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71 lines
2.7 KiB
C++
71 lines
2.7 KiB
C++
/*
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* Copyright (C) 2010 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
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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 "flutter/sky/engine/wtf/text/StringStatics.h"
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#include "flutter/sky/engine/wtf/DynamicAnnotations.h"
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#include "flutter/sky/engine/wtf/MainThread.h"
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#include "flutter/sky/engine/wtf/StaticConstructors.h"
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#include "flutter/sky/engine/wtf/text/AtomicString.h"
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#include "flutter/sky/engine/wtf/text/StringImpl.h"
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namespace WTF {
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StringImpl* StringImpl::empty() {
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DEFINE_STATIC_LOCAL(StringImpl, emptyString, (ConstructEmptyString));
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WTF_ANNOTATE_BENIGN_RACE(
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&emptyString, "Benign race on StringImpl::emptyString reference counter");
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return &emptyString;
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}
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WTF_EXPORT DEFINE_GLOBAL(AtomicString, nullAtom) WTF_EXPORT
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DEFINE_GLOBAL(AtomicString, emptyAtom) WTF_EXPORT
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DEFINE_GLOBAL(AtomicString, starAtom)
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NEVER_INLINE unsigned StringImpl::hashSlowCase() const {
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if (is8Bit())
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setHash(StringHasher::computeHashAndMaskTop8Bits(characters8(), m_length));
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else
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setHash(StringHasher::computeHashAndMaskTop8Bits(characters16(), m_length));
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return existingHash();
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}
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void AtomicString::init() {
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ASSERT(isMainThread());
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new (NotNull, (void*)&nullAtom) AtomicString;
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new (NotNull, (void*)&emptyAtom) AtomicString("");
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}
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void StringStatics::init() {
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ASSERT(isMainThread());
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// FIXME: These should be allocated at compile time.
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new (NotNull, (void*)&starAtom)
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AtomicString("*", AtomicString::ConstructFromLiteral);
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}
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} // namespace WTF
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