| /**************************************************************************** |
| ** |
| ** Copyright (C) 2015 The Qt Company Ltd. |
| ** Contact: http://www.qt.io/licensing/ |
| ** |
| ** This file is part of the QtScript module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** Commercial License Usage |
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| ** accordance with the commercial license agreement provided with the |
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| ** packaging of this file. Please review the following information to |
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| ** |
| ** 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 |
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| ** $QT_END_LICENSE$ |
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| ****************************************************************************/ |
| |
| #ifndef QSCRIPTQOBJECT_P_H |
| #define QSCRIPTQOBJECT_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 "qscriptobject_p.h" |
| |
| #include "qscriptengine.h" |
| #include <QtCore/qpointer.h> |
| |
| #include "InternalFunction.h" |
| |
| QT_BEGIN_NAMESPACE |
| |
| namespace QScript |
| { |
| |
| enum AttributeExtension { |
| // ### Make sure there's no conflict with JSC::Attribute |
| QObjectMemberAttribute = 1 << 12 |
| }; |
| |
| class QObjectDelegate : public QScriptObjectDelegate |
| { |
| public: |
| struct Data |
| { |
| QPointer<QObject> value; |
| QScriptEngine::ValueOwnership ownership; |
| QScriptEngine::QObjectWrapOptions options; |
| |
| QHash<QByteArray, JSC::JSValue> cachedMembers; |
| |
| Data(QObject *o, QScriptEngine::ValueOwnership own, |
| QScriptEngine::QObjectWrapOptions opt) |
| : value(o), ownership(own), options(opt) {} |
| }; |
| |
| QObjectDelegate( |
| QObject *object, QScriptEngine::ValueOwnership ownership, |
| const QScriptEngine::QObjectWrapOptions &options); |
| ~QObjectDelegate(); |
| |
| virtual Type type() const; |
| |
| virtual bool getOwnPropertySlot(QScriptObject*, JSC::ExecState*, |
| const JSC::Identifier& propertyName, |
| JSC::PropertySlot&); |
| virtual bool getOwnPropertyDescriptor(QScriptObject*, JSC::ExecState*, |
| const JSC::Identifier& propertyName, |
| JSC::PropertyDescriptor&); |
| |
| virtual void put(QScriptObject*, JSC::ExecState* exec, |
| const JSC::Identifier& propertyName, |
| JSC::JSValue, JSC::PutPropertySlot&); |
| virtual bool deleteProperty(QScriptObject*, JSC::ExecState*, |
| const JSC::Identifier& propertyName); |
| virtual void getOwnPropertyNames(QScriptObject*, JSC::ExecState*, |
| JSC::PropertyNameArray&, |
| JSC::EnumerationMode mode = JSC::ExcludeDontEnumProperties); |
| virtual void markChildren(QScriptObject*, JSC::MarkStack& markStack); |
| virtual bool compareToObject(QScriptObject*, JSC::ExecState*, JSC::JSObject*); |
| |
| inline QObject *value() const { return data->value; } |
| inline void setValue(QObject* value) { data->value = value; } |
| inline bool hasParent() const { return data->value && data->value->parent(); } |
| |
| inline QScriptEngine::ValueOwnership ownership() const |
| { return data->ownership; } |
| inline void setOwnership(QScriptEngine::ValueOwnership ownership) |
| { data->ownership = ownership; } |
| |
| inline QScriptEngine::QObjectWrapOptions options() const |
| { return data->options; } |
| inline void setOptions(QScriptEngine::QObjectWrapOptions options) |
| { data->options = options; } |
| |
| protected: |
| Data *data; |
| }; |
| |
| class QObjectPrototypeObject : public QObject |
| { |
| Q_OBJECT |
| public: |
| QObjectPrototypeObject(QObject *parent = 0) |
