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File indexing completed on 2025-09-15 09:06:13
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 orange/orangeinp/detail/TransformInserter.hh 0006 //---------------------------------------------------------------------------// 0007 #pragma once 0008 0009 #include <unordered_set> 0010 #include <vector> 0011 0012 #include "orange/transform/VariantTransform.hh" 0013 0014 namespace celeritas 0015 { 0016 namespace orangeinp 0017 { 0018 namespace detail 0019 { 0020 //---------------------------------------------------------------------------// 0021 /*! 0022 * Deduplicate transforms as they're being built. 0023 * 0024 * This currently only works for *exact* transforms rather than *almost exact* 0025 * transforms. We may eventually want to add a "transform simplifier" and 0026 * "transform soft equal". 0027 */ 0028 class TransformInserter 0029 { 0030 public: 0031 //!@{ 0032 //! \name Type aliases 0033 using VecTransform = std::vector<VariantTransform>; 0034 //!@} 0035 0036 public: 0037 // Construct with a pointer to the transform vector 0038 explicit TransformInserter(VecTransform* transforms); 0039 0040 // Construct a transform with deduplication 0041 TransformId operator()(VariantTransform&& vt); 0042 0043 private: 0044 //// TYPES //// 0045 0046 struct HashTransform 0047 { 0048 VecTransform* storage{nullptr}; 0049 std::size_t operator()(TransformId) const; 0050 }; 0051 struct EqualTransform 0052 { 0053 VecTransform* storage{nullptr}; 0054 bool operator()(TransformId, TransformId) const; 0055 }; 0056 0057 //// DATA //// 0058 0059 VecTransform* transform_; 0060 std::unordered_set<TransformId, HashTransform, EqualTransform> cache_; 0061 0062 //// HELPER FUNCTIONS //// 0063 0064 //! Get the ID of the next transform to be inserted 0065 TransformId size_id() const { return TransformId(transform_->size()); } 0066 }; 0067 0068 //---------------------------------------------------------------------------// 0069 } // namespace detail 0070 } // namespace orangeinp 0071 } // namespace celeritas
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