fierz.hh

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#pragma once

#include "Algorithm.hh"
#include "properties/Indices.hh"
#include "properties/Spinor.hh"

namespace cadabra {

    class fierz : public Algorithm {
        public:
            fierz(const Kernel&, Ex&, Ex&);
            
            virtual bool     can_apply(iterator) override;
            virtual result_t apply(iterator&) override;
            
        private:
            Ex              spinor_list;
            
            iterator        spin1, spin2, spin3, spin4;
            const Spinor   *prop1,*prop2,*prop3,*prop4;
            iterator        gam1, gam2;
            int             dim, spinordim;
            const Indices  *indprop;
    };
    
}