1 | // Copyright (C) 2016 The Qt Company Ltd. |
2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
3 | |
4 | #ifndef QV4VARIANTOBJECT_P_H |
5 | #define QV4VARIANTOBJECT_P_H |
6 | |
7 | // |
8 | // W A R N I N G |
9 | // ------------- |
10 | // |
11 | // This file is not part of the Qt API. It exists purely as an |
12 | // implementation detail. This header file may change from version to |
13 | // version without notice, or even be removed. |
14 | // |
15 | // We mean it. |
16 | // |
17 | |
18 | #include <QtCore/qglobal.h> |
19 | #include <QtQml/qqmllist.h> |
20 | #include <QtCore/qvariant.h> |
21 | |
22 | #include <private/qv4value_p.h> |
23 | #include <private/qv4object_p.h> |
24 | |
25 | QT_BEGIN_NAMESPACE |
26 | |
27 | namespace QV4 { |
28 | |
29 | namespace Heap { |
30 | |
31 | struct VariantObject : Object |
32 | { |
33 | void init(); |
34 | void init(const QMetaType type, const void *data); |
35 | void destroy() { |
36 | Q_ASSERT(scarceData); |
37 | if (isScarce()) |
38 | addVmePropertyReference(); |
39 | delete scarceData; |
40 | Object::destroy(); |
41 | } |
42 | bool isScarce() const; |
43 | int vmePropertyReferenceCount; |
44 | |
45 | const QVariant &data() const { return scarceData->data; } |
46 | QVariant &data() { return scarceData->data; } |
47 | |
48 | void addVmePropertyReference() { scarceData->node.remove(); } |
49 | void removeVmePropertyReference() { internalClass->engine->scarceResources.insert(n: scarceData); } |
50 | |
51 | private: |
52 | ExecutionEngine::ScarceResourceData *scarceData; |
53 | }; |
54 | |
55 | } |
56 | |
57 | struct VariantObject : Object |
58 | { |
59 | V4_OBJECT2(VariantObject, Object) |
60 | V4_PROTOTYPE(variantPrototype) |
61 | V4_NEEDS_DESTROY |
62 | |
63 | void addVmePropertyReference() const; |
64 | void removeVmePropertyReference() const; |
65 | |
66 | protected: |
67 | static bool virtualIsEqualTo(Managed *m, Managed *other); |
68 | }; |
69 | |
70 | struct VariantPrototype : VariantObject |
71 | { |
72 | public: |
73 | V4_PROTOTYPE(objectPrototype) |
74 | void init(); |
75 | |
76 | static ReturnedValue method_preserve(const FunctionObject *f, const Value *thisObject, const Value *argv, int argc); |
77 | static ReturnedValue method_destroy(const FunctionObject *, const Value *thisObject, const Value *argv, int argc); |
78 | static ReturnedValue method_toString(const FunctionObject *, const Value *thisObject, const Value *argv, int argc); |
79 | static ReturnedValue method_valueOf(const FunctionObject *, const Value *thisObject, const Value *argv, int argc); |
80 | }; |
81 | |
82 | } |
83 | |
84 | QT_END_NAMESPACE |
85 | |
86 | #endif |
87 | |
88 | |