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39 
40 #ifndef QV4VARIANTOBJECT_P_H
41 #define QV4VARIANTOBJECT_P_H
42 
43 //
44 //  W A R N I N G
45 //  -------------
46 //
47 // This file is not part of the Qt API.  It exists purely as an
48 // implementation detail.  This header file may change from version to
49 // version without notice, or even be removed.
50 //
51 // We mean it.
52 //
53 
54 #include <QtCore/qglobal.h>
55 #include <QtQml/qqmllist.h>
56 #include <QtCore/qvariant.h>
57 
58 #include <private/qv4value_p.h>
59 #include <private/qv4object_p.h>
60 
61 QT_BEGIN_NAMESPACE
62 
63 namespace QV4 {
64 
65 namespace Heap {
66 
67 struct VariantObject : Object
68 {
69     void init();
70     void init(const QVariant &value);
destroyVariantObject71     void destroy() {
72         Q_ASSERT(scarceData);
73         if (isScarce())
74             addVmePropertyReference();
75         delete scarceData;
76         Object::destroy();
77     }
78     bool isScarce() const;
79     int vmePropertyReferenceCount;
80 
dataVariantObject81     const QVariant &data() const { return scarceData->data; }
dataVariantObject82     QVariant &data() { return scarceData->data; }
83 
addVmePropertyReferenceVariantObject84     void addVmePropertyReference() { scarceData->node.remove(); }
removeVmePropertyReferenceVariantObject85     void removeVmePropertyReference() { internalClass->engine->scarceResources.insert(scarceData); }
86 
87 private:
88     ExecutionEngine::ScarceResourceData *scarceData;
89 };
90 
91 }
92 
93 struct VariantObject : Object
94 {
95     V4_OBJECT2(VariantObject, Object)
96     V4_PROTOTYPE(variantPrototype)
97     V4_NEEDS_DESTROY
98 
99     void addVmePropertyReference() const;
100     void removeVmePropertyReference() const;
101 
102 protected:
103     static bool virtualIsEqualTo(Managed *m, Managed *other);
104 };
105 
106 struct VariantPrototype : VariantObject
107 {
108 public:
109     V4_PROTOTYPE(objectPrototype)
110     void init();
111 
112     static ReturnedValue method_preserve(const FunctionObject *f, const Value *thisObject, const Value *argv, int argc);
113     static ReturnedValue method_destroy(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
114     static ReturnedValue method_toString(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
115     static ReturnedValue method_valueOf(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
116 };
117 
118 }
119 
120 QT_END_NAMESPACE
121 
122 #endif
123 
124