geocel/g4/GeantGeoTraits.hh

0001 //------------------------------- -*- C++ -*- -------------------------------//
0002 // Copyright Celeritas contributors: see top-level COPYRIGHT file for details
0003 // SPDX-License-Identifier: (Apache-2.0 OR MIT)
0004 //---------------------------------------------------------------------------//
0005 //! \file geocel/g4/GeantGeoTraits.hh
0006 //---------------------------------------------------------------------------//
0007 #pragma once
0008
0009 #include "corecel/Config.hh"
0010
0011 #include "geocel/GeoTraits.hh"
0012
0013 namespace celeritas
0014 {
0015 //---------------------------------------------------------------------------//
0016 class GeantGeoParams;
0017 class GeantGeoTrackView;
0018 template<Ownership W, MemSpace M>
0019 struct GeantGeoParamsData;
0020 template<Ownership W, MemSpace M>
0021 struct GeantGeoStateData;
0022
0023 #if CELERITAS_USE_GEANT4
0024 //---------------------------------------------------------------------------//
0025 /*!
0026  * Traits specialization for Geant4 geometry.
0027  */
0028 template<>
0029 struct GeoTraits<GeantGeoParams>
0030 {
0031     //! Params data used during runtime
0032     template<Ownership W, MemSpace M>
0033     using ParamsData = GeantGeoParamsData<W, M>;
0034
0035     //! State data used during runtime
0036     template<Ownership W, MemSpace M>
0037     using StateData = GeantGeoStateData<W, M>;
0038
0039     //! Geometry track view
0040     using TrackView = GeantGeoTrackView;
0041
0042     //! Geant4 does not have 'surfaces'
0043     static constexpr bool has_impl_surface = false;
0044
0045     //! Descriptive name for the geometry
0046     static constexpr char const name[] = "Geant4";
0047
0048     //! TO BE REMOVED: "native" file extension for this geometry
0049     static constexpr char const ext[] = ".gdml";
0050 };
0051 #else
0052 //! Geant4 is unavailable
0053 template<>
0054 struct GeoTraits<GeantGeoParams> : NotConfiguredGeoTraits
0055 {
0056 };
0057 #endif
0058
0059 //---------------------------------------------------------------------------//
0060 }  // namespace celeritas