; } - QV8Engine *engine() const { return _e; } -private: - friend class QV8QObjectWrapper; - QDeclarativeV8Function(); - QDeclarativeV8Function(const QDeclarativeV8Function &); - QDeclarativeV8Function &operator=(const QDeclarativeV8Function &); - - QDeclarativeV8Function(int length, v8::Handle<v8::Object> &args, - v8::Handle<v8::Value> &rv, v8::Handle<v8::Object> &global, - QDeclarativeContextData *c, QV8Engine *e) - : _ac(length), _a(&args), _r(&rv), _g(&global), _c(c), _e(e) {} - - int _ac; - v8::Handle<v8::Object> *_a; - v8::Handle<v8::Value> *_r; - v8::Handle<v8::Object> *_g; - QDeclarativeContextData *_c; - QV8Engine *_e; -}; - -class QDeclarativeV8Handle -{ -public: - QDeclarativeV8Handle() : d(0) {} - QDeclarativeV8Handle(const QDeclarativeV8Handle &other) : d(other.d) {} - QDeclarativeV8Handle &operator=(const QDeclarativeV8Handle &other) { d = other.d; return *this; } - - static QDeclarativeV8Handle fromHandle(v8::Handle<v8::Value> h) { - return QDeclarativeV8Handle(*h); - } - v8::Handle<v8::Value> toHandle() const { - return v8::Handle<v8::Value>((v8::Value *)d); - } -private: - QDeclarativeV8Handle(void *d) : d(d) {} - void *d; -}; - -class QObject; -class QDeclarativeEngine; -class QDeclarativeValueType; -class QNetworkAccessManager; -class QDeclarativeContextData; - -class Q_AUTOTEST_EXPORT QV8GCCallback -{ -private: - class ThreadData; -public: - static void garbageCollectorPrologueCallback(v8::GCType, v8::GCCallbackFlags); - static void registerGcPrologueCallback(); - - class Q_AUTOTEST_EXPORT Node { - public: - typedef void (*PrologueCallback)(Node *node); - Node(PrologueCallback callback); - ~Node(); - - QIntrusiveListNode node; - PrologueCallback prologueCallback; - }; - - static void addGcCallbackNode(Node *node); -}; - -class Q_DECLARATIVE_EXPORT QV8Engine -{ -public: - static QV8Engine* get(QJSEngine* q) { Q_ASSERT(q); return q->handle(); } - static QJSEngine* get(QV8Engine* d) { Q_ASSERT(d); return d->q; } - - QV8Engine(QJSEngine* qq,QJSEngine::ContextOwnership ownership = QJSEngine::CreateNewContext); - virtual ~QV8Engine(); - - // This enum should be in sync with QDeclarativeEngine::ObjectOwnership - enum ObjectOwnership { CppOwnership, JavaScriptOwnership }; - - struct Deletable { - virtual ~Deletable() {} - }; - - class Exception - { - typedef QPair<v8::Persistent<v8::Value>, v8::Persistent<v8::Message> > ValueMessagePair; - - v8::Persistent<v8::Value> m_value; - v8::Persistent<v8::Message> m_message; - QStack<ValueMessagePair> m_stack; - - Q_DISABLE_COPY(Exception) - public: - inline Exception(); - inline ~Exception(); - inline void set(v8::Handle<v8::Value> value, v8::Handle<v8::Message> message); - inline void clear(); - inline operator bool() const; - inline operator v8::Handle<v8::Value>() const; - inline int lineNumber() const; - inline QStringList backtrace() const; - - inline void push(); - inline void pop(); - }; - - void initDeclarativeGlobalObject(); - void setEngine(QDeclarativeEngine *engine); - QDeclarativeEngine *engine() { return m_engine; } - v8::Local<v8::Object> global() { return m_context->Global(); } - v8::Handle<v8::Context> context() const { return m_context; } - - inline void registerValue(QJSValuePrivate *data); - inline void unregisterValue(QJSValuePrivate *data); - inline void invalidateAllValues(); - - inline void registerValueIterator(QJSValueIteratorPrivate *data); - inline void unregisterValueIterator(QJSValueIteratorPrivate *data); - inline void invalidateAllIterators(); - - QV8ContextWrapper *contextWrapper() { return &m_contextWrapper; } - QV8QObjectWrapper *qobjectWrapper() { return &m_qobjectWrapper; } - QV8TypeWrapper *typeWrapper() { return &m_typeWrapper; } - QV8ListWrapper *listWrapper() { return &m_listWrapper; } - QV8VariantWrapper *variantWrapper() { return &m_variantWrapper; } - QV8ValueTypeWrapper *valueTypeWrapper() { return &m_valueTypeWrapper; } - QV8SequenceWrapper *sequenceWrapper() { return &m_sequenceWrapper; } - - void *xmlHttpRequestData() { return m_xmlHttpRequestData; } - - Deletable *listModelData() { return m_listModelData; } - void setListModelData(Deletable *d) { if (m_listModelData) delete m_listModelData; m_listModelData = d; } - - QDeclarativeContextData *callingContext(); - - v8::Local<v8::Array> getOwnPropertyNames(v8::Handle<v8::Object>); - inline QJSValuePrivate::PropertyFlags getPropertyFlags(v8::Handle<v8::Object> object, v8::Handle<v8::Value> property); - void freezeObject(v8::Handle<v8::Value>); - - inline QString toString(v8::Handle<v8::Value> string); - inline QString toString(v8::Handle<v8::String> string); - static QString toStringStatic(v8::Handle<v8::Value>); - static QString toStringStatic(v8::Handle<v8::String>); - static inline bool startsWithUpper(v8::Handle<v8::String>); - - QVariant toVariant(v8::Handle<v8::Value>, int typeHint); - v8::Handle<v8::Value> fromVariant(const QVariant &); - inline bool isVariant(v8::Handle<v8::Value>); - - // Compile \a source (from \a fileName at \a lineNumber) in QML mode - v8::Local<v8::Script> qmlModeCompile(const QString &source, - const QString &fileName = QString(), - int lineNumber = 1); - v8::Local<v8::Script> qmlModeCompile(const char *source, int sourceLength = -1, - const QString &fileName = QString(), - int lineNumber = 1); - - // Return the QML global "scope" object for the \a ctxt context and \a scope object. - inline v8::Local<v8::Object> qmlScope(QDeclarativeContextData *ctxt, QObject *scope); - - // Return a JS wrapper for the given QObject \a object - inline v8::Handle<v8::Value> newQObject(QObject *object); - inline v8::Handle<v8::Value> newQObject(QObject *object, const ObjectOwnership ownership); - inline bool isQObject(v8::Handle<v8::Value>); - inline QObject *toQObject(v8::Handle<v8::Value>); - - // Return a JS string for the given QString \a string - inline v8::Local<v8::String> toString(const QString &string); - - // Create a new value type object - inline v8::Handle<v8::Value> newValueType(QObject *, int coreIndex, QDeclarativeValueType *); - inline v8::Handle<v8::Value> newValueType(const QVariant &, QDeclarativeValueType *); - - // Create a new sequence type object - inline v8::Handle<v8::Value> newSequence(int sequenceType, QObject *, int coreIndex, bool *succeeded); - - // Create a new QVariant object. This doesn't examine the type of the variant, but always returns - // a QVariant wrapper - inline v8::Handle<v8::Value> newQVariant(const QVariant &); - - // Return the network access manager for this engine. By default this returns the network - // access manager of the QDeclarativeEngine. It is overridden in the case of a threaded v8 - // instance (like in WorkerScript). - virtual QNetworkAccessManager *networkAccessManager(); - - // Return the list of illegal id names (the names of the properties on the global object) - const QStringHash<bool> &illegalNames() const; - - inline void collectGarbage() { gc(); } - static void gc(); - - void clearExceptions(); - void setException(v8::Handle<v8::Value> value, v8::Handle<v8::Message> message = v8::Handle<v8::Message>()); - v8::Handle<v8::Value> throwException(v8::Handle<v8::Value> value); - bool hasUncaughtException() const; - int uncaughtExceptionLineNumber() const; - QStringList uncaughtExceptionBacktrace() const; - v8::Handle<v8::Value> uncaughtException() const; - void saveException(); - void restoreException(); - -#ifdef QML_GLOBAL_HANDLE_DEBUGGING - // Used for handle debugging - static void registerHandle(void *); - static void releaseHandle(void *); -#endif - - static QMutex *registrationMutex(); - static int registerExtension(); - - inline Deletable *extensionData(int) const; - void setExtensionData(int, Deletable *); - - inline v8::Handle<v8::Value> makeJSValue(bool value); - inline v8::Local<v8::Value> makeJSValue(int value); - inline v8::Local<v8::Value> makeJSValue(uint value); - inline v8::Local<v8::Value> makeJSValue(double value); - inline v8::Handle<v8::Value> makeJSValue(QJSValue::SpecialValue value); - inline v8::Local<v8::Value> makeJSValue(const QString &value); - - inline QScriptPassPointer<QJSValuePrivate> evaluate(const QString &program, const QString &fileName = QString(), int lineNumber = 1); - QScriptPassPointer<QJSValuePrivate> evaluate(v8::Handle<v8::Script> script, v8::TryCatch& tryCatch); - - QScriptPassPointer<QJSValuePrivate> newArray(uint length); - v8::Local<v8::Object> newVariant(const QVariant &variant); - - v8::Local<v8::Array> variantListToJS(const QVariantList &lst); - QVariantList variantListFromJS(v8::Handle<v8::Array> jsArray); - - v8::Local<v8::Object> variantMapToJS(const QVariantMap &vmap); - QVariantMap variantMapFromJS(v8::Handle<v8::Object> jsObject); - - v8::Handle<v8::Value> variantToJS(const QVariant &value); - QVariant variantFromJS(v8::Handle<v8::Value> value); - - v8::Handle<v8::Value> metaTypeToJS(int type, const void *data); - bool metaTypeFromJS(v8::Handle<v8::Value> value, int type, void *data); - - bool convertToNativeQObject(v8::Handle<v8::Value> value, - const QByteArray &targetType, - void **result); - - QVariant &variantValue(v8::Handle<v8::Value> value); - - QJSValue scriptValueFromInternal(v8::Handle<v8::Value>) const; - - void emitSignalHandlerException(); - - // used for console.time(), console.timeEnd() - void startTimer(const QString &timerName); - qint64 stopTimer(const QString &timerName, bool *wasRunning); - - // used for console.count() - int consoleCountHelper(const QString &file, int line, int column); - - QObject *qtObjectFromJS(v8::Handle<v8::Value> value); - QSet<int> visitedConversionObjects; - - static QDateTime qtDateTimeFromJsDate(double jsDate); - - void addRelationshipForGC(QObject *object, v8::Persistent<v8::Value> handle); - void addRelationshipForGC(QObject *object, QObject *other); - - struct ThreadData { - ThreadData(); - ~ThreadData(); - v8::Isolate* isolate; - bool gcPrologueCallbackRegistered; - QIntrusiveList<QV8GCCallback::Node, &QV8GCCallback::Node::node> gcCallbackNodes; - }; - - static bool hasThreadData(); - static ThreadData* threadData(); - static void ensurePerThreadIsolate(); - - v8::Persistent<v8::Object> m_strongReferencer; - -protected: - QJSEngine* q; - QDeclarativeEngine *m_engine; - bool m_ownsV8Context; - v8::Persistent<v8::Context> m_context; - QScriptOriginalGlobalObject m_originalGlobalObject; - - QV8StringWrapper m_stringWrapper; - QV8ContextWrapper m_contextWrapper; - QV8QObjectWrapper m_qobjectWrapper; - QV8TypeWrapper m_typeWrapper; - QV8ListWrapper m_listWrapper; - QV8VariantWrapper m_variantWrapper; - QV8ValueTypeWrapper m_valueTypeWrapper; - QV8SequenceWrapper m_sequenceWrapper; - - v8::Persistent<v8::Function> m_getOwnPropertyNames; - v8::Persistent<v8::Function> m_freezeObject; - - void *m_xmlHttpRequestData; - - QVector<Deletable *> m_extensionData; - Deletable *m_listModelData; - - QStringHash<bool> m_illegalNames; - - Exception m_exception; - - QElapsedTimer m_time; - QHash<QString, qint64> m_startedTimers; - - QHash<QString, quint32> m_consoleCount; - - QVariant toBasicVariant(v8::Handle<v8::Value>); - - void initializeGlobal(v8::Handle<v8::Object>); - - double qtDateTimeToJsDate(const QDateTime &dt); - -private: - static v8::Persistent<v8::Object> *findOwnerAndStrength(QObject *object, bool *shouldBeStrong); - - typedef