1/*
2 * Copyright (C) 2012 Apple Inc. All rights reserved.
3 * Copyright (C) 2015 Igalia S.L.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
15 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
16 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
18 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
19 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
20 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
21 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
22 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
23 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
24 * THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#ifndef GCAssertions_h
28#define GCAssertions_h
29
30#include <type_traits>
31#include <wtf/Assertions.h>
32
33#if ENABLE(GC_VALIDATION)
34#define ASSERT_GC_OBJECT_LOOKS_VALID(cell) do { \
35 RELEASE_ASSERT(cell);\
36 RELEASE_ASSERT(cell->structure()->structure() == cell->structure()->structure()->structure()); \
37} while (0)
38
39#define ASSERT_GC_OBJECT_INHERITS(object, classInfo) do {\
40 ASSERT_GC_OBJECT_LOOKS_VALID(object); \
41 RELEASE_ASSERT(object->inherits(classInfo)); \
42} while (0)
43
44// Used to avoid triggering -Wundefined-bool-conversion.
45#define ASSERT_THIS_GC_OBJECT_LOOKS_VALID() do { \
46 RELEASE_ASSERT(this->structure()->structure() == this->structure()->structure()->structure()); \
47} while (0)
48
49#define ASSERT_THIS_GC_OBJECT_INHERITS(classInfo) do {\
50 ASSERT_THIS_GC_OBJECT_LOOKS_VALID(); \
51 RELEASE_ASSERT(this->inherits(classInfo)); \
52} while (0)
53
54#else
55#define ASSERT_GC_OBJECT_LOOKS_VALID(cell) do { (void)cell; } while (0)
56#define ASSERT_GC_OBJECT_INHERITS(object, classInfo) do { (void)object; (void)classInfo; } while (0)
57#define ASSERT_THIS_GC_OBJECT_LOOKS_VALID()
58#define ASSERT_THIS_GC_OBJECT_INHERITS(classInfo) do { (void)classInfo; } while (0)
59#endif
60
61#define STATIC_ASSERT_IS_TRIVIALLY_DESTRUCTIBLE(klass) static_assert(std::is_trivially_destructible<klass>::value, #klass " must have a trivial destructor")
62
63#endif // GCAssertions_h
64