fluxvariablescaching.hh

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// -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
// vi: set et ts=4 sw=4 sts=4:
//
// SPDX-FileCopyrightInfo: Copyright © DuMux Project contributors, see AUTHORS.md in root folder
// SPDX-License-Identifier: GPL-3.0-or-later
//
#ifndef DUMUX_DISCRETIZATION_FLUXVAR_CACHING_HH
#define DUMUX_DISCRETIZATION_FLUXVAR_CACHING_HH
 
namespace Dumux {
namespace FluxVariablesCaching {
 
struct EmptyCacheFiller
{
    EmptyCacheFiller() = default;
 
    template<class Problem>
    EmptyCacheFiller(const Problem& p) {}
 
    static constexpr bool isSolDependent = false; // the cache is empty
 
    template<typename... Args>
    static void fill(Args&&... args) {}
};
 
template<class S>
struct EmptyCache
{
    using Scalar = S;
 
    template<typename... Args>
    void update(Args&&... args) {}
};
 
#ifndef DOXYGEN // hide the empty caches from doxygen
// an empty cache filler
// \note Never use the _EmptyCache directly as it lead to ambiguous definitions
struct _EmptyCache
{ using Filler = EmptyCacheFiller; };
#endif // DOXYGEN
 
struct EmptyAdvectionCache : public _EmptyCache {};
struct EmptyDiffusionCache : public _EmptyCache {};
struct EmptyHeatConductionCache : public _EmptyCache {};
 
} // end namespace FluxVariablesCaching
} // end namespace Dumux
 
#endif