QScriptIntrusiveList<QJSValuePrivate, &QJSValuePrivate::m_node> ValueList; - ValueList m_values; - typedef QScriptIntrusiveList<QJSValueIteratorPrivate, &QJSValueIteratorPrivate::m_node> ValueIteratorList; - ValueIteratorList m_valueIterators; - - Q_DISABLE_COPY(QV8Engine) -}; - -// Allocate a new Persistent handle. *ALL* persistent handles in QML must be allocated -// using this method. -template<class T> -v8::Persistent<T> qPersistentNew(v8::Handle<T> that) -{ - v8::Persistent<T> rv = v8::Persistent<T>::New(that); -#ifdef QML_GLOBAL_HANDLE_DEBUGGING - QV8Engine::registerHandle(*rv); -#endif - return rv; -} - -// Register a Persistent handle that was returned to you by V8 (such as by -// v8::Context::New). This allows us to do handle tracking on these handles too. -template<class T> -void qPersistentRegister(v8::Persistent<T> handle) -{ -#ifdef QML_GLOBAL_HANDLE_DEBUGGING - QV8Engine::registerHandle(*handle); -#else - Q_UNUSED(handle); -#endif -} - -// Dispose and clear a persistent handle. *ALL* persistent handles in QML must be -// disposed using this method. -template<class T> -void qPersistentDispose(v8::Persistent<T> &that) -{ -#ifdef QML_GLOBAL_HANDLE_DEBUGGING - QV8Engine::releaseHandle(*that); -#endif - that.Dispose(); - that.Clear(); -} - -QString QV8Engine::toString(v8::Handle<v8::Value> string) -{ - return m_stringWrapper.toString(string->ToString()); -} - -QString QV8Engine::toString(v8::Handle<v8::String> string) -{ - return m_stringWrapper.toString(string); -} - -bool QV8Engine::isVariant(v8::Handle<v8::Value> value) -{ - return m_variantWrapper.isVariant(value); -} - -v8::Local<v8::Object> QV8Engine::qmlScope(QDeclarativeContextData *ctxt, QObject *scope) -{ - return m_contextWrapper.qmlScope(ctxt, scope); -} - -bool QV8Engine::isQObject(v8::Handle<v8::Value> obj) -{ - return obj->IsObject()?m_qobjectWrapper.isQObject(v8::Handle<v8::Object>::Cast(obj)):false; -} - -QObject *QV8Engine::toQObject(v8::Handle<v8::Value> obj) -{ - return obj->IsObject()?m_qobjectWrapper.toQObject(v8::Handle<v8::Object>::Cast(obj)):0; -} - -v8::Handle<v8::Value> QV8Engine::newQObject(QObject *object) -{ - return m_qobjectWrapper.newQObject(object); -} - -v8::Handle<v8::Value> QV8Engine::newQObject(QObject *object, const ObjectOwnership ownership) -{ - if (!object) - return v8::Null(); - - v8::Handle<v8::Value> result = newQObject(object); - QDeclarativeData *ddata = QDeclarativeData::get(object, true); - if (ownership == JavaScriptOwnership && ddata) { - ddata->indestructible = false; - ddata->explicitIndestructibleSet = true; - } - return result; -} - -v8::Local<v8::String> QV8Engine::toString(const QString &string) -{ - return m_stringWrapper.toString(string); -} - -v8::Handle<v8::Value> QV8Engine::newValueType(QObject *object, int property, QDeclarativeValueType *type) -{ - return m_valueTypeWrapper.newValueType(object, property, type); -} - -v8::Handle<v8::Value> QV8Engine::newValueType(const QVariant &value, QDeclarativeValueType *type) -{ - return m_valueTypeWrapper.newValueType(value, type); -} - -v8::Handle<v8::Value> QV8Engine::newSequence(int sequenceType, QObject *object, int property, bool *succeeded) -{ - return m_sequenceWrapper.newSequence(sequenceType, object, property, succeeded); -} - -// XXX Can this be made more optimal? It is called prior to resolving each and every -// unqualified name in QV8ContextWrapper. -bool QV8Engine::startsWithUpper(v8::Handle<v8::String> string) -{ - uint16_t c = string->GetCharacter(0); - return (c >= 'A' && c <= 'Z') || - (c > 127 && QChar::category(c) == QChar::Letter_Uppercase); -} - -QV8Engine::Deletable *QV8Engine::extensionData(int index) const -{ - if (index < m_extensionData.count()) - return m_extensionData[index]; - else - return 0; -} - -QT_END_NAMESPACE - -#endif // QDECLARATIVEV8ENGINE_P_H |