diff generator/parser/codemodel_pointer.h @ 1:e78566595089

initial import
author mandel
date Mon, 11 May 2009 16:01:50 +0000
parents
children 09a0f1d048f2
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/generator/parser/codemodel_pointer.h	Mon May 11 16:01:50 2009 +0000
@@ -0,0 +1,132 @@
+/****************************************************************************
+**
+** Copyright (C) 1992-2008 Nokia. All rights reserved.
+** Copyright (C) 2006 Roberto Raggi <roberto@kdevelop.org>
+**
+** This file is part of Qt Jambi.
+**
+** * Commercial Usage
+* Licensees holding valid Qt Commercial licenses may use this file in
+* accordance with the Qt Commercial License Agreement provided with the
+* Software or, alternatively, in accordance with the terms contained in
+* a written agreement between you and Nokia.
+*
+*
+* GNU General Public License Usage
+* Alternatively, this file may be used under the terms of the GNU
+* General Public License versions 2.0 or 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 GNU General Public Licensing requirements will be met:
+* http://www.fsf.org/licensing/licenses/info/GPLv2.html and
+* http://www.gnu.org/copyleft/gpl.html.  In addition, as a special
+* exception, Nokia gives you certain additional rights. These rights
+* are described in the Nokia Qt GPL Exception version 1.2, included in
+* the file GPL_EXCEPTION.txt in this package.
+* 
+* Qt for Windows(R) Licensees
+* As a special exception, Nokia, as the sole copyright holder for Qt
+* Designer, grants users of the Qt/Eclipse Integration plug-in the
+* right for the Qt/Eclipse Integration to link to functionality
+* provided by Qt Designer and its related libraries.
+*
+*
+* If you are unsure which license is appropriate for your use, please
+* contact the sales department at qt-sales@nokia.com.
+
+**
+** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+**
+****************************************************************************/
+
+#ifndef CODEMODEL_POINTER_H
+#define CODEMODEL_POINTER_H
+
+#include <QtCore/QSharedData>
+
+// Since the atomic API changed in 4.4 we need to hack a little here
+// to make it work with both 4.3 and 4.4 until that is not required
+
+#if QT_VERSION >= 0x040400
+
+#   include <QtCore/qatomic.h>
+template <class T> class CodeModelPointer: public QAtomicPointer<T>
+
+#else
+
+template <class T> class CodeModelPointer
+
+#endif // QT_VERSION >= 0x040400
+
+{
+public:
+    typedef T Type;
+
+#if QT_VERSION < 0x040400
+    inline T &operator*() { return *d; }
+    inline const T &operator*() const { return *d; }
+    inline T *operator->() { return d; }
+    inline const T *operator->() const { return d; }
+    inline operator T *() { return d; }
+    inline operator const T *() const { return d; }
+    inline T *data() { return d; }
+    inline const T *data() const { return d; }
+    inline const T *constData() const { return d; }
+
+    inline bool operator==(const CodeModelPointer<T> &other) const { return d == other.d; }
+    inline bool operator!=(const CodeModelPointer<T> &other) const { return d != other.d; }
+    inline bool operator==(const T *ptr) const { return d == ptr; }
+    inline bool operator!=(const T *ptr) const { return d != ptr; }
+
+    inline CodeModelPointer() { d = 0; }
+    inline ~CodeModelPointer() { if (d && !d->ref.deref()) delete d; }
+
+    explicit CodeModelPointer(T *data);
+    inline CodeModelPointer(const CodeModelPointer<T> &o) : d(o.d) { if (d) d->ref.ref(); }
+    inline CodeModelPointer<T> & operator=(const CodeModelPointer<T> &o) {
+        if (o.d != d) {
+            T *x = o.d;
+            if (x) x->ref.ref();
+            x = qAtomicSetPtr(&d, x);
+            if (x && !x->ref.deref())
+                delete x;
+        }
+        return *this;
+    }
+    inline CodeModelPointer &operator=(T *o) {
+        if (o != d) {
+            T *x = o;
+            if (x) x->ref.ref();
+            x = qAtomicSetPtr(&d, x);
+            if (x && !x->ref.deref())
+                delete x;
+        }
+        return *this;
+    }
+
+    inline bool operator!() const { return !d; }
+
+private:
+    T *d;
+#else // QT_VERSION < 0x040400
+    inline CodeModelPointer(T *value = 0) : QAtomicPointer<T>(value) {}
+
+    inline CodeModelPointer &operator=(T *o) {
+        QAtomicPointer<T>::operator=(o);
+        return *this;
+    }
+
+    inline T *data() { return (T *) *this; }
+    inline const T *data() const { return (const T *) *this; }
+    inline const T *constData() const { return (const T *) *this; }
+#endif
+};
+
+#if QT_VERSION < 0x040400
+template <class T>
+Q_INLINE_TEMPLATE CodeModelPointer<T>::CodeModelPointer(T *adata) : d(adata)
+{ if (d) d->ref.ref(); }
+#endif
+
+#endif // CODEMODEL_POINTER_H