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39
40#ifndef QMETATYPESWITCHER_P_H
41#define QMETATYPESWITCHER_P_H
42
43#include "qmetatype.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 QMetaTypeSwitcher {
59public:
60 class NotBuiltinType; // type is not a built-in type, but it may be a custom type or an unknown type
61 class UnknownType; // type not known to QMetaType system
62 template<class ReturnType, class DelegateObject>
63 static ReturnType switcher(DelegateObject &logic, int type, const void *data);
64};
65
66
67#define QT_METATYPE_SWICHER_CASE(TypeName, TypeId, Name)\
68 case QMetaType::TypeName: return logic.delegate(static_cast<Name const *>(data));
69
70template<class ReturnType, class DelegateObject>
71ReturnType QMetaTypeSwitcher::switcher(DelegateObject &logic, int type, const void *data)
72{
73 switch (QMetaType::Type(type)) {
74 QT_FOR_EACH_STATIC_TYPE(QT_METATYPE_SWICHER_CASE)
75
76 case QMetaType::UnknownType:
77 return logic.delegate(static_cast<UnknownType const *>(data));
78 default:
79 if (type < QMetaType::User)
80 return logic.delegate(static_cast<UnknownType const *>(data));
81 return logic.delegate(static_cast<NotBuiltinType const *>(data));
82 }
83}
84
85#undef QT_METATYPE_SWICHER_CASE
86
87QT_END_NAMESPACE
88
89#endif // QMETATYPESWITCHER_P_H
90