1/*
2 * Copyright (C) 2009 Google Inc. All rights reserved.
3 * Copyright (C) 2011-2016 Apple Inc. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met:
8 *
9 * * Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * * Redistributions in binary form must reproduce the above
12 * copyright notice, this list of conditions and the following disclaimer
13 * in the documentation and/or other materials provided with the
14 * distribution.
15 * * Neither the name of Google Inc. nor the names of its
16 * contributors may be used to endorse or promote products derived from
17 * this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#include "config.h"
33#include <wtf/CrossThreadCopier.h>
34
35#include <wtf/CrossThreadTask.h>
36
37namespace WTF {
38
39// Test CrossThreadCopier using COMPILE_ASSERT.
40
41// Verify that ThreadSafeRefCounted objects get handled correctly.
42class CopierThreadSafeRefCountedTest : public ThreadSafeRefCounted<CopierThreadSafeRefCountedTest> {
43};
44
45COMPILE_ASSERT((std::is_same<
46 RefPtr<CopierThreadSafeRefCountedTest>,
47 CrossThreadCopier<RefPtr<CopierThreadSafeRefCountedTest>>::Type
48 >::value),
49 RefPtrTest);
50COMPILE_ASSERT((std::is_same<
51 RefPtr<CopierThreadSafeRefCountedTest>,
52 CrossThreadCopier<CopierThreadSafeRefCountedTest*>::Type
53 >::value),
54 RawPointerTest);
55
56// Add specializations for RefCounted types which will let us verify that no other template matches.
57template<typename T> struct CrossThreadCopierBase<false, false, RefPtr<T>> {
58 typedef int Type;
59};
60
61template<typename T> struct CrossThreadCopierBase<false, false, T*> {
62 typedef int Type;
63};
64
65// Verify that RefCounted objects only match the above templates which expose Type as int.
66class CopierRefCountedTest : public RefCounted<CopierRefCountedTest> {
67};
68
69static_assert((std::is_same<int, CrossThreadCopier<RefPtr<CopierRefCountedTest>>::Type>::value), "CrossThreadCopier specialization improperly applied to RefPtr<> of a RefCounted (but not ThreadSafeRefCounted) type");
70static_assert((std::is_same<int, CrossThreadCopier<CopierRefCountedTest*>::Type>::value), "CrossThreadCopier specialization improperly applied to raw pointer of a RefCounted (but not ThreadSafeRefCounted) type");
71
72} // namespace WTF
73
74