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Diffstat (limited to 'src/qml/jsruntime/qv4managed_p.h')
| -rw-r--r-- | src/qml/jsruntime/qv4managed_p.h | 321 |
1 files changed, 321 insertions, 0 deletions
diff --git a/src/qml/jsruntime/qv4managed_p.h b/src/qml/jsruntime/qv4managed_p.h new file mode 100644 index 0000000000..5e3c142bb8 --- /dev/null +++ b/src/qml/jsruntime/qv4managed_p.h @@ -0,0 +1,321 @@ +/**************************************************************************** +** +** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** 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 Digia. For licensing terms and +** conditions see http://qt.digia.com/licensing. For further information +** use the contact form at http://qt.digia.com/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 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, Digia gives you certain additional +** rights. These rights are described in the Digia 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. +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ +#ifndef QMLJS_MANAGED_H +#define QMLJS_MANAGED_H + +#include <QtCore/QString> +#include <QtCore/QVector> +#include <QtCore/QDebug> +#include "qv4global_p.h" +#include "qv4value_def_p.h" + +QT_BEGIN_NAMESPACE + +namespace QV4 { + +#define Q_MANAGED_CHECK \ + template <typename T> inline void qt_check_for_QMANAGED_macro(const T &_q_argument) const \ + { int i = qYouForgotTheQ_MANAGED_Macro(this, &_q_argument); i = i + 1; } + +template <typename T> +inline int qYouForgotTheQ_MANAGED_Macro(T, T) { return 0; } + +template <typename T1, typename T2> +inline void qYouForgotTheQ_MANAGED_Macro(T1, T2) {} + +#define Q_MANAGED \ + public: \ + Q_MANAGED_CHECK \ + static const QV4::ManagedVTable static_vtbl; + +struct GCDeletable +{ + GCDeletable() : next(0), lastCall(false) {} + virtual ~GCDeletable() {} + GCDeletable *next; + bool lastCall; +}; + +struct ManagedVTable +{ + Value (*call)(Managed *, const Value &thisObject, Value *args, int argc); + Value (*construct)(Managed *, Value *args, int argc); + void (*markObjects)(Managed *); + void (*destroy)(Managed *); + void (*collectDeletables)(Managed *, GCDeletable **deletable); + bool (*hasInstance)(Managed *, const Value &value); + Value (*get)(Managed *, String *name, bool *hasProperty); + Value (*getIndexed)(Managed *, uint index, bool *hasProperty); + void (*put)(Managed *, String *name, const Value &value); + void (*putIndexed)(Managed *, uint index, const Value &value); + PropertyAttributes (*query)(const Managed *, String *name); + PropertyAttributes (*queryIndexed)(const Managed *, uint index); + bool (*deleteProperty)(Managed *m, String *name); + bool (*deleteIndexedProperty)(Managed *m, uint index); + void (*getLookup)(Managed *m, Lookup *l, Value *result); + void (*setLookup)(Managed *m, Lookup *l, const Value &v); + bool (*isEqualTo)(Managed *m, Managed *other); + Property *(*advanceIterator)(Managed *m, ObjectIterator *it, String **name, uint *index, PropertyAttributes *attributes); + const char *className; +}; + +#define DEFINE_MANAGED_VTABLE(classname) \ +const QV4::ManagedVTable classname::static_vtbl = \ +{ \ + call, \ + construct, \ + markObjects, \ + destroy, \ + 0, \ + hasInstance, \ + get, \ + getIndexed, \ + put, \ + putIndexed, \ + query, \ + queryIndexed, \ + deleteProperty, \ + deleteIndexedProperty, \ + getLookup, \ + setLookup, \ + isEqualTo, \ + advanceIterator, \ + #classname \ +} + +#define DEFINE_MANAGED_VTABLE_WITH_DELETABLES(classname) \ +const QV4::ManagedVTable classname::static_vtbl = \ +{ \ + call, \ + construct, \ + markObjects, \ + destroy, \ + collectDeletables, \ + hasInstance, \ + get, \ + getIndexed, \ + put, \ + putIndexed, \ + query, \ + queryIndexed, \ + deleteProperty, \ + deleteIndexedProperty, \ + getLookup, \ + setLookup, \ + isEqualTo, \ + advanceIterator, \ + #classname \ +} + +struct Q_QML_EXPORT Managed +{ +private: + void *operator new(size_t); + Managed(const Managed &other); + void operator = (const Managed &other); + +protected: + Managed(InternalClass *internal) + : _data(0), vtbl(&static_vtbl), internalClass(internal) + { inUse = 1; extensible = 1; } + +public: + void *operator new(size_t size, MemoryManager *mm); + void operator delete(void *ptr); + void operator delete(void *ptr, MemoryManager *mm); + + inline void mark() { + if (markBit) + return; + markBit = 1; + if (vtbl->markObjects) + vtbl->markObjects(this); + } + + enum Type { + Type_Invalid, + Type_String, + Type_Object, + Type_ArrayObject, + Type_FunctionObject, + Type_BooleanObject, + Type_NumberObject, + Type_StringObject, + Type_DateObject, + Type_RegExpObject, + Type_ErrorObject, + Type_ArgumentsObject, + Type_JSONObject, + Type_MathObject, + Type_ForeachIteratorObject, + Type_RegExp, + + Type_QmlSequence + }; + + ExecutionEngine *engine() const; + + template <typename T> + T *as() { +#if !defined(QT_NO_QOBJECT_CHECK) + reinterpret_cast<T *>(this)->qt_check_for_QMANAGED_macro(*reinterpret_cast<T *>(this)); +#endif + return vtbl == &T::static_vtbl ? static_cast<T *>(this) : 0; + } + template <typename T> + const T *as() const { +#if !defined(QT_NO_QOBJECT_CHECK) + reinterpret_cast<T *>(this)->qt_check_for_QMANAGED_macro(*reinterpret_cast<T *>(const_cast<Managed *>(this))); +#endif + return vtbl == &T::static_vtbl ? static_cast<const T *>(this) : 0; + } + + ArrayObject *asArrayObject() { return type == Type_ArrayObject ? reinterpret_cast<ArrayObject *>(this) : 0; } + FunctionObject *asFunctionObject() { return type == Type_FunctionObject ? reinterpret_cast<FunctionObject *>(this) : 0; } + BooleanObject *asBooleanObject() { return type == Type_BooleanObject ? reinterpret_cast<BooleanObject *>(this) : 0; } + NumberObject *asNumberObject() { return type == Type_NumberObject ? reinterpret_cast<NumberObject *>(this) : 0; } + StringObject *asStringObject() { return type == Type_StringObject ? reinterpret_cast<StringObject *>(this) : 0; } + DateObject *asDateObject() { return type == Type_DateObject ? reinterpret_cast<DateObject *>(this) : 0; } + ErrorObject *asErrorObject() { return type == Type_ErrorObject ? reinterpret_cast<ErrorObject *>(this) : 0; } + ArgumentsObject *asArgumentsObject() { return type == Type_ArgumentsObject ? reinterpret_cast<ArgumentsObject *>(this) : 0; } + + bool isListType() const { return type == Type_QmlSequence; } + + bool isArrayObject() const { return type == Type_ArrayObject; } + bool isStringObject() const { return type == Type_StringObject; } + + QString className() const; + + Managed **nextFreeRef() { + return reinterpret_cast<Managed **>(this); + } + Managed *nextFree() { + return *reinterpret_cast<Managed **>(this); + } + void setNextFree(Managed *m) { + *reinterpret_cast<Managed **>(this) = m; + } + + inline bool hasInstance(const Value &v) { + return vtbl->hasInstance(this, v); + } + Value construct(Value *args, int argc); + Value call(const Value &thisObject, Value *args, int argc); + Value get(String *name, bool *hasProperty = 0); + Value getIndexed(uint index, bool *hasProperty = 0); + void put(String *name, const Value &value) + { vtbl->put(this, name, value); } + void putIndexed(uint index, const Value &value) + { vtbl->putIndexed(this, index, value); } + PropertyAttributes query(String *name) const + { return vtbl->query(this, name); } + PropertyAttributes queryIndexed(uint index) const + { return vtbl->queryIndexed(this, index); } + + bool deleteProperty(String *name) + { return vtbl->deleteProperty(this, name); } + bool deleteIndexedProperty(uint index) + { return vtbl->deleteIndexedProperty(this, index); } + void getLookup(Lookup *l, Value *result) + { vtbl->getLookup(this, l, result); } + void setLookup(Lookup *l, const Value &v) + { vtbl->setLookup(this, l, v); } + + bool isEqualTo(Managed *other) + { return vtbl->isEqualTo(this, other); } + Property *advanceIterator(ObjectIterator *it, String **name, uint *index, PropertyAttributes *attributes) + { return vtbl->advanceIterator(this, it, name, index, attributes); } + + static void destroy(Managed *that) { that->_data = 0; } + static bool hasInstance(Managed *that, const Value &value); + static Value construct(Managed *m, Value *, int); + static Value call(Managed *m, const Value &, Value *, int); + static void getLookup(Managed *m, Lookup *, Value *); + static void setLookup(Managed *m, Lookup *l, const Value &v); + static bool isEqualTo(Managed *m, Managed *other); + + uint internalType() const { + return type; + } + + union { + uint _data; + struct { + uint markBit : 1; + uint inUse : 1; + uint extensible : 1; // used by Object + uint isNonStrictArgumentsObject : 1; + uint isBuiltinFunction : 1; // used by FunctionObject + uint needsActivation : 1; // used by FunctionObject + uint usesArgumentsObject : 1; // used by FunctionObject + uint strictMode : 1; // used by FunctionObject + uint type : 8; + mutable uint subtype : 3; + uint bindingKeyFlag : 1; + uint unused : 12; + }; + }; + +protected: + + static const ManagedVTable static_vtbl; + + const ManagedVTable *vtbl; +public: + InternalClass *internalClass; + +private: + friend class MemoryManager; + friend struct Identifiers; + friend struct ObjectIterator; +}; + +// ### Not a good placement +template<typename T> +inline T *Value::as() const { Managed *m = isObject() ? managed() : 0; return m ? m->as<T>() : 0; } + + +} + + +QT_END_NAMESPACE + +#endif |