src/Propagator/MultiStepperError.cpp

0001 // This file is part of the ACTS project.
0002 //
0003 // Copyright (C) 2016 CERN for the benefit of the ACTS project
0004 //
0005 // This Source Code Form is subject to the terms of the Mozilla Public
0006 // License, v. 2.0. If a copy of the MPL was not distributed with this
0007 // file, You can obtain one at https://mozilla.org/MPL/2.0/.
0008
0009 #include "Acts/Propagator/MultiStepperError.hpp"
0010
0011 #include <string>
0012
0013 namespace {
0014
0015 class MultiStepperErrorCategory : public std::error_category {
0016  public:
0017   // Return a short descriptive name for the category.
0018   const char* name() const noexcept final { return "MultiStepperError"; }
0019
0020   // Return what each enum means in text.
0021   std::string message(int c) const final {
0022     using Acts::MultiStepperError;
0023
0024     switch (static_cast<MultiStepperError>(c)) {
0025       case MultiStepperError::ComponentNotOnSurface:
0026         return "Component is not on a surface";
0027       case MultiStepperError::StateOfMultipleComponentsRequested:
0028         return "The global BoundState/CurvilinearState can only be computed if "
0029                "only one component exists";
0030       case MultiStepperError::AverageTrackLeftCurrentVolume:
0031         return "The average track has left the current volume";
0032       case MultiStepperError::AllComponentsSteppingError:
0033         return "Stepping error occurred in all components";
0034       case MultiStepperError::AllComponentsConversionToBoundFailed:
0035         return "The conversion to the bound state failed for all components";
0036       case MultiStepperError::SomeComponentsConversionToBoundFailed:
0037         return "The conversion to the bound state failed for some components";
0038       default:
0039         return "unknown";
0040     }
0041   }
0042 };
0043
0044 }  // namespace
0045
0046 std::error_code Acts::make_error_code(Acts::MultiStepperError e) {
0047   static MultiStepperErrorCategory c;
0048   return {static_cast<int>(e), c};
0049 }