blob: fb323d7c89ec66835eab7c15db306525c5873fd8 (
plain)
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
|
// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QANIMATIONJOBUTIL_P_H
#define QANIMATIONJOBUTIL_P_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 <QtCore/qcompilerdetection.h>
#include <QtCore/qtconfigmacros.h>
#include <type_traits>
QT_REQUIRE_CONFIG(qml_animation);
#if defined(Q_CC_GNU_ONLY) && Q_CC_GNU_ONLY >= 1300
# define ACTION_IF_DISABLE_DANGLING_POINTER_WARNING QT_WARNING_DISABLE_GCC("-Wdangling-pointer")
#else
# define ACTION_IF_DISABLE_DANGLING_POINTER_WARNING
#endif
// SelfDeletable is used for self-destruction detection along with
// ACTION_IF_DELETED and RETURN_IF_DELETED macros. While using, the objects
// under test should have a member m_selfDeletable of type SelfDeletable
struct SelfDeletable {
~SelfDeletable() {
if (m_wasDeleted)
*m_wasDeleted = true;
}
bool *m_wasDeleted = nullptr;
};
// \param p pointer to object under test, which should have a member m_selfDeletable of type SelfDeletable
// \param func statements or functions that to be executed under test.
// \param action post process if p was deleted under test.
#define ACTION_IF_DELETED(p, func, action) \
do { \
QT_WARNING_PUSH \
ACTION_IF_DISABLE_DANGLING_POINTER_WARNING \
static_assert(std::is_same<decltype((p)->m_selfDeletable), SelfDeletable>::value, "m_selfDeletable must be SelfDeletable");\
bool *prevWasDeleted = (p)->m_selfDeletable.m_wasDeleted; \
bool wasDeleted = false; \
(p)->m_selfDeletable.m_wasDeleted = &wasDeleted; \
{func;} \
if (wasDeleted) { \
if (prevWasDeleted) \
*prevWasDeleted = true; \
{action;} \
} \
(p)->m_selfDeletable.m_wasDeleted = prevWasDeleted; \
QT_WARNING_POP \
} while (false)
#define RETURN_IF_DELETED(func) \
ACTION_IF_DELETED(this, func, return)
#endif // QANIMATIONJOBUTIL_P_H
|
