1 /****************************************************************************
3 ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
4 ** All rights reserved.
5 ** Contact: Nokia Corporation (qt-info@nokia.com)
7 ** This file is part of the QtDeclarative module of the Qt Toolkit.
9 ** $QT_BEGIN_LICENSE:LGPL$
10 ** No Commercial Usage
11 ** This file contains pre-release code and may not be distributed.
12 ** You may use this file in accordance with the terms and conditions
13 ** contained in the Technology Preview License Agreement accompanying
16 ** GNU Lesser General Public License Usage
17 ** Alternatively, this file may be used under the terms of the GNU Lesser
18 ** General Public License version 2.1 as published by the Free Software
19 ** Foundation and appearing in the file LICENSE.LGPL included in the
20 ** packaging of this file. Please review the following information to
21 ** ensure the GNU Lesser General Public License version 2.1 requirements
22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
24 ** In addition, as a special exception, Nokia gives you certain additional
25 ** rights. These rights are described in the Nokia Qt LGPL Exception
26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
28 ** If you have questions regarding the use of this file, please contact
29 ** Nokia at qt-info@nokia.com.
40 ****************************************************************************/
42 #ifndef QDECLARATIVEVME_P_H
43 #define QDECLARATIVEVME_P_H
49 // This file is not part of the Qt API. It exists purely as an
50 // implementation detail. This header file may change from version to
51 // version without notice, or even be removed.
56 #include "qdeclarativeerror.h"
57 #include "private/qbitfield_p.h"
59 #include <QtCore/QString>
60 #include <QtCore/QStack>
66 class QDeclarativeScriptData;
67 class QDeclarativeInstruction;
68 class QDeclarativeCompiledData;
69 class QDeclarativeCompiledData;
70 class QDeclarativeContextData;
72 template<typename T, int N = 128>
73 class QDeclarativeVMEStack {
75 QDeclarativeVMEStack() : index(-1), maxSize(N), data((T *)fixedData) {}
76 ~QDeclarativeVMEStack() { if (data != (T *)fixedData) qFree(data); }
78 bool isEmpty() const { return index == -1; }
79 const T &top() const { return data[index]; }
80 void push(const T &i) { ++index; if (index == maxSize) realloc(); data[index] = i; }
81 const T &pop() { --index; return data[index + 1]; }
82 int count() const { return index + 1; }
83 const T &at(int idx) { return data[idx]; }
88 if (data != (T *)fixedData) {
89 data = (T*)qRealloc(data, maxSize * sizeof(T));
91 data = (T*)qMalloc(maxSize * sizeof(T));
97 char fixedData[N * sizeof(T)];
100 class QDeclarativeVME
105 QObject *run(QDeclarativeContextData *, QDeclarativeCompiledData *,
106 int start = -1, int count = -1,
107 const QBitField & = QBitField());
108 QScriptValue run(QDeclarativeContextData *, QDeclarativeScriptData *);
110 void runDeferred(QObject *);
112 bool isError() const;
113 QList<QDeclarativeError> errors() const;
116 QObject *run(QDeclarativeVMEStack<QObject *> &,
117 QDeclarativeContextData *, QDeclarativeCompiledData *,
118 int start, int count,
120 QList<QDeclarativeError> vmeErrors;
125 #endif // QDECLARATIVEVME_P_H