parameter_generator.h

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/*
 * Copyright 2021 MusicScience37 (Kenta Kabashima)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#pragma once
 
#include <memory>
#include <string>
#include <utility>
#include <vector>
 
#include "stat_bench/param/parameter_dict.h"
#include "stat_bench/param/parameter_name.h"
#include "stat_bench/param/parameter_value_vector.h"
 
namespace stat_bench {
namespace param {

class ParameterGenerator {
public:
    explicit ParameterGenerator(const std::vector<std::pair<ParameterName,
            std::shared_ptr<IParameterValueVector>>>& params);

    [[nodiscard]] auto iterate() -> bool;

    [[nodiscard]] auto generate() const -> ParameterDict;
 
private:
    struct ParamData {
        ParameterName name{""};

        std::shared_ptr<IParameterValueVector> values{};

        IParameterValueVector::ConstIterator next{};

        IParameterValueVector::ConstIterator begin{};

        IParameterValueVector::ConstIterator end{};
    };

    std::vector<ParamData> params_{};
};
 
}  // namespace param
}  // namespace stat_bench