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/*
* Copyright (C) 2015 Yusuke Suzuki <utatane.tea@gmail.com>.
*
* 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. AND ITS CONTRIBUTORS ``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 ITS 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 "SymbolRegistry.h"
namespace WTF {
SymbolRegistry::~SymbolRegistry()
{
for (auto& key : m_table)
key.impl()->symbolRegistry() = nullptr;
}
Ref<SymbolImpl> SymbolRegistry::symbolForKey(const String& rep)
{
auto addResult = m_table.add(SymbolRegistryKey(rep.impl()));
if (!addResult.isNewEntry)
return *static_cast<SymbolImpl*>(addResult.iterator->impl());
Ref<SymbolImpl> symbol = StringImpl::createSymbol(rep.impl());
symbol->symbolRegistry() = this;
*addResult.iterator = SymbolRegistryKey(&symbol.get());
return symbol;
}
String SymbolRegistry::keyForSymbol(SymbolImpl& uid)
{
ASSERT(uid.symbolRegistry() == this);
return uid.extractFoldedStringInSymbol();
}
void SymbolRegistry::remove(SymbolImpl& uid)
{
ASSERT(uid.symbolRegistry() == this);
auto iterator = m_table.find(SymbolRegistryKey(&uid));
ASSERT_WITH_MESSAGE(iterator != m_table.end(), "The string being removed is registered in the string table of an other thread!");
m_table.remove(iterator);
}
}
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