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File indexing completed on 2025-09-16 08:52:43
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 corecel/sys/detail/ActionRegistryImpl.hh 0006 //---------------------------------------------------------------------------// 0007 #pragma once 0008 0009 #include <type_traits> 0010 0011 namespace celeritas 0012 { 0013 //---------------------------------------------------------------------------// 0014 class ActionInterface; 0015 0016 namespace detail 0017 { 0018 //---------------------------------------------------------------------------// 0019 //! Traits class for differentiating const from mutable actions. 0020 template<class T, class = void> 0021 struct ActionSpTraits 0022 { 0023 static constexpr bool is_const_action = false; 0024 static constexpr bool is_mutable_action = false; 0025 }; 0026 template<class T> 0027 struct ActionSpTraits<T, std::enable_if_t<std::is_base_of_v<ActionInterface, T>>> 0028 { 0029 static constexpr bool is_const_action = std::is_const_v<T>; 0030 static constexpr bool is_mutable_action = !is_const_action; 0031 }; 0032 0033 //---------------------------------------------------------------------------// 0034 //! True if T is a const class inheriting from ActionInterface. 0035 template<class T> 0036 inline constexpr bool is_const_action_v = ActionSpTraits<T>::is_const_action; 0037 0038 //---------------------------------------------------------------------------// 0039 //! True if T is a mutable class inheriting from ActionInterface. 0040 template<class T> 0041 inline constexpr bool is_mutable_action_v 0042 = ActionSpTraits<T>::is_mutable_action; 0043 0044 //---------------------------------------------------------------------------// 0045 } // namespace detail 0046 } // namespace celeritas
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