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#ifndef FF_FSA_DYNAMIC_H
#define FF_FSA_DYNAMIC_H
#include "ff_fsa.h"
// the type-erased interface
/*
struct FsaFeatureFunction {
virtual int markov_order() const = 0;
virtual ~FsaFeatureFunction();
};
// conforming to above interface, type erases FsaImpl
// you might be wondering: why do this? answer: it's cool, and it means that the bottom-up ff over ff_fsa wrapper doesn't go through multiple layers of dynamic dispatch
template <class Impl>
struct FsaFeatureFunctionDynamic : public FsaFeatureFunction {
Impl& d() { return static_cast<Impl&>(*this); }
Impl const& d() { return static_cast<Impl const&>(*this); }
int markov_order() const { return d().markov_order(); }
};
//TODO: wrap every method in concrete fsaff and declare in interface above.
//TODO: combine 2 (or N) FsaFeatureFunction (type erased)
*/
#endif
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