scope_guard.hpp

// Copyright (C) The DDC development team, see COPYRIGHT.md file
//
// SPDX-License-Identifier: MIT
 
#pragma once
 
#include <functional>
#include <map>
#include <optional>
#include <string>
 
#include "discrete_space.hpp"
 
namespace ddc {
 
class ScopeGuard
{
    static void discretization_store_initialization()
    {
        detail::g_discretization_store
                = std::make_optional<std::map<std::string, std::function<void()>>>();
    }
 
public:
    ScopeGuard()
    {
        discretization_store_initialization();
    }
 
    ScopeGuard([[maybe_unused]] int argc, [[maybe_unused]] char**& argv)
    {
        discretization_store_initialization();
    }
 
    ScopeGuard(ScopeGuard const& x) = delete;
 
    ScopeGuard(ScopeGuard&& x) noexcept = delete;
 
    ~ScopeGuard() noexcept
    {
        for (auto const& [name, fn] : *detail::g_discretization_store) {
            fn();
        }
        detail::g_discretization_store.reset();
    }
 
    ScopeGuard& operator=(ScopeGuard const& x) = delete;
 
    ScopeGuard& operator=(ScopeGuard&& x) noexcept = delete;
};
 
} // namespace ddc