| : QObject(parent) { } |
| ~QObjectPrototypeObject() { } |
| }; |
| |
| class QObjectPrototype : public QScriptObject |
| { |
| public: |
| QObjectPrototype(JSC::ExecState*, WTF::PassRefPtr<JSC::Structure>, |
| JSC::Structure* prototypeFunctionStructure); |
| }; |
| |
| class QObjectConnectionManager; |
| |
| struct QObjectWrapperInfo |
| { |
| QObjectWrapperInfo(QScriptObject *obj, |
| QScriptEngine::ValueOwnership own, |
| const QScriptEngine::QObjectWrapOptions &opt) |
| : object(obj), ownership(own), options(opt) {} |
| |
| QScriptObject *object; |
| QScriptEngine::ValueOwnership ownership; |
| QScriptEngine::QObjectWrapOptions options; |
| |
| // Returns true if this wrapper can be garbage-collected when there are no |
| // other references to it in the JS environment (weak reference), otherwise |
| // returns false (should not be collected). |
| bool isCollectableWhenWeaklyReferenced() const |
| { |
| switch (ownership) { |
| case QScriptEngine::ScriptOwnership: |
| return true; |
| case QScriptEngine::AutoOwnership: { |
| QScriptObjectDelegate *delegate = object->delegate(); |
| Q_ASSERT(delegate && (delegate->type() == QScriptObjectDelegate::QtObject)); |
| return !static_cast<QObjectDelegate *>(delegate)->hasParent(); |
| } |
| default: |
| break; |
| } |
| return false; |
| } |
| }; |
| |
| class QObjectData // : public QObjectUserData |
| { |
| public: |
| QObjectData(QScriptEnginePrivate *engine); |
| ~QObjectData(); |
| |
| bool addSignalHandler(QObject *sender, |
| int signalIndex, |
| JSC::JSValue receiver, |
| JSC::JSValue slot, |
| JSC::JSValue senderWrapper, |
| Qt::ConnectionType type); |
| bool removeSignalHandler(QObject *sender, |
| int signalIndex, |
| JSC::JSValue receiver, |
| JSC::JSValue slot); |
| |
| QScriptObject *findWrapper(QScriptEngine::ValueOwnership ownership, |
| const QScriptEngine::QObjectWrapOptions &options) const; |
| void registerWrapper(QScriptObject *wrapper, |
| QScriptEngine::ValueOwnership ownership, |
| const QScriptEngine::QObjectWrapOptions &options); |
| |
| void clearConnectionMarkBits(); |
| int markConnections(JSC::MarkStack&); |
| void markWrappers(JSC::MarkStack&); |
| |
| private: |
| QScriptEnginePrivate *engine; |
| QScript::QObjectConnectionManager *connectionManager; |
| QList<QScript::QObjectWrapperInfo> wrappers; |
| }; |
| |
| class QtFunction: public JSC::InternalFunction |
| { |
| public: |
| // work around CELL_SIZE limitation |
| struct Data |
| { |
| JSC::JSValue object; |
| int initialIndex; |
| bool maybeOverloaded; |
| |
| Data(JSC::JSValue o, int ii, bool mo) |
| : object(o), initialIndex(ii), maybeOverloaded(mo) {} |
| }; |
| |
| QtFunction(JSC::JSValue object, int initialIndex, bool maybeOverloaded, |
| JSC::JSGlobalData*, WTF::PassRefPtr<JSC::Structure>, const JSC::Identifier&); |
| virtual ~QtFunction(); |
| |
| virtual JSC::CallType getCallData(JSC::CallData&); |
| virtual void markChildren(JSC::MarkStack&); |
| |
| virtual const JSC::ClassInfo* classInfo() const { return &info; } |
| static const JSC::ClassInfo info; |
| |
| static JSC::JSValue JSC_HOST_CALL call(JSC::ExecState*, JSC::JSObject*, |
| JSC::JSValue, const JSC::ArgList&); |
| |
| JSC::JSValue execute(JSC::ExecState *exec, JSC::JSValue thisValue, |
| const JSC::ArgList &args); |
| |
| QScriptObject *wrapperObject() const; |
| QObject *qobject() const; |
| const QMetaObject *metaObject() const; |
| int initialIndex() const; |
| int specificIndex(const QScriptContext *context) const; |
| bool maybeOverloaded() const; |
| int mostGeneralMethod(QMetaMethod *out = 0) const; |
