TypeName.h

/*
 
MIT License
 
Copyright (c) 2017 FMI Open Development / Markus Peura, first.last@fmi.fi
 
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
 
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
 
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
 
*/
/*
Part of Rack development has been done in the BALTRAD projects part-financed
by the European Union (European Regional Development Fund and European
Neighbourhood Partnership Instrument, Baltic Sea Region Programme 2007-2013)
*/
#ifndef DRAIN_TYPE_NAME
#define DRAIN_TYPE_NAME
 
#include <iostream>
#include <typeinfo>
// #include <bits/types.h> // uint8, uint16 etc
#include <cstdint>
 
#include <vector>
 
 
 
namespace drain {
 
 
 
 
/*
 
*/
template <typename T>
struct TypeName
{
 
    static
    const std::string & str();
 
    inline
    operator const std::string & () const{
        return str();
    }
 
};
 
template <typename T>
const std::string & TypeName<T>::str(){
    static
    const std::string name(typeid(T).name());
    return name;
}
 
 
 
/*
 
*/
template <typename T>
inline
std::ostream & operator<<(std::ostream & ostr, const TypeName<T> &t){
    ostr << t.str();
    return ostr;
}
 
 
 
 
// Main macro
#define DRAIN_TYPENAME(tname)   template <>  inline const std::string & drain::TypeName<tname>::str(){static const std::string n(#tname); return n;}
// Variant for stripping off the trailing '_t'
#define DRAIN_TYPENAME_t(tname) template <>  inline const std::string & drain::TypeName<tname##_t>::str(){static const std::string n(#tname); return n;}
 
// Variant for
#define DRAIN_TYPENAME_T(cname,T) template <class T> struct TypeName<cname<T> > {static const std::string & str(){static const std::string n=std::string(#cname)+'<'+drain::TypeName<T>::str()+'>'; return n;}}
// #define DRAIN_TYPENAME_T_0(cname,T)  template <class T> struct TypeName<cname<T> > {static const std::string & str(){static const std::string n=drain::StringBuilder<>(#cname, '<', drain::TypeName<T>::str(),'>'); return n;}}
 
 
DRAIN_TYPENAME(char);
DRAIN_TYPENAME_t(int8);
DRAIN_TYPENAME_t(uint8);
DRAIN_TYPENAME_t(int16);
DRAIN_TYPENAME_t(uint16);
DRAIN_TYPENAME_t(int32);
DRAIN_TYPENAME_t(uint32);
DRAIN_TYPENAME_t(int64);
DRAIN_TYPENAME_t(uint64);
 
DRAIN_TYPENAME(void);
DRAIN_TYPENAME(bool);
DRAIN_TYPENAME(float);
DRAIN_TYPENAME(double);
// NEWOLD
DRAIN_TYPENAME(char *);
DRAIN_TYPENAME(const char *);  // why const separately...?
DRAIN_TYPENAME(std::string);
 
 
DRAIN_TYPENAME_T(std::initializer_list, T);
DRAIN_TYPENAME_T(std::vector, T);
 
 
 
 
 
class simpleName {
 
public:
 
    typedef std::string value_t;
    // typedef const std::string & value_t;
 
    template <class S, class T>
    static
    T callback(){
        //return TypeName<S>::get();
        return TypeName<S>::str();
    }
 
 
};
 
 
 
} // drain::
 
#endif