expander.hpp

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#pragma once
 
#include "core/worker/visitor/visitor.hpp"
#include "core/worker/visitor/expander/convergence/baseConvergence.hpp"
 
namespace by {
 
    class _nout expander: public visitor {
        BY(CLASS(expander, visitor))
 
        
        struct _nout expansion {
            nbool isExpanded() const;
 
        public:
            tweak<obj> me;
            tweak<func> fun;
        };
 
    public:
        expander();
 
    public:
        void rel() override;
 
        using super::onVisit;
 
        nbool onVisit(const visitInfo& i, defAssignExpr& me, nbool) override;
        nbool onVisit(const visitInfo& i, asExpr& me, nbool) override;
        nbool onVisit(const visitInfo& i, obj& me, nbool) override;
        void onLeave(const visitInfo& i, obj& me, nbool) override;
        nbool onVisit(const visitInfo& i, func& me, nbool) override;
        void onLeave(const visitInfo& i, func& me, nbool) override;
        nbool onVisit(const visitInfo& i, baseFunc& me, nbool) override;
        void onLeave(const visitInfo& i, baseFunc& me, nbool) override;
        nbool onVisit(const visitInfo& i, getGenericExpr& me, nbool) override;
 
    protected:
        void _onWork() override;
 
    private:
        nbool _onVisitParams(baseFunc& f, param& p);
        void _onVisitFuncRet(baseFunc& f);
 
        void _convergeTypes(errReport& rpt);
 
        void _rel();
 
        nbool _expandAll(errReport& rpt);
 
        nbool _expand(errReport& rpt, expansion& eval);
        void _delEval(const std::map<obj*, expansion>::iterator& e);
        void _expand();
        nbool _isAllExpanded(obj& key) const;
 
    private:
        std::map<obj*, expansion> _stack;
        tnarr<baseConvergence> _cons;
        std::vector<obj*> _obj;
        std::vector<baseFunc*> _funcs;
    };
} // namespace by