199 lines
7.6 KiB
C++
199 lines
7.6 KiB
C++
/***************************************************************************************************
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**
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** Copyright (C) 2013 Ingo Berg
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**
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** Permission is hereby granted, free of charge, to any person obtaining a copy of this
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** software and associated documentation files (the "Software"), to deal in the Software
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** without restriction, including without limitation the rights to use, copy, modify,
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** merge, publish, distribute, sublicense, and/or sell copies of the Software, and to
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** permit persons to whom the Software is furnished to do so, subject to the following conditions:
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**
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** The above copyright notice and this permission notice shall be included in all copies or
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** substantial portions of the Software.
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**
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** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
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** NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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** NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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** DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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**
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******************************************************************************************************/
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#ifndef QMUPARSERCALLBACK_H
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#define QMUPARSERCALLBACK_H
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#include "qmuparserdef.h"
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/**
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* @file
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* @brief Definition of the parser callback class.
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*/
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namespace qmu
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{
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/**
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* @brief Encapsulation of prototypes for a numerical parser function.
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*
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* Encapsulates the prototyp for numerical parser functions. The class stores the number of arguments for parser
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* functions as well as additional flags indication the function is non optimizeable. The pointer to the callback
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* function pointer is stored as void* and needs to be casted according to the argument count. Negative argument counts
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* indicate a parser function with a variable number of arguments.
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*
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* @author (C) 2004-2011 Ingo Berg
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*/
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class QmuParserCallback
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{
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public:
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QmuParserCallback(fun_type0 a_pFun, bool a_bAllowOpti);
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QmuParserCallback(fun_type1 a_pFun, bool a_bAllowOpti, int a_iPrec = -1, ECmdCode a_iCode=cmFUNC);
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QmuParserCallback(fun_type2 a_pFun, bool a_bAllowOpti, int a_iPrec, EOprtAssociativity a_eAssociativity);
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QmuParserCallback(fun_type2 a_pFun, bool a_bAllowOpti);
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QmuParserCallback(fun_type3 a_pFun, bool a_bAllowOpti);
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QmuParserCallback(fun_type4 a_pFun, bool a_bAllowOpti);
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QmuParserCallback(fun_type5 a_pFun, bool a_bAllowOpti);
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QmuParserCallback(fun_type6 a_pFun, bool a_bAllowOpti);
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QmuParserCallback(fun_type7 a_pFun, bool a_bAllowOpti);
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QmuParserCallback(fun_type8 a_pFun, bool a_bAllowOpti);
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QmuParserCallback(fun_type9 a_pFun, bool a_bAllowOpti);
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QmuParserCallback(fun_type10 a_pFun, bool a_bAllowOpti);
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QmuParserCallback(bulkfun_type0 a_pFun, bool a_bAllowOpti);
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QmuParserCallback(bulkfun_type1 a_pFun, bool a_bAllowOpti);
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QmuParserCallback(bulkfun_type2 a_pFun, bool a_bAllowOpti);
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QmuParserCallback(bulkfun_type3 a_pFun, bool a_bAllowOpti);
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QmuParserCallback(bulkfun_type4 a_pFun, bool a_bAllowOpti);
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QmuParserCallback(bulkfun_type5 a_pFun, bool a_bAllowOpti);
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QmuParserCallback(bulkfun_type6 a_pFun, bool a_bAllowOpti);
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QmuParserCallback(bulkfun_type7 a_pFun, bool a_bAllowOpti);
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QmuParserCallback(bulkfun_type8 a_pFun, bool a_bAllowOpti);
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QmuParserCallback(bulkfun_type9 a_pFun, bool a_bAllowOpti);
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QmuParserCallback(bulkfun_type10 a_pFun, bool a_bAllowOpti);
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QmuParserCallback(multfun_type a_pFun, bool a_bAllowOpti);
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QmuParserCallback(strfun_type1 a_pFun, bool a_bAllowOpti);
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QmuParserCallback(strfun_type2 a_pFun, bool a_bAllowOpti);
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QmuParserCallback(strfun_type3 a_pFun, bool a_bAllowOpti);
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QmuParserCallback();
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QmuParserCallback(const QmuParserCallback &a_Fun);
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QmuParserCallback &operator=(const QmuParserCallback &a_Fun);
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QmuParserCallback* Clone() const;
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bool IsOptimizable() const;
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void* GetAddr() const;
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ECmdCode GetCode() const;
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ETypeCode GetType() const;
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int GetPri() const;
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EOprtAssociativity GetAssociativity() const;
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int GetArgc() const;
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private:
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void *m_pFun; ///< Pointer to the callback function, casted to void
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/**
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* @brief Number of numeric function arguments
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*
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* This number is negative for functions with variable number of arguments. in this cases
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* they represent the actual number of arguments found.
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*/
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int m_iArgc;
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int m_iPri; ///< Valid only for binary and infix operators; Operator precedence.
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EOprtAssociativity m_eOprtAsct; ///< Operator associativity; Valid only for binary operators
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ECmdCode m_iCode;
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ETypeCode m_iType;
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bool m_bAllowOpti; ///< Flag indication optimizeability
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};
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//---------------------------------------------------------------------------------------------------------------------
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/**
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* @brief Container for Callback objects.
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*/
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typedef std::map<QString, QmuParserCallback> funmap_type;
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//---------------------------------------------------------------------------------------------------------------------
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/**
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* @brief Clone this instance and return a pointer to the new instance.
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*/
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inline QmuParserCallback* QmuParserCallback::Clone() const
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{
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return new QmuParserCallback ( *this );
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}
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//---------------------------------------------------------------------------------------------------------------------
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/**
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* @brief Return true if the function is conservative.
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*
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* Conservative functions return always the same result for the same argument.
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* @throw nothrow
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*/
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// cppcheck-suppress unusedFunction
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inline bool QmuParserCallback::IsOptimizable() const
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{
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return m_bAllowOpti;
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}
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//---------------------------------------------------------------------------------------------------------------------
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/**
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* @brief Get the callback address for the parser function.
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*
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* The type of the address is void. It needs to be recasted according to the argument number to the right type.
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*
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* @throw nothrow
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* @return #pFun
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*/
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inline void* QmuParserCallback::GetAddr() const
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{
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return m_pFun;
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}
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//---------------------------------------------------------------------------------------------------------------------
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/**
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* @brief Return the callback code.
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*/
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inline ECmdCode QmuParserCallback::GetCode() const
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{
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return m_iCode;
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}
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//---------------------------------------------------------------------------------------------------------------------
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inline ETypeCode QmuParserCallback::GetType() const
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{
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return m_iType;
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}
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//---------------------------------------------------------------------------------------------------------------------
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/**
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* @brief Return the operator precedence.
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* @throw nothrown
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*
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* Only valid if the callback token is an operator token (binary or infix).
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*/
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inline int QmuParserCallback::GetPri() const
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{
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return m_iPri;
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}
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//---------------------------------------------------------------------------------------------------------------------
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/**
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* @brief Return the operators associativity.
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* @throw nothrown
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*
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* Only valid if the callback token is a binary operator token.
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*/
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inline EOprtAssociativity QmuParserCallback::GetAssociativity() const
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{
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return m_eOprtAsct;
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}
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//---------------------------------------------------------------------------------------------------------------------
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/**
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* @brief Returns the number of function Arguments.
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*/
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inline int QmuParserCallback::GetArgc() const
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{
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return m_iArgc;
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}
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} // namespace qmu
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#endif
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