evaluator.h

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#if !defined(ULTRA_EVALUATOR_H)
#define      ULTRA_EVALUATOR_H
 
#include "kernel/evaluation_context.h"
#include "kernel/individual.h"
#include "kernel/fitness.h"
#include "kernel/random.h"
 
#include "utility/log.h"
#include "utility/misc.h"
 
#include <functional>
#include <thread>
 
namespace ultra
{


template<class F, class I = closure_arg_t<F>>
concept Evaluator =
  Individual<I> && std::invocable<const F &, I>
  && Fitness<std::invoke_result_t<F, I>>;
 
template<Evaluator E> using evaluator_individual_t = closure_arg_t<E>;
template<Evaluator E> using evaluator_fitness_t = closure_return_t<E>;
 
enum class test_evaluator_type {realistic, fixed, random, age};


template<Individual I>
class test_evaluator
{
public:
  explicit test_evaluator(test_evaluator_type = test_evaluator_type::random);
 
  void delay(std::chrono::milliseconds) noexcept;
 
  [[nodiscard]] double operator()(const I &) const;
 
private:
  const test_evaluator_type et_;
 
  std::chrono::milliseconds delay_ {0};
};
 
#include "kernel/evaluator.tcc"
 
}  // namespace ultra
 
#endif  // include guard