expr.hpp

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#pragma once
 
#include "core/ast/args.hpp"
#include "core/ast/src/src.hpp"
 
struct exprTest;
 
namespace by {
 
    class _nout expr: public node {
    public:
        // expr can be casted to @ref node. it's proxy.
        class _nout exprType: public ntype {
            BY(ME(exprType, ntype))
 
        public:
            nbool isImpli(const type& to) const override;
 
            using super::asImpli;
            str asImpli(const node& from, const type& to) const override;
        };
 
        BY(ADT(expr, node, exprType))
        friend class exprMaker;
        friend struct ::exprTest;
 
    public:
        using super::subs;
        scope& subs() override;
 
        using super::isImpli;
        nbool isImpli(const type& to) const override;
 
        using super::prioritize;
        priorType prioritize(const args& a) const override;
 
        const src& getSrc() const override;
 
    private:
        void _setSrc(const src& newSrc) override;
 
    protected:
        tstr<src> _src;
        point _pos;
    };
} // namespace by