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Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

1 files changed, 240 insertions, 0 deletions

diff --git a/src/declarative/qml/qdeclarativepropertycache_p.h b/src/declarative/qml/qdeclarativepropertycache_p.h
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+++ b/src/declarative/qml/qdeclarativepropertycache_p.h
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+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtDeclarative module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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, 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.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QDECLARATIVEPROPERTYCACHE_P_H
+#define QDECLARATIVEPROPERTYCACHE_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/qdeclarativerefcount_p.h"
+#include "private/qdeclarativecleanup_p.h"
+#include "private/qdeclarativenotifier_p.h"
+
+#include <QtCore/qvector.h>
+
+#include <QtScript/private/qscriptdeclarativeclass_p.h>
+QT_BEGIN_NAMESPACE
+
+class QDeclarativeEngine;
+class QMetaProperty;
+
+class Q_AUTOTEST_EXPORT QDeclarativePropertyCache : public QDeclarativeRefCount, public QDeclarativeCleanup
+{
+public:
+    QDeclarativePropertyCache(QDeclarativeEngine *);
+    QDeclarativePropertyCache(QDeclarativeEngine *, const QMetaObject *);
+    virtual ~QDeclarativePropertyCache();
+
+    struct Data {
+        inline Data(); 
+        inline bool operator==(const Data &);
+
+        enum Flag { 
+                    NoFlags           = 0x00000000,
+
+                    // Can apply to all properties, except IsFunction
+                    IsConstant        = 0x00000001,
+                    IsWritable        = 0x00000002,
+                    IsResettable      = 0x00000004,
+                    IsAlias           = 0x00000008,
+
+                    // These are mutualy exclusive
+                    IsFunction        = 0x00000010,
+                    IsQObjectDerived  = 0x00000020,
+                    IsEnumType        = 0x00000040,
+                    IsQList           = 0x00000080,
+                    IsQmlBinding      = 0x00000100,
+                    IsQScriptValue    = 0x00000200,
+
+                    // Apply only to IsFunctions
+                    IsVMEFunction     = 0x00000400,
+                    HasArguments      = 0x00000800,
+                    IsSignal          = 0x00001000,
+                    IsVMESignal       = 0x00002000
+        };
+        Q_DECLARE_FLAGS(Flags, Flag)
+
+        bool isValid() const { return coreIndex != -1; } 
+
+        Flags flags;
+        int propType;
+        int coreIndex;
+        union {
+            int notifyIndex; // When !IsFunction
+            int relatedIndex; // When IsFunction
+        };
+        uint overrideIndexIsProperty : 1;
+        int overrideIndex : 31;
+        int revision; 
+        int metaObjectOffset;
+
+        static Flags flagsForProperty(const QMetaProperty &, QDeclarativeEngine *engine = 0);
+        void load(const QMetaProperty &, QDeclarativeEngine *engine = 0);
+        void load(const QMetaMethod &);
+        QString name(QObject *);
+        QString name(const QMetaObject *);
+    };
+
+    struct ValueTypeData {
+        inline ValueTypeData();
+        inline bool operator==(const ValueTypeData &);
+        Data::Flags flags;     // flags of the access property on the value type proxy object
+        int valueTypeCoreIdx;  // The prop index of the access property on the value type proxy object
+        int valueTypePropType; // The QVariant::Type of access property on the value type proxy object
+    };
+
+    void update(QDeclarativeEngine *, const QMetaObject *);
