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VertexFinderConcept.hpp
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1 // This file is part of the Acts project.
2 //
3 // Copyright (C) 2019 CERN for the benefit of the Acts project
4 //
5 // This Source Code Form is subject to the terms of the Mozilla Public
6 // License, v. 2.0. If a copy of the MPL was not distributed with this
7 // file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 
9 #pragma once
10 
16 
17 namespace Acts {
18 
19 namespace Concepts {
20 namespace VertexFinder {
21 
22 template <typename T>
23 using state_t = typename T::State;
24 
25 METHOD_TRAIT(find_t, find);
26 
27 // clang-format off
28  template <typename S>
30  constexpr static bool state_exists = exists<state_t, S>;
31  static_assert(state_exists, "State type not found");
32 
33  constexpr static bool find_exists = has_method<const S, Result<std::vector<Vertex<typename S::InputTrack_t>>>,
34  find_t, const std::vector<const typename S::InputTrack_t*>&,
35  const VertexingOptions<typename S::InputTrack_t>&, typename S::State&>;
36  static_assert(find_exists, "find method not found");
37 
38  constexpr static bool value = require<state_exists, find_exists>;
39  };
40 // clang-format on
41 } // namespace VertexFinder
42 } // namespace Concepts
43 
44 template <typename finder>
45 constexpr bool VertexFinderConcept =
47 
48 } // namespace Acts