Specs.hpp

// sciplot - a modern C++ scientific plotting library powered by gnuplot
// https://github.com/sciplot/sciplot
//
// Licensed under the MIT License <http://opensource.org/licenses/MIT>.
//
// Copyright (c) 2018-2021 Allan Leal
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
 
#pragma once
 
// C++ includes
#include <string>
 
namespace sciplot {
 
template <typename DerivedSpecs>
class Specs
{
  public:
    virtual ~Specs() = default;
 
    virtual auto repr() const -> std::string = 0;
 
    operator std::string() const { return repr(); }
 
    auto derived() -> DerivedSpecs& { return static_cast<DerivedSpecs&>(*this); }
 
    auto derived() const -> const DerivedSpecs& { return static_cast<const DerivedSpecs&>(*this); }
};
 
template <typename DerivedSpecs>
auto operator<<(std::ostream& stream, const Specs<DerivedSpecs>& obj) -> std::ostream&
{
    return stream << obj.repr();
}
 
} // namespace sciplot