SHiPMaterials.h

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// SPDX-License-Identifier: LGPL-3.0-or-later
// Copyright (C) CERN for the benefit of the SHiP Collaboration
 
#pragma once
 
#include <functional>
#include <map>
#include <string>
#include <string_view>
 
class GeoMaterial;
class GeoElement;
 
namespace SHiPGeometry {
 
class SHiPMaterials {
   public:
    SHiPMaterials();
    ~SHiPMaterials() = default;
 
    // Prevent copying (materials should be shared)
    SHiPMaterials(const SHiPMaterials&) = delete;
    SHiPMaterials& operator=(const SHiPMaterials&) = delete;
 
    [[nodiscard]] GeoMaterial* getMaterial(std::string_view name) const;
 
    [[nodiscard]] GeoMaterial* requireMaterial(std::string_view name) const;
 
   private:
    void createElements();
    void createMaterials();
 
    std::map<std::string, GeoElement*> m_elements;
    std::map<std::string, GeoMaterial*, std::less<>> m_materials;
};
 
}  // namespace SHiPGeometry