Seeding/detail/UtilityFunctions.hpp

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 #pragma once
0010
0011 #include "Acts/EventData/SourceLink.hpp"
0012
0013 #include <ranges>
0014
0015 namespace Acts::detail {
0016
0017 // Define some concepts
0018 template <typename external_t>
0019 concept isCollectionThatSupportsPushBack =
0020     std::ranges::range<external_t> && requires {
0021       typename external_t::value_type;
0022     } && requires(external_t coll, typename external_t::value_type val) {
0023       coll.push_back(val);
0024     };
0025
0026 template <typename external_t>
0027 concept isCollectionThatSupportsInsert =
0028     std::ranges::range<external_t> && requires {
0029       typename external_t::value_type;
0030     } && requires(external_t coll, typename external_t::value_type val) {
0031       coll.insert(std::ranges::end(coll), val);
0032     };
0033
0034 template <typename grid_t>
0035 concept SourceLinkGrid =
0036     std::same_as<typename grid_t::value_type, std::vector<Acts::SourceLink>>;
0037
0038 // Define some functions
0039 template <Acts::detail::isCollectionThatSupportsPushBack storage_t,
0040           typename value_t>
0041   requires requires(storage_t coll, value_t value) {
0042     coll.push_back(value);
0043     coll.push_back(std::move(value));
0044   }
0045 void pushBackOrInsertAtEnd(storage_t& storage, value_t&& value) {
0046   storage.push_back(std::forward<value_t>(value));
0047 }
0048
0049 template <std::ranges::range storage_t, typename value_t>
0050   requires(!Acts::detail::isCollectionThatSupportsPushBack<storage_t> &&
0051            Acts::detail::isCollectionThatSupportsInsert<storage_t> &&
0052            requires(storage_t coll, value_t value) {
0053              coll.insert(std::ranges::end(coll), value);
0054              coll.insert(std::ranges::end(coll), std::move(value));
0055            })
0056 void pushBackOrInsertAtEnd(storage_t& storage, value_t&& value) {
0057   storage.insert(std::ranges::end(storage), std::forward<value_t>(value));
0058 }
0059
0060 }  // namespace Acts::detail