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https://github.com/darlinghq/darling-WTF.git
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72 lines
3.2 KiB
C++
72 lines
3.2 KiB
C++
/*
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* Copyright (C) 2009 Google Inc. All rights reserved.
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* Copyright (C) 2011-2016 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include <wtf/CrossThreadCopier.h>
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namespace WTF {
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// Test CrossThreadCopier using COMPILE_ASSERT.
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// Verify that ThreadSafeRefCounted objects get handled correctly.
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class CopierThreadSafeRefCountedTest : public ThreadSafeRefCounted<CopierThreadSafeRefCountedTest> {
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};
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COMPILE_ASSERT((std::is_same<
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RefPtr<CopierThreadSafeRefCountedTest>,
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CrossThreadCopier<RefPtr<CopierThreadSafeRefCountedTest>>::Type
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>::value),
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RefPtrTest);
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COMPILE_ASSERT((std::is_same<
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RefPtr<CopierThreadSafeRefCountedTest>,
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CrossThreadCopier<CopierThreadSafeRefCountedTest*>::Type
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>::value),
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RawPointerTest);
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// Add specializations for RefCounted types which will let us verify that no other template matches.
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template<typename T> struct CrossThreadCopierBase<false, false, RefPtr<T>> {
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typedef int Type;
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};
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template<typename T> struct CrossThreadCopierBase<false, false, T*> {
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typedef int Type;
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};
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// Verify that RefCounted objects only match the above templates which expose Type as int.
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class CopierRefCountedTest : public RefCounted<CopierRefCountedTest> {
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};
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static_assert((std::is_same<int, CrossThreadCopier<RefPtr<CopierRefCountedTest>>::Type>::value), "CrossThreadCopier specialization improperly applied to RefPtr<> of a RefCounted (but not ThreadSafeRefCounted) type");
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static_assert((std::is_same<int, CrossThreadCopier<CopierRefCountedTest*>::Type>::value), "CrossThreadCopier specialization improperly applied to raw pointer of a RefCounted (but not ThreadSafeRefCounted) type");
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} // namespace WTF
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