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|---|---|---|---|
| 1 | // -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- | ||
| 2 | // vi: set et ts=4 sw=4 sts=4: | ||
| 3 | // | ||
| 4 | // SPDX-FileCopyrightText: Copyright © DuMux Project contributors, see AUTHORS.md in root folder | ||
| 5 | // SPDX-License-Identifier: GPL-3.0-or-later | ||
| 6 | // | ||
| 7 | /*! | ||
| 8 | * \file | ||
| 9 | * \ingroup Typetraits | ||
| 10 | * \brief Type traits to be used for detecting new interfaces related to local dofs | ||
| 11 | */ | ||
| 12 | #ifndef DUMUX_TYPETRAITS_LOCALDOFS__HH | ||
| 13 | #define DUMUX_TYPETRAITS_LOCALDOFS__HH | ||
| 14 | |||
| 15 | #include <type_traits> | ||
| 16 | #include <dune/common/std/type_traits.hh> | ||
| 17 | #include <dune/common/rangeutilities.hh> | ||
| 18 | |||
| 19 | #include <dumux/common/indextraits.hh> | ||
| 20 | #include <dumux/discretization/cvfe/localdof.hh> | ||
| 21 | |||
| 22 | namespace Dumux::Detail::LocalDofs { | ||
| 23 | |||
| 24 | //! helper struct detecting if a fvElementGeometry object has a numLocalDofs() function | ||
| 25 | template<class Imp> | ||
| 26 | using NumLocalDofsDetector = decltype( | ||
| 27 | std::declval<Imp>().numLocalDofs() | ||
| 28 | ); | ||
| 29 | |||
| 30 | template<typename FVElementGeometry> | ||
| 31 |
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22140238 | constexpr int numLocalDofs(const FVElementGeometry& fvGeometry) |
| 32 | { | ||
| 33 | if constexpr (Dune::Std::is_detected<NumLocalDofsDetector, FVElementGeometry>::value) | ||
| 34 | 1095402 | return fvGeometry.numLocalDofs(); | |
| 35 | else | ||
| 36 |
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14874973 | return fvGeometry.numScv(); |
| 37 | } | ||
| 38 | |||
| 39 | //! helper struct detecting if a fvElementGeometry object has maxNumElementDofs | ||
| 40 | template<class Imp> | ||
| 41 | using MaxNumElementDofs = decltype( Imp::maxNumElementDofs ); | ||
| 42 | |||
| 43 | template<typename FVElementGeometry> | ||
| 44 | constexpr int maxNumLocalDofs() | ||
| 45 | { | ||
| 46 | if constexpr (Dune::Std::is_detected<MaxNumElementDofs, FVElementGeometry>::value) | ||
| 47 | return FVElementGeometry::maxNumElementDofs; | ||
| 48 | else | ||
| 49 | return FVElementGeometry::maxNumElementScvs; | ||
| 50 | } | ||
| 51 | |||
| 52 | //! helper struct detecting if a class has a localDofIndex() function | ||
| 53 | template<class Imp> | ||
| 54 | using LocalDofIndexDetector = decltype( | ||
| 55 | std::declval<Imp>().localDofIndex() | ||
| 56 | ); | ||
| 57 | |||
| 58 | template<class ScvOrLocalDof> | ||
| 59 |
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17272452 | inline auto index(const ScvOrLocalDof& scvOrLocalDof) |
| 60 | { | ||
| 61 | if constexpr (Dune::Std::is_detected<LocalDofIndexDetector, ScvOrLocalDof>::value) | ||
| 62 | return scvOrLocalDof.localDofIndex(); | ||
| 63 | else | ||
| 64 |
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17272452 | return scvOrLocalDof.index(); |
| 65 | } | ||
| 66 | |||
| 67 | //! helper struct detecting if a fvElementGeometry object defines its own local dof type | ||
| 68 | template<class FVG> | ||
| 69 | using SpecifiesLocalDof = typename FVG::LocalDof; | ||
| 70 | |||
| 71 | template<class FVG> | ||
| 72 | using LocalDof_t = Dune::Std::detected_or_t< | ||
| 73 | Dumux::CVFE::LocalDof<typename IndexTraits<typename FVG::GridGeometry::GridView>::LocalIndex, | ||
| 74 | typename IndexTraits<typename FVG::GridGeometry::GridView>::GridIndex >, | ||
| 75 | SpecifiesLocalDof, | ||
| 76 | FVG | ||
| 77 | >; | ||
| 78 | |||
| 79 | //! helper struct detecting if a type corresponds to a local dof | ||
| 80 | template<class Imp> | ||
| 81 | constexpr inline bool isLocalDofType() | ||
| 82 | { | ||
| 83 | using LocalIndexType = std::decay_t<decltype(index(std::declval<Imp>()))>; | ||
| 84 | using GridIndexType = std::decay_t<decltype(std::declval<Imp>().dofIndex())>; | ||
| 85 | |||
| 86 | return std::is_base_of_v<Dumux::CVFE::LocalDof<LocalIndexType, GridIndexType>, Imp>; | ||
| 87 | } | ||
| 88 | |||
| 89 | } // end namespace Dumux::Detail::LocalDofs | ||
| 90 | |||
| 91 | #endif | ||
| 92 |