| QList<int> overloadedIndexes() const; |
| |
| private: |
| Data *data; |
| }; |
| |
| class QtPropertyFunction: public JSC::InternalFunction |
| { |
| public: |
| // work around CELL_SIZE limitation |
| struct Data |
| { |
| const QMetaObject *meta; |
| int index; |
| |
| Data(const QMetaObject *m, int i) |
| : meta(m), index(i) {} |
| }; |
| |
| QtPropertyFunction(const QMetaObject *meta, int index, |
| JSC::JSGlobalData*, WTF::PassRefPtr<JSC::Structure>, |
| const JSC::Identifier&); |
| virtual ~QtPropertyFunction(); |
| |
| virtual JSC::CallType getCallData(JSC::CallData&); |
| |
| virtual const JSC::ClassInfo* classInfo() const { return &info; } |
| static const JSC::ClassInfo info; |
| |
| static JSC::JSValue JSC_HOST_CALL call(JSC::ExecState*, JSC::JSObject*, |
| JSC::JSValue, const JSC::ArgList&); |
| |
| JSC::JSValue execute(JSC::ExecState *exec, JSC::JSValue thisValue, |
| const JSC::ArgList &args); |
| |
| const QMetaObject *metaObject() const; |
| int propertyIndex() const; |
| |
| private: |
| Data *data; |
| }; |
| |
| class QMetaObjectWrapperObject : public JSC::JSObject |
| { |
| public: |
| // work around CELL_SIZE limitation |
| struct Data |
| { |
| const QMetaObject *value; |
| JSC::JSValue ctor; |
| JSC::JSValue prototype; |
| |
| Data(const QMetaObject *mo, JSC::JSValue c) |
| : value(mo), ctor(c) {} |
| }; |
| |
| explicit QMetaObjectWrapperObject( |
| JSC::ExecState *, const QMetaObject *metaobject, JSC::JSValue ctor, |
| WTF::PassRefPtr<JSC::Structure> sid); |
| ~QMetaObjectWrapperObject(); |
| |
| virtual bool getOwnPropertySlot(JSC::ExecState*, |
| const JSC::Identifier& propertyName, |
| JSC::PropertySlot&); |
| virtual bool getOwnPropertyDescriptor(JSC::ExecState*, |
| const JSC::Identifier& propertyName, |
| JSC::PropertyDescriptor&); |
| virtual void put(JSC::ExecState* exec, const JSC::Identifier& propertyName, |
| JSC::JSValue, JSC::PutPropertySlot&); |
| virtual bool deleteProperty(JSC::ExecState*, |
| const JSC::Identifier& propertyName); |
| virtual void getOwnPropertyNames(JSC::ExecState*, JSC::PropertyNameArray&, |
| JSC::EnumerationMode mode = JSC::ExcludeDontEnumProperties); |
| virtual void markChildren(JSC::MarkStack& markStack); |
| |
| virtual JSC::CallType getCallData(JSC::CallData&); |
| virtual JSC::ConstructType getConstructData(JSC::ConstructData&); |
| |
| virtual const JSC::ClassInfo* classInfo() const { return &info; } |
| static const JSC::ClassInfo info; |
| |
| static JSC::JSValue JSC_HOST_CALL call(JSC::ExecState*, JSC::JSObject*, |
| JSC::JSValue, const JSC::ArgList&); |
| static JSC::JSObject* construct(JSC::ExecState *, JSC::JSObject *, const JSC::ArgList &); |
| |
| JSC::JSValue execute(JSC::ExecState *exec, const JSC::ArgList &args); |
| |
| inline const QMetaObject *value() const { return data->value; } |
| inline void setValue(const QMetaObject* value) { data->value = value; } |
| |
| static WTF::PassRefPtr<JSC::Structure> createStructure(JSC::JSValue prototype) |
| { |
| return JSC::Structure::create(prototype, JSC::TypeInfo(JSC::ObjectType, StructureFlags)); |
| } |
| |
| protected: |
| static const unsigned StructureFlags = JSC::OverridesGetOwnPropertySlot | JSC::OverridesMarkChildren | JSC::OverridesGetPropertyNames | JSC::ImplementsHasInstance | JSObject::StructureFlags; |
| |
| Data *data; |
| }; |
| |
| class QMetaObjectPrototype : public QMetaObjectWrapperObject |
| { |
| public: |
| QMetaObjectPrototype(JSC::ExecState*, WTF::PassRefPtr<JSC::Structure>, |
| JSC::Structure* prototypeFunctionStructure); |
| }; |
| |
| } // namespace QScript |
| |
| QT_END_NAMESPACE |
| |
| #endif |