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39
40#ifndef QQMLCLEANUP_P_H
41#define QQMLCLEANUP_P_H
42
43#include <private/qtqmlglobal_p.h>
44
45//
46// W A R N I N G
47// -------------
48//
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.
52//
53// We mean it.
54//
55
56QT_BEGIN_NAMESPACE
57
58class QQmlEngine;
59
60class Q_QML_PRIVATE_EXPORT QQmlCleanup
61{
62public:
63 QQmlCleanup();
64 QQmlCleanup(QQmlEngine *);
65 virtual ~QQmlCleanup();
66
67 bool hasEngine() const { return prev != nullptr; }
68 void addToEngine(QQmlEngine *);
69protected:
70 virtual void clear() = 0;
71
72private:
73 friend class QQmlEnginePrivate;
74 QQmlCleanup **prev;
75 QQmlCleanup *next;
76
77 // Only used for asserts
78 QQmlEngine *engine;
79};
80
81QT_END_NAMESPACE
82
83#endif // QQMLCLEANUP_P_H
84
85

source code of qtdeclarative/src/qml/qml/qqmlcleanup_p.h