1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
|
/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtQml module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QMLJS_MANAGED_H
#define QMLJS_MANAGED_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include "qv4global_p.h"
#include "qv4value_p.h"
#include <private/qv4heap_p.h>
QT_BEGIN_NAMESPACE
namespace QV4 {
#define Q_MANAGED_CHECK \
template <typename _T> inline void qt_check_for_QMANAGED_macro(const _T *_q_argument) const \
{ int i = qYouForgotTheQ_MANAGED_Macro(this, _q_argument); i = i + 1; }
template <typename T>
inline int qYouForgotTheQ_MANAGED_Macro(T, T) { return 0; }
template <typename T1, typename T2>
inline void qYouForgotTheQ_MANAGED_Macro(T1, T2) {}
#ifdef Q_COMPILER_STATIC_ASSERT
#define V4_MANAGED_SIZE_TEST void __dataTest() { Q_STATIC_ASSERT(sizeof(*this) == sizeof(Managed)); }
#else
#define V4_MANAGED_SIZE_TEST
#endif
#define V4_NEEDS_DESTROY static void destroy(QV4::Heap::Base *b) { static_cast<Data *>(b)->~Data(); }
#define V4_MANAGED_ITSELF(DataClass, superClass) \
public: \
Q_MANAGED_CHECK \
typedef QV4::Heap::DataClass Data; \
typedef superClass SuperClass; \
static const QV4::VTable static_vtbl; \
static inline const QV4::VTable *staticVTable() { return &static_vtbl; } \
V4_MANAGED_SIZE_TEST \
QV4::Heap::DataClass *d() const { return static_cast<QV4::Heap::DataClass *>(m()); }
#define V4_MANAGED(DataClass, superClass) \
private: \
DataClass() Q_DECL_EQ_DELETE; \
Q_DISABLE_COPY(DataClass) \
V4_MANAGED_ITSELF(DataClass, superClass)
#define Q_MANAGED_TYPE(type) \
public: \
enum { MyType = Type_##type };
#define Q_VTABLE_FUNCTION(classname, func) \
(classname::func == QV4::Managed::func ? 0 : classname::func)
#define DEFINE_MANAGED_VTABLE_INT(classname, parentVTable) \
{ \
parentVTable, \
classname::IsExecutionContext, \
classname::IsString, \
classname::IsObject, \
classname::IsFunctionObject, \
classname::IsErrorObject, \
classname::IsArrayData, \
0, \
classname::MyType, \
#classname, \
Q_VTABLE_FUNCTION(classname, destroy), \
markObjects, \
isEqualTo \
}
#define DEFINE_MANAGED_VTABLE(classname) \
const QV4::VTable classname::static_vtbl = DEFINE_MANAGED_VTABLE_INT(classname, 0)
struct Q_QML_PRIVATE_EXPORT Managed : Value
{
V4_MANAGED_ITSELF(Base, Managed)
enum {
IsExecutionContext = false,
IsString = false,
IsObject = false,
IsFunctionObject = false,
IsErrorObject = false,
IsArrayData = false
};
private:
void *operator new(size_t);
Managed() Q_DECL_EQ_DELETE;
Q_DISABLE_COPY(Managed)
public:
enum Type {
Type_Invalid,
Type_String,
Type_Object,
Type_ArrayObject,
Type_FunctionObject,
Type_BooleanObject,
Type_NumberObject,
Type_StringObject,
Type_DateObject,
Type_RegExpObject,
Type_ErrorObject,
Type_ArgumentsObject,
Type_JsonObject,
Type_MathObject,
Type_ExecutionContext,
Type_ForeachIteratorObject,
Type_RegExp,
Type_QmlSequence
};
Q_MANAGED_TYPE(Invalid)
bool isListType() const { return d()->vtable()->type == Type_QmlSequence; }
bool isArrayObject() const { return d()->vtable()->type == Type_ArrayObject; }
bool isStringObject() const { return d()->vtable()->type == Type_StringObject; }
QString className() const;
bool isEqualTo(const Managed *other) const
{ return d()->vtable()->isEqualTo(const_cast<Managed *>(this), const_cast<Managed *>(other)); }
static bool isEqualTo(Managed *m, Managed *other);
bool inUse() const { return d()->inUse(); }
bool markBit() const { return d()->isMarked(); }
static void destroy(Heap::Base *) {}
private:
friend class MemoryManager;
friend struct Identifiers;
friend struct ObjectIterator;
};
template<>
inline const Managed *Value::as() const {
if (isManaged())
return managed();
return 0;
}
template<>
inline const Object *Value::as() const {
return isManaged() && m() && m()->vtable()->isObject ? objectValue() : 0;
}
}
QT_END_NAMESPACE
#endif
|
