| // Copyright 2010-2015, Google 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: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * 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. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT |
| // OWNER 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. |
| |
| #ifndef MOZC_REWRITER_CALCULATOR_CALCULATOR_INTERFACE_H_ |
| #define MOZC_REWRITER_CALCULATOR_CALCULATOR_INTERFACE_H_ |
| |
| #include <string> |
| |
| namespace mozc { |
| |
| class CalculatorInterface { |
| public: |
| // Calculates expression and outputs to |result|. If key is not an expression, |
| // it returns false. |
| virtual bool CalculateString(const string &key, string *result) const = 0; |
| |
| protected: |
| CalculatorInterface() {} |
| virtual ~CalculatorInterface() {} |
| }; |
| |
| // factory for making "default" calculator |
| class CalculatorFactory { |
| public: |
| // returns singleton object |
| static CalculatorInterface *GetCalculator(); |
| |
| // dependency injection for unittesting |
| static void SetCalculator(CalculatorInterface *calculator); |
| |
| private: |
| CalculatorFactory() {} |
| virtual ~CalculatorFactory() {} |
| }; |
| |
| } // namespace mozc |
| |
| #endif // MOZC_REWRITER_CALCULATOR_CALCULATOR_INTERFACE_H_ |