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// Copyright 2016 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#ifndef CORE_FXCRT_CFX_STRING_POOL_TEMPLATE_H_
#define CORE_FXCRT_CFX_STRING_POOL_TEMPLATE_H_
#include <unordered_set>
#include "core/fxcrt/fx_string.h"
template <typename StringType>
class CFX_StringPoolTemplate {
public:
StringType Intern(const StringType& str) { return *m_Pool.insert(str).first; }
void Clear() { m_Pool.clear(); }
private:
std::unordered_set<StringType> m_Pool;
};
using CFX_ByteStringPool = CFX_StringPoolTemplate<CFX_ByteString>;
using CFX_WideStringPool = CFX_StringPoolTemplate<CFX_WideString>;
extern template class CFX_StringPoolTemplate<CFX_ByteString>;
extern template class CFX_StringPoolTemplate<CFX_WideString>;
#endif // CORE_FXCRT_CFX_STRING_POOL_TEMPLATE_H_
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