+
+    QDeclarativePropertyCache *copy() const;
+    void append(QDeclarativeEngine *, const QMetaObject *, Data::Flag propertyFlags = Data::NoFlags,
+                Data::Flag methodFlags = Data::NoFlags, Data::Flag signalFlags = Data::NoFlags);
+    void append(QDeclarativeEngine *, const QMetaObject *, int revision, Data::Flag propertyFlags = Data::NoFlags,
+                Data::Flag methodFlags = Data::NoFlags, Data::Flag signalFlags = Data::NoFlags);
+
+    static Data create(const QMetaObject *, const QString &);
+
+    inline Data *property(const QScriptDeclarativeClass::Identifier &id) const;
+    Data *property(const QString &) const;
+    Data *property(int) const;
+    Data *method(int) const;
+    QStringList propertyNames() const;
+
+    inline Data *overrideData(Data *) const;
+    inline bool isAllowedInRevision(Data *) const;
+
+    inline QDeclarativeEngine *qmlEngine() const;
+    static Data *property(QDeclarativeEngine *, QObject *, const QScriptDeclarativeClass::Identifier &, Data &);
+    static Data *property(QDeclarativeEngine *, QObject *, const QString &, Data &);
+
+protected:
+    virtual void clear();
+
+private:
+    friend class QDeclarativeEnginePrivate;
+
+    struct RData : public Data, public QDeclarativeRefCount { 
+        QScriptDeclarativeClass::PersistentIdentifier identifier;
+    };
+
+    typedef QVector<RData *> IndexCache;
+    typedef QHash<QString, RData *> StringCache;
+    typedef QHash<QScriptDeclarativeClass::Identifier, RData *> IdentifierCache;
+    typedef QVector<int> AllowedRevisionCache;
+
+    void updateRecur(QDeclarativeEngine *, const QMetaObject *);
+
+    QDeclarativeEngine *engine;
+    IndexCache indexCache;
+    IndexCache methodIndexCache;
+    StringCache stringCache;
+    IdentifierCache identifierCache;
+    AllowedRevisionCache allowedRevisionCache;
+};
+Q_DECLARE_OPERATORS_FOR_FLAGS(QDeclarativePropertyCache::Data::Flags);
+  
+QDeclarativePropertyCache::Data::Data()
+: flags(0), propType(0), coreIndex(-1), notifyIndex(-1), overrideIndexIsProperty(false), overrideIndex(-1),
+  revision(0), metaObjectOffset(-1)
+{
+}
+
+bool QDeclarativePropertyCache::Data::operator==(const QDeclarativePropertyCache::Data &other)
+{
+    return flags == other.flags &&
+           propType == other.propType &&
+           coreIndex == other.coreIndex &&
+           notifyIndex == other.notifyIndex &&
+           revision == other.revision;
+}
+
+QDeclarativePropertyCache::Data *
+QDeclarativePropertyCache::overrideData(Data *data) const
+{
+    if (data->overrideIndex < 0)
+        return 0;
+
+    if (data->overrideIndexIsProperty)
+        return indexCache.at(data->overrideIndex);
+    else
+        return methodIndexCache.at(data->overrideIndex);
+}
+
+QDeclarativePropertyCache::Data *
+QDeclarativePropertyCache::property(const QScriptDeclarativeClass::Identifier &id) const 
+{
+    return identifierCache.value(id);
+}
+
+QDeclarativePropertyCache::ValueTypeData::ValueTypeData()
+: flags(QDeclarativePropertyCache::Data::NoFlags), valueTypeCoreIdx(-1), valueTypePropType(0) 
+{
+}
+
+bool QDeclarativePropertyCache::ValueTypeData::operator==(const ValueTypeData &o) 
+{ 
+    return flags == o.flags &&
+           valueTypeCoreIdx == o.valueTypeCoreIdx &&
+           valueTypePropType == o.valueTypePropType; 
+}
+
+bool QDeclarativePropertyCache::isAllowedInRevision(Data *data) const
+{
+    return (data->metaObjectOffset == -1 && data->revision == 0) ||
+           (allowedRevisionCache[data->metaObjectOffset] >= data->revision);
+}
+
+QDeclarativeEngine *QDeclarativePropertyCache::qmlEngine() const
+{
+    return engine;
+}
+
+QT_END_NAMESPACE
+
+#endif // QDECLARATIVEPROPERTYCACHE_P_H