2018-01-03 00:56:55 +00:00
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/*
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2021-06-18 01:44:42 +00:00
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* Copyright (C) 2017-2021 Apple Inc. All rights reserved.
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2018-01-03 00:56:55 +00:00
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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
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* are met:
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* 1. 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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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* 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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2018-01-08 21:05:17 +00:00
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#include <wtf/Bag.h>
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2019-05-13 22:00:09 +00:00
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#include <wtf/Platform.h>
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2018-01-08 21:05:17 +00:00
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#include <wtf/RefCountedArray.h>
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2018-01-03 00:56:55 +00:00
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#include <wtf/RefPtr.h>
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2019-05-13 22:00:09 +00:00
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#if OS(DARWIN)
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#include <mach/vm_param.h>
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2019-06-06 08:58:04 +00:00
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#include <mach/vm_types.h>
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2019-05-13 22:00:09 +00:00
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#endif
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2018-01-03 00:56:55 +00:00
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namespace WTF {
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namespace {
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2018-01-03 01:43:37 +00:00
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struct DummyStruct { };
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2018-01-03 00:56:55 +00:00
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}
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2018-01-08 21:05:17 +00:00
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static_assert(sizeof(Bag<DummyStruct>) == sizeof(void*), "");
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2018-01-03 01:43:37 +00:00
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static_assert(sizeof(Ref<DummyStruct>) == sizeof(DummyStruct*), "");
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2018-01-03 00:56:55 +00:00
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2018-01-03 01:43:37 +00:00
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static_assert(sizeof(RefPtr<DummyStruct>) == sizeof(DummyStruct*), "");
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2018-01-03 00:56:55 +00:00
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2018-01-08 21:05:17 +00:00
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static_assert(sizeof(RefCountedArray<DummyStruct>) == sizeof(void*), "");
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2019-05-13 22:00:09 +00:00
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2019-05-13 23:43:09 +00:00
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#if OS(DARWIN) && CPU(ADDRESS64)
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2021-06-18 01:44:42 +00:00
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// NaN boxing encoding relies on this.
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static_assert(MACH_VM_MAX_ADDRESS <= (1ull << 48));
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2019-05-13 22:00:09 +00:00
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#endif
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2020-01-21 04:01:50 +00:00
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2018-01-03 00:56:55 +00:00
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} // namespace WTF
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