src/TrackFitting/GsfError.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/TrackFitting/GsfError.hpp"
0010
0011 #include <string>
0012
0013 namespace {
0014
0015 class GsfErrorCategory : public std::error_category {
0016  public:
0017   // Return a short descriptive name for the category.
0018   const char* name() const noexcept final { return "GsfError"; }
0019
0020   // Return what each enum means in text.
0021   std::string message(int c) const final {
0022     using Acts::GsfError;
0023
0024     switch (static_cast<GsfError>(c)) {
0025       case GsfError::StartParametersHaveNoCovariance:
0026         return "Start parameters have no Covariance";
0027       case GsfError::NoMeasurementStatesCreatedForward:
0028         return "No measurement states found in the forward pass";
0029       case GsfError::NoMeasurementStatesCreatedBackward:
0030         return "No measurement states found in the backward pass";
0031       case GsfError::NoMeasurementStatesCreatedFinal:
0032         return "No measurement states in the final trajectory";
0033       default:
0034         return "unknown";
0035     }
0036   }
0037 };
0038
0039 }  // namespace
0040
0041 std::error_code Acts::make_error_code(Acts::GsfError e) {
0042   static GsfErrorCategory c;
0043   return {static_cast<int>(e), c};
0044 }