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100 lines
4.0 KiB
C++
100 lines
4.0 KiB
C++
/*
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* Copyright (C) 2010 Google 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 "flutter/sky/engine/wtf/Assertions.h"
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#include "flutter/sky/engine/wtf/OwnPtr.h"
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#include "flutter/sky/engine/wtf/PassRefPtr.h"
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#include "flutter/sky/engine/wtf/RefCounted.h"
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#include "flutter/sky/engine/wtf/RefPtr.h"
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#include "flutter/sky/engine/wtf/ThreadRestrictionVerifier.h"
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#include "flutter/sky/engine/wtf/Vector.h"
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#include "flutter/sky/engine/wtf/text/AtomicString.h"
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#include "flutter/sky/engine/wtf/text/WTFString.h"
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namespace WTF {
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#if ENABLE(ASSERT) || ENABLE(SECURITY_ASSERT)
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// The debug/assertion version may get bigger.
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struct SameSizeAsRefCounted {
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int a;
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#if ENABLE(SECURITY_ASSERT)
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bool b;
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#endif
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#if ENABLE(ASSERT)
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bool c;
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ThreadRestrictionVerifier d;
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#endif
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};
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#else
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struct SameSizeAsRefCounted {
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int a;
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// Don't add anything here because this should stay small.
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};
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#endif
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template <typename T, unsigned inlineCapacity = 0>
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struct SameSizeAsVectorWithInlineCapacity;
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template <typename T>
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struct SameSizeAsVectorWithInlineCapacity<T, 0> {
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void* bufferPointer;
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unsigned capacity;
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unsigned size;
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};
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template <typename T, unsigned inlineCapacity>
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struct SameSizeAsVectorWithInlineCapacity {
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SameSizeAsVectorWithInlineCapacity<T, 0> baseCapacity;
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AlignedBuffer<inlineCapacity * sizeof(T), WTF_ALIGN_OF(T)> inlineBuffer;
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};
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COMPILE_ASSERT(sizeof(OwnPtr<int>) == sizeof(int*), OwnPtr_should_stay_small);
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COMPILE_ASSERT(sizeof(PassRefPtr<RefCounted<int>>) == sizeof(int*),
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PassRefPtr_should_stay_small);
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COMPILE_ASSERT(sizeof(RefCounted<int>) == sizeof(SameSizeAsRefCounted),
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RefCounted_should_stay_small);
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COMPILE_ASSERT(sizeof(RefPtr<RefCounted<int>>) == sizeof(int*),
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RefPtr_should_stay_small);
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COMPILE_ASSERT(sizeof(String) == sizeof(int*), String_should_stay_small);
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COMPILE_ASSERT(sizeof(AtomicString) == sizeof(String),
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AtomicString_should_stay_small);
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COMPILE_ASSERT(sizeof(Vector<int>) ==
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sizeof(SameSizeAsVectorWithInlineCapacity<int>),
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Vector_should_stay_small);
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COMPILE_ASSERT(sizeof(Vector<int, 1>) ==
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sizeof(SameSizeAsVectorWithInlineCapacity<int, 1>),
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Vector_should_stay_small);
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COMPILE_ASSERT(sizeof(Vector<int, 2>) ==
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sizeof(SameSizeAsVectorWithInlineCapacity<int, 2>),
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Vector_should_stay_small);
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COMPILE_ASSERT(sizeof(Vector<int, 3>) ==
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sizeof(SameSizeAsVectorWithInlineCapacity<int, 3>),
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Vector_should_stay_small);
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} // namespace WTF
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