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/*
* Copyright (C) 2017 Apple Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include "config.h"
#include "QualifiedNameCache.h"
#include "Namespace.h"
#include "NodeName.h"
#include <wtf/TZoneMallocInlines.h>
namespace WebCore {
WTF_MAKE_TZONE_ALLOCATED_IMPL(QualifiedNameCache);
struct QNameComponentsTranslator {
static unsigned hash(const QualifiedNameComponents& components)
{
return computeHash(components);
}
static bool equal(QualifiedName::QualifiedNameImpl* name, const QualifiedNameComponents& c)
{
return c.m_prefix == name->m_prefix.impl() && c.m_localName == name->m_localName.impl() && c.m_namespaceURI == name->m_namespaceURI.impl();
}
static void translate(QualifiedName::QualifiedNameImpl*& location, const QualifiedNameComponents& components, unsigned)
{
location = &QualifiedName::QualifiedNameImpl::create(components.m_prefix, components.m_localName, components.m_namespaceURI).leakRef();
}
};
static void updateImplWithNamespaceAndElementName(QualifiedName::QualifiedNameImpl& impl, Namespace nodeNamespace, NodeName nodeName)
{
impl.m_namespace = nodeNamespace;
impl.m_nodeName = nodeName;
bool needsLowercasing = nodeNamespace != Namespace::HTML || nodeName == NodeName::Unknown;
impl.m_localNameLower = needsLowercasing ? impl.m_localName.convertToASCIILowercase() : impl.m_localName;
}
Ref<QualifiedName::QualifiedNameImpl> QualifiedNameCache::getOrCreate(const QualifiedNameComponents& components)
{
auto addResult = m_cache.add<QNameComponentsTranslator>(components);
auto& impl = **addResult.iterator;
if (addResult.isNewEntry) {
auto nodeNamespace = findNamespace(components.m_namespaceURI);
auto nodeName = findNodeName(nodeNamespace, components.m_localName);
updateImplWithNamespaceAndElementName(impl, nodeNamespace, nodeName);
return adoptRef(impl);
}
return Ref { impl };
}
Ref<QualifiedName::QualifiedNameImpl> QualifiedNameCache::getOrCreate(const QualifiedNameComponents& components, Namespace nodeNamespace, NodeName nodeName)
{
auto addResult = m_cache.add<QNameComponentsTranslator>(components);
auto& impl = **addResult.iterator;
if (addResult.isNewEntry) {
updateImplWithNamespaceAndElementName(impl, nodeNamespace, nodeName);
return adoptRef(impl);
}
return Ref { impl };
}
void QualifiedNameCache::remove(QualifiedName::QualifiedNameImpl& impl)
{
m_cache.remove(&impl);
}
} // namespace WebCore
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