| // 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_ |