tscalar.hpp

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#pragma once
 
#include "core/ast/dumScope.hpp"
#include "core/ast/func.hpp"
#include "core/ast/scope.hpp"
#include "core/ast/src/dumSrc.hpp"
#include "core/type/as/tas.hpp"
#include "core/builtin/scalar/scalar.hpp"
 
namespace by {
 
    template <typename T> class tscalar: public scalar {
        BY(ADT(tscalar, scalar))
        typedef T trait;
 
    protected:
        template <typename E, typename RAW> class asPrimitive: public tas<E, T> {
            typedef tas<E, T> __super18;
            BY(CLASS(asPrimitive, __super18))
 
        public:
            str as(const node& me, const type& to) const override { return str(new E(*me.cast<RAW>())); }
 
        protected:
            str _onAs(const T& me, const type& to) const override { return str(); }
        };
 
    public:
        tscalar(): _val() {}
 
        tscalar(const T& val): _val(val) {}
 
    public:
        T& get() { return _val; }
 
        const T& get() const { return _val; }
 
        using super::cast;
 
        void* cast(const type& to) override {
            WHEN(to == ttype<T>::get()) .ret(&_val);
 
            return super::cast(to);
        }
 
    protected:
        nbool _onSame(const typeProvidable& rhs) const override {
            const me& cast = (const me&) rhs;
            return _val == cast._val;
        }
 
    private:
        T _val;
    };
 
    template <> class tscalar<void>: public scalar {
        BY(ADT(tscalar, scalar))
 
    protected:
        nbool _onSame(const typeProvidable& rhs) const override { return true; }
    };
} // namespace by