1 /****************************************************************************
2 **
3 ** Copyright (C) 2015 The Qt Company Ltd.
4 ** Contact: http://www.qt.io/licensing/
5 **
6 ** This file is part of the QtScript module of the Qt Toolkit.
7 **
8 ** $QT_BEGIN_LICENSE:LGPL-ONLY$
9 ** GNU Lesser General Public License Usage
10 ** This file may be used under the terms of the GNU Lesser
11 ** General Public License version 2.1 as published by the Free Software
12 ** Foundation and appearing in the file LICENSE.LGPL included in the
13 ** packaging of this file. Please review the following information to
14 ** ensure the GNU Lesser General Public License version 2.1 requirements
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20 ** $QT_END_LICENSE$
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22 ****************************************************************************/
23
24 #ifndef QSCRIPTVALUE_P_H
25 #define QSCRIPTVALUE_P_H
26
27 //
28 // W A R N I N G
29 // -------------
30 //
31 // This file is not part of the Qt API. It exists purely as an
32 // implementation detail. This header file may change from version to
33 // version without notice, or even be removed.
34 //
35 // We mean it.
36 //
37
38 #include <QtCore/qobjectdefs.h>
39
40 #include "wtf/Platform.h"
41 #include "JSValue.h"
42
43 QT_BEGIN_NAMESPACE
44
45 class QString;
46 class QScriptEnginePrivate;
47
48 class QScriptValue;
49 class QScriptValuePrivate
50 {
51 Q_DISABLE_COPY(QScriptValuePrivate)
52 public:
53 inline void* operator new(size_t, QScriptEnginePrivate*);
54 inline void operator delete(void*);
55
56 enum Type {
57 JavaScriptCore,
58 Number,
59 String
60 };
61
62 inline QScriptValuePrivate(QScriptEnginePrivate*);
63 inline ~QScriptValuePrivate();
64
65 inline void initFrom(JSC::JSValue value);
66 inline void initFrom(qsreal value);
67 inline void initFrom(const QString &value);
68
69 inline bool isJSC() const;
70 inline bool isObject() const;
71
get(const QScriptValue & q)72 static inline QScriptValuePrivate *get(const QScriptValue &q)
73 {
74 return q.d_ptr.data();
75 }
76
toPublic(QScriptValuePrivate * d)77 static inline QScriptValue toPublic(QScriptValuePrivate *d)
78 {
79 return QScriptValue(d);
80 }
81
getEngine(const QScriptValue & q)82 static inline QScriptEnginePrivate *getEngine(const QScriptValue &q)
83 {
84 if (!q.d_ptr)
85 return 0;
86 return q.d_ptr->engine;
87 }
88
89 inline JSC::JSValue property(const JSC::Identifier &id,
90 const QScriptValue::ResolveFlags &mode = QScriptValue::ResolvePrototype) const;
91 inline JSC::JSValue property(quint32 index, const QScriptValue::ResolveFlags &mode = QScriptValue::ResolvePrototype) const;
92 inline JSC::JSValue property(const JSC::UString &, const QScriptValue::ResolveFlags &mode = QScriptValue::ResolvePrototype) const;
93 inline void setProperty(const JSC::UString &name, const JSC::JSValue &value,
94 const QScriptValue::PropertyFlags &flags = QScriptValue::KeepExistingFlags);
95 inline void setProperty(const JSC::Identifier &id, const JSC::JSValue &value,
96 const QScriptValue::PropertyFlags &flags = QScriptValue::KeepExistingFlags);
97 inline void setProperty(quint32 index, const JSC::JSValue &value,
98 const QScriptValue::PropertyFlags &flags = QScriptValue::KeepExistingFlags);
99 inline QScriptValue::PropertyFlags propertyFlags(
100 const JSC::Identifier &id, const QScriptValue::ResolveFlags &mode = QScriptValue::ResolvePrototype) const;
101
102 void detachFromEngine();
103
objectId()104 qint64 objectId()
105 {
106 if ( (type == JavaScriptCore) && (engine) && jscValue.isCell() )
107 return (qint64)jscValue.asCell();
108 else
109 return -1;
110 }
111
112 QScriptEnginePrivate *engine;
113 Type type;
114 JSC::JSValue jscValue;
115 qsreal numberValue;
116 QString stringValue;
117
118 // linked list of engine's script values
119 QScriptValuePrivate *prev;
120 QScriptValuePrivate *next;
121
122 QBasicAtomicInt ref;
123 };
124
QScriptValuePrivate(QScriptEnginePrivate * e)125 inline QScriptValuePrivate::QScriptValuePrivate(QScriptEnginePrivate *e)
126 : engine(e), prev(0), next(0)
127 {
128 ref = 0;
129 }
130
isJSC()131 inline bool QScriptValuePrivate::isJSC() const
132 {
133 return (type == JavaScriptCore);
134 }
135
isObject()136 inline bool QScriptValuePrivate::isObject() const
137 {
138 return isJSC() && jscValue && jscValue.isObject();
139 }
140
141 // Rest of inline functions implemented in qscriptengine_p.h
142
143 QT_END_NAMESPACE
144
145 #endif
146