VariableT.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_VARIABLE_T
#define DRAIN_VARIABLE_T
 
#include <drain/Castable.h>
#include <drain/UniTuple.h> // "Friend class"
 
namespace drain {
 
//class Variable;
//class FlexibleVariable;
//class Reference;
 
 
 
template <class T>
class VariableT : public T {
 
public:
 
    typedef T varbase_t;
 
    typedef std::pair<const char *,const drain::VariableT<T> > init_pair_t;
 
    inline
    VariableT(){};
 
    inline
    VariableT(const VariableT<T> & v) : T(v) {
        this->init(v);
    };
 
 
    template <class ...TT>
    inline
    VariableT(const TT & ...args) {
        // std::cerr << __FILE__ << ':' << __LINE__ << ':' << __FUNCTION__ << "( variadics )" << '[' << typeid(VariableT<T>).name() << ']'<< std::endl;
        // std::cerr << __FILE__ << ':' << __LINE__ << ':' << __FUNCTION__ << " " << value <<  std::endl;
        this->init(args...); // invokes  T::init(...)
    }
 
 
    // VariableT(const VariableT<T> & v);
    // TODO: CHECK: -Wdeprecated-copy fires because operator=(const VariableT<T>&) below is
    // user-declared but no copy constructor is; the implicit one is used instead (and is relied
    // on, per the note above: an explicit copy constructor was tried and rejected because it
    // intercepted calls meant for the variadic template constructor's init(args...) path).
    // Confirm the implicit copy constructor's plain member/base copy is what copies actually need.
 
 
 
 
    template <class D>
    inline
    VariableT(D & arg) {
        this->init(arg); // invokes  T::init(...)
    }
 
 
 
 
    virtual
    bool requestType(const std::type_info & t);
 
 
 
    virtual
    bool suggestType(const std::type_info & t);
 
 
 
    virtual
    bool requestSize(size_t elementCount);
 
 
    inline
    VariableT & operator=(const VariableT<T> &x){  // VariableT<T>
        this->assignCastable(x);
        // this->append(7); // DEBUG
        return *this;
    }
 
 
    template <class T2>
    inline
    VariableT & operator=(const VariableT<T2> &x){  // VariableT<T>
        this->assignCastable(x);
        // this->append(5); // DEBUG
        return *this;
    }
 
    // This will never be called?
    inline
    VariableT & operator=(const T &x){
        this->assignCastable(x);
        std::cerr << __FILE__ << ':' << __FUNCTION__ << ": ? for inner class: "<< TypeName<T>::str() << std::endl;
        //this->append("Inner");
        return *this;
    }
 
 
    inline
    VariableT & operator=(const Castable &x){
        this->assignCastable(x);
        return *this;
    }
 
 
    template <class T2>
    inline
    VariableT & operator=(const T2 &x){
        this->assign(x);
        return *this;
    }
 
    template <class T2>
    inline
    VariableT & operator=(std::initializer_list<T2> l){
        this->assignContainer(l, false);
        return *this;
    }
 
 
    inline
    VariableT & operator=(const char *x){
        this->assign(x);
        return *this;
    }
 
    // Could be removed ? Handled by assign<T>() ?
    template <class T2, size_t N>
    inline
    VariableT &operator=(const UniTuple<T2,N> & unituple){
        this->assignContainer(unituple);
        return *this;
    }
 
    /*
    template <class T2>
    inline
    T2 get() const {
        //this->caster.get<double>();
        return T2();
    }
    */
 
 
    template <class T2>
    inline
    bool operator==(const VariableT<T2> & v) const {
        return Castable::operator==((const Castable &) v);
    }
 
    template <class T2>
    inline
    bool operator==(const T2 &x) const {
        return Castable::operator==(x);
    }
 
    inline
    bool operator==(const char *s) const {
        return Castable::operator==(s);
    }
 
    template <class T2>
    inline
    bool operator!=(const VariableT<T2> & v) const{
        return ! Castable::operator==((const Castable &) v);
    }
 
    template <class T2>
    inline
    bool operator!=(const T2 &x) const {
        return ! Castable::operator==(x);
    }
 
    inline
    bool operator!=(const char *x) const {
        // std::cerr << __FILE__ << ':' << __LINE__ << ':' << __FUNCTION__ << " type: " << typeid(x).name() << std::endl;
        return ! Castable::operator==(x);
    }
 
 
    // Default
    inline
    void info(std::ostream & ostr = std::cout) const {
        Castable::info(ostr);
    }
 
protected:
 
    /*
    static inline
    bool compareByteByByte(const Castable & c1, const Castable & c2){
 
        if (c1.getType() != c2.getType())
            return false;
 
        if (c1.getElementSize() != c2.getElementSize())
            return false;
 
        if (c1.getElementCount() != c2.getElementCount())
            return false;
 
        //const char *c1 = c1.getPtr();
        for (size_t i = 0; i<c1.getElementCount(); ++i){
            if (*c1.getPtr(i) != *c2.getPtr(i))
                return false;
        }
 
        return true;
    }
    */
 
};
 
 
 
} // drain
 
#endif